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AssigneeKaneka Corporation
InventorsKohei Fukaya, Hiromi Maeda, Takuji Nishide, Shogo Miki, Ryoji Nakano, Masato Hashiba
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A balloon catheter 1 is configured so as to comprise a catheter shaft 2 formed by joining a proximal-side tubular member 3 and a distal-side tubular member 4, an adapter member 6 connected to the base end of the catheter shaft 2, and a balloon 5 joined to the distal end of the catheter shaft 2. A metal coiled elastic member 10 is deployed in the internal space in the adapter member 6, so that it can move toward the distal end. This coiled elastic body 10 abuts on a ring-shaped wall part 11a formed on the outer circumferential surface of the base end of an elastic force transmitting member 11 and supports the elastic force transmitting member 11 to the distal side. The leading end of a linear member 12 that is one of the components of the elastic force transmitting member 11 reaches to an internal space 5f in the balloon and is bonded to the outer circumferential surface of a guide wire passing tube 7. Thus the elastic supporting force of the coiled elastic body 10 is transmitted via the elastic force transmitting member 11 to the distal-side sleeve part 5d of the balloon 5, and tension is imparted to the balloon 5 in the axial direction.
A balloon catheter for use in therapy and surgery for purpose of dilation operations, configured by deploying a balloon at the distal end of a catheter shaft, having a guide wire passing tube that passes through interior of said balloon at the distal part of said catheter, and is joined to the distal part of said balloon, wherein there is provided a tension generation means for generating tension in the axial direction in said balloon by applying a force in the axial direction to the distal part of said guide wire passing tube when assembling or using said balloon catheter.
Dependencies are inferred from the claim text.