发明名称 |
Apparatus and method for transcervical sterilization by application of ultrasound |
摘要 |
An apparatus for sterilizing a female patient in a transcervical procedure comprises an elongated catheter with a piezoelectric ultrasound transducer at its distal end. The catheter is inserted transcervically into the uterus and guided to the intramural region of a fallopian tube. The transducer is inserted into the intramural region in direct contact with the surrounding tissue. The transducer produces a radially dispersing acoustical wave front, heating the adjacent tissue and forming a thermal lesion therein. A fibrous tissue forms during the healing process, sealing the fallopian tube. An embodiment of the apparatus includes a movable thermal sensor for monitoring the tissue temperature at multiple locations along the lesion. Another embodiment of the apparatus includes a spring that centers the distal end of the catheter at the opening of the fallopian tube and provides a tactile means to determine that the catheter and transducer have been correctly positioned.
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申请公布号 |
US2004002700(A1) |
申请公布日期 |
2004.01.01 |
申请号 |
US20020185417 |
申请日期 |
2002.06.28 |
申请人 |
ETHICON, INC. |
发明人 |
RYAN THOMAS P.;CROMBIE JOHN S. |
分类号 |
A61B17/00;A61B17/42;A61B18/14;A61N7/02;(IPC1-7):A61B18/04 |
主分类号 |
A61B17/00 |
代理机构 |
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地址 |
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