Hemodialysis catheter with extensible function

Abstract

The invention discloses a hemodialysis catheter with an extensible function. The hemodialysis catheter comprises a catheter body; the top of the catheter body communicates with a connecting seat; the top of the connecting seat communicates with an extension pipe A and an extension pipe B; the end, away from the connecting seat, of the extension pipe A communicates with a joint A; the end, away from the connecting seat, of the extension pipe B communicates with a joint B; a furcation assembly is arranged at the end, away from the connecting seat, of the catheter; the furcation assembly comprises a short furcation pipe and a long furcation pipe; a side hole is formed in the side wall of the short furcation pipe; a guide wire catheter C is connected to an inner cavity of the long furcation pipe; a bending and stretching component is movably inserted into an inner cavity of the guide wire catheter A; vertical long guide wires are movably inserted into inner cavities of a guide wire catheter B and guide wire catheter C correspondingly; and circulating holes are formed in bottom ends of the short furcation pipe and long furcation pipe correspondingly. After the hemodialysis catheter enters a heart from a blood vessel, the short furcation pipe can be bent and stretched, so that the short furcation pipe and the long furcation pipe can be separated, which guarantees a treatment effect of the hemodialysis catheter.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a hemodialysis catheter with an extendable function. Background technique [0002] Hemodialysis is one of the renal replacement therapies for patients with acute and chronic renal failure. It drains the blood from the body to the outside of the body, and passes through a dialyzer composed of countless hollow fibers. The whole process of exchanging substances with the principle of convection, removing metabolic waste in the body, maintaining electrolyte and acid-base balance; at the same time removing excess water in the body, and returning the purified blood is called hemodialysis. The hemodialysis catheter is the tubing that connects the patient's blood vessels to the dialyzer. Blood comes out of the arterial end, passes through the dialyzer, and then returns to the patient through the venous end. The end of the hemodialysis tube is connected with a longer branch tube ...

AI Technical Summary

Problems solved by technology

The end of the hemodialysis tube is connected with a longer branch tube and a shorter branch tube. However, after the existing hemodialysis tube enters the heart from the blood vessel, it is difficult to separate the two branch tubes. It is easy to affect the therapeutic effect of the hemodialysis catheter. In order to solve the above problems, we propose a hemodialysis catheter with stretchable functions

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