Methods, systems, and devices for providing embolic protection
First Claim
1. A filter device comprising:
- (a) a guide member comprising a distal end, a proximal end, and a lumen extending from the distal end to the proximal end;
(b) a filter assembly coupled to said guide member, said filter assembly comprising;
(i) a filter comprising a proximal end with an opening formed therein; and
(ii) a plurality of struts coupled to said proximal end of said filter, each of said plurality of struts being biased to open said opening; and
(c) an actuating assembly coupled to said guide member and said filter assembly, said actuating assembly comprising;
(i) a restraining member cooperating with said plurality of struts, said restraining member applying a restraining force to the plurality of struts to prevent the plurality of struts from extending outwardly;
(ii) an actuating member coupled to said restraining member and extending toward said proximal end of said guide member, said actuating member is at least partially disposed in said lumen of said guide member; and
(d) an actuating element coupled to a proximal end of said actuating member, said actuating element being adapted to move in a proximal direction to release the restraining force to enable said plurality of struts to extend outwardly.
1 Assignment
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Accused Products
Abstract
A filter device is adapted to function as a guidewire, an exchange guidewire, and provide embolic protection during a procedure. The filter device includes a filter assembly that is either integral with or coupled to a guide member. The filter assembly includes a plurality of struts that expand outwardly to deploy a filter that collects or captures material flowing along the blood vessel within which the filter device is deployed. The plurality of struts are constrained by a restraining member or mechanism that prevents the plurality of struts from expanding or extending outwardly to deploy the filter. Cooperating with the restraining member or mechanism is an actuating assembly that is adapted to release the restraining member or mechanism and enable the filter to be deployed from the guide member. A capture catheter that cooperates with the filter device and substantially surrounds the filter during removal of the filter device.
345 Citations
44 Claims
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1. A filter device comprising:
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(a) a guide member comprising a distal end, a proximal end, and a lumen extending from the distal end to the proximal end;
(b) a filter assembly coupled to said guide member, said filter assembly comprising;
(i) a filter comprising a proximal end with an opening formed therein; and
(ii) a plurality of struts coupled to said proximal end of said filter, each of said plurality of struts being biased to open said opening; and
(c) an actuating assembly coupled to said guide member and said filter assembly, said actuating assembly comprising;
(i) a restraining member cooperating with said plurality of struts, said restraining member applying a restraining force to the plurality of struts to prevent the plurality of struts from extending outwardly;
(ii) an actuating member coupled to said restraining member and extending toward said proximal end of said guide member, said actuating member is at least partially disposed in said lumen of said guide member; and
(d) an actuating element coupled to a proximal end of said actuating member, said actuating element being adapted to move in a proximal direction to release the restraining force to enable said plurality of struts to extend outwardly. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A filter device comprising:
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(a) a guide member comprising a distal end, a proximal end, and a lumen extending from the distal end to the proximal end, (b) a plurality of struts extending from the distal end of said guide member, at least one of said plurality of struts being biased to extend outwardly, each strut of said plurality of struts comprises a proximal portion separated from a distal portion by an intermediate portion, wherein a length of each strut is varied to control a biasing force of each strut;
(c) a filter coupled to at least two of said plurality of struts, said filter being adapted to filter material from a blood stream and having an open proximal end and a closed distal end; and
(d) means for preventing said plurality of struts extending outwardly until said filter is to be deployed into a blood vessel. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31, 32, 33)
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34. A filter device comprising:
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(a) a guide member comprising a distal end, a proximal end, and a lumen extending from the distal end to the proximal end;
(b) a plurality of struts extending from the distal end of said guide member, at least one of said plurality of struts being biased to extend outwardly;
(c) a filter coupled to at least two of said plurality of struts, said filter being adapted to filter material from a blood stream and having an open proximal end and a closed distal end; and
(d) means for preventing said plurality of struts extending outwardly until said filter is to be deployed into a blood vessel, said means for preventing comprising a restraining member cooperating with said plurality of struts and applying a restraining force to said plurality of struts and an actuating member selectively coupled to said restraining member, said actuating member is at least partially disposed within said lumen of said guide member and extends toward said proximal end of said guide member. - View Dependent Claims (35, 36, 37, 38, 39, 40, 41, 42, 43, 44)
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Specification