EP0808637A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Multi-layer distal catheter section
Assignee: Target Therapeutics Inc
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Filing: 1997-05-22
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Granted: —
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Expires: 2017-05-22
Abstract
Abstract This is a distal-most section of a catheter suitable for treating a tissue target within the body, which target is accessible through the vascular system. Central to the invention is a multi-component or multi-layer catheter section used distally on an endovascular catheter. In particular, the inventive catheter section has at least one interior stiffener member and an exterior tubing member. Between the at least one interior stiffener member and the exterior tubing member is a metallic braid. <IMAGE>
Inventors
- 👤 Gene Samson
- 👤 Kim Nguyen
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-24 07:10
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/0043; A61M25/0045; A61M25/005; A61M25/0053
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
86 words
A catheter section comprising: an elongate tubular member having a proximal end and a distal end and a passageway defining an inner lumen extending between those ends, the elongate tublar member comprising: a) an inner polymeric stiffener liner comprising LDPE, LLDPE, or mixtures of LLDPE or LDPE with EVA, b) a tubular metallic braid located coaxially about said inner polymeric stiffener liner, and c) an outer tubular cover, comprising irradiated and heat-shrunk blend of LLDPE or LDPE with EVA, located coaxially about said tublar metallic braid.
Claim 2
Dependent Claim
12 words
The catheter section of claim 1, further comprising a distal radio-opaque marker.
Claim 3
Dependent Claim
17 words
The catheter section of claim 1 or claim 2, wherein the braid comprises a super-elastic nickel-titanium alloy.
Claim 4
Dependent Claim
17 words
The catheter section of claim 1 or claim 2, wherein the braid comprises a stainless steel alloy.
Claim 5
Dependent Claim
23 words
The catheter section of any one of the preceding claims, wherein the inner polymeric liner comprises a distal section and a proximal section.
Claim 6
Dependent Claim
35 words
The catheter section of claim 5 wherein the distal section of the inner polymeric liner has a wall thickness which is thinner than a wall thickness of the proximal section of the inner polymeric liner.
Claim 7
Dependent Claim
23 words
The catheter section of any one of the preceding claims, wherein the outer cover comprises an LDPE blend containing up to 15% EVA.
Claim 8
Dependent Claim
26 words
The catheter of any one of the preceding claims, further comprising a lubricious layer consisting essentially of FEP and located coaxially within the inner polymeric liner.
Claim 9
Dependent Claim
21 words
The catheter of any one of the preceding claims, wherein at least one of the liner and cover materials is radio-opaque.
Claim 10
Dependent Claim
18 words
The catheter section of claim 1, additionally comprising at least one more proximal tubular catheter section comprising polymers.
Claim 11
Dependent Claim
20 words
The catheter section of claim 10, additionally comprising at least one more proximal tubular catheter section consisting essentially of polymers.
References Cited (Backward Citations)
No citation records indexed.
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