Patent US5833658A successfully refreshed from Google Patents.
US5833658A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catheters for the delivery of solutions and suspensions
Assignee: MATRIGEN Inc
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Filing: 1996-04-29
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Granted: 1998-11-10
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Expires: 2016-04-29
Abstract
Abstract The present invention provides single balloon infusion catheters that provide an infusion chamber between a body lumen and the catheter balloon when the catheter balloon is inflated. High concentrations of pharmaceutical formulations and other liquids and solutions can be delivered into the infusion chamber under low pressure for local infusion therapy. Optionally, the catheters permit fluids such as blood to continue flowing through the body lumen during infusion therapy.
Inventors
- 👤 Robert J. Levy
- 👤 Steven Goldstein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:39
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/10; A61M25/104; A61M25/1011; A61M2025/0004; A61M25/0021; A61M25/0023; A61M25/0026; A61M2025/0034; A61M25/0043; A61M2025/0057; A61M2025/1043; A61M2025/105; A61M2025/1052; A61M2025/1097; A61M25/003; A61M25/0032
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
98 words
A single balloon infusion catheter comprising: an elongated flexible shaft having a distal end and a proximal end and defining an inflation lumen extending from the proximal end of the shaft towards the distal end of the shaft; a balloon mounted on the distal end of the shaft, the inflation lumen being in communication with the balloon, the balloon including means for providing an infusion chamber between the balloon and an inner wall of a patient's vasculature when the balloon is inflated; and an infusion outlet defined by said catheter in a location communicating with said infusion chamber.
Claim 2
Dependent Claim
98 words
A single balloon infusion catheter comprising: an elongated flexible shaft having a distal end and a proximal end and defining an inflation lumen extending from the proximal end of the shaft towards the distal end of the shaft; a balloon mounted on the distal end of the shaft, the inflation lumen being in communication with the balloon, the balloon including means for providing an infusion chamber between the balloon and an inner wall of a patient's vasculature when the balloon is inflated; and an infusion outlet defined by said catheter in a location communicating with said infusion chamber.
Claim 3
Dependent Claim
22 words
The catheter of claim 1, further comprising blood perfusion means for permitting blood flow past the balloon when the balloon is inflated.
Claim 4
Dependent Claim
36 words
The catheter of claim 1, wherein the shaft further defines an infusion lumen extending from the proximal end of the shaft to the distal end of the shaft, said infusion lumen communicating with the infusion outlet.
Claim 5
Dependent Claim
28 words
The catheter of claim 1, wherein the shaft further defines a guidewire lumen extending from the proximal end of the shaft to the distal end of the shaft.
Claim 6
Dependent Claim
15 words
The catheter of claim 1, wherein the balloon defines a plurality of said infusion outlets.
Claim 7
Dependent Claim
34 words
The catheter of claim 1, wherein said means for providing an infusion chamber comprises at least two annular non-inflatable spacers that contact an inner wall of the patient's vasculature when the balloon is inflated.
Claim 8
Dependent Claim
107 words
A single balloon infusion catheter comprising: an elongated flexible shaft having a distal end and a proximal end and defining an inflation lumen extending from the proximal end of the shaft towards the distal end of the shaft; a balloon mounted on the distal end of the shaft, the inflation lumen being in communication with the balloon, the balloon having at least two non-inflatable annular spacers that contact an inner wall of a patient's vasculature when the balloon is inflated, providing an infusion chamber between the balloon and the patient's vasculature; and an infusion outlet defined by said catheter in a location communicating with said infusion chamber.
Claim 9
Dependent Claim
107 words
A single balloon infusion catheter comprising: an elongated flexible shaft having a distal end and a proximal end and defining an inflation lumen extending from the proximal end of the shaft towards the distal end of the shaft; a balloon mounted on the distal end of the shaft, the inflation lumen being in communication with the balloon, the balloon having at least two non-inflatable annular spacers that contact an inner wall of a patient's vasculature when the balloon is inflated, providing an infusion chamber between the balloon and the patient's vasculature; and an infusion outlet defined by said catheter in a location communicating with said infusion chamber.
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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) | 2001-11-09 | 2002-05-11 | 2002-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-11-09 | 2006-05-11 | 2006-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-11-09 | 2010-05-11 | 2010-11-10 | $7700.00 | Window Closed / Lapsed |