Inflatable prosthesis

A - Human Necessities – 61 – F

Patent

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Details

A61F 2/02 (2006.01) A61F 2/00 (2006.01)

Patent

CA 2134300

An inflatable prosthesis is disclosed which comprises a structural member having a bore dimensioned to receive a needle formed in its back end. An elastomeric balloon has a back end in sealing engagement with the structural member and has a front end extending beyond the front end of the structural member such that a portion of the structural member is contained within the balloon. A port is defined in the structural member for placing the bore in fluid communication with a port location exterior of the structural member which is contained within the balloon, whereby fluid infused into the bore passes through the port and into a space between the balloon and the exterior surface of the structural member to inflate the balloon. An elastomeric member has one portion attached to the structural member and another portion attached to the front end of the balloon so as to partially constrain axial expansion of the prosthesis as the balloon is inflated.

Prothèse gonflable comprenant un élément de structure présentant un alésage dimensionné pour recevoir une aiguille formée à son extrémité arrière. Un ballonnet d'élastomère présente une extrémité arrière en engagement étanche avec l'élément de structure, ainsi qu'une extrémité avant s'étendant au-delà de l'extrémité avant de l'élément de structure, de façon à ce qu'une partie de l'élément de structure soit contenue dans le ballonnet. Un orifice formé dans l'élément de structure permet de placer l'alésage en libre communication avec une zone d'orifice à l'extérieur de cet élément, dans le ballonnet. Le liquide infusé dans l'alésage traverse l'orifice vers un espace situé entre le ballonnet et la surface extérieure de l'élément de structure afin de permettre le gonflement du ballonnet. Un élément d'élastomère comprend une partie fixée à l'élément de structure ainsi qu'une autre partie fixée à l'extrémité avant du ballonnet, afin de freiner partiellement l'expansion axiale de la prothèse durant le gonflement du ballonnet.

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