[특허]Apparatus for minimally invasive tissue removal

[미국특허] Apparatus for minimally invasive tissue removal 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	A61B-017/20
출원번호	US-0018045 (1993-02-16)
발명자 / 주소	Schechter Alan M. (Long Beach CA) Mark Joseph L. (Indianapolis IN) Stave Frederick R. (St. Joseph MI)
출원인 / 주소	Danek Medical, Inc. (Memphis TN 02)
인용정보	피인용 횟수 : 282 인용 특허 : 0

초록 ▼

An apparatus for minimally invasive tissue removal contemplates a system including a tissue cutting tool having a motor driven cut-ting blade reciprocating within a percutaneously introducable cannula. In accordance with one method of the invention, the frequency of reciprocation of the cutting blade is tuned to a characteristic frequency of the target tissue to be excised, which frequency is a function of certain properties of the target tissue and the surrounding tissue. Cutting at the characteristic frequency of the target tissue not only enhances the speed and efficiency of the tissue excision, but also minimizes the risk of cutting surrounding tissue. Another aspect of the system includes feedback control of both aspiration and irrigation circuits of the system. With the feedback control, coupled with user settable inputs, the surgeon can control the system to “tease”tissue into the cutting opening to provide more manageable bite sizes of the excised tissue. Controllable valves and pressure transducers allow the operator to set and maintain the aspiration vacuum and irrigation pressure at optimum levels. In other aspects of the invention, other cutting heads, such as a rasp and a tissue morcelator, are disclosed which take advantage of the integrated feedback control system of the invention.

대표청구항 ▼

A system for minimally invasive percutaneous tissue removal comprising: a) a tissue cutting tool including: a handpiece; an elongated cannula sized for percutaneous introduction into the body and having a proximal end and an opposite distal end, said cannula supported at said proximal end by said handpiece and having a cutting opening defined at said distal end, said cannula further defining an aspiration channel therethrough from said proximal end to said cutting opening; a cutting blade mounted within said cannula adjacent said distal end for passage across said cutting opening; drive means engaged to said cutting blade for moving said cutting blade across said cutting opening, whereby tissue extending into said cutting opening is excised by passage of said cutting blade thereacross, the excised tissue being conveyed into said aspiration channel; b) an aspiration circuit, including; a waste container for receiving tissue excised by said cutting blade; a tube connecting said aspiration channel with said waste container for conveying excised tissue from said aspiration channel to said waste container; and vacuum generator means for generating a vacuum through said waste container, said tube and said aspiration channel to draw excised tissue therethrough, wherein said vacuum generator means includes means for generating a vacuum in response to the pressure of a gas received by said vacuum generator means; c) an irrigation circuit, including; a source of irrigation fluid; means for flowing irrigation fluid from said source to said distal end of said cannula; and pressurizing means for pressurizing irrigation fluid flowing from said source to said distal end of said cannula; d) controller means for controlling said vacuum generator means and said pressurizing means, including; input means for providing preset values for aspiration vacuum level and irrigation pressure; circuitry for producing an aspiration control signal and a pressure control signal in response to said preset values from said input means; means responsive to said aspiration control signal for controlling said vacuum generator means to produce and maintain a vacuum equal to said preset aspiration vacuum level value, including; a source of high pressure gas; a controllable valve having an inlet and an outlet and engaged at said inlet to said source of high pressure gas, said valve having means responsive to said aspiration control signal for controllably reducing the pressure of the high pressure gas received at said inlet and releasing relatively reduced pressure gas at said outlet; and a connection from said outlet of said controllable valve to said vacuum generator means for providing said reduced pressure gas to said vacuum generator means; means responsive to said pressure control signal for controlling said pressurizing means to pressurize and maintain the irrigation fluid at said preset pressure value.

이 특허를 인용한 특허 (282) 인용/피인용 타임라인 분석

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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

내보내기 구분	파일저장 인쇄 메일전송
구성항목	기본정보 상세정보 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표IPC 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 공고번호, 공고일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표출원인, 출원인국적, 출원인주소, 발명자, 발명자E, 발명자코드, 발명자주소, 발명자 우편번호, 발명자국적, 대표IPC, IPC코드, 요약, 미국특허분류, 대리인주소, 대리인코드, 대리인(한글), 대리인(영문), 국제공개일자, 국제공개번호, 국제출원일자, 국제출원번호, 우선권, 우선권주장일, 우선권국가, 우선권출원번호, 원출원일자, 원출원번호, 지정국, Citing Patents, Cited Patents
저장형식	Text(ASCII format) Excel format PIAS분석(.xls)
메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
안내	총 건의 자료가 검색되었습니다. 다운받으실 자료의 인덱스를 입력하세요. (1-10,000) 검색결과의 순서대로 최대 10,000건 까지 다운로드가 가능합니다. 데이타가 많을 경우 속도가 느려질 수 있습니다.(최대 2~3분 소요) 다운로드 파일은 UTF-8 형태로 저장됩니다. 파일의 내용이 제대로 보이지 않을실 때는 웹브라우저 상단의 보기 -> 인코딩 -> 자동선택 여부를 확인하십시오. ~ Text(ASCII format) Excel format

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