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US 11,730,583 B2Granted
Tubular filter
AssigneeC.R. Band Inc
InventorsAndrzej J. Chanduszko, Michael Adam Randall
Life of this patent
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Abstract
A method of preparing a filter for delivery into a body vessel. The filter includes a hub disposed along a longitudinal axis and a plurality of anchor members extending from the hub. Each anchor member includes either a cranial extension or a caudal extension at a distal end thereof. At least one anchor member distal end may be spaced from the hub at each of a first, second, and third distance along the longitudinal axis. The filter also includes a plurality of locator members extending from the hub, the locator members alternatingly interposed between the anchor members.
Claims20
A vascular blood filter comprising:
- a) a hub disposed along a longitudinal axis;
- b) a plurality of appendages extending distally from said hub;
- c) said appendages including a plurality of anchor members;
- d) wherein each said anchor member has a distal most free end portion with an extension base;
- e) wherein each said extension base bifurcates into a penetration member and a limiter;
- f) some of said extension bases bifurcating into a cranial penetration member with a first radius of curvature and a cranial limiter;
- g) some of said extension bases bifurcating into a caudal penetration member and a caudal limiter having a second radius of curvature;
- h) wherein at least some of said cranial and said caudal penetration members extend distally from a respective said extension base;
- i) wherein the first radius of curvature is smaller than the second radius of curvature;
- j) a first slot that extends distally from a said extension base and that separates a said cranial penetration member from a said cranial limiter;
- k) a second slot that extends distally from a said extension base and that separates a said caudal penetration member from a said caudal limiter.
8 more elements
A vascular blood filter comprising:
- a) a hub disposed along a longitudinal axis;
- b) a plurality of appendages extending distally from said hub;
- c) said appendages including a plurality of anchor members, each having proximal and distal end portions;
- d) wherein multiple of said anchor members have a cranial extension base and multiple of said anchor members have a caudal extension base;
- e) wherein each said cranial extension base bifurcates into a cranial penetration member and a cranial limiter, wherein the cranial penetration member prevents migration of said hub in a cranial direction and the cranial limiter limits the depth of penetration of said cranial penetration member;
- f) wherein each said caudal extension base bifurcates into a caudal penetration member and a caudal limiter, wherein the caudal penetration member prevents migration of said hub in a caudal direction and the caudal limiter limits the depth of penetration of said caudal penetration member;
- g) wherein one or more said cranial and caudal limiters extends distally from a said cranial or caudal extension base;
- h) a first slot that separates a said cranial penetration member from a said cranial limiter;
- i) a second slot that extends distally from a said caudal extension base and that separates a said caudal penetration member from a said caudal limiter.
6 more elements
A vascular blood filter comprising:
- a) a hub disposed along a longitudinal axis;
- b) a plurality of anchor members extending distally from the hub;
- c) a plurality of locator members extending distally from the hub, each locator member disposed between two adjacent anchor members;
- d) wherein each anchor member includes a distal most free end portion with an extension base;
- e) wherein each extension base is bifurcated;
- f) an extension that extends from each said extension base and comprises a penetration member and a limiter;
- g) wherein one or more of said penetration members extends distally from a said extension base;
- h) wherein at least one said penetration member is a cranial penetration member and at least one said penetration member is a caudal penetration member;
- i) wherein at least one said limiter is a cranial limiter and at least one said limiter is a caudal limiter;
- j) wherein said cranial penetration member has a first curvature and said caudal limiter has a second curvature that is larger than the cranial penetration member first curvature;
- k) a first slot that separates a said cranial penetration member from a said cranial limiter;
- and
- l) a second slot that separates a said caudal penetration member from a said caudal limiter.
10 more elements
Dependencies are inferred from the claim text.