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US 6,273,900 B1Granted
Blood clot filtering
AssigneeBoston Scientific Corporation
InventorsSepideh H. Nott, Hannah S. Kim, Naroun Soun, David L. Sandock
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AssigneeBoston Scientific Corporation
InventorsSepideh H. Nott, Hannah S. Kim, Naroun Soun, David L. Sandock
Estimating the term…
A blood clot filter comprising: an anchoring portion comprising a generally cylindrical self-expanding body formed from resilient material, the generally cylindrical body having proximal and distal ends and defining an axial direction and having a structure of variable size diameter expandable from a low-profile compressed condition to a larger profile expanded condition, wherein the resilient material urges the generally cylindrical body to radially expand and to thereby apply anchoring radial force against the inner wall surface of the blood vessel; and a generally conical filtering portion axially aligned with the generally cylindrical body having an open proximal end coupled to the distal end of the anchoring portion and having an apical distal end. Also disclosed is a blood clot filter having one or more hooks fixedly coupled to the anchoring portion and formed from compliant material having an original shape that bends under stress yet returns to its original shape when unstressed. The hooks respectively tend to project from the anchoring portion at an acute angle with respect to the axial direction for engagement with a vessel wall. Also, the hooks are deflectable toward the anchoring portion for achieving a low-profile.
An anchoring apparatus for anchoring a cylindrical portion of an implantable blood clot filter device to a wall of a body vessel, comprising:
An implantable blood clot filter device for implantation in a body vessel having a wall, comprising:
An implantable blood clot filter device comprising a generally cylindrical portion including an elongated strand attached to an anchoring means for anchoring the cylindrical portion to a wall of the vessel, wherein the anchoring means includes a tubular member oriented along a longitudinal axis and surrounding the elongated strand for positioning adjacent said vessel wall, and an elongated member extending through the tubular member, the elongated member being formed of a compliant material, having a substantially flat side, and having first and second end portions extending from corresponding ends of the tubular member for engaging the wall of the vessel, the first and second end portions of the elongated member diverging from the longitudinal axis, and wherein both the elongated member and the tubular member are fixed relative to the elongated strand.
An anchorable implantable device for anchoring within a blood vessel comprising:
Dependencies are inferred from the claim text.