US6068623A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hollow medical wires and methods of constructing same
Assignee: Mirage Ip LLC
•
Filing: 1997-03-06
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Granted: 2000-05-30
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Expires: 2017-03-06
Abstract
Abstract The present invention provides an apparatus for performing angioplasty or vascular intervention procedures. The apparatus of the present invention comprises a catheter apparatus comprised of a superelastic hollow guidewire, a balloon member and a flexible tip. The superelastic hollow guidewire of the invention is preferably a hypotube of nitinol alloy. The use of nitinol alloy as hollow guidewire provides a catheter apparatus having high flexibility and torqueability as well as small cross sectional diameter.
Inventors
- 👤 Gholam-Reza Zadno-Azizi
- 👤 Ketan P. Muni
- 👤 Celso J. Bagaoisan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:30
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/10; A61M25/01; A61M25/09; A61M2025/09008; A61M2025/09133; A61M2025/09141; A61M2025/09175; A61M2025/09183; A61M2025/1043; A61M2025/1052
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
A medical wire comprising: an elongate body having distal and proximal sections constructed from a nickel titanium alloy material, said distal section being constructed from a first nickel titanium alloy material exhibiting transformational superelasticity and having substantially constant stress values over a range of recoverable strains from about 1% to about 8%, said proximal section being constructed from a second nickel titanium alloy material having a modulus which is higher for a given strain than said first alloy material.
Claim 2
Dependent Claim
79 words
A medical wire comprising: an elongate body having distal and proximal sections constructed from a nickel titanium alloy material, said distal section being constructed from a first nickel titanium alloy material exhibiting transformational superelasticity and having substantially constant stress values over a range of recoverable strains from about 1% to about 8%, said proximal section being constructed from a second nickel titanium alloy material having a modulus which is higher for a given strain than said first alloy material.
References Cited (Backward Citations)
US3144868A
Cited
US3890977A
Cited
US4345602A
Cited
US4511354A
Cited
US4573966A
Cited
US4445892A
Cited
US4468216A
Cited
US4925445A
Cited
US4665906A
Cited
US5067957A
Cited
US4758222A
Cited
US5449343A
Cited
US4655746A
Cited
US4911163A
Cited
US5496346A
Cited
US4748982A
Cited
US5025799A
Cited
US5387225A
Cited
US5567203A
Cited
US4838268A
Cited
US4881981A
Cited
US4998917A
Cited
US5059178A
Cited
US5163906A
Cited
EP0631792A1
Cited
US4935068A
Cited
US5035686A
Cited
US4946466A
Cited
US5069226A
Cited
US5120308A
Cited
WO1990013329A1
Cited
US4964409A
Cited
US5169386A
Cited
US5423742A
Cited
US5279546A
Cited
US5211636A
Cited
EP0491349A2
Cited
US5411476A
Cited
US5184627A
Cited
US5167239A
Cited
US5221270A
Cited
US5324259A
Cited
US5209727A
Cited
US5417658A
Cited
US5451209A
Cited
US5500180A
Cited
US5439000A
Cited
US5281200A
Cited
US5403274A
Cited
US5322508A
Cited
US5456667A
Cited
US5344402A
Cited
US5522800A
Cited
US5462529A
Cited
US5476450A
Cited
WO1996015824A1
Cited
US5706826A
Cited
WO1997011735A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2003-05-30 | 2003-11-29 | 2004-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-05-30 | 2007-11-29 | 2008-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-05-30 | 2011-11-29 | 2012-05-30 | $7700.00 | Window Closed / Lapsed |