The product consists of balloon, developing ring, outer tube, handle, two{{0}}way valve, tightening valve and air injection cylinder. Main technical indicators: 1. No leakage: keep the balloon for 5 minutes after inflating, and the diameter change does not exceed 1.0mm; 2. Breaking force: the minimum breaking force between the outer tube and the handle should not be less than 15N; 3. Catheter operation Properties: The guide wire cavity should be unobstructed and unobstructed; the fluid-filled cavity in the handle and the air injection cavity should be unobstructed, the balloon can be inflated and withdrawn smoothly, and should not be blocked; 4. The product should be sterile.
Scope of application It is used in conjunction with an endoscope to enter the biliary tract through a duodenal endoscope for biliary stone extraction.
