US5836892A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Guidewire with radiopaque markers
Assignee: Cordis US Corp
•
Filing: 1995-10-30
•
Granted: 1998-11-17
•
Expires: 2015-10-30
Abstract
Abstract The guidewire comprises: a tip section including a core wire including a first tapered portion, a reduced-in-diameter portion, a second tapered portion and a rod end portion, two or more highly radiopaque annular marker bands being received on the core wire between the first tapered portion and the rod end portion and precisely spaced apart on the core wire by one or more plastic tubing segments, and an outer sleeve covering said marker bands and tubing segments.
Inventors
- 👤 Juan Lorenzo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:11
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/01; A61M25/09; A61M2025/09058; A61M2025/09083; A61M2025/09091; A61M2025/09166; A61M2025/09175
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
121 words
A guidewire comprising: a tip section including a core wire including a first tapered portion, a reduced-in-diameter portion, a second tapered portion and a rod end portion, at least three highly radiopaque annular marked bands having a length between 1 mm and 3 mm which are received on said core wire between said first tapered portion and said rod end portion, said middle band being received on said core wire, and precisely spaced apart on said core wire by at least two plastic sleeves each having a precise length between 5 mm and 8 cm, the precise length being the same or different for the two plastic sleeves, and an outer sleeve covering the marker bands and tubing segments or sleeves.
Claim 2
Dependent Claim
121 words
A guidewire comprising: a tip section including a core wire including a first tapered portion, a reduced-in-diameter portion, a second tapered portion and a rod end portion, at least three highly radiopaque annular marked bands having a length between 1 mm and 3 mm which are received on said core wire between said first tapered portion and said rod end portion, said middle band being received on said core wire, and precisely spaced apart on said core wire by at least two plastic sleeves each having a precise length between 5 mm and 8 cm, the precise length being the same or different for the two plastic sleeves, and an outer sleeve covering the marker bands and tubing segments or sleeves.
Claim 3
Dependent Claim
18 words
The guidewire of claim 1 wherein said annular marker bands are made of platinum iridium coiled wire segments.
Claim 4
Dependent Claim
18 words
The guidewire of claim 1 wherein said annular marker bands are made of platinum iridium solid annular bands.
Claim 5
Dependent Claim
13 words
The guidewire of claim 1 wherein said plastic sleeves are made of polyimide.
Claim 6
Dependent Claim
13 words
The guidewire of claim 1 wherein said outer sleeve is made of polytetrafluorethylene.
Claim 7
Dependent Claim
28 words
The guidewire of claim 1 wherein said three marker bands are spaced apart by two plastic sleeves each having a length between approximately 5 mm and 8 cm.
Claim 8
Dependent Claim
18 words
The guidewire of claim 6 where said length of said most distal tubing segment is approximately 1 cm.
Claim 9
Dependent Claim
36 words
The guidewire of claim 6 wherein the proximal one of the three marker bands is spaced from the next proximal marker band by a plastic sleeve having a length of approximately 1 cm to 8 cm.
Claim 10
Dependent Claim
22 words
The guidewire of claim 1 wherein said marker bands are made of platinum iridium bands having approximately 90% platinum and 10% iridium.
Claim 11
Dependent Claim
12 words
The guidewire of claim 1 wherein said marker bands are annular rings.
Claim 12
Dependent Claim
17 words
The guidewire of claim 1 wherein each marker band has a length and of approximately 1.5 mm.
Claim 13
Dependent Claim
12 words
The guidewire of claim 1 including between 2 to 15 marker bands.
Claim 14
Dependent Claim
12 words
The guidewire of claim 12 including between 1 to 17 tubing segments.
Claim 15
Dependent Claim
14 words
The guidewire of claim 1 wherein said core wire is made of stainless steel.
Claim 16
Dependent Claim
15 words
The guidewire of claim 1 wherein said annular marker bands are made of platinum nickel.
Claim 17
Dependent Claim
15 words
The guidewire of claim 1 wherein said annular marker bands are made of platinum tungsten.
References Cited (Backward Citations)
US3528406A
Cited
US3547103A
Cited
US3706883A
Cited
US3789841A
Cited
US3847157A
Cited
FR2401668A1
Cited
US4279252A
Cited
US4545390A
Cited
US4554929A
Cited
USRE33911E
Cited
US4925445A
Cited
EP0142330A2
Cited
US4538622A
Cited
US4669465A
Cited
US4616653A
Cited
EP0223179A2
Cited
US4732163A
Cited
US4748986A
Cited
US4798598A
Cited
US4867173A
Cited
US4723936A
Cited
US4763647A
Cited
US4830023A
Cited
US4832047A
Cited
US4846186A
Cited
US4884573A
Cited
US4884579A
Cited
US4940062A
Cited
US4922924A
Cited
US5063935A
Cited
US5069226A
Cited
US5129890A
Cited
US5144959A
Cited
US5131407A
Cited
US5209730A
Cited
US5345945A
Cited
US5178158A
Cited
US5176149A
Cited
US5228453A
Cited
US5241970A
Cited
US5368049A
Cited
US5213111A
Cited
US5253653A
Cited
WO1993008862A1
Cited
US5353808A
Cited
US5259393A
Cited
US5514128A
Cited
US5267574A
Cited
US5409015A
Cited
US5409004A
Cited
US5402799A
Cited
US5606981A
Cited
US5406960A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2001-11-16 | 2002-05-18 | 2002-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-11-16 | 2006-05-18 | 2006-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-11-16 | 2010-05-18 | 2010-11-17 | $7700.00 | Window Closed / Lapsed |