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| 국가/구분 | United States(US) Patent 등록 |
|---|---|
| 국제특허분류(IPC7판) |
|
| 출원번호 | US-0439114 (1989-11-17) |
| 발명자 / 주소 |
|
| 출원인 / 주소 |
|
| 인용정보 | 피인용 횟수 : 295 인용 특허 : 0 |
A surgical instrument having a handpiece; a vibration source within the handpiece for generating mechanical vibrations in response to current supplied thereto; an elongated tool operatively associated with the vibration source and attached to the handpiece at a point where essentially no vibrational
A surgical instrument having a handpiece; a vibration source within the handpiece for generating mechanical vibrations in response to current supplied thereto; an elongated tool operatively associated with the vibration source and attached to the handpiece at a point where essentially no vibrational motion occurs; the tool extending away from the handpiece to a work site, whereby vibration of the working tip of the tool causes disintegration of hydrated biological material; a motor oberatively associated with the vibration source for rotating the tool and its working tip about its circumference through at least one revolution; a support structure located within the handpiece for mounting said vibration source and capable of independent longitudinal movement relative to the handpiece; a fingergrip for longitudinally reciprocating the support structure and tool towards and away from the work site independently of moving the handpiece; an open portion for irrigating the work site with fluid to assist in withdrawing removed biological material therefrom; and an aspiration system for withdrawing irrigation fluid and removed biological material from the work site. This instrument may also include a telescope for use as an endoscopic ultrasonic aspirator.
A surgical instrument comprising: a handpiece; a vibration source within the handpiece for generating mechanical vibrations in response to current applied thereto; elongated tool means operatively associated with said vibration source and attached to said handpiece at a point where essentially no vi
A surgical instrument comprising: a handpiece; a vibration source within the handpiece for generating mechanical vibrations in response to current applied thereto; elongated tool means operatively associated with said vibration source and attached to said handpiece at a point where essentially no vibrational motion occurs, said tool means extending away from said handpiece to a work site, whereby vibration of said tool means causes disintegration and removal of hydrated biological material; means connected to said vibration source at said point where essentially no vibrational motion occurs, for rotating said vibrational source and said elongated tool means about their circumference through at least one revolution; said rotating means enabling said elongated tool means to remove non-hydrated biological material; means for irrigating said work site with fluid to assist in withdrawing removed biological material therefrom; and aspiration means for withdrawing irrigation fluid and removed biological material from said work site; wherein the elongated tool means has a length of G4+n G2 where n is 0 or a positive integer and G
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