Patent US5207229A successfully refreshed from Google Patents.
US5207229A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexibility steerable guidewire with inflatable balloon
Assignee: Advanced Biomedical Devices Inc
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Filing: 1990-10-01
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Granted: 1993-05-04
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Expires: 2010-10-01
Abstract
Abstract A dilation steerable guidewire for use in the vascular system having an inflatable balloon at the distal end and a bi-directional fluid and/or mechanical pressure operated valve forward of the balloon position. The guidewire construction provides torque and improved flexibility for manipulating the guidewire through the anatomy while the valve regulates fluid emission from the tip of the guidewire for visualization or into the balloon for inflation and deflation. One embodiment provides connection to the distal end via a spring element under the balloon to provide enhanced flexibility.
Inventors
- 👤 R. Edward Winters
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:07
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/0067; A61M25/0074; A61M25/0075; A61M25/01; A61M25/09; A61M2025/09008; A61M25/10
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
83 words
A guidewire comprising: a length of flexible tubing having proximal and distal ends and interior and exterior walls and providing torsional, axial and radial rigidity; a radial element disposed within said flexible tubing at said distal end; a movable core; and an axially movable element retained by said movable core and axially slideable thereon within said flexible tubing distal of said radial element to be selectively seated on said radial element by applying a force toward the proximal end of said flexible tubing.
Claim 2
Dependent Claim
83 words
A guidewire comprising: a length of flexible tubing having proximal and distal ends and interior and exterior walls and providing torsional, axial and radial rigidity; a radial element disposed within said flexible tubing at said distal end; a movable core; and an axially movable element retained by said movable core and axially slideable thereon within said flexible tubing distal of said radial element to be selectively seated on said radial element by applying a force toward the proximal end of said flexible tubing.
Claim 3
Dependent Claim
28 words
The guidewire of claim 1, further including a balloon element mounted on said flexible tubing and adapted to receive fluid therein in response to said axially movable element.
Claim 4
Dependent Claim
12 words
The guidewire of claim 1, wherein said movable element comprises a collar.
Claim 5
Dependent Claim
73 words
A guidewire comprising: a length of flexible tubing having proximal and distal ends and interior and exterior walls and providing torsional, axial and radial rigidity; a radial element disposed within said flexible tubing at said distal end; and an axially movable element retained within said flexible tubing to be selectively seated on said radial element, wherein said axially movable element is positionally responsive to the pressure of a fluid within said flexible tubing.
Claim 6
Dependent Claim
73 words
A guidewire comprising: a length of flexible tubing having proximal and distal ends and interior and exterior walls and providing torsional, axial and radial rigidity; a radial element disposed within said flexible tubing at said distal end; and an axially movable element retained within said flexible tubing to be selectively seated on said radial element, wherein said axially movable element is positionally responsive to the pressure of a fluid within said flexible tubing.
Claim 7
Dependent Claim
86 words
A guidewire comprising: a length of flexible tubing having proximal and distal ends and interior and exterior walls and providing torsional, axial and radial rigidity; a radial element disposed within said flexible tubing at said distal end; and an axially movable element retained within said flexible tubing to be selectively seated on said radial element, further including an axially movable core disposed within said flexible tubing having a radial protrusion to engage and axially urge said movable element in response to axial motion of said core.
Claim 8
Dependent Claim
86 words
A guidewire comprising: a length of flexible tubing having proximal and distal ends and interior and exterior walls and providing torsional, axial and radial rigidity; a radial element disposed within said flexible tubing at said distal end; and an axially movable element retained within said flexible tubing to be selectively seated on said radial element, further including an axially movable core disposed within said flexible tubing having a radial protrusion to engage and axially urge said movable element in response to axial motion of said core.
Claim 9
Dependent Claim
83 words
A guidewire comprising: a length of flexible tubing having proximal and distal ends and interior and exterior walls and providing torsional, axial and radial rigidity; a radial element disposed within said flexible tubing at said distal end; and an axially movable element retained within said flexible tubing to be selectively seated on said radial element, wherein said radial element includes a surface confronting said movable element and having a channel therein to provide a selected orifice when said movable element is seated thereon.
Claim 10
Dependent Claim
83 words
A guidewire comprising: a length of flexible tubing having proximal and distal ends and interior and exterior walls and providing torsional, axial and radial rigidity; a radial element disposed within said flexible tubing at said distal end; and an axially movable element retained within said flexible tubing to be selectively seated on said radial element, wherein said radial element includes a surface confronting said movable element and having a channel therein to provide a selected orifice when said movable element is seated thereon.
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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) | 1996-05-03 | 1996-11-02 | 1997-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-05-03 | 2000-11-02 | 2001-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-05-03 | 2004-11-02 | 2005-05-04 | $7700.00 | Window Closed / Lapsed |