Patent US2797837A successfully refreshed from Google Patents.
US5176149A
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US
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Catheter guide support
Assignee: Nivarox Far SA
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Filing: 1991-12-27
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Granted: 1993-01-05
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Expires: 2011-12-27
Abstract
Abstract A catheter guide support is provided having a wire with a proximal region, of substantially constant cross-section, a distal tapered region and a flexible protecting sheath which extends at least along the length of the distal region of the wire. The wire is constructed integral with the sheath only at the free extremity of its distal region by means of a first weld forming a rounded end, said support also having a tube extending over the whole region of the wire not covered by the sheath, one extremity of the tube simply abutting against the proximal region of the sheath whereas the opposite extremity of the tube is fixed to the proximal region of the wire by means of a second weld.
Inventors
- 👤 Guy Grenouillet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:00
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/01; A61M25/09; A61M25/09016; A61M25/09033
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
120 words
A catheter guide support comprising a wire having a proximal region of substantially constant cross-section and a tapered distal region, and a flexible protecting sheath extending at least along the length of the distal region of the wire, wherein the wire is fixed to the sheath only at the free end of its distal region by means of a first weld forming a rounded tip and which also comprises a tube extending over the whole region of the wire not covered by the sheath, one end of the tube simply abutting against the proximal region of the sheath, whereas the opposite end of the tube is fixed to the proximal region of the wire by means of a second weld.
Claim 2
Dependent Claim
120 words
A catheter guide support comprising a wire having a proximal region of substantially constant cross-section and a tapered distal region, and a flexible protecting sheath extending at least along the length of the distal region of the wire, wherein the wire is fixed to the sheath only at the free end of its distal region by means of a first weld forming a rounded tip and which also comprises a tube extending over the whole region of the wire not covered by the sheath, one end of the tube simply abutting against the proximal region of the sheath, whereas the opposite end of the tube is fixed to the proximal region of the wire by means of a second weld.
Claim 3
Dependent Claim
33 words
A guide support according to claim 1, wherein the wire also comprises at the extremity of its distal region a reinforcing section having a cross-section substantially equal to that of the proximal region.
Claim 4
Dependent Claim
19 words
A guide support according to claim 1, wherein the first and second welds are microplasma welds without added metal.
Claim 5
Dependent Claim
19 words
A guide support according to claim 1, wherein the sheath is formed by a helical spring of adjoining spirals.
Claim 6
Dependent Claim
18 words
A guide support according to claim 1, wherein the tube and the sheath have substantially the same diameter.
Claim 7
Dependent Claim
24 words
A guide support according to claim 5, wherein the tube and the sheath have a diameter substantially equal to or less than 0.8 mm.
Claim 8
Dependent Claim
26 words
A guide support according to claim 1, wherein the length of the distal part of the wire is substantially greater than or equal to 80 mm.
Claim 9
Dependent Claim
27 words
A guide support according to claim 1, wherein the diameter of the rounded tip portion is substantially equal to the diameter of the tube and the sheath.
Claim 10
Dependent Claim
20 words
A guide support according to claim 1, covered by a layer of a material having a low coefficient of friction.
Claim 11
Dependent Claim
18 words
A guide support according to claim 1, wherein the tube and the wire are made of stainless steel.
Claim 12
Dependent Claim
16 words
A guide support according to claim 1, wherein the sheath is made of a radiolabile material.
Claim 13
Dependent Claim
19 words
A guide support according to claim 1, wherein the sheath is made of an alloy of platinum and iridium.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-01-05 | 1996-07-06 | 1997-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-01-05 | 2000-07-06 | 2001-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-01-05 | 2004-07-06 | 2005-01-05 | $7700.00 | Window Closed / Lapsed |