IT979669B - MICROPHONE FOR TEMPORARY DETECTION OF SPHYGMIC AND CARDIAC TONES - Google Patents

MICROPHONE FOR TEMPORARY DETECTION OF SPHYGMIC AND CARDIAC TONES

Info

Publication number
IT979669B
IT979669B IT33406/72A IT3340672A IT979669B IT 979669 B IT979669 B IT 979669B IT 33406/72 A IT33406/72 A IT 33406/72A IT 3340672 A IT3340672 A IT 3340672A IT 979669 B IT979669 B IT 979669B
Authority
IT
Italy
Prior art keywords
sphygmic
microphone
temporary detection
tones
cardiac
Prior art date
Application number
IT33406/72A
Other languages
Italian (it)
Original Assignee
Siemens Ag
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 Siemens Ag filed Critical Siemens Ag
Application granted granted Critical
Publication of IT979669B publication Critical patent/IT979669B/en

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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
    • A61B5/316—Modalities, i.e. specific diagnostic methods
    • A61B5/318—Heart-related electrical modalities, e.g. electrocardiography [ECG]
    • A61B5/332—Portable devices specially adapted therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B7/00—Instruments for auscultation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • H04R1/04—Structural association of microphone with electric circuitry therefor
IT33406/72A 1971-12-29 1972-12-22 MICROPHONE FOR TEMPORARY DETECTION OF SPHYGMIC AND CARDIAC TONES IT979669B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE16811/71A SE367300B (en) 1971-12-29 1971-12-29

Publications (1)

Publication Number Publication Date
IT979669B true IT979669B (en) 1974-09-30

Family

ID=20302803

Family Applications (1)

Application Number Title Priority Date Filing Date
IT33406/72A IT979669B (en) 1971-12-29 1972-12-22 MICROPHONE FOR TEMPORARY DETECTION OF SPHYGMIC AND CARDIAC TONES

Country Status (4)

Country Link
FR (1) FR2165963B1 (en)
GB (1) GB1373840A (en)
IT (1) IT979669B (en)
SE (1) SE367300B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI103747B (en) 1998-01-29 1999-08-31 Emf Acoustics Oy Ltd The vibration transducer unit

Also Published As

Publication number Publication date
FR2165963A1 (en) 1973-08-10
DE2259496A1 (en) 1973-07-12
GB1373840A (en) 1974-11-13
SE367300B (en) 1974-05-20
DE2259496B2 (en) 1975-10-30
FR2165963B1 (en) 1978-03-03

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