Patent CH296151A successfully refreshed from Google Patents.
Patent US4941877A successfully refreshed from Google Patents.
US4941877A
Expired / Lapsed
US
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Balloon catheter
Assignee: Cordis Corp
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Filing: 1989-01-26
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Granted: 1990-07-17
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Expires: 2009-01-26
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
2026-10-24 19:06
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/10; A61M25/1002; A61M2025/1004; A61M2025/1043; A61M2025/1086
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
109 words
In a catheter having a catheter body, a portion of said body defining an inflatable and collapsible balloon, said balloon having a longitudinal axis and being of larger diameter than the adjacent portion of said body and defining transition zones at the respective balloon ends, the improvement comprising, in combination: at least one of the transition zones being of flute shape, in which said one of the transition zones defines a plurality of radially inwardly projecting flutes about said transition zone, said flutes extending at radial angles to the balloon axis, said flutes also defining lateral angles to the balloon axis to prevent a flat-collapsed configuration of said balloon.
Claim 2
Dependent Claim
109 words
In a catheter having a catheter body, a portion of said body defining an inflatable and collapsible balloon, said balloon having a longitudinal axis and being of larger diameter than the adjacent portion of said body and defining transition zones at the respective balloon ends, the improvement comprising, in combination: at least one of the transition zones being of flute shape, in which said one of the transition zones defines a plurality of radially inwardly projecting flutes about said transition zone, said flutes extending at radial angles to the balloon axis, said flutes also defining lateral angles to the balloon axis to prevent a flat-collapsed configuration of said balloon.
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
26 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 degrees.
Claim 5
Dependent Claim
31 words
The catheter of claim 3 in which said lateral angle is 10 to 30 degrees, said flutes also defining a radial angle to the balloon axis of 10 to 45 degrees.
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
10 words
The catheter of claim 1 which is a PTCA catheter.
Claim 9
Dependent Claim
14 words
The catheter of claim 1 in which said balloon is made of polyethylene terephthalate.
Claim 10
Dependent Claim
13 words
The catheter of claim 8 in which said polyethylene terephthalate is biaxially oriented.
Claim 11
Dependent Claim
23 words
The catheter of claim 1 in which said balloon defines a zone spaced from the ends thereof which is free of said flutes.
Claim 12
Dependent Claim
94 words
In a catheter having a catheter body, a portion of said body defining an inflatable and collapsible balloon, said balloon having a longitudinal axis and being of larger diameter than adjacent portions on said body, and defining transition zones at the respective balloon ends, the improvement comprising, in combination; said transition zones each defining flutes, said flutes being directed at a substantial radial angle to the balloon axis and at a lateral angle to the balloon axis of essentially 0 to 45 degrees, said ballooning defining a central section that is free of flutes.
Claim 13
Dependent Claim
94 words
In a catheter having a catheter body, a portion of said body defining an inflatable and collapsible balloon, said balloon having a longitudinal axis and being of larger diameter than adjacent portions on said body, and defining transition zones at the respective balloon ends, the improvement comprising, in combination; said transition zones each defining flutes, said flutes being directed at a substantial radial angle to the balloon axis and at a lateral angle to the balloon axis of essentially 0 to 45 degrees, said ballooning defining a central section that is free of flutes.
Claim 14
Dependent Claim
30 words
The catheter of claim 11 in which each transition zone defines from 3 to 8 of said flutes which are generally uniformly distributed about the circumference of each transition zone.
Claim 15
Dependent Claim
22 words
The catheter of claim 12 in which each transition zone is connected to a catheter portion of smaller diameter than said balloon.
Claim 16
Dependent Claim
14 words
The catheter of claim 13 in which said balloon is made of polyethylene terephthalate.
Claim 17
Dependent Claim
39 words
The catheter of claim 14 in which the lateral angle defined by the flutes to the balloon axis is 10 to 30 degrees, said flutes also defining a radial angle to the balloon axis of 10 to 45 degrees.
Claim 18
Dependent Claim
82 words
In a catheter having a catheter body, a portion of said body defining an inflatable and collapsible balloon, said balloon having a longitudinal axis and being of larger diameter than adjacent portions of said body and defining transition zones at the respective balloon ends, the improvement comprising, in combination: said balloon being made of biaxially oriented polyethylene terephalate, said transition zones defining a plurality of flutes generally directed at a lateral angle to the balloon axis of essentially 10 to 45 degrees.
Claim 19
Dependent Claim
82 words
In a catheter having a catheter body, a portion of said body defining an inflatable and collapsible balloon, said balloon having a longitudinal axis and being of larger diameter than adjacent portions of said body and defining transition zones at the respective balloon ends, the improvement comprising, in combination: said balloon being made of biaxially oriented polyethylene terephalate, said transition zones defining a plurality of flutes generally directed at a lateral angle to the balloon axis of essentially 10 to 45 degrees.
Claim 20
Dependent Claim
18 words
The catheter of claim 16 in which from 3 to 8 flutes are present in each transition zone.
Claim 21
Dependent Claim
20 words
The catheter of claim 17 in which said flutes are generally uniformly distributed about the circumference of each transition zone.
Claim 22
Dependent Claim
22 words
The catheter of claim 18 in which each transition zone is connected to a catheter portion of smaller diameter than said balloon.
Claim 23
Dependent Claim
22 words
The catheter of claim 19 in which the lateral angle of said flutes to the balloon axis is 10 to 30 degrees.
Claim 24
Dependent Claim
23 words
The catheter of claim 20 in which said balloon defines a zone spaced from the ends thereof which is free of said flutes.
Claim 25
Dependent Claim
10 words
The catheter of claim 16 which is a PTCA catheter.
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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) | 1993-07-16 | 1994-01-15 | 1994-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-07-16 | 1998-01-15 | 1998-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-07-16 | 2002-01-15 | 2002-07-17 | $7700.00 | Window Closed / Lapsed |