发明名称 |
Electronic pick-up device for transducing electrical energy and sound energy of the heart |
摘要 |
A stethoscope transducer applicable as a conventional audio transducer and as a phonocardiogram transducer has a body which on one side mounts an electrode carrying chest bell and which on an opposite side mounts a conventional chest bell. A microphone and a rotor assembly are mounted in a cavity in the body. The microphone and earpiece connections on the body communicate through passages in the rotor assembly with the electrode carrying chest bell when the rotor assembly is in a first position and with the conventional chest bell when the rotor assembly is rotated to a second position. These are three electrodes, two being pickup electrodes which each occupy one quadrant of the chest bell rim in diametrically opposite positions. The third electrode is on the rim intermediate the pickup electrodes. The rim is of a non-wettable material providing a hydrophobic surface.
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申请公布号 |
US4362164(A) |
申请公布日期 |
1982.12.07 |
申请号 |
US19800186074 |
申请日期 |
1980.09.11 |
申请人 |
HUGHES AIRCRAFT COMPANY |
发明人 |
LITTLE, MICHAEL J.;WONG, SHI-YIN |
分类号 |
A61B5/0404;A61B7/02;(IPC1-7):A61B5/02 |
主分类号 |
A61B5/0404 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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