发明名称 |
Method and apparatus for detection of air cavities in a body |
摘要 |
A method and apparatus for detecting the presence of gas cavities in the abdomen, the thorax and elsewhere is disclosed. The apparatus includes an actuator for transmitting low frequency vibro-acoustic waves (such as from a white noise generator, impulse wave or chirp signal) into the body at a first location and a detector (such as from a vibro-acoustic sensor, microphone, air-coupled microphone or optical detector) for receiving the transmitted low frequency vibro-acoustic waves at a second location on the body. The actuator and detector are positioned to be effective for detecting the suspected gas cavity. The detector generates a response signal which is analyzed. Resonance waves and anti-resonance waves in the detected signal indicate the presence of a gas cavity. |
申请公布号 |
AU3191499(A) |
申请公布日期 |
1999.10.18 |
申请号 |
AU19990031914 |
申请日期 |
1999.03.17 |
申请人 |
RUSH-PRESBYTERIAN-ST. LUKE'S MEDICAL CENTER |
发明人 |
HUSSEIN A. MANSY;RICHARD H. SANDLER |
分类号 |
A61B9/00;A61B8/00;A61B8/08 |
主分类号 |
A61B9/00 |
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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