Dialysis automatic water replacing system

Abstract

The invention belongs to the field of automatic control, and particularly relates to a dialysis automatic water replacing system which comprises a dialysis tank, a dialysis bag lifting device, a sensor and an automatic water replacing control system. A water inlet with a water inlet valve is formed in the upper end of the dialysis tank, and a water outlet with a water outlet valve is formed in thebottom end of the dialysis tank. The dialysis bag lifting device comprises a fixing ring and an electric lifting rod, wherein a dialysis bag fixing clamp is arranged on the fixing ring, and the lowerend of the electric lifting rod is fixed to the fixing ring through a fixing rod. The sensor is arranged at the lower end of the fixing ring. The automatic water replacing control system comprises aninformation collecting module, an information processing module and an instruction executing module. Through the cooperation of the automatic water replacing control system and the sensor, the wateroutputting, the water inputting and the lifting of a dialysis bag are automatically controlled, the automatic replacing of water (or buffering liquid) is realized according to the conditions of impurities in the water or buffering liquid in the dialysis tank, the dialysis efficiency is improved, labor is saved, and meanwhile it is avoided that a dialysis semipermeable membrane is damaged by manualoperation.

Description

technical field [0001] The invention belongs to the field of automatic control, in particular to an automatic water exchange system for dialysis. Background technique [0002] Dialysis is a common means of purification. It is a separation and purification technique that separates small molecules from biological macromolecules through the principle of small molecules diffusing into water (or buffer) through a semipermeable membrane; in practice, in order to speed up dialysis To increase the speed and enhance the dialysis effect, it is necessary to replace the water or buffer solution outside the semi-permeable membrane; the current common method is to manually replace the water or buffer solution after a period of time, rather than based on the concentration of impurities in the water or buffer solution , the efficiency is not high, and it consumes manpower; the dialysis bag needs to be taken out when manpower is replaced, which is easy to damage the semipermeable membrane. ...

AI Technical Summary

Problems solved by technology

[0002] Dialysis is a common means of purification. It is a separation and purification technique that separates small molecules from biological macromolecules through the principle of small molecules diffusing into water (or buffer) through a semipermeable membrane; in practice, in order to speed up dialysis To increase the speed and enhance the dialysis effect, it is necessary to replace the water or buffer solution outside the semi-permeable membrane; the current common method is to manually replace the water or buffer solution after a period of time, rather than based on the concentration of impurities in the water or buffer solution , the efficiency is not high, and it consumes manpower; the dialysis bag needs to be taken out when manpower is replaced, which is easy to damage the semi-permeable membrane

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