Retrievable intravascular filter with bendable anchoring members
First Claim
Patent Images
1. A retrievable intravascular filter, comprising:
- an apical head;
a plurality of elongated filter legs actuatable between a collapsed position and an expanded position within a blood vessel; and
one or more bendable anchoring members configured to releasably secure the elongated filter legs to the wall of the blood vessel, each of said one or more anchoring members including a coiled member being configured to selectively bend in response to an external force applied thereto.
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Abstract
Retrievable intravascular filters for insertion within a blood vessel are disclosed. A retrievable intravascular filter in accordance with an illustrative embodiment of the present invention includes an apical head operatively coupled to a number of elongated filter legs that can be used to collect blood clots contained within a blood vessel. A bendable anchoring member coupled to or formed integrally with one or more of the elongated filter legs can be used to temporarily or permanently secure the intravascular filter to the wall of the blood vessel.
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Citations
36 Claims
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1. A retrievable intravascular filter, comprising:
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an apical head;
a plurality of elongated filter legs actuatable between a collapsed position and an expanded position within a blood vessel; and
one or more bendable anchoring members configured to releasably secure the elongated filter legs to the wall of the blood vessel, each of said one or more anchoring members including a coiled member being configured to selectively bend in response to an external force applied thereto. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A retrievable intravascular filter, comprising:
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an apical head;
a plurality of elongated filter legs actuatable between a collapsed position and an expanded position within a blood vessel; and
one or more bendable anchoring members configured to releasably secure the elongated filter legs to the wall of the blood vessel, each of said one or more anchoring members including a coiled member and a pointed tip portion. - View Dependent Claims (13, 14, 15, 16, 17, 18)
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19. A retrievable intravascular filter, comprising:
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an apical head;
a plurality of elongated filter legs actuatable between a collapsed position and an expanded position within a blood vessel; and
one or more bendable anchoring members configured to releasably secure the elongated filter legs to the wall of the blood vessel, each of said one or more anchoring members including a spiraled member and a pointed tip portion. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27)
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28. A system for retrieving an intravascular filter implanted along the wall of a blood vessel, comprising:
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a retrievable intravascular filter comprising an apical head and a plurality of elongated filter legs, one or more of the elongated filter legs including a bendable anchoring member configured to selectively bend in response to an external force applied thereto;
a retrieval catheter having a proximal section, a distal section, and an internal lumen therethrough; and
an elongated member slidably disposed within the internal lumen of the retrieval catheter, said elongated member including means for engaging a retrieval member on the apical head. - View Dependent Claims (29, 30, 31, 32)
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33. A method for retrieving an intravascular filter within a blood vessel, comprising the steps of:
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providing a retrievable intravascular filter implanted along the wall of a blood vessel, the intravascular filter including an apical head and a plurality of elongated filter legs, one or more of the elongated filter legs including a bendable anchoring member configured to selectively bend in response to an external force applied thereto;
providing a retrieval catheter having a proximal section, a distal section, and an internal lumen disposed therethrough;
providing an elongated member within the internal lumen of the retrieval catheter, the elongated member including means for engaging a retrieval member on the apical head;
advancing the retrieval catheter and elongated member to a position within the body adjacent to the implantation site of the retrievable intravascular filter;
coupling the elongated member to the retrieval member; and
pulling the elongated member proximally, causing the one or more bendable anchoring members to selectively bend and detach from the wall of the blood vessel. - View Dependent Claims (34, 35, 36)
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Specification