Embolic protection device
0 Assignments
0 Petitions
Accused Products
Abstract
An embolic protection device has a collapsible filter element (105) mounted on a carrier such as a guidewire (101). The filter element (105) collapses into the outer end of a catheter (118) for deployment and retrieval through a vascular system of a patient. The filter element (105) has a collapsible filter body with a proximal inlet end and a distal outlet end. The proximal inlet end has inlet openings sized to allow blood and embolic material enter the filter body. The outlet end has outlet openings which allow through passage of blood but retain embolic material within the filter body. After use, the catheter (118) is movable along the guidewire (101) to engage the proximal end of the filter element and close the inlet openings before sliding over the filter element from the proximal end to the distal end to progressively collapse the filter body on the guidewire (101) for retrieval. The filter element (105) may conveniently be mounted on a tubular sleeve (104) which is slidable and rotatable on the guidewire (101) between spaced-apart stops (106, 120) on the guidewire (101) which allows some manipulation of the guidewire independently of the filter when the filter is in use.
-
Citations
103 Claims
-
1-42. -42. (canceled)
-
43. A system for enabling the capture of embolic material which may be released into a blood vessel during a therapeutic interventional procedure, comprising:
-
a guide wire, including a distal end, adapted to be positioned within the blood vessel and to extend to a position distal to the interventional procedure site; and
a filter device, adapted to be positioned and deployed at a location in the patient'"'"'s vasculature distal to the interventional procedure site, and to capture embolic material which may be released into the blood in the blood vessel during the interventional procedure, including an articulating element, for enabling the filter device to articulate so as to move and flex during insertion through the blood vessel, and to expand against the inner surface of the wall of the blood vessel, and seal off the inner surface of the blood vessel wall, upon expansion of the filter device for deployment thereof, so as to inhibit the formation of a gap between the filter device and the blood vessel wall through which embolic material may otherwise flow. - View Dependent Claims (44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63)
-
-
64. A system for enabling the capture of embolic material which may be released into a blood vessel during a therapeutic interventional procedure, comprising:
-
a guide wire, including a distal end, adapted to be positioned within the blood vessel and to extend to a position distal to the interventional procedure site; and
a filter device, adapted to be positioned and deployed at a location in the patient'"'"'s vasculature distal to the interventional procedure site, and to capture embolic material which may be released into the blood in the blood vessel during the interventional procedure, including an articulating element, for enabling the filter device to be inserted through the blood vessel so as to move and flex to articulate therein, for enabling the filter device to navigate through confined spaces therein. - View Dependent Claims (65, 66, 67, 68)
-
-
69. A method of enabling the capture of embolic material which may be released into a blood vessel during a therapeutic interventional procedure, in a system which comprises a guide wire, including a distal end, adapted to be positioned within the blood vessel and to extend to a position distal to the interventional procedure site, and a filter device, adapted to be positioned and deployed at a location in the patient'"'"'s vasculature distal to the interventional procedure site, and to capture embolic material which may be released into the blood in the blood vessel during the interventional procedure, including an
articulating element, for enabling the filter device to articulate so as to move and flex during insertion through the blood vessel, and to expand against the inner surface of the wall of the blood vessel, and seal off the inner surface of the blood vessel wall, upon expansion of the filter device for deployment thereof, so as to inhibit the formation of a gap between the filter device and the blood vessel wall through which embolic material may otherwise flow, wherein the method comprises: -
inserting the guide wire, and the filter device secured to the distal end thereof, through the blood vessel, to the position distal to the interventional procedure site; and
deploying the filter device at the position distal to the interventional procedure site, wherein the articulating element articulates, enabling the filter device to expand against the inner surface of the wall of the blood vessel, and seal off the inner surface of the blood vessel wall, so as to inhibit the formation of a gap between the filter device and the blood vessel wall through which embolic material may otherwise flow.
-
-
70. A method of enabling the capture of embolic material which may be released into a blood vessel during a therapeutic interventional procedure, in a system which comprises, a guide wire, including a distal end, adapted to be positioned within the blood vessel and to extend to a position distal to the interventional procedure site, and a filter device, adapted to be positioned and deployed at a location in the patient'"'"'s vasculature distal to the interventional procedure site, and to capture embolic material which may be released into the blood in the blood vessel during the interventional procedure, including an articulating element, for enabling the filter device to be inserted through the blood
vessel so as to move and flex to articulate therein, for enabling the filter device to navigate through confined spaces therein, wherein the method comprises: -
inserting the guide wire, and the filter device secured thereto and unexpanded within a delivery sheath, through the blood vessel, to the position distal to the interventional procedure site, wherein the articulating element articulates, enabling the filter device to navigate through confined spaces in the blood vessel; and
deploying the filter device at the position distal to the interventional procedure site.
-
-
71. A distal protection device disposable within a vessel of a body, comprising:
-
a filter basket positionable at a desired axial location within the vessel, said filter basket having a closed distal end and an open proximal end;
a guidewire upon which said filter basket is mounted; and
a self-expanding arcuate member that, when expanded, creates a radial force against a vessel wall to control the lateral position of the filter at a desired location in the blood vessel. - View Dependent Claims (72, 73, 74, 75, 76)
-
-
77. Apparatus to facilitate proper positioning of a medical device within a generally tubular vessel of the body along a guidewire fed into the vessel, comprising:
-
an element maintaining the medical device deployed laterally on a defined side of the guidewire; and
a collapsible, quasi-rigid spacer carried by the guidewire proximate a desired axial end of the medical device, and maintained, when expanded, deployed laterally on the defined side of the guidewire, said spacer having a dimension on the defined side of the guidewire sufficient to engage an inner surface of the vessel at a circumferential location and urge the guidewire against the inner surface of the vessel at a generally diametrically opposite location. - View Dependent Claims (78, 79, 80, 81, 82, 83, 84, 85)
-
-
86. Apparatus to facilitate proper positioning of a medical device within a generally tubular vessel of the body along a guidewire fed into the vessel, comprising:
-
an element mounting the medical device to the guidewire at a defined axial position along the guidewire; and
a collapsible, quasi-rigid spacer carried by the element, wherein said device is generally axially aligned with said spacer, said spacer having a dimension on one side of the guidewire sufficient so that it engages an inner surface of the vessel at a circumferential location thereon and urges the guidewire against the inner surface of the vessel at a generally diametrically opposite location.
-
-
87. A distal protection device disposable within a vessel of a body, comprising:
-
a filter basket positionable at a desired axial location within the vessel, said filter basket having a closed distal end and an open proximal end;
a guidewire upon which said filter basket is mounted; and
a generally radially self-expanding quasi-rigid member associated with said filter basket in proximity to the proximal end thereof, and wherein the filter basket and self-expanding member are each mounted on the guidewire and generally axially aligned with each other, said self-expanding member, in its expanded state, having a dimension on one side of the guidewire sufficient so that it engages an inner surface of the vessel at a circumferential location thereon and urges the guidewire toward the inner surface of the vessel at a generally diametrically opposite location. - View Dependent Claims (88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102)
-
-
103. A distal protection device disposable within a vessel of a body, comprising:
-
a filter basket positionable at a desired axial location within the vessel, said filter basket having a closed distal end and an open proximal end;
a guidewire upon which said filter basket is mounted, said guidewire extending axially along said filter basket proximate a location on a periphery of a mouth defined by said open proximal end; and
a self-expanding arcuate member that, when expanded, creates a radial force against a vessel wall to control the lateral position of the guidewire at a desired location in the blood vessel.
-
Specification