Peripheral vascular delivery catheter
First Claim
Patent Images
1. An assembled catheter assembly comprising:
- an elongate member having a distal end, a proximal end, a lumen between said proximal end and said distal end, a distal region adjacent said distal end, a proximal region located proximally from said distal region, a polymeric outer filler layer extending along at least a portion of said elongate member, and an axis between said distal end and said proximal end, wherein said distal region comprises;
a.) an inner lubricious layer forming a portion of said lumen, b.) a kink-resisting member exterior to said inner lubricious layer having a distal end and a proximal end wherein said proximal region does not contain said kink-resisting member, said polymeric outer layer being exterior to said kink-resisting member, c.) a junction region being exterior to said inner lubricious layer and proximal of said kink-resisting member, said junction region being axially adjacent to said proximal end of said kink-resisting member, and wherein said junction region comprises and is assembled from at least two interfitting conical members during at least one assembly step, one conical member having a male conical surface and one conical member having a female conical surface, said one conical member having a male conical surface being slideable with respect to said one conical member having a female conical surface during said at least one assembly step.
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Accused Products
Abstract
This is a delivery catheter assembly used typically, but not exclusively, in the peripheral vasculature of the human body. The catheter is configured in such a way that the lumen is exceptionally large and the catheter wall is exceptionally thin for a catheter of this class. The distal portion of the catheter contains a kink-resisting member, preferably a super-elastic alloy ribbon braid, which is embedded in the catheter wall. Proximally of the kink-resisting member, the catheter typically will have no other kink-resisting members. Finally, the catheter assembly uses long conical joints between component tubular members to provide smooth and strong transitions between those members.
203 Citations
29 Claims
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1. An assembled catheter assembly comprising:
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an elongate member having a distal end, a proximal end, a lumen between said proximal end and said distal end, a distal region adjacent said distal end, a proximal region located proximally from said distal region, a polymeric outer filler layer extending along at least a portion of said elongate member, and an axis between said distal end and said proximal end, wherein said distal region comprises;
a.) an inner lubricious layer forming a portion of said lumen, b.) a kink-resisting member exterior to said inner lubricious layer having a distal end and a proximal end wherein said proximal region does not contain said kink-resisting member, said polymeric outer layer being exterior to said kink-resisting member, c.) a junction region being exterior to said inner lubricious layer and proximal of said kink-resisting member, said junction region being axially adjacent to said proximal end of said kink-resisting member, and wherein said junction region comprises and is assembled from at least two interfitting conical members during at least one assembly step, one conical member having a male conical surface and one conical member having a female conical surface, said one conical member having a male conical surface being slideable with respect to said one conical member having a female conical surface during said at least one assembly step. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. An assembled catheter assembly comprising:
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an elongate member having a distal end, a proximal end, a lumen between said proximal end and said distal end, a distal region adjacent to said distal end, a proximal region located proximally from and contiguously adjacent said distal region, a polymeric outer filler layer extending along at least a portion of said elongate member, and an axis between said distal end and said proximal end, said catheter assembly having no butt joints between said distal end and said proximal end, wherein said distal region comprises;
a.) an inner lubricious layer forming a first portion of said lumen, b.) a woven braid member exterior to said inner lubricious layer and having a distal end and a proximal end, said polymeric outer filler layer being exterior to said kink-resisting member, c.) a junction region being exterior to said inner lubricious layer and proximal of said woven braid member, said junction region being axially adjacent to said proximal end of said woven braid member, and wherein said junction region comprises and is assembled from at least two interfitting conical members during at least one assembly step, one conical member having a male conical surface and one conical member having a female conical surface, said one conical member having a male conical surface being slideable with respect to said one conical member having a female conical surface during said at least one assembly step, said junction region having a ration of ajunction region length to a junction region outer diameter of between 3;
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1,and wherein said more proximal region comprises;
a.) an exterior layer extending from said junction region to said elongate member proximal end, b.) said inner lubricious layer extending to said elongate member proximal end, forming the remainder of said lumen and c.) a connector opening into said lumen. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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Specification