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US 4,662,885 AGranted
Percutaneously deliverable intravascular filter prosthesis
AssigneeBecton, Dickinson and Company
InventorJoseph A. DiPisa, Jr.
Life of this patent
Estimating the term…
Abstract
An intravascular prosthesis comprises a lining rolled upon itself around an axis so that it is introducible into a vascular lumen. An inflatable channel is included for unrolling the lining when the prosthesis is positioned within the lumen so that the lining may engage the vascular wall to provide support therefor. A filter is provided for filtering the blood which passes through the prosthesis when the lining is unrolled.
Claims15
An intravascular prosthesis comprising:
- a lining rolled upon itself in a plurality of turns around a longitudinal axis so that it is introducible into a vascular lumen surrounded by a vascular wall;
- an inflatable channel associated with said lining and being rolled upon itself around said longitudinal axis, said channel including a filling port for the introduction of fluid into said channel for the inflation thereof, said lining and said channel having the capability of unrolling when said channel is inflated so that the lining may engage the vascular wall to provide support therefor;
- and
- a porous filter connected to said lining and positioned so that, when the lining is unrolled, said filter extends substantially transversely across the interior of said unrolled lining to prevent blood from passing through the prosthesis.
1 more element
An intravascular prosthesis comprising:
- a lining rolled upon itself in a plurality of turns around an axis so that it is introducible into a vascular lumen surrounded by a vascular wall;
- means for unrolling the lining when the prosthesis is positioned within said lumen so that the lining may engage the vascular wall to provide support therefor, said means for unrolling further including actuation means for causing said lining to unroll, said actuation means being fluid introduced into said means for unrolling;
- and
- filter means for filtering the blood which passes through the prosthesis when said lining is unrolled.
1 more element
An intravascular prosthesis assembly comprising:
- a lining rolled upon itself in a plurality of turns around an axis so that it is introducible into a vascular lumen surrounded by a vascular wall;
- means for unrolling the lining when the prosthesis is positioned within said lumen so that the lining may engage the vascular wall to provide support therefor, said means for unrolling including an inflatable channel;
- filter means for filtering the blood which passes through the prosthesis when said lining is unrolled;
- and
- activation means connected to said means for unrolling for causing said lining to unroll including an elongate portion extendable outside of the body in which said vascular lumen is located so that activation is achievable externally of said body, said elongate portion being a hollow catheter detachably connected to said channel so that fluid may be introduced through said catheter to said channel to inflate same.
2 more elements
Dependencies are inferred from the claim text.