US 10,702,370 B2 · Lumen stent

Abstract

A lumen stent includes a first tube body and a second tube body. The second body is sleeved outside the first body and has at least one end in hermetic connection with the outer surface of the first body. The second body includes a thin film body that covers at least part of the first body and a second radial supporting structure that is disposed in a maximum radius-length region of the thin film body and surrounds the maximum radius-length region. The second radial supporting structure has radius supporting property. After the implantation of the lumen stent, a semi-enclosed gap can be formed between the first body and the second body, or a semi-enclosed gap can be formed between the second body and a tube wall, so that blood flowing into the gap can serve as a filling material and prevent blood from flowing into a tumor body.

Claims13

Dependent claims

A luminal stent graft, comprising:

a first tubular body and a second tubular body, wherein the second tubular body is sleeved outside the first tubular body, and at least one end of the second tubular body is sealingly connected with an outer surface of the first tubular body;
the first tubular body comprises at least one first radial supporting structure distributed along a circumferential direction of the first tubular body,
the second tubular body comprises a graft covering at least one portion of the first tubular body, and a second radial supporting structure which is arranged in a maximum radial length region of the graft and surrounds the maximum radial length region, and
the second radial supporting structure has radial supportability, wherein radial deformability of the second radial supporting structure than that of the first radial supporting structure.

1 more element

Dependencies are inferred from the claim text.

Lumen stent

Life of this patent

Lumen stent

Life of this patent

Abstract

Claims13