US5226889A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Double balloon catheter for stent implantation
Assignee: Individual
•
Filing: 1991-07-24
•
Granted: 1993-07-13
•
Expires: 2011-07-24
Abstract
Abstract A balloon catheter comprises a flexible catheter shaft and at least a pair of inflatable balloons carried on the shaft. Each of the balloons communicate with a separate inflation lumen extending longitudinally within the shaft. One of the pair of balloons is carried on the shaft in a position relatively proximal to the other. Typically, the relatively proximal balloon carries a stent for implantation into a patient.
Inventors
- 👤 Imad Sheiban
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:36
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/10; A61M25/1011; A61F; A61F2/00; A61F2/95; A61F2/958; A61M2025/1013
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
87 words
A balloon catheter which comprises a flexible catheter shaft and at least a pair of inflatable balloons having ends and carried on said catheter shaft, each of said balloons communicating with a separate inflation lumen extending longitudinally within said shaft, one of said pair of balloons being carried on said shaft at a position that is relatively proximal to the other of said pair of balloons, said proximal balloon carrying a stent for implantation into a patient, said stent being spaced from the other of said balloons.
Claim 2
Dependent Claim
87 words
A balloon catheter which comprises a flexible catheter shaft and at least a pair of inflatable balloons having ends and carried on said catheter shaft, each of said balloons communicating with a separate inflation lumen extending longitudinally within said shaft, one of said pair of balloons being carried on said shaft at a position that is relatively proximal to the other of said pair of balloons, said proximal balloon carrying a stent for implantation into a patient, said stent being spaced from the other of said balloons.
Claim 3
Dependent Claim
24 words
The catheter of claim 1 in which said relatively proximal balloon is of greater inflated diameter than the other of said pair of balloons.
Claim 4
Dependent Claim
25 words
The catheter of claim 1 in which said relatively proximal and other of said balloons are positioned on the catheter in end-to-end, essentially touching relationship.
Claim 5
Dependent Claim
18 words
The catheter of claim 1 in which radiopaque marker means are carried adjacent the ends of said balloons.
Claim 6
Dependent Claim
104 words
A balloon catheter which comprises a flexible catheter shaft and at least a pair of inflatable balloons carried on said catheter shaft, each of said balloons communicating with a separate inflation lumen extending longitudinally within said shaft, one of said pair of balloons being carried on said shaft at a position that is relatively proximal to the other of said pair of balloons, said relatively proximal balloon being of greater inflated diameter than the other of said balloons, said relatively proximal balloon carrying a stent for implantation into a patient, said pair of balloons being positioned on the catheter in end-to-end, essentially touching relationship.
Claim 7
Dependent Claim
104 words
A balloon catheter which comprises a flexible catheter shaft and at least a pair of inflatable balloons carried on said catheter shaft, each of said balloons communicating with a separate inflation lumen extending longitudinally within said shaft, one of said pair of balloons being carried on said shaft at a position that is relatively proximal to the other of said pair of balloons, said relatively proximal balloon being of greater inflated diameter than the other of said balloons, said relatively proximal balloon carrying a stent for implantation into a patient, said pair of balloons being positioned on the catheter in end-to-end, essentially touching relationship.
Claim 8
Dependent Claim
18 words
The catheter of claim 5 in which radiopaque marker means are carried adjacent the ends of said balloons.
Claim 9
Independent Claim
159 words
The method of implanting a stent into an arterial stenosis site of a patient which comprises, inserting into the arterial system of a patient a flexible catheter having a shaft which carries at least a pair of inflatable balloons, each of said balloons communicating with a separate inflation lumen extending longitudinally within said shaft, one of said pair of balloons being carried on the shaft at a position that is relatively proximal to the other of said pair of balloons, the relatively proximal balloon carrying a stent for implantation into a patient; advancing said catheter to cause the other of said balloons to enter the area of said stenosis; inflating the other of said balloons to expand said stenosis and then deflating the other of said balloons; advancing said catheter to place the relatively proximal balloon and stent into the stenosis area; and inflating said relatively proximal balloon to cause said stent to expand into engagement with said stenosis.
Claim 10
Independent Claim
159 words
The method of implanting a stent into an arterial stenosis site of a patient which comprises, inserting into the arterial system of a patient a flexible catheter having a shaft which carries at least a pair of inflatable balloons, each of said balloons communicating with a separate inflation lumen extending longitudinally within said shaft, one of said pair of balloons being carried on the shaft at a position that is relatively proximal to the other of said pair of balloons, the relatively proximal balloon carrying a stent for implantation into a patient; advancing said catheter to cause the other of said balloons to enter the area of said stenosis; inflating the other of said balloons to expand said stenosis and then deflating the other of said balloons; advancing said catheter to place the relatively proximal balloon and stent into the stenosis area; and inflating said relatively proximal balloon to cause said stent to expand into engagement with said stenosis.
Claim 11
Dependent Claim
22 words
The method of claim 7 in which said relatively proximal balloon is of greater inflated diameter than the other of said balloons.
Claim 12
Dependent Claim
25 words
The method of claim 8 in which said relatively proximal and other of said balloons are positioned on the catheter in end-to-end, essentially touching relationship.
Claim 13
Dependent Claim
26 words
The method of claim 9 in which radiopaque marker means are present, and said catheter is manipulated through the method steps while observed through a fluoroscope.
Claim 14
Dependent Claim
17 words
The catheter of claim 5 in which said stent is spaced from the other of said balloons.
References Cited (Backward Citations)
US4527549A
Cited
US4728328A
Cited
US4577631A
Cited
US4733665A
Cited
US4733665B1
Cited
US4733665C2
Cited
US4744366A
Cited
US4723549A
Cited
US5002532A
Cited
US4795458A
Cited
US5078726A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-07-12 | 1997-01-11 | 1997-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-07-12 | 2001-01-11 | 2001-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-07-12 | 2005-01-11 | 2005-07-13 | $7700.00 | Window Closed / Lapsed |