PHYSIOLOGICAL MONITORING SYSTEM FEATURING FLOORMAT AND WIRED HANDHELD SENSOR
First Claim
1. A biometric sensor system configured to measure blood pressure, comprising:
- a generally flat Floormat configured to rest stably on a generally flat surface and to support the weight of a user standing thereon; and
a Handheld Sensor configured to be supported at a region of one of the user'"'"'s hands and being electrically connected to the Floormat via a cable member having one or more electrical conductors disposed therein, the Handheld Sensor including an arm-receiving portion configured to receive therein a distal portion of the user'"'"'s sensor-supporting arm and an inflatable cuff that is disposed at the arm-receiving portion and that is configured to receive and engage the distal portion of the user'"'"'s arm;
wherein the Floormat includes a microprocessor-based pressure-control inflation system including a pressure sensor that senses air pressure in the inflatable cuff;
an air pump; and
a valve, the pressure-control inflation system being configured and arranged to control inflation and deflation of the inflatable bladder and the air pump being connected to the inflatable cuff via a tube extending along the cable member to the inflatable cuff;
the biometric sensor system further comprising a first analog system located in the Floormat that is configured to receive signals from the pressure sensor and to process them to generate pressure signals; and
a processing system located in the Floormat, the processing system being configured
1) to issue computer commands to the pressure-control system to inflate and deflate the cuff while the first analog system generates the pressure signals, and
2) to analyze modulations in digital versions of the pressure signals to estimate the blood pressure value.
1 Assignment
0 Petitions
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.
-
Citations
34 Claims
-
1. A biometric sensor system configured to measure blood pressure, comprising:
-
a generally flat Floormat configured to rest stably on a generally flat surface and to support the weight of a user standing thereon; and a Handheld Sensor configured to be supported at a region of one of the user'"'"'s hands and being electrically connected to the Floormat via a cable member having one or more electrical conductors disposed therein, the Handheld Sensor including an arm-receiving portion configured to receive therein a distal portion of the user'"'"'s sensor-supporting arm and an inflatable cuff that is disposed at the arm-receiving portion and that is configured to receive and engage the distal portion of the user'"'"'s arm; wherein the Floormat includes a microprocessor-based pressure-control inflation system including a pressure sensor that senses air pressure in the inflatable cuff;
an air pump; and
a valve, the pressure-control inflation system being configured and arranged to control inflation and deflation of the inflatable bladder and the air pump being connected to the inflatable cuff via a tube extending along the cable member to the inflatable cuff;the biometric sensor system further comprising a first analog system located in the Floormat that is configured to receive signals from the pressure sensor and to process them to generate pressure signals; and a processing system located in the Floormat, the processing system being configured
1) to issue computer commands to the pressure-control system to inflate and deflate the cuff while the first analog system generates the pressure signals, and
2) to analyze modulations in digital versions of the pressure signals to estimate the blood pressure value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
-
-
18. A biometric sensor system configured to measure blood pressure, comprising:
-
a generally flat Floormat configured to rest stably on a generally flat surface and to support the weight of a user standing thereon; and a Handheld Sensor configured to be grasped with one of the user'"'"'s hands and being electrically connected to the Floormat via a cable member having one or more electrical conductors disposed therein, the Handheld Sensor including a grip member by means of which the user can grasp and support the Handheld Sensor; a wrist-receiving portion configured and located to receive therein the wrist of the user'"'"'s sensor-supporting arm while the user is supporting the Handheld Sensor, the wrist-receiving portion including an inflatable cuff that is configured to receive and engage the wrist of the user'"'"'s sensor-supporting arm; and a finger-receiving portion comprising an opening, configured and arranged to receive a finger of the hand with which the user supports the Handheld Sensor while the user is supporting 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 wherein the Floormat includes a microprocessor-based pressure-control inflation system including a pressure sensor that senses air pressure in the inflatable cuff;
an air pump; and
a valve, the pressure-control inflation system being configured and arranged to control inflation and deflation of the inflatable bladder and the air pump being connected to the inflatable cuff via a tube extending along the cable member to the inflatable cuff;the biometric sensor system further comprising a first analog system located in the Floormat that is configured to receive signals from the pressure sensor and to process them to generate analog pressure signals; a first digital system configured to digitize the analog pressure signals; a second analog system located in the Floormat that is configured to receive signals from the photodetector, via said one or more conductors, and to process them to generate a photoplethysmogram waveform comprising pulsatile signals; a second digital system configured to digitize the photoplethysmogram waveform; and a processing system located in the Floormat that is configured
1) to issue computer commands to the pressure-control system to inflate and deflate the cuff while the first analog system generates the pressure signals, and
2) to analyze modulations in digital versions of the pressure signals and the photoplethysmogram waveform to estimate the blood pressure value. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
-
Specification