U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Spread spectrum telemetry of physiological signals

Patent 5617871 Issued on April 8, 1997. Estimated Expiration Date: Icon_subject December 1, 2014. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

3409007

3606881

3727190

3810102

3882853

3927663

Apparatus for collecting medical data
Patent #: 3970996
Issued on: 07/20/1976
Inventor: Yasaka ,   et al.

Patient monitoring system
Patent #: 3972320
Issued on: 08/03/1976
Inventor: Kalman

Biophysical electrode
Patent #: 3989036
Issued on: 11/02/1976
Inventor: Sasamori

Self-adjustable holder for automatically positioning electroencephalographic electrodes
Patent #: 3998213
Issued on: 12/21/1976
Inventor: Price

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Inventor

Assignee

Application

No. 347750 filed on 12/01/1994

US Classes:

600/300, DIAGNOSTIC TESTING128/903, RADIO TELEMETRY600/509, Detecting heartbeat electric signal607/32, Communicating with pacer (e.g., telemetry)607/60Telemetry or communications circuits

Examiners

Primary: Kamm, William E.

Attorney, Agent or Firm

Foreign Patent References

  • 339471 EP. 11/13/1989

International Class

A61B 005/040.2

Abstract

A system for the transmission of physiological signals from a patient to a display analysis and/or recording device using a spread spectrum transmission technique to reduce interference with the detection of the transmitted physiological signal wherein multiple channels of the physiological signals are transmitted over a bandwidth of approximately 3 MHz.

Other References

  • J. Swanberg, "Spread-Spectrum UHF Encrypted-Command Patient Link," IEEE Engineering in Medicine & Biology Society 11th Annual International Conference, Nov. 9-12, 1989, 1391-1392 (4 pages)
  • Author unknown, "Sound Reasons for Radio-wave Links," HealthWeek, Sep. 23, 1991, p. 41 (2 pages)
  • Medical Data Electronics, "Escort-Link Central Station Model E3200B" Product Brochure, Jun. 1994 (2 pages)
  • G. J. Newton et al., "Use of Spread Spectrum Radio Technology for Networking Health Physics Instruments," Health Physics Society 36th Annual Meeting, Jul. 21-26, 1991, Abstracts of Papers Presented, TPM-A6, S30 (2 pages)
  • Proxim, "Spread Spectrum OEM RF Modem" Product Brochure, Jun. 1991 (2 pages) and accompanying letter from sales representative Robert Kroskrity, Apr. 2, 1992
  • Proxim, "ProxLink™ Radio Module" Product Brochure, Oct. 1991 (2 pages)
  • R. C. Dixon, Spread Spectrum Systems (2nd ed. 1984), Preface, pp. v-vii and ix
  • R.C. Dixon, Spread Spectrum Systems (2nd ed. 1984), Chapter 1, pp. 1-1
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