EMBOLUS BLOOD CLOT FILTER WITH BIO-RESORBABLE COATED FILTER MEMBERS

摘要

A blood clot filter includes a number of locator members and anchor members, each of the members tipped with a retainer encompassed within bio-resorbable cover material. Upon delivery into a blood vessel, the locator and anchor members position the filter near the vessel centerline. After a period of time, the bio-resorbable cover material resorbs, allowing the retainer on the members to penetrate and attach to the vessel wall. A method of implanting the filter includes delivering the filter into a blood vessel and allowing the bio-resorbable cover material to resorb so retainers on the members can engage the vessel walls.

主权项

1. A filter to be placed in a blood vessel, the filter comprising:
a) a plurality of appendages, each appendage having a curved anchor with a sharp free end tip; and b) a bio-resorbable mass of material that encapsulates the entire anchor including the sharp free end tip, wherein said mass of material has an outer surface that is smooth for enabling the mass of material to slide along the inside of the vessel.