Endovascular guidewire filter and methods of use
First Claim
1. An endovascular filter, comprising:
- an elongate tubular member having a proximal end, a distal end, and a first proximal port proximal the distal end of the elongate tubular member;
a first flexible member having a proximal end that passes through the first proximal port of the elongate tubular member, and having a distal end fixed to the elongate tubular member at a first point distal the first proximal port, the first point being located at a circumferential position approximately 180°
from the first proximal port;
a filter disposed about the first flexible member, wherein the first flexible member is expanded by advancing distally the proximal end of the first flexible member.
2 Assignments
0 Petitions
Accused Products
Abstract
A filter device for temporary placement of a filter in an artery or vein is disclosed. The devices include (1) an elongate tubular member having a single or double side-wire loop, (2) an elongate member having a filter bonded to a circular rim joined by a plurality of tethers and an independently moveable tether, and (3) an elongate member having a parachute filter joined by a plurality of flexible struts. The filter conforms to the interior of a vessel wall when expanded and contracts to a consistent diameter without bunching when stowed. The filter devices may act as guidewires for guiding a therapeutic catheter to a region of interest within a vessel. Methods of using the filter device to entrap and remove embolic material from a vessel during endovascular procedures are also disclosed.
-
Citations
86 Claims
-
1. An endovascular filter, comprising:
-
an elongate tubular member having a proximal end, a distal end, and a first proximal port proximal the distal end of the elongate tubular member;
a first flexible member having a proximal end that passes through the first proximal port of the elongate tubular member, and having a distal end fixed to the elongate tubular member at a first point distal the first proximal port, the first point being located at a circumferential position approximately 180°
from the first proximal port;
a filter disposed about the first flexible member, wherein the first flexible member is expanded by advancing distally the proximal end of the first flexible member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 84)
-
-
11. A method for performing an endoluminal procedure, comprising the steps of:
-
providing an endovascular filter comprising an elongate tubular member having a proximal end, a distal end, a first proximal port proximal the distal end of the elongate tubular member, and a first flexible member having a proximal end that passes through the first proximal port of the elongate tubular member, and having a distal end fixed to the elongate tubular member at a first point distal the first proximal port, the first point being located at a circumferential position approximately 180°
from the first proximal port, the first flexible member having a filter disposed thereon;
inserting the endovascular filter into a patient'"'"'s vessel;
advancing the filter to a region of interest; and
advancing distally the first flexible member to expand the filter. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 27, 28, 29, 30, 31, 32, 85, 86)
-
-
26. An endovascular filter, comprising:
-
an elongate tubular member having a proximal end, a distal end, and a lumen therebetween, the lumen communicating with a port at the distal end; and
a flexible loop disposed within the lumen of the elongate tubular member and having a first end, a second end, and an intermediate section positioned near the port of the elongate tubular member, the loop having a filter disposed about the intermediate section, wherein the first end of the flexible loop is operated to advance the loop distally, the intermediate section of the loop extends through the port and into a lumen of a vessel, and the filter is thereby deployed.
-
-
33. A method for performing an endoluminal procedure, comprising the steps of:
-
providing an endovascular filter comprising an elongate tubular member having a proximal end, a distal end, and a lumen communicating with a distal port, the elongate tubular member having a flexible loop disposed within the lumen of the elongate tubular member and having a first end, a second end, and an intermediate section having a filter disposed thereon;
inserting the endovascular filter into a patient'"'"'s vessel;
positioning the filter at a region of interest; and
advancing distally the first end of the loop so that the intermediate section of the loop extends from the port of the elongate tubular member, and the filter covers the lumen of the vessel. - View Dependent Claims (34, 35, 36, 37, 38, 39, 40, 41, 42)
-
-
43. An endovascular filter, comprising:
-
an elongate member having a proximal end and a distal end;
a capture sheath slideably disposed about the elongate member;
a plurality of tethers, each tether coupled at a first end to the distal end of the elongate member;
a circular rim coupled to each of said plurality of tethers at a second end of each of said tethers;
an independently moveable tether coupled at a first end to the circular rim; and
a filter disposed about the circular rim. - View Dependent Claims (44, 45, 46, 47, 48, 49, 50, 51, 52, 53)
-
-
54. A method for performing an endoluminal procedure, comprising the steps of:
-
providing an endovascular filter comprising an elongate member, a capture sheath slideably disposed about the elongate member, a plurality of tethers, each tether coupled at a first end to a distal end of the elongate member, a circular rim coupled to each of said plurality of tethers at a second end of each of said tethers, an independently moveable tether coupled at a first and to the circular rim, and a filter disposed about the circular rim;
inserting the endovascular filter into a patient'"'"'s vessel;
positioning the distal end of the elongate member within a region of interest;
withdrawing a capture sheath to release the circular rim and filter within the region of interest;
withdrawing the independently moveable tether to rotate the circular rim into alignment with the elongate member; and
advancing the capture sheath distally to cover the circular rim and filter. - View Dependent Claims (55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70)
-
-
71. A method for performing an endoluminal procedure, comprising the steps of:
-
providing an endovascular filter comprising an elongate member having a plurality of flexible struts coupled to a distal end, each of said plurality of flexible struts coupled at an opposite end to a filter, and a capture sheath slideably disposed about the elongate member and filter;
advancing the filter to a region of interest within a patient'"'"'s vessel;
withdrawing the capture sheath to release the filter, wherein the filter expands within the region of interest;
rotating the elongate member, wherein the plurality of flexible struts rotate to contract the filter; and
advancing the capture sheath distally to cover the plurality of flexible struts and the filter. - View Dependent Claims (72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83)
-
Specification