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| 국가/구분 | United States(US) Patent 등록 |
|---|---|
| 국제특허분류(IPC7판) |
|
| 출원번호 | US-0217246 (1994-03-24) |
| 발명자 / 주소 |
|
| 출원인 / 주소 |
|
| 인용정보 | 피인용 횟수 : 691 인용 특허 : 0 |
A method and device for the automated biopsy and collection of soft tissue having a piercing needle with a receiving port to trap tissue prior to cutting. A motor drive directs and positions the tissue receiving port at a lesion site in arbitrary positions about and along the longitudinal axis of th
A method and device for the automated biopsy and collection of soft tissue having a piercing needle with a receiving port to trap tissue prior to cutting. A motor drive directs and positions the tissue receiving port at a lesion site in arbitrary positions about and along the longitudinal axis of the device. A cutter advances into the receiving chamber and severs tissue which has prolapsed into the receiving port. The severed tissue is then removed from the receiving port without removing the piercing needle receiving port from the lesion site, thus allowing for the accurate, rapid removal of an arbitrary number of core samples with only one insertion. A tissue sample cassette provides storage for the samples as well as a means for coding and decoding the location from which the samples were obtained. Together, these features allow for more accurate and complete sampling of large lesions, for the complete removal of small lesions or removal of other tissue for a variety of reasons.
A biopsy device for acquiring a plurality of sequentially biopsied, discrete samples of tissue comprising: a rotatable retaining fixture; an elongate outer piercing needle having a sharpened distal end for piercing tissue, said elongate outer piercing needle attached to said rotatable retaining fixt
A biopsy device for acquiring a plurality of sequentially biopsied, discrete samples of tissue comprising: a rotatable retaining fixture; an elongate outer piercing needle having a sharpened distal end for piercing tissue, said elongate outer piercing needle attached to said rotatable retaining fixture such that said sharpened distal end is held in a fixed position within the tissue mass at a predetermined target position, wherein said elongate outer piercing needle has a lateral opening located proximal to said sharpened distal end for receiving a portion of the tissue mass which is positioned adjacent to said lateral opening; an elongate inner cannula disposed coaxially and slidably within said elongate outer piercing needle, said elongate inner cannula having a sharpened distal end for cutting the portion of tissue protruding into said elongate outer piercing needle lateral opening when said elongate inner cannula slides past said lateral opening thereby depositing the portion of cut tissue within said elongate inner cannula proximal to said sharpened distal end; an inner cannula driver connected to said elongate inner cannula and configured to move said elongate inner cannula axially within said elongate outer piercing needle; and a tissue sample cartridge having a plurality of tissue sample receptacles, said tissue sample cartridge located proximal to a distal end of said elongate outer piercing needle and configured to receive the portion of cut tissue which is in said elongate inner cannula proximal to said sharpened distal end when said inner cannula driver withdraws said inner cannula from said outer piercing needle.
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