There are currently about 650,000 kidney disease patients in my country, and about 200,000 patients undergoing dialysis treatment (half of the rural or poor patients have no money to give up treatment or discontinue treatment). The annual incidence of end-stage renal disease is more than 10/100,000 people (i.e. 140,000).
Hemodialysis is one of the important alternative treatment measures for patients with chronic failure. Good pipelines are a necessary condition to ensure adequate dialysis, which has an important impact on the dialysis effect and the patient's life. The continuous development of blood access technology has improved the dialysis efficiency of patients with renal failure and the quality of life of patients has also been continuously improved. With the aging of the world's population and the continued increase in the incidence of diabetes and hypertension, existing vascular lesions have brought challenges to the establishment of vascular access. Therefore, for patients with emergency (emergency hemodialysis) and poor vascular conditions and failed fistula surgery, the use of deep vein indwelling double-lumen catheters has been widely used in clinical practice.
In clinical practice, almost 100% of patients use CVC (hemodialysis catheter) for the first dialysis. The dialysis catheter used for the first dialysis is generally a short-term dialysis catheter, that is, the use of short-term dialysis catheters in hemodialysis centers is 140,000 sets/year. Considering the large-capacity central venous catheters (hemodialysis catheters) required in other situations such as emergency, ICU, and transplantation, the market capacity of short-term hemodialysis catheters is estimated to be about 200,000 sets/year.
For patients who are not suitable for long-term hemodialysis by fistula due to poor autologous vascular conditions caused by diabetes, hypertension, and failed fistula surgery, it is advisable to use long-term hemodialysis catheters for hemodialysis. There are about 200,000 continuous hemodialysis patients in China. According to statistics, about 10% of long-term hemodialysis patients use permanent double-lumen catheters (long-term hemodialysis catheters). Calculated as a tube replacement once every 6 months, the market capacity of long-term hemodialysis catheters is about 40,000 sets/year.
Short-term hemodialysis catheters, CVC (central venous catheter) for continuous hemodialysis has become a common trend internationally, especially in developed countries. In Canada, 33% of maintenance hemodialysis patients use CVC; in the United States, about 47%.
In China, with the development of biomaterial technology and medicine, the proportion of hemodialysis using central venous catheters will increase.