Surgery – Instruments – Electrical application
Reexamination Certificate
2005-12-06
2005-12-06
Rollins, Rosiland (Department: 3739)
Surgery
Instruments
Electrical application
C606S040000, C606S041000, C606S135000
Reexamination Certificate
active
06972018
ABSTRACT:
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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Crombie John S.
Ryan Thomas P.
Gynecare a division of Ethicon, Inc.
Rollins Rosiland
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