Low profile sheathless embolic protection system
First Claim
1. A system for capturing embolic material which may be released into a blood vessel during a therapeutic interventional procedure at the site of a stenosis, comprising:
- a filter, adapted to be deployed distal to the interventional procedure site, and to pass blood therethrough and capture embolic material which may be released into the blood in the blood vessel during the interventional procedure;
a support device, adapted to support the filter, to retain a low profile position responsive to positive retention thereof in the low profile position so as to enable the filter to be inserted into and through the blood vessel, and to cross the stenosis therein, to a position distal to the interventional procedure site, without a sheath extending about the filter and the support device, and adapted to deform for expansion thereof into an open position, to enable the filter to capture embolic material, responsive to positive deforming for expansion thereof into the open position and retention therein; and
a mechanism for enabling the support device to be positively retained in the low profile position thereof and to be positively deformed for expansion thereof into the open position and retention therein, to enable the filter to be inserted into and through the blood vessel and to cross the stenosis therein, and to expand to capture embolic material.
1 Assignment
0 Petitions
Accused Products
Abstract
A system used in a blood vessel when an interventional procedure is being performed in a stenosed or occluded region, which is capable of enabling a support device and filter supported thereon, to be inserted into the blood vessel and to cross the stenosis therein in a low profile without a sheath extending thereabout. The filter is adapted to filter the blood in the blood vessel. The system is further capable of enabling the support device and filter to be positioned distal to the interventional procedure site, and to be activated to expand at the distal location so as to enable the filter to capture any embolic material that may be created and released into the bloodstream during the interventional procedure. The system is also capable of enabling the support device and filter to be activated to contract to a return profile for enabling the filter to retain the embolic material captured therein and the removal of the support device and filter from the blood vessel. The system includes a filter, adapted to be deployed distal to the interventional procedure site, and to pass blood therethrough and capture embolic material which may be released into the blood in the blood vessel during the interventional procedure. A support device is adapted to support the filter, and to retain a low profile so as to enable the filter to be inserted into and cross the stenosis in the blood vessel, to a position distal to the interventional procedure site, without a sheath extending about the filter and the support device. The support device is further adapted to deform for expansion thereof into open position to enable the filter to capture embolic material, and to enable the collapsing thereof to retain the embolic material captured in the filter, and to enable removal of the support device and the filter. The system also includes a mechanism, connected to the support device, adapted to be activated so as to enable the support device to deform for expansion thereof.
257 Citations
25 Claims
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1. A system for capturing embolic material which may be released into a blood vessel during a therapeutic interventional procedure at the site of a stenosis, comprising:
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a filter, adapted to be deployed distal to the interventional procedure site, and to pass blood therethrough and capture embolic material which may be released into the blood in the blood vessel during the interventional procedure;
a support device, adapted to support the filter, to retain a low profile position responsive to positive retention thereof in the low profile position so as to enable the filter to be inserted into and through the blood vessel, and to cross the stenosis therein, to a position distal to the interventional procedure site, without a sheath extending about the filter and the support device, and adapted to deform for expansion thereof into an open position, to enable the filter to capture embolic material, responsive to positive deforming for expansion thereof into the open position and retention therein; and
a mechanism for enabling the support device to be positively retained in the low profile position thereof and to be positively deformed for expansion thereof into the open position and retention therein, to enable the filter to be inserted into and through the blood vessel and to cross the stenosis therein, and to expand to capture embolic material. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A system for capturing embolic material which may be released into a blood vessel during a therapeutic interventional procedure at the site of a stenosis, comprising:
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a filter, adapted to be deployed distal to the interventional procedure site, and to pass blood therethrough and capture embolic material which may be released into the blood in the blood vessel during the interventional procedure;
means for supporting the filter, adapted to retain a low profile so as to enable the filter to be inserted into and cross the stenosis in the blood vessel, to a position distal to the interventional procedure site, without a sheath extending about the filter and the support device, to deform for expansion thereof into an open position to enable the filter to capture embolic material; and
a mechanism for enabling the support device to deform for expansion thereof into the open position to enable the filter to capture embolic material. - View Dependent Claims (21, 22)
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23. A method of capturing embolic material which may be released into a blood vessel during a therapeutic interventional procedure at the site of a stenosis, in a system which comprises a filter, adapted to be deployed distal to the interventional procedure site, and to pass blood therethrough and capture embolic material which may be released into the blood in the blood vessel during the interventional procedure, a support device, adapted to support the filter, to retain a low profile position responsive to positive retention thereof in the low profile position so as to enable the filter to be inserted into and through the blood vessel and cross the stenosis therein in the blood vessel, to a position distal to the interventional procedure site, without a sheath extending about the filter and the support device, and adapted to deform for expansion thereof into an open position to enable the filter to capture embolic material responsive to positive deforming for expansion thereof into the open position and retention therein, and a mechanism for enabling the support device to be positively retained in the low profile position thereof and to be positively deformed for expansion thereof into the open position and retention therein to enable the filter to be inserted into and through the blood vessel and cross the stenosis therein and to expand to capture embolic material, wherein the method comprises:
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inserting the support device and the filter supported thereon into the blood vessel and crossing the stenosis in the blood vessel, to a position distal to the interventional procedure site, with the support device retaining the low profile and without a sheath extending about the filter; and
activating the mechanism so as to enable the support device to deform and expand into the open position to enable the filter to capture embolic material. - View Dependent Claims (24, 25)
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Specification