Methods and devices for soft tissue securement

A - Human Necessities – 61 – B

Patent

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A61B 17/03 (2006.01) A61B 1/00 (2006.01) A61B 18/00 (2006.01)

Patent

CA 2541802

Devices and methods for improved soft tissue securement, in particular, tissue anchoring elements (30) and deployment (68) thereof. Such tissue anchoring elements may comprise a linkage element (36) and an array of spreading elements (38). Endoscopic devices (68) and methods are disclosed for deploying multiple anchoring elements to multiple sites and manipulating some associated linkage elements to approximate selected sites. Applications of such endoscopic devices and methods may include endoluminal therapy including gastroplasty, which may be used for the treatment of obesity and gastroesophageal disease. Such devices and methods may also include the attachment of a foreign body (20) to a tissue mass. Devices and methods may modify (44) mechanical properties of zones surrounding anchoring sites to decrease the likelihood that anchoring elements will pull out. Such modifications may include irritating or injuring the tissue within the zone, thereby causing a healing or scarification response, or may alternatively include deploying a solidifying agent within the zone.

L'invention a trait à dispositifs et à des procédés de fixation améliorée à des tissus mous, en particulier à des éléments d'ancrage (30) à des tissus et au déploiement (68) de ceux-ci. Ces éléments d'ancrage à des tissus peuvent comprendre un élément d'attache (36) et un réseau d'éléments d'extension (38). L'invention concerne également des dispositifs endoscopiques (68) et des procédés permettant de déployer plusieurs éléments d'ancrage sur plusieurs sites et de manipuler certains éléments d'attache associés vers des sites de proximité sélectionnés. Parmi les applications associées auxdits dispositifs endoscopiques et procédés, on peut citer la thérapie endoluminale, notamment la gastroplastie, utilisée pour le traitement de l'obésité et des maladies gastro-oesophagiennes. Lesdits dispositifs et procédés peuvent également impliquer une liaison d'un corps étranger (20) à une masse de tissus. Lesdits dispositifs et procédés peuvent modifier (44) les propriétés mécaniques de zones qui entourent les sites de fixation afin de réduire la probabilité de retrait des éléments d'ancrage. Ces modifications peuvent consister à irriter ou à endommager les tissus dans une zone, ce qui permet de provoquer une réponse de cicatrisation ou de scarification, ou en variante à déployer un agent de solidification dans ladite zone.

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