EXTENDED DURATION REMOVABLE MEDICAL FILTER
First Claim
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1. An elongated medical filter for placement inside a tubular body passage of a patient comprising:
- (A) a central spine extending along the longitudinal axis of said filter, said spine carrying a retrieval element at one end thereof;
(B) a plurality of filter sections attached to said spine and spaced apart longitudinally thereon, each of said filter sections having a plurality of radial arms, each of said radial arms extending outwardly from said spine to a parallel end segment extending axially generally parallel to said longitudinal axis away from said retrieval element, each said end segment having a tip extending radially inwardly.
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Abstract
A medical filter intended for placement inside a tubular body passage of a patient has a generally longitudinally extending central spine with a retrieval element at one end; and a plurality of filter sections attached to and spaced along the spine, each of the filter sections having a plurality of radial arms attached to the spine and extending radially outwardly with parallel end segments extending axially generally parallel to the longitudinal axis, each of the end segments ending in a tip which extends radially inwardly. Each filter section may also have a graft band attached to the parallel end segments of the radial arms.
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Citations
16 Claims
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1. An elongated medical filter for placement inside a tubular body passage of a patient comprising:
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(A) a central spine extending along the longitudinal axis of said filter, said spine carrying a retrieval element at one end thereof; (B) a plurality of filter sections attached to said spine and spaced apart longitudinally thereon, each of said filter sections having a plurality of radial arms, each of said radial arms extending outwardly from said spine to a parallel end segment extending axially generally parallel to said longitudinal axis away from said retrieval element, each said end segment having a tip extending radially inwardly. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. The combination of a body vessel of a patient and implanted in said vessel, an elongated medical filter comprising:
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(A) a central spine extending along the longitudinal axis of said filter, said spine carrying a retrieval element at one end thereof; (B) a plurality of filter sections attached to said spine and spaced apart longitudinally thereon, each of said filter sections having a plurality of radial arms, each of said radial arms extending outwardly from said spine to a parallel end segment extending axially generally parallel to said longitudinal axis away from said retrieval element, each said end segment having a tip extending radially inwardly. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16)
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Specification