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EP0739641A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Formable tip guidewire

Assignee: Cordis Corp
•
Filing: 1996-04-26
•
Granted: —
•
Expires: 2016-04-26
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Abstract

Abstract The formable tip guidewire has a proximal area and a distal area and comprises: a coiled spring wire situated in the distal area; a central core wire having one diameter to which a proximal end of the coiled spring wire is attached and a reduced diameter shaft or rod portion in a distal area of the guidewire; a rounded tip member; a distal end of the rod portion being fixed to the rounded tip member; the coils of the coiled spring wire in the distal area of the guidewire being spaced apart to provide greater flexibility; and, a sleeve member of formable material having a desired degree of plasticity being situated in the distal area of the coiled spring wire within the coils of the coiled spring wire in the distal area and around and in contact with the distal rod portion of the core wire.

Inventors

  • 👤 Alvaro Arenas

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-23 10:07
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/01; A61M25/09; A61M2025/09058; A61M2025/09083; A61M2025/09175

Claims Analysis

Total Claims: 9
Claim 1
Independent Claim 143 words
A formable tip guidewire having a proximal area and a distal area and comprising: a coiled spring wire situated in said distal area; a central core wire having one diameter to which a proximal end of said coiled spring wire is attached and a reduced diameter shaft or rod portion in a distal area of the guidewire; a rounded tip member; a distal end of said rod portion being fixed to said rounded tip member; the coils of said coiled spring wire in the distal area of the guidewire being spaced apart to provide greater flexibility; and a member of formable material having a desired degree of plasticity being situated in said distal area of said coiled spring wire within said coils of said coiled spring wire in said distal area and in contact with said distal rod portion of said core wire.
Claim 2
Dependent Claim 12 words
The guidewire according to claim 1, wherein said member is a sleeve.
Claim 3
Dependent Claim 24 words
The formable tip guidewire according to anyone of claims 1 to 2 wherein a distal end portion of said distal core rod is tapered.
Claim 4
Dependent Claim 21 words
The formable tip guidewire according to anyone of claims 2 to 3 wherein said formable sleeve member is made of metal.
Claim 5
Dependent Claim 24 words
The formable tip guidewire according to anyone of claims 2 to 4 wherein said formable sleeve member has a length of approximately 5 mm.
Claim 6
Dependent Claim 30 words
The formable tip guidewire according to anyone of claims 2 to 5 wherein said formable sleeve member extends a significant length of said distal rod portion of said core wire.
Claim 7
Dependent Claim 24 words
The formable tip guidewire according to anyone of claims 2 to 6 wherein said formable sleeve member is made of a titanium nickel alloy.
Claim 8
Dependent Claim 41 words
The formable tip guidewire according to anyone of claims 2 to 7 wherein said coils in said distal area are stretched or spaced apart in the formable/deformable region where said sleeve member is situated to enhance bendability in said formable/deformable region.
Claim 9
Dependent Claim 41 words
The formable tip guidewire according to anyone of claims 2 to 8 wherein said coiled spring wire has a distal end portion and said formable sleeve member is located just proximal of said distal end portion of said coiled spring member.

References Cited (Backward Citations)

EP0247371A1 Cited
US4763647A Cited
US4846186A Cited
WO1992007594A1 Cited
WO1993020883A1 Cited
US5372144A Cited

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