초록 ▼

A surgical instrument having a body with a proximal end and a distal end, a working element, first structure for mounting the working element on the body for movement relative to the body between first and second positions, and second structure on the body for a) moving the working element selective

A surgical instrument having a body with a proximal end and a distal end, a working element, first structure for mounting the working element on the body for movement relative to the body between first and second positions, and second structure on the body for a) moving the working element selectively between the first and second position from a location remote from the working element and b) maintaining the working element in each of the first and second positions. The second structure includes an actuating element and third structure for mounting the actuating element on the body for movement relative to the body.

대표청구항 ▼

[ I claim:] [1.] A surgical instrument comprising:a body having a proximal end and a distal end spaced longitudinally from the proximal end;a working element,first means for mounting the working element on the body for movement relative to the body in first and second opposite directions between fir

[ I claim:] [1.] A surgical instrument comprising:a body having a proximal end and a distal end spaced longitudinally from the proximal end;a working element,first means for mounting the working element on the body for movement relative to the body in first and second opposite directions between first and second positions; andsecond means on the body for a) moving the working element selectively between the first and second positions from a location remote from the working element, and b) maintaining the working element in each of the first and second positions such that the working element is substantially fixed against movement in either of the first and second opposite directions with the working element in each of the first and second positions, said second means includingan actuating element manually pivotable relative to the body to pivot a first helical thread, said actuating element being substantially fixed against longitudinal movement relative to the body,a reciprocable control member disposed around said body and longitudinally movable relative thereto, said reciprocable control having a second helical thread engaging said first helical thread,a longitudinally extending slot in said body,a control element extending through said body and reciprocable longitudinally relative to the body, said control element connected to the working element for actuating movement of the working element between the first and second positions, anda guide pin extending into and longitudinally movable in said body slot, said guide pin being secured to said reciprocable control member and to said longitudinal control element.