Patent US2994219A successfully refreshed from Google Patents.
US6881220B2
Expired / Lapsed
US
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Method of recapturing a stent
Assignee: Bard Peripheral Vascular Inc
•
Filing: 2003-08-08
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Granted: 2005-04-19
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Expires: 2023-08-08
Abstract
Abstract An endoluminal stent contains a hollow passageway for the circulation of heated and/or cryogenic fluids to recapture a previously implanted shape memory stent. The hollow passageway stent can have one or a plurality of passageways and is configured in a tubular shape with numerous coils, providing an empty tubular lumen through the center of the stent to allow blood flow. The stent is connected to a removable catheter that conducts fluid to the stent. Fluid flow may be regulated by valves incorporated in either the stent and/or the catheter.
Inventors
- 👤 Tarun J. Edwin
- 👤 Christopher E. Banas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:37
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/82; A61F2/86; A61F2/88; A61F2210/00; A61F2210/0014; A61F2210/0023; A61F2210/0042; A61F2250/00; A61F2250/0058; A61F2250/0067
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
127 words
A method of recapturing a shape memory stent that has been deployed within a vessel of a patient, wherein a lumen for the flow of blood is created by the deployed shape memory stent, comprising the steps of: inserting a recapture stent within the shape memory stent, wherein the recapture stent is attached to a catheter, the recapture stent being configured to receive and circulate fluid from the catheter without release of fluid into the vessel; enlarging the recapture stent to come in contact with the shape memory stent; cooling the recapture stent thereby reverting the shape memory stent to a smaller or relaxed state whereby the shape memory stent enfolds the recapture stent; and withdrawing the catheter to remove the recapture stent and shape memory stent.
Claim 2
Independent Claim
127 words
A method of recapturing a shape memory stent that has been deployed within a vessel of a patient, wherein a lumen for the flow of blood is created by the deployed shape memory stent, comprising the steps of: inserting a recapture stent within the shape memory stent, wherein the recapture stent is attached to a catheter, the recapture stent being configured to receive and circulate fluid from the catheter without release of fluid into the vessel; enlarging the recapture stent to come in contact with the shape memory stent; cooling the recapture stent thereby reverting the shape memory stent to a smaller or relaxed state whereby the shape memory stent enfolds the recapture stent; and withdrawing the catheter to remove the recapture stent and shape memory stent.
Claim 3
Dependent Claim
23 words
The method according to claim 1 , wherein the enlarging step further comprises the step of circulating heated fluid through the recapture stent.
Claim 4
Dependent Claim
23 words
The method according to claim 1 , wherein the cooling step further comprises the step of circulating cryogenic fluid through the recapture stent.
References Cited (Backward Citations)
US3868956A
Cited
US4307723A
Cited
US4531933A
Cited
US4503569A
Cited
US4694838A
Cited
US4881939A
Cited
US4706671A
Cited
US4762130A
Cited
US4887996A
Cited
US4813925A
Cited
US4795458A
Cited
US5201901A
Cited
US4820298A
Cited
US4917666A
Cited
US5163928A
Cited
US5156620A
Cited
US5536274A
Cited
US5181911A
Cited
US5147370A
Cited
US5226888A
Cited
US5380307A
Cited
US5370691A
Cited
US5795318A
Cited
US5649978A
Cited
US5562641A
Cited
US5441516A
Cited
US5445594A
Cited
US5882335A
Cited
US5902266A
Cited
US5545135A
Cited
US5669931A
Cited
US5676685A
Cited
US5697968A
Cited
US6579305B1
Cited
US6053900A
Cited
US6050986A
Cited
US6149677A
Cited
US6063101A
Cited
US6258118B1
Cited
US6348067B1
Cited
US6413273B1
Cited
US20020161427A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2008-04-18 | 2008-10-18 | 2009-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2012-04-18 | 2012-10-18 | 2013-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2016-04-18 | 2016-10-18 | 2017-04-19 | $7700.00 | Window Closed / Lapsed |