Patent FR2366826A1 successfully refreshed from Google Patents.
US5242399A
Expired / Lapsed
US
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Method and system for stent delivery
Assignee: Abbott Cardiovascular Systems Inc
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Filing: 1992-06-18
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Granted: 1993-09-07
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Expires: 2012-06-18
Abstract
Abstract A stent delivery system having an expandable stent in a contracted condition positioned on an expandable member, such as an inflatable balloon, disposed on the distal portion of an elongated catheter body. A guidewire extends through an inner lumen within the elongated catheter body and out its distal end. A tubular protective sheath is secured by its distal end to the portion of the guidewire which extends out of the distal end of the catheter body and fits over the rolled up stent mounted on the expandable member on the distal end of the catheter body. The catheter assembly is advanced to a desired location within a patient's body lumen, such as the patient's arterial system, with the sheath in place over the stent. Once in proper position, the guidewire is advanced distally in order to remove the attached sheath and completely expose the stent. The expandable member on the catheter is expanded to expand the stent. The stent is preferably self-locking in the expanded condition so that the expanded expandable member can be contracted and the catheter can be removed therefrom.
Inventors
- 👤 Lilip Lau
- 👤 William M. Hartigan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:38
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/82; A61F2/92; A61F2/95; A61F2/958; B; B09; B09B; B09B1/00; E; E02; E02D; E02D31/00; G; G01; G01M; G01M3/00; G01M3/02; G01M3/04; G01M3/20; A61F2002/9583; A61F2230/00; A61F2230/0002; A61F2230/0028; A61F2230/0054; A61M; A61M25/00; A61M25/10; A61M2025/1043; A61M2025/1068; A61M2025/1081; A61M25/1006
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
191 words
A stent delivery catheter for delivering a stent disposed on said catheter, comprising: an elongated catheter body having a expandable member on a distal end thereof and an inner lumen extending therein, said expandable member adapted to expand a stent; a guidewire disposed within said inner lumen of the catheter body, said guidewire having a distal portion extending out said distal end of the elongated catheter body; a stent overlying said expandable member, said stent adapted to be expanded to a larger diameter by said expandable member; a protective tubular sheath overlying said stent prior to the expansion of said stent, said protective sheath having two ends, a distal end secured to said guidewire and a proximal end secured to said catheter body, said protective sheath folded over to form two layers over said stent, to protect said stent, prior to the expansion of said stent to a larger diameter; wherein said guidewire is moved relative to said catheter to cause said protective sheath to be withdrawn from overlying said stent, to uncover said stent, and wherein said expandable member is then expanded to expand said stent to said larger diameter.
Claim 2
Dependent Claim
191 words
A stent delivery catheter for delivering a stent disposed on said catheter, comprising: an elongated catheter body having a expandable member on a distal end thereof and an inner lumen extending therein, said expandable member adapted to expand a stent; a guidewire disposed within said inner lumen of the catheter body, said guidewire having a distal portion extending out said distal end of the elongated catheter body; a stent overlying said expandable member, said stent adapted to be expanded to a larger diameter by said expandable member; a protective tubular sheath overlying said stent prior to the expansion of said stent, said protective sheath having two ends, a distal end secured to said guidewire and a proximal end secured to said catheter body, said protective sheath folded over to form two layers over said stent, to protect said stent, prior to the expansion of said stent to a larger diameter; wherein said guidewire is moved relative to said catheter to cause said protective sheath to be withdrawn from overlying said stent, to uncover said stent, and wherein said expandable member is then expanded to expand said stent to said larger diameter.
Claim 3
Dependent Claim
16 words
The stent delivery catheter according to claim 1, wherein said protective sheath comprises a elastomeric material.
Claim 4
Dependent Claim
22 words
The stent delivery catheter according to claim 2, wherein said elastomeric material is selected from the group consisting of polyurethane and rubber.
Claim 5
Dependent Claim
24 words
The stent delivery catheter according to claim 1, wherein said stent is of a reticulated structure and selflocking to said larger diameter when expanded.
Claim 6
Dependent Claim
53 words
The stent delivery catheter according to claim 1, wherein said protective sheath folded to form said two layers has a fold line that resides closer to the proximal portion of said stent than to the distal portion of the stent, said fold line traveling distally as said sheath is withdrawn from said stent.
Claim 7
Independent Claim
167 words
A method of protecting the passage of a stent through a patient's lumen by a dilatation catheter comprising: disposing a stent over a dilatation catheter, said stent adapted to be expanded into a larger diameter by said catheter, said dilatation catheter having an elongated catheter body with a distal end, an inner lumen extending through said body, an expandable member adapted to expand said stent into said larger diameter, and a guidewire disposed within said inner lumen, said guidewire having a distal portion extending out said distal end of the elongated catheter body; disposing a protective sheath over said stent, said protective sheath folded into two layers, and having two ends, with one end attached to said guidewire and the second end attached to said elongated catheter body; moving said guidewire distally relative to said elongated catheter body to cause said protective sheath to be unfolded and to uncover said underlying stent, and wherein said expandable member is expanded to expand said stent to said larger diameter.
Claim 8
Independent Claim
167 words
A method of protecting the passage of a stent through a patient's lumen by a dilatation catheter comprising: disposing a stent over a dilatation catheter, said stent adapted to be expanded into a larger diameter by said catheter, said dilatation catheter having an elongated catheter body with a distal end, an inner lumen extending through said body, an expandable member adapted to expand said stent into said larger diameter, and a guidewire disposed within said inner lumen, said guidewire having a distal portion extending out said distal end of the elongated catheter body; disposing a protective sheath over said stent, said protective sheath folded into two layers, and having two ends, with one end attached to said guidewire and the second end attached to said elongated catheter body; moving said guidewire distally relative to said elongated catheter body to cause said protective sheath to be unfolded and to uncover said underlying stent, and wherein said expandable member is expanded to expand said stent to said larger diameter.
References Cited (Backward Citations)
US3105492A
Cited
US3657744A
Cited
US3993078A
Cited
US4140126A
Cited
US4159719A
Cited
US4130904A
Cited
US4553545A
Cited
GB2135585A
Cited
US4655771B1
Cited
US4655771A
Cited
US4531933A
Cited
US4512338A
Cited
US4503569A
Cited
US4619246A
Cited
US4580568A
Cited
US5037377A
Cited
US4732152A
Cited
US4706671A
Cited
US4650466A
Cited
US4739762B1
Cited
US4733665A
Cited
US4776337B1
Cited
US4739762A
Cited
US4733665B1
Cited
US4776337A
Cited
US4733665C2
Cited
US5102417A
Cited
US4922905A
Cited
US4681110A
Cited
US4649922A
Cited
US4878906A
Cited
US5061275A
Cited
US4740207A
Cited
US4848343A
Cited
US4893623A
Cited
US4762128A
Cited
US4800882A
Cited
US5041126A
Cited
US4907336A
Cited
US5037427A
Cited
US5059211A
Cited
US4795458A
Cited
US4969458A
Cited
US4969890A
Cited
US5089005A
Cited
US5133732A
Cited
US4886062A
Cited
US4998539A
Cited
US4870966A
Cited
US4877030A
Cited
US4892539A
Cited
US4986831A
Cited
US4830003A
Cited
US5019090A
Cited
US5092877A
Cited
US5019085A
Cited
US4913141A
Cited
US4950227A
Cited
US4856516A
Cited
US5078726A
Cited
US5007926A
Cited
US5062829A
Cited
US5100429A
Cited
US4990155A
Cited
US4994071A
Cited
US5037392A
Cited
US5116318A
Cited
US5015253A
Cited
US5084065A
Cited
US5026377A
Cited
US5002560A
Cited
US5034001A
Cited
US5104404A
Cited
US5035706A
Cited
EP0428479A1
Cited
US5089006A
Cited
US5108416A
Cited
US5071407A
Cited
US5123917A
Cited
US5078720A
Cited
US5078736A
Cited
US5064435A
Cited
US5122154A
Cited
US5108417A
Cited
US5116360A
Cited
US5135536A
Cited
US5116365A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-09-06 | 1997-03-08 | 1997-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-09-06 | 2001-03-08 | 2001-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-09-06 | 2005-03-08 | 2005-09-07 | $7700.00 | Window Closed / Lapsed |