US5630830A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device and method for mounting stents on delivery systems
Assignee: Medtronic Inc
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Filing: 1996-04-10
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Granted: 1997-05-20
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Expires: 2016-04-10
Abstract
Abstract A device for mounting a stent on a delivery system such as a balloon catheter and methods of making and using the device. Typically, the device includes an elongated, preferably transparent body having an axial aperture and two axial grooves in the outside surface. A stent is located in the axial aperture, preferably in a correspondingly configured recess. A sleeve of low friction, preferably transparent, material is situated inside the stent with the stent in tension on the sleeve. To mount the stent on the a balloon catheter or the like, the balloon is inserted into the sleeve with the balloon preferably in compression. The position of the balloon within the device is visible through the sleeve and body. The sleeve is pulled out of the aperture, then the body is split along the grooves and removed. Typically, the device is made by placing a tubular sleeve of low friction material over a pin, placing a stent in tension over the sleeve, forming two body halves having cooperating grooves, bringing the body halves together to form an axial aperture over said stent, bonding the two body halves together and removing the pin.
Inventors
- 👤 Marcel A. E. Verbeek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:56
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/95; A61F2/958; A61F2/0095; A61F2/9522; A61M; A61M25/00; A61M25/01; A61M25/06; A61M25/0662; A61M25/0668
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
108 words
A device for mounting a stent on a delivery system which comprises: an elongated body having an axial aperture therethrough; a stent in said axial aperture in engagement with a wail of said aperture; a sleeve of low friction material in said stent; tubular entrance means having a proximal end secured to said sleeve and extending beyond an end of said axial aperture for axially moving said sleeve from said axial aperture; and means for permitting said body to be split along said axial aperture comprising grooves running substantially parallel to said axial aperture in an exterior surface of said body to remove said body from said stent.
Claim 2
Independent Claim
108 words
A device for mounting a stent on a delivery system which comprises: an elongated body having an axial aperture therethrough; a stent in said axial aperture in engagement with a wail of said aperture; a sleeve of low friction material in said stent; tubular entrance means having a proximal end secured to said sleeve and extending beyond an end of said axial aperture for axially moving said sleeve from said axial aperture; and means for permitting said body to be split along said axial aperture comprising grooves running substantially parallel to said axial aperture in an exterior surface of said body to remove said body from said stent.
Claim 3
Dependent Claim
38 words
The device according to claim 1 wherein said tubular entrance tapers from a wider distal end to a narrower proximal end for receiving an end of a delivery means and guiding said delivery means into said axial aperture.
Claim 4
Dependent Claim
14 words
The device according to claim 1 wherein said delivery means is a balloon catheter.
Claim 5
Dependent Claim
34 words
The device according to claim 1 wherein said body is formed from a material having less resistance to splitting in a direction substantially parallel to said axial aperture than in a direction transverse thereto.
Claim 6
Dependent Claim
23 words
The device according to claim 1 further including tabs secured to said body for gripping by a user's fingers in splitting said body.
Claim 7
Dependent Claim
24 words
The device according to claim 1 further including recesses in an interior wall of said aperture, said recesses configured to receive said stent therein.
Claim 8
Dependent Claim
31 words
The device according to claim 1 wherein said sleeve is formed from a low friction material selected from the group consisting of fluorinated ethylene-propylene resins, polytetrafluoroethylene and mixtures and copolymers thereof.
Claim 9
Independent Claim
140 words
A device for mounting a stent on a balloon catheter which comprises: elongated body means having an axial aperture therethrough for receiving a stent; a stent within said elongated aperture in engagement with a wall of said axial aperture; retaining means in said axial aperture for restraining said stent against axial movement relative to said axial aperture; tubular sleeve means formed from low friction material within and in pressure contact with said stent; entrance means secured to said sleeve for guiding a balloon catheter into said axial aperture and for manually withdrawing said sleeve from said axial aperture; and means for splitting said body along said axial aperture comprising grooves running substantially parallel to said axial aperture in an exterior surface of said body and tabs secured to said body for gripping by a user's fingers in splitting said body.
Claim 10
Independent Claim
140 words
A device for mounting a stent on a balloon catheter which comprises: elongated body means having an axial aperture therethrough for receiving a stent; a stent within said elongated aperture in engagement with a wall of said axial aperture; retaining means in said axial aperture for restraining said stent against axial movement relative to said axial aperture; tubular sleeve means formed from low friction material within and in pressure contact with said stent; entrance means secured to said sleeve for guiding a balloon catheter into said axial aperture and for manually withdrawing said sleeve from said axial aperture; and means for splitting said body along said axial aperture comprising grooves running substantially parallel to said axial aperture in an exterior surface of said body and tabs secured to said body for gripping by a user's fingers in splitting said body.
Claim 11
Dependent Claim
38 words
The device according to claim 8 wherein said tubular entrance tapers from a wider distal end to a narrower proximal end for receiving an end of a delivery means and guiding said delivery means into said axial aperture.
Claim 12
Dependent Claim
34 words
The device according to claim 8 wherein said body is formed from a material having less resistance to splitting in a direction substantially parallel to said axial aperture than in a direction transverse thereto.
Claim 13
Dependent Claim
24 words
The device according to claim 8 further including recesses in an interior wall of said aperture, said recesses configured to receive said stent therein.
Claim 14
Dependent Claim
31 words
The device according to claim 8 wherein said sleeve is formed from a low friction material selected from the group consisting of fluorinated ethylene-propylene resins, polytetrafluoroethylene and mixtures and copolymers thereof.
Claim 15
Independent Claim
82 words
A method of making an assembly for mounting a stent on a delivery system which comprises the steps of: forming an elongated tubular sleeve having a handle portion at one end; placing a stent over said sleeve; forming two halves of a body having axial depressions therealong for cooperatively forming an axial aperture and having manually separable weakened lines along said body; placing said sleeve on one of said halves; and bonding said halves together with said stent in said central aperture.
Claim 16
Independent Claim
82 words
A method of making an assembly for mounting a stent on a delivery system which comprises the steps of: forming an elongated tubular sleeve having a handle portion at one end; placing a stent over said sleeve; forming two halves of a body having axial depressions therealong for cooperatively forming an axial aperture and having manually separable weakened lines along said body; placing said sleeve on one of said halves; and bonding said halves together with said stent in said central aperture.
Claim 17
Dependent Claim
50 words
The method of making an assembly according to claim 13 including the further steps of inserting a pin having a cross section substantially equal to sleeve interior cross section into said sleeve prior to placing said stent over said sleeve and of removing said pin after bonding said halves together.
Claim 18
Dependent Claim
35 words
The method of making an assembly according to claim 14 wherein said tubular sleeve is formed with an outside diameter greater than stent inside diameter so that said stent is in tension over said sleeve.
Claim 19
Dependent Claim
30 words
The method of making an assembly according to claim 13 further including forming an outwardly extending tab on each said body half adjacent to an end of said body half.
Claim 20
Dependent Claim
35 words
The method of making an assembly according to claim 13 wherein said sleeve is formed from a low friction material selected from the group consisting of fluorinated ethylene-propylene resins, polytetrafluoroethylene and mixtures and copolymers thereof.
Claim 21
Independent Claim
106 words
A method of mounting a stent on a delivery system which comprises the steps of: providing a body having an axial aperture therethrough, a sleeve in said aperture and a stent between the outer surface of said sleeve and said aperture, said stent in tension over said sleeve; inserting a delivery system into said sleeve, said delivery system's balloon in compression is said sleeve; removing said sleeve from said axial aperture, leaving an assembly of said stent surrounding and in pressure contact with said delivery system; and tearing said body into two portions along lines that intersect the length of said aperture to release said assembly.
Claim 22
Independent Claim
106 words
A method of mounting a stent on a delivery system which comprises the steps of: providing a body having an axial aperture therethrough, a sleeve in said aperture and a stent between the outer surface of said sleeve and said aperture, said stent in tension over said sleeve; inserting a delivery system into said sleeve, said delivery system's balloon in compression is said sleeve; removing said sleeve from said axial aperture, leaving an assembly of said stent surrounding and in pressure contact with said delivery system; and tearing said body into two portions along lines that intersect the length of said aperture to release said assembly.
Claim 23
Dependent Claim
59 words
The method of mounting a stent on a delivery system according to claim 18 wherein said body has grooves on an external surface substantially parallel with said axial aperture and tabs extending from said body adjacent to one end of said body and said tearing is accomplished by pulling said tabs apart to split said body along said grooves.
Claim 24
Dependent Claim
67 words
The method of mounting a stent on a delivery system according to claim 18 wherein said sleeve includes a handle portion extending beyond said axial aperture having a generally conical central opening communicating with said sleeve, said delivery system's balloon is inserted through said central opening and compressed during entry into said sleeve and said sleeve is removed from said axial aperture by pulling on said handle.
Claim 25
Dependent Claim
39 words
The method of mounting a stent on a delivery system according to claim 18 wherein said sleeve is formed from a low friction material selected from the group consisting of fluorinated ethylene-propylene resins, polytetrafluoroethylene and mixtures and copolymers thereof.
References Cited (Backward Citations)
US3382872A
Cited
US3677244A
Cited
US3877429A
Cited
US4243050A
Cited
US4166469A
Cited
US4345606A
Cited
US5266073A
Cited
US4830003A
Cited
US4913141A
Cited
US5026377A
Cited
US5108416A
Cited
US5158548A
Cited
US5242399A
Cited
US5344426A
Cited
US5226889A
Cited
US5190058A
Cited
US5387235A
Cited
US5192297A
Cited
US5201757A
Cited
US5368566A
Cited
US5306294A
Cited
US5338296A
Cited
US5360401A
Cited
US5391172A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-05-19 | 2000-11-18 | 2001-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-05-19 | 2004-11-18 | 2005-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-05-19 | 2008-11-18 | 2009-05-20 | $7700.00 | Window Closed / Lapsed |