US5041125A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Balloon catheter
Assignee: Cordis Corp
•
Filing: 1990-03-26
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Granted: 1991-08-20
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Expires: 2010-03-26
Abstract
Abstract A balloon catheter in which its inflatable and collapsible balloon is of larger diameter than adjacent portions of the catheter body. The balloon defines transition zones at the respective ends which are of fluted shape. Thus, the balloon can assume a collapsed position in which the collapsed transition zones collapse in a substantially star-shaped cross section rather than in a flat-collapsed configuration. Central portions of the catheter follow suit on collapse of the balloon, to avoid the undesired "winging" phenomenon in balloon catheters, particularly PTCA catheters.
Inventors
- 👤 Fausto Montano, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:51
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/10; A61M25/1002; A61M2025/1004; A61M2025/1043; A61M2025/1086
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
110 words
In a catheter having a catheter body having a longitudinal axis, a portion of said body defining an inflatable and collapsible balloon having an axis, said balloon being of larger diameter than adjacent portions of said body and defining transition zones at the respective balloon ends, the improvement comprising, in combination: each of said transition zones being of fluted shape in which said transition zones define radially inwardly projecting flutes distributed in said transition zones about the longitudinal axis of said catheter body, said balloon defining a zone spaced from the ends thereof which is free of said flutes, whereby, upon collapsing, said balloon does not assume a flat-collapsed configuration.
Claim 2
Dependent Claim
110 words
In a catheter having a catheter body having a longitudinal axis, a portion of said body defining an inflatable and collapsible balloon having an axis, said balloon being of larger diameter than adjacent portions of said body and defining transition zones at the respective balloon ends, the improvement comprising, in combination: each of said transition zones being of fluted shape in which said transition zones define radially inwardly projecting flutes distributed in said transition zones about the longitudinal axis of said catheter body, said balloon defining a zone spaced from the ends thereof which is free of said flutes, whereby, upon collapsing, said balloon does not assume a flat-collapsed configuration.
Claim 3
Dependent Claim
22 words
The catheter of claim 1 in which each transition zone is connected to a catheter portion of smaller diameter than said balloon.
Claim 4
Dependent Claim
25 words
The catheter of claim 1 in which said flutes are generally directed at a lateral angle to the balloon axis of essentially 10° to 45°.
Claim 5
Dependent Claim
29 words
The catheter of claim 3 in which said lateral angle is 10° to 30°, said flutes also defining a radial angle to the balloon axis of 10° to 45°.
Claim 6
Dependent Claim
18 words
The catheter of claim 1 in which from 3 to 8 flutes are present in each transition zone.
Claim 7
Dependent Claim
20 words
The catheter of claim 5 in which said flutes are generally uniformly distributed about the circumference of each transition zone.
Claim 8
Dependent Claim
16 words
The catheter of claim 1 in which said balloon is made of biaxially oriented polyethylene terephthalate.
Claim 9
Dependent Claim
140 words
In a catheter having a catheter body having a longitudinal axis, a portion of said body defining an inflatable and collapsible balloon having an axis, said balloon being of larger diameter than adjacent portions of said body and defining transition zones at the respective balloon ends, the improvement comprising, in combination: each of said transition zones being of fluted shape in which said transition zones define radially inwardly projecting flutes distributed in said transition zones about the longitudinal axis of said catheter body, said flutes being generally directed at a lateral angle to the balloon axis of essentially 10° to 45°, there being from 3 to 8 flutes present in each transition zone, said balloon defining a zone spaced from the ends thereof which is free of said lutes, whereby, upon collapsing, said balloon does not assume a flat-collapsed configuration.
Claim 10
Dependent Claim
140 words
In a catheter having a catheter body having a longitudinal axis, a portion of said body defining an inflatable and collapsible balloon having an axis, said balloon being of larger diameter than adjacent portions of said body and defining transition zones at the respective balloon ends, the improvement comprising, in combination: each of said transition zones being of fluted shape in which said transition zones define radially inwardly projecting flutes distributed in said transition zones about the longitudinal axis of said catheter body, said flutes being generally directed at a lateral angle to the balloon axis of essentially 10° to 45°, there being from 3 to 8 flutes present in each transition zone, said balloon defining a zone spaced from the ends thereof which is free of said lutes, whereby, upon collapsing, said balloon does not assume a flat-collapsed configuration.
Claim 11
Dependent Claim
20 words
The catheter of claim 8 in which said flutes are generally uniformly distributed about the circumference of each transition zone.
Claim 12
Dependent Claim
14 words
The catheter of claim 9 in which said lateral angle is 10° to 30°.
Claim 13
Dependent Claim
22 words
The catheter of claim 10 in which said flutes also define a radial angle to the balloon axis of 10° to 45°.
Claim 14
Dependent Claim
16 words
The catheter of claim 11 in which said balloon is made of biaxially oriented 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) | 1994-08-19 | 1995-02-18 | 1995-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-08-19 | 1999-02-18 | 1999-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-08-19 | 2003-02-18 | 2003-08-20 | $7700.00 | Window Closed / Lapsed |