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US6887220B2
Expired / Lapsed
US
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Catheter having a compliant member configured to regulate aspiration rates
Assignee: W.L. Gore and Associates Inc
•
Filing: 2002-09-12
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Granted: 2005-05-03
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Expires: 2022-09-12
Abstract
Abstract The present invention is directed to a catheter that is configured to self-regulate aspiration rates through a working lumen of the catheter. The catheter comprises a compliant member in communication with the working lumen that is configured to transition from an open position to a closed position when a predetermined aspiration threshold is exceeded. In the closed position, the compliant member is temporarily drawn inward to at least partially occlude flow through the working lumen, thereby mitigating the rate of aspiration imposed upon a patient's vessel. When the rate of aspiration is reduced below the threshold level, the compliant member returns to the open position.
Inventors
- 👤 Michael Hogendijk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:04
CPC Classifications
A; A61; A61M; A61M25/00; A61M5/00; A61M5/14; A61M5/168; A61M5/16804; A61M5/16813; A61M25/0021; A61M25/0023; A61M2025/0025; A61M25/0067; A61M25/0074; A61M25/0075
Claims Analysis
Total Claims: 33
Claim 1
Independent Claim
129 words
Apparatus suitable for regulating the rate of aspiration provided through a working lumen of a catheter, the apparatus comprising: a catheter having proximal and distal ends and a working lumen extending therebetween; and a compliant member coupled to the catheter in communication with the working lumen, the compliant member configured to transition from an open position when a level of aspiration through the working lumen is below a threshold value, and a closed position wherein the compliant member at least partially occludes flow through the working lumen when the level of aspiration exceeds the threshold value, wherein the compliant member is disposed within a compliant section comprising the compliant member and a polymer cover, the catheter further comprising at least one relatively rigid section disposed adjacent the compliant section.
Claim 2
Dependent Claim
129 words
Apparatus suitable for regulating the rate of aspiration provided through a working lumen of a catheter, the apparatus comprising: a catheter having proximal and distal ends and a working lumen extending therebetween; and a compliant member coupled to the catheter in communication with the working lumen, the compliant member configured to transition from an open position when a level of aspiration through the working lumen is below a threshold value, and a closed position wherein the compliant member at least partially occludes flow through the working lumen when the level of aspiration exceeds the threshold value, wherein the compliant member is disposed within a compliant section comprising the compliant member and a polymer cover, the catheter further comprising at least one relatively rigid section disposed adjacent the compliant section.
Claim 3
Dependent Claim
21 words
The apparatus of claim 1 wherein the relatively rigid section comprises an inner layer, a wire braid, and the polymer cover.
Claim 4
Dependent Claim
24 words
The apparatus of claim 2 wherein an inner surface of the compliant member is substantially flush with an inner surface of the inner layer.
Claim 5
Dependent Claim
18 words
The apparatus of claim 1 wherein the compliant member is disposed within a proximal region of the catheter.
Claim 6
Dependent Claim
18 words
The apparatus of claim 1 wherein the compliant member is disposed at the distal end of the catheter.
Claim 7
Dependent Claim
46 words
The apparatus of claim 1 further comprising an inflation lumen disposed within the polymer cover, wherein the inflation lumen is coupled between an occlusive element disposed at the distal end of the catheter and an inflation port in communication with the proximal end of the catheter.
Claim 8
Dependent Claim
24 words
The apparatus of claim 1 further comprising a reinforcement sheath having proximal and distal ends, the reinforcement sheath disposed to enclose the compliant section.
Claim 9
Dependent Claim
42 words
The apparatus of claim 7 wherein the proximal end of the reinforcement sheath is affixed to the relatively rigid section of the catheter and the distal end of the reinforcement sheath is affixed to a second relatively rigid section of the catheter.
Claim 10
Dependent Claim
17 words
The apparatus of claim 8 wherein the proximal and distal ends of the reinforcement sheath are tapered.
Claim 11
Dependent Claim
21 words
The apparatus of claim 1 wherein the compliant section comprises a compliant sheath affixed to an inner layer of the catheter.
Claim 12
Dependent Claim
23 words
The apparatus of claim 1 wherein the compliant member is provided with a predetermined rigidity that is proportional to a predetermined aspiration threshold.
Claim 13
Dependent Claim
125 words
Apparatus suitable for regulating the rate of aspiration provided through a working lumen of a catheter, the apparatus comprising: a catheter having proximal and distal ends and a working lumen extending therebetween; and a compliant member coupled to the catheter in communication with the working lumen, the compliant member configured to transition from an open position when a level of aspiration through the working lumen is below a threshold value, and a closed position wherein the compliant member at least partially occludes flow through the working lumen when the level of aspiration exceeds the threshold value, wherein the compliant member is disposed within a compliant section located at the distal end of the catheter, the compliant section comprising the compliant member and a polymer cover.
Claim 14
Dependent Claim
125 words
Apparatus suitable for regulating the rate of aspiration provided through a working lumen of a catheter, the apparatus comprising: a catheter having proximal and distal ends and a working lumen extending therebetween; and a compliant member coupled to the catheter in communication with the working lumen, the compliant member configured to transition from an open position when a level of aspiration through the working lumen is below a threshold value, and a closed position wherein the compliant member at least partially occludes flow through the working lumen when the level of aspiration exceeds the threshold value, wherein the compliant member is disposed within a compliant section located at the distal end of the catheter, the compliant section comprising the compliant member and a polymer cover.
Claim 15
Dependent Claim
21 words
The apparatus of claim 12 wherein the catheter further comprises at least one relatively rigid section disposed adjacent the compliant section.
Claim 16
Dependent Claim
21 words
The apparatus of claim 13 wherein the relatively rigid section comprises an inner layer, a wire braid, and the polymer cover.
Claim 17
Dependent Claim
24 words
The apparatus of claim 14 wherein an inner surface of the compliant member is substantially flush with an inner surface of the inner layer.
Claim 18
Dependent Claim
46 words
The apparatus of claim 12 further comprising an inflation lumen disposed within the polymer cover, wherein the inflation lumen is coupled between an occlusive element disposed at the distal end of the catheter and an inflation port in communication with the proximal end of the catheter.
Claim 19
Dependent Claim
21 words
The apparatus of claim 12 wherein the compliant section comprises a compliant sheath affixed to an inner layer of the catheter.
Claim 20
Dependent Claim
23 words
The apparatus of claim 12 wherein the compliant member is provided with a predetermined rigidity that is proportional to a predetermined aspiration threshold.
Claim 21
Dependent Claim
112 words
Apparatus suitable for regulating the rate of aspiration provided through a working lumen of a catheter, the apparatus comprising: a catheter having proximal and distal ends and a working lumen extending therebetween; and a compliant member coupled to the catheter in communication with the working lumen, the compliant member configured to transition from an open position when a level of aspiration through the working lumen is below a threshold value, and a closed position wherein the compliant member at least partially occludes flow through the working lumen when the level of aspiration exceeds the threshold value, wherein the compliant member comprises a compliant sheath affixed to an inner layer of the catheter.
Claim 22
Dependent Claim
112 words
Apparatus suitable for regulating the rate of aspiration provided through a working lumen of a catheter, the apparatus comprising: a catheter having proximal and distal ends and a working lumen extending therebetween; and a compliant member coupled to the catheter in communication with the working lumen, the compliant member configured to transition from an open position when a level of aspiration through the working lumen is below a threshold value, and a closed position wherein the compliant member at least partially occludes flow through the working lumen when the level of aspiration exceeds the threshold value, wherein the compliant member comprises a compliant sheath affixed to an inner layer of the catheter.
Claim 23
Dependent Claim
26 words
The apparatus of claim 19 wherein the compliant member is disposed within a compliant section, the compliant section comprising the compliant sheath and a polymer cover.
Claim 24
Dependent Claim
25 words
The apparatus of claim 20 wherein the catheter further comprises at least one relatively rigid section interposed between the compliant sheath and the polymer cover.
Claim 25
Dependent Claim
14 words
The apparatus of claim 21 wherein the relatively rigid section comprises a wire braid.
Claim 26
Dependent Claim
24 words
The apparatus of claim 22 wherein an inner surface of the compliant member is substantially flush with an inner surface of the inner layer.
Claim 27
Dependent Claim
18 words
The apparatus of claim 19 wherein the compliant member is disposed within a proximal region of the catheter.
Claim 28
Dependent Claim
18 words
The apparatus of claim 19 wherein the compliant member is disposed at the distal end of the catheter.
Claim 29
Dependent Claim
46 words
The apparatus of claim 20 further comprising an inflation lumen disposed within the polymer cover, wherein the inflation lumen is coupled between an occlusive element disposed at the distal end of the catheter and an inflation port in communication with the proximal end of the catheter.
Claim 30
Dependent Claim
24 words
The apparatus of claim 20 further comprising a reinforcement sheath having proximal and distal ends, the reinforcement sheath disposed to enclose the compliant section.
Claim 31
Dependent Claim
43 words
The apparatus of claim 27 wherein the proximal end of the reinforcement sheath is affixed to a first relatively rigid section of the catheter and the distal end of the reinforcement sheath is affixed to a second relatively rigid section of the catheter.
Claim 32
Dependent Claim
17 words
The apparatus of claim 28 wherein the proximal and distal ends of the reinforcement sheath are tapered.
Claim 33
Dependent Claim
23 words
The apparatus of claim 19 wherein the compliant member is provided with a predetermined rigidity that is proportional to a predetermined aspiration threshold.
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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) | 2008-05-02 | 2008-11-01 | 2009-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2012-05-02 | 2012-11-01 | 2013-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2016-05-02 | 2016-11-01 | 2017-05-03 | $7700.00 | Window Closed / Lapsed |