Artificial blood vessel with frame

Abstract

Abstract PURPOSE:To obtain an artificial blood vessel with a frame where the artificial blood vessel can be transplanted in a non-operation manner by providing elastic ring-shaped wire rod portions capable of freely bending, on both end portions of the artificial blood vessel. CONSTITUTION:A frame 6 for an artificial blood vessel 1 is formed in a solid structure by ring-shaped wire rod portions 2 positioned on both sides and a connecting wire rod portion 3 for connecting both side ring-shaped wire rod portions 2 to each other. A material of soft quality excellent in elastic restoring force such as a titanium-nickel alloy wire is used as material for the frame 6. The artificial blood vessel 1 where the frame 6 is installed is reduced in its diameter and folded up so as to be inserted in a long sheath 4. The forward end portion of the long sheath 4 is fed into the diseased part of a blood vessel 5, and the artificial blood vessel 1 is pushed in the direction of an arrow (a) by a push rod 7 to pull out the long sheath 4 in the direction of an arrow (b). Whereupon, only the artificial blood vessel 1 is left behind, and the folded ring-shaped wire rod portions 2 are elastically restored to the original ring shape by the elastic restoring force. The artificial blood vessel 1 is held cylindrically, both end portions of the artificial blood vessel 1 are forced to closely adhere to the blood vessel 5 walls of both sides of an ill part 8 of the aorta or the like, and the artificial blood vessel 1 is fixed to the inside of the blood vessel 5.

Inventors

• 👤 Kanji Inoue
• 👤 寛治 井上

Bibliographic Details