US6136025A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Endoscopic arterial pumps for treatment of cardiac insufficiency and venous pumps for right-sided cardiac support
Assignee: Individual
•
Filing: 1999-07-27
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Granted: 2000-10-24
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Expires: 2019-07-27
Abstract
Abstract Methods for using blood pumps to treat heart failure are disclosed. The pump is mounted on an interior of a stent, does not occupy the entire lumen, and the stent is releasably mounted on a distal end of a catheter. The distal end of the catheter is inserted into a peripheral artery and advanced to position the stent at a region of interest within the descending aorta, the ascending aorta, or the left ventricle. The stent and the pump are released from the catheter, and the pump is activated to increase blood flow downstream of the pump. The pump can also be positioned in the vena cava or used to treat right-sided heart failure following the insertion of an LVAD, or to improve venous return in patients with varicose veins. Non-stent pumps are described for insertion between the pulmonary vein and aorta, and between the vena cava and pulmonary artery designed for use during cardiac surgery.
Inventors
- 👤 Denise R. Barbut
- 👤 Russell H. Patterson
- 👤 Mark-Hein Heinemann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:46
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/82; A61F2/86; A61F2/90; A61M; A61M60/00; A61M60/80; A61M60/855; A61M60/861; A61M60/865; A61M60/867; A61M2205/00; A61M2205/32; A61M60/10; A61M60/122; A61M60/126; A61M60/148
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
95 words
A method for treating cardiac insufficiency, comprising the steps of: providing a catheter having an expandable stent releasably mounted on a distal end of the catheter, the stent having a pump mounted in an interior of the stent; inserting the distal end of the catheter into a peripheral artery; advancing the catheter to position the stent at a region of interest within the descending aorta downstream of the left subclavian artery; expanding the stent; releasing the stent and pump from the catheter; and activating the pump to increase arterial blood flow downstream of the pump.
Claim 2
Independent Claim
95 words
A method for treating cardiac insufficiency, comprising the steps of: providing a catheter having an expandable stent releasably mounted on a distal end of the catheter, the stent having a pump mounted in an interior of the stent; inserting the distal end of the catheter into a peripheral artery; advancing the catheter to position the stent at a region of interest within the descending aorta downstream of the left subclavian artery; expanding the stent; releasing the stent and pump from the catheter; and activating the pump to increase arterial blood flow downstream of the pump.
Claim 3
Dependent Claim
12 words
The method of claim 1, wherein the stent is a self-expanding stent.
Claim 4
Dependent Claim
13 words
The method of claim 2, wherein the stent comprises a shape memory alloy.
Claim 5
Dependent Claim
10 words
The method of claim 3, wherein the alloy is nitinol.
Claim 6
Dependent Claim
26 words
The method of claim 1, wherein the catheter further comprises an angioplasty balloon, and wherein the stent is expanded by the step of inflating the balloon.
Claim 7
Dependent Claim
12 words
The method of claim 1, wherein the pump is a helical pump.
Claim 8
Dependent Claim
19 words
The method of claim 1, wherein the pump occupies only a fraction of an interior lumen of the stent.
Claim 9
Dependent Claim
13 words
The method of claim 1, wherein the operation of the pump is continuous.
Claim 10
Dependent Claim
11 words
The method of claim 1, wherein the pump is powered telemetrically.
Claim 11
Dependent Claim
13 words
The method of claim 1, wherein the peripheral artery is the femoral artery.
Claim 12
Dependent Claim
14 words
The method of claim 1, wherein the peripheral artery is the left subclavian artery.
Claim 13
Dependent Claim
21 words
The method of claim 1, wherein the step of expanding the stent is performed before the step of releasing the stent.
Claim 14
Independent Claim
88 words
A method for treating cardiac insufficiency, comprising the steps of: providing a catheter having an expandable stent releasably mounted on a distal end of the catheter, the stent having a pump mounted in an interior of the stent; inserting the distal end of the catheter into a peripheral artery; advancing the catheter to position the stent at a region of interest within an artery; expanding the stent; releasing the stent and pump from the catheter; and activating the pump to increase arterial blood flow downstream of the pump.
Claim 15
Independent Claim
88 words
A method for treating cardiac insufficiency, comprising the steps of: providing a catheter having an expandable stent releasably mounted on a distal end of the catheter, the stent having a pump mounted in an interior of the stent; inserting the distal end of the catheter into a peripheral artery; advancing the catheter to position the stent at a region of interest within an artery; expanding the stent; releasing the stent and pump from the catheter; and activating the pump to increase arterial blood flow downstream of the pump.
Claim 16
Dependent Claim
12 words
The method of claim 13, wherein the artery is a carotid artery.
Claim 17
Dependent Claim
14 words
The method of claim 14, wherein the carotid artery is the common carotid artery.
Claim 18
Dependent Claim
14 words
The method of claim 14, wherein the carotid artery is the left subclavian artery.
Claim 19
Independent Claim
89 words
A method for treatment of varicose veins, comprising the steps of: providing a catheter having an expandable stent releasably mounted on a distal end of the catheter, the stent having a pump mounted in an interior of the stent; inserting the distal end of the catheter into a peripheral vein; advancing the catheter to position the stent at a region of interest within a vein; expanding the stent; releasing the stent and pump from the catheter; and activating the pump to increase venous blood flow to the right atrium.
Claim 20
Independent Claim
89 words
A method for treatment of varicose veins, comprising the steps of: providing a catheter having an expandable stent releasably mounted on a distal end of the catheter, the stent having a pump mounted in an interior of the stent; inserting the distal end of the catheter into a peripheral vein; advancing the catheter to position the stent at a region of interest within a vein; expanding the stent; releasing the stent and pump from the catheter; and activating the pump to increase venous blood flow to the right atrium.
Claim 21
Dependent Claim
13 words
The method of claim 17, wherein the peripheral vein is the iliac vein.
Claim 22
Dependent Claim
13 words
The method of claim 17, wherein the peripheral vein is the femoral vein.
Claim 23
Dependent Claim
14 words
The method of claim 17, wherein the peripheral vein is the inferior vena cava.
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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) | 2003-10-24 | 2004-04-24 | 2004-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-10-24 | 2008-04-24 | 2008-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-10-24 | 2012-04-24 | 2012-10-24 | $7700.00 | Window Closed / Lapsed |