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    • 39. 发明专利
    • BIOPSY INSTRUMENT
    • JPH11235345A
    • 1999-08-31
    • JP34668398
    • 1998-11-20
    • ETHICON ENDO SURGERY INC
    • VOEGELE JAMES WERICKSON PAUL LPRIVITERA SALVATORERHAD EDWARD
    • A61B10/02A61B10/00
    • PROBLEM TO BE SOLVED: To provide a surgical instrument for excising the desired tissue part for biopsy from the nearby internal tissue of a surgicalpatient. SOLUTION: This instrument 10 includes a slender tube, a penetrating member 17 having first and second tissue stopping parts secured to the end of the slender tube 12, and a tissue cutter 22 concentrically attached to the slender tube in such a way as to be movable from a first position to a second position in order to cut a tissue taken into a tissue accepting chamber. The first tissue stopping part 20 and the second tissue stopping part (21) define a continuous tissue accepting chamber in the form of an arc of 360 deg. around the end of the slender tube, for accommodating the desired tissue part. Different from biopsy instruments of the prior art in which the tissue is housed in a limited lateral accepting port, the instrument 10 can take a substantially larger sample into the tissue accepting chamber. The instrument is designed to collect a sample of sufficient size for biopsy under the state of minimum invasion while minimizing or avoiding injury to the nearby parts for biopsy.