US5720735A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bifurcated endovascular catheter
Assignee: DORROS GERALD NMI
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Filing: 1997-02-12
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Granted: 1998-02-24
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Expires: 2017-02-12
Abstract
Abstract An endovascular catheter for use in PTA, PTCA and other endovascular procedures has a bifurcated distal end with two branches. Each catheter branch may be guided into a separate vessel branch, and endovascular devices such as balloons, stents, stent grafts, or grafts may be precisely deployed in bifurcated vessels. Separate endovascular devices may be deployed in either vessel branch or the vessel trunk or an integral device may be simultaneously deployed in both branches and the trunk.
Inventors
- 👤 Gerald Dorros
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:32
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/10; A61M25/104; A61F; A61F2/00; A61F2/82; A61F2/86; A61F2/90; A61F2/95; A61F2/954; A61F2/958; A61M25/0021; A61M25/1011; A61F2/02; A61F2/04; A61F2/06; A61F2002/065; A61F2002/067; A61M2025/1043; A61M2025/1045
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
157 words
An endovascular catheter system which comprises: a shaft formed from a flexible material suitable for insertion into a blood vessel or othersimiliar conduit; a bifurcated shaft formed on a distal end of said shaft and having two branches that may be guided into separate vessels; a first lumen extending through the shaft from a proximal end thereof to its distal end and through one of said bifurcated shaft branches; a second lumen extending through the shaft from its proximal end to its distal end and through the other one of said bifurcated shaft branches; a first guide wire inserted through the first lumen for guiding said one of the bifurcated shaft branches into one vessel branch; a second guide wire inserted through the second lumen for guiding said other one of the bifurcated shaft branches into another vessel branch; an endovascular device mounted on one of said bifurcated shaft branches; and means for deploying said endovascular device.
Claim 2
Dependent Claim
157 words
An endovascular catheter system which comprises: a shaft formed from a flexible material suitable for insertion into a blood vessel or othersimiliar conduit; a bifurcated shaft formed on a distal end of said shaft and having two branches that may be guided into separate vessels; a first lumen extending through the shaft from a proximal end thereof to its distal end and through one of said bifurcated shaft branches; a second lumen extending through the shaft from its proximal end to its distal end and through the other one of said bifurcated shaft branches; a first guide wire inserted through the first lumen for guiding said one of the bifurcated shaft branches into one vessel branch; a second guide wire inserted through the second lumen for guiding said other one of the bifurcated shaft branches into another vessel branch; an endovascular device mounted on one of said bifurcated shaft branches; and means for deploying said endovascular device.
Claim 3
Dependent Claim
43 words
The endovascular catheter as recited in claim 1 in which the endovascular device is a balloon, and the means for deploying it includes a third lumen which extends through the shaft and into said bifurcated shaft branch to which the balloon is mounted.
Claim 4
Dependent Claim
47 words
The endovascular catheter as recited in claim 2 which includes a second balloon mounted to the other of said bifurcated shaft branches and a fourth lumen extends through the shaft and into the other of said bifurcated shaft branches to control the deployment of the second balloon.
Claim 5
Dependent Claim
29 words
The endovascular catheter as recited in claim 3 which includes a third balloon mounted to the shaft adjacent the bifurcated shaft branches, and means for deploying the third balloon.
Claim 6
Dependent Claim
39 words
The endovascular catheter as recited in claim 1 in which the endovascular device is a self-expanding stent, and the means for deploying it includes a sleeve that surrounds the stent and extends through said shaft to its proximal end.
Claim 7
Dependent Claim
40 words
The endovascular catheter as recited in claim 5 which includes a second stent mounted to the other of said bifurcated shaft branches and a second sleeve that surrounds the second stent and extends through the shaft to its proximal end.
Claim 8
Dependent Claim
33 words
The endovascular catheter as recited in claim 5 in which the sleeve has a longitudinal cut therein which enables the sleeve to be withdrawn from the bifurcated shaft branch to deploy the stent.
Claim 9
Dependent Claim
35 words
The endovascular catheter as recited in claim 5 in which the two sleeves each have a longitudinal cut therein which enables them to be withdrawn from the bifurcated shaft branches to deploy their respective stents.
Claim 10
Dependent Claim
16 words
The endovascular catheter as recited in claim 6 in which the two stents are fastened together.
Claim 11
Dependent Claim
29 words
The endovascular catheter as recited in claim 6 in which a third stent surrounds the shaft adjacent the two branches and one of said sleeves surrounds the third stent.
Claim 12
Dependent Claim
22 words
The endovascular catheter as recited in claim 10 in which the three stents are fastened together to form a single endovascular device.
Claim 13
Dependent Claim
27 words
The endovascular catheter as recited in claim 1 in which the endovascular device is a stent with a thermal memory that causes it to deploy by expanding.
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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) | 2001-02-23 | 2001-08-25 | 2002-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-02-23 | 2005-08-25 | 2006-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-02-23 | 2009-08-25 | 2010-02-24 | $7700.00 | Window Closed / Lapsed |