A shunt external device for hemodialysis

Abstract

The invention discloses a shunt external connection device for hemodialysis. The first bolt is separated from the first connecting plate, and then the first push plate is pulled down. The first push plate drives the first connecting rod downward in the first chute. Sliding, the first connecting rod drives the third baffle to move downward, the third baffle is separated from the first opening, and the first spacer and the second spacer are kept in a passageway; the second bolt is separated from the second connection plate, and then Pushing the second push plate to one side can keep the passage between the third spacer and the fourth spacer; when the device is not in use, push the first push plate upwards, the third baffle can seal the first opening, and use the first The bolt is fixed to realize the sealing and isolation of the first spacer and the second spacer; the second push plate is pushed to one side, the sixth baffle seals the third opening, and the second bolt is used to realize the third spacer Sealed and isolated from the fourth spacer, the sealed isolation of the device can be realized, and the device can be prevented from being polluted by bacteria.

Description

technical field [0001] The invention relates to the technical field of hemodialysis, in particular to an external shunt device for hemodialysis. Background technique [0002] Hemodialysis (HD) 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. [0003] Currently, heparin dialysis is prohibited for diseases with bleeding tendency and prolongation of coagulation time, hepatic or renal insufficiency, severe hypertension, cerebral hemorrhage, ulcer disease, pregnant women, threatened abortion, after surgery, hemophilia and postpartum, etc. It ...

AI Technical Summary

Problems solved by technology

[0003] Currently, heparin dialysis is prohibited for diseases with bleeding tendency and prolongation of coagulation time, hepatic or renal insufficiency, severe hypertension, cerebral hemorrhage, ulcer disease, pregnant women, threatened abortion, after surgery, hemophilia and postpartum, etc. It is unavoidable that there will be blood clots or impurities in the hemodialyzer. Once they enter the human body, there will be great risks. Currently, medical staff remove the liquid with blood clots by tapping or washing to ensure blood Dialysis is completed, but it will have an impact on the treatment effect

In the patent library, there is a patent "A kind of shunt external device for hemodialysis" (authorized announcement number CN208389072 U, authorized announcement date 2019.01.18), including: the first adapter (1), the second adapter (2) and The third connecting pipe (3), the upper and lower ends of the first connecting pipe (1) are respectively provided with a first threaded port (1-1) and a second threaded port (1-2) connected to the connection pipe of the dialyzer, and the One end of the second connecting pipe (2) and the third connecting pipe (3) are respectively vertically connected with the side wall on the first connecting pipe (1) through the threaded bayonet. The second connecting pipe (2) and the third connecting pipe (3) There is a waste liquid storage box (4) at the bottom of the middle part, and the other ends of the second connecting pipe (2) and the third connecting pipe (3) are connected to each other; however, the isolation effect of the device in the above patent is poor, and when not in use Or it is easy to contact with the outside air after use, pollute the internal space of the device, and affect the safety of patients

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