WO1997003600A3 - Electronic stethoscope - Google Patents

Electronic stethoscope Download PDF

Info

Publication number
WO1997003600A3
WO1997003600A3 PCT/US1996/011978 US9611978W WO9703600A3 WO 1997003600 A3 WO1997003600 A3 WO 1997003600A3 US 9611978 W US9611978 W US 9611978W WO 9703600 A3 WO9703600 A3 WO 9703600A3
Authority
WO
WIPO (PCT)
Prior art keywords
stethoscope
acoustic
electronic stethoscope
electronic
heart
Prior art date
Application number
PCT/US1996/011978
Other languages
French (fr)
Other versions
WO1997003600A9 (en
WO1997003600A2 (en
Inventor
James A Grasfield
David E Winston
John A Purbrick
Peter R H Stark
Daniela Steinhubel
Original Assignee
Stethtech 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 Stethtech Corp filed Critical Stethtech Corp
Priority to AU66782/96A priority Critical patent/AU6678296A/en
Priority to JP9506904A priority patent/JPH11510067A/en
Priority to DE69628436T priority patent/DE69628436T2/en
Priority to EP96926746A priority patent/EP0845958B1/en
Priority to AT96926746T priority patent/ATE241316T1/en
Publication of WO1997003600A2 publication Critical patent/WO1997003600A2/en
Publication of WO1997003600A9 publication Critical patent/WO1997003600A9/en
Publication of WO1997003600A3 publication Critical patent/WO1997003600A3/en

Links

Classifications

    • 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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B7/00—Instruments for auscultation
    • A61B7/003—Detecting lung or respiration noise

Abstract

An electronic stethoscope having several modes of operation to process acoustic signals to provide filtered signals useful for diagnosis. In one mode of operation the stethoscope substantially provides only acoustic signals generated by biological activity of the heart. In another mode of operation, the acoustic stethoscope substantially provides only acoustic signals generated by biological activity of the lungs. In another mode of operation, the electronic stethoscope disproportionately amplifies abnormal heart sounds and normal heart sounds to enhance diagnosis of heart abnormalities. The electronic stethoscope is operated in a manner similar to a conventional acoustic stethoscope and has similar spectral characteristics, thus allowing a user with acoustic stethoscope experience to easily use the electronic stethoscope.
PCT/US1996/011978 1995-07-21 1996-07-19 Electronic stethoscope WO1997003600A2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
AU66782/96A AU6678296A (en) 1995-07-21 1996-07-19 Electronic stethoscope
JP9506904A JPH11510067A (en) 1995-07-21 1996-07-19 Electronic stethoscope
DE69628436T DE69628436T2 (en) 1995-07-21 1996-07-19 ELECTRONIC STETHOSCOPE
EP96926746A EP0845958B1 (en) 1995-07-21 1996-07-19 Electronic stethoscope
AT96926746T ATE241316T1 (en) 1995-07-21 1996-07-19 ELECTRONIC STETHOSCOPE

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US50560195A 1995-07-21 1995-07-21
US08/505,601 1995-07-21

Publications (3)

Publication Number Publication Date
WO1997003600A2 WO1997003600A2 (en) 1997-02-06
WO1997003600A9 WO1997003600A9 (en) 1997-05-09
WO1997003600A3 true WO1997003600A3 (en) 1997-06-05

Family

ID=24011018

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1996/011978 WO1997003600A2 (en) 1995-07-21 1996-07-19 Electronic stethoscope

Country Status (8)

Country Link
US (4) US5825895A (en)
EP (1) EP0845958B1 (en)
JP (1) JPH11510067A (en)
AT (1) ATE241316T1 (en)
AU (1) AU6678296A (en)
CA (1) CA2227416A1 (en)
DE (1) DE69628436T2 (en)
WO (1) WO1997003600A2 (en)

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Also Published As

Publication number Publication date
EP0845958B1 (en) 2003-05-28
AU6678296A (en) 1997-02-18
US20030072457A1 (en) 2003-04-17
ATE241316T1 (en) 2003-06-15
CA2227416A1 (en) 1997-02-06
WO1997003600A2 (en) 1997-02-06
US20070154024A1 (en) 2007-07-05
DE69628436T2 (en) 2004-04-08
US20080037800A1 (en) 2008-02-14
US5825895A (en) 1998-10-20
JPH11510067A (en) 1999-09-07
DE69628436D1 (en) 2003-07-03
EP0845958A2 (en) 1998-06-10

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