Patent US6843802B1 successfully refreshed from Google Patents.
US6843802B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Delivery apparatus for a self expanding retractable stent
Assignee: Ethicon Endo Surgery Inc
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Filing: 2000-11-16
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Granted: 2005-01-18
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Expires: 2020-11-16
Abstract
Abstract A delivery apparatus for a self-expanding stent allows for ease of repositioning. The apparatus includes an outer sheath made from an elongated tubular member having distal and proximal ends, and an inner shaft located coaxially within the outer sheath. The shaft has a distal end and a proximal end. The shaft includes a removable member on an exterior surface thereof adjacent to its proximal end. The removable member being sized such that it prevents the sheath from sliding along the shaft proximal to the member until it is removed therefrom. Preferably, the distal end of the shaft further including at least two grooves disposed thereon. Preferably the apparatus includes a substantially cylindrical self-expanding stent located within the sheath. The self-expanding member having a proximal end, a distal end, a longitudinal axis extending therebetween and an interior. The self-expanding stent further including at least two spaced apart longitudinal legs having distal and proximal ends, the distal ends of the legs attached to the proximal end of the member. The legs extending proximally away from the member and each the leg including a flange adjacent its proximal end, wherein the flanges are set within the grooves of the inner shaft so as to releasably attach the stent to the inner shaft.
Inventors
- 👤 Joaquin Villalobos
- 👤 Ivan A. Toyos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:04
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/95; A61F2/954; A61F2/02; A61F2/04; A61F2/06; A61F2/07; A61F2/82; A61F2/86; A61F2/90; A61F2/91; A61F2002/065; A61F2002/067; A61F2002/075; A61F2002/9505
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
98 words
A delivery apparatus for a self-expanding stent, said apparatus comprising: a) an outer sheath, comprising an elongated tubular member having distal and proximal ends; b) an inner shaft located coaxially and slidably within said outer sheath, said inner shaft having a distal end and a proximal end, said inner shaft further including at least two grooves disposed thereon; and c) a stop releasably affixed on an exterior surface of the inner shaft adjacent its proximal end, said stop being configured to allow said outer sheath to move a predetermined distance, thereby enabling partial deployment of a self-expanding stent.
Claim 2
Dependent Claim
98 words
A delivery apparatus for a self-expanding stent, said apparatus comprising: a) an outer sheath, comprising an elongated tubular member having distal and proximal ends; b) an inner shaft located coaxially and slidably within said outer sheath, said inner shaft having a distal end and a proximal end, said inner shaft further including at least two grooves disposed thereon; and c) a stop releasably affixed on an exterior surface of the inner shaft adjacent its proximal end, said stop being configured to allow said outer sheath to move a predetermined distance, thereby enabling partial deployment of a self-expanding stent.
Claim 3
Dependent Claim
17 words
The apparatus according to claim 1 said stop is semi-cylindrical and snap fits over said inner shaft.
Claim 4
Dependent Claim
22 words
The apparatus according to claim 2 wherein said stop has an outside diameter larger than an inside diameter of said outer sheath.
Claim 5
Dependent Claim
199 words
A stent delivery apparatus comprising: a) an outer sheath, comprising an elongated tubular member having distal and proximal ends; b) an inner shaft located coaxially within said outer sheath, said inner shaft having a distal end and a proximal end, said distal end of said inner shaft further including at least two grooves disposed therein; c) a stop releasably affixed on an exterior surface of the inner shaft adjacent its proximal end, said stop being configured to allow said outer sheath to move a predetermined distance, thereby enabling partial deployment of a self-expanding stent; and d) a substantially cylindrical self-expanding stent, located within said outer sheath, said self-expanding stent having a proximal end, a distal end, a longitdinal axis extending there between and an interior, said self-expanding stent further including at least two spaced apart longitudinal legs having a distal and proximal ends, said distal ends of said legs attached to said proximal end of said self-expanding stent, said legs extending proximally away from said self-expanding stent, each said leg including a flange adjacent its proximal end, said flanges are set within said grooves of said inner shaft, thereby releasably attaching said self-expanding expanding stent to said inner shaft.
Claim 6
Dependent Claim
199 words
A stent delivery apparatus comprising: a) an outer sheath, comprising an elongated tubular member having distal and proximal ends; b) an inner shaft located coaxially within said outer sheath, said inner shaft having a distal end and a proximal end, said distal end of said inner shaft further including at least two grooves disposed therein; c) a stop releasably affixed on an exterior surface of the inner shaft adjacent its proximal end, said stop being configured to allow said outer sheath to move a predetermined distance, thereby enabling partial deployment of a self-expanding stent; and d) a substantially cylindrical self-expanding stent, located within said outer sheath, said self-expanding stent having a proximal end, a distal end, a longitdinal axis extending there between and an interior, said self-expanding stent further including at least two spaced apart longitudinal legs having a distal and proximal ends, said distal ends of said legs attached to said proximal end of said self-expanding stent, said legs extending proximally away from said self-expanding stent, each said leg including a flange adjacent its proximal end, said flanges are set within said grooves of said inner shaft, thereby releasably attaching said self-expanding expanding stent to said inner shaft.
Claim 7
Dependent Claim
18 words
The apparatus according to claim 4 , wherein said stent is made from a super elastic Nickel-Titanium alloy.
Claim 8
Dependent Claim
14 words
The apparatus according to claim 4 wherein said flanges and said grooves are T-shaped.
Claim 9
Dependent Claim
28 words
The apparatus according to claim 4 wherein said flanges fit completely within said grooves so that said stent adds no additional outside diameter size to said inner shaft.
Claim 10
Dependent Claim
26 words
The apparatus according to claim 4 wherein said legs extend distally and axially from said self-expanding stent when said self-expanding stent is deployed within a body.
Claim 11
Dependent Claim
14 words
The apparatus according to claim 4 wherein said flanges and said grooves are T-shaped.
Claim 12
Dependent Claim
21 words
The apparatus according to claim 4 wherein said longitudinal legs are equally spaced about said proximal end of said expandable stent.
Claim 13
Dependent Claim
16 words
The apparatus according to claim 4 wherein said flanges on said longitudinal legs are substantially T-shaped.
Claim 14
Dependent Claim
18 words
The apparatus according to claim 4 wherein said stop is semi-cylindrical and snap fits over said inner shaft.
Claim 15
Dependent Claim
22 words
The apparatus according to claim 4 wherein said stop has an outside diameter larger than an inside diameter of said outer sheath.
References Cited (Backward Citations)
US3585707A
Cited
GB1205743A
Cited
US3657744A
Cited
US4187390A
Cited
US4169464A
Cited
USRE31618E
Cited
US4317451A
Cited
US4850999A
Cited
US4441216A
Cited
US4731073A
Cited
US4604762A
Cited
US4413754A
Cited
US4553545A
Cited
US4655771A
Cited
US4655771B1
Cited
US4503569A
Cited
US4925445A
Cited
US4665906A
Cited
US4572186A
Cited
US6017364A
Cited
US5275622A
Cited
US5662700A
Cited
US5693083A
Cited
US5669936A
Cited
US5749920A
Cited
US4787899A
Cited
US6030413A
Cited
US5397345A
Cited
US5876397A
Cited
JPS60220030A
Cited
US4562596A
Cited
US4617932A
Cited
US4580568A
Cited
US4728328A
Cited
US4732152A
Cited
US4705517A
Cited
US5102417A
Cited
US4733665A
Cited
US4733665B1
Cited
US4733665C2
Cited
US4776337A
Cited
US4739762A
Cited
JPS62231657A
Cited
US4739762B1
Cited
US4776337B1
Cited
US4681110A
Cited
WO1987004935A1
Cited
US4875480A
Cited
US5026337A
Cited
US5104399A
Cited
US4907336A
Cited
US5314444A
Cited
US4800882A
Cited
US5041126A
Cited
US4769029A
Cited
US4969458A
Cited
US5131908A
Cited
US4990131A
Cited
US5133732A
Cited
US4886062A
Cited
US4784137A
Cited
US4822341A
Cited
US5266073A
Cited
US5192307A
Cited
US5957973A
Cited
US4832055A
Cited
US4990151A
Cited
US5304197A
Cited
US5195984A
Cited
US4913141A
Cited
US5019085A
Cited
US4950227A
Cited
US4856516A
Cited
US5443500A
Cited
US5078726A
Cited
US5163958A
Cited
US5035694A
Cited
US5114423A
Cited
US4990155A
Cited
US4994071A
Cited
US5100422A
Cited
US5104400A
Cited
US5152782A
Cited
US4955899A
Cited
US5045072A
Cited
US5171262A
Cited
US5015253A
Cited
US5207695A
Cited
US5084065A
Cited
US5026377A
Cited
US5292331A
Cited
US5104404A
Cited
US5035706A
Cited
US5176660A
Cited
US5330528A
Cited
US5246445A
Cited
US5123917A
Cited
US5360443A
Cited
US5591229A
Cited
US5578072A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2008-01-18 | 2008-07-19 | 2009-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2012-01-18 | 2012-07-19 | 2013-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2016-01-18 | 2016-07-19 | 2017-01-18 | $7700.00 | Window Closed / Lapsed |