Surgical stapling systems

A - Human Necessities – 61 – B

Patent

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Details

A61B 17/064 (2006.01) A61F 2/00 (2006.01)

Patent

CA 2722233

Interengaging surgical staples (11, 31, 51, 71) are provided that are useful in systems for the surgical correction of defects in cardiac valves and/or supporting weaknesses in abdominal regions. The staples are constructed with at least one ring (21, 41, 61, 81) extending laterally from the upper end of one staple leg (15, 35, 55, 75), which once implanted provides for interengagement with the next staple by passage of the other leg (13, 33, 53, 73) of it therethrough. Either shape-memory staple design or an implantation tool causes the two staple legs to curve respectively toward each other once having penetrated the tissue, thus gathering and constricting the tissue in a region below the surface thereof. Elastic sections (67, 83) may be provided in the crown connectors to allow flex in the plane thereof.

La présente invention concerne des agrafes dengagement mutuel (11, 31, 51, 71) utiles dans des systèmes de correction chirurgicale de défauts dans des valvules cardiaques et/ou dinsuffisances de support dans des régions abdominales. Les agrafes sont construites avec au moins un anneau (21, 41, 61, 81) sétendant latéralement depuis une extrémité supérieure dune branche dagrafe (15, 35, 55, 75), qui une fois implantée assure un engagement mutuel avec lagrafe suivante par le passage traversant de son autre branche (13, 33, 53, 73). La modèle dagrafe à mémoire de forme ou un outil dimplantation entraîne le recourbement respectif des deux branches dagrafe lune vers lautre suite à leur pénétration dans le tissu, entraînant ainsi lassemblage et la constriction du tissu dans la zone en-dessous de sa surface. Des sections élastiques (67, 83) peuvent être prévues dans les connecteurs au sommet pour permettre une flexion dans le plan de ceux-ci.

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