English
The angiographic catheter is a long rubber tube whose main function is to provide a guide for the contrast agent to be smoothly introduced into the blood vessel to produce a contrast effect. Therefore, a contrast catheter should meet the following basic conditions: the inner tube is smooth and can generate high flow rate; the imaging performance is high; the non-traumatic tip must have a very high original shape retention performance and is not easy to deform; the guide wire can be easily passed through, etc.
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