Balloon catheter with flexible radiopaque polymeric marker
First Claim
1. A balloon catheter having an elongate shaft with a proximal section and a relatively short distal section, the distal section comprising:
- a) a distal inner tubular member comprising a first polymer, and having a longitudinal axis, an outer surface and an inner surface;
b) an inflatable balloon disposed about the distal inner tubular member, and having a proximal end, a distal end, and an interior disposed between the proximal and distal end; and
c) a tubular flexible radiopaque marker comprising a second polymer located at the distal inner tubular member and disposed within the inflation member interior, having an inner surface and an outer surface that is substantially radially congruent with the outer surface of the distal inner tubular member, such that the longitudinal transition between the outer surface of the marker and the outer surface of the distal inner tubular member is smooth.
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Accused Products
Abstract
An elongated intracorporeal device, more specifically, a balloon catheter having an elongate shaft with a distal section. The distal section of the shaft has a distal inner tubular member with an inflatable balloon disposed about the distal inner tubular member. A radiopaque marker formed at least in part of a polymer is disposed on the distal inner tubular member. The flexible radiopaque marker can be formed either by doping a desired portion of the distal inner tubular member with an appropriate radiopaque material, or preforming the radiopaque marker from a polymer doped with a radiopaque material and subsequently securing the radiopaque marker to the distal inner tubular member.
110 Citations
19 Claims
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1. A balloon catheter having an elongate shaft with a proximal section and a relatively short distal section, the distal section comprising:
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a) a distal inner tubular member comprising a first polymer, and having a longitudinal axis, an outer surface and an inner surface;
b) an inflatable balloon disposed about the distal inner tubular member, and having a proximal end, a distal end, and an interior disposed between the proximal and distal end; and
c) a tubular flexible radiopaque marker comprising a second polymer located at the distal inner tubular member and disposed within the inflation member interior, having an inner surface and an outer surface that is substantially radially congruent with the outer surface of the distal inner tubular member, such that the longitudinal transition between the outer surface of the marker and the outer surface of the distal inner tubular member is smooth. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification