Shunting external device for hemodialysis

Abstract

The invention discloses a shunting external device for hemodialysis. A first bolt is separated from a first connecting plate, then a first push plate is pulled downwards, the first push plate drives the first connecting rod to slide downwards in the first sliding groove, the first connecting rod drives a third baffle to move downwards, the third baffle is separated from a first opening, and the first isolation piece and the second isolation piece are kept closed; the second bolt is separated from a second connecting plate, and then the second push plate is pushed to one side, so that the thirdisolation piece and the fourth isolation piece can be kept closed. When the device is not used, the first push plate is pushed upwards, the third baffle can seal the first opening and is fixed through a first bolt, and sealing isolation of the first isolation piece and the second isolation piece can be achieved; the second push plate is pushed towards one side, a sixth baffle seals a third opening and is fixed through a second bolt, sealing isolation of the third isolation piece and the fourth isolation piece can be achieved, sealing isolation of the device can be achieved, and the device canbe 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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