Patent application number | Description | Published |
20090171172 | METHOD AND SYSTEM FOR PULSE GATING - The present disclosure relates to the acquisition and use of an arterial pulse signal that may be used to synchronize the measurement of other physiological characteristics. In one embodiment, a sensor is provided that emits light toward a pulsing artery and detects the transmitted light to generate a signal representative of the amount of light detected. In another embodiment, a sensor is provided that acquires physiological data from a first emitter and first detector placed proximate to a perfused tissue site and acquires arterial pulse data from a second emitter and second detector placed proximate to an artery. Embodiments related to systems, tangible media, and methods of operation are also provided. | 07-02-2009 |
20090216096 | METHOD AND APPARATUS TO DETERMINE SKIN STEROL LEVELS - A method and apparatus is provided for measuring a sterol, such as cholesterol, deposited in the skin. Light of two or more wavelengths is emitted toward or into a skin sample and the light is differentially absorbed by the sterol in the skin sample. The differentially absorbed light is detected and the amount of sterol in the skin sample is determined based on the differential absorption. | 08-27-2009 |
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 |
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 |
20120238848 | SYSTEM AND METHOD FOR PRACTICING SPECTROPHOTOMETRY USING LIGHT EMITTING NANOSTRUCTURE DEVICES - Embodiments of the present invention relate to a system and method for practicing spectrophotometry using light emitting nanostructures. Specifically, embodiments of the present invention include a physiologic sensor comprising a sensor body configured for placement adjacent pulsatile tissue of a patient, a first light emitting nanostructure device configured to emit light at a first wavelength through the pulsatile tissue, a second light emitting nanostructure device configured to emit light at a second wavelength through the pulsatile tissue, and a light detector configured to detect the light at the first wavelength and the light at the second wavelength after dispersion through the pulsatile tissue. | 09-20-2012 |
20130146056 | METHOD AND SYSTEM FOR CLASSIFICATION OF PHOTO-PLETHYSMOGRAPHICALLY DETECTED RESPIRATORY EFFORT - Embodiments disclosed herein may include systems and methods for determining a patient's respiratory effort and blood oxygen saturation based on data acquired from a pulse oximetry sensor and analyzing the parameters in conjunction with each other. For example, the respiratory effort may be determined based on a photo-plethysmographic waveform generated from light attenuation detected by the sensor, and the blood oxygen saturation may be a pulse-based estimate of arterial blood oxygen saturation determined from the detected attenuation. Analysis of the parameters may enable detection and classification of apnea (e.g., obstructive or central) or another underlying cause for respiratory instability. Furthermore, the measured respiratory effort may be compared to respiratory effort supplied by a ventilator to ensure proper sensor placement before enabling automatic adjustment of ventilator settings. | 06-13-2013 |
20130261487 | CARBON DIOXIDE-SENSING AIRWAY PRODUCTS AND TECHNIQUE FOR USING THE SAME - An airway device is provided that may track the flow of respiratory gases through the device with sensing elements at a plurality of locations along the gas flow path of the device. Such a device may be useful for assessing a variety of clinical states, for adjusting patient ventilator settings, or for determining whether or not an airway device has been properly inserted into a patient airway. | 10-03-2013 |
20150246195 | METHOD AND SYSTEM FOR CLASSIFICATION OF PHOTO-PLETHYSMOGRAPHICALLY DETECTED RESPIRATORY EFFORT - Embodiments disclosed herein may include systems and methods for determining a patient's respiratory effort and blood oxygen saturation based on data acquired from a pulse oximetry sensor and analyzing the parameters in conjunction with each other. For example, the respiratory effort may be determined based on a photo-plethysmographic waveform generated from light attenuation detected by the sensor, and the blood oxygen saturation may be a pulse-based estimate of arterial blood oxygen saturation determined from the detected attenuation. Analysis of the parameters may enable detection and classification of apnea (e.g., obstructive or central) or another underlying cause for respiratory instability. Furthermore, the measured respiratory effort may be compared to respiratory effort supplied by a ventilator to ensure proper sensor placement before enabling automatic adjustment of ventilator settings. | 09-03-2015 |