US5019057A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catheter having reinforcing strands
Assignee: Cordis Corp
•
Filing: 1989-10-23
•
Granted: 1991-05-28
•
Expires: 2009-10-23
Abstract
Abstract A flexible catheter comprises at least one resilient, tubular layer in telescoping relation with a tubular sheath made of helically disposed crossing strands. At least one of the strands has a width that substantially exceeds its height, preferably having a width that is 4 to 8 times greater than its height. At least one of the strands is circular in cross section.
Inventors
- 👤 Csaba Truckai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:27
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/0043; A61M25/005; A61M25/0053
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
55 words
A flexible catheter which comprises at least one resilient, tubular layer in telescoping relation with a tubular sheath made of essentially helically disposed crossing strands in braided relation, at least one of said strands having a width that substantially exceeds its height and at least one of said strands being of substantially circular cross section.
Claim 2
Dependent Claim
55 words
A flexible catheter which comprises at least one resilient, tubular layer in telescoping relation with a tubular sheath made of essentially helically disposed crossing strands in braided relation, at least one of said strands having a width that substantially exceeds its height and at least one of said strands being of substantially circular cross section.
Claim 3
Dependent Claim
43 words
The catheter of claim 1 in which said at least one strand having a width that substantially exceeds its height defines a pair of opposed, major sides, one of said major sides facing along its entire length the longitudinal axis of said catheter.
Claim 4
Dependent Claim
33 words
The catheter of claim 1 in which said at least one strand having a width that substantially exceeds its height has a width that is 4 to 8 times greater than its height.
Claim 5
Dependent Claim
18 words
The catheter of claim 1 in which said tubular sheath is made of at least some metal strands.
Claim 6
Dependent Claim
22 words
The catheter of claim 1 in which said tubular sheath is sealed between an inner and an outer of resilient, tubular layers.
Claim 7
Dependent Claim
26 words
The catheter of claim 1 in which said strands are helically wound on said resilient, tubular layer at a total tension of at least 250,000 p.s.i.
Claim 8
Dependent Claim
25 words
The catheter of claim 1 in which said at least one strand having a width that substantially exceeds its height is made of spring steel.
Claim 9
Dependent Claim
53 words
The catheter of claim 1 in which said at least one strand having a width that substantially exceeds its height has a width of 0.006 to 0.02 inch and a height of 0.0015 to 0.004 inch, the width of said last named one strand being at least 4 times greater than its height.
Claim 10
Dependent Claim
120 words
A flexible catheter which comprises at least one resilient, tubular layer in telescoping relation with a tubular sheath made of helically disposed crossing strands in braided relation, said tubular layer being within said tubular sheath, at least one of said strands having a width that is four to eight times greater than its height, said last named one strand defining a pair of opposed major sides, one of said major sides facing along its entire length the axis of said catheter, and being essentially helically wound on said resilient, tubular layer at a total tension of at least 250,000 p.s.i., some of said crossing strands in braided relation which make up the tubular sheath being of substantially circular cross section.
Claim 11
Dependent Claim
120 words
A flexible catheter which comprises at least one resilient, tubular layer in telescoping relation with a tubular sheath made of helically disposed crossing strands in braided relation, said tubular layer being within said tubular sheath, at least one of said strands having a width that is four to eight times greater than its height, said last named one strand defining a pair of opposed major sides, one of said major sides facing along its entire length the axis of said catheter, and being essentially helically wound on said resilient, tubular layer at a total tension of at least 250,000 p.s.i., some of said crossing strands in braided relation which make up the tubular sheath being of substantially circular cross section.
Claim 12
Dependent Claim
22 words
The catheter of claim 9 in which said tubular sheath is sealed between an inner and an outer of resilient, tubular layers.
Claim 13
Dependent Claim
14 words
The catheter of claim 10 in which said strands are made of spring steel.
References Cited (Backward Citations)
US3416531A
Cited
US3485234A
Cited
US3585707A
Cited
US3498286A
Cited
US3924632A
Cited
US4425919A
Cited
US4690175A
Cited
US4577543A
Cited
US4705511A
Cited
US4817613A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-05-27 | 1994-11-26 | 1995-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-05-27 | 1998-11-26 | 1999-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-05-27 | 2002-11-26 | 2003-05-28 | $7700.00 | Window Closed / Lapsed |