Patent US4646096A successfully refreshed from Google Patents.
US5067489A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible guide with safety tip
Assignee: Ev3 Inc
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Filing: 1990-10-26
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Granted: 1991-11-26
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Expires: 2010-10-26
Abstract
Abstract An elongated guide for use in medical procedures is provided, the guide having a flexible metal core and a forward portion comprising an elongated, helically wound wire coil providing a flexible tip. A flexible safety wire extends forwardly within the coil and terminates forwardly in an integral, enlarged diameter portion defining a plug carried adjacent the forward end of the coil, the plug having a diameter at least approximately equal to the inner diameter of the coil at its forward end and substantially filling the lumen of the coil. A bonding agent such as a polymeric resin, solder or the like is employed to adhere the plug to the coil.
Inventors
- 👤 Stuart J. Lind
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:06
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/01; A61M25/09; A61M25/09016; A61M25/09033; A61M2025/09058; A61M2025/09083; A61M2025/09091; A61M2025/09175
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
108 words
A guide wire comprising an elongated flexible metal core, an elongated, helically wound wire coil having a forward end and providing the guide wire with a flexible tip, the core having a forward portion of reduced diameter extending forwardly within the tip and terminating forwardly in an enlarged diameter portion integrally formed with the core and defining a plug carried adjacent the forward end of the coil, the plug having a diameter approximately equal to the inner diameter of the coil at its forward end and substantially filling the inner lumen of the coil adjacent its forward end, and a bonding agent bonding the plug to the coil.
Claim 2
Dependent Claim
108 words
A guide wire comprising an elongated flexible metal core, an elongated, helically wound wire coil having a forward end and providing the guide wire with a flexible tip, the core having a forward portion of reduced diameter extending forwardly within the tip and terminating forwardly in an enlarged diameter portion integrally formed with the core and defining a plug carried adjacent the forward end of the coil, the plug having a diameter approximately equal to the inner diameter of the coil at its forward end and substantially filling the inner lumen of the coil adjacent its forward end, and a bonding agent bonding the plug to the coil.
Claim 3
Dependent Claim
14 words
The guide wire of claim 1 wherein the core is of shape memory alloy.
Claim 4
Dependent Claim
30 words
The guide wire of claim 1 further comprising an exposed, gently rounded tip portion carried forwardly of the plug and adapted to contact tissue during use of the guide wire.
Claim 5
Dependent Claim
36 words
The guide wire of claim 1 wherein the bonding agent extends between the annular shoulder and the coil so as to be placed in compression when the core is pulled rearwardly with respect to the coil.
Claim 6
Dependent Claim
138 words
A guide wire comprising an elongated flexible metal core, an elongated, helically wound wire coil having a forward end providing a flexible tip, the flexible metal core having a forward portion of reduced diameter extending forwardly within the tip and terminating forwardly in an enlarged diameter portion integrally formed with the core and defining a plug carried adjacent the forward end of the coil and having a diameter approximately equal to the inner diameter of the coil and substantially filling the inner lumen of the coil adjacent its forward end, the plug having a rearwardly facing annular shoulder, and a bonding agent bonding the plug to the coil, the bonding agent extending between said annular shoulder and the coil so as to be placed in compression when the safety wire is pulled rearwardly with respect to the coil.
Claim 7
Dependent Claim
138 words
A guide wire comprising an elongated flexible metal core, an elongated, helically wound wire coil having a forward end providing a flexible tip, the flexible metal core having a forward portion of reduced diameter extending forwardly within the tip and terminating forwardly in an enlarged diameter portion integrally formed with the core and defining a plug carried adjacent the forward end of the coil and having a diameter approximately equal to the inner diameter of the coil and substantially filling the inner lumen of the coil adjacent its forward end, the plug having a rearwardly facing annular shoulder, and a bonding agent bonding the plug to the coil, the bonding agent extending between said annular shoulder and the coil so as to be placed in compression when the safety wire is pulled rearwardly with respect to the coil.
Claim 8
Dependent Claim
14 words
The guide wire of claim 5 wherein the core is of shape memory alloy.
Claim 9
Dependent Claim
30 words
The guide wire of claim 5 further comprising an exposed, gently rounded tip portion carried forwardly of the plug and adapted to contact tissue during use of the guide wire.
References Cited (Backward Citations)
US3452742A
Cited
US3521620A
Cited
US3612058A
Cited
US3625200A
Cited
US3789841A
Cited
US3749086A
Cited
US3841308A
Cited
US3906938A
Cited
US4080706A
Cited
US4003369A
Cited
US4020829A
Cited
US4534363A
Cited
US4545390A
Cited
US4456017A
Cited
US4554929A
Cited
US4579127A
Cited
CA1232814A
Cited
US4925445A
Cited
US4619274A
Cited
US4724846A
Cited
US4776844A
Cited
US4854330A
Cited
US4811743A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-11-25 | 1995-05-27 | 1995-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-11-25 | 1999-05-27 | 1999-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-11-25 | 2003-05-27 | 2003-11-26 | $7700.00 | Window Closed / Lapsed |