US6887227B1
Expired / Lapsed
US
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Devices and methods for preventing distal embolization from the vertebrobasilar artery using flow reversal
Assignee: Zoll Circulation Inc
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Filing: 2001-02-23
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Granted: 2005-05-03
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Expires: 2021-02-23
Abstract
Abstract The invention provides a medical device having a catheter and one or more expandable constricting/occluding members. The catheter has a lumen communicating with a port at its distal end. The lumen and port are adapted for introduction of therapeutic or diagnostic devices, including an angioplasty/stent catheter and an atherectomy catheter, into a vertebral or basilar artery. The constrictor/occluder is mounted proximal to the port of the catheter. Manometers may be mounted distal to one or more constrictors for measuring pressure distal to the constrictor(s). Methods of using the devices for preventing distal embolization during vertebral and/or basilar procedures by reversing blood flow in the vertebral artery toward the subclavian artery are disclosed.
Inventors
- 👤 Denise R. Barbut
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:28
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/32; A61B17/3205; A61B17/3207; A61B17/12; A61B17/12022; A61B17/12027; A61B17/12036; A61B17/1204; A61B17/12045; A61B17/12131; A61B17/12136; A61M; A61M25/00; A61M25/10; A61M25/1011; A61B17/22; A61B17/00234; A61B2017/00238; A61B2017/00243; A61B5/00; A61B5/02; A61B5/021; A61B5/0215; A61M2025/0001; A61M2025/0002; A61M25/0021; A61M25/0023; A61M25/0026; A61M2025/0037; A61M2025/1015; A61M2025/1043; A61M2025/1052; A61M25/1002; A61M25/104
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
95 words
A method for treating a vertebral artery lesion, comprising the steps of: inserting a distal end of a catheter into a subclavian artery, the catheter having a proximal end, the distal end of the catheter having a constricting member; locating the constricting member in the subclavian artery upstream a vertebral artery having a lesion; expanding the constricting member to constrict the subclavian artery, wherein blood flow in the vertebral artery is reversed to pass over the lesion and toward the subclavian artery; and advancing a therapeutic instrument into the vertebral artery to treat the lesion.
Claim 2
Independent Claim
95 words
A method for treating a vertebral artery lesion, comprising the steps of: inserting a distal end of a catheter into a subclavian artery, the catheter having a proximal end, the distal end of the catheter having a constricting member; locating the constricting member in the subclavian artery upstream a vertebral artery having a lesion; expanding the constricting member to constrict the subclavian artery, wherein blood flow in the vertebral artery is reversed to pass over the lesion and toward the subclavian artery; and advancing a therapeutic instrument into the vertebral artery to treat the lesion.
Claim 3
Dependent Claim
14 words
The method of claim 1 , wherein the lesion is an occlusion or stenosis.
Claim 4
Dependent Claim
12 words
The method of claim 1 , wherein the lesion is a dissection.
Claim 5
Dependent Claim
23 words
The method of claim 1 , wherein the distal end of the catheter is inserted into the subclavian artery in an antegrade direction.
Claim 6
Dependent Claim
24 words
The method of claim 1 , wherein the vertebral artery is the right vertebral artery and the subclavian artery is the right subclavian artery.
Claim 7
Dependent Claim
24 words
The method of claim 1 , wherein the vertebral artery is the left vertebral artery and the subclavian artery is the left subclavian artery.
Claim 8
Dependent Claim
14 words
The method of claim 1 , wherein the occlusion partially occludes the vertebral artery.
Claim 9
Dependent Claim
12 words
The method of claim 1 , wherein the occlusion is a stenosis.
Claim 10
Dependent Claim
12 words
The method of claim 1 , wherein the occlusion is an embolus.
Claim 11
Dependent Claim
12 words
The method of claim 1 , wherein the occlusion is an atheroma.
Claim 12
Dependent Claim
17 words
The method of claim 1 , wherein the constricting member is expanded to occlude the subclavian artery.
Claim 13
Dependent Claim
18 words
The method of claim 1 , wherein the constricting member is expanded to partially occlude the subclavian artery.
Claim 14
Dependent Claim
28 words
The method of claim 1 , wherein the constricting member is a balloon that communicates with an inflation lumen that extends to the proximal end of the catheter.
Claim 15
Dependent Claim
13 words
The method of claim 13 , wherein the balloon is a toroidal balloon.
Claim 16
Dependent Claim
14 words
The method of claim 1 , wherein the therapeutic instrument is an angioplasty catheter.
Claim 17
Dependent Claim
13 words
The method of claim 1 , wherein the therapeutic instrument is a stent.
Claim 18
Dependent Claim
14 words
The method of claim 1 , wherein the therapeutic instrument is an atherectomy catheter.
Claim 19
Dependent Claim
18 words
The method of claim 1 , wherein the catheter has a lumen adapted to pass the therapeutic instrument.
Claim 20
Dependent Claim
27 words
The method of claim 1 , further comprising the step of locating a second constricting member in the subclavian artery downstream the vertebral artery having an occlusion.
Claim 21
Dependent Claim
22 words
The method of claim 19 , further comprising the step of expanding the second constricting member to partially occlude the subclavian artery.
Claim 22
Dependent Claim
21 words
The method of claim 1 , further comprising the step of infusing angiographic dye to confirm the reversal of blood flow.
Claim 23
Dependent Claim
18 words
The method of claim 1 , wherein the distal end of the catheter further comprises a radiopaque marker.
Claim 24
Dependent Claim
15 words
The method of claim 1 , wherein a manometer is mounted distal the constricting member.
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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 |