Leadless monitoring of physiological conditions

Details Leadless monitoring of physiological conditions Leadless monitoring of physiological conditions

1998-05-20

2000-10-17

Hindenburg, Max

Surgery

Diagnostic testing

A61B 500

Patent

active

061323713

ABSTRACT:
A signal representing a physiological condition of a patient is used to modulate an electromagnetic signal received by a transponder so that a modulated electromagnetic signal representative of the signal is re-radiated by the transponder. The transponder includes an antenna and a diode coupled between the antenna and ground. Changing states of a digital signal from an analog-to digital converter that receives an input from a physiological transducer cause the diode to selectively conduct, which causes the impedance of the antenna to change accordingly. The re-radiated electromagnetic signal is demodulated to recover the digital signal, and the output signal of the transducer is recovered and may be displayed to a user and otherwise processed and/or stored.

REFERENCES:
patent: 4635296 (1987-01-01), Dinsmore
patent: 4827943 (1989-05-01), Bornn et al.
patent: 5322034 (1994-06-01), Willham et al.
patent: 5445150 (1995-08-01), Dumoulin et al.
patent: 5499626 (1996-03-01), Willham et al.
patent: 5704352 (1998-01-01), Tremblay et al.
California Institute of Technology, Jet Propulsion Laboratory, 9 pages, first page includes "Phase I: Develop Proof of Concept; Phase II: Prepare and Field Test a Prototype Model; Phase III: Assist in the Development of the Commercial Prototype System and Assist in an Installation in a Local Jail Facility" (date unknown).
California Institute of Technology, Jet Propulsion Laboratory Technology Report, 19 pages, "Person-Locater System Based on Wristband Radio Transponders" (Dec., 1995).
Ishak, Waguih S. et al., "Surface-Acoustic-Wave Delay Lines and Transversal Filters," Hewlett Packard Journal, pp. 3-27 (Dec., 1981).
NASA Tech Briefs (MSC-21501), 15 pages, "Biomedical Telectrodes" (1988).
Viewgraphs re: Backscatter Technology, 18 pages, first page titled "Infostation System Architecture," private communication from Wireless Information Network Laboratory (WINLAB), Rutgers University, NJ (date unknown).
Johnston, Ronald H. et al., University of Calgary, "A Biotelemetry System for Monitoring Heart Rates in Unrestrained Ungulates," Biotelemetry Patient Montig 7, pp 188-198 (1980).
Seals J. et al., Georgia Institute of Technology, 8 pages, "An Electromagnetic-Based Non-Contact Vital Signs Monitor," (date unknown).
Sugiura, T. et al., "Microcomputer-Based Telemetry System for Heart Rate and Blood Temperature in Dogs," pp. 551-567 (date unknown).

Affiliated with

Also associated with

Rating

Leadless monitoring of physiological conditions does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Leadless monitoring of physiological conditions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Leadless monitoring of physiological conditions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-463568