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| 국가/구분 | United States(US) Patent 등록 |
|---|---|
| 국제특허분류(IPC7판) |
|
| 출원번호 | US-0869535 (1992-04-15) |
| 발명자 / 주소 |
|
| 출원인 / 주소 |
|
| 인용정보 | 피인용 횟수 : 639 인용 특허 : 0 |
A surgical instrument is provided that comprises two coaxial tubes mounted for relative telescoping motion, and a unitary jaw piece of springy material affixed to the remote end of one of said tubes and having two jaws normally biased apart to a selected open position. The other one of said tubes is
A surgical instrument is provided that comprises two coaxial tubes mounted for relative telescoping motion, and a unitary jaw piece of springy material affixed to the remote end of one of said tubes and having two jaws normally biased apart to a selected open position. The other one of said tubes is movable longitudinally relative to said one tube so that the forward end of the said other tube forces the jaws to close. The jaw piece includes a body section joined to the two jaws by spring leaves having a selected configuration, with the result that when the jaws are moved to closed position, the forward ends of the jaws engage one another before there is any engagement between the rear ends of the jaws. The jaw piece also has an opening permitting introduction of an ancillary device to a position permitting communication with the space between the jaws.
A surgical instrument comprising: a housing provided with an internal bore, and at least first and second concentrically arranged tubular elements extending longitudinally away from said housing, said first tubular element having proximal and distal ends and being affixed at its proximal end so as t
A surgical instrument comprising: a housing provided with an internal bore, and at least first and second concentrically arranged tubular elements extending longitudinally away from said housing, said first tubular element having proximal and distal ends and being affixed at its proximal end so as to be immobile with respect to said housing, and said second tubular element surrounding said first tubular element and being arranged to translate longitudinally with respect to said first tubular element; translation means for causing said second tubular element to translate longitudinally relative to said first tubular element, said translation means comprising a stationary handle member and a movable handle member pivotally secured to said stationary handle member, and means on said movable handle member for engaging means affixed to said second tubular element for translating said second tubular element relative to said first tubular element in response to relative movement of said handle members, said means affixed to said second tubular element comprising a gear rack provided with a series of teeth, and said means on said movable handle member comprising at least a toothed gear member in engagement with the teeth of said gear rack, said housing also having means for limiting movement of said gear rack in the forward and reverse direction; and a jaw piece affixed to said distal end of said first tubular element, said jaw piece being an integral structure comprising at least two jaws which are biased and normally deployed away from one another, a rear section, and intermediate leaf spring elements connecting each of said jaws to said rear section, said second tubular element being arranged to slide over said two jaws, whereby when said second tubular element is caused to translate towards the distal end of said first tubular element, said second tubular element will slide over said jaw piece and cause said jaws to close towards one another.
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