Patent ID: 6273917
Filing Date: 2001-08-14
Classification: A61F

Abstract:
An appliance to be implanted comprising a front end wire ring, a rear end wire ring-arranged facing to the front end wire ring, a tubular cover which connects the front and rear end wire rings, and an intermediate wire ring arranged between the front and rear end wire rings, in which each of the wire rings is given flexibly foldable elasticity, andcharacterized by that the appliance to be implanted has an arrangement in which each of the front and rear end wire rings and at least the intermediate wire rings arranged adjacent to the front and rear end wire rings is connected with the cover through a film member so that each of the wire rings can make a back and forth movement relative to the cover within a certain range and that an annular gap formed between each of the wire rings and the cover is liquid-tightly sealed.