Stereophonic stethoscope

• US 5,548,651 A
• Filed: 03/28/1994
• Issued: 08/20/1996
• Est. Priority Date: 03/28/1994
• Status: Expired due to Fees

• Current Assignee: Howard F. Long
• Original Assignee: Howard F. Long
• Inventors: Long, Howard F.
• Primary Examiner(s): Isen, Forester W.
• Assistant Examiner(s): Mei, Xu
• Application Number:
  US08/218,522
• Time in Patent Office: 876 Days
• Field of Search: 381/67, 181/126, 181/131, 128/715, D24/134
• US Class Current: 381/67
• CPC Class Codes: A61B 7/04 Electric stethoscopes microphones, acoustic transducers therefor H04R

Abstract

An electronically amplified, recording, stereophonic stethoscope, EARSS, utilizes binaural phase effect from two probes held in one chestpiece with amplifier. Skin contacts in probes are small, to localize, pliable, to fit body curves, shaped for acoustic amplification, spread for wide pickup. Connecting tubes are flexible, with dimensions and properties that protect, isolate, reinforce and adapt skin contacts to microphones. Adapters for multiple stereophones, listeners, recorders, videocameras and imaging of induced sound, facilitate teaching, consultation and sharing with patients. More sensitive and specific detection and recognition of diseases and functions stimulate more careful auscultation by physicians, new uses and tests, and increased lay use of a classic professional symbol.

Claims

1. An electronically amplified, recording stereophonic stethoscope (EARSS) adapted to receive auscultatory sound from a patient, comprising:

a chestpiece sized to permit being held in a user'"'"'s hand;

two separate acoustic support tubes, each having a skin contact on a respective distal end thereof;

each proximal end thereof being fixed to said chestpiece and said each proximal end having a microphone mounted thereat for receiving sound from its respective tube;

said two acoustic support tubes are sufficiently rigid to permit both of said skin contacts to be firmly applied to a patient'"'"'s body for monitoring auscultatory sound while the user holds only said chestpiece;

a stereo amplifier within said chestpiece for amplifying respective outputs of each said microphone to produce left and right electronically amplified output sounds;

at least one pair of stereo headphones receiving said left and right electronically amplified sounds.

2. The electronically amplified, recording stereophonic stethoscope (EARSS) according to claim 1, said chestpiece further comprises signal transmitting means for transmitting the received auscultatory sound to a recording means.

3. The electronically amplified, recording stereophonic stethoscope (EARSS) according to claim 1, wherein said skin contacts are disposable.