GB2147475B - Differential stethoscope - Google Patents

Differential stethoscope

Info

Publication number
GB2147475B
GB2147475B GB08325879A GB8325879A GB2147475B GB 2147475 B GB2147475 B GB 2147475B GB 08325879 A GB08325879 A GB 08325879A GB 8325879 A GB8325879 A GB 8325879A GB 2147475 B GB2147475 B GB 2147475B
Authority
GB
United Kingdom
Prior art keywords
stethoscope
differential
differential 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
GB08325879A
Other versions
GB8325879D0 (en
GB2147475A (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
Priority to GB08325879A priority Critical patent/GB2147475B/en
Priority to CA000437814A priority patent/CA1200887A/en
Priority to AU19701/83A priority patent/AU1970183A/en
Priority to NL8303332A priority patent/NL8303332A/en
Priority to BE0/211623A priority patent/BE897885A/en
Priority to SE8305423A priority patent/SE8305423L/en
Priority to FR8315732A priority patent/FR2552651A1/en
Priority to DE19833336414 priority patent/DE3336414A1/en
Publication of GB8325879D0 publication Critical patent/GB8325879D0/en
Publication of GB2147475A publication Critical patent/GB2147475A/en
Application granted granted Critical
Publication of GB2147475B publication Critical patent/GB2147475B/en
Expired legal-status Critical Current

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

  • 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)
GB08325879A 1983-09-28 1983-09-28 Differential stethoscope Expired GB2147475B (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
GB08325879A GB2147475B (en) 1983-09-28 1983-09-28 Differential stethoscope
CA000437814A CA1200887A (en) 1983-09-28 1983-09-28 Differential stethoscope
AU19701/83A AU1970183A (en) 1983-09-28 1983-09-28 Differential stethoscope
NL8303332A NL8303332A (en) 1983-09-28 1983-09-29 DIFFERENTIAL STETHOSCOPE.
BE0/211623A BE897885A (en) 1983-09-28 1983-09-30 DIFFERENTIAL STETHOSCOPE
SE8305423A SE8305423L (en) 1983-09-28 1983-10-03 DIFFERENTIAL STETHOSCOPE
FR8315732A FR2552651A1 (en) 1983-09-28 1983-10-03 Process for extracting determined sounds from a signal dominated by noise and electronic stethoscope implementing this process
DE19833336414 DE3336414A1 (en) 1983-09-28 1983-10-06 Stethoscope

Applications Claiming Priority (1)

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

Publications (3)

Publication Number Publication Date
GB8325879D0 GB8325879D0 (en) 1983-11-02
GB2147475A GB2147475A (en) 1985-05-09
GB2147475B true GB2147475B (en) 1986-12-17

Family

ID=10549377

Family Applications (1)

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

Country Status (8)

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

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2525872A1 (en) * 1982-05-03 1983-11-04 Lange Jean Jacques Domestic batch temp. steriliser for jars of food prod. - has programmable timer for heater, vacuum pump and solenoid valve to atmos.
US5080104A (en) * 1986-08-05 1992-01-14 University Of Wales College Of Medicine Proximity detector with a medical instrument
DE3802289A1 (en) * 1988-01-27 1989-08-10 Jaroslav Dr Bakstein Method and device for continuously monitoring the ventilation of the lungs of intubated subjects
FR2628590B1 (en) * 1988-03-10 1991-08-30 Hodys Edgar DEVICE FOR MAKING SOUND FREE OF AMBIENT NOISES
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 (en) * 1970-05-15 1971-12-31 Cit Alcatel
FR2442040A1 (en) * 1978-11-24 1980-06-20 Leim Automatic measurement of arterial blood pressure - utilises inflatable arm-band automatically controlled from electronic measuring circuit, connected to memory unit, with systolic pressure di
SE7902971L (en) * 1979-04-04 1980-10-05 Svedman Paul PATIENT MONITORING DEVICE

Also Published As

Publication number Publication date
NL8303332A (en) 1985-04-16
CA1200887A (en) 1986-02-18
SE8305423D0 (en) 1983-10-03
BE897885A (en) 1984-01-16
SE8305423L (en) 1985-04-04
GB8325879D0 (en) 1983-11-02
FR2552651A1 (en) 1985-04-05
DE3336414A1 (en) 1985-04-18
AU1970183A (en) 1985-04-04
GB2147475A (en) 1985-05-09

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee