发明名称 |
Catheter having probes for correcting for non-uniform rotation of a transducer located within the catheter |
摘要 |
A catheter for imaging a cavity. The catheter includes a sheath having a distal end that is introduced into a cavity to be imaged and a proximal end that resides outside of the cavity. The sheath includes a tubular member with a first fixed probe located proximate to the distal end and fixed in relation to the tubular member while the cavity is being imaged. The catheter also includes a transducer for delivering an energy pulse in a predetermined direction relative to the transducer and collecting echoes generated by the pulse. The transducer is located within the sheath proximate to the distal end of the sheath and includes a transducer probe affixed to the transducer. A drive cable in the catheter causes the transducer and the transducer probe to rotate relative to the sheath. The drive cable connects the transducer to a mechanical drive mechanism located at the proximate end of the sheath. A tracking circuit measures the electrical coupling between the transducer probe and the first fixed probe to determine the location of the transducer relative to the sheath.
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申请公布号 |
US6019726(A) |
申请公布日期 |
2000.02.01 |
申请号 |
US19980096016 |
申请日期 |
1998.06.10 |
申请人 |
HEWLETT-PACKARD COMPANY |
发明人 |
WEBB, PETER |
分类号 |
A61B8/12;(IPC1-7):A61B8/14 |
主分类号 |
A61B8/12 |
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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