| 摘要 |
<p>The invention relates to instruments for surgery, particularly endoscopic surgery. In a first aspect the invention provides an instrument for placing sutures comprising an elongate shaft (20) terminating in a head (30) with a needle (31) having a tip (37), wherein said needle (31) has means (36) for releasable retaining suturing material and wherein said head (30) is profiled so that axial rotation of the shaft (20) moves the tip (37) forwardly of the instrument to draw suturing material forwardly and through tissue. In a second aspect the invention provides an instrument for pushing and retrieving ligatures comprising an elongate shaft (70) terminating in a head (80) with a suture material engaging portion (85), said engaging portion (85) comprising first and second opposed curved surfaces (87a, 87b) wherein the first curved surface (87b) is adapted to allow the suture material to be pushed toward a patient and the second curved surface (87a) is adapted to allow the suture material to be pulled away from a patient.</p> |
