US5111829A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Steerable highly elongated guidewire
Assignee: Boston Scientific Corp
•
Filing: 1991-01-18
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Granted: 1992-05-12
•
Expires: 2011-01-18
Abstract
Abstract A steerable quidewire of length in excess of the order of about 350 centimeters and sufficient for use for gastro-intestinal procedures includes an elongated body of flexible, kink-resistant material, the body having distal and proximal ends; a flexible distal tip formed of radiopaque material, fixedly jointed to the distal end of the body portion; and an elongated handle fixedly joined to the proximal end of the body. The handle, body and distal tip are formed of material and joined in a manner to transmit substantially all of an angular rotational force applied to the handle outside of a body to the distal tip within the body.
Inventors
- 👤 Fernando Alvarez de Toledo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:03
CPC Classifications
A; A61; A61B; A61B1/00; A61B1/005; A61B1/01; A61M; A61M25/00; A61M25/01; A61M25/09; A61M2025/09058; A61M2025/09083; A61M2025/09091; A61M2025/09133; A61M2025/09141; A61M2025/09166; A61M2025/09175
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
168 words
A steerable guidewire of length in excess of the order of about 350 centimeters and sufficient for use in gastro-intestinal procedures, said guidewire comprising an elongated distal body portion having a distal end and a proximal end, an elongated handle portion extending proximally of the proximal end of said distal body portion, at least a distal end region of said distal body portion, including said distal end, being formed of a flexible kink resistant material comprising a super-elastic metallic nickel-titanium alloy material, a flexible distal tip portion ball welded to said distal end of said elongated distal body portion, said distal tip portion being formed of a radiopaque material comprising platinum, and a plastic sleeve disposed closely about said distal end region of said distal body portion and said distal tip portion joined thereto, said guidewire constructed in a manner whereby substantially all of an angular rotational force applied to said handle portion outside of a patient's body is transmitted to the distal tip portion within the body.
Claim 2
Dependent Claim
168 words
A steerable guidewire of length in excess of the order of about 350 centimeters and sufficient for use in gastro-intestinal procedures, said guidewire comprising an elongated distal body portion having a distal end and a proximal end, an elongated handle portion extending proximally of the proximal end of said distal body portion, at least a distal end region of said distal body portion, including said distal end, being formed of a flexible kink resistant material comprising a super-elastic metallic nickel-titanium alloy material, a flexible distal tip portion ball welded to said distal end of said elongated distal body portion, said distal tip portion being formed of a radiopaque material comprising platinum, and a plastic sleeve disposed closely about said distal end region of said distal body portion and said distal tip portion joined thereto, said guidewire constructed in a manner whereby substantially all of an angular rotational force applied to said handle portion outside of a patient's body is transmitted to the distal tip portion within the body.
Claim 3
Dependent Claim
32 words
The steerable guidewire of claim 1 wherein the ratio of angular rotation force applied to the handle to angular rotation of the distal tip portion is of the order of about 1:1.
Claim 4
Dependent Claim
16 words
The steerable guidewire of claim 1 wherein said plastic sleeve is formed of heat shrinkable material.
Claim 5
Dependent Claim
15 words
The steerable guidewire of claim 1 wherein said plastic sleeve is formed of polyamide material.
Claim 6
Dependent Claim
19 words
The steerable guidewire of claim 1 comprising a wire coil disposed over said body portion and said tip portion.
Claim 7
Dependent Claim
20 words
The steerable guidewire of claim 1 wherein the length of said guidewire is of the order of about 450 centimeters.
References Cited (Backward Citations)
US2118631A
Cited
US2463149A
Cited
US3467101A
Cited
US3552384A
Cited
US3704711A
Cited
US3789841A
Cited
US3757768A
Cited
US3867945A
Cited
US3890977A
Cited
US4019925A
Cited
US3906938A
Cited
US4003369A
Cited
US3973556A
Cited
US4020829A
Cited
US4068660A
Cited
US4307722A
Cited
US4351341A
Cited
US4388076A
Cited
US4411655A
Cited
US4534363A
Cited
US4545390A
Cited
US4554929A
Cited
US4582181A
Cited
EP0141006A1
Cited
US4665906A
Cited
US4538622A
Cited
US4586969A
Cited
US4619274A
Cited
US4616653A
Cited
US4641654A
Cited
GB2180454A
Cited
US4748986A
Cited
US4638622A
Cited
WO1987005792A1
Cited
US4721117A
Cited
EP0255234A1
Cited
US4715378A
Cited
WO1988000810A1
Cited
WO1988000844A1
Cited
US4719924A
Cited
EP0274412A2
Cited
EP0274130A2
Cited
EP0279959A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-05-12 | 1995-11-11 | 1996-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-05-12 | 1999-11-11 | 2000-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-05-12 | 2003-11-11 | 2004-05-12 | $7700.00 | Window Closed / Lapsed |