PHYSIOLOGICAL MONITORING SYSTEM FEATURING FLOORMAT AND WIRED HANDHELD SENSOR
First Claim
1. A biometric sensor system configured to measure a set of physiological parameters, comprising:
- a first device comprising a generally flat Floormat configured to rest stably on a generally flat surface and to support the weight of a user standing thereon, the Floormat including a first electrode disposed at an upper surface thereof and in position to make contact with the sole of one of the user'"'"'s feet when the user stands on the Floormat; and
a second device comprising a Handheld Sensor configured to be grasped by one of the user'"'"'s hands,the Handheld Sensor includinga second electrode disposed in position to make contact with skin in the region of the user'"'"'s hand when the Handheld Sensor is supported thereby; and
a finger-receiving portion comprising an opening, configured and arranged to receive a finger of the hand with which the user grasps the Handheld Sensor, and an optical system, the optical system comprising a first light source configured to irradiate the received finger and a photodetector configured to receive radiation after it irradiates the received finger; and
the Handheld Sensor being electrically connected to the Floormat via a cable having one or more electrical conductors disposed therein;
the biometric sensor system further comprising a first analog system configured to receive biometric signals from the first electrode and from the second electrode and to process the biometric signals to generate a first analog physiological waveform;
a second analog system configured to receive signals from the photodetector and to process them to generate a second analog physiological waveform;
a first digital system configured to digitize the first analog physiological waveform and to process it with computer code to determine a first physiological parameter in the set of physiological parameters;
and a second digital system configured to digitize the second analog physiological waveform and to process it with computer code to determine a second physiological parameter in the set of physiological parameters;
wherein the first analog system is located in one of the first and second devices and the electrode disposed in the other device is electrically connected to the first analog system by means of said one or more electrical conductors.
1 Assignment
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Accused Products
Abstract
A physiological monitoring system features a Floormat and Handheld Sensor connected by a cable. A user stands on the Floormat and grips the Handheld Sensor. These components measure time-dependent physiological waveforms from a user over a conduction pathway extending from the user'"'"'s hand or wrist to their feet. The Handheld Sensor and Floormat use a combination of electrodes that inject current into the user'"'"'s body and collect bioelectric signals that, with processing, yield ECG, impedance, and bioreactance waveforms. Simultaneously, the Handheld Sensor measures photoplethysmogram waveforms with red and infrared radiation and pressure waveforms from the user'"'"'s fingers and wrist, while the Floormat measures signals from load cells to determine ‘force’ waveforms to determine the user'"'"'s weight, and ballistocardiogram waveforms to determine parameters related to cardiac contractility. Processing these waveforms with algorithms running on a microprocessor yield the vital sign, hemodynamic, and biometric parameters.
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Citations
27 Claims
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1. A biometric sensor system configured to measure a set of physiological parameters, comprising:
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a first device comprising a generally flat Floormat configured to rest stably on a generally flat surface and to support the weight of a user standing thereon, the Floormat including a first electrode disposed at an upper surface thereof and in position to make contact with the sole of one of the user'"'"'s feet when the user stands on the Floormat; and a second device comprising a Handheld Sensor configured to be grasped by one of the user'"'"'s hands, the Handheld Sensor including a second electrode disposed in position to make contact with skin in the region of the user'"'"'s hand when the Handheld Sensor is supported thereby; and a finger-receiving portion comprising an opening, configured and arranged to receive a finger of the hand with which the user grasps the Handheld Sensor, and an optical system, the optical system comprising a first light source configured to irradiate the received finger and a photodetector configured to receive radiation after it irradiates the received finger; and the Handheld Sensor being electrically connected to the Floormat via a cable having one or more electrical conductors disposed therein; the biometric sensor system further comprising a first analog system configured to receive biometric signals from the first electrode and from the second electrode and to process the biometric signals to generate a first analog physiological waveform; a second analog system configured to receive signals from the photodetector and to process them to generate a second analog physiological waveform; a first digital system configured to digitize the first analog physiological waveform and to process it with computer code to determine a first physiological parameter in the set of physiological parameters; and a second digital system configured to digitize the second analog physiological waveform and to process it with computer code to determine a second physiological parameter in the set of physiological parameters; wherein the first analog system is located in one of the first and second devices and the electrode disposed in the other device is electrically connected to the first analog system by means of said one or more electrical conductors. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A biometric sensor system configured to measure a user'"'"'s blood pressure, comprising:
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a first device comprising a generally flat Floormat configured to rest stably on a generally flat surface and to support the weight of a user standing thereon, the Floormat including a first electrode disposed at an upper surface thereof and in position to make contact with the sole of one of the user'"'"'s feet when the user stands on the Floormat; and a second device comprising a Handheld Sensor configured to be grasped by one of the user'"'"'s hands, the Handheld Sensor comprising; a second electrode disposed in position to make contact with skin in the region of the user'"'"'s hand when the Handheld Sensor is supported thereby; and a finger-receiving portion comprising an opening, configured and arranged to receive a finger of the hand with which the user grasps the Handheld Sensor, and an optical system, the optical system comprising a first light source configured to irradiate the received finger and a photodetector configured to receive radiation after it irradiates the received finger; and the Handheld Sensor being electrically connected to the Floormat via a cable having one or more electrical conductors disposed therein; the biometric sensor system further comprising a first analog system configured to receive biometric signals from the first electrode and from the second electrode and to process the biometric signals to generate one of a bioimpedance and a bioreactance signal that, with further processing, yields a first time-dependent physiological waveform; a second analog system configured to receive signals from the photodetector and to process the signals from the photodetector to generate a second time-dependent physiological waveform; and a processing system including computer code configured to collectively process the first and second time-dependent physiological waveforms to determine the user'"'"'s blood pressure. - View Dependent Claims (24, 25, 26, 27)
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Specification