JP2012213517A5

JP2012213517A5 -

Info

Publication number: JP2012213517A5
Application number: JP2011080909A
Authority: JP
Filing date: 2011-03-31
Publication date: 2014-02-20
Anticipated expiration: 2031-03-31

Description

上記目的を達成するために、本発明は、以下の手段を提供する。
本発明の脱血管は、筒状に形成され内部を血液が流れる管本体と、該管本体の端部であって、生体の壁部に形成された貫通孔に挿入される挿入部と、該挿入部の外周面に配置された前記生体の組織と親和性を有する接合部と、前記挿入部の端部における外周面全周にわたって配置され、前記接合部と比較して、前記生体の組織との親和性が低い先端部と、が設けられていることを特徴とする。
また、前記接合部は、生分解性物質を含ませたものであることが望ましい。 In order to achieve the above object, the present invention provides the following means.
The devascularization of the present invention is a tube body that is formed in a cylindrical shape and through which blood flows, an insertion portion that is an end portion of the tube body and is inserted into a through-hole formed in a wall of a living body, tissue of the living organism disposed in the outer peripheral surface of the insertion portion and the junction that having a affinity, is disposed over the outer peripheral surface entire periphery of the end portion of the insertion portion, as compared with the joint portion, the biological And a tip portion having a low affinity with the tissue.
In addition, it is desirable that the joint portion includes a biodegradable substance.

上記発明においては、前記接合部は、不織布であることが望ましい。
また、前記接合部は、ポリエステル樹脂から形成された繊維の不織布であることが望ましく、さらに望ましくは生分解性物質を含ませたものとされている。 In the above invention, the joint is preferably a nonwoven fabric.
Moreover, it is desirable that the joining portion is a non-woven fabric of fibers formed from a polyester resin, and more desirably a biodegradable substance is included.

Claims

A tube body that is formed in a tubular shape and through which blood flows;
An insertion portion which is an end portion of the tube main body and is inserted into a through-hole formed in a wall portion of a living body;
A junction that have a tissue affinity of the living organism disposed in the outer peripheral surface of the insertion portion,
Disposed over the entire circumference of the outer peripheral surface at the end of the insertion part, compared to the joint part, the tip part having a low affinity with the tissue of the living body,
Devascularization characterized in that is provided.

The joint is de-vascular according to claim 1, characterized in that the non-woven fabric.

The blood vessel removal device according to claim 1, wherein the joint portion is a nonwoven fabric of fibers formed from a polyester resin.

The blood vessel removal according to any one of claims 1 to 3, wherein the joint portion contains a biodegradable substance.

The length of the insertion portion in the longitudinal direction is such that when the insertion portion is inserted through the through-hole, the tip portion can protrude from the surface of the wall of the living body by a predetermined amount,
The predetermined amount that protrudes is within a range determined based on data in which a stagnation region is not formed around the distal end portion and that can prevent intrusion into the insertion portion due to growth of the living body. The devascularization according to any one of claims 1 to 4 .

A non-woven fabric for fixing the tube body to the wall of the living body is further provided,
6. The nonwoven fabric according to any one of claims 1 to 5 , wherein the nonwoven fabric is capable of being bonded to an outer surface of a wall portion of the living body, has affinity with the tissue of the living body, and contains a biodegradable substance. Devascularization.

A devascularization according to any one of claims 1 to 6 , wherein the blood vessel is connected to a heart and blood in the heart flows therein.
A pump unit through which the blood flows from the heart via the devascularization;
A blood-feeding blood vessel into which the blood sent out from the pump part flows,
An auxiliary artificial heart characterized in that is provided.