发明名称 |
ORTHOPAEDIC DIAGNOSTIC APPARATUS |
摘要 |
Attempts have been made to facilitate orthopedic diagnostic procedures by microphonic detection of emissions from a moving joint, with analysis of such emissions to establish correlation with pathological conditions, but these attempts have failed. Success in such a procedure is now found to require detection of emissions extending into the subsonic frequency range. Preferably a piezoelectric accelerometer detector (10) is used in direct contact with the skin. A plurality of detectors can be used around a joint with comparative analysis to localize a condition. Analysis suitably involves a frequency analyzer (14) with the possible intermediary of a multi-track tape recorder (12), the analyzer output being displayed by a printer (15) preferably of ink-jet form. One useful correlating emission characteristic is peak frequency for early diagnosis for congenital dislocation of the hip in an infant. |
申请公布号 |
DE3274793(D1) |
申请公布日期 |
1987.02.05 |
申请号 |
DE19823274793 |
申请日期 |
1982.03.25 |
申请人 |
NATIONAL RESEARCH DEVELOPMENT CORPORATION |
发明人 |
MOLLAN, RAYMOND ALEXANDER BOYCE |
分类号 |
A61B7/00;(IPC1-7):A61B7/00;A61B5/10 |
主分类号 |
A61B7/00 |
代理机构 |
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代理人 |
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