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 plurality of struts coupled to 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
(d) means for preventing said plurality of struts extending outwardly until said filter is to be deployed into a blood vessel.
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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.
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Citations
68 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 plurality of struts coupled to 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
(d) means for preventing said plurality of struts extending outwardly until said filter is to be deployed into a blood vessel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. 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 strut assembly coupled to said distal end of said guide member, said strut assembly comprising a plurality of struts, at least one of said plurality of struts being biased to extend outwardly away from a longitudinal axis of said lumen of said guide member;
(c) a filter coupled to at least one of said plurality of struts, said filter being adapted to filter material from fluid flowing in a fluid stream within which said filter is disposed; and
(d) a restraining member surrounding at least one of said plurality of struts and said distal end of said guide member, said restraining member being adapted to prevent said plurality of struts extending outwardly and subsequently release said plurality of struts when said filter is to be deployed into the fluid stream. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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31. A filter device for percutaneous insertion into a blood vessel during a procedure, the filter device comprising:
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(a) a guide member comprising a distal end, a proximal end, and a lumen extending from said distal end to said proximal end, said guide member being configured to act as an exchange guidewire;
(b) a filter assembly coupled to said guide member, said filter assembly comprising a filter adapted to filter material from a blood stream and a plurality of struts; and
(c) means for preventing said plurality of struts from extending outwardly to allow said filter to deploy into the blood stream in the blood vessel. - View Dependent Claims (32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44)
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45. 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; and
(iii) 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 (46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68)
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Specification