Patents Assigned to Nellcor Puritan Bennett, Inc.
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Publication number: 20070129614Abstract: 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 a body-tissue water content metric as a fraction of the fat-free tissue content of a patient using optical spectrophotometry. The device includes a probe housing configured to be placed near a tissue location which is being monitored; light emission optics connected to the housing and configured to direct radiation at the tissue location; light detection optics connected to the housing and configured to receive radiation from the tissue location; and a processing device configured to process radiation from the light emission optics and the light detection optics to compute the metric where the metric includes a ratio of the water content of a portion of patient's tissue in relation to the lean or fat-free content of a portion of patient's tissue.Type: ApplicationFiled: January 26, 2007Publication date: June 7, 2007Applicant: Nellcor Puritan Bennett Inc.Inventors: Joseph Schmitt, Martin Debreczeny
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Publication number: 20070088207Abstract: Embodiments of the present invention include systems and methods that relate to pulse oximetry. Specifically, one embodiment includes an oximeter sensor, comprising a light emitting element configured to emit light, a light detector configured to receive the light, and a memory device that stores digital data, the digital data comprising a time the oximeter sensor lost communication.Type: ApplicationFiled: June 2, 2006Publication date: April 19, 2007Applicant: Nellcor Puritan Bennett Inc.Inventors: Paul Mannheimer, Michael Fein, Marcia Fein
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Patent number: 7190986Abstract: The present invention provides non-adhesive oximeter sensors for patients with sensitive skin. Sensors of the present invention include a light emitting diode (LED) and a photodetector. The LED and the photodetector may be covered by a reflective mask and a faraday shield. Sensors of the present invention have a non-adhesive laminated layer. The non-adhesive layer contacts, but does not stick to, the patient's skin. When the sensor is removed from the patient, the non-adhesive layer does not tear or irritate the patient's skin. The non-adhesive layer preferably has a large static coefficient of friction. Sensors of the present invention can also have hook-and-loop layers. The sensor can be attached to the patient's body by wrapping the sensor around the patient and engaging the hook layer to the loop layer.Type: GrantFiled: October 18, 2002Date of Patent: March 13, 2007Assignee: Nellcor Puritan Bennett Inc.Inventors: Don Hannula, Paul D. Mannheimer
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Patent number: 7190985Abstract: A pulse oximeter method and apparatus which provides (1) a notch filter at a distance between a modulation frequency and a common multiple of commonly used power line frequencies (50, 60, 100 and 120) and also (2) a demodulation frequency greater than a highest pulse rate of a person and lower than any harmonic of 50, 60, 100 or 120 Hz, to filter ambient light interference, while choosing an optimum demodulation frequency that avoids interference from the notch filter or from harmonics of the line interference. Also, ambient light for any low frequency interference, such as power line interference, is measured both before and after each of the light emitter wavelengths and the average of the ambient light is then subtracted from the detected signal.Type: GrantFiled: February 25, 2004Date of Patent: March 13, 2007Assignee: Nellcor Puritan Bennett Inc.Inventors: Ethan Petersen, William Shea, Bradford B. Chew
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Publication number: 20070049810Abstract: Embodiments of the present invention include systems and methods that relate to pulse oximetry. Specifically, one embodiment includes an oximeter sensor, comprising a light emitting element configured to emit light, a light detector configured to receive the light, and a memory device that stores data, comprising an amount of wetness on the oximeter sensor.Type: ApplicationFiled: June 1, 2006Publication date: March 1, 2007Applicant: Nellcor Puritan Bennett Inc.Inventors: Paul Mannheimer, Michael Fein
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Publication number: 20070043277Abstract: Embodiments of the present invention include systems and methods that relate to pulse oximetry. Specifically, one embodiment includes an oximeter sensor comprising a light emitting element configured to emit light, a light detector configured to detect the light, and a memory storing an ambient light value for comparison with a detected ambient light measurement.Type: ApplicationFiled: June 2, 2006Publication date: February 22, 2007Applicant: Nellcor Puritan Bennett Inc.Inventors: Paul Mannheimer, Michael Fein, Marcia Fein
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Publication number: 20070043280Abstract: Embodiments of the present invention include systems and methods that relate to pulse oximetry. Specifically, one embodiment includes an oximeter sensor comprising a light emitting element configured to emit light, a light detector configured to detect the light, a resistor having a resistance value that is detectable by a monitor, and a memory storing a contact resistance value of a connector that is disposed between the monitor and the resistor when the monitor and the oximeter sensor are communicatively coupled.Type: ApplicationFiled: June 1, 2006Publication date: February 22, 2007Applicant: Nellcor Puritan Bennett Inc.Inventors: Paul Mannheimer, Michael Fein, Marcia Fein
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Publication number: 20070043282Abstract: Embodiments of the present invention include systems and methods that relate to pulse oximetry. Specifically, one embodiment includes an oximeter sensor comprising a light emitting element configured to emit light, a light detector configured to receive the light, and an accelerometer configured to detect motion of the oximeter sensor.Type: ApplicationFiled: June 2, 2006Publication date: February 22, 2007Applicant: Nellcor Puritan Bennett Inc.Inventors: Paul Mannheimer, Michael Fein, Marcia Fein
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Publication number: 20070043271Abstract: Embodiments of the present invention include systems and methods that relate to pulse oximetry. Specifically, one embodiment includes an oximeter sensor, comprising a light emitting element configured to emit light, a light detector configured to receive the light, and a memory device that stores data comprising drift parameters indicative of changes to operating properties of the oximeter sensor.Type: ApplicationFiled: June 1, 2006Publication date: February 22, 2007Applicant: Nellcor Puritan Bennett Inc.Inventors: Paul Mannheimer, Michael Fein, Marcia Fein
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Publication number: 20070043274Abstract: Embodiments of the present invention include systems and methods that relate to pulse oximetry. Specifically, one embodiment includes an oximeter sensor comprising a light emitting element configured to emit light, a light detector configured to detect the light a memory storing data, and a changeable encryption key to facilitate scrambling the data to make the data inaccessible to devices that are without an appropriate decryption mechanism.Type: ApplicationFiled: June 1, 2006Publication date: February 22, 2007Applicant: Nellcor Puritan Bennett Inc.Inventors: Paul Mannheimer, Michael Fein, Marcia Fein
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Publication number: 20070043273Abstract: Embodiments of the present invention include systems and methods that relate to pulse oximetry. Specifically, one embodiment includes an oximeter sensor comprising a light emitting element configured to emit light, a light detector configured to detect the light, and a memory storing an optical shunting measurement for the oximeter sensor.Type: ApplicationFiled: June 1, 2006Publication date: February 22, 2007Applicant: Nellcor Puritan Bennett Inc.Inventors: Paul Mannheimer, Michael Fein, Marcia Fein
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Publication number: 20070043269Abstract: Embodiments of the present invention relate to pulse oximeter systems and methods. Specifically, one embodiment includes an oximeter system including an oximeter sensor comprising a light emitting element configured to emit light having a wavelength, a light detector configured to receive the light, and a memory storing signal quality data that facilitates determining a quality of signals sent from the light emitting element to the light detector via the light. Further, the oximeter system may comprise an oximeter monitor, comprising a receiving circuit configured to receive the signal quality data from the oximeter sensor, and a processor configured to use the signal quality data to calculate an optical transmissivity of a material for the wavelength.Type: ApplicationFiled: June 1, 2006Publication date: February 22, 2007Applicant: Nellcor Puritan Bennett Inc.Inventors: Paul Mannheimer, Michael Fein
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Publication number: 20070043276Abstract: Embodiments of the present invention include systems and methods that relate to pulse oximetry. Specifically, one embodiment includes an oximeter sensor, comprising a light emitting element configured to emit light, a light detector configured to receive the light, and a pressure switch that is sensitive to pressure present due to placement of the sensor on a patient, the pressure switch having a status indicative of sensor contact with the patient.Type: ApplicationFiled: June 1, 2006Publication date: February 22, 2007Applicant: Nellcor Puritan Bennett Inc.Inventors: Paul Mannheimer, Michael Fein, Marcia Fein
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Publication number: 20070043270Abstract: Embodiments of the present invention include systems and methods that relate to pulse oximetry. Specifically, one embodiment includes an oximeter sensor comprising a light emitting element configured to emit light, a light detector configured to detect the light, and a memory chip having a built-in trimmed resistor, the trimmed resistor having a resistance value that is detectable by a monitor.Type: ApplicationFiled: June 1, 2006Publication date: February 22, 2007Applicant: Nellcor Puritan Bennett Inc.Inventors: Paul Mannheimer, Michael Fein, Marcia Fein
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Publication number: 20070043275Abstract: Embodiments of the present invention relate to a sensor for facilitating detection of a physiological characteristic of a patient. Specifically, one embodiment includes a detector configured to obtain signals from the patient, the signals being indicative of the physiological characteristic, an interface configured to send the signals to a monitor, and a sensor memory coupled with the sensor and separate from the monitor, the sensor memory storing sensor expiration data.Type: ApplicationFiled: June 1, 2006Publication date: February 22, 2007Applicant: Nellcor Puritan Bennett Inc.Inventors: Paul Manheimer, Michael Fein, Marcia Fein
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Publication number: 20070043279Abstract: Embodiments of the present invention include systems and methods that relate to pulse oximetry. Specifically, one embodiment includes an oximeter sensor, comprising, a light emitting element configured to emit light, a light detector configured to receive the light, and a probe configured to contact a patient and provide an indication of whether the oximeter sensor is in contact with the patient based on an impedance measurement.Type: ApplicationFiled: June 2, 2006Publication date: February 22, 2007Applicant: Nellcor Puritan Bennett Inc.Inventors: Paul Mannheimer, Michael Fein, Marcia Fein
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Publication number: 20070043272Abstract: Embodiments of the present invention include systems and methods that relate to pulse oximetry. Specifically, one embodiment includes an oximeter sensor, comprising a plurality of light emitting elements configured to emit light, a light detector configured to receive the light, and a memory device that stores code to determine which of the plurality of light emitting elements to use to emit the light.Type: ApplicationFiled: June 1, 2006Publication date: February 22, 2007Applicant: Nellcor Puritan Bennett Inc.Inventors: Paul Mannheimer, Michael Fein, Marcia Fein
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Publication number: 20070043278Abstract: Embodiments of the present invention include systems and methods that relate to pulse oximetry. Specifically, one embodiment includes an oximeter sensor comprising a light emitting element configured to emit light, a light detector configured to detect the light, and a memory storing values of skin temperature at which a motion signal algorithm can be accurately utilized.Type: ApplicationFiled: June 2, 2006Publication date: February 22, 2007Applicant: Nellcor Puritan Bennett Inc.Inventors: Paul Mannheimer, Michael Fein
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Publication number: 20070032714Abstract: 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 thresholds that are related to and continuously track the baseline value. The method determines the amount of time the measured value is past the dynamic threshold, and the amount by which the threshold is passed. Alarms are triggered based upon a combination of the amount of time and the amount by which the threshold is passed. Preferably, the combination is an integral or some function of an integral.Type: ApplicationFiled: October 16, 2006Publication date: February 8, 2007Applicant: Nellcor Puritan Bennett Inc.Inventor: Paul Mannheimer
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Patent number: 7172616Abstract: A method of performing cardiac surgery on a patient's heart, including covering a patient with an inflatable blanket for a forced air convection system, the inflatable blanket having at least one separable seal line within the blanket. The separable seal line may be separated to form a slit. A patient's femoral artery is accessed through the slit, and an elongate medical instrument is passed through the slit, and through the femoral artery toward the patient's heart. Cardiac surgery is performed with the elongate medical instrument, and the elongate medical instrument is withdrawn from the femoral artery through the slit.Type: GrantFiled: December 19, 2002Date of Patent: February 6, 2007Assignee: Nellcor Puritan Bennett Inc.Inventors: Wayne Schuessler, Karin Feit, Michael Vardanega, Dennis Chivetta, Thomas Kappel