Patent US5251640A successfully refreshed from Google Patents.
US5251640A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite wire guide shaft
Assignee: Cook Medical Technologies LLC
•
Filing: 1992-03-31
•
Granted: 1993-10-12
•
Expires: 2012-03-31
Abstract
Abstract A composite wire guide shaft includes first and second sets of fibers which are arranged along a longitudinal axis and are embedded in an epoxy matrix. The first set of fibers are arranged substantially parallel to the longitudinal axis of the wire guide shaft and the remaining second set of fibers are helically wound in opposing directions about the longitudinal axis. The longitudinally parallel fibers provide pushability to the wire guide shaft while the helically wound fibers provide rotational stiffness for improved torqueability.
Inventors
- 👤 Thomas A. Osborne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:51
CPC Classifications
A; A61; A61L; A61L31/00; A61L31/12; A61L31/121; A61M; A61M25/00; A61M25/01; A61M25/09; A61M2025/0915; A61M2025/09191
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
59 words
A composite wire guide shaft comprising: first fibers helically wound about a longitudinal axis; second fibers arranged substantially parallel to said longitudinal axis adjoining said first fibers; said first fibers and said second fibers being embedded in an adhesive matrix; and said first fibers and said second fibers being a majority of the weight of the wire guide shaft.
Claim 2
Dependent Claim
59 words
A composite wire guide shaft comprising: first fibers helically wound about a longitudinal axis; second fibers arranged substantially parallel to said longitudinal axis adjoining said first fibers; said first fibers and said second fibers being embedded in an adhesive matrix; and said first fibers and said second fibers being a majority of the weight of the wire guide shaft.
Claim 3
Dependent Claim
43 words
The composite wire guide shaft of claim 1 wherein a portion of said first fibers are wound about said longitudinal axis in a clockwise direction and the remaining portion of said first fibers are wound about said longitudinal axis in a counterclockwise direction.
Claim 4
Dependent Claim
36 words
The composite wire guide shaft of claim 2 wherein said first fibers and said second fibers are chosen from a group consisting of boron fibers, carbon fibers, fiberglass, polymeric aromatic nylon fibers, or silicon carbide filaments.
Claim 5
Dependent Claim
32 words
The composite wire guide shaft of claim 3 having a hollow central core substantially coaxial with said longitudinal axis; and said first fibers and said second fibers surround said hollow central core.
Claim 6
Dependent Claim
40 words
The composite wire guide shaft of claim 3 further comprising a central core substantially coaxial with said longitudinal axis which includes a bundle of third fibers; and said first fibers and said second fibers surround said bundle of third fibers.
Claim 7
Dependent Claim
32 words
The composite wire guide shaft of claim 5 wherein said third fibers are chosen from a group consisting of boron fibers, carbon fibers, fiberglass, polymeric aromatic nylon fibers, or silicon carbide filaments.
Claim 8
Dependent Claim
20 words
The composite wire guide shaft of claim 6 wherein said bundle of third fibers is embedded in an adhesive matrix.
Claim 9
Dependent Claim
19 words
The composite wire guide shaft of claim 3 wherein said first fibers are wound in a plurality of layers.
Claim 10
Dependent Claim
28 words
The composite wire guide shaft of claim 3 wherein said second fibers are side by side and arranged to define a cylinder substantially coaxial with said longitudinal axis.
Claim 11
Dependent Claim
19 words
The composite wire guide shaft of claim 3 having a tapering cross section along a portion of the shaft.
References Cited (Backward Citations)
US2573361A
Cited
US2749643A
Cited
US3421247A
Cited
US3684605A
Cited
US3773034A
Cited
US3924632A
Cited
US3953637A
Cited
US4020829A
Cited
US4061806A
Cited
US4178713A
Cited
US4215703A
Cited
US4425919A
Cited
US4690175A
Cited
US4685241A
Cited
US4759147A
Cited
US4885865A
Cited
US4817613A
Cited
US4860481A
Cited
US4981478A
Cited
EP0359549A1
Cited
US5037404A
Cited
US5095915A
Cited
US5057092A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-10-11 | 1997-04-12 | 1997-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-10-11 | 2001-04-12 | 2001-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-10-11 | 2005-04-12 | 2005-10-12 | $7700.00 | Window Closed / Lapsed |