Patent US6348041B1 successfully refreshed from Google Patents.
US6348041B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Guidewire
Assignee: Cook Medical Technologies LLC
•
Filing: 2000-03-29
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Granted: 2002-02-19
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Expires: 2020-03-29
Abstract
Abstract A guidewire ( 1 ) comprising a distal end ( 2 ), a shaft portion ( 4 ) and a proximal end ( 3 ), wherein the shaft portion comprises at least one helically wound group ( 10 ) of at least two wires ( 7,8,9 ) extending side by side and having a pitch angle in the range of 35° to 76°.
Inventors
- 👤 Henrik Sønderskov Klint
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:41
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/01; A61M25/09; A61M2025/09058; A61M2025/09066; A61M2025/09166; A61M2025/09191
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
89 words
A guidewire comprising: a distal end member and a shaft portion extending in a longitudinal direction from a proximal end towards the distal end member, and at least one helically wound group of at least two wires extending side by side having a pitch angle in the range of 35° to 76°, with the wires comprising the windings being in mutual side-by-side abutment continuously therealong within the group, and with at least one helical wound wire extending from a position at the shaft portion to the distal end member.
Claim 2
Dependent Claim
89 words
A guidewire comprising: a distal end member and a shaft portion extending in a longitudinal direction from a proximal end towards the distal end member, and at least one helically wound group of at least two wires extending side by side having a pitch angle in the range of 35° to 76°, with the wires comprising the windings being in mutual side-by-side abutment continuously therealong within the group, and with at least one helical wound wire extending from a position at the shaft portion to the distal end member.
Claim 3
Dependent Claim
50 words
A guidewire according to claim 1 , characterized in that along a distance of at least 10 cm from the distal end member said at least one helical wound group of wires is the primary or the sole torque transferring means between the shaft portion and the distal end member.
Claim 4
Dependent Claim
36 words
A guidewire according to claim 1 , characterized in that at least the most distal 10 cm of the guidewire is made without a torque-transferring solid metallic core inside said at least one group of wires.
Claim 5
Dependent Claim
36 words
A guidewire according to claim 1 , characterized in that said at least one helically wound group of wires has a smaller outer diameter at the distal end than at said position on the shaft portion.
Claim 6
Dependent Claim
45 words
A guidewire according to claim 1 , characterized in that said at least one helical wound group of wires extends into the shaft portion towards the proximal end, preferably along a guidewire length at least in the range of 20-50 cm from the distal end.
Claim 7
Dependent Claim
30 words
A guidewire according to claim 5 , characterized in that said at least one helical wound group of wires extends to a position at the proximal end of the guidewire.
Claim 8
Dependent Claim
19 words
A guidewire according to claim 1 , wherein said pitch angle is in the range of 35° to 72°.
Claim 9
Dependent Claim
22 words
A guidewire according to claim 5 , wherein said smaller outer diameter comprises outwardly facing portions of said wires being ground away.
Claim 10
Dependent Claim
20 words
A guidewire according to claim 1 , wherein said at least one helical wound group of wires comprises three wires.
Claim 11
Dependent Claim
16 words
A guidewire according to claim 1 , wherein one of said wires is a ribbonshaped wire.
Claim 12
Dependent Claim
26 words
A guidewire according to claim 1 , wherein one of said wires is of radiopaque material and another of said wires is of high strength material.
Claim 13
Dependent Claim
16 words
A guidewire according to claim 10 , wherein another of said wires is circular in cross-section.
Claim 14
Dependent Claim
43 words
A guidewire according to claim 1 , wherein a second group of wires is wound helically in a direction orthogonal to that of said helical wound group, with said helical wound group and said second group being braided together as groups continuously therealong.
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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) | 2005-02-18 | 2005-08-20 | 2006-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2009-02-18 | 2009-08-20 | 2010-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2013-02-18 | 2013-08-20 | 2014-02-19 | $7700.00 | Window Closed / Lapsed |