US 2019/0239998 A1 · BLOOD VESSEL TUBE

Abstract

Apparatus and methods are described including a tube (20) that defines a flared downstream portion (30) that diverges toward a downstream end (32) of the tube, and a flared upstream portion (26) that diverges toward an upstream end (28) of the tube, such that a central portion (34) of the tube is narrower than at the ends of the tube. The tube defines a plurality of lateral openings (36). A support frame (24) supports the tube within a subject's vena cava, such that the downstream portion is sealed with respect to the wall of the vena cava downstream of junctions of the vena cava with all of the subject's renal veins, and the upstream portion is sealed with respect to the inner wall of the vena cava upstream of junctions of the vena cava with all of the subject's renal veins. Other applications are also described.

Claims26

Dependent claims

Apparatus for use with renal veins and a vena cava of a subject, the apparatus comprising:

a tube that defines:
a flared downstream portion thereof that diverges toward a downstream end of the tube, and a flared upstream portion thereof that diverges toward an upstream end of the tube, such that a central portion of the tube is narrower than at the ends of the tube, and
a plurality of lateral openings;
and
a support frame configured to support the tube within the subject's vena cava, such that:
the downstream portion of the tube is sealed with respect to an inner wall of the vena cava at a location that is downstream of junctions of the vena cava with all of the subject's renal veins, and
the upstream portion of the tube is sealed with respect to the inner wall of the vena cava at a location that is upstream of junctions of the vena cava with all of the subject's renal veins.

4 more elements

Dependencies are inferred from the claim text.

Blood vessel tube

Life of this patent

Blood vessel tube

Life of this patent

Abstract

Claims26