US6419685B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Balloon catheter with stent securement means
Assignee: Boston Scientific Scimed Inc
•
Filing: 2000-11-30
•
Granted: 2002-07-16
•
Expires: 2020-11-30
Abstract
Abstract An assembly for delivery and deployment of an inflation expandable stent within a vessel is comprised of a catheter, an inflation expandable stent, an expandable balloon, and a securement means such as a corrugated tube component or an expandable tube component. The tube component is mounted on the inner shaft beneath the balloon and provides increased securement to the stent in a reduced delivery diameter to maintain the stent on the catheter during delivery to the deployment site. The tube component is adhered to the inner shaft and has a plurality of ribs or is fluid expandable to no more than the delivery diameter. and may be comprised of more than one separately inflatable pouch expandable to provide the stent with a substrate seat with increased friction and to decrease the slack in stent recoil crimping. The assembly is used in a method for delivering and deploying a stent, and also adds safety when loading/crimping the stent onto a balloon.
Inventors
- 👤 Fernando Di Caprio
- 👤 Stanley A. Nordin
- 👤 Louis G. Ellis
- 👤 Andrew J. Dusbabek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:02
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/10; A61M25/1011; A61F; A61F2/00; A61F2/95; A61F2/9522; A61F2/958; A61M25/104; A61F2002/9583; A61F2002/9586; A61M2025/1013; A61M2025/1043; A61M2025/1063; A61M2025/1079; A61M2025/1093; A61M25/1018; A61M25/10184
Claims Analysis
Total Claims: 50
Claim 1
Independent Claim
150 words
An assembly for delivery and deployment of a stent within a vessel, comprising: a catheter having a proximal and distal ends; a stent, 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 balloon coaxially mounted on the catheter within the stent for expansion of the stent from the delivery diameter to the deployment diameter upon application of deployment pressure to the balloon; and an expandable tube component coaxially mounted on the catheter within the expandable balloon, wherein the expandable balloon and the expandable tube component are independently expandable relative to one another and wherein the expandable balloon is capable of being substantially collapsed when the expandable tube component is fully expanded.
Claim 2
Dependent Claim
150 words
An assembly for delivery and deployment of a stent within a vessel, comprising: a catheter having a proximal and distal ends; a stent, 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 balloon coaxially mounted on the catheter within the stent for expansion of the stent from the delivery diameter to the deployment diameter upon application of deployment pressure to the balloon; and an expandable tube component coaxially mounted on the catheter within the expandable balloon, wherein the expandable balloon and the expandable tube component are independently expandable relative to one another and wherein the expandable balloon is capable of being substantially collapsed when the expandable tube component is fully expanded.
Claim 3
Dependent Claim
33 words
The assembly according to claim 1 , the tube component designed and adapted for expansion to provide a securement pressure to the stent in the delivery diameter during delivery to the deployment site.
Claim 4
Dependent Claim
35 words
The assembly according to claim 2 , wherein the expandable tube component is sized and constructed to be fluid expandable to not more than the delivery diameter and to no more than the securement pressure.
Claim 5
Dependent Claim
19 words
The assembly according to claim 2 , wherein the tube component is comprised of at least two inflatable pouches.
Claim 6
Dependent Claim
16 words
The assembly according to claim 4 , wherein the tube component is comprised of three pouches.
Claim 7
Dependent Claim
29 words
The assembly according to claim 5 , the three pouches being a proximal pouch, a medial pouch and a distal pouch, the pouches being axially spaced on the catheter.
Claim 8
Dependent Claim
23 words
The assembly according to claim 6 , wherein the proximal and distal pouches are inflatable to a greater pressure than a medial pouch.
Claim 9
Dependent Claim
43 words
The assembly according to claim 6 , the proximal, distal and medial pouches having an expanded diameter and an unexpanded diameter, wherein the expanded diameter of the medial pouch is less than the expanded diameter of the proximal pouch or the distal pouches.
Claim 10
Dependent Claim
29 words
The assembly according to claim 8 , wherein the expanded diameter of the medial pouch is less than the expanded diameter of the proximal pouch and the distal pouch.
Claim 11
Dependent Claim
13 words
The assembly according to claim 5 , wherein the pouches are separately inflatable.
Claim 12
Dependent Claim
16 words
The assembly according to claim 4 , wherein the at least two pouches are separately inflatable.
Claim 13
Dependent Claim
34 words
The assembly according to claim 1 , 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.
Claim 14
Dependent Claim
14 words
The assembly according to claim 1 , further comprising a plurality of inflation lumens.
Claim 15
Dependent Claim
151 words
A method for delivering and deploying a stent using an assembly according to claim 1 , 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 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.
Claim 16
Dependent Claim
27 words
The method according to claim 14 , wherein the expandable tube component is sized and constructed to be fluid expandable to no more than the delivery diameter.
Claim 17
Dependent Claim
34 words
The method according to claim 14 , 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.
Claim 18
Dependent Claim
19 words
The method according to claim 14 , wherein the tube component is comprised of at least two inflatable pouches.
Claim 19
Dependent Claim
16 words
The assembly according to claim 17 , wherein the at least two pouches are separately inflatable.
Claim 20
Dependent Claim
31 words
The method according to claim 14 , wherein the tube component is comprised of three pouches, with a proximal and distal pouch inflatable to a greater pressure than a medial pouch.
Claim 21
Dependent Claim
13 words
The assembly according to claim 19 , wherein the pouches are separately inflatable.
Claim 22
Dependent Claim
87 words
An assembly for delivery and deployment of a stent within a vessel, comprising: a catheter having a proximal and distal ends; an expandable balloon coaxially mounted on the catheter for expansion upon application of pressure to the balloon; and an expandable tube component coaxially mounted on the catheter within the expandable balloon, wherein the expandable balloon and the expandable tube component are independently expandable relative to one another and wherein the expandable balloon is capable of being substantially collapsed when the expandable tube component is fully expanded.
Claim 23
Dependent Claim
87 words
An assembly for delivery and deployment of a stent within a vessel, comprising: a catheter having a proximal and distal ends; an expandable balloon coaxially mounted on the catheter for expansion upon application of pressure to the balloon; and an expandable tube component coaxially mounted on the catheter within the expandable balloon, wherein the expandable balloon and the expandable tube component are independently expandable relative to one another and wherein the expandable balloon is capable of being substantially collapsed when the expandable tube component is fully expanded.
Claim 24
Dependent Claim
33 words
The assembly according to claim 21 , the tube component designed and adapted for expansion to provide a securement pressure to a stent in its delivery diameter during delivery to a deployment site.
Claim 25
Dependent Claim
35 words
The assembly according to claim 22 , wherein the expandable tube component is sized and constructed to be fluid expandable to not more than the delivery diameter and to no more than the securement pressure.
Claim 26
Dependent Claim
19 words
The assembly according to claim 22 , wherein the tube component is comprised of at least two inflatable pouches.
Claim 27
Dependent Claim
16 words
The assembly according to claim 24 , wherein the tube component is comprised of three pouches.
Claim 28
Dependent Claim
29 words
The assembly according to claim 25 , the three pouches being a proximal pouch, a medial pouch and a distal pouch, the pouches being axially spaced on the catheter.
Claim 29
Dependent Claim
23 words
The assembly according to claim 26 , wherein the proximal and distal pouches are inflatable to a greater pressure than a medial pouch.
Claim 30
Dependent Claim
13 words
The assembly according to claim 25 , wherein the pouches are separately inflatable.
Claim 31
Dependent Claim
43 words
The assembly according to claim 26 , the proximal, distal and medial pouches having an expanded diameter and an unexpanded diameter, wherein the expanded diameter of the medial pouch is less than the expanded diameter of the proximal pouch or the distal pouches.
Claim 32
Dependent Claim
29 words
The assembly according to claim 29 , wherein the expanded diameter of the medial pouch is less than the expanded diameter of the proximal pouch and the distal pouch.
Claim 33
Dependent Claim
16 words
The assembly according to claim 24 , wherein the at least two pouches are separately inflatable.
Claim 34
Dependent Claim
14 words
The assembly according to claim 21 , further comprising a plurality of inflation lumens.
Claim 35
Dependent Claim
197 words
An assembly for delivery and deployment of a stent within a vessel, comprising: a catheter having a proximal and distal ends; a stent, 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 balloon coaxially mounted on the catheter within the stent for expansion of the stent from the delivery diameter to the deployment diameter upon application of deployment pressure to the balloon, the balloon having an inner wall, an expanded state and a collapsed state; and an expandable tube component coaxially mounted on the catheter within the expandable balloon, the expandable tube having an outer wall, an expanded state and a collapsed state, wherein, when the expandable balloon and the expandable tube component are in their expanded states, there is a gap between the inner wall of the expandable balloon and the outer wall of the expandable tube component and wherein the expandable balloon is capable of being substantially collapsed when the expandable tube component is fully expanded.
Claim 36
Dependent Claim
197 words
An assembly for delivery and deployment of a stent within a vessel, comprising: a catheter having a proximal and distal ends; a stent, 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 balloon coaxially mounted on the catheter within the stent for expansion of the stent from the delivery diameter to the deployment diameter upon application of deployment pressure to the balloon, the balloon having an inner wall, an expanded state and a collapsed state; and an expandable tube component coaxially mounted on the catheter within the expandable balloon, the expandable tube having an outer wall, an expanded state and a collapsed state, wherein, when the expandable balloon and the expandable tube component are in their expanded states, there is a gap between the inner wall of the expandable balloon and the outer wall of the expandable tube component and wherein the expandable balloon is capable of being substantially collapsed when the expandable tube component is fully expanded.
Claim 37
Dependent Claim
25 words
The assembly according to claim 23 , wherein the expandable balloon may be substantially collapsed when the expandable tube component is in its expanded state.
Claim 38
Dependent Claim
23 words
The assembly according to claim 23 , wherein the gap extends along the walls of the expandable balloon and the expandable tube component.
Claim 39
Dependent Claim
33 words
The assembly according to claim 23 , the tube component designed and adapted for expansion to provide a securement pressure to the stent in the delivery diameter during delivery to the deployment site.
Claim 40
Dependent Claim
35 words
The assembly according to claim 26 , wherein the expandable tube component is sized and constructed to be fluid expandable to not more than the delivery diameter and to no more than the securement pressure.
Claim 41
Dependent Claim
19 words
The assembly according to claim 26 , wherein the tube component is comprised of at least two inflatable pouches.
Claim 42
Dependent Claim
16 words
The assembly according to claim 38 , wherein the tube component is comprised of three pouches.
Claim 43
Dependent Claim
29 words
The assembly according to claim 39 , the three pouches being a proximal pouch, a medial pouch and a distal pouch, the pouches being axially spaced on the catheter.
Claim 44
Dependent Claim
23 words
The assembly according to claim 40 , wherein the proximal and distal pouches are inflatable to a greater pressure than a medial pouch.
Claim 45
Dependent Claim
43 words
The assembly according to claim 40 , the proximal, distal and medial pouches having an expanded diameter and an unexpanded diameter, wherein the expanded diameter of the medial pouch is less than the expanded diameter of the proximal pouch or the distal pouches.
Claim 46
Dependent Claim
29 words
The assembly according to claim 42 , wherein the expanded diameter of the medial pouch is less than the expanded diameter of the proximal pouch and the distal pouch.
Claim 47
Dependent Claim
13 words
The assembly according to claim 39 , wherein the pouches are separately inflatable.
Claim 48
Dependent Claim
16 words
The assembly according to claim 38 , wherein the at least two pouches are separately inflatable.
Claim 49
Dependent Claim
34 words
The assembly according to claim 33 , 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.
Claim 50
Dependent Claim
14 words
The assembly according to claim 33 , further comprising a plurality of inflation lumens.
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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) | 2005-07-15 | 2006-01-14 | 2006-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2009-07-15 | 2010-01-14 | 2010-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2013-07-15 | 2014-01-14 | 2014-07-16 | $7700.00 | Window Closed / Lapsed |