US5520697A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for correcting the position of a stent
Assignee: Angiomed GmbH and Co Medizentechnik KG
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Filing: 1995-01-12
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Granted: 1996-05-28
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Expires: 2015-01-12
Abstract
Abstract An apparatus for correcting a positioning of a stent for widening or keeping open a stenosis, in blood vessels, the urethra, the ureter, etc. The apparatus includes a guide part slidably housing an elongated wire part provided at a forward end thereof with radially expandable wire portions having structures for grasping the stent.
Inventors
- 👤 Josef Lindenberg
- 👤 Wolfram Schnepp-Pesch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:17
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/95; A61F2/9517; A61B; A61B17/00; A61B17/22; A61B17/221; A61B2017/2212; A61B2017/2215; A61F2/02; A61F2/30; A61F2002/30001; A61F2002/30003; A61F2002/3006; A61F2002/30092; A61F2002/30108; A61F2002/30199; A61F2002/30289; A61F2002/9534; A61F2210/00; A61F2210/0014; A61F2210/0019; A61F2230/00; A61F2230/0063; A61F2230/0091
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
152 words
An apparatus for correcting a position of a stent in a vessel, such as a stent for widening a stenosis, said apparatus comprising at least one hollow guide part, and an elongated wire part provided at a front end thereof with radially expandable wire portions having free ends, said elongated wire part with radially expandable wire portions being movable in said hollow guide part, and said radially expandable wire portions having different lengths and, when said radially expandable wire portions are advanced out of said guide part so that distal portions thereof including said free ends are released by said guide part, said distal portions move into a radially expanded position in which said distal portions extend radially outwardly from said elongated wire part approximately perpendicular to an axis of symmetry of the elongated wire part, and wherein said radially expandable wire portions are provided on their free ends with thickened portions.
Claim 2
Independent Claim
152 words
An apparatus for correcting a position of a stent in a vessel, such as a stent for widening a stenosis, said apparatus comprising at least one hollow guide part, and an elongated wire part provided at a front end thereof with radially expandable wire portions having free ends, said elongated wire part with radially expandable wire portions being movable in said hollow guide part, and said radially expandable wire portions having different lengths and, when said radially expandable wire portions are advanced out of said guide part so that distal portions thereof including said free ends are released by said guide part, said distal portions move into a radially expanded position in which said distal portions extend radially outwardly from said elongated wire part approximately perpendicular to an axis of symmetry of the elongated wire part, and wherein said radially expandable wire portions are provided on their free ends with thickened portions.
Claim 3
Dependent Claim
27 words
Apparatus according to claim 1, wherein upon release, said distal portions of the wire portions are self-expanding wire portions so as to move into said expanded position.
Claim 4
Dependent Claim
21 words
Apparatus according to claim 2, wherein the radially expandable wire portion are constructed in one piece with the elongated wire part.
Claim 5
Dependent Claim
18 words
Apparatus according to claim 1, wherein the radially expandable wire portions are fixed to the elongated wire part.
Claim 6
Dependent Claim
18 words
Apparatus according to claim 4, wherein the radially expandable wire portions are soldered to the elongated wire part.
Claim 7
Dependent Claim
17 words
Apparatus according to claim 1, wherein the radially expandable wire portions are made from a nickel-titanium alloy.
Claim 8
Dependent Claim
52 words
Apparatus according to claim 6, wherein the radially expandable wire portions are oriented in a substantially axially parallel manner in a low temperature position and said distal portions thereof including said free ends extend radially further outwards to said expanded position in a high temperature position when released by said guide part.
Claim 9
Dependent Claim
14 words
Apparatus according to claim 1, wherein the thickened portions are small ball shaped members.
Claim 10
Dependent Claim
14 words
Apparatus according to claim 1, wherein said at least one guide part is flexible.
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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) | 1999-05-28 | 1999-11-27 | 2000-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-05-28 | 2003-11-27 | 2004-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-05-28 | 2007-11-27 | 2008-05-28 | $7700.00 | Window Closed / Lapsed |