Instrument assemblies for performing anatomical tissue ligation

Details Instrument assemblies for performing anatomical tissue ligation Instrument assemblies for performing anatomical tissue ligation

A - Human Necessities

61

B

A61B 17/00 (2006.01) A61B 17/12 (2006.01) A61B 17/04 (2006.01) A61B 17/28 (2006.01) A61B 19/00 (2006.01)

Patent

CA 2288180

An instrument assembly (10) for performing anatomical tissue ligation, includes a passage defining member (12) having a distal end (20) for being disposed at an internal operative site, a proximal end for being disposed externally of the internal operative site, and a passage (24) between the distal and proximal ends. A grasping member (16) is disposed at the distal end (20) of the passage defining member (12) for grasping anatomical tissue at the internal operative site. A contractible ligature loop (78) of filamentous ligature material (76) is carried by the passage defining member (12), and is disposed externally of the distal end (20) thereof for positioning around the anatomical tissue grasped by the grasping member (16). The ligature loop (78) is contractible from externally of the internal operative site around the anatomical tissue to form a ligature, allowing a complete anatomical tissue ligation to be performed with a single instrument assembly (10).

Cet assemblage d'instruments (10), qui permet de réaliser une ligature de tissu anatomique, comporte un élément (12) définissant un passage et dont une extrémité distale (20) est conçue pour se placer dans un site d'intervention interne, l'extrémité proximale étant conçue pour se placer à l'extérieur du site d'intervention interne, le passage (24) joignant l'extrémité proximale à l'extrémité distale. Un organe de préhension (16) est disposé au niveau de l'extrémité distale de l'élément (12) définissant le passage de façon à saisir le tissu anatomique au niveau du site d'intervention interne. L'élément (12) définissant le passage porte une boucle de ligature resserrable (78) en matériau filamenteux de ligature (76), laquelle boucle se place extérieurement par rapport à l'extrémité distale (20) de façon à venir entourer le tissu anatomique saisi par l'élément de préhension (16). La boucle de ligature (78) peut, par une manoeuvre commandée de l'extérieur du site d'intervention interne, se resserrer autour du tissu anatomique, ce qui permet de réaliser une ligature complète de tissu anatomique avec un seul assemblage d'instruments (10).

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