EP0358117B1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Composite vascular catheter
Assignee: Abbott Cardiovascular Systems Inc
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Filing: 1989-08-31
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Granted: 1995-05-31
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Expires: 2009-08-31
Abstract
No abstract record available.
Inventors
- 👤 Philip C. Evard Evard
- 👤 Timothy R. Machold
- 👤 Bojana Spahic-Kolar
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-06 20:08
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/0043; A61M25/005; A61M25/0053
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
257 words
A vascular catheter for angioplasty procedures having an elongated catheter body made of: an elongated outer tubular member (11) with proximal and distal ends; an inflatable balloon (12) which has a distal end and which is on the distal extremity of the outer tubular member (11), an elongated inner tubular member (13) which is disposed within the outer tubular member (11) thereby forming an annular inflation lumen (14) therebetween, said inner tubular member (13) having a distal end bonded to the distal end of the balloon (12) and having an inner lumen (16) adapted to receive a guidewire (17) therein, said catheter being characterized in that: said inner tubular member has a longitudinally flexible tubular substrate (21) with a resin-impregnated first fibrous layer (23) extending from the proximal end to the distal end thereof and formed from at least one continuous strand wrapped or braided around the tubular substrate (21) at an angle bigger than 20 degrees and less than 85 degrees with respect to the longitudinal axis of the tubular substrate (21); and the inner tubular member has a second resin-impregnated fibrous layer (26) which extends over the first fibrous layer (23) from the proximal end of the inner tubular member (13) to a location proximal to the distal end of the inner tubular member and which is formed from at least one continuous strand wrapped or braided at an angle bigger than 20 degrees and less than 85 degrees with respect to the longitudinal axis of the tubular substrate (21) over the first layer (23).
Claim 2
Dependent Claim
24 words
The catheter of claim 1 further characterized in that the first fibrous layer (23) is formed from one or more strands of multi-filament fibers.
Claim 3
Dependent Claim
40 words
The catheter of either of the preceding claims further characterized in that the distal end of the balloon (12) is secured to the guidewire (17) which extends through the interior of the balloon (12) and out the distal end thereof.
Claim 4
Dependent Claim
24 words
The catheter of claim 2 wherein the multi-filament fiber is made from a material selected from the group consisting of aramid, nylon and polyester.
Claim 5
Dependent Claim
29 words
The catheter of any one of the preceding claims wherein the wraps of the continuous strand about the tubular substrate are exposed immediately adjacent to preceding and following wraps.
Claim 6
Dependent Claim
59 words
The catheter of any one of claims 1 through 3 and 4 wherein the first fibrous layer (23) has a plurality of strand wraps in the distal portion thereof oriented at an angle with respect to the longitudinal axis of the tubular substrate (21) of 20 degrees to 45 degrees greater than the strand wrap in the proximal portion.
Claim 7
Dependent Claim
35 words
The catheter of claim 6 wherein the plurality of strand wraps in the distal portion are oriented at an angle between 60° and 85° with respect to the longitudinal axis of the tubular substrate (21).
Claim 8
Dependent Claim
36 words
The catheter of claim 6 wherein a plurality of strand wraps in the proximal portion are oriented at an angle of from 30° to 60° with respect to the longitudinal axis of the tubular substrate (21).
Claim 9
Dependent Claim
34 words
The catheter of any one of the preceding claims wherein the first fibrous layer (23) is formed of a continuous strand which is wound snugly about the tubular substrate (21) and impregnated with resin.
Claim 10
Dependent Claim
13 words
The catheter of claim 8 wherein the impregnated resin is an epoxy resin.
Claim 11
Dependent Claim
45 words
The catheter of claim 9 wherein the strand wraps on the proximal portion are longitudinally spaced from each other a distance of 2 to 6 times the width Of the wrapped strand and the strand wraps in the distal portion are adjacent to one another.
Claim 12
Dependent Claim
56 words
The vascular catheter of any one of the preceding claims further characterized in that the continuous strand is wrapped about the distal portion of the tubular substrate (21) at an angle with respect to the longitudinal axis thereof between 30° and 40° greater than the strand wrap on the proximal portion of the tubular member (21).
Claim 13
Dependent Claim
39 words
The catheter of claim 6 further characterized in that each layer comprises at least one strand wound about the tubular substrate from the proximal end thereof to the distal termination of the layer and back to the proximal end.
Claim 14
Dependent Claim
60 words
The catheter of claim 1 further characterized in that the first fibrous layer (23) is formed by a continuous strand which is snugly wrapped along the substrate (21) in one direction inclined toward the distal end of the inner tubular member (13) and along the substrate (21) in another direction inclined toward the proximal end of the inner tubular member.
Claim 15
Dependent Claim
27 words
The catheter of any one of the preceding claims further characterized in that the outer tubular member (11) and the inflatable balloon (12) are of unitary construction.
Claim 16
Dependent Claim
30 words
The catheter of any one of the preceding claims wherein the balloon (12) has a proximal end which is secured to the distal end of the outer tubular member (11).
Claim 17
Dependent Claim
28 words
The catheter of any one of the preceding claims including a guidewire (17) that is slidably disposed within the inner lumen (16) of the inner tubular member (13).
References Cited (Backward Citations)
No citation records indexed.
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