发明名称 |
SELF-CALIBRATING SYSTEMS AND METHODS FOR LOCATING AND GUIDING OPERATIVE ELEMENTS WITHIN THE INTERIOR OF LIVING BODIES |
摘要 |
Calibrated systems and methods locate a roving structure inside a body regio n. An electric field is established inside the body region between an electrica l energy transmitting electrode and an electrical reference. A navigational output is derived for the roving structure based upon a function, which expresses a relationship between an electrical characteristic sensed at the roving structure and distance between the roving structure and the electrica l energy transmitting electrode. First and second electrodes, spaced apart a known distance, are present in the electric field. The function is adjusted by comparing the known distance to at least one derived navigation output, whic h is derived, based upon the function, by sensing an electrical characteristic at the first and second electrodes. |
申请公布号 |
CA2327696(A1) |
申请公布日期 |
1999.10.21 |
申请号 |
CA19992327696 |
申请日期 |
1999.04.05 |
申请人 |
BOSTON SCIENTIFIC CORPORATION |
发明人 |
SWANSON, DAVID K.;PANESCU, DORIN |
分类号 |
A61B19/00;A61B5/06;A61M25/00;A61M25/01 |
主分类号 |
A61B19/00 |
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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