초록 ▼

The invention is directed to a catheter formed at least in part of a multilayered member having a first layer which is fusion bondable to another catheter component such as the skirt of an inflatable balloon and a second layer which is adjacent the first layer having a melting point greater than the

The invention is directed to a catheter formed at least in part of a multilayered member having a first layer which is fusion bondable to another catheter component such as the skirt of an inflatable balloon and a second layer which is adjacent the first layer having a melting point greater than the first layer so that the multilayered member of the catheter is not deformed when the other catheter component is fusion bonded to the first layer of the multilayered member. The second layer is preferably lubricious in nature. In one embodiment of the invention, the multilayered member is a tubular element with the lubricious second layer defining an inner lumen extending within the tubular element. The outer layer of the tubular member may extend beyond the distal end of the inner layer and form a non-traumatic distal tip. Alternatively, a flexible non-traumatic distal tip may be fusion bonded to at least the outer layer of the multilayered tubular member.

대표청구항 ▼

The invention is directed to a catheter formed at least in part of a multilayered member having a first layer which is fusion bondable to another catheter component such as the skirt of an inflatable balloon and a second layer which is adjacent the first layer having a melting point greater than the

The invention is directed to a catheter formed at least in part of a multilayered member having a first layer which is fusion bondable to another catheter component such as the skirt of an inflatable balloon and a second layer which is adjacent the first layer having a melting point greater than the first layer so that the multilayered member of the catheter is not deformed when the other catheter component is fusion bonded to the first layer of the multilayered member. The second layer is preferably lubricious in nature. In one embodiment of the invention, the multilayered member is a tubular element with the lubricious second layer defining an inner lumen extending within the tubular element. The outer layer of the tubular member may extend beyond the distal end of the inner layer and form a non-traumatic distal tip. Alternatively, a flexible non-traumatic distal tip may be fusion bonded to at least the outer layer of the multilayered tubular member. f the bar in the recess. 4. The fixator as claimed in claim 3, wherein the tapped hole opening into said recess in such a way that its axis is situated outside the center of said zone of partially spherical shape, toward the side of said body via which said spherical part is introduced into the recess. 5. The fixator as claimed in claim 1, wherein the body of each pin-holder assembly has at least one bore passing through it, to permit engagement of a pin, and at least one tapped hole substantially perpendicular to this bore and opening into the latter; each tapped hole receives a screw which, when tightened, makes it possible to clamp the pin in the corresponding bore in order to immobilize this pin in a defined position relative to said body. 6. The fixator as claimed in claim 1, wherein the bar is made of a synthetic material molded to the desired shape. 7. The fixator as claimed in claim 6, wherein the bar is made of a radiotransparent material. 8. The fixator as claimed in claim 6, wherein the bar is made of a resin reinforced with carbon fibers. 9. The fixator as claimed in claim 1, wherein the pin-holder assemblies are made of a synthetic material permitting sterilization by autoclave or gamma rays.