Variable thickness tacking devices and methods of delivery...

A - Human Necessities – 61 – B

Patent

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Details

A61B 17/064 (2006.01) A61B 17/068 (2006.01)

Patent

CA 2747258

The present embodiments provide a tacking device for engaging tissue, which may be useful for coupling a graft member to tissue or facilitating closure of a bodily opening. In one embodiment, the tacking device comprises a main body having proximal and distal ends, a proximal base member disposed at the proximal end of the main body, and at least one tissue engaging member disposed at the distal end of the main body. A spring member is disposed to surround the main body and extends from the proximal base member. In use, the spring member has a relaxed state in which it is biased to extend distally towards the at least one tissue engaging member, and further has a compressed state in which the distal end of the spring member is spaced further apart from the at least one tissue engaging member. Therefore, one or more tissue segments of varying thickness are adapted to be captured between the distal end of the spring member and the at least one tissue engaging member. A delivery system and methods for deploying the tacking device also are provided.

Les modes de réalisation de la présente invention concernent un dispositif de maintien en place conçu pour venir en contact avec un tissu, lequel dispositif peut être utilisé pour relier un élément de greffon et un tissu ou pour favoriser la fermeture d'une ouverture corporelle. Dans un mode de réalisation, le dispositif de maintien en place comprend un corps principal qui présente une extrémité distale et une extrémité proximale, un élément de base proximal placé à l'extrémité proximale du corps principal et au moins un élément de contact avec le tissu, placé à l'extrémité distale du corps principal. Un élément ressort est placé de manière à entourer le corps principal et s'étend à partir d'élément de base proximal. En service, l'élément ressort présente un état relâché dans lequel il est contraint de s'étendre en direction distale vers ledit au moins un élément de contact avec le tissu, et présente également un état comprimé dans lequel son extrémité distale est plus éloignée dudit au moins un élément de contact avec le tissu. Il est ainsi possible de capturer un ou plusieurs segments de tissu de différentes épaisseurs entre l'extrémité distale de l'élément ressort et ledit au moins un élément de contact avec le tissu. L'invention concerne également un système de mise en place et des procédés permettant de déployer le dispositif de maintien en place.

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