USB321018I5 - - Google Patents

Info

Publication number
USB321018I5
USB321018I5 US32101873A USB321018I5 US B321018 I5 USB321018 I5 US B321018I5 US 32101873 A US32101873 A US 32101873A US B321018 I5 USB321018 I5 US B321018I5
Authority
US
United States
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.)
Pending
Application number
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
Application filed filed Critical
Priority to US321018A priority Critical patent/US3921623A/en
Publication of USB321018I5 publication Critical patent/USB321018I5/en
Application granted granted Critical
Publication of US3921623A publication Critical patent/US3921623A/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • A61B5/02—Detecting, measuring or recording for evaluating the cardiovascular system, e.g. pulse, heart rate, blood pressure or blood flow
    • A61B5/024—Measuring pulse rate or heart rate
    • A61B5/02416—Measuring pulse rate or heart rate using photoplethysmograph signals, e.g. generated by infrared radiation
    • 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
    • A61B5/7235—Details of waveform analysis
    • A61B5/7239—Details of waveform analysis using differentiation including higher order derivatives

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Cardiology (AREA)
  • Biomedical Technology (AREA)
  • Medical Informatics (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Physiology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Physics & Mathematics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
US321018A 1973-01-04 1973-01-04 Heart beating examining apparatus Expired - Lifetime US3921623A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US321018A US3921623A (en) 1973-01-04 1973-01-04 Heart beating examining apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US321018A US3921623A (en) 1973-01-04 1973-01-04 Heart beating examining apparatus

Publications (2)

Publication Number Publication Date
USB321018I5 true USB321018I5 (en) 1975-01-28
US3921623A US3921623A (en) 1975-11-25

Family

ID=23248819

Family Applications (1)

Application Number Title Priority Date Filing Date
US321018A Expired - Lifetime US3921623A (en) 1973-01-04 1973-01-04 Heart beating examining apparatus

Country Status (1)

Country Link
US (1) US3921623A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1143014A (en) 1980-04-24 1983-03-15 Her Majesty The Queen, In Right Of Canada, As Represented By The Minister Of National Defence Portable digital heart rate meter/ stethoscope
US4628939A (en) * 1980-09-11 1986-12-16 Hughes Aircraft Company Method and improved apparatus for analyzing heart activity
US4428380A (en) 1980-09-11 1984-01-31 Hughes Aircraft Company Method and improved apparatus for analyzing activity
US4446873A (en) * 1981-03-06 1984-05-08 Siemens Gammasonics, Inc. Method and apparatus for detecting heart sounds
US4672977A (en) * 1986-06-10 1987-06-16 Cherne Industries, Inc. Lung sound cancellation method and apparatus
DE3744605C1 (en) * 1987-12-31 1989-04-27 Jochen Dipl-Ing Heimann Sensor
US4972841A (en) * 1988-11-14 1990-11-27 Iguchi Robert K Stethoscope with pulse rate display

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3030946A (en) * 1962-04-24 amplifier
US3132208A (en) * 1961-06-22 1964-05-05 Bell Aerospace Corp Electronic stethoscope
US3139086A (en) * 1962-04-26 1964-06-30 Francis W Botsch Human pulse rate measuring apparatus
US3474778A (en) * 1967-06-05 1969-10-28 Statham Instrument Inc Pulse repetition rate determination circuit
USRE27042E (en) * 1968-10-24 1971-01-26 Method and apparatus for automatic screening op cardiac signals
US3581735A (en) * 1968-06-12 1971-06-01 Hewlett Packard Gmbh Heartbeat frequency determining apparatus and method
US3651798A (en) * 1970-05-15 1972-03-28 Parke Davis & Co Blood pressure indicator and noise
US3704706A (en) * 1969-10-23 1972-12-05 Univ Drexel Heart rate and respiratory monitor

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3030946A (en) * 1962-04-24 amplifier
US3132208A (en) * 1961-06-22 1964-05-05 Bell Aerospace Corp Electronic stethoscope
US3139086A (en) * 1962-04-26 1964-06-30 Francis W Botsch Human pulse rate measuring apparatus
US3474778A (en) * 1967-06-05 1969-10-28 Statham Instrument Inc Pulse repetition rate determination circuit
US3581735A (en) * 1968-06-12 1971-06-01 Hewlett Packard Gmbh Heartbeat frequency determining apparatus and method
USRE27042E (en) * 1968-10-24 1971-01-26 Method and apparatus for automatic screening op cardiac signals
US3704706A (en) * 1969-10-23 1972-12-05 Univ Drexel Heart rate and respiratory monitor
US3651798A (en) * 1970-05-15 1972-03-28 Parke Davis & Co Blood pressure indicator and noise

Also Published As

Publication number Publication date
US3921623A (en) 1975-11-25

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