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Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0040244 (1998-02-20) |
발명자 / 주소 |
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출원인 / 주소 |
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인용정보 | 피인용 횟수 : 314 인용 특허 : 225 |
A method of performing a surgical biopsy is also provided which includes inserting a biopsy apparatus into the tissue of a patient, the biopsy apparatus including an inner tubular member having a tapered penetrating end formed on the distal end and an outer tubular member held longitudinally fixed r
A method of performing a surgical biopsy is also provided which includes inserting a biopsy apparatus into the tissue of a patient, the biopsy apparatus including an inner tubular member having a tapered penetrating end formed on the distal end and an outer tubular member held longitudinally fixed relative to the inner tubular member during the insertion step; retracting the outer tubular member relative to the inner tubular member to expose a laterally disposed tissue receiving area formed on the inner tubular member; applying suction to a series of openings formed along an inner surface of the tissue receiving area to pull tissue into the tissue receiving area; severing tissue disposed within the tissue receiving area by advancing the outer tubular member over the inner tubular member such that a cutting surface formed on the distal end of the outer tubular member rotates as it passes over the tissue receiving area; and removing the severed tissue sample from the tissue sampling site by retracting the inner tubular member from the outer tubular member until the tissue receiving area is aligned with a lateral opening formed in the outer tubular member wherein a tissue stripping plate urges the tissue sample out of the tissue receiving area.
[ What is claimed is:] [1.] A surgical biopsy apparatus which comprises:a housing;a first elongated tubular member removably mounted in the housing and defining a fluid passageway therein, the first elongated tubular member including:a tapered closed distal end portion adapted to penetrate tissue;a
[ What is claimed is:] [1.] A surgical biopsy apparatus which comprises:a housing;a first elongated tubular member removably mounted in the housing and defining a fluid passageway therein, the first elongated tubular member including:a tapered closed distal end portion adapted to penetrate tissue;a laterally disposed tissue receiving opening formed near the tapered distal end which includes a tissue support surface defining a plurality of holes in fluid communication with the fluid passageway; anda second elongated tubular member rotatably and reciprocatingly disposed coaxially about the first elongated tubular member, the second elongated tubular member having a cutting edge formed at an open distal end thereof and a lateral tissue discharge port formed proximally of the cutting edge.
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