| NELLCOR PURITAN BENNETT LLC Patent applications |
| Patent application number | Title | Published |
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| 20120137250 | Ventilator-Initiated Prompt Regarding Detection Of Fluctuations In Resistance - This disclosure describes systems and methods for monitoring ventilatory parameters, analyzing ventilatory data associated with those parameters, and providing useful notifications and/or recommendations to clinicians. For example, many clinicians may not easily identify or recognize data patterns and correlations indicative of a fluctuation in resistance during mechanical ventilation of a patient. Furthermore, clinicians may not easily determine potential causes for the fluctuation in resistance and/or steps for mitigating the fluctuation in resistance. According to embodiments, a ventilator may be configured to monitor and evaluate diverse ventilatory parameters to detect fluctuations in resistance and may issue suitable notifications and recommendations to the clinician based on potential causes of the fluctuation, ventilatory and/or patient data, etc. The suitable notifications and recommendations may further be provided in a hierarchical format such that the clinician may selectively access information regarding the fluctuation in resistance. | 05-31-2012 |
| 20120137249 | Ventilator-Initiated Prompt Regarding Detection Of Double Triggering During Ventilation - This disclosure describes systems and methods for monitoring and evaluating ventilatory parameters, analyzing those parameters and providing useful notifications and recommendations to clinicians. That is, modern ventilators monitor, evaluate, and graphically represent multiple ventilatory parameters. However, many clinicians may not easily recognize data patterns and correlations indicative of certain patient conditions, changes in patient condition, and/or effectiveness of ventilatory treatment. Further, clinicians may not readily determine appropriate ventilatory adjustments that may address certain patient conditions and/or the effectiveness of ventilatory treatment. Specifically, clinicians may not readily detect or recognize the presence of double triggering during ventilation. According to embodiments, a ventilator may be configured to monitor and evaluate diverse ventilatory parameters to detect double triggering and may issue notifications and recommendations suitable for a patient to the clinician when double triggering is implicated. The suitable notifications and recommendations may further be provided in a hierarchical format. | 05-31-2012 |
| 20120136261 | Systems and methods for calibrating physiological signals with multiple techniques - Systems and methods are disclosed herein for calibrating the calculation of physiological parameters. Two or more calibration techniques may be used to determine a relationship between physiological measurements and a desired physiological parameter, such as a relationship between differential pulse transit time (DPTT) and blood pressure. Different calibration techniques may be used in a serial fashion, one after the other, or in a parallel fashion, with different weights accorded to each calibration technique. When physiological or other changes occur, the calibration data may be stored for later use and new calibration data may be generated. | 05-31-2012 |
| 20120136257 | SNR Through Ambient Light Cancellation - Systems, methods, and devices for improved patient monitor signal processing with higher signal-to-noise ratio (SNR) are provided. In accordance with an embodiment, an electronic patient monitor may include drive circuitry, a current-to-voltage converter, and feedback circuitry. The drive circuitry may drive an emitter of a medical sensor with dark periods during which the emitter does not emit light, and the current-to-voltage converter may receive and amplify a photocurrent signal from a detector of the sensor. The feedback circuitry may provide a feedback signal to the current-to-voltage converter. The feedback signal, based at least in part on the output of the current-to-voltage converter during the dark periods, may cause the current-to-voltage converter to substantially exclude an ambient light component of the photocurrent. As a result, the current-to-voltage converter may employ a higher transimpedance without distorting the output voltage signal due to oversaturation, and thus may achieve a higher SNR. | 05-31-2012 |
| 20120136227 | ORGANIC LIGHT EMITTING DIODES AND PHOTODETECTORS - A system and method for determining physiological parameters of a patient based on light transmitted through the patient. The light may be transmitted via a broadband light source and received by a detector. The light may be selectively detected at a detector. Based on material characteristic of the detector, specific wavelengths of light are detected by the detector for use in monitoring the physiological parameters of the patient. | 05-31-2012 |
| 20120136226 | Pulse Oximetry For Determining Heart Rate Variability As A Measure Of Susceptibility To Stress - Embodiments of the present disclosure relate to systems and methods for determining a physiologic parameter of a patient. Specifically, embodiments provided herein include methods and systems for determining or predicting the presence and/or severity of stress in a patient based on heart rate variability. The information relating to stress may be used as part of a broader physiological assessment. | 05-31-2012 |
| 20120136223 | MULTIPLE SENSOR ASSEMBLIES AND CABLES IN A SINGLE SENSOR BODY - A multisystem sensor is disclosed that includes a first sensor subsystem and a second sensor subsystem. The multisystem sensor includes a sensor body having both sensor subsystems. The first sensor subsystem may monitor a first physiological characteristic and the second sensor subsystem may monitor a second physiological characteristic. The sensor body may include an isolating portion configured to isolate the first sensor subsystem and the second sensor subsystem. The sensor body and/or isolating portion may include refractive components and/or filters to prevent interference between sensor subsystems. | 05-31-2012 |
| 20120136222 | Methods And Systems For Monitoring A Ventilator Patient With A Capnograph - This disclosure describes systems and methods for monitoring the ventilation of a patient being ventilated by a medical ventilator. The disclosure describes a novel approach of displaying integrated ventilator information with capnography data. The disclosure further describes a novel approach for removing cardiogenic artifacts. | 05-31-2012 |
| 20120133519 | Ventilator-Initiated Prompt Regarding Detection Of Double Triggering During A Volume-Control Breath Type - This disclosure describes systems and methods for monitoring and evaluating ventilatory parameters, analyzing those parameters and providing useful notifications and recommendations to clinicians. That is, modern ventilators monitor, evaluate, and graphically represent multiple ventilatory parameters. However, many clinicians may not easily recognize data patterns and correlations indicative of certain patient conditions, changes in patient condition, and/or effectiveness of ventilatory treatment. Further, clinicians may not readily determine appropriate ventilatory adjustments that may address certain patient conditions and/or the effectiveness of ventilatory treatment. Specifically, clinicians may not readily detect or recognize the presence of double triggering during ventilation. According to embodiments, a ventilator may be configured to monitor and evaluate diverse ventilatory parameters to detect double triggering and may issue notifications and recommendations suitable for a patient to the clinician when double triggering is implicated. The suitable notifications and recommendations may further be provided in a hierarchical format. | 05-31-2012 |
| 20120125346 | ENDOTRACHEAL CUFF AND TECHNIQUE FOR USING THE SAME - An inflatable balloon cuff with a water-swellable coating may be adapted to seal a patient's trachea when associated with an endotracheal tube. The water-swellable coating may enhance a cuffs mechanical pressure seal. The water-swellable coating may be loosely adhered or not adhered to the cuff in order to allow the coating to flow into and seal any leak paths that may form when the cuff is inflated in a patient's trachea. | 05-24-2012 |
| 20120123282 | METHOD AND APPARATUS FOR DETECTION OF VENOUS PULSATION - Methods and systems for detecting venous pulsation are provided. In one embodiment, a metric of the pulse shape of one or more plethysmographic signals is derived and the presence of venous pulsation is detected based on the metric of pulse shape. Examples, of metrics of pulse shape include a skew metric and a ratio of a minima-to-maxima time over a pulse period interval. In an exemplary embodiment, the presence of venous pulsation is detected based on a metric of the pulse shape of one or more plethysmographic signals and on a phase comparison of the plethysmographic signals. | 05-17-2012 |
| 20120118294 | TRACHEAL TUBE WITH REINFORCED PROXIMAL EXTENSION - A tracheal tube includes a proximal extension between a flange member and a connector. The extension may allow for easier access to the connector. The extension is reinforced to limit bending and kinking. Reinforcement may be accomplished by a helical element that is embedded in the extension, such as between an inner cannula and an outer cover. The outer cover may be molded with a connector after placement of the reinforcing member. | 05-17-2012 |
| 20120116235 | SYSTEMS AND METHODS FOR PRODUCING AUDIBLE INDICATORS THAT ARE REPRESENTATIVE OF MEASURED BLOOD PRESSURE - Systems and methods are disclosed for producing audible indicators that are based on a subject's measured blood pressure. Audible properties of the indicators are processed to represent blood pressure. For example, the duration or volume of the audible indicators may be varied based on the values of the subject's blood pressure. The audible indicators may further be varied based on the subject's blood pressure's deviation from a normal blood pressure and/or previously calculated blood pressure. For example, the audible indicators may be indicative of changes in the subject's blood pressure over time. The audible indicators representing blood pressure may be synchronized with other audible indicators that represent other physiological parameters of the subject, such as, the subject's heart rate. | 05-10-2012 |
| 20120113411 | OPTICAL FIBER SENSORS - The present disclosure describes the use and the manufacture of a fiber optic sensor having an angled terminal portion of a fiber optic element. In one embodiment, an optical fiber is cut at an angle and a portion of the fiber's jacket is removed near the angle so that the cladding is exposed. Light may then travel through the fiber, reflect off the angled portion, and emit through the exposed cladding into a patient. Light may also be collected from the patient using the same or a different fiber optic element having an angled terminal portion. In one embodiment, the emitted light can then be collected and analyzed to derive various physiological parameters. In certain embodiments, the fiber optic sensor may be used in environments where metallic and/or electronic sensors are not suitable. | 05-10-2012 |
| 20120108924 | SYSTEM AND METHOD FOR DETECTION OF SKIN WOUNDS AND COMPARTMENT SYNDROMES - A system configured to provide feedback regarding fluid parameters in the skin and/or compartments of an individual to facilitate early diagnosis of skin wounds and compartment syndromes. | 05-03-2012 |
| 20120108912 | METHOD AND SYSTEM FOR DETERMINING WHEN TO REPOSITION A PHYSIOLOGICAL SENSOR - A sensor may be placed on a patient to obtain physiological measurements. The application of the sensor on the patient may start a timer set to run for a given time interval. If the sensor is repositioned before the interval is expired, the timer is reset. If the time expires without the sensor being repositioned, a caregiver is prompted to reposition the sensor. | 05-03-2012 |
| 20120103341 | TRACHEAL TUBE WITH CONNECTOR INSERT - A tracheal tube assembly includes a connector body, a cannula extending from the connector body, and an insert that provides rigidity to the connector body and retains the cannula in the connector body. The insert has a proximal surface having a first outside diameter substantially the same size as a second outside diameter of the connector body. The cannula has a tapered upper end that fits between conforming tapered sections of the connector body inner surface and the insert. The insert may include features to prevent rotation of the cannula as well as rotation of the insert in the connector body. Features of the insert and connector body may also interface to mechanically retain the insert in the connector body. A fastening component may be provided to aid in the fastening of the insert and cannula to the connector body. Different sizes of cannula may be accommodated by different inserts, while using the same or different connector bodies. | 05-03-2012 |
| 20120098646 | PHYSIOLOGICAL SENSOR SYSTEM WITH AUTOMATIC AUTHENTICATION AND VALIDATION BY MEANS OF A RADIO FREQUENCY IDENTIFICATION PROTOCOL WITH AN INTEGRATED RFID INTERROGATOR SYSTEM - This invention relates to a physiological sensor which acquires pre-programmed data from an electrode or an electrode array using Radio Frequency Identification (RFID) technology. The source of the sensor may be authenticated by means of a wireless interface between an RFID transponder affixed to the electrode array, and an RFID interrogator embedded in the patient interface cable. The criteria for use are then verified to ensure that they are met by the electrode array before beginning signal acquisition. If the criteria are not met, a message is provided to the user via the monitor. | 04-26-2012 |
| 20120096381 | Ventilator-Initiated Prompt In Response To Proposed Setting Adjustment - This disclosure describes systems and methods for issuing a prompt in response to one or more proposed settings adjustments. Specifically, the prompt may include a projected impact of the one or more proposed settings adjustments on patient condition and/or patient treatment. The prompt may further provide an impact level and/or an alert associated with the projected impact. According to embodiments, one or more recommendations for alternative settings adjustments may be provided on the prompt or on an extension of the prompt. According to embodiments, a clinician may scroll through a plurality of potential settings adjustments until a desired impact level is displayed on the prompt (e.g., a positive impact level). According to still other embodiments, a plurality of proposed settings adjustments may be received. In this case, the projected impact displayed on the prompt may represent a combined projected impact of the plurality of proposed settings adjustments received. | 04-19-2012 |
| 20120090611 | Systems And Methods For Controlling An Amount Of Oxygen In Blood Of A Ventilator Patient - This disclosure describes systems and methods for controlling blood oxygen saturation (SpO | 04-19-2012 |
| 20120071742 | REMANUFACTURING A STACKED ADHESIVE MEDICAL SENSOR - Remanufactured medical sensors and methods for remanufacturing used stacked adhesive medical sensors are provided. Such a remanufactured sensor may include certain components from a used stacked adhesive medical sensor and certain new components. For example, a remanufactured medical sensor may include an exterior foam layer, a mask layer, an emitter and a detector, a semi-rigid optical mount to hold the emitter and the detector in place, optical windows, and an interior foam layer. At least the emitter and the detector may derive from the used stacked adhesive medical sensor, while at least one of the exterior foam layer, the mask layer, the semi-rigid optical mount, the optical windows, or the interior foam layer may be new. | 03-22-2012 |
| 20120071739 | WAVELENGTH SWITCHING FOR PULSE OXIMETRY - The present disclosure describes techniques that may provide more accurate estimates of arterial oxygen saturation using pulse oximetry by switching between a wavelength spectrum of at least a first and a second light source so that the arterial oxygen saturation estimates at low (e.g., in the range below 75%), medium (e.g., greater than or equal to 75% and less than or equal to 84%), and high (e.g., greater than 84% range) arterial oxygen saturation values are more accurately calculated. In one embodiment, light emitted from a near 660 nm and a near 900 nm emitter pair may be used when the arterial oxygen saturation range is high. In another embodiment, light emitted from a near 730 nm and a near 900 nm emitter pair may be used when the arterial oxygen saturation range is low. In yet another embodiment, light emitted from both a near 660 nm-900 nm emitter pair and light emitted from a near 730 nm-900 nm emitter pair may be used when the arterial oxygen saturation range is in the middle range. Priming techniques may also be used to reduce or eliminate start up delays of certain oximetry system components. | 03-22-2012 |
| 20120071729 | Medical Ventilator With Integrated Oximeter Data - This disclosure describes systems and methods for managing the ventilation of a patient being ventilated by a medical ventilator. The disclosure describes a novel approach of displaying ventilator information integrated with oximeter information. The disclosure further describes a novel approach of alarming based on the integration of ventilator information with oximeter information. | 03-22-2012 |
| 20120035443 | MEDICAL SENSOR FOR REDUCING MOTION ARTIFACTS AND TECHNIQUE FOR USING THE SAME - A sensor for pulse oximetry or other applications utilizing spectrophotometry may be adapted to reduce motion artifacts by fixing the optical distance between an emitter and detector. A flexible sensor is provided with a stiffening member to hold the emitter and detector of the sensor in a relatively fixed position when applied to a patient. Further, an annular or partially annular sensor is adapted to hold an emitter and detector of the sensor in a relatively fixed position when applied to a patient. A clip-style sensor is provided with a spacer that controls the distance between the emitter and detector. | 02-09-2012 |
| 20120030611 | Display Of Respiratory Data Graphs On A Ventilator Graphical User Interface - The disclosure describes improved systems and methods for configuring the layout of a graphical display in a ventilatory system. Specifically, the present methods provide a user interface for configuring one or more layout categories associated with data on the graphical display. Upon selection of a layout category, a clinician is provided with a preview of the layout of the layout category. The preview consists of one or more parameter positions. Each parameter position is associated with a parameter. The clinician is also provided with a listing of possible parameters. The parameter positions in the preview and the possible parameters in the listing are selectable elements. Once a parameter position is selected, a possible parameter can be chosen to replace the parameter associated with the selected parameter position. If this replacement is acceptable to the clinician, the clinician can access an accept button to implement the replacement in the graphical display. | 02-02-2012 |
| 20120029829 | Light Focusing Continuous Wave Photoacoustic Spectroscopy And Its Applications To Patient Monitoring - The present disclosure describes systems and methods that use spatial modulation to focus continuous wave light into a localized region of interest such as an individual blood vessel. In certain embodiments, intensity modulation techniques, such as linear frequency modulation, are used in conjunction with spatial modulation to achieve more precise measurements through otherwise scattering medium. The focused beam of continuous wave light is capable of penetrating several centimeters of tissue to deliver measurements and images associated with individual blood vessels and other discrete vascular components. | 02-02-2012 |
| 20120029363 | SYSTEMS AND METHODS FOR IMPROVED COMPUTATION OF DIFFERENTIAL PULSE TRANSIT TIME FROM PHOTOPLETHYSMOGRAPH SIGNALS - Systems and methods for processing photoplethysmograph (PPG) signals to determine a differential pulse transit time (DPTT) are disclosed. Sensors may be used to obtain first and second PPG signals from a subject. The sensors may be placed at different locations on the subject's body. A first algorithm may be performed on the PPG signals or on signals derived from them to obtain a DPTT. A corresponding confidence measure may be determined and if the confidence measure falls within a first numerical range, the calculated DPTT may be used. On the other hand, if the confidence measure falls within a second numerical range, an alternative algorithm may be performed on the PPG signals or on signals derived from them and the DPTT obtained using the alternative algorithm may be used. The DPTT may be used to perform continuous or periodic measurements of blood pressure. | 02-02-2012 |
| 20120029330 | Cable cross talk suppression - Systems, methods, and devices are provided for suppressing cross-talk noise due to capacitive and/or inductive coupling in a medical sensor signal. For example, an embodiment of a patient monitor may include driving circuitry, an amplifier, and transient current discharge circuitry. When the driving circuitry drives an emitter to emit light into a patient, a detector may detect a portion of the light that passes through the patient, generating a detector signal. Cross-talk between the emitter driving signals and the detector signal may generate interference in the form of a transient current in the detector signal. Before the amplifier receives the detector signal, transient current discharge circuitry may discharge the transient current. | 02-02-2012 |
| 20120029320 | SYSTEMS AND METHODS FOR PROCESSING MULTIPLE PHYSIOLOGICAL SIGNALS - Systems and methods are provided for patient monitors which apply different sets of signal processing operations to signals to identify multiple fiducials in physiological signals. PPG signals measured at two sensor sites may be processed with a first set of processing operations and analyzed to identify fiducials that allow the calculation of a diastolic DPTT. These PPG signals may then be processed with a different set of processing operations and the results analyzed to identify fiducials that allow the calculation of a systolic DPTT. | 02-02-2012 |
| 20120029317 | Methods For Validating Patient Identity - This disclosure describes systems and methods for monitoring a patient on a ventilator-oximeter system. The disclosure describes a novel approach determining if the oximeter and the ventilator are attached to the same patient and if not providing a warning. | 02-02-2012 |
| 20120029304 | CONFIGURABLE PATIENT MONITORING SYSTEM - A patient monitoring system is provided which includes a platform and one or more monitoring modules. Monitoring modules include parameter modules for monitoring physiological activity of a patient, and utility modules for providing additional functionality to the patient monitoring system. A platform and one or more monitoring modules may be coupled to form a communications bus, allowing communication between any of the plurality of coupled devices. Updates such as software upgrades may be provided by a monitoring module to a platform or other monitoring module to update functionality. | 02-02-2012 |
| 20120029301 | Adaptive Alarm System And Method - An adaptive-alarm system and its uses in the context of medical devices, such as patient monitors, are described. In one embodiment, the monitor has a processor configured to receive and analyze an input relating to ambient sounds. The monitor may generate an alarm signal in response to physiological data that meets a defined requirement, such as a physiological alarm condition. The alarm signal that is generated by the monitor is substantially free of masking by the ambient sounds. | 02-02-2012 |
| 20120024293 | MEDICAL DEVICE TUBE HAVING SUCTION LUMEN AND AN ASSOCIATED SUCTIONING SYSTEM - Various embodiments of a tracheal tube having a suction lumen are provided. For example, the suction lumen may be associated with two spaced apart pressure transducers, whereby a pressure drop between the transducers indicates that the suction lumen is free of blockages and a characteristic lack of pressure drop and/or particular pressure curve is indicative of a blockage. In addition, embodiments may include a tracheal tube with sensors configured to sense a buildup of secretions. The sensors may be located proximate to an opening in the suction lumen. In other embodiments, a blockage-clearing system for a suction lumen may be provided that blows air into the suction lumen to clear blockages. In particular, in certain embodiments, the blockage-clearing system may operate to create its own pressurized air source by utilizing the pressure change created in the suction line by a blockage. | 02-02-2012 |
| 20120024292 | DUAL-LUMEN TRACHEAL TUBE WITH SHAPED LUMEN DIVIDER - Various embodiments of a tracheal tube having a shaped divider disposed therein for separation of a tracheal tube into multiple ventilation lumens are provided. In some embodiments, the divider divides a tracheal ventilation lumen from a bronchial ventilation lumen. In some embodiments, the shaped divider provides an irregular inner diameter that allows a relatively bulky device to be inserted into one or both lumens. | 02-02-2012 |
| 20120000471 | TRACHEAL TUBES WITH IMPROVED SECRETION REMOVAL SYSTEMS - Various embodiments of a tracheal tube having a tubular body with an open distal end and a tube wall with a variable thickness are provided. The tube wall may include a thickened section comprising a void. The tracheal tube may also include an offset ventilation lumen disposed in the tubular body and adapted to facilitate airflow to and from a patient. Embodiments of the tracheal tube may also include a suction lumen disposed in the thickened section of the tube wall and terminating in a port opening into the void for removal of secretions from the patient's trachea. | 01-05-2012 |
| 20120000470 | Ventilator-Initiated Prompt Regarding Auto-PEEP Detection During Pressure Ventilation - This disclosure describes systems and methods for monitoring and evaluating ventilatory parameters, analyzing ventilatory data associated with those parameters, and providing useful notifications and/or recommendations to clinicians. Modern ventilators monitor, evaluate, and graphically represent a myriad of ventilatory parameters. However, many clinicians may not easily identify or recognize data patterns and correlations indicative of certain patient conditions, changes in patient condition, and/or effectiveness of ventilatory treatment. Further, clinicians may not readily determine appropriate ventilatory adjustments that may address certain patient conditions and/or the effectiveness of ventilatory treatment. Specifically, clinicians may not readily detect or recognize the presence of Auto-PEEP during various types of pressure ventilation. According to embodiments, a ventilator may be configured to monitor and evaluate diverse ventilatory parameters to detect Auto-PEEP and may issue suitable notifications and recommendations to the clinician when Auto-PEEP is implicated. The suitable notifications and recommendations may further be provided in a hierarchical format. | 01-05-2012 |
| 20120000469 | Ventilator-Initiated Prompt Regarding Auto-PEEP Detection During Pressure Ventilation Of Patient Exhibiting Obstructive Component - This disclosure describes systems and methods for monitoring and evaluating ventilatory parameters, analyzing ventilatory data associated with those parameters, and providing useful notifications and/or recommendations to clinicians. Modern ventilators monitor, evaluate, and graphically represent a myriad of ventilatory parameters. However, many clinicians may not easily identify or recognize data patterns and correlations indicative of certain patient conditions, changes in patient condition, and/or effectiveness of ventilatory treatment. Further, clinicians may not readily determine appropriate ventilatory adjustments that may address certain patient conditions and/or the effectiveness of ventilatory treatment. Specifically, clinicians may not readily detect or recognize the presence of Auto-PEEP during various types of pressure ventilation of a patient exhibiting an obstructive component. According to embodiments, a ventilator may be configured to monitor and evaluate diverse ventilatory parameters to detect Auto-PEEP and may issue suitable notifications and recommendations to the clinician when Auto-PEEP is implicated. | 01-05-2012 |
| 20120000468 | Ventilator-Initiated Prompt Regarding Auto-PEEP Detection During Volume Ventilation Of Non-Triggering Patient Exhibiting Obstructive Component - This disclosure describes systems and methods for monitoring and evaluating ventilatory parameters, analyzing those parameters and providing useful notifications and recommendations to clinicians. That is, modern ventilators monitor, evaluate, and graphically represent multiple ventilatory parameters. However, many clinicians may not easily recognize data patterns and correlations indicative of certain patient conditions, changes in patient condition, and/or effectiveness of ventilatory treatment. Further, clinicians may not readily determine appropriate ventilatory adjustments that may address certain patient conditions and/or the effectiveness of ventilatory treatment. Specifically, clinicians may not readily detect or recognize the presence of Auto-PEEP during volume ventilation of a non-triggering patient exhibiting an obstructive component. According to embodiments, a ventilator may be configured to monitor and evaluate diverse ventilatory parameters to detect Auto-PEEP and may issue notifications and recommendations suitable for a non-triggering patient to the clinician when Auto-PEEP is implicated. The suitable notifications and recommendations may further be provided in a hierarchical format. | 01-05-2012 |
| 20120000467 | Ventilator-Initiated Prompt Regarding Auto-PEEP Detection During Volume Ventilation Of Triggering Patient Exhibiting Obstructive Component - This disclosure describes systems and methods for monitoring and evaluating ventilatory parameters, analyzing those parameters and providing useful notifications and recommendations to clinicians. That is, modern ventilators monitor, evaluate, and graphically represent multiple ventilatory parameters. However, many clinicians may not easily recognize data patterns and correlations indicative of certain patient conditions, changes in patient condition, and/or effectiveness of ventilatory treatment. Further, clinicians may not readily determine appropriate ventilatory adjustments that may address certain patient conditions and/or the effectiveness of ventilatory treatment. Specifically, clinicians may not readily detect or recognize the presence of Auto-PEEP during volume ventilation of a triggering patient exhibiting an obstructive component. According to embodiments, a ventilator may be configured to monitor and evaluate diverse ventilatory parameters to detect Auto-PEEP and may issue notifications and recommendations suitable for a triggering patient to the clinician when Auto-PEEP is implicated. The suitable notifications and recommendations may further be provided in a hierarchical format. | 01-05-2012 |
| 20110315147 | TRACHEAL TUBE WITH MULTIFUNCTIONAL LUMEN - Various embodiments of a tracheal tube having a multifunctional lumen disposed in a tracheal tube wall are provided. Provided tracheal tubes include a ventilation lumen, through which bidirectional airflow may be established to and from a patient during operation, as well as a multifunctional lumen adapted to receive a variety of interchangeable medical devices. Embodiments of the provided tracheal tubes may provide for insertion or removal of a medical device from the multifunctional lumen without extubation of the tracheal tube from a patient. | 12-29-2011 |
| 20110301852 | Systems And Methods For Estimating Stability Of A Continuous Wavelet Transform - Methods and systems are disclosed for analyzing a physiological signal obtained from a patient. The physiological signal is transformed using a continuous wavelet transform to generate a transformed signal, and a scalogram is generated from the transformed signal. A region of relative high energy in the scalogram is identified, and dimension information regarding the region is determined. The dimension information is processed to determine physiological information about the patient and confidence information regarding the signal. A storage device coupled to the electronic processing equipment may be used to store the physiological and confidence information. | 12-08-2011 |
| 20110295094 | Retinopathy Of Prematurity Determination And Alarm System - Embodiments of the present disclosure relate to determining a likelihood of possible retinopathy of prematurity and alerting a caregiver of such likelihood. According to certain embodiments, an apparatus for displaying an indication of a risk of retinopathy of prematurity in a patient may include a processing unit. The processing unit is configured to determine whether an oxygen saturation history of the patient places the patient at risk of developing retinopathy of prematurity. The apparatus may also include a display unit configured to present an indication of a risk of prematurity in the patient when the processing unit determines that the oxygen saturation history of the patient places the patient at risk of developing retinopathy of prematurity, the indication comprising at least one of a number associated with the risk, an audible alarm, or a visual alarm. | 12-01-2011 |
| 20110295093 | Retinopathy Of Prematurity Determination And Alarm System - Embodiments of the present disclosure relate to determining a likelihood of possible retinopathy of prematurity and alerting a caregiver of such likelihood. According to certain embodiments, an apparatus for determining a risk of retinopathy of prematurity in a patient may include a processing unit. The processing unit is configured to determine whether an oxygen saturation level of the patient extends beyond an oxygen saturation threshold, determine an extent that the oxygen saturation level of the patient extends beyond the oxygen saturation threshold, and trigger an alarm when the extent that the oxygen saturation level of the patient extends beyond the oxygen saturation threshold exceeds a threshold at which the patient may be at risk of developing retinopathy of prematurity. The apparatus may also include a display unit configured to present the alarm in response to the trigger from the processing unit. | 12-01-2011 |
| 20110290254 | TRACHEAL TUBE WITH CONNECTOR INSERT - A tracheal tube assembly includes a connector body, a cannula extending from the connector body, and an insert that provides rigidity to the connector body and retains the cannula in the connector body. The cannula has a tapered upper end that fits between conforming tapered sections of the connector body inner surface and the insert. The insert may include features to prevent rotation of the cannula as well as rotation of the insert in the connector body. Features of the insert and connector body may also interface to mechanically retain the insert in the connector body. Different sizes of cannula may be accommodated by different inserts, while using the same or different connector bodies. | 12-01-2011 |
| 20110273299 | Ventilator-Initiated Prompt Regarding Auto-PEEP Detection During Volume Ventilation Of Non-Triggering Patient - This disclosure describes systems and methods for monitoring and evaluating ventilatory parameters, analyzing those parameters and providing useful notifications and recommendations to clinicians. That is, modern ventilators monitor, evaluate, and graphically represent a myriad of ventilatory parameters. However, many clinicians may not easily identify or recognize data patterns and correlations indicative of certain patient conditions, changes in patient condition, and/or effectiveness of ventilatory treatment. Further, clinicians may not readily determine appropriate ventilatory adjustments that may address certain patient conditions and/or the effectiveness of ventilatory treatment. Specifically, clinicians may not readily detect or recognize the presence of Auto-PEEP during volume ventilation of a non-triggering patient. According to embodiments, a ventilator may be configured to monitor and evaluate diverse ventilatory parameters to detect Auto-PEEP and may issue suitable notifications and recommendations to the clinician when Auto-PEEP is implicated. The suitable notifications and recommendations may further be provided in a hierarchical format. | 11-10-2011 |
| 20110271960 | Ventilator-Initiated Prompt Regarding Auto-PEEP Detection During Volume Ventilation Of Triggering Patient - This disclosure describes systems and methods for monitoring and evaluating ventilatory parameters, analyzing those parameters and providing useful notifications and recommendations to clinicians. That is, modern ventilators monitor, evaluate, and graphically represent a myriad of ventilatory parameters. However, many clinicians may not easily identify or recognize data patterns and correlations indicative of certain patient conditions, changes in patient condition, and/or effectiveness of ventilatory treatment. Further, clinicians may not readily determine appropriate ventilatory adjustments that may address certain patient conditions and/or the effectiveness of ventilatory treatment. Specifically, clinicians may not readily detect or recognize the presence of Auto-PEEP during volume ventilation of a triggering patient. According to embodiments, a ventilator may be configured to monitor and evaluate diverse ventilatory parameters to detect Auto-PEEP and may issue suitable notifications and recommendations to the clinician when Auto-PEEP is implicated. The suitable notifications and recommendations may further be provided in a hierarchical format. | 11-10-2011 |
| 20110270904 | Systems And Methods For Estimating A Wavelet Transform With A Goertzel Technique - Systems and methods for processing a signal by estimating a wavelet transform of the signal using at least one scale that is associated with at least one data sample are provided. The systems and methods employ a Goertzel technique to estimate the wavelet transform without using any convolution operations. | 11-03-2011 |
| 20110270058 | Method For Respiration Rate And Blood Pressure Alarm Management - Embodiments of the present disclosure relate to display features that facilitate observation of monitored physiological data. According to certain embodiments, a monitoring system may include a monitor capable of receiving data related to the physiological parameters and storing data related to the parameters. The monitor may include a microprocessor capable of determining a respiration rate baseline from the data and establishing an alarm sensitivity for respiration rate based on the respiration rate baseline. The alarm sensitivity may comprise a first tier, a second tier, and a third tier. Each tier may correspond to a specific respiratory rate range and the alarm sensitivity may be selected based on which specific respiratory rate range encompasses the respiration rate baseline. Further, in certain embodiments a blood pressure baseline may be determined and an alarm sensitivity established based on the blood pressure baseline. | 11-03-2011 |
| 20110270043 | AIR MOVEMENT ENERGY HARVESTING WITH WIRELESS SENSORS - A system and method for generating power when one or more motion sensitive structures are moved via airflow. The system may include one or more sensing components which, acting alone or in combination, are capable of generating data related to one or more physiological parameters. The system may also include wireless communication circuitry capable of wirelessly transmitting the data related to the one or more physiological parameters. Furthermore, at least one of the one or more sensing components or the wireless communication circuitry may be at least partially powered, directly or indirectly, by the one or more motion sensitive structures when acted upon by airflow. | 11-03-2011 |
| 20110265799 | TRACHEAL TUBE WITH DIVIDING MEMBRANE - Various embodiments of a tracheal tube having a flexible membrane disposed therein for separation of a ventilation lumen of the tracheal tube into multiple channels are provided. The flexible membrane is configured to divide a main ventilation lumen of the tracheal tube into an inspiration channel and an expiration channel. In some embodiments, a volume of the inspiration channel is substantially equal to a volume of the expiration channel. | 11-03-2011 |
| 20110265798 | MEDICAL DEVICE TUBE HAVING SPACED LUMENS AND AN ASSOCIATED PORTED ADAPTER - Various embodiments of a tracheal tube having spaced lumens and an associated ported adapter are provided. The lumens of the tracheal tube are spaced around the circumference of the tracheal tube to facilitate evacuation (e.g., suctioning and blowing) and other applications at various locations around the circumference of the tracheal tube. The ported adapter includes lumen extensions that may be inserted into the lumens of the tracheal tube, thereby forming a connection between the ported adapter and the tracheal tube. More specifically, hollow ports extending through the lumen extensions and the body of the ported adapter facilitate connection of the lumens of the tracheal tube with external equipment such as, for example, evacuation equipment for suctioning and blowing into and out of the lumens of the tracheal tube. | 11-03-2011 |
| 20110265797 | EXTENDABLE TRACHEAL TUBE - The present disclosure describes systems and methods that utilize an extendable tracheal tube system. The extendable tracheal tube system includes an extendable tracheal tube having a distal end portion and a proximal end portion. The proximal end portion and the distal end portion of the extendable tracheal tube are capable of moving axially relative to each other. An obturator is also provided that is capable of aiding in the intubation and/or extubation of the extendable tracheal tube. The use of the extendable tracheal tube system and methods enables the secure attachment of the extendable tracheal tube to a patient airway while allowing for certain movements of the patient, such as neck and head movements. | 11-03-2011 |
| 20110265024 | Ventilation System With A Two-Point Perspective View - The disclosure describes a novel approach for displaying information on a ventilator system. The disclosure describes a novel respiratory system including a primary display and system status display. Further, the disclosure describes a novel method for displaying ventilator information. | 10-27-2011 |
| 20110259333 | Ventilation System With System Status Display For Maintenance And Service Information - The disclosure describes a novel approach for displaying information on a ventilator system. The disclosure describes a novel respiratory system including a removable primary display and system status display. Further, the disclosure describes a novel method for displaying ventilator information and a novel method for controlling a ventilator system. | 10-27-2011 |
| 20110259332 | Ventilation System With System Status Display For Configuration And Program Information - The disclosure describes a novel approach for displaying information on a ventilation system. The disclosure describes a novel respiratory system including a removable primary display and system status display. Further, the disclosure describes a novel method for displaying ventilator information and a novel method for controlling a ventilation system. | 10-27-2011 |
| 20110259330 | SYSTEM AND METHOD FOR DETERMINING VENTILATOR LEAKAGE DURING STABLE PERIODS WITHIN A BREATH - This disclosure describes systems and methods for compensating for leaks in a ventilation system based on data obtained during periods within a breath in which the patient is neither inhaling nor exhaling. The methods and systems described herein more accurately and quickly identify changes in leakage. This information is then to estimate leakage later in the same breath or in subsequent breaths to calculate a more accurate estimate of instantaneous leakage based on current conditions. The estimated leakage is then used to compensate for the leak flow rates, reduce the patient's work of breathing and increase the patient's comfort (patient-ventilator breath phase transition synchrony). | 10-27-2011 |
| 20110249006 | VENTILATOR BREATH DISPLAY AND GRAPHIC INTERFACE - The invention is directed to a ventilation control system for controlling the ventilation of a patient. The ventilation control system utilizes a user-friendly user interface for the display of patient data and ventilator status. The user interface includes a graphic representation of a breath cycle that displays the breath cycle currently being ventilated, and is also responsive to changes in ventilation settings to assist the user in evaluation the effect of those changes on the ventilator strategy before the changes are implemented. | 10-13-2011 |
| 20110245709 | SYSTEM AND METHOD OF ASSESSING ANALGESIC ADEQUACY USING BIOPOTENTIAL VARIABILITY - The system and method for predicting and measuring a subject's analgesic state and analgesic adequacy. Biopotential signals are obtained from a subject through electrodes. A processor will compute a measure that is representative of the subject's sedative state and/or muscle activity. A metric representative of such measures is then determined. In the case where a measure is taken of both the subject's sedative state and muscle activity the two measures are combined into an index representative of the subject's analgesic state and analgesic adequacy. | 10-06-2011 |
| 20110245641 | Monitor With Multi-Position Base - According to various embodiments, a medical monitoring device includes a monitor component and a base component. The base component has one or more connectors on a facing of the base component. The monitor component is capable of rotating with respect to the base component. In various embodiments, the monitor component may be above the base component. | 10-06-2011 |
| 20110245640 | Films For Touchscreen Displays Of Medical Device Monitors - According to various embodiments, a medical device monitor includes a touchscreen and a film disposed on an external surface of the touchscreen. The film resists formation of visible fingerprints and resists growth of microorganisms. In various embodiments, one layer or more than one layer of the film may be disposed on the touchscreen. | 10-06-2011 |
| 20110245638 | THERMOELECTRIC ENERGY HARVESTING WITH WIRELESS SENSORS - A system and method for generating power from temperature differences across a thermoelectric energy harvester. The system may include one or more sensing components which, acting alone or in combination, are capable of generating data related to one or more physiological parameters. The system may also include wireless communication circuitry capable of wirelessly transmitting the data related to the one or more physiological parameters. Furthermore, at least one of the one or more sensing components or the wireless communication circuitry may be at least partially powered, directly or indirectly, by energy generated via the thermoelectric energy harvester. | 10-06-2011 |
| 20110245637 | AMBIENT LIGHT USE IN PHYSIOLOGICAL SENSORS - The present disclosure describes the harvesting and use of ambient light in spectrophotometric systems so as to increase the energy efficiency of the systems. In one embodiment, the collected ambient light is filtered and/or converted into discrete wavelengths of light that can then be used in spectrophotometric applications. In one embodiment, the emitted light can then be collected and analyzed to derive various physiological parameters. In certain embodiments, the ambient light may be used in place of light that is electrically generated. | 10-06-2011 |
| 20110245636 | Multi-Wavelength Photon Density Wave System Using An Optical Switch - Multi-wavelength photon density wave (PDW) medical systems, methods, and devices are provided. In one embodiment, a multi-wavelength system may include a sensor, a sensor cable, and a patient monitor. The sensor may have an emitter and a detector configured to pass a multi-wavelength PDW input signal into a patient and receive a resulting multi-wavelength PDW output signal. The sensor cable may couple to the sensor and include two optical cables for transmitting and receiving the multi-wavelength PDW signals. The patient monitor may couple to the sensor cable and generate several single-wavelength PDW input signals by modulating a plurality of light sources. The monitor may include an optical switch configured to time-division multiplex the several single-wavelength PDW wave input signals by selecting one of the single-wavelength PDW signals at one time to produce a multi-wavelength PDW signal which is output from the monitor to the sensor via the sensor cable. | 10-06-2011 |
| 20110245628 | Photoplethysmograph Filtering Using Empirical Mode Decomposition - Present embodiments relate to systems, methods, and devices for decomposing a physiological signal of a patient using empirical mode decomposition (EMD). In one embodiment, the EMD algorithm may involve identifying a frequency component, referred to as an intrinsic mode function, in the physiological signal. The physiological signal may be decomposed into one or more intrinsic mode functions through multiple iterations of the EMD algorithm. Each subsequent mode function may have a different frequency component of the original physiological signal input into the EMD algorithm. In some embodiments, each mode function may be further analyzed and/or processed to determine various physiological data corresponding to blood flow in the patient. | 10-06-2011 |
| 20110245622 | SYSTEM AND METHOD FOR DETERMINING SENSOR PLACEMENT - Systems, methods, and devices for determining whether a medical sensor has been properly applied to a patient are provided. In one embodiment, a patient monitor having such capabilities may include a medical sensor interface and data processing circuitry. The medical sensor interface may receive physiological data from a medical sensor applied to a patient. The data processing circuitry may be capable of being trained, using a learning-based algorithm, to determine whether the received physiological data indicates that the medical sensor has been properly applied to the patient. | 10-06-2011 |
| 20110242532 | BIODEGRADABLE FIBERS FOR SENSING - Biodegradable waveguides and their uses with devices, such as medical devices, are described. In one embodiment, an optically transmissive fibrous structure comprising biodegradable fiber waveguides may be disposed on a surface of a bandage. The bandage in combination with the optically transmissive fibrous structure may allow for simultaneously monitoring and covering an injured area of a patient. In one embodiment, the fiber waveguides may be provided as multi-channel/multi-core biodegradable fiber waveguides for transmitting light to and from a patient tissue. In some implementations, the bandage may include hydrogel-based biodegradable fiber waveguides that may deliver therapeutics to an injured patient area. | 10-06-2011 |
| 20110240033 | TRACHEAL TUBE WITH SCAFFOLDING-SUPPORTED WALL - Various embodiments of a medical device tube having scaffolding-supported inner and outer walls are provided. In particular, the medical device tube may include a plurality of struts extending from an inner wall to an outer wall of the medical device tube. In certain embodiments, each of the individual struts may connect to adjacent struts at the inner wall and the outer wall. As such, the plurality of struts may comprise a zigzag pattern circumferentially around the medical tube device. In other embodiments, the struts may extend radially from the inner wall to the outer wall of the medical tube device. Regardless, the area between the struts and the inner wall and/or the outer wall form a plurality of lumens, which may be used for suctioning, blowing, and various other applications of the medical device tube. | 10-06-2011 |
| 20110232648 | TRACHEOSTOMY TUBE WITH FILLETED FLANGE - Various embodiments of a tracheostomy tube having neck flanges with filleted ends are provided. In certain embodiments, the neck flange may include a fillet extending from a bottom surface of the neck flange to a tip of the neck flange. In addition, the filleted end may also be tapered from a top surface of the neck flange to the tip of the neck flange. The neck flange may also include several curved edges, such as curved edges from the tip of the neck flange to side surfaces of the neck flange, and a curved bottom surface from side surface to side surface of the neck flange. | 09-29-2011 |
| 20110230742 | TRACHEAL TUBE SENSOR DISPOSED ON PERMEABLE MEMBRANE - Various embodiments of an tracheal tube having a sensor coupled to a selectively permeable membrane are provided. In some embodiments, the membrane may be permeable to one or more blood gases and/or blood analytes. Certain embodiments of the endotracheal tube may be capable of deploying the sensor during intubation to sense one or more indicators of blood flow characteristics, such as a level of blood gases and/or blood analytes, in the respiratory tract. Embodiments of the present invention may include positioning of the sensor in a variety of suitable positions with respect to the permeable membrane, such as mounting the sensor to the underside of an inflatable permeable membrane. | 09-22-2011 |
| 20110218406 | Visual Display For Medical Monitor - The present disclosure describes a visual display for a medical monitor that may present a plurality of visualizations representative of physiological measurements. The visualizations may differ depending on whether the corresponding physiological parameter is within an expected range. The visualizations may include text, waveforms, images, video, and | 09-08-2011 |
| 20110213264 | SENSOR ON NON-SEALING PORTION OF TRACHEAL TUBE CUFF - Various embodiments of a tracheal tube having a sensor disposed on a non-sealing portion of a cuff are provided. Certain embodiments of the tracheal tube may be capable of deploying the sensor during intubation to sense one or more indicators of blood flow characteristics, such as a level of blood gases and/or blood analytes, in the respiratory tract. The sensor on the cuff may be configured to deploy upon inflation of the cuff and to return to its predeployment position upon deflation of the cuff. The sensor may be further adapted to abut the tracheal mucosa of a patient or not contact the tracheal wall at all during deployment. | 09-01-2011 |
| 20110213226 | MOTION COMPENSATION IN A SENSOR - A system and method for compensating for movement in a sensor. A sensor may include an emitter configured to transmit light, a detector configured to receive the transmitted light via a respective light path, and an accelerometer configured to measure a change in distance between the detector and the emitter. The sensor may transmit the measurements relating to the change in distance between the detector and the emitter to a pulse oximetry monitor. The pulse oximetry monitor may generate an attenuation factor corresponding to the change in the distance between the detector and the emitter that may be used to compensate for movement in a sensor when calculating physiological parameters of a patient. | 09-01-2011 |
| 20110213217 | ENERGY OPTIMIZED SENSING TECHNIQUES - The present disclosure describes an energy efficient wireless medical sensor that may be capable of optimizing battery life and increasing component life by selectively using only a subset of the sensors and sensor functionality included in the wireless medical sensor at any one time. One or more update factors may be used by the wireless sensor or an external patient monitor to derive a data collection modality, data collection rates, and update interval. The data collection modality, data collection rates, and update interval may be used to selectively gather sensing data in a manner that is more energy efficient. | 09-01-2011 |
| 20110213216 | ADAPTIVE WIRELESS BODY NETWORKS - Systems, methods, and devices for obtaining physiological measurements of a patient using an adaptive body network are provided. In one example, a wireless medical sensor may include physiological sensor circuitry, wireless transceiver circuitry, and control circuitry. The physiological sensor circuitry may be capable of obtaining a physiological measurement of a patient. The wireless transceiver circuitry may be capable of joining a wireless web that includes at least one other wireless medical sensor, through which the wireless transceiver circuitry may communicate the physiological measurement to an external device. The control circuitry may be capable of determining a data update rate at which to operate the physiological sensor or the wireless transceiver circuitry, or a combination thereof, based at least in part on a status of the patient. | 09-01-2011 |
| 20110213215 | Spontaneous Breathing Trial Manager - This disclosure describes systems and methods for conducting and terminating spontaneous breathing trials on patients receiving mechanical ventilation. The disclosure describes a novel spontaneous breathing trial manager for a medical ventilator with rapid initiation and continuous monitoring of a patient's tolerance of the spontaneous breathing trial and displaying of that tolerance as a function of time, which provides for bedside adjustment of the spontaneous breathing trial parameters and automatic termination of a spontaneous breathing trial based on a time interval expiration or poor patient tolerance of the SBT. | 09-01-2011 |
| 20110213214 | MECHANICALLY DEPLOYABLE TRACHEAL TUBE SENSOR - Various embodiments of a tracheal tube having a mechanically deployable sensor are provided. Certain embodiments of the tracheal tube may be capable of mechanically deploying the sensor during intubation to sense one or more indicators of blood flow characteristics, such as a level of blood gases and/or blood analytes, in the respiratory tract. The mechanically deployable sensor may be configured to abut the tracheal mucosa of a patient or not contact the tracheal wall at all during deployment. The sensor may be further adapted to remain in a recess disposed in the tracheal tube prior to deployment and exit the recess when acquiring measurements. | 09-01-2011 |
| 20110213208 | AMBIENT ELECTROMAGNETIC ENERGY HARVESTING WITH WIRELESS SENSORS - A system and method for generating power via harvesting of ambient electromagnetic signals. The system may include one or more sensing components which, acting alone or in combination, are capable of generating data related to one or more physiological parameters. The system may also include wireless communication circuitry capable of wirelessly transmitting the data related to the one or more physiological parameters. Furthermore, at least one of the one or more sensing components or the wireless communication circuitry may be at least partially powered, directly or indirectly, by energy generated via harvested electromagnetic signals. | 09-01-2011 |
| 20110209707 | Method And Apparatus For Oxygen Reprocessing Of Expiratory Gases In Mechanical Ventilation - This disclosure describes systems and methods for oxygen reprocessing of respiratory gases in mechanical ventilation. Embodiments described herein provide methods for oxygen reprocessing of expiratory gases wherein exhaled air is reprocessed using filters and adsorbers and delivered to a patient based on a clinically specified oxygen concentration. Embodiments described herein provide for graphical display of the oxygen concentration of the product gas of oxygen reprocessing. Embodiments described herein also disclose an automated ventilator functionality whereby oxygen concentration may be set by clinicians through a user interface display, or a “Oxygen Reprocessing Input” screen, from a general ventilation input screen. Embodiments described herein also disclose a ventilator system configured to undergo oxygen reprocessing of expiratory gases and to provide the product gas to the patient for inspiration. | 09-01-2011 |
| 20110209704 | Event-Based Delay Detection And Control Of Networked Systems In Medical Ventilation - This disclosure describes systems and methods for detecting and quantifying transmission delays associated with distributed sensing and monitoring functions within a ventilatory system. Specifically, the present methods and systems described herein define an event-based delay detection algorithm for determining transmission delays between distributed signal measurement and processing subsystems and a central platform that receives data from these subsystems. It is important to evaluate and quantify transmission delays because dyssynchrony in data communication may result in the misalignment of visualization and monitoring systems or instability in closed-loop control systems. Generally, embodiments described herein seek to quantify transmission delays by selecting a ventilator-based defining event as a temporal baseline and calculating the delay between the inception of the defining event and the receipt of data regarding the defining event from one or more distributed sensing devices. | 09-01-2011 |
| 20110209702 | Proportional Solenoid Valve For Low Molecular Weight Gas Mixtures - This disclosure describes systems and methods for ventilating a patient with a gas mixture containing a low molecular weight gas, such as helium. The disclosure describes a novel proportional solenoid valve for controlling a low molecular weight gas mixture in a medical ventilator with reduced leakage. | 09-01-2011 |
| 20110208010 | MOTION ENERGY HARVESTING WITH WIRELESS SENSORS - A system and method for generating power when one or more motion sensitive structures are moved. The system may include one or more sensing components which, acting alone or in combination, are capable of generating data related to one or more physiological parameters. The system may also include wireless communication circuitry capable of wirelessly transmitting the data related to the one or more physiological parameters. Furthermore, at least one of the one or more sensing components or the wireless communication circuitry may be at least partially powered, directly or indirectly, by the one or more motion sensitive structures. | 08-25-2011 |
| 20110197895 | TRACHEAL TUBE ADAPTOR AND FLARING JIG - The present disclosure describes systems and methods that utilize a tracheal tube adaptor system. The tracheal tube adaptor system includes a tracheal tube adaptor and/or a flaring jig. A proximal end of a tracheal tube may be flared and the tracheal tube adaptor may be coupled to the proximal end of the tracheal tube. The tracheal tube adaptor may be configured to easily attach and detach an end connector. The end connector may be used to couple a variety of medical devices such as a ventilator, a manual respirator, a nebulizer, a vaporizer, suctioning equipment, and so forth, to the tracheal tube. The use of the tracheal tube adaptor system and methods enables the rapid detachment and attachment of various end connectors, thus allowing the coupling of the tracheal tube to a variety of medical devices. | 08-18-2011 |
| 20110196251 | LEAK DETERMINATION IN A BREATHING ASSISTANCE SYSTEM - Systems and methods for estimating a leak flow in a breathing assistance system including a ventilation device connected to a patient are provided. Data of a flow waveform indicating the flow of gas between the ventilation device and the patient is accessed. A specific portion of the flow waveform is identified, and a linear regression of the identified portion of the flow waveform is performed to determine an estimated leak flow in the breathing assistance system. | 08-11-2011 |
| 20110190612 | Continous Light Emission Photoacoustic Spectroscopy - Methods and systems are provided for analyzing microcirculation using photoacoustic spectroscopy by emitting continuous light at one or more frequencies. A photoacoustic spectroscopy monitor may utilize a slow modulation method to vary the wavelength of light emitted, such that different absorbers may be measured in a patient's tissue. The photoacoustic spectroscopy sensor may emit a lower power continuous light towards a patient's tissue. The acoustic response generated by the tissue may be sensed by a thin polymer sensing film at the detector of the sensor. Based on the amplitude and phase information of the acoustic response sensed by the detector, the monitor may determine a concentration of an absorber, as well as a location of the absorbers, in the patient's tissue. | 08-04-2011 |
| 20110190600 | COMBINED PHYSIOLOGICAL SENSOR SYSTEMS AND METHODS - A combined physiological sensor and methods for detecting one or more physiological characteristics of a subject are provided. The combined sensor (e.g., a forehead sensor) may be used to detect and/or calculate at least one of a pulse blood oxygen saturation level, a regional blood oxygen saturation level, a respiration rate, blood pressure, an electrical physiological signal (EPS), a pulse transit time (PTT), body temperature associated with the subject, a depth of consciousness (DOC) measurement, any other suitable physiological parameter, and any suitable combination thereof. The combined sensor may include a variety of individual sensors, such as electrodes, optical detectors, optical emitters, temperature sensors, and/or other suitable sensors. The sensors may be advantageously positioned in accordance with a number of different geometries. The combined sensor may also be coupled to a monitoring device, which may receive and/or process one or more output signals from the individual sensors to display information about the medical condition of the subject. In addition, several techniques may be employed to prevent or limit interference between the individual sensors and their associated input and/or output signals. | 08-04-2011 |
| 20110190599 | System And Method For Diagnosing Sleep Apnea Based On Results Of Multiple Approaches To Sleep Apnea Identification - Various embodiments may provide methods and systems capable of evaluating physiological parameter data. The methods and systems may include a receiver capable of collecting a signal representative of a physiological status of a patient, a plurality of data analysis components, wherein each of the plurality of data analysis components is capable of generating a metric based on the signal, and an arbitrator communicatively coupled to each of the plurality of data analysis components and capable of generating a single metric from the metrics generated by the plurality of data analysis components. | 08-04-2011 |
| 20110178419 | TRACHEAL TUBE WITH PRESSURE MONITORING LUMEN AND METHOD FOR USING THE SAME - According to various embodiments, methods and systems for determining pressure in the lungs may employ tracheal pressure measurements. The tracheal pressure measurements may be obtained through a pressure monitoring lumen associated with a tracheal tube. Such systems may include a purging or flushing mechanism to keep the pressure monitoring lumen free of any obstructions. The flushing mechanism may utilize fluids delivered through the pressure monitoring lumen at a predetermined point in the breathing cycle and/or at a predetermined pressure relative to the respiratory gases. The resulting pressure measurements may be used to determine a more accurate estimate of lung pressure, which in turn may be used to control a ventilator and provide breathing assistance to a patient. | 07-21-2011 |
| 20110175728 | Nuisance Alarm Reduction Method For Therapeutic Parameters - This disclosure describes systems and methods for reducing nuisance alarms associated with monitoring non-physiological parameters in a ventilatory system. Non-physiological parameters may include, but are not limited to, parameters that are internally monitored by the ventilator based on pre-configured ranges dictated by the manufacturer, by an applicable protocol, or by the clinician. Embodiments described herein seek to mitigate nuisance alarms by basing alarm conditions, at least in part, on an integral threshold such that an alarm is not generated when a monitored parameter briefly falls outside an acceptable range by a slight degree, but such that an alarm is generated when a monitored parameter falls outside an acceptable range by a more significant magnitude and/or duration. | 07-21-2011 |
| 20110154241 | Visual Indication Of Alarms On A Ventilator Graphical User Interface - This disclosure describes systems and methods for displaying alarms to a clinician in a ventilatory system. Specifically, embodiments described herein seek to optimize the informative presentation of alarms on a ventilator interface. Embodiments of the present disclosure may provide one or more selection elements, each selection element indicating a ranked alarm event. The ranking of an alarm event may be determined by alarm level. If two alarm events are associated with the same alarm level, the ranking of the alarm events may be determined by parameter priority. Alarm event ranking is communicated by display in a hierarchical structure. When an alarm event ranking changes, the alarm event may shift up or down the hierarchical structure, depending on whether the ranking increased or decreased. | 06-23-2011 |
| 20110152652 | SYSTEM AND METHOD FOR PULSE RATE CALCULATION USING A SCHEME FOR ALTERNATE WEIGHTING - Embodiments of the present invention relate to a method for analyzing pulse data. In one embodiment, the method comprises receiving a signal containing data representing a plurality of pulses, the signal generated in response to detecting light scattered from blood perfused tissue. Further, one embodiment includes performing a pulse identification or qualification algorithm on at least a portion of the data, the pulse identification or qualification algorithm comprising at least one constant, and modifying the at least one constant based on results obtained from performing the pulse identification or qualification algorithm, wherein the results indicate that a designated number of rejected pulses has been reached. | 06-23-2011 |
| 20110146690 | SUPRAGLOTTIC FIXATION DEVICE FOR ENDOTRACHEAL TUBES - According to various embodiments, an endotracheal tube ventilating device with a sealing cuff includes an anchoring device. The anchoring device may be secured to the tube above the sealing cuff and extend outwardly from the tubular body. In addition, the anchoring device may be configured to be positioned completely within the hypopharynx of a patient, in contact with the piriform fossa and a laryngeal surface of the epiglottis without creating an airtight seal of the hypopharynx or the esophagus. | 06-23-2011 |
| 20110146689 | CUFFLESS TRACHEAL TUBE - According to various embodiments, a tracheal tube ventilating device includes a sealing portion near a distal end of the tube. The sealing portion has an electroactive polymer configured to undergo a clinically effective change in volume, thickness, or both upon application of an electrical potential. Such a change in volume, thickness, or both enables sealing of the device against an inner surface of a trachea while permitting the free passage of ventilating gas through the tube. In addition, at least one electrical conductor is coupled to the electroactive polymer and is configured to apply the electrical potential. | 06-23-2011 |
| 20110146683 | Sensor Model - The disclosure describes a novel approach of utilizing a model-based approach for estimating a parameter at the wye without utilizing a sensor at the wye in the circuit proximal to the patient. | 06-23-2011 |
| 20110146681 | Adaptive Flow Sensor Model - The disclosure describes a novel approach of estimating patient sensor data for sensors in sensor tubing or sensor lines during purging or autozeroing or any other situations under which no measurement is provided by the sensor. | 06-23-2011 |
| 20110144514 | Tracheal Tube with Pressure Monitoring Lumen and Method for Using the Same - According to various embodiments, methods and systems for determining pressure in the lungs may employ tracheal pressure measurements. The tracheal pressure measurements may be obtained through a pressure monitoring lumen associated with a tracheal tube. Such systems may include a purging or flushing mechanism to keep the pressure monitoring lumen free of any obstructions. The flushing mechanism may utilize respiratory gases diverted from the airway stream and regulated to flush the lumen at relatively low pressures. The resulting pressure measurements may be used to determine a more accurate estimate of lung pressure, which in turn may be used to control a ventilator and provide breathing assistance to a patient. | 06-16-2011 |
| 20110139159 | METHOD AND APPARATUS FOR PREVENTING OCCLUSION OF A TRACHEAL TUBE SUCTION LUMEN - There is provided a medical tube lumen plug, comprising: a plug, comprising: a body configured to be mechanically coupled to a lumen of a medical tube; and a protrusion configured to extend external to the medical tube, wherein the protrusion is configured to prevent occlusion of an aperture, wherein the aperture is configured to provide a pathway between the lumen and a region external to the medical tube. | 06-16-2011 |
| 20110139151 | TRACHEAL TUBE AND TUBE EXTENSION - The present disclosure describes systems that may extend the proximal length of a tracheal tube. A tracheal tube extension system may be provided that includes secure attachment features used to securely couple a tracheal tube to a tracheal tube extension. The tracheal tube extension may be attached to the proximal end of the tracheal tube and includes an upper end connector. The upper end connector may be used to couple the tracheal tube extension to a variety of medical devices such as a ventilator, a manual respirator, a nebulizer, a vaporizer, suctioning equipment, and so forth. The use of the tracheal tube extension enables an increase in working space in the area in front of the tracheal tube, thus allowing for the convenient and rapid access to the various connectors that may be coupled to the patient. | 06-16-2011 |
| 20110138323 | Visual Indication Of Alarms On A Ventilator Graphical User Interface - Embodiments described herein seek to optimize the informative presentation of alarms on a ventilator user interface. Embodiments may provide a first level of display that provides a summary of an alarm event and, upon selection, a second level of display that provides additional detailed information regarding the alarm event. Further embodiments may provide access, via hyperlink or otherwise, to settings and/or display screens for resetting the alarm, for reconfiguring alarm settings as appropriate, or for gathering additional information regarding the alarm event. For multiple simultaneous alarm events, a plurality of alarm messages may be prioritized for a clinician on a designated area of the user interface. Prioritization may be communicated via the presentation of various icons, alerts, text, or otherwise, on individual alarm messages. Additionally or alternatively, prioritization may be communicated based on the graphical placement of alarm messages relative to other alarm messages, for instance by displaying more serious alarm messages above other alarm messages, or by displaying more recent alarm messages above other alarm messages. Additionally or alternatively, alarm messages may be partially translucent, such that other displayed respiratory data may be simultaneously viewed with the alarm messages. | 06-09-2011 |
| 20110138315 | Quick Initiation Of Respiratory Support Via A Ventilator User Interface - This disclosure describes improved systems and methods for efficiently configuring respiratory settings and/or parameters in a ventilatory system. Specifically, the present methods and user interface provide an efficient and consistent means for configuring ventilatory settings for a new patient. Specifically, the ventilator may be preconfigured with appropriate parameter settings based on an institution-specific protocol, a physician-specific protocol, or other suitable protocol or specification. Indeed, the present disclosure provides an institution and/or physician with increased control over routine ventilatory settings by pre-configuring the ventilator with these routine settings. Further, the present disclosure provides increased assurance as to the consistency of the routine ventilatory settings by eliminating repeated data entry by clinicians, decreasing the chances of error. | 06-09-2011 |
| 20110138311 | Display Of Respiratory Data On A Ventilator Graphical User Interface - This disclosure describes improved systems and methods for displaying respiratory data to a clinician in a ventilatory system. Specifically, embodiments enable a clinician to visualize data from a variety of historical graphical representations associated with a selected historical time. That is, a cursor or other visual indicator may be provided that identifies the selected historical time on each of a plurality of historical graphical representations of respiratory data. Further, specific data values associated with the historical time and corresponding to a data point on each of the plurality of historical graphical representations may be highlighted for optimal display and comparison. | 06-09-2011 |
| 20110138309 | Visual Indication Of Settings Changes On A Ventilator Graphical User Interface - This disclosure describes improved systems and methods for visualizing the application of changes to respiratory settings in a ventilatory system. Specifically, the present disclosure provides for a setup animation window that may be easily accessed from a setup icon, for example, and also provides for a settings animation window that may be easily accessed from any number of displayed ventilatory settings. In fact, the setup animation window may be directly accessed by touching, clicking, or otherwise selecting the setup icon and may expand from the setup icon to display any number of settings access elements. Alternatively, the settings animation window may be directly accessed by touching, clicking, or otherwise selecting any one of the displayed ventilatory settings and may expand from the displayed ventilatory settings to provide corresponding settings access elements. The corresponding settings access elements each corresponding to an individual ventilatory setting of the displayed ventilatory settings and useful for efficiently adjusting the displayed ventilatory settings. Ventilatory settings may be changed and accepted via either animation window. In one embodiment, upon accepting settings changes from the settings animation window, settings may appear to visually float or fade into the displayed ventilatory settings. In this embodiment, clinicians may view the settings changes as they are accepted and applied to the GUI. | 06-09-2011 |
| 20110138308 | Display And Access To Settings On A Ventilator Graphical User Interface - This disclosure describes improved systems and methods for displaying, accessing, and changing respiratory settings in a ventilatory system. Specifically, the present disclosure provides for one or more settings access elements, each corresponding to an individual ventilatory setting, for efficiently adjusting displayed ventilatory settings. Access elements may be easily identified as buttons, tabs, icons, or other access displays. After settings have been accessed and changed, pending settings changes may be visually identified on the GUI, or other user interface. In addition, pending settings changes associated with one or more screens of a GUI may be easily identified. Acceptance elements may also be provided which indicate whether one, multiple, or no pending settings changes are available for acceptance. | 06-09-2011 |
| 20110137387 | METHOD AND APPARATUS FOR CONNECTING A HOSE TO A WARMING BLANKET - A nozzle is provided for connecting an air hose to an air inlet. In one embodiment, the nozzle includes a tapered region and a plurality of vents. In another embodiment, the nozzle includes a projection configured to facilitate insertion of the nozzle into an air inlet. Warming assemblies comprising heated air blowers and warming blankets connected by the air hose and varying nozzle embodiments are also provided. | 06-09-2011 |
| 20110133936 | Interactive Multilevel Alarm - This disclosure describes embodiments of alarm systems and methods for use in devices such as medical ventilators. Embodiments described below provide for an apparatus of an interactive multilevel alarm system. Embodiments of the alarms also provide, at a glance, current alarm and device status information and historical alarm information to the operator. Embodiments also direct interaction with the alarming functions of the device by the operator. In some embodiments, additional visual indicators may be provided to identify non-normal or noteworthy operating conditions, such as the use of a therapeutic gas by a mechanical ventilator, so that the operator can assess the impact of that non-normal condition on any current and historical alarm information simultaneously provided. | 06-09-2011 |
| 20110132371 | Alarm Indication System - This disclosure describes embodiments of alarm systems and methods for use in devices such as medical ventilators. Embodiments described provide for an apparatus of an interactive multilevel alarm system. Embodiments of the alarms also provide, at a glance, current alarm and device status information and historical alarm information to the operator. Embodiments also direct interaction with the alarming functions of the device by the operator. In some embodiments, additional visual indicators may be provided to identify non-normal or noteworthy operating conditions, such as the use of a therapeutic gas by a mechanical ventilator, so that the operator can assess the impact of that non-normal condition on any current and historical alarm information simultaneously provided. | 06-09-2011 |
| 20110132369 | Ventilation System With System Status Display - The disclosure describes a novel approach for displaying information on a ventilator system. The disclosure describes a novel system including a removable primary display and system status display. Further, the disclosure describes a novel method for displaying ventilator information and a novel method for controlling a ventilator system. | 06-09-2011 |
| 20110132368 | Display Of Historical Alarm Status - This disclosure describes embodiments of alarm systems and methods for use in devices such as medical ventilators. Embodiments described provide for an apparatus of an interactive multilevel alarm system. Embodiments of the alarms also provide, at a glance, current alarm and device status information and historical alarm information to the operator. Embodiments also direct interaction with the alarming functions of the device by the operator. In some embodiments, additional visual indicators may be provided to identify non-normal or noteworthy operating conditions, such as the use of a therapeutic gas by a mechanical ventilator, so that the operator can assess the impact of that non-normal condition on any current and historical alarm information simultaneously provided. | 06-09-2011 |
| 20110132367 | Ventilator Respiratory Variable-Sized Gas Accumulator - This disclosure describes systems and methods for ventilating a patient with a system that includes an accumulator for storing a gas mixture. The disclosure further describes a novel approach for a fast delivery of a change in gas mixture to a patient by utilizing a variable-sized accumulator. | 06-09-2011 |
| 20110132366 | Ventilator Respiratory Gas Accumulator With Purge Valve - This disclosure describes systems and methods for ventilating a patient with a system that includes an accumulator for storing a gas mixture. This disclosure describes systems and methods for ventilating a patient with a system that includes an accumulator located away from the flow path that reduces/eliminates pockets of an undesirable gas mixture from entering the gas flow path and reaching the patient after a gas mixture change by utilizing a purge valve. | 06-09-2011 |
| 20110132365 | Ventilator Respiratory Gas Accumulator With Sampling Chamber - This disclosure describes systems and methods for ventilating a patient with a system that includes an accumulator for storing a gas mixture. The disclosure describes a novel approach for determining the concentrations of gas found in the accumulator by utilizing a sampling chamber. The disclosure further describes a novel approach for a fast delivery of a change in gas mixture to a patient by utilizing a variable-sized accumulator. This disclosure also describes systems and methods for ventilating a patient with a system that includes an accumulator located away from the flow path that reduces/eliminates pockets of an undesirable gas mixture from entering the gas flow path and reaching the patient after a gas mixture change by utilizing at least one of a dip-tube, a purge valve, and a variable size accumulator. | 06-09-2011 |
| 20110132364 | Ventilator Respiratory Gas Accumulator With Dip Tube - This disclosure describes systems and methods for ventilating a patient with a system that includes an accumulator for storing a gas mixture. The disclosure describes systems and methods for ventilating a patient with a system that includes an accumulator located away from the flow path that reduces or eliminates pockets or burps of an undesirable gas mixture from entering the gas flow path and reaching the patient after a gas mixture change. The disclosure also describes a novel approach for reducing or eliminating these air pockets of undesirable gas by utilizing a dip-tube. | 06-09-2011 |
| 20110132362 | Ventilation System With System Status Display Including A User Interface - The disclosure describes a novel approach for displaying information on a ventilator system. The disclosure describes a novel respiratory system including a removable primary display and system status display. Further, the disclosure describes a novel method for displaying ventilator information and a novel method for controlling a ventilator system. | 06-09-2011 |
| 20110132361 | Ventilation System With Removable Primary Display - The disclosure describes a novel approach for displaying information on a ventilator system. The disclosure describes a novel respiratory system including a removable primary display and system status display. Further, the disclosure describes a novel method for displaying ventilator information and a novel method for controlling a ventilator system. | 06-09-2011 |
| 20110130638 | MEDICAL SENSOR AND TECHNIQUE FOR USING THE SAME - A medical sensor may be adapted to account for factors that cause irregularities in pulse oximetry measurements or other spectrophotemetric measurements. Sensors are provided with surface features that reduce the amount of outside light or shunted light that impinge the detecting elements of the sensor. The sensor is adapted to reduce the effect of outside light or shunted light on pulse oximetry measurements. | 06-02-2011 |
| 20110128008 | Method And Apparatus For Indicating Battery Cell Status On A Battery Pack Assembly Used During Mechanical Ventilation - This disclosure describes methods and apparatus for indicating battery cell status on a battery pack assembly used during mechanical ventilation. Embodiments described herein seek to provide methods for indicating battery cell status on the exposed exterior of a battery assembly pack both when the battery is in use and when the battery is not in use during mechanical ventilation. Embodiments utilize power from the ventilator as well as power from the battery pack itself to light the indicators during periods of battery use and non-use, respectively. Embodiments described herein further seek to provide an apparatus indicating battery cell status on the exposed exterior of the battery pack assembly during mechanical ventilation. Embodiments described herein further seek to provide an apparatus for a battery pack assembly used during mechanical ventilation. Embodiments described herein seek to provide a system for a ventilation system with an inserted battery pack assembly. | 06-02-2011 |
| 20110126837 | Exhalation Valve Assembly With Integrated Filter - An exhalation valve assembly that controls the pressure of exhaled gas in a ventilation system is described. The exhalation valve assembly includes an actuator module that may be fixed to the ventilation system and a valve module, removable for cleaning or disposal, through which the exhaled gas flows and that controls the pressure and release of the exhaled gas to the environment. Other components may also be incorporated into the assembly including a filter module, a flow meter and a condensate trap. | 06-02-2011 |
| 20110126836 | Exhalation Valve Assembly With Selectable Contagious/Non-Contagious Latch - An exhalation valve assembly that controls the pressure of exhaled gas in a ventilation system is described. The exhalation valve assembly includes an actuator module that may be fixed to the ventilation system and a valve module, removable for cleaning or disposal, through which the exhaled gas flows and that controls the pressure and release of the exhaled gas to the environment. Other components may also be incorporated into the assembly including a filter module, a flow meter and a condensate trap. | 06-02-2011 |
| 20110126835 | Exhalation Valve Assembly With Integrated Filter And Flow Sensor - An exhalation valve assembly that controls the pressure of exhaled gas in a ventilation system is described. The exhalation valve assembly includes an actuator module that may be fixed to the ventilation system and a valve module, removable for cleaning or disposal, through which the exhaled gas flows and that controls the pressure and release of the exhaled gas to the environment. Other components may also be incorporated into the assembly including a filter module, a flow meter and a condensate trap. | 06-02-2011 |
| 20110126834 | Exhalation Valve Assembly With Integral Flow Sensor - An exhalation valve assembly that controls the pressure of exhaled gas in a ventilation system is described. The exhalation valve assembly includes an actuator module that may be fixed to the ventilation system and a valve module, removable for cleaning or disposal, through which the exhaled gas flows and that controls the pressure and release of the exhaled gas to the environment. Other components may also be incorporated into the assembly including a filter module, a flow meter and a condensate trap. | 06-02-2011 |
| 20110126832 | Exhalation Valve Assembly - An exhalation valve assembly that controls the pressure of exhaled gas in a ventilation system is described. The exhalation valve assembly includes an actuator module that may be fixed to the ventilation system and a valve module, removable for cleaning or disposal, through which the exhaled gas flows and that controls the pressure and release of the exhaled gas to the environment. Other components may also be incorporated into the assembly including a filter module, a flow meter and a condensate trap. | 06-02-2011 |
| 20110126829 | Apparatus And System For A Battery Pack Assembly Used During Mechanical Ventilation - This disclosure describes methods and apparatus for indicating battery cell status on a battery pack assembly used during mechanical ventilation. Embodiments described herein seek to provide methods for indicating battery cell status on the exposed exterior of a battery assembly pack both when the battery is in use and when the battery is not in use during mechanical ventilation. Embodiments utilize power from the ventilator as well as power from the battery pack itself to light the indicators during periods of battery use and non-use, respectively. Embodiments described herein further seek to provide an apparatus indicating battery cell status on the exposed exterior of the battery pack assembly during mechanical ventilation. Embodiments described herein further seek to provide an apparatus for a battery pack assembly used during mechanical ventilation. Embodiments described herein seek to provide a system for a ventilation system with an inserted battery pack assembly. | 06-02-2011 |
| 20110124991 | SYSTEM AND METHOD FOR MITIGATING INTERFERENCE IN PULSE OXIMETRY - A pulse oximetry sensor adapted to emit light from an emitter proximate to a patient's tissue and detect a portion of the emitted light on a detector proximate to the tissue. The pulse oximetry system is adapted to acquire position data for the emitter and for the detector with one or more position indicators. The pulse oximetry system is adapted to process the position data to obtain a change in position of the emitter and the detector; and to process pulse oximetry measurements using the change in position to obtain a motion-corrected pulse oximetry data. | 05-26-2011 |
| 20110121221 | INLET OPENING DEVICE FOR INFLATING A WARMING BLANKET - A warming blanket is provided that includes a first sheet and a second sheet sealed at least along a common edge. An air inlet is provided on the warming blanket where the first sheet and the second sheet are not sealed. An inlet opening device is attached to the inlet opening. The inlet opening device separates the first sheet from the second sheet at the inlet opening in the absence of an opposing force. Methods of forming and using the warming blanket are also provided. | 05-26-2011 |
| 20110120468 | AIRWAY DEVICES WITH INTEGRAL HUMIDIFICATION - According to various embodiments, a tracheal tube may include an integral humidification system. The tracheal tube may be formed at least partially from a material that is permeable to water vapor but substantially impermeable to respiratory gases. The water vapor may be actively provided to the tracheal tube or may be passively transferred from a patient's surrounding airway space. | 05-26-2011 |
| 20110118573 | Medical Device Alarm Modeling - Embodiments of the present disclosure relate to patient monitors with alarm modeling features that may be employed to set alarm limits. According to certain embodiments, the patient monitors may include a user interface for setting alarm limits that may be displayed on the patient monitors and/or on an external device, such as a central monitoring station. The user interface may allow a user to vary alarm limit settings and view how the settings change the alarm history for a representative data trend. | 05-19-2011 |
| 20110112387 | SIMULTANEOUS MEASUREMENT OF PULSE AND REGIONAL BLOOD OXYGEN SATURATION - Methods and systems are provided that allow for the simultaneous calculation of pulse and regional blood oxygen saturation. An oximeter system that includes a sensor with a plurality of emitters and detectors may be used to calculate a pulse and/or regional blood oxygen saturation. A plurality of light signals may be emitted from light emitters. A first light signal may be received at a first light detector and a second light signal may be received at a second light detector. A pulse and/or regional blood oxygen saturation value may be calculated based on the received first and/or second light signals. The pulse and regional blood oxygen saturation values may be calculated substantially simultaneously. The calculated pulse and regional blood oxygen saturation values as well as other blood oxygen saturation values may be displayed simultaneously in a preconfigured portion of a display. | 05-12-2011 |
| 20110112382 | SYSTEMS AND METHODS FOR COMBINED PHYSIOLOGICAL SENSORS - Systems and methods are provided for monitoring the physiological state of a subject. One or more physiological parameters of a subject may be determined from a photoplethysmograph (PPG) signal or signals obtained using at least one PPG sensor. In some embodiments, an electrical physiological signal (EPS) sensor may be located in or near a PPG sensor. A sensor configuration including both PPG sensors and EPS sensors may be advantageously used to detect a PPG signal or signals in combination with one or more EPS signal or signals. To reduce potential interference between an EPS sensor and a PPG sensor, fiber-optic input and output lines may be used to transmit optical signals from light generating circuitry and light detecting circuitry. In some embodiments, the generating and detecting circuitry may be located remotely from one another and may further be located remotely from the EPS sensor, PPG sensor, or both. | 05-12-2011 |
| 20110112379 | SYSTEMS AND METHODS FOR PROVIDING SENSOR ARRAYS FOR DETECTING PHYSIOLOGICAL CHARACTERISTICS - Systems and methods for determining physiological parameters of a subject using a sensor array. In an embodiment, a sensor array may contain sensor elements for determining multiple physiological parameters. A combination of sensor elements and the physiological parameters determined may be selected based on signals obtained from the sensor elements of the sensor array. A sensor array may be connected to a monitoring device that may select an optimal sensor element or combination of sensor elements and one or more physiological parameters to be determined. The monitoring device may then determine physiological parameters using the selected combination of sensor elements and display information associated with the parameters on a monitor for use, for example, in monitoring a medical patient. | 05-12-2011 |
| 20110098544 | SYSTEM AND METHOD FOR INTEGRATING VOICE WITH A MEDICAL DEVICE - There is provided a system and method for integrating voice with a medical device. More specifically, in one embodiment, there is provided a medical device comprising a speech recognition system configured to receive a processed voice, compare the processed voice to a speech database, identify a command for the medical device corresponding to the processed voice based on the comparison, and execute the identified medical device command. | 04-28-2011 |
| 20110092785 | Selection of Ensemble Averaging Weights for a Pulse Oximeter Based on Signal Quality Metrics - A pulse oximeter system is presently disclosed. The pulse oximeter system includes a processor and circuitry. The processor and circuitry are configured to receive light waveforms from a sensor, determine at least one signal quality metric for the light waveforms, calculate at least one weight using a continuously variable weighting function based on the at least one signal quality metric, and ensemble average the light waveforms using the at least one calculated weight. | 04-21-2011 |
| 20110083509 | Photoacoustic Spectroscopy With Focused Light - Photoacoustic measurements utilize emitted light to generate an acoustic response in tissue, with the acoustic response being proportional to the presence of an absorber of the light in the tissue. The present disclosure relates the use of focused light to acquire photoacoustic measurements. In one embodiment, the light is modulated, such as spatially modulated, such that the light may be focused within an otherwise scattering medium, such as tissue. | 04-14-2011 |
| 20110078596 | Protocol Analyzer System And Method For Medical Monitoring Module - A protocol analyzer and a host simulator for a medical monitoring module testing system are provided. The protocol analyzer may monitor communication in a first protocol from the medical monitoring module to a host or host simulator. The protocol analyzer may parse and display the messages of the first protocol on a display of a computer. The host simulator may receive data from the medical monitoring module and display data corresponding to a physiological parameter on the display. | 03-31-2011 |
| 20110077547 | Spectroscopic Method And System For Assessing Tissue Temperature - According to various embodiments, a medical system and method for determining tissue temperature may include a spectroscopic sensor. The spectroscopic sensors may be configured to provide information about changes in water absorption profiles at one or more absorption peaks. Such sensors may be incorporated into ablation systems for tissue ablation. Temperature information may be used to determine the scope, volume, and/or depth of the ablation. | 03-31-2011 |
| 20110077488 | Evaluation Board For A Medical Monitoring Module System And Method - An evaluation board for a medical monitoring module is provided. The evaluation board includes a socket configured to receive a medical monitoring module and a plurality of connections for connection to a host or host simulator and a second device. The evaluation board may include a non-isolated power supply to provide power to the medical monitoring module. The evaluation board may also provide communication in a protocol between the host or host simulator and the medical monitoring module. | 03-31-2011 |
| 20110077487 | Evaluation Kit For Medical Monitoring Module System and Method - An evaluation kit for monitoring, testing, and debugging a medical monitoring module is provided. The kit includes a hardware and software to provide for monitoring of communication between the medical monitoring module and a host or host simulator. The kit may provide for various system configurations having a sensor device, a computer having a protocol analyzer and a host simulator, a medical monitoring module, a software host, a medical monitor, or any combination thereof. | 03-31-2011 |
| 20110077485 | Method Of Analyzing Photon Density Waves In A Medical Monitor - A monitoring system that may include an emission feature capable of emitting light into tissue, a modulator capable of modulating the emitter at a modulation frequency generally in a range of about 50 MHz to 3.0 GHz to generate resolvable photon density waves, a detection feature capable of detecting photons of the photon density waves after passage through the tissue and capable of providing a distribution of detected photons over a time period for the photon density waves, and a processor capable of calculating a skewness of the distribution and making determinations relating to a value of a physiologic parameter of the tissue based at least in part on the skewness of the distribution. | 03-31-2011 |
| 20110077483 | SENSOR WITH AN OPTICAL COUPLING MATERIAL TO IMPROVE PLETHYSMOGRAPHIC MEASUREMENTS AND METHOD OF USING THE SAME - According to various embodiments, a medical sensor assembly may include an optical coupling material configured to prevent undesired light from being detected and to enhance the amount of light received at the detector. The optical coupling material may be a gel, liquid, oil, or other non-solid material with appropriate optical properties. | 03-31-2011 |
| 20110077473 | PATIENT SENSOR INTERCOMMUNICATION CIRCUITRY FOR A MEDICAL MONITOR - Systems, methods, and devices for intercommunication between a medical sensor and an electronic patient monitor are provided. For example, one embodiment of a system for communicably coupling a medical sensor to an electronic patient monitor may include a sensor-side communication connector and a monitor-side communication connector. The sensor-side communication connector may be capable of receiving a raw physiological measurement signal from the medical sensor, and the monitor-side communication connector may be capable of providing a digital physiological measurement signal based at least in part on the raw physiological measurement signal to the electronic patient monitor via a data link. | 03-31-2011 |
| 20110077470 | Patient Monitor Symmetry Control - Embodiments of the present disclosure relate to customization of user interfaces for medical devices. According to certain embodiments, patient monitors may include a symmetry control feature that adjusts the position of touch sensitive inputs shown on a display of the patient monitor. The symmetry control feature may allow a user to move the touch sensitive inputs from one side of the display to another to allow a user to access the touch sensitive inputs without blocking a portion of the display that displays patient physiological data. Further, in certain embodiments, the symmetry control feature may vary the location of one or more touch sensitive inputs based on user identification information received through a communication interface. | 03-31-2011 |
| 20110074342 | WIRELESS ELECTRICITY FOR ELECTRONIC DEVICES - A system and method for the wirelessly charging electronic devices. For example, the electronic device may be a pulse oximeter with a wireless sensor. The wireless sensor may include a sensor power source adapted to power the wireless sensor. The wireless sensor may also include a sensor charging device adapted to receive a wireless electromagnetic charging signal and charge the power source via the wireless electromagnetic charging signal. | 03-31-2011 |
| 20110073115 | TRACHEAL CUFF FOR PROVIDING SEAL WITH REDUCED PRESSURE ON THE TRACHEAL WALLS - According to various embodiments, a tracheal tube may include a cuff assembly that relies on mechanical pressure rather than inflation pressure to form a seal against a patient's trachea. Such cuff assemblies may include cone or umbrella-shaped structures that may form seals at substantially lower pressures than traditional inflation cuffs. One or more of such cuff assemblies may be used instead of or in addition to an inflation cuff to provide an improved seal. | 03-31-2011 |
| 20110073114 | MULTIPLE CHANNEL TRACHEAL TUBE PLACEMENT DEVICE AND TECHNIQUE FOR USING THE SAME - According to various embodiments, a tracheal tube may employ sensing techniques for determining a distance between the inserted tube and an anatomical structure such as a carina. The distance information may provide an indication as to whether or not the tracheal tube is properly placed within the trachea. Because a tracheal tube may rotate within the trachea, the sensing information may be gathered from multiple locations on the tracheal tube for a rotation-independent measurement technique. | 03-31-2011 |
| 20110071598 | Photoacoustic Spectroscopy Method And System To Discern Sepsis From Shock - According to various embodiments, a medical system and method for determining a microcirculation parameter of a patient may include a photoacoustic sensor. Specifically, a signal from a photoacoustic sensor may be used to determine if a patient is likely to have sepsis or shock. Although sepsis and shock present similarly with regard to many patient parameters, they may be differentiated by characteristic microcirculation changes. | 03-24-2011 |
| 20110071378 | Signal Processing Warping Technique - Methods and systems are provided for using time-frequency warping to analyze a physiological signal. One embodiment includes applying a warping operator to the physiological signal based on the energy density of the signal. The warped physiological signal may be analyzed to determine whether non-physiological signal components are present. Further, the same warping operator may be applied to signal quality indicators, and the warped physiological signal may be analyzed based on the warped signal quality indicators. Non-physiological signal components, or types of non-physiological noise sources, may be identified based on a comparison of the physiological signal with the signal quality indicators. Non-physiological signal components may also be identified based on a neural network of known noise functions. In some embodiments, the non-physiological signal components may be removed to increase accuracy in estimating physiological parameters. | 03-24-2011 |
| 20110071376 | Determination Of A Physiological Parameter - Methods and systems are provided for analyzing a physiological signal by applying a continuous wavelet transform on the signal and comparing the wavelet transformation to a library of wavelet signatures corresponding to one or more physiological conditions and/or patient conditions. A pulse oximeter system may relate the wavelet transformation with one or more of the wavelet signatures based on filters and/or thresholds, and may determine that the wavelet transformation indicates that the patient of the physiological signal has a physiological condition indicated by the related wavelet signature. In some embodiments, the pulse oximeter system may use previous analyses in a neural network to update the library. Further, non-physiological components of the wavelet transformation may also be identified and removed. | 03-24-2011 |
| 20110071374 | Minimax Filtering For Pulse Oximetry - Methods and systems are provided for filtering a pulse oximetry signal without making assumptions on the noise statistics of the signal. A pulse oximeter may receive an energy signal proportional to an amount of light detected at the sensor. The energy signal may be converted and digitally processed to estimate physiological data. The pulse oximeter may include a processor configured to execute H | 03-24-2011 |
| 20110071373 | Time-Division Multiplexing In A Multi-Wavelength Photon Density Wave System - Multi-wavelength photon density wave medical systems, methods, and devices are provided. In one embodiment, a multi-wavelength system may include a sensor, a sensor cable, and a patient monitor. The sensor may have an emitter output and a detector input configured to pass a multi-wavelength photon density wave input signal into a patient and receive a resulting multi-wavelength photon density wave output signal. The sensor cable may couple to the sensor using two optical cables for transmitting and receiving the multi-wavelength photon density wave signals. The patient monitor may couple to the sensor cable and generate several time-division multiplexed single-wavelength input signals by modulating one or more light sources at a frequency sufficient to produce resolvable photon density waves. By combining the several time-division multiplexed single-wavelength input signals into one of the optical cables of the sensor cable, the patient monitor may generate the multi-wavelength photon density wave input signal. | 03-24-2011 |
| 20110071371 | Wavelength-Division Multiplexing In A Multi-Wavelength Photon Density Wave System - Multi-wavelength photon density wave medical systems, methods, and devices are provided. In one embodiment, a multi-wavelength photon density wave patient monitor includes multiple light sources, a driving circuit, a fiber coupler, a sensor cable connector, a wavelength demultiplexer, detectors, and data processing circuitry. The driving circuit may modulate the light sources to produce several single-wavelength input photon density wave signals, which the fiber coupler may join into a multi-wavelength input signal. The sensor cable connector may provide this multi-wavelength input signal to a sensor attached to the patient and receive a multi-wavelength output signal. The wavelength demultiplexer may separate the multi-wavelength output signal into single-wavelength output signals for detection by the detectors. Based on a comparison of one of the single-wavelength output signals to a corresponding one of the single-wavelength input signals, the data processing circuitry may determine a physiological parameter of the patient. | 03-24-2011 |
| 20110071368 | Medical Device Interface Customization Systems And Methods - Embodiments of the present disclosure relate to customization of user interfaces for medical devices. According to certain embodiments, patient monitors may include a device body designed to interface with interchangeable and removable faceplates. The faceplates may include input devices for controlling the patient monitor. Further, the properties of the input devices, such as the size, shape, labels, type, and location, may vary between faceplates. Further, in certain embodiments, the faceplates may include a memory for storing preferences associated with the user interface. | 03-24-2011 |
| 20110071366 | Determination Of A Physiological Parameter - Methods and systems are provided for transmitting and receiving photon density waves to and from tissue, and processing the received waves using wavelet transforms to identify non-physiological signal components and/or identify physiological conditions. A pulse oximeter may receive the photon density waves from the tissue to generate a signal having phase and amplitude information. A phase signal may be proportional to a scattering by total particles in the tissue, and an amplitude signal may correlate to an absorption by certain particles, providing information on a ratio of different particles in the tissue. Processing the phase and amplitude signals with wavelet transforms may enable an analysis of signals with respect to time, frequency, and magnitude, and may produce various physiological data. For example, non-physiological noise components may be identified, and certain physiological conditions may be identified by processing scalograms of the original signals with patterns corresponding to certain physiological conditions. | 03-24-2011 |
| 20110066016 | OPAQUE, ELECTRICALLY NONCONDUCTIVE REGION ON A MEDICAL SENSOR - A medical sensor may be adapted to prevent unwanted light and electrical interference from corrupting physiological measurements. Sensors are provided with features that reduce the amount of outside light or shunted light that impinge the detecting elements of the sensor. The sensor is adapted to reduce crosstalk between electrical signals, increasing the accuracy of measurements. The sensor is also adapted to reduce the effect of outside light or shunted light on pulse oximetry measurements. | 03-17-2011 |
| 20110046464 | PHOTOPLETHYSMOGRAPHY WITH CONTROLLED APPLICATION OF SENSOR PRESSURE - Systems, methods, and devices for obtaining consistently reproducible diagnostic measurements with a photoplethysmographic sensor are provided. In one embodiment, a method for obtaining such a diagnostic measurement includes applying a pressure between a photoplethysmographic sensor and a patient, increasing the pressure until the photoplethysmographic sensor outputs a plethysmographic waveform of minimal amplitude, decreasing the pressure by a predetermined fraction, and obtaining a diagnostic measurement using the photoplethysmographic sensor. The pressure may be applied using a pressure device that includes, for example, a clip, a wrap, an inflatable balloon or bladder, or an inflatable cuff or any combination thereof. | 02-24-2011 |
| 20110046461 | NANOFIBER ADHESIVES USED IN MEDICAL DEVICES - Nanofiber adhesives and their uses with device, such as medical devices, are described. In one embodiment, a nanofiber adhesive layer may be disposed on a surface of a medical device, such as a backing layer of a sensor, for adhesion to a substrate. The nanofiber adhesive layer may allow durable adhesion to the substrate. Other described features may include materials and methods to determine the attachment of the medical device to a patient by determining the adhesive state of the adhesive layer. | 02-24-2011 |
| 20110041850 | Method For Ventilation - The disclosure describes a method for automatically initiating ventilation, controlling ventilation, transitioning a ventilator to subject controlled ventilation, and weaning a subject from ventilation. The disclosure describes that the method for automatically initiating ventilation includes inputting a physical characteristic of the subject into a ventilator. The physical characteristic may be ideal body weight, height, or age. Based on the inputted physical characteristic, one or more ventilation parameters are calculated. The disclosure describes initiating ventilation based on the calculated parameters. During ventilation at least one physiological parameter of the subject is monitored. At least one ventilation parameter may be adjusted based on the monitoring of the physiological parameters and the inputted physical characteristic. | 02-24-2011 |
| 20110041849 | SYSTEMS AND METHODS FOR CONTROLLING A VENTILATOR - A method and system for controlling a ventilator is disclosed. Oxygen saturation values from pulse oximeters may be used to adjust the settings of a ventilator. Multiple sensors and multiple oxygen saturation values in a fault tolerant pulse oximeter configuration may be used to provide a backup value or confidence measure, thereby increasing reliability and patient safety. | 02-24-2011 |
| 20110034789 | DIGITAL SWITCHING IN MULTI-SITE SENSOR - A system includes a flexible sensor configured to be placed into a first configuration and a second configuration, wherein the sensor is configured to measure a physiological characteristic. The sensor may include a first memory device configured to store a first set of calibration data and a second memory device configured to store a second set of calibration data. The system may further include a monitor coupled to the sensor, wherein the first memory device is accessible by the monitor in the first configuration and the second memory device is accessible by the monitor in the second configuration. | 02-10-2011 |
| 20110034788 | METHODS AND APPARATUS FOR USING MULTIPLE SENSORS TO MEASURE DIFFERENTIAL BLOOD TRANSPORT TIME IN A PATIENT - The difference in time that it takes for blood to flow to two locations in a patient's body can be measured by placing, on the patient's body, sensors for non-invasively detecting a variable characteristic of the content of the blood at each of those locations. The time of occurrence of a change in that characteristic as detected by one of the sensors is compared to the time of occurrence of that same change as detected by the other sensor. The difference between these two times is a measure of the difference in time that it takes for blood to flow to the locations of the two sensors. | 02-10-2011 |
| 20110034783 | SYSTEMS AND METHODS FOR BALANCING POWER CONSUMPTION AND UTILITY OF WIRELESS MEDICAL SENSORS - Systems, methods, and devices for balancing power consumption and utility of medical sensors are provided. For example, a wireless medical sensor device may include a sensor, data processing circuitry, and wireless transmission circuitry. The sensor may be capable of obtaining a raw measurement from a patient, and the data processing circuitry may be capable of sampling the raw measurement to obtain values. Further, the data processing circuitry also may be capable of determining an update interval based at least in part on an update factor associated with a status of the patient, and the wireless transmission circuitry may be capable of wirelessly transmitting one of the values to an external wireless receiver at the update interval. | 02-10-2011 |
| 20110030680 | TRACHEAL TUBE WITH DRUG DELIVERY DEVICE AND METHOD OF USING THE SAME - According to various embodiments, a tracheal tube may include a drug delivery system for nebulizing drug to droplets within a particular drop size range. The drug delivery system may include an integral nebulizer located towards a distal end of the tracheal tube. The nebulizer may comprise a micropump and may be in fluid communication with a drug delivery lumen, which in turn may be coupled to a system for monitoring the delivery of drug to the nebulizer. The nebulizer may be sized and shaped to be accommodated within a lumen that runs alongside a main respiratory lumen of the tracheal tube. | 02-10-2011 |
| 20110029910 | Method And System For Providing A Graphical User Interface For Delivering A Low Flow Recruitment Maneuver - This disclosure describes systems and methods for delivering one or more low flow recruitment maneuvers to a patient while on a ventilator. Embodiments described herein provide methods for delivering low flow recruitment maneuvers wherein either or both of the inspiratory and expiratory phases of the recruitment maneuver are maintained by the ventilator at a low flow. Embodiments described herein provide for single-breath recruitment maneuvers and multi-breath recruitment maneuvers at low flow. Embodiments described herein provide for graphical display of a pressure-volume loop (PV loop) for both single-breath and multi-breath recruitment maneuvers. Embodiments described herein also disclose an automated ventilator functionality whereby recruitment maneuvers settings and/or post-recruitment maneuver settings for resuming prescribed ventilation may be set via a graphical user interface. Other embodiments described herein enable a clinician to configure the ventilator to synchronize the end the recruitment maneuver with patient-triggered inspiration for post-recruitment maneuver ventilation. | 02-03-2011 |
| 20110029865 | Control Interface For A Medical Monitor - The present disclosure describes the use of virtual control structures on medial devices, such as medical monitors. The virtual control structures may be implemented as virtual knobs, virtual sliders, or as other structures suitable for adjusting an operational parameter of the medical or other device. When displayed on a touch screen, the virtual control structures may be manipulated to adjust the operational parameter. When not in use, the virtual control structure may be hidden or minimized, allowing the touch screen to be primarily used for the display of patient data or operational data for the device. | 02-03-2011 |
| 20110028814 | Medical Monitoring Patch Device And Methods - Embodiments described herein may include systems and methods for monitoring physiological parameters of a patient. Specifically, embodiments disclose the use of a generally self-contained pulse oximeter that is small and lightweight, such that it may be comfortably affixed to a patient to provide physiological data pertaining to the patient. Embodiments also provide methods of using and manufacturing a pulse oximetry patch. | 02-03-2011 |
| 20110027334 | MULTILAYER MEDICAL DEVICES HAVING AN ENCAPSULATED EDGE AND METHODS THEREOF - The present disclosure describes a medical which includes a body defining a conduit. The body includes a multilayer wall having at least one edge. The wall including a core layer positioned between an inner layer and an outer layer, wherein at least one of the inner and outer layers encapsulates the core layer along the edge. | 02-03-2011 |
| 20110023881 | Method And System For Generating A Pressure Volume Loop Of A Low Flow Recruitment Maneuver - This disclosure describes systems and methods for delivering one or more low flow recruitment maneuvers to a patient while on a ventilator. Embodiments described herein provide methods for delivering low flow recruitment maneuvers wherein either or both of the inspiratory and expiratory phases of the recruitment maneuver are maintained by the ventilator at a low flow. Embodiments described herein provide for single-breath recruitment maneuvers and multi-breath recruitment maneuvers at low flow. Embodiments described herein provide for graphical display of a pressure-volume loop (PV loop) for both single-breath and multi-breath recruitment maneuvers. Embodiments described herein also disclose an automated ventilator functionality whereby recruitment maneuvers settings and/or post-recruitment maneuver settings for resuming prescribed ventilation may be set via a graphical user interface. Other embodiments described herein enable a clinician to configure the ventilator to synchronize the end the recruitment maneuver with patient-triggered inspiration for post-recruitment maneuver ventilation. | 02-03-2011 |
| 20110023880 | Method And System For Delivering A Multi-Breath, Low Flow Recruitment Maneuver - This disclosure describes systems and methods for delivering one or more low flow recruitment maneuvers to a patient while on a ventilator. Embodiments described herein provide methods for delivering low flow recruitment maneuvers wherein either or both of the inspiratory and expiratory phases of the recruitment maneuver are maintained by the ventilator at a low flow. Embodiments described herein provide for single-breath recruitment maneuvers and multi-breath recruitment maneuvers at low flow. Embodiments described herein provide for graphical display of a pressure-volume loop (PV loop) for both single-breath and multi-breath recruitment maneuvers. Embodiments described herein also disclose an automated ventilator functionality whereby recruitment maneuvers settings and/or post-recruitment maneuver settings for resuming prescribed ventilation may be set via a graphical user interface. Other embodiments described herein enable a clinician to configure the ventilator to synchronize the end the recruitment maneuver with patient-triggered inspiration for post-recruitment maneuver ventilation. | 02-03-2011 |
| 20110023879 | Ventilator Based On A Fluid Equivalent Of The "Digital To Analog Voltage" Concept - The present invention is directed to a ventilator that, in one embodiment, uses one or more valve banks having precalibrated orifices to perform real time control of flow metering devices and, in a second embodiment, uses a choked flow orifice and upstream gas pressure regulator to generate a desired flow trajectory. | 02-03-2011 |
| 20110023878 | Method And System For Delivering A Single-Breath, Low Flow Recruitment Maneuver - This disclosure describes systems and methods for delivering one or more low flow recruitment maneuvers to a patient while on a ventilator. Embodiments described herein provide methods for delivering low flow recruitment maneuvers wherein either or both of the inspiratory and expiratory phases of the recruitment maneuver are maintained by the ventilator at a low flow. Embodiments described herein provide for single-breath recruitment maneuvers and multi-breath recruitment maneuvers at low flow. Embodiments described herein provide for graphical display of a pressure-volume loop (PV loop) for both single-breath and multi-breath recruitment maneuvers. Embodiments described herein also disclose an automated ventilator functionality whereby recruitment maneuvers settings and/or post-recruitment maneuver settings for resuming prescribed ventilation may be set via a graphical user interface. Other embodiments described herein enable a clinician to configure the ventilator to synchronize the end the recruitment maneuver with patient-triggered inspiration for post-recruitment maneuver ventilation. | 02-03-2011 |
| 20110023875 | CONNECTOR FOR COUPLING A TRACHEAL TUBE TO AN AUXILIARY DEVICE - Various embodiments of a connector assembly are provided to removably couple a proximal end of a tracheal tube to components associated with a ventilator or an anesthesiology machine The disclosed embodiments include a compression fitting, which creates an airtight seal between walls of the tracheal tube and components of the compression fitting, thus allowing air to flow to and from a patient. | 02-03-2011 |
| 20110015507 | SYSTEM AND METHOD FOR MEMORY SWITCHING FOR MULTIPLE CONFIGURATION MEDICAL SENSOR - A system is provided that includes a monitor, a multiple configuration sensor having a first configuration and a second configuration, and a sensor connector. The sensor connector includes a first memory device and a second memory device, such that the first memory device is accessible by the monitor in the first sensor configuration and the second memory device is accessible by the monitor in the second sensor configuration. Another system is provided that includes a sensor adaptor having a processing circuit that reads a memory of a multiple configuration sensor and provides a first set of calibration data of a first sensor configuration and a second set of calibration data for a second sensor configuration. | 01-20-2011 |
| 20110011400 | WIRELESS, GAS FLOW-POWERED SENSOR SYSTEM FOR A BREATHING ASSISTANCE SYSTEM - A breathing assistance system for providing breathing assistance to a patient includes a gas delivery system configured to generate a gas flow, a patient interface configured to interface with the patient, a connection system connected between the gas delivery system and the patient interface and configured to communicate the gas flow to the patient interface for delivery to the patient, and a sensor system remote from the gas delivery system and connected to at least one of the patient interface and the connection system. The sensor system may include a sensor for measuring a parameter, one or more actuators, and a power supply based on a turbine configured to be driven by the gas flow and an electrical generator coupled to the turbine and configured to generate electricity. | 01-20-2011 |
| 20110009723 | FOREHEAD SENSOR PLACEMENT - Forehead oximetry sensor devices and methods for determining physiological parameters using forehead oximetry sensors. One method includes placing an oximetry sensor on the forehead of a patient, such that the sensor is placed on the lower forehead region, above the eyebrow with the sensor optics placed lateral of the iris and proximal the temple; and operating the pulse oximeter to obtain the physiological parameter. In one aspect, the method also includes providing and placing a headband over the oximetry sensor, or alternately, the sensor is a headband-integrated sensor. The headband has an elastic segment sized to fit around the patient's head. The headband also includes a non-elastic segment that is smaller than and attached with the elastic segment. The non-elastic segment is sized to span a portion of the elastic segment when the elastic segment is stretched. In addition, the non-elastic segment is larger than the portion of the elastic segment it spans when the elastic segment is not stretched. When the headband or the headband-integrated sensor is sufficiently tight, it delivers a pressure in the range higher than the venous pressure and lower than the capillary pressure to the forehead of the patient. | 01-13-2011 |
| 20110009722 | Historical Trend Icons For Physiological Parameters - Embodiments relate to systems and methods for displaying graphical icons representing a detected medical condition or a sensor fault. Specifically, embodiments of relate to a monitoring system that includes a sensor configured to obtain a physiologic signal from a patient, and a monitor communicatively coupled to the sensor and configured to receive the signal. In an embodiment, the monitor includes a processor adapted to compute physiological data based on the signal and identify a pattern in the physiological data, wherein the pattern relates to a condition of the patient, the sensor, or the monitor. In an embodiment, the processor also selects a graphical icon indicative of the pattern and provides the selected icon to a display. | 01-13-2011 |
| 20100331640 | USE OF PHOTODETECTOR ARRAY TO IMPROVE EFFICIENCY AND ACCURACY OF AN OPTICAL MEDICAL SENSOR - A system and method for determining physiological parameters of a patient based on light transmitted through the patient. The light may be transmitted via an emitter and received by a detector array that includes a plurality of detector elements. The emitter and the detector may both be located on a flexible substrate. | 12-30-2010 |
| 20100331638 | REFLECTANCE AND/OR TRANSMISSIVE PULSE OXIMETER - According to various embodiments, a medical sensor assembly may be configured to switch between transmission and reflectance mode. Such sensors may include multiple optical sensing components that may be activated or silent, depending on the mode in use. A practitioner may switch between modes based on the particular situation of the patient or based on the signal quality. | 12-30-2010 |
| 20100331631 | OXYGEN SATURATION EAR SENSOR DESIGN THAT OPTIMIZES BOTH ATTACHMENT METHOD AND SIGNAL QUALITY - A system is provided that includes an ear sensor and an external device. The ear sensor includes a sensing component with sensors for sensing various physiological parameters. The ear sensor also includes a retaining component configured to retain the ear sensor to the ear of a wearer. As the retaining component retains the ear sensor to the ear, the sensing component may be configured to have an optimal surface contact between the sensors and the ear tissue, such that an improved physiological signal may be obtained. In some embodiments, the improved physiological signal may result in physiological data, which may be displayed and organized in the external device. | 12-30-2010 |
| 20100328034 | System and Method for Controlling One or Both of Sensor Functionality and Data Access Based on Biometrics Data - The present disclosure is generally directed to maintaining sensor quality standards and/or preventing improper remanufacture of sensors, such as pulse oximetry sensors. Present embodiments may include a system for facilitating the monitoring of physiologic conditions that includes a biometric measurement device configured to translate a unique biological feature of a patient into electronic data, a memory device configured to receive and store the electronic data after an initial reading of the unique biological feature by the biometric measurement device, and a processor configured limit access to the memory based on whether the biometric measurement device provides subsequent electronic data matching the electronic data from the initial reading. | 12-30-2010 |
| 20100327063 | SYSTEM AND METHOD FOR PROVIDING SENSOR QUALITY ASSURANCE - The present disclosure is generally directed to maintaining sensor quality standards and/or preventing improper remanufacture of sensors, such as pulse oximetry sensors. Present embodiments may include a sensor that includes an optical machine-readable representation of data included on the sensor and/or packaged therewith, and an information element configured to store data corresponding to the data represented by the optical machine-readable representation. | 12-30-2010 |
| 20100327057 | SYSTEM AND METHOD FOR LINKING PATIENT DATA TO A PATIENT AND PROVIDING SENSOR QUALITY ASSURANCE - The present disclosure is generally directed to maintaining sensor quality standards and/or preventing improper remanufacture of sensors, such as pulse oximetry sensors. Present embodiments may include a system for facilitating the monitoring of physiologic conditions that includes an optical reader configured to translate an optical machine-readable representation of data associated with a patient into electronic data, a memory device configured to receive and store the electronic data after an initial reading of the machine-readable representation of data by the optical reader, and a processor configured to associate the electronic data with historical data obtained from the patient and limit access to the historical data based on whether the optical reader provides matching electronic data based on a subsequently read optical machine-readable representation of data when predefined conditions are met. | 12-30-2010 |
| 20100326446 | TRACHEAL TUBE WITH LUMEN FOR TRACHEAL PRESSURE MEASUREMENT AND TECHNIQUE FOR USING THE SAME - According to various embodiments, a tracheal tube may include a pressure monitoring lumen configured to provide information related to the pressure in the tracheal space. By measuring pressure in the lumen, a tracheal pressure may be estimated. The pressure monitoring lumen may be in fluid communication with a pressure transducer that provides pressure measurements. An opening of the lumen may be covered with a distal shoulder of an inflatable cuff. | 12-30-2010 |
| 20100323048 | CUFF FOR USE WITH MEDICAL TUBING AND METHOD AND APARATUS FOR MAKING THE SAME - A method of manufacturing more than one inflatable cuff per blow molding operation is provided. The method includes using two or more molds arranged in series and/or in parallel to simultaneously form two or more cuffs. The two or more cuffs may then be used in the manufacture of two or more respective endotracheal tubes. Apparatuses and systems for simultaneously forming the two or more cuffs are also provided. | 12-23-2010 |
| 20100319703 | TRACHEAL TUBE WITH LUMEN FOR TRACHEAL PRESSURE MEASUREMENT AND TECHNIQUE FOR USING THE SAME - According to various embodiments, a tracheal tube may include a pressure monitoring lumen configured to sample the gases in the tracheal space. The pressure monitoring lumen may be in fluid communication with a pressure transducer that provides pressure measurements. An opening of the lumen may be covered with a porous membrane that allow gas to diffuse freely in and out of the lumen, but that prevents secretions from clogging the lumen. | 12-23-2010 |
| 20100319702 | METHOD AND SYSTEM FOR DETERMINING TRACHEAL AND LOCATION INFORMATION FOR A TRACHEAL TUBE - According to various embodiments, a tracheal tube may include signal sources for providing information at various locations on the tube or in an inflated cuff The signals from the signal sources may be triangulated to determine the location of the tube in relation to a reference point on the body. The location information may provide an indication as to whether or not the tracheal tube is properly placed within the trachea. | 12-23-2010 |
| 20100313896 | SELF-SIZING ADJUSTABLE ENDOTRACHEAL TUBE - There is disclosed an endotracheal tube which has a minimal cross-sectional profile for easy viewing of anatomical features during intubation. After the tube is placed into the trachea, the tube is adapted to increase the diameter. In this manner the tube diameter may be expanded to allow for decreased Work of Breathing (WOB) for patient, while not having so large a diameter as to cause tracheal discomfort. | 12-16-2010 |
| 20100313895 | SELF-SIZING ADJUSTABLE ENDOTRACHEAL TUBE - There is disclosed an endotracheal tube which has a minimal cross-sectional profile for easy viewing of anatomical features during intubation. After the tube is placed into the trachea, the tube is adapted to increase the diameter. In this manner the tube diameter may be expanded to allow for decreased Work of Breathing (WOB) for patient, while not having so large a diameter as to cause tracheal discomfort. | 12-16-2010 |
| 20100313894 | SELF-SIZING ADJUSTABLE ENDOTRACHEAL TUBE - There is disclosed an endotracheal tube which has a minimal cross-sectional profile for easy viewing of anatomical features during intubation. After the tube is placed into the trachea, the tube is adapted to increase the diameter. In this manner the tube diameter may be expanded to allow for decreased Work of Breathing (WOB) for patient, while not having so large a diameter as to cause tracheal discomfort. | 12-16-2010 |
| 20100307508 | ENDOTRACHEAL TUBE WITH DEDICATED EVACUATION PORT - Various embodiments of a tracheal tube capable of suctioning accumulated mucus secretions from the airway of intubated patients are provided. Disclosed embodiments include a variety of endrotracheal tubes with integral suction lumens terminating in ports optimally located at the distal end of the endrotracheal tubes between a Murphy's Eye and a cuff. During intubation, the foregoing features, among others, of the tracheal tube may have the effect of preventing bacterial colonization of the respiratory airway and the subsequent development of ventilator associated pneumonia (VAP) in the lungs. | 12-09-2010 |
| 20100307507 | POINT-OF-CARE PATHOGEN MONITORING DEVICES AND SYSTEMS - Various embodiments of a secretion collection and/or sample analysis device are provided for point-of-care collection and/or analysis of secretions collected from the airways of intubated patients. The disclosed embodiments include a variety of placements of the device with respect to a tracheal tube that include in a secretion reservoir, between an evacuation conduit and the secretion reservoir, and connected in series after the evacuation conduit and the secretion reservoir. Certain embodiments may include a lab-on-a-chip device that analyzes secretions via polymerase chain reaction (PCR) based DNA sequencing. | 12-09-2010 |
| 20100300446 | SYSTEMS AND METHODS FOR PROTECTING COMPONENTS OF A BREATHING ASSISTANCE SYSTEM - A breathing assistance system includes a gas delivery system that generates a gas flow, a fluid source (e.g., a humidifier system or supplemental gas supply) located downstream from the gas delivery system that humidifies the gas flow generated by the gas delivery system, a gas flow conduit system for communicating the gas flow from the gas delivery system, and a flow regulation device. The flow regulation device is physically moveable between (a) an operational position that allows the gas flow generated by the gas delivery system to flow downstream past the flow regulation device via the gas flow conduit system, and (b) a protection position that prevents gasses and liquids flowing upstream through the gas flow conduit system from reaching the gas delivery system, and instead directs such gasses and liquids through an exhaust opening in the gas flow conduit system. The flow regulation device automatically moves between the operational position and the protection position based at least on a gas pressure upstream of the flow regulation device. | 12-02-2010 |
| 20100298678 | Method And System For Self Regulation Of Sensor Component Contact Pressure - A method and system for regulating contact pressure of a sensor is provided. In accordance with an embodiment, a sensor includes a collapsible material capable of regulating the localized component contact pressure exerted on a tissue between a threshold which ensures proper contact between the sensing component and monitoring site but which minimizes incidents of excessive localized pressures which could result in tissue damage over prolonged use. This localized contact pressure range is maintained over a wide range of sensor application pressures. In one embodiment, a window is provided in the sensor and a colorimetric indication of the compression or expansion of the collapsible material may be determined through the window. | 11-25-2010 |
| 20100292548 | Method And Apparatus For Detecting And Analyzing Variations In A Physiologic Parameter - The present disclosure is generally directed to identifying and/or analyzing high resolution variations in a measured physiologic parameter, such as blood oxygen saturation (SpO | 11-18-2010 |
| 20100288283 | DYNAMIC ADJUSTMENT OF TUBE COMPENSATION FACTOR BASED ON INTERNAL CHANGES IN BREATHING TUBE - This disclosure describes systems and methods for adjusting a determination of the amount of breathing assistance a patient requires while on a ventilator. In general, in determining the amount of breathing assistance required, the ventilator takes into account an airflow resistance attributable to the tube used to deliver ventilation to the patient's lungs. A tube compensation factor is calculated using a tube compensation algorithm, or similar equation. In particular, the tube compensation factor represents the resistance to airflow attributable to the breathing tube itself based on, inter alia, frictional drag, turbulence, and an internal diameter of the tube. Changes in the tube during ventilation impact the calculation of the breathing assistance required by the patient and are accounted for when compensating for the breathing tube. | 11-18-2010 |
| 20100280362 | TIME OF FLIGHT BASED TRACHEAL TUBE PLACEMENT SYSTEM AND METHOD - According to various embodiments, a tracheal tube may employ optical sensing techniques for determining a distance between the inserted tube and an anatomical structure, such as a carina. The distance information may provide an indication as to whether or not the tracheal tube is properly placed within the trachea. The optical techniques may include time of flight techniques. | 11-04-2010 |
| 20100261996 | MEDICAL DEVICE AND TECHNIQUE FOR USING SAME - According to various embodiments, a tracheal tube may employ optical sensing techniques for determining a distance between the inserted tube and an anatomical structure, such as a carina. The distance information may provide an indication as to whether or not the tracheal tube is properly placed within the trachea. The optical techniques may include backscattered intensity measurements. | 10-14-2010 |
| 20100261995 | MEDICAL DEVICE AND TECHNIQUE FOR USING THE SAME - According to various embodiments, a tracheal tube may employ optical sensing techniques for determining a distance between the inserted tube and an anatomical structure such as a carina. The distance information may provide an indication as to whether or not the tracheal tube is properly placed within the trachea. The optical techniques may include interferometry. | 10-14-2010 |
| 20100261986 | MOTION COMPATIBLE SENSOR FOR NON-INVASIVE OPTICAL BLOOD ANALYSIS - A non-invasive optical sensor which uses the motion signal to calculate the physiological characteristic being measured. For pulse oximetry, a least squares or a ratio-of-ratios technique can be applied to the motion signal itself. This is made possible by selecting a site on the patient where variations in motion produce signals of two wavelengths which are sufficiently correlated. In particular, it has been determined that a sensor placed on a nail, in particular a thumbnail, exhibits the characteristics of having the red and infrared signals correlated when used for pulse oximetry, and the resulting signals correlate to arterial oxygen saturation. | 10-14-2010 |
| 20100258134 | ENDOTRACHEAL TUBE HAVING IMPROVED SUCTION LUMEN - A surgical/medical tube such as an endotracheal tube | 10-14-2010 |
| 20100249557 | MEDICAL SENSOR WITH FLEXIBLE COMPONENTS AND TECHNIQUE FOR USING THE SAME - According to various embodiments, a hat-based or headband sensor assembly may include thin or flexible optical sensing components, such as optical fibers or ultra thin emitters or detectors. In embodiments, the sensor assembly may be a hat-based sensor that includes a gripping region, for example on the inside of the hat band, to help secure the hat to a patient's head. | 09-30-2010 |
| 20100249554 | MEDICAL SENSOR WITH COMPRESSIBLE LIGHT BARRIER AND TECHNIQUE FOR USING THE SAME - According to various embodiments, a medical sensor assembly may include compressible light barriers configured to prevent undesired light from being detected. The compressible light barriers may protrude from the surface of the sensor. However, when applied to the tissue, the compressible light barriers may be compressed to the point of being substantially flush with the tissue. | 09-30-2010 |
| 20100249553 | Electroadhesive Medical Devices - A method and system for attaching medical devices to a patient are provided. In accordance with an embodiment, a medical device is formed with or is coupled to an attachment structure including a plurality of electrodes capable of generating differential voltages at adjacent electrodes, to thereby provide electrostatic adhesion with the tissue of a patient. In an embodiment, the attachment structure includes an insulative material between the respective electrodes of the plurality of electrodes. | 09-30-2010 |
| 20100249552 | System And Method For Wirelessly Powering Medical Devices - A system and method for the wirelessly charging of a power source of a pulse oximeter. The pulse oximeter may include an inductively coupled conductor. The inductively coupled conductor may be coupled to the power source and the inductively coupled conductor may wirelessly receive an electromagnetic charging signal. Based on the received signal, the inductively coupled conductor may at least partially recharge the power source. | 09-30-2010 |
