Patent US2989052A successfully refreshed from Google Patents.
Patent US6595980B1 successfully refreshed from Google Patents.
US6595980B1
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Devices and methods for preventing distal embolization using flow reversal by occlusion of the brachiocephalic artery
Assignee: Zoll Circulation Inc
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Filing: 2001-02-23
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Granted: 2003-07-22
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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 is adapted for use with therapeutic or diagnostic devices, including an angioplasty/stent catheter and an atherectomy catheter. The constrictor/occluder is mounted at the distal end 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 extra cranial or intracranial carotid procedures or vertebral artery procedures by reversing blood flow in an internal carotid artery, an external carotid artery, and/or a common carotid 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 22:36
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/12; A61B17/12022; A61B17/12027; A61B17/12031; A61B17/12036; A61B17/12099; A61B17/12109; A61B17/12131; A61B17/12136; A61M; A61M25/00; A61M25/10; A61M25/1011; A61B17/00234; A61B2017/00238; A61B2017/00243; A61B17/22; A61B2017/22051; A61B2017/22065; A61B2017/22067; A61M2025/1015; A61M2025/1043; A61M2025/1052; A61M25/104
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
99 words
A method for treating a carotid artery occlusion, comprising the steps of: inserting a distal end of a catheter into the right brachiocephalic trunk, the catheter having a proximal end, the distal end of the catheter having a constricting member; locating the constricting member in the right brachiocephalic trunk upstream of a carotid artery having an occlusion; expanding the constricting member to constrict the right brachiocephalic trunk, wherein blood flow in the carotid artery is reversed to pass over the occlusion and toward the brachiocephalic trunk; and advancing a therapeutic instrument into the carotid artery to reduce the occlusion.
Claim 2
Independent Claim
99 words
A method for treating a carotid artery occlusion, comprising the steps of: inserting a distal end of a catheter into the right brachiocephalic trunk, the catheter having a proximal end, the distal end of the catheter having a constricting member; locating the constricting member in the right brachiocephalic trunk upstream of a carotid artery having an occlusion; expanding the constricting member to constrict the right brachiocephalic trunk, wherein blood flow in the carotid artery is reversed to pass over the occlusion and toward the brachiocephalic trunk; and advancing a therapeutic instrument into the carotid artery to reduce the occlusion.
Claim 3
Dependent Claim
18 words
The method of claim 1 , Wherein the carotid artery having the occlusion is the internal carotid artery.
Claim 4
Dependent Claim
18 words
The method of claim 1 , wherein the carotid artery having the occlusion is the common carotid artery.
Claim 5
Dependent Claim
18 words
The method of claim 1 , wherein the carotid artery having the occlusion is the external carotid artery.
Claim 6
Dependent Claim
28 words
The method of claim 1 , further comprising the step of locating an occluding member in the right vertebral artery to block embolization to the right vertebral artery.
Claim 7
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 8
Dependent Claim
14 words
The method of claim 1 , wherein the occlusion partially occludes the brachiocephalic 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 brachiocephalic artery.
Claim 13
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 14
Dependent Claim
13 words
The method of claim 12 , wherein the balloon is a toroidal balloon.
Claim 15
Dependent Claim
14 words
The method of claim 1 , wherein the therapeutic instrument is an angioplasty catheter.
Claim 16
Dependent Claim
13 words
The method of claim 1 , wherein the therapeutic instrument is a stent.
Claim 17
Dependent Claim
14 words
The method of claim 1 , wherein the therapeutic instrument is an atherectomy catheter.
Claim 18
Dependent Claim
18 words
The method of claim 1 , wherein the catheter has a lumen adapted to pass the therapeutic instrument.
Claim 19
Dependent Claim
26 words
The method of claim 17 , wherein the catheter has a side opening that communicates with the lumen and is adapted to pass the therapeutic instrument.
Claim 20
Dependent Claim
29 words
The method of claim 1 , further comprising the step of locating a second constricting member in the right subclavian artery downstream the takeoff of the right vertebral artery.
Claim 21
Dependent Claim
39 words
The method of claim 1 , further comprising the step of locating a second constricting member in the right subclavian artery downstream the takeoff of the right common carotid artery and upstream the takeoff of the right vertebral artery.
Claim 22
Dependent Claim
22 words
The method of claim 20 , further comprising the step of expanding the second constricting member to partially occlude the subclavian artery.
Claim 23
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 24
Dependent Claim
18 words
The method of claim 1 , wherein the distal end of the catheter further comprises a radiopaque marker.
Claim 25
Dependent Claim
15 words
The method of claim 1 , wherein a manometer is mounted distal the constricting member.
References Cited (Backward Citations)
US4921478A
Cited
US5423742A
Cited
US5769812A
Cited
US5833645A
Cited
US5765568A
Cited
US5938645A
Cited
US5833650A
Cited
US6165199A
Cited
US6161547A
Cited
US6383172B1
Cited
US6146370A
Cited
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 2006-07-21 | 2007-01-20 | 2007-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2010-07-21 | 2011-01-20 | 2011-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2014-07-21 | 2015-01-20 | 2015-07-22 | $7700.00 | Window Closed / Lapsed |