US6821291B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Retrievable stent and method of use thereof
Assignee: Boston Scientific Scimed Inc
•
Filing: 2001-07-13
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Granted: 2004-11-23
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Expires: 2021-07-13
Abstract
Abstract A removable stent system and method for extraction of a removable stent from a target site is disclosed. The removable stent includes a removable stent having a collapsible end and a collapsing element configured for coupling with a removal tool. The collapsing element can be configured as a lasso or can be movable between two positions when deployed at a target site in vivo. The removable stent overcomes disadvantages and limitations of previous types of stents as well as overcoming complications during or following stent deployment in vivo. The removable stent further includes features that increase its ease of use and reduce the maneuvering required of devices or tools used to remove the stent. This then decreases the amount of effort required by the physician, the procedure time, and the level of discomfort experienced by a patient during the procedure.
Inventors
- 👤 Stephen L. Bolea
- 👤 Robert L. Rykhus, Jr.
- 👤 Sidney F. Hauschild
- 👤 Johann J. Neisz
- 👤 Mark Polyak
- 👤 Bradford G. Staehle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:39
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/82; A61F2/86; A61F2/90; A61F2/95; A61F2/848; A61F2002/9505; A61F2002/9511; A61F2002/9528
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
A method of removing a stent from a target site comprising: providing a removable stent having an inner lumen, an outer surface, a collapsible end and a collapsing element, wherein at least a portion of said collapsing element contacts said outer surface of said removable stent; maneuvering a tool toward said removable stent such that said tool engages said collapsing element; compressing said collapsible open end of said removable stent through continued engagement of said collapsing element; removing said removable stent from said target site; wherein said tool is maneuvered within said inner lumen of said removable stent, and wherein said collapsing element comprises a lasso having a loop disposed within said inner lumen of said removable stent.
Claim 2
Independent Claim
118 words
A method of removing a stent from a target site comprising: providing a removable stent having an inner lumen, an outer surface, a collapsible end and a collapsing element, wherein at least a portion of said collapsing element contacts said outer surface of said removable stent; maneuvering a tool toward said removable stent such that said tool engages said collapsing element; compressing said collapsible open end of said removable stent through continued engagement of said collapsing element; removing said removable stent from said target site; wherein said tool is maneuvered within said inner lumen of said removable stent, and wherein said collapsing element comprises a lasso having a loop disposed within said inner lumen of said removable stent.
References Cited (Backward Citations)
US4553545A
Cited
US4655771A
Cited
US4655771B1
Cited
US4954126B1
Cited
US4954126A
Cited
US4771773A
Cited
US4649922A
Cited
US5061275A
Cited
US4893623A
Cited
US4762128A
Cited
US4800882A
Cited
US4990151A
Cited
US5100429A
Cited
US5026377A
Cited
US5035706A
Cited
US5078720A
Cited
WO1992011824A1
Cited
US5356423A
Cited
US5954729A
Cited
US5759186A
Cited
US5591172A
Cited
US5464408A
Cited
US5330482A
Cited
US5372600A
Cited
WO1993011719A1
Cited
US5261916A
Cited
US5192297A
Cited
US5350397A
Cited
US5411507A
Cited
WO1994020044A1
Cited
US5474563A
Cited
US5643309A
Cited
US5733302A
Cited
US5964771A
Cited
US5667486A
Cited
WO1994026174A1
Cited
WO1995005788A1
Cited
WO1995029646A1
Cited
US5702419A
Cited
US5624450A
Cited
US5782838A
Cited
US5814062A
Cited
WO1996026682A1
Cited
US6183504B1
Cited
US5700269A
Cited
US5713948A
Cited
US5843117A
Cited
US5749921A
Cited
EP0829242A1
Cited
US5941895A
Cited
US5911752A
Cited
US5810873A
Cited
US6245103B1
Cited
US5984957A
Cited
US6235054B1
Cited
WO1999055245A1
Cited
US6132458A
Cited
US6149680A
Cited
WO2000000105A1
Cited
US6143021A
Cited
US6019779A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2007-11-23 | 2008-05-24 | 2008-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2011-11-23 | 2012-05-24 | 2012-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2015-11-23 | 2016-05-24 | 2016-11-23 | $7700.00 | Window Closed / Lapsed |