US6447540B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stent deployment device including splittable sleeve containing the stent
Assignee: Cook Medical Technologies LLC
•
Filing: 1997-11-14
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Granted: 2002-09-10
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Expires: 2017-11-14
Abstract
Abstract A stent deployment device ( 10 ) includes a catheter ( 12 ), a stent ( 14 ) positioned on the catheter ( 12 ), and a sleeve ( 16 ) carried on the catheter ( 12 ). The sleeve ( 16 ) has a portion ( 18 ) extending fully over and containing the stent ( 14 ). The stent deployment device ( 10 ) also includes a mechanism ( 20 ) for splitting at least the portion ( 18 ) of the sleeve ( 16 ) extending over the stent ( 14 ) and, preferably, for splitting the entire sleeve ( 16 ). Splitting of the sleeve portion ( 18 ) permits expansion of the stent ( 14 ). The mechanism ( 20 ) can include an inflatable, nondistending balloon ( 22 ) carried on the catheter ( 12 ), the stent ( 14 ) and the sleeve portion ( 18 ) being positioned over the balloon ( 22 ). The stent ( 14 ) can be self-expanding or can be expanded by the balloon ( 22 ) itself. Alternatively, the mechanism ( 20 ) can include a bulbous end ( 24 ) on the catheter ( 12 ). Longitudinal movement of the bulbous catheter end ( 24 ) with respect to the sleeve ( 16 ) splits at least the sleeve portion ( 18 ), permitting expansion of the stent ( 14 ). As further alternatives, the mechanism ( 20 ) can include a garrote ( 66 ) connected to the sleeve or a partial segment ( 62 ) of the sleeve ( 16 ) folded back alongside the stent ( 14 ). The sleeve ( 16 ) can be the same length as the catheter ( 12 ) or can be shorter than the catheter ( 12 ). In the former case, the mechanism ( 20 ) can include a pair of graspable wings ( 56 ) for splitting the full length of the sleeve ( 16 ). It is preferred that at least the portion ( 18 ) of the sleeve ( 16 ) extending over the stent ( 14 ) includes a longitudinally extending structure 46 for ensuring that the sleeve portion ( 18 ) will in fact split upon operation of the mechanism ( 20 ).
Inventors
- 👤 Arthur B. Fontaine
- 👤 Susan DosPassos
- 👤 Brian L. Bates
- 👤 Scott E. Boatman
- 👤 Michael C. Hoffa
- 👤 Thomas A. Osborne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:32
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/95; A61F2/962; A61F2/97; A61F2/958; A61F2002/9505; A61F2002/9511; A61F2002/9583; A61M; A61M25/00; A61M25/01; A61M25/06; A61M25/0662; A61M25/0668; A61M25/10
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
80 words
A stent deployment device, comprising: a catheter; a self-expanding stent positioned on the catheter; a sleeve carried on the catheter, the sleeve having a portion extending over and containing the stent; and a mechanism adjacent to a distal end of sleeve for splitting at least the portion of the sleeve extending over the stent, whereby the mechanism need extend radially outwardly only to an extent required to expand the sleeve for splitting thereof thereby permitting self-expansion of the stent thereafter.
Claim 2
Dependent Claim
80 words
A stent deployment device, comprising: a catheter; a self-expanding stent positioned on the catheter; a sleeve carried on the catheter, the sleeve having a portion extending over and containing the stent; and a mechanism adjacent to a distal end of sleeve for splitting at least the portion of the sleeve extending over the stent, whereby the mechanism need extend radially outwardly only to an extent required to expand the sleeve for splitting thereof thereby permitting self-expansion of the stent thereafter.
Claim 3
Dependent Claim
26 words
The device ( 10 ) according to claim 1 , wherein the sleeve ( 16 ) is composed of polyamide, nylon, polytetrafluoroethylene, polyethylene or a polycaprolactam.
Claim 4
Dependent Claim
15 words
The device according to claim 2 further comprising a lubricious outer surface on the sleeve.
Claim 5
Dependent Claim
27 words
The device ( 10 ) according to claim 3 , wherein the lubricious surface ( 42 ) comprises a layer ( 44 ) of a hydrophilic material.
Claim 6
Dependent Claim
27 words
The device ( 10 ) according to claim 3 , wherein the lubricious surface ( 42 ) includes a surface modification of the sleeve ( 16 ).
Claim 7
Dependent Claim
34 words
The device ( 10 ) according to claim 2 , wherein at least the portion ( 18 ) of the sleeve ( 16 ) includes a preferentially splittable, longitudinally extending structure ( 46 ).
Claim 8
Dependent Claim
30 words
The device ( 10 ) according to claim 6 , wherein the preferentially splittable structure ( 46 ) comprises at least one area ( 48 ) of reduced radial thickness.
Claim 9
Dependent Claim
70 words
The device ( 10 ) according to claim 1 , wherein the sleeve ( 16 ) includes a proximal end ( 38 ) opposite the portion ( 18 ) extending over the stent ( 14 ), and wherein the mechanism ( 20 ) further comprises a means ( 54 ) for splitting the sleeve ( 16 ) between the proximal end ( 38 ) and the portion ( 18 ).
Claim 10
Dependent Claim
18 words
The device ( 10 ) according to claim 1 , wherein the sleeve ( 16 ) is indistensable.
Claim 11
Dependent Claim
37 words
The device according to claim 1 , wherein the mechanism comprises an inflatable balloon carried on the catheter and wherein the stent and the portion of the sleeve extending over the stent are positioned over the balloon.
Claim 12
Dependent Claim
99 words
A stent deployment device, comprising: a catheter; a self-expanding stent positioned on the catheter; a sleeve carried on the catheter, the sleeve having a portion extending over and containing the stent; and a mechanism for splitting at least the portion of the sleeve extending over the stent; wherein the mechanism comprises an inflatable balloon carried on the catheter; wherein the stent and the portion of the sleeve extending over the stent are positioned over the balloon; and wherein inflation of the balloon splits at least the portion of the sleeve over the stent, thereby permitting expansion of the stent.
Claim 13
Dependent Claim
99 words
A stent deployment device, comprising: a catheter; a self-expanding stent positioned on the catheter; a sleeve carried on the catheter, the sleeve having a portion extending over and containing the stent; and a mechanism for splitting at least the portion of the sleeve extending over the stent; wherein the mechanism comprises an inflatable balloon carried on the catheter; wherein the stent and the portion of the sleeve extending over the stent are positioned over the balloon; and wherein inflation of the balloon splits at least the portion of the sleeve over the stent, thereby permitting expansion of the stent.
Claim 14
Dependent Claim
26 words
The device ( 10 ) according to claim 11 , wherein the sleeve ( 16 ) is composed of polyamide, nylon, polytetrafluoroethylene, polyethylene or a polycaprolactam.
Claim 15
Dependent Claim
34 words
The device ( 10 ) according to claim 12 , wherein at least the portion ( 18 ) of the sleeve ( 16 ) includes a preferentially splittable, longitudinally extending structure ( 46 ).
Claim 16
Dependent Claim
70 words
The device ( 10 ) according to claim 11 , wherein the sleeve ( 16 ) includes a proximal end ( 32 ) opposite the portion ( 18 ) extending over the stent ( 14 ), and wherein the mechanism ( 20 ) further comprises a means ( 54 ) for splitting the sleeve ( 16 ) between the proximal end ( 32 ) and the portion ( 18 ).
Claim 17
Dependent Claim
72 words
A stent deployment device, comprising: a catheter; a self-expanding stent positioned on the catheter; a sleeve carried on the catheter, the sleeve having a portion extending over and containing the stent; and a mechanism adjacent to a distal end of the sleeve for splitting at least the portion of the sleeve extendin over the stent, thereby permitting expansion of the stent; wherein the sleeve is composed of a medical grade, biodegradable material.
Claim 18
Dependent Claim
72 words
A stent deployment device, comprising: a catheter; a self-expanding stent positioned on the catheter; a sleeve carried on the catheter, the sleeve having a portion extending over and containing the stent; and a mechanism adjacent to a distal end of the sleeve for splitting at least the portion of the sleeve extendin over the stent, thereby permitting expansion of the stent; wherein the sleeve is composed of a medical grade, biodegradable material.
Claim 19
Dependent Claim
26 words
The device ( 10 ) according to claim 15 , wherein the biodegradable material is a polyethylene, polypropylene or polyoxypropylene glycolic sugar, or a polylactic sugar.
Claim 20
Dependent Claim
127 words
A stent deployment device, comprising: a catheter; a self-expanding stent positioned on the catheter; a sleeve carried on the catheter, the sleeve having a portion extending fully over and containing the stent, wherein at least the portion of the sleeve includes a preferentially splittable, longitudinally extending structure defined by a plurality of longitudinally extending adjacent strips; and a mechanism for splitting at least the portion of the sleeve extending over the stent, thereby permitting expansion of the stent; wherein the mechanism comprises an inflatable balloon carried on the catheter; wherein the stent, and the portion of the sleeve extending over the stent, are positioned over the balloon; and wherein expansion of the balloon during inflation splits at least the portion of the sleeve and expands the stent.
Claim 21
Dependent Claim
127 words
A stent deployment device, comprising: a catheter; a self-expanding stent positioned on the catheter; a sleeve carried on the catheter, the sleeve having a portion extending fully over and containing the stent, wherein at least the portion of the sleeve includes a preferentially splittable, longitudinally extending structure defined by a plurality of longitudinally extending adjacent strips; and a mechanism for splitting at least the portion of the sleeve extending over the stent, thereby permitting expansion of the stent; wherein the mechanism comprises an inflatable balloon carried on the catheter; wherein the stent, and the portion of the sleeve extending over the stent, are positioned over the balloon; and wherein expansion of the balloon during inflation splits at least the portion of the sleeve and expands the stent.
Claim 22
Dependent Claim
162 words
A stent deployment device, comprising; a catheter; a self-expanding stent positioned on the catheter; a sleeve carried on the catheter, the sleeve being substantially the same length as the catheter and having a proximal end fixed to the catheter, and the sleeve being composed of nylon and having a portion extending fully over and compressing the stent; wherein at least the portion of the sleeve includes a preferentially splittable, longitudinally extending structure comprising at least one area of reduced radial thickness defined by an inward V-shaped notch extending longitudinally therealong; and a mechanism for splitting at least the portion of the sleeve extending over the stent, thereby permitting expansion of the stent; wherein the mechanism comprises an inflatable, nondistending balloon carried on the catheter; wherein the stent, and the portion of the sleeve extending over the stent, are positioned over the balloon; and wherein expansion of the balloon during inflation splits at least the portion of the sleeve and expands the stent.
Claim 23
Dependent Claim
162 words
A stent deployment device, comprising; a catheter; a self-expanding stent positioned on the catheter; a sleeve carried on the catheter, the sleeve being substantially the same length as the catheter and having a proximal end fixed to the catheter, and the sleeve being composed of nylon and having a portion extending fully over and compressing the stent; wherein at least the portion of the sleeve includes a preferentially splittable, longitudinally extending structure comprising at least one area of reduced radial thickness defined by an inward V-shaped notch extending longitudinally therealong; and a mechanism for splitting at least the portion of the sleeve extending over the stent, thereby permitting expansion of the stent; wherein the mechanism comprises an inflatable, nondistending balloon carried on the catheter; wherein the stent, and the portion of the sleeve extending over the stent, are positioned over the balloon; and wherein expansion of the balloon during inflation splits at least the portion of the sleeve and expands the stent.
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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) | 2005-09-09 | 2006-03-11 | 2006-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2009-09-09 | 2010-03-11 | 2010-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2013-09-09 | 2014-03-11 | 2014-09-10 | $7700.00 | Window Closed / Lapsed |