Development of new implant vascular access

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  • 新しい埋め込み型Ｖａｓｃｕｌａｒ　ａｃｃｅｓｓの開発
  • アタラシイ ウメ コミ ガタ Vascular access ノ カイハツ

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Abstract

Problems of vascular access in hemodialysis have existed for years, and still remain unresolved. The numbers of diabetic patients with renal failure are increasing as the population ages and develop arteriosclerosis and, as a result, the number of difficult cases are increasing. Hemasite, which was developed and first sold by Renal Systems (USA) around 1980, was introduced to Japan around 1983. From 1984 to 2005, my hospital used Hemasite in 43 cases. We analyzed the various complications of these cases to identify the cause of the complications, and found that the blood flow through the shunt tended to increase more than necessary and adversely affected both the venous and arterial walls to cause an increased cardiac workload, inducing more symptoms. I planned, designed, and made a trial device to control the blood flow on using Hemasite to prevent various complications without decreasing the effective blood hemostatic function of Hemasite, which uses silicon gum as a divider. I believe that the development of this new type of vascular access, which can be installed with a single surgical procedure and can be used for a long period, will contribute greatly to the field of artificial dialysis.

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