US6059809A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Protective angioplasty device
Assignee: Medicorp SA
•
Filing: 1998-05-29
•
Granted: 2000-05-09
•
Expires: 2018-05-29
Abstract
Abstract The present invention relates to a device for protected angioplasty, intended for the implantation of luminal endoprosthesis (or stent) in critical areas such as carotid or vertebral arteries, where protection of downstream-situated organs is highly desirable. The device comprises a central stent pusher part comprising a microcatheter bearing at its distal end an atraumatic tip, the atraumatic tip being prolonged by a tip balloon part comprising an inflatable occlusive balloon which may be inflated with a physiologically acceptable fluid at predetermined rates, a fluid-releasing section extending at the proximal the of the occlusive balloon, said releasing section being able to release the fluid from the balloon into an upstream section of the vessel when the pressure of the fluid reaches a predetermined level.
Inventors
- 👤 Max Amor
- 👤 Noureddine Frid
- 👤 Michel Henry
- 👤 Daniel Rufnacht
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:50
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/10; A61M25/104; A61F; A61F2/00; A61F2/95; A61F2/958; A61M2025/1043; A61M2025/105; A61M2025/1052; A61M2025/1093; A61M25/1011
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
153 words
A device for the implantation of expandable stents in a vascular vessel, allowing for temporary protection of downstream organs, comprising: a central stent pusher part surrounded by a stent-releasing part, said central stent pusher part being provided with an axial lumen bearing at its distal end an atraumatic tip, a stent loading cavity designed to contain a stent in a radially contracted state extending near the distal end of the stent pusher part, wherein said atraumatic tip is prolonged by a tip balloon part comprising an inflatable occlusive balloon hermetically connected via the axial lumen to an injector adapted to feed said balloon with a physiologically acceptable fluid at predetermined rates, and a fluid-releasing section extends at a proximal side of the occlusive balloon, said releasing section being able to release the fluid from the balloon into an upstream section of the vessel when the pressure of said fluid reaches a predetermined level.
Claim 2
Independent Claim
153 words
A device for the implantation of expandable stents in a vascular vessel, allowing for temporary protection of downstream organs, comprising: a central stent pusher part surrounded by a stent-releasing part, said central stent pusher part being provided with an axial lumen bearing at its distal end an atraumatic tip, a stent loading cavity designed to contain a stent in a radially contracted state extending near the distal end of the stent pusher part, wherein said atraumatic tip is prolonged by a tip balloon part comprising an inflatable occlusive balloon hermetically connected via the axial lumen to an injector adapted to feed said balloon with a physiologically acceptable fluid at predetermined rates, and a fluid-releasing section extends at a proximal side of the occlusive balloon, said releasing section being able to release the fluid from the balloon into an upstream section of the vessel when the pressure of said fluid reaches a predetermined level.
Claim 3
Dependent Claim
23 words
A device according to claim 1, wherein the fluid-releasing section extends at a proximal end of the proximal side of the occlusive balloon.
Claim 4
Dependent Claim
24 words
A device according to claim 1, wherein the occlusive balloon has a neck, and the fluid-releasing section extends on the neck of the balloon.
Claim 5
Dependent Claim
24 words
A device according to claim 2, wherein the occlusive balloon has a neck, and the fluid-releasing section extends on the neck of the balloon.
Claim 6
Dependent Claim
19 words
A device according to claim 2, wherein the fluid-releasing section further extends on a cane supporting the occlusive balloon.
Claim 7
Dependent Claim
19 words
A device according to claim 4, wherein the fluid-releasing section further extends on a cane supporting the occlusive balloon.
Claim 8
Dependent Claim
24 words
A device according to claim 1, comprising a self-expanding stent, which is maintained in place in the stent loading cavity by a surrounding shell.
Claim 9
Dependent Claim
17 words
A device according to claim 1, comprising a balloon-dilatable stent, the stent-releasing part comprising a dilatation balloon.
Claim 10
Independent Claim
17 words
A device according to claims 1 which comprises a dilatation balloon axially displaceable relative to the microcatheter.
Claim 11
Independent Claim
17 words
A device according to claims 7 which comprises a dilatation balloon axially displaceable relative to the microcatheter.
Claim 12
Independent Claim
17 words
A device according to claims 8 which comprises a dilatation balloon axially displaceable relative to the microcatheter.
Claim 13
Independent Claim
169 words
A device for the implantation of expandable stents in a vascular vessel, allowing for temporary protection of downstream organs, comprising: a central stent pusher part surrounded by a stent-releasing part, said central pusher part being provided with an axial lumen bearing at its distal end an atraumatic tip, a stent loading cavity designed to contain a stent in a radially contracted state extending near the distal end of the stent pusher part, and a microguide wires, wherein the atraumatic tip is prolonged by a tip balloon part comprising an inflatable occlusive balloon hermetically connected via the axial lumen to an injector adapted to feed said balloon with a physiologically acceptable fluid at predetermined rates, a fluid-releasing section extends at the proximal side of the occlusive balloon, said releasing section being able to release the fluid from the balloon into an upstream section of the vessel when the pressure of said fluid reaches a predetermined level, and the microguide wire is anchored at a distal side of the occlusive balloon.
Claim 14
Independent Claim
169 words
A device for the implantation of expandable stents in a vascular vessel, allowing for temporary protection of downstream organs, comprising: a central stent pusher part surrounded by a stent-releasing part, said central pusher part being provided with an axial lumen bearing at its distal end an atraumatic tip, a stent loading cavity designed to contain a stent in a radially contracted state extending near the distal end of the stent pusher part, and a microguide wires, wherein the atraumatic tip is prolonged by a tip balloon part comprising an inflatable occlusive balloon hermetically connected via the axial lumen to an injector adapted to feed said balloon with a physiologically acceptable fluid at predetermined rates, a fluid-releasing section extends at the proximal side of the occlusive balloon, said releasing section being able to release the fluid from the balloon into an upstream section of the vessel when the pressure of said fluid reaches a predetermined level, and the microguide wire is anchored at a distal side of the occlusive balloon.
Claim 15
Dependent Claim
23 words
A device according to claim 12, wherein the wire is terminated by a ball inserted in a pouch provided at said distal side.
Claim 16
Independent Claim
114 words
A device for performing angioplasty in a vascular vessel, allowing for temporary protection of downstream organs, comprising: a central pusher part provided with an axial lumen, bearing at its distal end a tip balloon part comprising an inflatable occlusive balloon hermetically connected via the axial lumen to an injector adapted to feed said balloon with a physiologically acceptable fluid at predetermined rates, a fluid-releasing section extending at a proximal side of the occlusive balloon, said releasing section being able to release the fluid from the balloon into an upstream section of the vessel when the pressure of said fluid reaches a predetermined level, and a dilatation balloon axially displaceable relative to the tip balloon.
Claim 17
Independent Claim
114 words
A device for performing angioplasty in a vascular vessel, allowing for temporary protection of downstream organs, comprising: a central pusher part provided with an axial lumen, bearing at its distal end a tip balloon part comprising an inflatable occlusive balloon hermetically connected via the axial lumen to an injector adapted to feed said balloon with a physiologically acceptable fluid at predetermined rates, a fluid-releasing section extending at a proximal side of the occlusive balloon, said releasing section being able to release the fluid from the balloon into an upstream section of the vessel when the pressure of said fluid reaches a predetermined level, and a dilatation balloon axially displaceable relative to the tip balloon.
Claim 18
Dependent Claim
19 words
A device according to claim 14, wherein the fluid-releasing section extends at a proximal end of the occlusive balloon.
Claim 19
Dependent Claim
24 words
A device according to claim 15, wherein the occlusive balloon has a neck, and the fluid-releasing section extends on the neck of the balloon.
Claim 20
Dependent Claim
19 words
A device according to claim 16, wherein the fluid-releasing section further extends on a cane supporting the occlusive balloon.
Claim 21
Dependent Claim
25 words
A device according to claim 14, provided, toward its proximal end, with connection means for inserting a stent-relasing part while the tip balloon is inflated.
Claim 22
Dependent Claim
46 words
A device according to claim 1, wherein said injector is adapted to feed said balloon with said physiologically acceptable fluid said predetermined rates so that said releasing section releases said fluid into said upstream section at a rate sufficient to move debris in said upstream section.
Claim 23
Dependent Claim
47 words
A device according to claim 14, wherein said injector means is adapted to feed said balloon with said physiologically acceptable fluid said predetermined rates so that said releasing section releases said fluid into said upstream section at a rate sufficient to move debris in said upstream section.
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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) | 2003-05-09 | 2003-11-08 | 2004-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-05-09 | 2007-11-08 | 2008-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-05-09 | 2011-11-08 | 2012-05-09 | $7700.00 | Window Closed / Lapsed |