US5542926A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low profile perfusion catheter
Assignee: Endologix LLC
•
Filing: 1994-03-08
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Granted: 1996-08-06
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Expires: 2014-03-08
Abstract
Abstract Disclosed is a Low Profile Perfusion Catheter, for use in coronary angioplasty applications. Preferably, the catheter is provided with an inflatable dilatation balloon, and a perfusion lumen extending therethrough. The diameter of the perfusion lumen is enlargable from a first, reduced diameter to a second, enlarged diameter. In one embodiment, an axially movable tubular support is movable within the lumen from a proximal, insertion position to a distal perfusion position. In another embodiment, the support is radially expandable. In a further embodiment, a porus drug delivery balloon is provided.
Inventors
- 👤 Michael Crocker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:47
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/10; A61M25/104; A61M25/1011; A61M2025/1043; A61M2025/1063; A61M2025/1075; A61M2025/1097
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
175 words
A catheter comprising: an elongate, flexible tubular body; a drug permeable delivery balloon on the tubular body in fluid communication with a first inflation lumen extending through the tubular body, said delivery balloon enlargeable from a first reduced outer diameter to a second, enlarged outer diameter; a perfusion conduit extending through said delivery balloon, at least a portion of said perfusion conduit expandable from a first reduced diameter to a second enlarged diameter; at least one influent port proximal to said balloon, said influent port extending through the wall of the tubular body and communicating with said perfusion conduit; at least one effluent port distal to said balloon, said effluent port extending through the wall of the tubular body and communicating with said perfusion conduit; and a support located within said perfusion conduit for reversibly maintaining the perfusion conduit in the second, enlarged diameter; wherein said support is axially movable from a first, proximal position to a second, distal position, thereby expanding the perfusion conduit from the first, reduced diameter to the second, enlarged diameter.
Claim 2
Dependent Claim
175 words
A catheter comprising: an elongate, flexible tubular body; a drug permeable delivery balloon on the tubular body in fluid communication with a first inflation lumen extending through the tubular body, said delivery balloon enlargeable from a first reduced outer diameter to a second, enlarged outer diameter; a perfusion conduit extending through said delivery balloon, at least a portion of said perfusion conduit expandable from a first reduced diameter to a second enlarged diameter; at least one influent port proximal to said balloon, said influent port extending through the wall of the tubular body and communicating with said perfusion conduit; at least one effluent port distal to said balloon, said effluent port extending through the wall of the tubular body and communicating with said perfusion conduit; and a support located within said perfusion conduit for reversibly maintaining the perfusion conduit in the second, enlarged diameter; wherein said support is axially movable from a first, proximal position to a second, distal position, thereby expanding the perfusion conduit from the first, reduced diameter to the second, enlarged diameter.
Claim 3
Dependent Claim
19 words
A catheter as in claim 1, wherein said delivery balloon comprises a plurality of perforations for expressing said drug.
Claim 4
Dependent Claim
18 words
A catheter as in claim 2, wherein said perforations are between about 100μ and about 300μ in diameter.
Claim 5
Dependent Claim
24 words
A catheter as in claim 1, further comprising an inflation balloon in fluid communication with a second inflation lumen disposed within said delivery balloon.
Claim 6
Dependent Claim
32 words
A catheter as in claim 4, wherein said inflation balloon is secured to said delivery balloon so that deflation of said inflation balloon causes a reduction in diameter of said delivery balloon.
Claim 7
Dependent Claim
31 words
A catheter as in claim 5, further comprising a proximal seal between said inflation balloon and said delivery balloon, and a distal seal between said inflation balloon and said delivery balloon.
Claim 8
Dependent Claim
27 words
A catheter as in claim 1, further comprising an elongate flexible push wire extending through and axially movably disposed within said tubular body, for manipulating said support.
Claim 9
Dependent Claim
179 words
A catheter comprising: an elongate, flexible tubular body; an inflatable dilatation balloon on the tubular body in fluid communication with a first inflation lumen; a drug delivery balloon on the tubular body in fluid communication with a second delivery lumen, said delivery balloon disposed about the dilatation balloon; a perfusion conduit extending through said delivery balloon, at least a portion of said perfusion conduit expandable from a first reduced diameter to a second enlarged diameter; at least one influent port proximal to said dilatation balloon, said influent port extending through the wall of the tubular body and communicating with said perfusion conduit; at least one effluent port distal to said dilatation balloon, said effluent port extending through the wall of the tubular body and communicating with said perfusion conduit; and a support located within said perfusion conduit for selectively maintaining the perfusion conduit in the second, enlarged diameter; wherein said support is axially movable from a first, proximal position to a second, distal position, thereby expanding the perfusion conduit from the first, reduced diameter to the second, enlarged diameter.
Claim 10
Dependent Claim
179 words
A catheter comprising: an elongate, flexible tubular body; an inflatable dilatation balloon on the tubular body in fluid communication with a first inflation lumen; a drug delivery balloon on the tubular body in fluid communication with a second delivery lumen, said delivery balloon disposed about the dilatation balloon; a perfusion conduit extending through said delivery balloon, at least a portion of said perfusion conduit expandable from a first reduced diameter to a second enlarged diameter; at least one influent port proximal to said dilatation balloon, said influent port extending through the wall of the tubular body and communicating with said perfusion conduit; at least one effluent port distal to said dilatation balloon, said effluent port extending through the wall of the tubular body and communicating with said perfusion conduit; and a support located within said perfusion conduit for selectively maintaining the perfusion conduit in the second, enlarged diameter; wherein said support is axially movable from a first, proximal position to a second, distal position, thereby expanding the perfusion conduit from the first, reduced diameter to the second, enlarged diameter.
Claim 11
Dependent Claim
171 words
A catheter comprising: an elongate, flexible tubular body having an inflation lumen extending axially therethrough; an inflatable balloon on the tubular body in fluid communication with the inflation lumen, said balloon enlargeable from a first reduced outer diameter to a second, enlarged outer diameter; a perfusion conduit extending through said balloon, at least a portion of said perfusion conduit expandable from a first reduced diameter to a second enlarged diameter; at least one influent port proximal to said balloon, said influent port extending through the wall of the tubular body and communicating with said perfusion conduit; at least one effluent port distal to said balloon, said effluent port extending through the wall of the tubular body and communicating with said perfusion conduit; and a support located within the catheter for selectively maintaining the perfusion conduit in the second, enlarged diameter; wherein said support is axially movable from a first, proximal position to a second, distal position, thereby expanding the perfusion conduit from the first, reduced diameter to the second, enlarged diameter.
Claim 12
Dependent Claim
171 words
A catheter comprising: an elongate, flexible tubular body having an inflation lumen extending axially therethrough; an inflatable balloon on the tubular body in fluid communication with the inflation lumen, said balloon enlargeable from a first reduced outer diameter to a second, enlarged outer diameter; a perfusion conduit extending through said balloon, at least a portion of said perfusion conduit expandable from a first reduced diameter to a second enlarged diameter; at least one influent port proximal to said balloon, said influent port extending through the wall of the tubular body and communicating with said perfusion conduit; at least one effluent port distal to said balloon, said effluent port extending through the wall of the tubular body and communicating with said perfusion conduit; and a support located within the catheter for selectively maintaining the perfusion conduit in the second, enlarged diameter; wherein said support is axially movable from a first, proximal position to a second, distal position, thereby expanding the perfusion conduit from the first, reduced diameter to the second, enlarged diameter.
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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) | 1999-08-06 | 2000-02-05 | 2000-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-08-06 | 2004-02-05 | 2004-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-08-06 | 2008-02-05 | 2008-08-06 | $7700.00 | Window Closed / Lapsed |