SE8305423D0 - Differential stethoscope - Google Patents

Differential stethoscope

Info

Publication number
SE8305423D0
SE8305423D0 SE8305423A SE8305423A SE8305423D0 SE 8305423 D0 SE8305423 D0 SE 8305423D0 SE 8305423 A SE8305423 A SE 8305423A SE 8305423 A SE8305423 A SE 8305423A SE 8305423 D0 SE8305423 D0 SE 8305423D0
Authority
SE
Sweden
Prior art keywords
stethoscope
signals
amplified
inputted
differential
Prior art date
Application number
SE8305423A
Other languages
English (en)
Other versions
SE8305423L (sv
Inventor
M J Slavin
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
Publication of SE8305423D0 publication Critical patent/SE8305423D0/sv
Publication of SE8305423L publication Critical patent/SE8305423L/sv

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/005—Circuits for transducers, loudspeakers or microphones 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

  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Signal Processing (AREA)
  • Otolaryngology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (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)
SE8305423A 1983-09-28 1983-10-03 Differentialstetoskop SE8305423L (sv)

Applications Claiming Priority (1)

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

Publications (2)

Publication Number Publication Date
SE8305423D0 true SE8305423D0 (sv) 1983-10-03
SE8305423L SE8305423L (sv) 1985-04-04

Family

ID=10549377

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8305423A SE8305423L (sv) 1983-09-28 1983-10-03 Differentialstetoskop

Country Status (8)

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

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 (en) * 1986-08-05 1988-02-11 University Of Wales College Of Medicine Proximity detector
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 (sv) * 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
GB2147475A (en) 1985-05-09
FR2552651A1 (fr) 1985-04-05
NL8303332A (nl) 1985-04-16
GB2147475B (en) 1986-12-17
CA1200887A (en) 1986-02-18
DE3336414A1 (de) 1985-04-18
GB8325879D0 (en) 1983-11-02
BE897885A (fr) 1984-01-16
SE8305423L (sv) 1985-04-04
AU1970183A (en) 1985-04-04

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Legal Events

Date Code Title Description
NAV Patent application has lapsed

Ref document number: 8305423-9

Effective date: 19870501