CA951247A - Selective frequency stethoscope structure - Google Patents

Selective frequency stethoscope structure

Info

Publication number
CA951247A
CA951247A CA139,958,A CA139958A CA951247A CA 951247 A CA951247 A CA 951247A CA 139958 A CA139958 A CA 139958A CA 951247 A CA951247 A CA 951247A
Authority
CA
Canada
Prior art keywords
selective frequency
stethoscope structure
frequency stethoscope
selective
stethoscope
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
CA139,958,A
Other versions
CA139958S (en
Inventor
Ronald J. Collins
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.)
BIO DATA
Original Assignee
BIO DATA
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 BIO DATA filed Critical BIO DATA
Application granted granted Critical
Publication of CA951247A publication Critical patent/CA951247A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B7/00—Instruments for auscultation
    • A61B7/02—Stethoscopes
    • A61B7/026—Stethoscopes comprising more than one sound collector

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Exhaust Silencers (AREA)
  • Headphones And Earphones (AREA)
CA139,958,A 1971-07-30 1972-04-18 Selective frequency stethoscope structure Expired CA951247A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US16768071A 1971-07-30 1971-07-30

Publications (1)

Publication Number Publication Date
CA951247A true CA951247A (en) 1974-07-16

Family

ID=22608348

Family Applications (1)

Application Number Title Priority Date Filing Date
CA139,958,A Expired CA951247A (en) 1971-07-30 1972-04-18 Selective frequency stethoscope structure

Country Status (3)

Country Link
US (1) US3690404A (en)
CA (1) CA951247A (en)
DE (1) DE2236017A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4633971A (en) * 1985-11-06 1987-01-06 Minnesota Mining And Manufacturing Company Stethoscope with high frequency filter

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3938615A (en) * 1974-07-11 1976-02-17 Jacob Bodenger Stethoscope consisting of a stethoscope chest piece and a sound mixer
US3999625A (en) * 1975-10-15 1976-12-28 L. P. S. Incorporated Device for simultaneous modulation and amplification of low frequency sounds
FR2396376A1 (en) * 1977-06-27 1979-01-26 Liesse Michel MECHANICAL SOUND CORRECTION DEVICE
US4528690A (en) * 1984-03-12 1985-07-09 Genovation, Inc. Compact hybrid stethoscope
DE8900402U1 (en) * 1989-01-16 1989-03-02 Kirchner & Wilhelm GmbH + Co, 7000 Stuttgart stethoscope
US5389747A (en) * 1993-08-16 1995-02-14 Mohrin; Carl M. Stethoscope
US8107638B2 (en) * 2008-03-17 2012-01-31 Syracuse University Semi-insert hearing protector having a helmholtz-type resonator
CA2734688A1 (en) * 2008-08-19 2010-02-25 Syracuse University Hearing protection apparatus with incorporated eyewear

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2632521A (en) * 1953-03-24 Frequency selector
US2363686A (en) * 1943-10-29 1944-11-28 Harry F. Olson Acoustic Stethoscope

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4633971A (en) * 1985-11-06 1987-01-06 Minnesota Mining And Manufacturing Company Stethoscope with high frequency filter

Also Published As

Publication number Publication date
DE2236017A1 (en) 1973-02-08
US3690404A (en) 1972-09-12

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