US5645560A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fixed focal balloon for interactive angioplasty and stent implantation
Assignee: Endologix LLC
•
Filing: 1996-05-02
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Granted: 1997-07-08
•
Expires: 2016-05-02
Abstract
Abstract Disclosed is a focal balloon having at least one reference zone and a focal zone. In one embodiment, the reference zone and focal zone are inflatable to a first generally cylindrical profile at a first pressure. At a second, greater pressure, the focal section expands to a second, greater diameter, while the reference zone remains substantially at the first diameter. In an alternate embodiment, the focal zone and the reference zone are inflatable to their respective predetermined diameters at the inflation pressure, in the absence of constricting lesions or anatomical structures. Both balloons may be utilized to conduct interactive angioplasty to provide real-time feedback about the morphology of the lesion, and both balloons may be utilized to implant or size intravascular stents.
Inventors
- 👤 Michael Crocker
- 👤 Lynn M. Shimada
- 👤 Robert J. Elicker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:01
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/10; A61M25/1002; A61M25/1027; A61M25/1029; A61M25/1034; A61M25/104; A61M2025/1043; A61M2025/1059; A61M2025/1072; A61M2025/1075; A61M2025/1084
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
122 words
A multiple zone balloon catheter, comprising: an elongate flexible tubular body; an inflatable balloon mounted on the tubular body; a first zone on the balloon, inflatable to a first inflated diameter at a first inflation pressure; a second zone on the balloon, inflatable to a second inflated diameter at the first inflation pressure, said second inflated diameter greater than said first inflated diameter; a third zone on the balloon, inflatable to the first inflated diameter at the first inflation pressure, wherein the second zone is disposed intermediate the first zone and the third zone, and the second zone is substantially noncompliant; wherein each of the first and second zones comprises a generally cyclindrical shape in an unconstrained expansion at the first pressure.
Claim 2
Dependent Claim
122 words
A multiple zone balloon catheter, comprising: an elongate flexible tubular body; an inflatable balloon mounted on the tubular body; a first zone on the balloon, inflatable to a first inflated diameter at a first inflation pressure; a second zone on the balloon, inflatable to a second inflated diameter at the first inflation pressure, said second inflated diameter greater than said first inflated diameter; a third zone on the balloon, inflatable to the first inflated diameter at the first inflation pressure, wherein the second zone is disposed intermediate the first zone and the third zone, and the second zone is substantially noncompliant; wherein each of the first and second zones comprises a generally cyclindrical shape in an unconstrained expansion at the first pressure.
Claim 3
Dependent Claim
30 words
A multiple zone balloon catheter as in claim 1, wherein the axial length of the second zone is within the range of from about 5 mm to about 50 mm.
Claim 4
Dependent Claim
34 words
A multiple zone balloon catheter as in claim 2, wherein the axial length of each of the first and third zones is within the range of from about 3 mm to about 25 mm.
Claim 5
Dependent Claim
37 words
A multiple zone balloon catheter as in claim 1, wherein the maximum diameter of the second zone is within the range of from about 7% to about 30% greater than the average diameter of the first zone.
Claim 6
Dependent Claim
31 words
A multiple zone balloon catheter as in claim 1, wherein the maximum diameter of the second zone is at least about 10% greater than the average diameter in the first zone.
Claim 7
Dependent Claim
30 words
A multiple zone balloon catheter as in claim 1, wherein the axial length of the second zone is within the range of from about 0.5 cm to about 5.0 cm.
Claim 8
Dependent Claim
30 words
A multiple zone balloon catheter as in claim 6, wherein the axial length of the second zone is within the range of from about 0.5 cm to about 2.0 cm.
Claim 9
Dependent Claim
27 words
A multiple zone balloon catheter as in claim 1, wherein the axial length of each of the first and third zones is at least about 3 mm.
Claim 10
Dependent Claim
57 words
A multiple zone balloon catheter as in claim 1, wherein the first and third zones each have an axial length of about 5.0 mm and an inflated diameter of about 3.0 mm at 8 atmospheres, and the second :,,one has an axial length of about 8 mm, and a diameter at 8 atmospheres of about 3.5 mm.
Claim 11
Dependent Claim
15 words
A multiple zone balloon catheter as in claim 1, wherein said balloon comprises polyethylene terephthalate.
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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) | 2000-07-07 | 2001-01-06 | 2001-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-07-07 | 2005-01-06 | 2005-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-07-07 | 2009-01-06 | 2009-07-08 | $7700.00 | Window Closed / Lapsed |