Endoscopic rongeur-type surgical instrument
First Claim
1. A surgical instrument of the rongeur type comprising a fixed handle (2) receiving, about an axis of rotation (5), an elastically loaded moving handle (4), a fixed jaw (3) secured at one of its ends to a nose (25) with a cutting profile and a moving jaw (6) guided in translation on the fixed jaw (3) as the moving handle (4) pivots about the axis of rotation (5) so that its free end with cutting edges (45) collaborate with those (27) of the fixed jaw (3), characterized in that the moving jaw (6) comprises an internal passage (44) forming a store for the cut pieces of bone tissue (56), while the fixed jaw (3) comprises transfer means (30) which collaborate with the moving jaw (6) to allow the cut pieces of bone tissue (56) to enter a space (41) belonging to the moving jaw (6) and situated in the continuation of the passage (44).
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Accused Products
Abstract
The invention relates to a rongeur-type surgical instrument comprising a fixed handle (2) which receives an elastically-loaded movable handle (4) around an axis of rotation (5), a fixed clamping jaw (3), one end of which is solidly connected to a cutting jaw, (25) and a movable clamping jaw (6). The movable clamping jaw moves in translation on the fixed clamping jaw (3) when the movable handle (4) pivots around the axis of rotation (5) in such a way that the sharp edges (45) of the free end thereof co-operate with the sharp edges (27) of the fixed clamping jaw (3). Said movable clamping jaw (6) comprises an internal channel (44) which stores the fragments of cut bone tissue (56), while the fixed clamping jaw (3) comprises transfer means (30) which co-operate with the movable clamping jaw (6) in order to enable the fragments of cut bone tissue (56) to penetrate a space (41) in the movable clamping jaw (6) which is disposed in the extension of the channel (44).
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Citations
21 Claims
- 1. A surgical instrument of the rongeur type comprising a fixed handle (2) receiving, about an axis of rotation (5), an elastically loaded moving handle (4), a fixed jaw (3) secured at one of its ends to a nose (25) with a cutting profile and a moving jaw (6) guided in translation on the fixed jaw (3) as the moving handle (4) pivots about the axis of rotation (5) so that its free end with cutting edges (45) collaborate with those (27) of the fixed jaw (3), characterized in that the moving jaw (6) comprises an internal passage (44) forming a store for the cut pieces of bone tissue (56), while the fixed jaw (3) comprises transfer means (30) which collaborate with the moving jaw (6) to allow the cut pieces of bone tissue (56) to enter a space (41) belonging to the moving jaw (6) and situated in the continuation of the passage (44).
Specification