CN206482898U - A kind of hemodialysis system - Google Patents

Abstract

The utility model relates to the field of medical devices, in particular to a hemodialysis system, which comprises a hemodialysis fluid concentrate dispensing device. The degassing device, proportional flow control valve, heating device, dialysis machine, the dialysis waste discharge pipeline connected to the dialysis machine, the dialysis waste heat exchanger installed in the dialysis waste discharge pipeline and the The dialysis water connected to the proportional flow control valve enters the pipeline. The hemodialysate concentrate configuration device of this system can make the configured hemodialysate mixture flow fully in the stirring tank, and cooperate with the agitator to improve the agitation of the hemodialysate. In addition, the dialysis water is heated by the dialysis waste liquid to save the heat for heating the hemodialysis solution.

Description

A hemodialysis system

technical field

The utility model relates to the field of medical equipment, in particular to a hemodialysis system.

Background technique

In recent years, hemodialysis technology has been widely used and developed in the medical field. The range of hemodialysis treatment has become wider and wider. Many medical units have established large-scale hemodialysis centers with increasing workload. The work of preparing hemodialysis concentrate has become more and more a prominent problem in daily dialysis treatment. In the past, due to the small workload, when preparing the hemodialysis concentrate, it was usually to pour the hemodialysis concentrated dry powder into a bucket, add a certain amount of dialysis water, and then manually stir it repeatedly with sticks. There are many disadvantages in this operation. The amount of hemodialysis concentrate prepared is small, and generally only a few liters to tens of liters of hemodialysis concentrate can be prepared; the second is time-consuming and laborious. It takes a long time to prepare a hemodialysis concentrate, and it needs to be stirred repeatedly. Concentrated dry powder can be fully dissolved; the third is that the quality of the hemodialysis concentrate is poor, because it is artificially stirred, and the mouth of the liquid mixing barrel is open, which is easy to cause pollution. The hemodialysis concentrate is not stirred evenly, and the blood The ingredients are unevenly distributed in the liquid; fourth, it is troublesome to pack. The prepared hemodialysis concentrate is scooped out with a spoon, and then packed into small buckets through a funnel for dialysis, which is cumbersome and time-consuming. With the formation of large-scale hemodialysis centers and the continuous increase in workload, the volume of hemodialysis fluid to be prepared each time reaches hundreds of liters, or even more, requiring shorter time for dosing, better quality, and stronger safety .

In addition, there is residual heat in the hemodialysate, and it is necessary to heat up the partner’s solution during the preparation of the hemodialysate. If the residual heat in the hemodialysate can be utilized, energy can be saved.

Utility model content

The technical problem to be solved by the utility model is to overcome the deficiencies in the prior art and provide a hemodialysis system with good stirring effect and effective use of residual heat in the hemodialysis fluid.

The utility model is realized through the following technical solutions:

A hemodialysis system, comprising a hemodialysate concentrated liquid configuration device, a hemodialysate concentrated liquid inlet pipeline connected to the hemodialysate concentrated liquid configuration device at the front end, and a degassing device sequentially arranged on the hemodialysate concentrated liquid inlet pipeline , a proportional flow control valve, a heating device, a dialysis machine, a dialysis waste outlet pipeline connected to the dialysis machine, a dialysis waste heat exchanger installed in the dialysis waste outlet pipeline, and a dialysis water inlet connected to the proportional flow control valve piping;

The hemodialysate concentrate configuration device includes a stirring tank, an agitator arranged in the stirring tank, an internal circulation pipeline connected to the bottom and top of the stirring tank and a purified water inlet pipeline, wherein the stirring tank is provided with a double-layer The tank wall, the inner tank wall and the outer tank wall divide the stirring tank into an inner tank and an outer tank, the inner tank communicates with the bottom of the outer tank, and the top of the inner tank is provided with a feeding port; The agitator includes a rotating shaft extending into the bottom of the stirring tank, a rotating motor on the top of the rotating shaft and a plurality of stirring arms arranged in sequence along the length direction of the rotating shaft and driven by the rotating shaft; one end of the internal circulation pipeline is arranged There is a connecting pipe extending from the bottom of the stirring tank into the stirring tank. The height of the top of the connecting pipe is higher than the bottom of the inner tank wall. The inner wall of the inner tank wall is provided with a liquid level sensor. The height of the position sensor is the same as that of the top of the mouth of the connecting pipe. The other end of the internal circulation pipeline is provided with an annular liquid outlet pipe along the top of the inner wall of the outer tank wall. The annular liquid outlet pipe is evenly provided with multiple The liquid outlet nozzle on the inner wall of the tank wall makes the discharge liquid from the liquid outlet nozzle flow down the inner wall of the outer tank wall, and a circulation pump is also installed on the inner circulation pipeline; the water inlet of the purified water entering the pipeline is located on the inner layer Above the tank; a heater is also arranged in the stirring tank;

The hemodialysate concentrate outputted by the hemodialysate concentrate configuration device is passed into the hemodialysate inlet pipeline, and passes through the degassing device, proportional flow control valve, heating device and dialysis machine sequentially along the hemodialysate inlet pipeline;

The proportional flow control valve connects the dialysis water into the pipeline, and feeds the dialysis water;

One side channel of the dialysis waste heat exchanger passes the dialysis water into the pipeline, and the other side passes the dialysis waste discharged from the dialysis machine.

The internal circulation pipeline, the purified water inlet pipeline, and the dialysate inlet pipeline are all provided with valves.

The beneficial effects of the utility model are:

The hemodialysate concentrate dispensing device of this system can make the configured hemodialysate mixture flow fully in the stirring tank, cooperate with the agitator to improve the stirring effect of the hemodialysate, and in addition heat up the dialysis water through the dialysis waste liquid, saving Heat to heat the hemodialysate.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is a structural schematic diagram of a top view of the hemodialysate concentrate configuration device of the present invention.

In the figure: 1. Stirring tank, 2. Stirrer, 3. Internal circulation pipeline, 4. Dialysis waste liquid heat exchanger, 5. Purified water entering pipeline, 6. Outer tank wall, 7. Inner tank wall , 8. Rotating shaft, 9. Rotating motor, 10. Stirring arm, 11. Connecting pipe, 12. Liquid level sensor, 13. Ring liquid outlet pipe, 14. Liquid outlet nozzle, 15. Circulation pump, 16. Blood Dialysate concentrate configuration device, 17. Proportional flow control valve, 18. Degassing device, 19. Dialysis machine, 20. Heating device.

detailed description

In order to enable those skilled in the art to better understand the technical solution of the utility model, the utility model will be further described in detail below in conjunction with the accompanying drawings and preferred embodiments.

As shown in the figure, the utility model

A hemodialysis system, comprising a hemodialysate concentrate configuration device 16, the front end of which is connected to the hemodialysate concentrate inlet line of the hemodialysate concentrate configuration device, which is sequentially arranged at the degassing line of the hemodialysate concentrate inlet line Device 18, proportional flow control valve 17, heating device 20, dialysis machine 19, connected to the dialysis waste liquid export pipeline of the dialysis machine, the dialysis waste liquid heat exchanger 4 and the proportional flow control of the dialysis waste liquid discharge pipeline. The dialysis water connected by the valve enters the pipeline;

The hemodialysate concentrate configuration device includes a stirring tank 1, an agitator 2 arranged in the stirring tank, an internal circulation pipeline 3 connected to the bottom and top of the stirring tank and a purified water inlet pipeline 5, wherein,

The stirring tank is provided with double-layer tank walls, the inner tank wall 7 and the outer tank wall 6 divide the stirring tank into an inner tank and an outer tank, the inner tank communicates with the bottom of the outer tank, and the inner tank is connected to the bottom of the outer tank. There is a feeding port on the top of the layer tank;

The agitator includes a rotating shaft 8 extending into the bottom of the stirring tank, a rotating motor 9 on the top of the rotating shaft and a plurality of stirring arms 10 arranged in sequence along the length direction of the rotating shaft and driven by the rotating shaft to rotate;

One end of the internal circulation pipeline is provided with a connecting pipe 11 extending from the bottom of the stirring tank into the stirring tank, the top of the connecting pipe is higher than the bottom of the inner tank wall, and the inner wall of the inner tank wall A liquid level sensor 12 is provided, and the height of the liquid level sensor is the same as that of the top of the nozzle of the connecting pipe. The other end of the internal circulation pipeline is provided with an annular liquid outlet pipe 13 along the top of the inner wall of the outer tank wall. The annular liquid outlet pipe is evenly provided with a plurality of liquid outlet nozzles 14 close to the inner wall of the outer tank wall, so that the liquid discharged from the liquid outlet nozzles flows down along the inner wall of the outer tank wall, and a circulation pump 15 is also provided on the inner circulation pipeline;

The water inlet where the purified water enters the pipeline is located above the inner tank;

A heater is also provided in the stirring tank;

When preparing the hemodialysis concentrate, accurately weigh the components in the dialysis concentrated dry powder and put them into the mixing tank. The mixing tank is preferably equipped with a sealing cover, and the purified water is introduced into the pipeline, and the agitator is working, and the purified water is continuously injected. , when the liquid level in the mixing tank rises above the height of the top of the connecting pipe, the mixed liquid enters the internal circulation pipeline, and at the same time the liquid level sensor senses the liquid level height, when the liquid level reaches the top of the connecting pipe, the circulating pump is started, and the circulating pump drives the internal The circulation pipeline circulates, and the mixed liquid in the stirring tank flows back into the stirring tank along the inner wall of the outer tank through the liquid outlet nozzle 14 uniformly arranged on the annular liquid outlet pipe, so as to realize the internal circulation of the configuration liquid.

After the stirring is completed, the configured hemodialysate is output through the hemodialysate pipeline.

Before preparing dialysate, it is required to rinse and disinfect the mixing tank, inject cleaning water through the purified water inlet pipeline, and let the water flow down the inner wall of the outer tank through the internal circulation pipeline to realize flushing.

The arrangement of the outer tank and the inner tank cooperates with the circulation pipeline to circulate the mixed liquid in the inner tank to the outer tank and flow down along the outer tank wall to ensure that the mixed liquid is fully mixed in the outer tank and the inner tank , with the agitator can greatly improve the agitation effect of the hemodialysate.

On the one hand, the setting of the connecting pipe allows a considerable amount of mixed liquid in the mixing tank to enter the internal circulation pipeline, and at this time to start the circulating pump to prevent the circulating pump from idling, and on the other hand, to suck the mixed liquid above the inner tank wall , so that the liquid level in the inner tank wall drops relatively, and the mixed liquid in the outer tank enters the inner tank under the action of the pressure difference, which ensures that the mixed liquid is fully mixed in the outer tank and the inner tank, instead of the liquid level rising and falling synchronously. There is less convection of the mixed liquid between the inner and outer tanks.

The hemodialysate concentrate outputted by the hemodialysate concentrate configuration device is passed into the hemodialysate inlet pipeline, and passes through the degassing device, proportional flow control valve, heating device and dialysis machine sequentially along the hemodialysate inlet pipeline;

The proportional flow control valve connects the dialysis water into the pipeline, and feeds the dialysis water;

One side channel of the dialysis waste heat exchanger passes the dialysis water into the pipeline, and the other side passes the dialysis waste discharged from the dialysis machine.

After being degassed, the hemodialysate concentrate is mixed with the dialysis water through the proportional flow control valve to prepare the hemodialysate and enter the hemodialysis machine for dialysis after being heated by the heating device;

The dialysis waste liquid has a considerable part of waste heat when it is discharged, and the dialysis water enters the dialysis water in the pipeline through one channel of the dialysis waste heat exchanger, and the other side passes the dialysis waste liquid discharged from the dialysis machine. The dialysis water is heated to save energy.

The hemodialysate concentrate dispensing device of this system can make the configured hemodialysate mixture flow fully in the stirring tank, cooperate with the agitator to improve the stirring effect of the hemodialysate, and in addition heat up the dialysis water through the dialysis waste liquid, saving Heat to heat the hemodialysate.

The above is only a preferred embodiment of the utility model, it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the utility model, some improvements and modifications can also be made. Retouching should also be regarded as the scope of protection of the present utility model.

Claims (2)

1. A hemodialysis system, characterized in that it comprises a hemodialysate concentrate configuration device, the front end is connected to the hemodialysate concentrate inlet pipeline of the hemodialysate concentrate configuration device, which is successively arranged at the hemodialysate concentrate inlet The degassing device of the pipeline, the proportional flow control valve, the heating device, the dialysis machine, the dialysis waste liquid outlet pipeline connected to the dialysis machine, the dialysis waste liquid heat exchanger installed in the dialysis waste fluid outlet pipeline and the proportional flow control The dialysis water connected by the valve enters the pipeline; The hemodialysate concentrate configuration device includes a stirring tank, an agitator arranged in the stirring tank, an internal circulation pipeline connected to the bottom and top of the stirring tank and a purified water inlet pipeline, wherein the stirring tank is provided with a double-layer The tank wall, the inner tank wall and the outer tank wall divide the stirring tank into an inner tank and an outer tank, the inner tank communicates with the bottom of the outer tank, and the top of the inner tank is provided with a feeding port; The agitator includes a rotating shaft extending into the bottom of the stirring tank, a rotating motor on the top of the rotating shaft and a plurality of stirring arms arranged in sequence along the length direction of the rotating shaft and driven by the rotating shaft; one end of the internal circulation pipeline is arranged There is a connecting pipe extending from the bottom of the stirring tank into the stirring tank. The height of the top of the connecting pipe is higher than the bottom of the inner tank wall. The inner wall of the inner tank wall is provided with a liquid level sensor. The height of the position sensor is the same as that of the top of the mouth of the connecting pipe. The other end of the internal circulation pipeline is provided with an annular liquid outlet pipe along the top of the inner wall of the outer tank wall. The annular liquid outlet pipe is evenly provided with multiple The liquid outlet nozzle on the inner wall of the tank wall makes the discharge liquid from the liquid outlet nozzle flow down the inner wall of the outer tank wall, and a circulation pump is also installed on the inner circulation pipeline; the water inlet of the purified water entering the pipeline is located on the inner layer Above the tank; a heater is also arranged in the stirring tank; The hemodialysate concentrate outputted by the hemodialysate concentrate configuration device is passed into the hemodialysate inlet pipeline, and passes through the degassing device, proportional flow control valve, heating device and dialysis machine sequentially along the hemodialysate inlet pipeline; The proportional flow control valve connects the dialysis water into the pipeline, and feeds the dialysis water; One side channel of the dialysis waste heat exchanger passes the dialysis water into the pipeline, and the other side passes the dialysis waste discharged from the dialysis machine. 2 . The hemodialysis system according to claim 1 , wherein valves are provided in the internal circulation pipeline, the purified water inlet pipeline, and the dialysate inlet pipeline. 3 .