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EP0142330A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Guide wire for catheters

Assignee: Abbott Cardiovascular Systems Inc
•
Filing: 1984-11-08
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Granted: —
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Expires: 2004-11-08
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Abstract

Abstract A guide wire (11) comprising an elongate flexible cylindrical element (12) formed of metallic material having high torsional capability (e.g. stainless steel) and having a proximal portion having a diameter ranging from .008 to .02 inch (0.2 1 0.51 mm) and a distal portion having a diameter of less than .007 inch (0.18 mm). It also comprises a first coil (13) formed of metallic material (e.g. stainless steel) and secured to the distal portion and a second coil (16) formed of a material which is different from the material of which the first coil (13) is formed and which is substantially radiopaque (e.g. a platinum alloy) secured to the distal extremity of the first coil (13). In addition, it comprises a tip (19) having a rounded conformation secured to the distal extremity of the second coil (16).

Inventors

  • 👤 William J. Samson
  • 👤 Ronald G. Williams

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-24 16:12
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/01; A61M25/09; A61M25/09016; A61M25/09033; A61B; A61B17/00; A61B17/22; A61B2017/22001; A61M2025/09166; A61M2025/09175

Claims Analysis

Total Claims: 8
Claim 1
Independent Claim 113 words
A guide device comprising an elongate flexible cylindrical element formed of metallic material having high torsional capability and having a proximal portion having a diameter ranging from .008 to .02 inch (0.2 - 0.51 mm) and a distal portion having a diameter of less than .007 inch (0.18 mm), a first coil formed of metallic material and secured to said distal portion and a second coil formed of a material which is different from the material of which the first named coil is formed and which is substantially radiopaque secured to the distal extremity of the first coil and means having a rounded conformation secured to the distal extremity of the second coil.
Claim 2
Dependent Claim 113 words
A guide device comprising an elongate flexible cylindrical element formed of metallic material having high torsional capability and having a proximal portion having a diameter ranging from .008 to .02 inch (0.2 - 0.51 mm) and a distal portion having a diameter of less than .007 inch (0.18 mm), a first coil formed of metallic material and secured to said distal portion and a second coil formed of a material which is different from the material of which the first named coil is formed and which is substantially radiopaque secured to the distal extremity of the first coil and means having a rounded conformation secured to the distal extremity of the second coil.
Claim 3
Dependent Claim 46 words
A guide device as claimed in claim 1 wherein the outer extremity of the coil extends beyond the distal extremity of the flexible elongate cylindrical element together with a safety wire secured to the outer extremity of the second coil and to the flexible elongate element.
Claim 4
Dependent Claim 27 words
A guide device as claimed in claim 1 wherein said means having a rounded conformation is bonded to the distal extremity of the flexible elongate cylindrical element.
Claim 5
Dependent Claim 43 words
A guide device as claimed in any one of the preceding claims wherein said first and second coils are screwed together so that at least a portion of each coil has individual turns which are disposed between individual turns of the other coil.
Claim 6
Dependent Claim 26 words
A guide device as claimed in claim 4 wherein the portions which are screwed together are brazed together and are brazed to the flexible elongate element.
Claim 7
Dependent Claim 59 words
A guide device as claimed in claim 1 wherein the second coil extends beyond the distal extremity of the flexible elongate element together with a safety wire and wherein one end of the safety wire is brazed to the flexible elongate element and the other end of the safety wire is bonded to the means having a rounded conformation.
Claim 8
Dependent Claim 32 words
A guide device as claimed in any one of the preceding claims wherein said first coil is formed of stainless steel and wherein said second coil is formed of a platinum alloy.

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