CA2179022A1 - Medical sensor with modulated encoding scheme - Google Patents

Medical sensor with modulated encoding scheme

Info

Publication number
CA2179022A1
CA2179022A1 CA002179022A CA2179022A CA2179022A1 CA 2179022 A1 CA2179022 A1 CA 2179022A1 CA 002179022 A CA002179022 A CA 002179022A CA 2179022 A CA2179022 A CA 2179022A CA 2179022 A1 CA2179022 A1 CA 2179022A1
Authority
CA
Canada
Prior art keywords
medical sensor
modulated signal
encoding scheme
modulated encoding
provides
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002179022A
Other languages
French (fr)
Other versions
CA2179022C (en
Inventor
Michael E. Fein
David C. Jenkins
Michael J. Bernstein
K. L. Venkatachalam
Adnan I. Merchant
Charles H. Bowden
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nellcor Puritan Bennett LLC
Original Assignee
Michael E. Fein
David C. Jenkins
Michael J. Bernstein
K. L. Venkatachalam
Adnan I. Merchant
Charles H. Bowden
Venkatachalam, K.L.
Nellcor Incorporated
Nellcor Puritan Bennett Incorporated
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US08/168,449 external-priority patent/US5645059A/en
Application filed by Michael E. Fein, David C. Jenkins, Michael J. Bernstein, K. L. Venkatachalam, Adnan I. Merchant, Charles H. Bowden, Venkatachalam, K.L., Nellcor Incorporated, Nellcor Puritan Bennett Incorporated filed Critical Michael E. Fein
Publication of CA2179022A1 publication Critical patent/CA2179022A1/en
Application granted granted Critical
Publication of CA2179022C publication Critical patent/CA2179022C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/0002—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
    • A61B5/1455—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue using optical sensors, e.g. spectral photometrical oximeters
    • A61B5/14551—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue using optical sensors, e.g. spectral photometrical oximeters for measuring blood gases
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
    • A61B5/7228—Signal modulation applied to the input signal sent to patient or subject; demodulation to recover the physiological signal
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
    • A61B2562/08—Sensors provided with means for identification, e.g. barcodes or memory chips

Abstract

The present invention provides an en-coding mechanism for a medical sensor which uses a modulated signal to provide the coded data to a remote analyser. The modulated signal could be, for instance, a pulse width modulated signal or a frequency modulated signal. This signal is amplitude independent and thus provides a significant amount of noise immunity.
CA002179022A 1993-12-17 1994-11-22 Medical sensor with modulated encoding scheme Expired - Fee Related CA2179022C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/168,449 1993-12-17
US08/168,449 US5645059A (en) 1993-12-17 1993-12-17 Medical sensor with modulated encoding scheme
PCT/US1994/013497 WO1995016387A1 (en) 1993-12-17 1994-11-22 Medical sensor with modulated encoding scheme

Publications (2)

Publication Number Publication Date
CA2179022A1 true CA2179022A1 (en) 1995-06-22
CA2179022C CA2179022C (en) 2007-03-06

Family

ID=37891544

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002179022A Expired - Fee Related CA2179022C (en) 1993-12-17 1994-11-22 Medical sensor with modulated encoding scheme

Country Status (1)

Country Link
CA (1) CA2179022C (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8968193B2 (en) 2008-09-30 2015-03-03 Covidien Lp System and method for enabling a research mode on physiological monitors

Also Published As

Publication number Publication date
CA2179022C (en) 2007-03-06

Similar Documents

Publication Publication Date Title
CA2077662A1 (en) Encoder/decoder for multidimensional sound fields
EP0660136A3 (en) Downhole processing of sonic waveform information.
AU1260395A (en) Medical sensor with amplitude independent output
AU7562394A (en) Multivariable transmitter
EP0575725A3 (en) Adaptive signal detection process for the evaluation of multifrequency coded signals.
IT1230235B (en) STRUCTURING AND PACKAGE TRANSMISSION OF THE INFORMATION GENERATED BY CODER FOR VIDEO SIGNALS.
DE69617143T2 (en) Signal coding, recording and transmission
EP0627859A3 (en) Hierarchical encoding and/or decoding of digital video signals.
AU4442789A (en) Proximity reading of coded tag
DE69008498D1 (en) Suppressed carrier amplitude modulation transmission system that maintains the polarity of the transmitted signal.
AU689506B2 (en) Signal encoder, signal decoder, recording medium and signal encoding method
EP0644681A3 (en) Card with lock by remote interrogation.
EP0622958A3 (en) Real-time data transmitter and receiver.
EP0593260A3 (en) Coding of data.
GB2279519B (en) Transmitter/receiver
CA2179022A1 (en) Medical sensor with modulated encoding scheme
ZA946812B (en) Method of recovering a frequency modulated signal.
EP0206264A3 (en) Expanded partial response processing for analog signal enciphering and the like
UA27819C2 (en) Method for decreasing a cross-point frequency modulation while using transmission and/or generation of digitized acoustic or optical signals
GB2281957B (en) Rotational angle signal transmitter
NO961412D0 (en) Signal receiver and signal transmitter
AU7389494A (en) Remote lock alarm
AU4705793A (en) Sensor and transmitter for physiologic signals
GB9317400D0 (en) Lossless data compression of waveform signals
FR2703864B1 (en) Coded optical pulse train transmitter, especially for remote control.

Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed