| Patent application number | Description | Published |
|---|
| 20080220633 | MULTIPLE WAVELENGTH SENSOR INTERCONNECT - A sensor interconnect assembly has a circuit substrate. An emitter portion of the substrate is adapted to mount emitters. A detector portion of the substrate is adapted to mount a detector. A cable portion of the substrate is adapted to connect a sensor cable. A first group of conductors are disposed on the substrate electrically interconnecting the emitter portion and the cable portion. A second group of conductors are disposed on the substrate electrically interconnecting the detector portion and the cable portion. A decoupling portion of the substrate disposed proximate the cable portion substantially mechanically isolating the cable portion from both the emitter portion and the detector portion so that sensor cable stiffness is not translated to the emitters or the detector. | 09-11-2008 |
| 20080221418 | NONINVASIVE MULTI-PARAMETER PATIENT MONITOR - Embodiments of the present disclosure include a handheld multi-parameter patient monitor capable of determining multiple physiological parameters from the output of a light sensitive detector capable of detecting light attenuated by body tissue. For example, in an embodiment, the monitor is capable of advantageously and accurately displaying one or more of pulse rate, plethysmograph data, perfusion quality, signal confidence, and values of blood constituents in body tissue, including for example, arterial carbon monoxide saturation, methemoglobin saturation, total hemoglobin, arterial oxygen saturation, fractional arterial oxygen saturation, or the like. In an embodiment, the monitor advantageously includes a plurality of display modes enabling more parameter data to be displayed than the available physical display real estate. In an embodiment, the monitor advantageously includes a mode indicator to inform a user as to which parameter measurement would be displayed in one or more display areas upon actuation of a mode selector. | 09-11-2008 |
| 20080221464 | Perfusion trend indicator - A perfusion trend indicator inputs a plethysmograph waveform having pulses corresponding to pulsatile blood flow within a tissue site. Perfusion values are derived corresponding to the pulses. Time windows are defined corresponding to the perfusion values. Representative perfusion values are defined corresponding to the time windows. A perfusion trend is calculated according to differences between representative perfusion values of adjacent ones of the time windows. | 09-11-2008 |
| 20080228052 | Physiological trend monitor - A physiological trend monitor has a sensor signal responsive to multiple wavelengths of light transmitted into a tissue site. The transmitted light is detected after attenuation by pulsatile blood flow within the tissue site. A processor has an input responsive to the sensor signal and a physiological parameter output. Features are extracted from the physiological parameter output. Criteria are applied to the features. An alarm output is generated when the criteria are satisfied. | 09-18-2008 |
| 20080242958 | MULTIPLE WAVELENGTH OPTICAL SENSOR - A multiple wavelength optical sensor has an emitter configured to radiate light having a plurality of wavelengths into a tissue site. The emitter comprises a plurality of LEDs configured in an array and connected within an electrical grid. A detector is configured to receive the light after absorption by pulsatile blood flow within the tissue site. The detector generates a sensor signal capable of being processed by a patient monitor so as to derive oxygen saturation, carboxyhemoglobin, methemoglobin and total hemoglobin. | 10-02-2008 |
| 20080255435 | LOW NOISE OXIMETRY CABLE INCLUDING CONDUCTIVE CORDS - In an embodiment, one or more conductive cable cords are twisted with the sensitive signal carrying cables. The cords may advantageously comprise dummy wires, or very flexible hollow cables without an inner conductor. As the conductive cords do not carry and inner conductor, the conductive cords are individually flexible and small, resulting in a twisted bundle that more is flexible while potentially having a smaller outer diameter. | 10-16-2008 |
| 20080300471 | PHYSIOLOGICAL PARAMETER SYSTEM - A physiological parameter system has one or more parameter inputs responsive to one or more physiological sensors. The physiological parameter system may also have quality indicators relating to confidence in the parameter inputs. A processor is adapted to combine the parameter inputs, quality indicators and predetermined limits for the parameters inputs and quality indicators so as to generate alarm outputs or control outputs or both. | 12-04-2008 |
| 20090048495 | APPLICATION IDENTIFICATION SENSOR - An application identification sensor comprises a plurality of emitters configured to transmit light into a tissue site and a detector configured to receive the light after tissue absorption. The detector generates a signal responsive to the intensity of the light and communicates the signal to a monitor. An information element is readable by the monitor so as to identify a sensor application. The monitor presets at least one user-selectable operational parameter in response to the information element. | 02-19-2009 |
| 20090099423 | CONNECTOR ASSEMBLY - A connector assembly according to embodiments of the present disclosure is advantageously configured to allow a sensor connector to straightforwardly and efficiently join with and detach from a patient cable connector. Further, embodiments of the connector assembly advantageously reduce un-shielded area in an electrical connection between a patient cable and a sensor connector. In addition, embodiments of the connector assembly advantageously increase the shielding of detector signals coming from the patient sensor to the monitor. | 04-16-2009 |
| 20090099429 | SINE SATURATION TRANSFORM - A transform for determining a physiological measurement is disclosed. The transform determines a basis function index from a physiological signal obtained through a physiological sensor. A basis function waveform is generated based on basis function index. The basis function waveform is then used to determine an optimized basis function waveform. The optimized basis function waveform is used to calculate a physiological measurement. | 04-16-2009 |
| 20090112073 | PULSE OXIMETER PROBE-OFF DETECTOR - A processor provides signal quality based limits to a signal strength operating region of a pulse oximeter. These limits are superimposed on the typical gain dependent signal strength limits. If a sensor signal appears physiologically generated, the pulse oximeter is allowed to operate with minimal signal strength, maximizing low perfusion performance. If a sensor signal is potentially due to a signal induced by a dislodged sensor, signal strength requirements are raised. Thus, signal quality limitations enhance probe off detection without significantly impacting low perfusion performance. One signal quality measure used is pulse rate density, which defines the percentage of time physiologically acceptable pulses are occurring. If the detected signal contains a significant percentage of unacceptable pulses, the minimum required signal strength is raised proportionately. Another signal quality measure used in conjunction with pulse rate density is energy ratio, computed as the percentage of total energy contained in the pulse rate fundamental and associated harmonics. | 04-30-2009 |
| 20090137885 | PULSE OXIMETER ACCESS APPARATUS AND METHOD - Access is provided to certain pulse oximetry systems utilizing a keyed sensor and a corresponding locked sensor port of a restricted access monitor. In such systems, the keyed sensor has a key comprising a memory element, and the monitor has a memory reader associated with the sensor port. The monitor is configured to function only when the key is in communications with the locked sensor port, and the memory reader is able to retrieve predetermined data from the memory element. The monitor is accessed by providing the key separate from the keyed sensor, integrating the key into an adapter cable, and connecting the adapter cable between the sensor port and an unkeyed sensor so that the monitor functions with the unkeyed sensor. | 05-28-2009 |
| 20090204371 | VARIABLE INDICATION ESTIMATOR - A variable indication estimator which determines an output value representative of a set of input data. For example, the estimator can reduce input data to estimates of a desired signal, select a time, and determine an output value from the estimates and the time. In one embodiment, the time is selected using one or more adjustable signal confidence parameters determine where along the estimates the output value will be computed. By varying the parameters, the characteristics of the output value are variable. For example, when input signal confidence is low, the parameters are adjusted so that the output value is a smoothed representation of the input signal. When input signal confidence is high, the parameters are adjusted so that the output value has a faster and more accurate response to the input signal. | 08-13-2009 |
| 20090275844 | MONITOR CONFIGURATION SYSTEM - A monitor configuration system which communicates with a physiological sensor, the monitor configuration system including one or more processors and an instrument manager module running on the one or more processors. At least one of the one or more processors communicates with the sensor and calculates at least one physiological parameters responsive to the sensor. The instrument manager controls the calculation, display and/or alarms based upon the physiological parameters. A configuration indicator identifies the configuration profile. In one aspect of the invention, the physiological sensor is a optical sensor that includes at least one light emitting diode and at least one detector. | 11-05-2009 |
| 20090299157 | PULSE OXIMETRY SYSTEM WITH ELECTRICAL DECOUPLING CIRCUITRY - A pulse oximetry system for reducing the risk of electric shock to a medical patient can include physiological sensors, at least one of which has a light emitter that can impinge light on body tissue of a living patient and a detector responsive to the light after attenuation by the body tissue. The detector can generate a signal indicative of a physiological characteristic of the living patient. The pulse oximetry system may also include a splitter cable that can connect the physiological sensors to a physiological monitor. The splitter cable may have a plurality of cable sections each including one or more electrical conductors that can interface with one of the physiological sensors. One or more decoupling circuits may be disposed in the splitter cable, which can be in communication with selected ones of the electrical conductors. The one or more decoupling circuits can electrically decouple the physiological sensors. | 12-03-2009 |
| 20090306488 | PORTABLE PATIENT MONITOR - Embodiments of the present disclosure includes a portable pulse oximeter, such as a handheld pulse oximeter, that provides a user with intuitive key navigation for device operation, which reduces an amount of visual concentration needed to handle and operate the oximeter. In various embodiments, the portable pulse oximeter includes one or more of user input keys disposed along curve, an alignment edge providing guidance by feel of a user's digits to the input keys, raised convex keys also providing navigation by feel, a protective boot disposed around various portions of the oximeter housing to protect against impacts, a table-top stand, combinations of the same, or the like. | 12-10-2009 |
| 20100022859 | MULTIPLE WAVELENGTH SENSOR EMITTERS - A physiological sensor is adapted to removably attach an emitter assembly and a detector assembly to a fingertip. The emitter assembly is adapted to transmit optical radiation having multiple wavelengths into fingertip tissue. The detector assembly is adapted to receive the optical radiation after attenuation by the fingertip tissue. The sensor has a first shell and a second shell hinged to the first shell. A spring is disposed between the shells and urges the shells together. | 01-28-2010 |
| 20100049020 | MULTIPLE WAVELENGTH SENSOR EMITTERS - A physiological sensor is adapted to removably attach an emitter assembly and a detector assembly to a fingertip. The emitter assembly is adapted to transmit optical radiation having multiple wavelengths into fingertip tissue. The detector assembly is adapted to receive the optical radiation after attenuation by the fingertip tissue. The sensor has a first shell and a second shell hinged to the first shell. A spring is disposed between the shells and urges the shells together. An emitter pad is fixedly attached to the first shell and configured to retain the emitter assembly. A detector pad is fixedly attached to the second shell and configured to retain the detector assembly. A detector aperture is defined within the detector pad and adapted to pass optical radiation to the detector assembly. A contour is defined along the detector pad and generally shaped to conform to a fingertip positioned over the detector aperture. | 02-25-2010 |
| 20100069725 | PATIENT MONITOR INCLUDING MULTI-PARAMETER GRAPHICAL DISPLAY - A patient monitoring system and method are disclosed which provide a caregiver with more easily identifiable indications of the state of multiple physiological parameters in order to give the caregiver an indication of the patient's overall wellness in an efficient manner. Multiple physiological parameter sets are plotted on a graph, along with an indication of each parameter set's normal range. An overlapping area for all set's normal ranges provides an indication of an ideal patient state. In an embodiment, alerts are generated based on parameters distance from normal readings. | 03-18-2010 |
| 20100099964 | HEMOGLOBIN MONITOR - A patient monitor system is configured to measure and display a hemoglobin concentration measurement to assist caregivers in providing care or treatment and/or to automatically control a fluid, blood, medicine, or dialysis administration system. The patient monitor can analyze the displayed hemoglobin concentration measurement and provide alarms and feedback to assist caregivers. Additional measurement can be combined with the hemoglobin concentration measurement to provide combined displays helpful to caregivers, such as, for example, a plethysmograph variability index v. SpHb display. | 04-22-2010 |
| 20100228108 | CONFIGURABLE PHYSIOLOGICAL MEASUREMENT SYSTEM - A physiological measurement system has a sensor, a processor, a communications link and information elements. The sensor is configured to transmit light having a plurality of wavelengths into a tissue site and to generate a sensor signal responsive to the transmitted light after tissue attenuation. The attenuated light can be used by the system to determine a plurality of physiological measurements. The processor is configured to operate on the sensor signal so as to derive at least one physiological parameter after which of the plurality of physiological measurements the system is configured to or capable of measuring. | 09-09-2010 |
| 20100234718 | OPEN ARCHITECTURE MEDICAL COMMUNICATION SYSTEM - The present disclosure provides an open architecture communication system for patient monitoring devices and other patient care equipment. The open architecture of the present system allows devices running different operating systems and software to communicate correctly and efficiently with the care center network. One aspect of the system includes a patient monitoring virtual machine which allows patient monitoring devices and other patient care equipment to allow for communications with other devices on the network or other networks and automatic configuration of devices. Aspects of the system also provide for relocation of post-processing functions, arrangement of devices into domains, and/or management of devices using servers and other management systems. | 09-16-2010 |
| 20100241033 | DIGIT GAUGE FOR NONINVASIVE OPTICAL SENSOR - Embodiments of the present disclosure include a digit gauge used to ensure the size of a patient's digit is appropriate for the medical sensor applied thereto. | 09-23-2010 |
| 20100298675 | Hemoglobin Display and Patient Treatment - The present disclosure describes embodiments of a patient monitoring system and methods that include the measure and display of hemoglobin statistics. In an embodiment, total hemoglobin trending is displayed over a period of time. Statistics can include frequency domain analysis, which may be unique for each patient monitored. The total hemoglobin trending and/or statistics can further be used to help control the treatment of a patient, such as being used to control IV administration. | 11-25-2010 |
| 20110112799 | VARIABLE INDICATION ESTIMATOR - A variable indication estimator which determines an output value representative of a set of input data. For example, the estimator can reduce input data to estimates of a desired signal, select a time, and determine an output value from the estimates and the time. In one embodiment, the time is selected using one or more adjustable signal confidence parameters determine where along the estimates the output value will be computed. By varying the parameters, the characteristics of the output value are variable. For example, when input signal confidence is low, the parameters are adjusted so that the output value is a smoothed representation of the input signal. When input signal confidence is high, the parameters are adjusted so that the output value has a faster and more accurate response to the input signal. | 05-12-2011 |
