WO1998007390B1 - Stent delivery system having stent securement apparatus - Google Patents
Stent delivery system having stent securement apparatusInfo
- Publication number
- WO1998007390B1 WO1998007390B1 PCT/US1997/014980 US9714980W WO9807390B1 WO 1998007390 B1 WO1998007390 B1 WO 1998007390B1 US 9714980 W US9714980 W US 9714980W WO 9807390 B1 WO9807390 B1 WO 9807390B1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- stent
- catheter
- balloon
- assembly according
- tube component
- Prior art date
Links
- 239000012530 fluid Substances 0.000 claims abstract 5
- 238000000034 method Methods 0.000 claims 11
- 239000000853 adhesive Substances 0.000 claims 1
- 230000001070 adhesive effect Effects 0.000 claims 1
- 229920000642 polymer Polymers 0.000 claims 1
- 230000000452 restraining effect Effects 0.000 claims 1
- 230000000717 retained effect Effects 0.000 claims 1
Abstract
A system/assembly for delivery and deployment of an inflation expandable stent within a vessel, comprising a catheter having proximal and distal ends; a stent, inflation expandable from a delivery diameter to a deployment diameter, such that the delivery diameter is reduced from the deployment diameter for conforming the stent to the catheter, such that the stent, in its delivery diameter, is coaxially mounted on the catheter near the catheter distal end; an expandable inflation means coaxially mounted on the catheter axially within the stent, for expansion of the stent from the delivery diameter to the deployment diameter upon application of fluid deployment pressure to the inflation means; and a securement component coaxially mounted on the catheter, axially within the expandable inflation means, the securement component designed and adapted to provide a securement pressure to the stent in the delivery diameter to maintain the stent in position on the catheter during delivery to the deployment site.
Claims
AMENDED CLAIMS
[received by the International Bureau on 18 February 1998 (18.02.98); original claims 31, 32, 34, 39, 55 and 57 amended; remaining claims unchanged (4 pages)]
mounting a stent on the balloon and mounting body at that position.
27. In a balloon catheter apparatus, the method of enlarging the catheter profile for facilitating the mounting of a stent thereon, comprising: selectively providing an enlarged mounting body within the balloon in a position to receive a stent.
28. The method of claim 27 wherein the enlarged body is provided by sliding it into the position.
29. The method of claim 27 wherein the enlarged body is provided by inflating an inner balloon within the catheter balloon. 30. The method of claim 27 wherein the enlarged body is provided by compressing a body already in the position to enlarge its diameter for receiving a stent.
31. The assembly of claim 1 , the inflatable means being an expandable balloon coaxially mounted on the catheter axially within the stent, for expansion of the stent from the delivery diameter to the deployment diameter upon application of fluid deployment pressure to the balloon; and the securement component being an expandable tube component coaxially mounted on the catheter, axially within the expandable balloon, the tube component designed and adapted for fluid expansion to provide a securement pressure to the stent in the delivery diameter to maintain the stent in position on the catheter during delivery to the deployment site. 32. The assembly according to claim 31 , wherein the expandable tube component is sized and constructed to be independently fluid expandable to no more than the delivery diameter and to no more than the securement pressure.
33. The assembly according to claim 31 , wherein the tube component is essentially equal in length to the stent and wherein the stent is positioned on the assembly essentially coextensive with the tube component.
34. The assembly according to claim 32, wherein the tube component is comprised of at least two inflatable pouches.
35. The assembly according to claim 34, wherein the tube component is comprised of three pouches, with a proximal and distal pouch inflatable to a greater pressure than a medial pouch.
55
36. A method for delivering and deploying a stent using an assembly according to claim 31, comprising: providing a catheter having proximal and distal ends, with an expandable balloon coaxially mounted on the catheter, and an expandable tube component coaxially mounted on the catheter, axially within the expandable balloon, so that the balloon and the tube component are each in an unexpanded condition; providing a stent which is expandable from a delivery diameter to a deployment diameter; mounting the stent, in a diameter greater than the delivery diameter, on the balloon; contracting the stent to the delivery diameter to conform to an overall profile of the catheter, the tube component and the balloon; inflating the tube component to provide to the stent a securement pressure to retain the stent in the delivery diameter; delivering the assembly to a deployment site; and inflating the balloon to expand the stent to its deployment diameter.
37. The method according to claim 36, wherein the expandable tube component is sized and constructed to be fluid expandable to no more than the delivery diameter. 38. The method according to claim 36, wherein the tube component is essentially equal in length to the stent and wherein the stent is positioned on the assembly essentially coextensive with the tube component.
39. The method according to claim 36, wherein the tube component is comprised of at least two inflatable pouches. 40. The method according to claim 39, wherein the tube component is comprised of three pouches, with a proximal and distal pouch inflatable to a greater pressure than a medial pouch.
41. The assembly according to claim 1 , the catheter having an inner shaft, the inflatable means being an expandable balloon coaxially mounted on the catheter axially; and the securement component comprising a tube component coaxially mounted on the
56
51. The assembly according to claim 50, comprising two sleeves, one covering each end of the stent, when the stent is in its delivery diameter.
52. The assembly according to claim 42, wherein the tube component is slidable along the inner shaft and is attached to a retracting means, such that after the stent has been deployed, the user may slide the tube component proximally along the inner shaft.
53. A method for delivering and deploying a stent using an assembly according to claim 41, comprising: providing a catheter having proximal and distal ends, with an expandable balloon coaxially mounted on the catheter, and a tube component having a plurality of ribs coaxially mounted on the catheter, axially within the expandable balloon, so that the balloon is in an unexpanded condition; providing a stent which is expandable from a delivery diameter to a deployment diameter; mounting the stent, in a diameter greater than the delivery diameter, on the balloon; contracting the stent to the delivery diameter to conform to an overall profile of the catheter, the tube component and the balloon; delivering the assembly to a deployment site; and inflating the balloon to expand the stent to its deployment diameter.
54. The method according to claim 53, wherein the tube component is a corrugate tubing adhered to the catheter formed of a low modulus polymer and having a diameter of approximately that of the delivery diameter.
55. The assembly of claim 1, the inflatable means comprising an expandable balloon, further comprising an annular collar coaxially located at the catheter distal end portion, the expandable balloon coaxially mounted over the collar at the catheter distal end portion, the balloon being expandable from a contracted to an expanded state, the stent coaxially mounted on the balloon, the reduced condition conforming the stent to the balloon and catheter, the stent having at least an end portion overlying the balloon, the system further comprising a cup coaxially mounted on the catheter distal end portion, the cup having a first end portion restraining the stent end portion and the cup and collar
57
cooperatively constructed and arranged to retain the stent end portion on the catheter in the stent reduced condition when the balloon is in the contracted state, the balloon and catheter cooperatively constructed and arranged to cause expansion of the balloon from the contracted to the expanded state and to release the stent end portion from the cup end portion.
56. The assembly according to claim 55, wherein the cup is axially spaced from the collar.
57. The assembly according to claim 55, wherein the cup has a second end portion fixed to the catheter, the collar abutting the stent as a stop. 58. The assembly according to claim 55, wherein the cup first end portion overlies the stent end portion.
59. The assembly according to claim 55, wherein the cup is elastomeric.
60. The assembly according to claim 55, wherein the cup is rigid.
61. The assembly according to claim 57, wherein the second end portion is fixed with adhesive.
62. The assembly according to claim 55, wherein the collar is formed as a single member with the catheter.
63. The assembly according to claim 55, wherein the stent end portion is a distal end portion and wherein the cup and collar cooperate to retain the stent at the stent distal end portion.
64. The assembly according to claim 55, wherein the collar is axially positioned exterior to the stent at a stent end portion opposite the stent end portion retained by the cup.
65. The assembly according to claim 64 wherein the collar is formed as a single member with the catheter.
66. The assembly according to claim 55, wherein the collar is a mounting ring axially positioned between stent end portions.
67. The assembly according to claim 66, wherein the mounting ring is formed as a single member with the catheter. 68. The assembly according to claim 66, wherein at least a portion of the mounting ring is contained by the cup.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU41625/97A AU739710B2 (en) | 1996-08-23 | 1997-08-22 | Stent delivery system having stent securement apparatus |
| EP97939560A EP0932377B1 (en) | 1996-08-23 | 1997-08-22 | Stent delivery system having stent securement apparatus |
| DE69736236T DE69736236T2 (en) | 1996-08-23 | 1997-08-22 | STENT MOUNTING SYSTEM WITH STENT FUSER |
| CA002263492A CA2263492C (en) | 1996-08-23 | 1997-08-22 | Stent delivery system having stent securement apparatus |
| JP51104598A JP3968444B2 (en) | 1996-08-23 | 1997-08-22 | Stent delivery mechanism with stent fixation device |
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US69745396A | 1996-08-23 | 1996-08-23 | |
| US08/702,150 US6007543A (en) | 1996-08-23 | 1996-08-23 | Stent delivery system with stent securement means |
| US08/702,150 | 1996-08-23 | ||
| US08/701,979 US6395008B1 (en) | 1996-08-23 | 1996-08-23 | Stent delivery device using stent cups and mounting collars |
| US08/697,453 | 1996-08-23 | ||
| US08/701,979 | 1996-08-23 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| WO1998007390A1 WO1998007390A1 (en) | 1998-02-26 |
| WO1998007390B1 true WO1998007390B1 (en) | 1998-04-09 |
| WO1998007390A9 WO1998007390A9 (en) | 1998-06-04 |
Family
ID=27418655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/US1997/014980 WO1998007390A1 (en) | 1996-08-23 | 1997-08-22 | Stent delivery system having stent securement apparatus |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0932377B1 (en) |
| WO (1) | WO1998007390A1 (en) |
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| DE19840701A1 (en) * | 1998-08-21 | 2000-02-24 | Biotronik Mess & Therapieg | Balloon catheter |
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| US5976155A (en) | 1999-03-05 | 1999-11-02 | Advanced Cardiovascular Systems, Inc. | System for removably securing a stent on a catheter assembly and method of use |
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| JP5178984B2 (en) | 2000-07-24 | 2013-04-10 | グレイゼル、ジェフリー | Stiffening balloon catheter for dilatation and stenting |
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| US8726483B2 (en) * | 2011-07-29 | 2014-05-20 | Abbott Cardiovascular Systems Inc. | Methods for uniform crimping and deployment of a polymer scaffold |
| US20130197353A1 (en) | 2012-01-27 | 2013-08-01 | Randolf Von Oepen | Radiopaque marker for a catheter |
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| WO2015116787A1 (en) * | 2014-01-29 | 2015-08-06 | Gregory Sullivan | Balloon with mandrel support guidewire |
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| US9375336B1 (en) | 2015-01-29 | 2016-06-28 | Intact Vascular, Inc. | Delivery device and method of delivery |
| US10993824B2 (en) | 2016-01-01 | 2021-05-04 | Intact Vascular, Inc. | Delivery device and method of delivery |
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-
1997
- 1997-08-22 WO PCT/US1997/014980 patent/WO1998007390A1/en active IP Right Grant
- 1997-08-22 EP EP97939560A patent/EP0932377B1/en not_active Expired - Lifetime
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