Hollow fiber hemodialyzer

Abstract

The invention discloses a hollow fiber hemodialyzer. The hollow fiber hemodialyzer comprises a cylindrical shell, wherein a dialysate inlet and a dialysate outlet communicate with the left side and the right side of the cylindrical shell; annular diversion distribution rings are integrally shaped in the inner walls at two ends of the cylindrical shell; a plurality of hollow fiber pipes which are arranged in the cylindrical shell; encapsulating gum is bonded to the ends of the two ends of the hollow fiber pipes, and is bonded to the inner wall of the cylindrical shell, so that the fixed connection between the hollow fiber pipes and the cylindrical shell is further realized; a blood outlet and a blood inlet are integrally formed in the left end and the right end of the cylindrical shell; endcovers are in screw connection with the outer side of the blood outlet and the outer side of the blood inlet; blood communicating sockets are integrally formed in the centers of the end covers; a socket blocking cover covers each blood communicating socket; and a protective cap is integrally shaped on each socket blocking cover, and is in clamping connection to the corresponding end cover. Through the adoption of the hollow fiber hemodialyzer disclosed by the invention, the contact area of the dialysate and the surfaces of the hollow fiber pipes is effectively enlarged, the yarn breaking rateof the fiber yarn pipes is reduced, and the service life is prolonged.

Description

Technical field [0001] The invention belongs to the technical field of hemodialyzers, and specifically relates to a hollow fiber hemodialyzer. Background technique [0002] Hemodialyzer is abbreviated as dialyzer, which is a pipe and container for solute exchange between blood and dialysate, and is a key part of hemodialysis. The dialyzer is mainly composed of a supporting structure and a dialysis membrane. The latter is an important part of it. It is a semi-permeable membrane that only allows molecules smaller than the pore size of the membrane to pass through. The membrane materials are modified cellulose membranes and synthetic membranes, both of which are It can be made into a high-throughput dialyzer. [0003] Existing hemodialyzers are prone to concentration polarization during hemodialysis. The contact area between the dialysate and the surface of the fiber tube is small, the removal rate is low, and the fiber tube breakage rate is high. For this reason, We propose a hollo...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a hollow fiber hemodialyzer to solve the problem of concentration polarization and the contact area between the dialysate and the surface of the fiber filament tube when the existing hemodialyzer is proposed in the background technology for hemodialysis. Small size, low removal rate, and high fiber tube breakage rate

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