EP0141006A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Guide wire for catheter
Assignee: Terumo Corp
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Filing: 1984-01-27
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Granted: —
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Expires: 2004-01-27
Abstract
Abstract A guide wire for a catheter having a body portion comparatively high in rigidity and a distal end portion comparatively flexible. At least portions of the body portion and the distal end portion are formed of a super-elastic metallic member. At least portions of inner core portions on the body portion's side and on the distal end portion's side, both of which are coated by a plastic, are formed of the super-elastic metallic member, and at least a portion of the inner core portion on the distal end portion's side is made smaller in cross-section than the inner core portion on the body portion's side. In consequence, the catheter can be reliably and readily introduced to a predetermined position.
Inventors
- 👤 Hidetoshi Sakamoto
- 👤 Kenjiro Uematsu
- 👤 Masashi Momota
- 👤 Susumu Tanabe
- 👤 Tatsuo Suzuki
- 👤 Toshihiko Endo
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 18:31
CPC Classifications
A; A61; A61L; A61L31/00; A61L31/02; A61L31/022; A61M; A61M25/00; A61M25/01; A61M25/09; A61L2400/00; A61L2400/16; A61M2025/09058; A61M2025/09075
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
42 words
1 A guide wire for a catheter comprising a body portion comparatively high in rigidity and a distal end portion comparatively flexible, wherein at least portions of said body portion and said distal end portion are formed of a super-elastic metallic member.
Claim 2
Dependent Claim
42 words
1 A guide wire for a catheter comprising a body portion comparatively high in rigidity and a distal end portion comparatively flexible, wherein at least portions of said body portion and said distal end portion are formed of a super-elastic metallic member.
Claim 3
Dependent Claim
24 words
2 The guide wire for a catheter as set forth in claim 1, wherein said body portion is formed of the super-elastic metallic member.
Claim 4
Dependent Claim
26 words
3 . The guide wire for a catheter as set forth in claim 1, wherein said distal end portion is formed of the super-elastic metallic member.
Claim 5
Dependent Claim
30 words
4 The guide wire for a catheter as set forth in claim 1, wherein both the body portion and the distal end portion are formed of the super-elastic metallic member.
Claim 6
Dependent Claim
63 words
5 The guide wire for a catheter as set forth in any one of claims 1 through 4, wherein at least a portion of said distal end portion is made smaller in cross-section than said body portion, and a portion between said body portion and said distal end portion is progressively reduced in cross-section from said body portion toward said distal end portion.
Claim 7
Dependent Claim
129 words
6 A guide wire for a catheter, wherein an inner core is constituted by an inner core portion on a body portion's side and inner core portion on a distal end portion's side, said inner core as a whole is coated by a coating portion made of a plastic and said guide wire comprises said body portion comparatively high in rigidity and said distal end portion comparatively flexible, characterized in that at least portion of said inner core portions on the body portion's side and on the distal end portion's side are formed of a super-elastic metallic member and at least a portion of said inner core portion on the distal end portion's side is made smaller in cross-section than said inner core portion on the body portion's side.
Claim 8
Dependent Claim
129 words
6 A guide wire for a catheter, wherein an inner core is constituted by an inner core portion on a body portion's side and inner core portion on a distal end portion's side, said inner core as a whole is coated by a coating portion made of a plastic and said guide wire comprises said body portion comparatively high in rigidity and said distal end portion comparatively flexible, characterized in that at least portion of said inner core portions on the body portion's side and on the distal end portion's side are formed of a super-elastic metallic member and at least a portion of said inner core portion on the distal end portion's side is made smaller in cross-section than said inner core portion on the body portion's side.
Claim 9
Dependent Claim
31 words
7 The guide wire for a cathetrer as set forth in claim 6, wherein at least a portion of said distal end portion is smaller in cross-section than said body portion.
Claim 10
Dependent Claim
32 words
8 The guide wire for a catheter as set forth in claim 6, wherein said coating portion has substantially equal outer diameters at the distal end portion and at the body portion.
Claim 11
Dependent Claim
35 words
8 The guide wire for a catherter as set forth in any one of claims 6 through 8, wherein said inner core portion on the body portion's side is formed of the super-elastic metallic member.
Claim 12
Dependent Claim
36 words
10 The guide wire for a catheter as set forth in any one of claims 6 through 8, wherein said inner core portion on the distal end portion's side is formed of the super-elastic metallic member.
Claim 13
Dependent Claim
40 words
11 The guide wire for a catheter as set forth in claim 9 or 10, wherein both the inner core portions on the body portion's side and on the distal end portion's side are formed of the super-elastic metallic member.
Claim 14
Dependent Claim
56 words
12 The guide wire for a catheter as set forth in any one of claims 8 through 11, wherein a portion between the inner core portion on the body portion's side and the inner core portion on the distal end portion's side is progressively reduced in cross-section from the body portion toward the distal end portion.
Claim 15
Dependent Claim
28 words
13 The guide wire for a catheter as set forth in any one of claims 8 through 12, wherein said coating portion is formed of a hollow pipe.
Claim 16
Dependent Claim
28 words
14 The guide wire for a catheter as set forth in any one of claims 6 through 12, wherein said coating portion is formed of a coating film.
References Cited (Backward Citations)
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