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| Number | Title | Issue Date |
| 7522949 | Sensor with signature of data relating to sensor A sensor has codes useful for a monitor which can be authenticated as accurate. The sensor produces a signal corresponding to a measured physiological characteristic and provides codes which can be assured of being accurate and authentic when used by a monitor. A me... | 04/21/2009 |
| 7392075 | Method for enhancing pulse oximetry calculations in the presence of correlated artifacts A method for determining a physiological parameter in the presence of correlated artifact, including obtaining two digital waveforms, x and y, the waveforms being representative of the absorption of two wavelengths of electromagnetic energy received from a blood-per... | 06/24/2008 |
| 7369757 | Systems and methods for regulating power in a medical device A system for controlling a motor for use in a ventilation system may include a motor, a voltage adjustment system, a user interface, and a motor controller. The voltage adjustment system may be configured to adjust a voltage applied to the motor. The user interface ... | 05/06/2008 |
| 7321790 | Shunt barrier in pulse oximeter sensor A pulse oximeter sensor comprising an emitter and a detector disposed on a substrate layer with a thinned portion between the emitter and the detector. A partially transparent covering layer covers the substrate layer and comprises a corresponding thinned portion. T... | 01/22/2008 |
| 7289837 | 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... | 10/30/2007 |
| 7277741 | Pulse oximetry motion artifact rejection using near infrared absorption by water A method and an apparatus for measuring a physiological parameter, functioning based on obtaining a first signal derived from electromagnetic energy transmitted through a tissue portion at a first wavelength, the first signal including a signal portion corresponding... | 10/02/2007 |
| 7270126 | Ventilator breath display and graphic user 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 graphi... | 09/18/2007 |
| 7260425 | 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... | 08/21/2007 |
| 7239902 | Device and method for monitoring body fluid and electrolyte disorders Devices and methods for measuring body fluid-related metric using spectrophotometry that may be used to facilitate diagnosis and therapeutic interventions aimed at restoring body fluid balance. In one embodiment, the present invention provides a device for measuring... | 07/03/2007 |
| 7236811 | Device and method for monitoring body fluid and electrolyte disorders A device and a method for measuring body fluid-related metrics using spectrophotometry to facilitate therapeutic interventions aimed at restoring body fluid balance. The specific body fluid-related metrics include the absolute volume fraction of water in the extrava... | 06/26/2007 |
| 7228161 | Temperature indicating oximetry sensor A pulse oximetry sensor having a temperature indicator and a method of operating such a sensor to visually indicate to an operator the temperature of the sensor and hence a measure of the temperature of the tissue location to which the sensor is attached. In one emb... | 06/05/2007 |
| 7209774 | Pulse oximeter with separate ensemble averaging for oxygen saturation and heart rate The use of two separate ensemble averagers for processing a detected waveform for use in calculating oxygen saturation and a pulse rate. The ensemble averager used for calculating oxygen saturation operates on a signal which has been normalized, while the ensemble a... | 04/24/2007 |
| 7194293 | Selection of ensemble averaging weights for a pulse oximeter based on signal quality metrics A method and a system for ensemble averaging signals in a pulse oximeter, including receiving first and second electromagnetic radiation signals from a blood perfused tissue portion corresponding to two different wavelengths of light, obtaining an assessment of the ... | 03/20/2007 |
| 7190984 | Shunt barrier in pulse oximeter sensor A pulse oximeter sensor having an emitter(s) and a detector, with a layer having a first portion of the emitter and a second portion of layer over the detector is provided. A barrier is included between the first and second portions of the overlying layer to substan... | 03/13/2007 |
| 7162288 | Techniques for detecting heart pulses and reducing power consumption in sensors Low power techniques for sensing cardiac pulses in a signal from a sensor are provided. A pulse detection block senses the sensor signal and determines its signal-to-noise ratio. After comparing the signal-to-noise ratio to a threshold, the drive current of light em... | 01/09/2007 |
| 7130671 | Pulse oximeter sensor off detector In a system for measuring a physiological parameter using at least one wavelength of electromagnetic energy transmitted through living tissue, a method for determining an operational status of the system. The method includes receiving a data signal from at least one... | 10/31/2006 |
| 7123950 | Nuisance alarm reductions in a physiological monitor A method and apparatus for controlling alarms in a medical diagnostic apparatus where an alarm is generated when a measured value for a physiological parameter is outside a specified range. The method continuously calculates a baseline value, and establishes dynamic... | 10/17/2006 |
| 7117438 | Graphic user interface for a patient ventilator 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, as well as for entering values for v... | 10/03/2006 |
| 7113815 | Stacked adhesive optical sensor An optical sensor having a cover layer, an emitter disposed on a first side of the cover, a detector disposed on the first side of said cover, and a plurality of stacked independent adhesive layers disposed on the same first side of the cover, wherein the top most e... | 09/26/2006 |
| 7096868 | Laryngeal airway device A laryngeal airway device, having an airway tube which has an internal passage in the airway tube wall for receiving a cuff inflation line, and a dome having an inlet and an outlet, where the dome is connected at its inlet with the distal end of the airway tube. The... | 08/29/2006 |
| RE39225 | System and method for adjustable disconnection sensitivity for disconnection and occlusion detection in a patient ventilator The system and method for detecting disconnection and occlusion of a tubing system of a patient ventilator detects disconnection of the tubing system, opens the exhalation valve, delivers an idle flow of breathing gas to the tubing system, disables breath triggering... | 08/08/2006 |
| 7079880 | Blind source separation of pulse oximetry signals A method and apparatus for the application of Blind Source Separation (BSS), specifically independent Component Analysis (ICA) to mixture signals obtained by a pulse oximeter sensor. In pulse oximetry, the signals measured at different wavelengths represent the mixt... | 07/18/2006 |
| 7047056 | Hat-based oximeter sensor A method for use and an improved oximeter sensor substrate that is conforming to the shape of the patient's forehead. In one embodiment, the present invention is an oximeter sensor, having a substrate with a shape similar to a shape of at least a portion of a patien... | 05/16/2006 |
| 7039538 | Pulse oximeter with separate ensemble averaging for oxygen saturation and heart rate The use of two separate ensemble averagers for processing a detected waveform for use in calculating oxygen saturation and a pulse rate. The ensemble averager used for calculating oxygen saturation operates on a signal which has been normalized, while the ensemble a... | 05/02/2006 |
| 7036504 | Ventilator breath display and graphic user 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 graphi... | 05/02/2006 |
| 7016715 | Selection of preset filter parameters based on signal quality Methods and devices for reducing noise effects in a system for measuring a physiological parameter, including receiving an input signal; obtaining an assessment of the signal quality of the input signal; selecting coefficients for a digital filter using the assessme... | 03/21/2006 |
| 7006856 | Signal quality metrics design for qualifying data for a physiological monitor A method and a device for determining the quality of signal used for measuring a physiological parameter. One embodiment of the present invention is directed towards a pulse oximeter, where the measured physiological parameter includes a patient's pulse rate and blo... | 02/28/2006 |
| 6972000 | Manual/auto-prime air eliminator A vent system for an infusion drip chamber is provided according to the invention. The vent system includes an automatic air eliminator communicating with an interior and an exterior of the infusion drip chamber. The automatic air eliminator is capable of automatica... | 12/06/2005 |
| 6845256 | 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... | 01/18/2005 |
| 6839579 | Temperature indicating oximetry sensor A pulse oximetry sensor having a temperature indicator and a method of operating such a sensor to visually indicate to an operator the temperature of the sensor and hence a measure of the temperature of the tissue location to which the sensor is attached. In one emb... | 01/04/2005 |
| 6836679 | Method and apparatus for estimating physiological parameters using model-based adaptive filtering A method and apparatus for reducing the effects of noise on a system for measuring physiological parameters, such as, for example, a pulse oximeter. The method and apparatus of the invention take into account the physical limitations on various physiological paramet... | 12/28/2004 |
| 6819687 | Non-imaging optical corner turner The present invention provides a device and method to efficiently turn light from an optical fiber around a corner while avoiding the frustrated-TIR loss that would occur if the fiber were bent. The invention uses non-imaging optics which efficiently deal with beam ... | 11/16/2004 |
| 6801797 | Pulse oximeter sensor with piece-wise function A memory in a sensor is used to store multiple coefficients for a physiological parameter. In one embodiment, not only are the sensor's specific calibration coefficients stored in a memory in the sensor for the formula to determine oxygen saturation, but multiple se... | 10/05/2004 |
| 6763255 | Shunt barrier in pulse oximeter sensor A pulse oximeter sensor having an emitter(s) and a detector, with a layer having a first portion of the emitter and a second portion of layer over the detector is provided. A barrier is included between the first and second portions of the overlying layer to substan... | 07/13/2004 |
| 6754516 | Nuisance alarm reductions in a physiological monitor A method and apparatus for controlling alarms in a medical diagnostic apparatus where an alarm is generated when a measured value for a physiological parameter is outside a specified range. The method continuously calculates a baseline value, and establishes dynamic... | 06/22/2004 |
| 6748254 | Stacked adhesive optical sensor An optical sensor having a cover layer, an emitter disposed on a first side of the cover, a detector disposed on the first side of said cover, and a plurality of stacked independent adhesive layers disposed on the same first side of the cover, wherein the top most e... | 06/08/2004 |
| 6739337 | System and method for transient response and accuracy enhancement for sensors with known transfer characteristics A parameter of interest being measured by a sensor is estimated from output response data from the sensor and the known transfer function of the sensor, allowing fast and accurate sensor data from sensors having a dynamic characteristic otherwise precluding assessme... | 05/25/2004 |
| 6725447 | System and method for graphic creation of a medical logical module in the arden syntax file format The system and method for graphic creation of a medical logical module in the Arden syntax file format allows a user to define a medical decision process in terms of flowcharts and outlines. The system and method provide for creation of a medical logical module for ... | 04/20/2004 |
| 6721584 | Method and apparatus for estimating physiological parameters using model-based adaptive filtering A method and apparatus for reducing the effects of noise on a system for measuring physiological parameters, such as, for example, a pulse oximeter. The method and apparatus of the invention take into account the physical limitations on various physiological paramet... | 04/13/2004 |
| 6708049 | Sensor with signature of data relating to sensor A sensor has codes useful for a monitor which can be authenticated as accurate. The sensor produces a signal corresponding to a measured physiological characteristic and provides codes which can be assured of being accurate and authentic when used by a monitor. A me... | 03/16/2004 |
