US20050154298A1
Expired / Lapsed
US
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Methods for preventing distal embolization from the vertebrobasilar artery using flow reversal
Assignee: Zoll Circulation Inc
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Filing: 2004-12-02
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Granted: —
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Expires: 2024-12-02
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 Barbut
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:30
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: 29
Claim 1
Independent Claim
99 words
1 . A method for treating a vertebral artery lesion, the method comprising the steps of: inserting a distal end of a catheter into a brachiocephalic trunk, the catheter having a proximal end, the distal end of the catheter having a constricting member; locating the constricting member in the brachiocephalic trunk 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 occlusion and toward the subclavian artery; and advancing a therapeutic instrument into the vertebral artery to treat the lesion.
Claim 2
Dependent Claim
99 words
1 . A method for treating a vertebral artery lesion, the method comprising the steps of: inserting a distal end of a catheter into a brachiocephalic trunk, the catheter having a proximal end, the distal end of the catheter having a constricting member; locating the constricting member in the brachiocephalic trunk 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 occlusion and toward the subclavian artery; and advancing a therapeutic instrument into the vertebral artery to treat the lesion.
Claim 3
Dependent Claim
16 words
2 . The method of claim 1 , wherein the lesion is an occlusion or stenosis.
Claim 4
Dependent Claim
14 words
3 . The method of claim 1 , wherein the lesion is a dissection.
Claim 5
Dependent Claim
21 words
4 . The method of claim 1 , wherein the catheter is inserted into the subclavian artery in an antegrade direction.
Claim 6
Dependent Claim
26 words
5 . 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
26 words
6 . 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
16 words
7 . The method of claim 1 , wherein the occlusion partially occludes the vertebral artery.
Claim 9
Dependent Claim
14 words
8 . The method of claim 1 , wherein the occlusion is a stenosis.
Claim 10
Dependent Claim
14 words
9 . The method of claim 1 , wherein the occlusion is an embolus.
Claim 11
Dependent Claim
14 words
10 . The method of claim 1 , wherein the occlusion is an atheroma.
Claim 12
Dependent Claim
19 words
11 . The method of claim 1 , wherein the constricting member is expanded to occlude the subclavian artery.
Claim 13
Dependent Claim
20 words
12 . The method of claim 1 , wherein the constricting member is expanded to partially occlude the subclavian artery.
Claim 14
Dependent Claim
30 words
13 . 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
15 words
14 . The method of claim 13 , wherein the balloon is a toroidal balloon.
Claim 16
Dependent Claim
16 words
15 . The method of claim 1 , wherein the therapeutic instrument is an angioplasty catheter.
Claim 17
Dependent Claim
15 words
16 . The method of claim 1 , wherein the therapeutic instrument is a stent.
Claim 18
Dependent Claim
16 words
17 . The method of claim 1 , wherein the therapeutic instrument is an atherectomy catheter.
Claim 19
Dependent Claim
20 words
18 . The method of claim 1 , wherein the catheter has a lumen adapted to pass the therapeutic instrument.
Claim 20
Dependent Claim
5 words
19 - 23 . (canceled)
Claim 21
Dependent Claim
5 words
19 - 23 . (canceled)
Claim 22
Dependent Claim
91 words
24 . A method for flow reversal within a basilar artery, comprising the steps of: inserting a first constricting member into the left subclavian artery upstream the takeoff of the left vertebral artery; inserting a second constricting member into the right subclavian artery upstream the takeoff of the right vertebral artery; expanding the first constricting member to partially occlude the left subclavian artery; and expanding the second constricting member to partially occlude the right subclavian artery, wherein blood flow in the basilar artery is reversed and flows toward the vertebral arteries.
Claim 23
Dependent Claim
91 words
24 . A method for flow reversal within a basilar artery, comprising the steps of: inserting a first constricting member into the left subclavian artery upstream the takeoff of the left vertebral artery; inserting a second constricting member into the right subclavian artery upstream the takeoff of the right vertebral artery; expanding the first constricting member to partially occlude the left subclavian artery; and expanding the second constricting member to partially occlude the right subclavian artery, wherein blood flow in the basilar artery is reversed and flows toward the vertebral arteries.
Claim 24
Dependent Claim
5 words
25 - 36 . (canceled)
Claim 25
Dependent Claim
5 words
25 - 36 . (canceled)
Claim 26
Dependent Claim
101 words
37 . A method for treating a vertebral artery lesion, comprising the steps of: inserting a distal end of a catheter into the aorta, the catheter having a proximal end, the distal end of the catheter having a constricting member; locating the constricting member in the aortic arch downstream of the right brachiocephalic trunk and upstream of the left common carotid artery; expanding the constricting member to constrict the aorta, wherein blood flow in a left Vertebral artery is reversed to pass toward the left subclavian artery; and advancing a therapeutic instrument into a left vertebral artery to repair the lesion.
Claim 27
Dependent Claim
101 words
37 . A method for treating a vertebral artery lesion, comprising the steps of: inserting a distal end of a catheter into the aorta, the catheter having a proximal end, the distal end of the catheter having a constricting member; locating the constricting member in the aortic arch downstream of the right brachiocephalic trunk and upstream of the left common carotid artery; expanding the constricting member to constrict the aorta, wherein blood flow in a left Vertebral artery is reversed to pass toward the left subclavian artery; and advancing a therapeutic instrument into a left vertebral artery to repair the lesion.
Claim 28
Dependent Claim
5 words
38 - 45 . (canceled)
Claim 29
Dependent Claim
5 words
38 - 45 . (canceled)
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