CA1200887A - Stethoscope differentiel - Google Patents

Stethoscope differentiel

Info

Publication number
CA1200887A
CA1200887A CA000437814A CA437814A CA1200887A CA 1200887 A CA1200887 A CA 1200887A CA 000437814 A CA000437814 A CA 000437814A CA 437814 A CA437814 A CA 437814A CA 1200887 A CA1200887 A CA 1200887A
Authority
CA
Canada
Prior art keywords
signal
stethoscope
signals
heartbeat
comparison
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.)
Expired
Application number
CA000437814A
Other languages
English (en)
Inventor
Martin J. Slavin
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.)
Intech Systems Corp
Original Assignee
Intech Systems Corp
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 by Intech Systems Corp filed Critical Intech Systems Corp
Application granted granted Critical
Publication of CA1200887A publication Critical patent/CA1200887A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers
    • H04R3/005—Circuits for transducers for combining the signals of two or more microphones
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B7/00—Instruments for auscultation
    • A61B7/02—Stethoscopes
    • A61B7/04—Electric stethoscopes

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • Medical Informatics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • Biomedical Technology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Otolaryngology (AREA)
  • Signal Processing (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Headphones And Earphones (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
CA000437814A 1983-09-28 1983-09-28 Stethoscope differentiel Expired CA1200887A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08325879A GB2147475B (en) 1983-09-28 1983-09-28 Differential stethoscope

Publications (1)

Publication Number Publication Date
CA1200887A true CA1200887A (fr) 1986-02-18

Family

ID=10549377

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000437814A Expired CA1200887A (fr) 1983-09-28 1983-09-28 Stethoscope differentiel

Country Status (8)

Country Link
AU (1) AU1970183A (fr)
BE (1) BE897885A (fr)
CA (1) CA1200887A (fr)
DE (1) DE3336414A1 (fr)
FR (1) FR2552651A1 (fr)
GB (1) GB2147475B (fr)
NL (1) NL8303332A (fr)
SE (1) SE8305423L (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2525872A1 (fr) * 1982-05-03 1983-11-04 Lange Jean Jacques Sterilisateur menager automatique
WO1988000811A1 (fr) * 1986-08-05 1988-02-11 University Of Wales College Of Medicine Detecteur de proximite
DE3802289A1 (de) * 1988-01-27 1989-08-10 Jaroslav Dr Bakstein Verfahren und vorrichtung zur kontinuierlichen ueberwachung der ventilation der lunge von intubierten personen
FR2628590B1 (fr) * 1988-03-10 1991-08-30 Hodys Edgar Dispositif permettant une prise de son exempte de bruits ambiants
US5548651A (en) * 1994-03-28 1996-08-20 Long; Howard F. Stereophonic stethoscope

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2309109A (en) * 1937-06-04 1943-01-26 Rca Corp Microphone
FR2087370A5 (fr) * 1970-05-15 1971-12-31 Cit Alcatel
FR2442040A1 (fr) * 1978-11-24 1980-06-20 Leim Appareils de mesure automatique de la pression arterielle
SE7902971L (sv) * 1979-04-04 1980-10-05 Svedman Paul Anordning vid patientovervakning

Also Published As

Publication number Publication date
DE3336414A1 (de) 1985-04-18
GB2147475B (en) 1986-12-17
NL8303332A (nl) 1985-04-16
BE897885A (fr) 1984-01-16
FR2552651A1 (fr) 1985-04-05
GB2147475A (en) 1985-05-09
AU1970183A (en) 1985-04-04
GB8325879D0 (en) 1983-11-02
SE8305423L (sv) 1985-04-04
SE8305423D0 (sv) 1983-10-03

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Legal Events

Date Code Title Description
MKEX Expiry