CN210750537U

CN210750537U - Peritoneal dialysis machine with flowing dialysate

Info

Publication number: CN210750537U
Application number: CN201921054057.4U
Authority: CN
Inventors: 袁毅强
Original assignee: Chongqing Hongshan Medical Equipment Co ltd
Current assignee: Chongqing Hongshan Medical Equipment Co ltd
Priority date: 2019-07-08
Filing date: 2019-07-08
Publication date: 2020-06-16
Anticipated expiration: 2029-07-08

Abstract

The utility model discloses a peritoneal dialysis machine with flowing dialysate.A dialysate storage bag is communicated with the liquid inlet end of a first dialysate pipe, and a first pump and a one-way valve are connected in series on the first dialysate pipe; the second dialysis liquid pipe is connected with a second pump in series, and the liquid outlet end of the second dialysis liquid pipe is communicated with a waste liquid collecting barrel. This case mainly relies on the cooperation of two dialysis liquid pipes and corresponding pump to aspirate, forms the pressure that the dialysis liquid pressure is less than blood in the peritonaeum capillary, forms osmotic pressure difference, takes out the moisture content in the blood outside the peritoneal membrane, forms accurate controllable ultrafiltration through the mode of weighing. Meanwhile, the dialysis solution is ensured to be fully contacted with peritoneal capillaries, and high-concentration toxin of the hemodialysis machine is permeated into the dialysis solution in a dispersion mode. The dialysis efficiency is high, and the dialysis effect is good; in addition, the dialysis liquid is in a continuous flowing state in the dialysis process, so that the polluted dialysis liquid can be pumped away in time, and the dialysis effect can be improved.

Description

Peritoneal dialysis machine with flowing dialysate

Technical Field

The utility model belongs to the peritoneal dialysis field especially relates to a peritoneal dialysis machine that dislysate flows.

Background

Peritoneal dialysis mainly utilizes peritoneal membrane to carry out dialysis, so that the peritoneal cavity is filled with dialysate to soak peritoneal capillaries, and utilizes the characteristics of semipermeable membranes of the peritoneal capillaries to disperse and transfer toxins such as creatinine, urea nitrogen and the like in blood from a high-concentration blood end to a low-concentration dialysate end. In order to remove the redundant water in the body, the high-concentration glucose is added into the dialyzate to form high water osmotic pressure, so that the redundant water in the blood is transferred into the abdominal cavity, and the aim of removing the redundant water which can not be removed by renal failure is fulfilled. After the traditional peritoneal dialysis machine sends the dialysate into the abdominal cavity, the dialysate is stopped in the abdominal cavity for a plurality of hours and then is discharged, and new dialysate is added again for dialysis, so that the aim of clearing toxin in the body is fulfilled for a plurality of times. The traditional way is to open a port in the abdominal cavity and insert the dialysis tube into the abdominal cavity. After the high-sugar dialysate enters the abdominal cavity through the dialysis tube, high-concentration creatinine, urea nitrogen and redundant water in blood are dispersed to low-concentration peritoneal dialysate under the action of pressure difference, so that waste materials such as creatinine, urea nitrogen and the like slowly permeate into the peritoneal dialysate, and the waste materials such as creatinine, urea nitrogen and the like are discharged through the dialysate after dialysis for a period of time.

The main problems of the prior art are as follows:

1. the dialysate is static and does not flow after entering the abdominal cavity, so that the used dialysate cannot be discharged in time, and the dialysis effect is influenced;

2. dialysis drainage (ultrafiltration) is completed by means of osmotic pressure difference formed by high glucose concentration difference of dialysate and body fluid, and only slowly permeates, and accurate weight of drainage cannot be controlled, so that dialysis efficiency and effect are not ideal;

3. in order to make dialysis proceed smoothly, the glucose concentration of the dialysate is relatively high, the glucose concentration is several times higher than that of the normal human body fluid, and the excessively high glucose has adverse effects on the maintenance of normal physiological functions of the human body, especially on diabetes patients, so that the safety and effectiveness of peritoneal dialysis are reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a peritoneal dialysis machine with mobile dialysate is provided, which aims to overcome the defects of insufficient dialysis effect, efficiency and safety in the prior art.

The technical scheme of the utility model as follows: a peritoneal dialysis machine with dialysate flow, characterized in that: the device comprises a weighing device (1) and a second pump (8), wherein the dialysate storage bag (2) and a waste liquid collecting barrel (3) can be placed on the weighing device (1), and the weighing device (1) is used for weighing the dialysate storage bag (2) and the waste liquid collecting barrel (3); the dialysate storage bag (2) is communicated with the liquid inlet end of a first dialysate pipe (4), and a first pump (5) and a one-way valve (6) are connected to the first dialysate pipe in series; the feed liquor end of first dislysate pipe (4) and the feed liquor end of second dislysate pipe (7) all communicate with an opening that human belly corresponds when using, and it has to establish ties on second dislysate pipe (7) second pump (8), and the feed liquor end of second dislysate pipe (7) with waste liquid collecting vessel (3) intercommunication.

In the scheme, fresh finished dialysate which is not used is filled in the dialysate storage bag (2), and the concentration of glucose in the finished dialysate is consistent with that in human body fluid. When in use, the liquid outlet end of the first dialysate tube (4) is communicated with one corresponding opening of the abdomen of a human body, and the liquid outlet end of the first dialysate tube (4) penetrates through the abdominal cavity membrane; the liquid inlet end of the second dialysis liquid pipe (7) is communicated with an opening corresponding to the abdomen of the human body, and the liquid inlet end of the second dialysis liquid pipe (7) also penetrates through the abdominal cavity. Fresh finished dialysate is injected into the inner side of the peritoneal membrane under the action of the first pump (5), meanwhile, the second dialysate tube (7) pumps the dialysate outwards under the action of the second pump (8), so that through the mutual matching of the first dialysate tube (4) and the second dialysate tube (7), if the outlet water is larger than the inlet water, the pressure of the dialysate in the peritoneal cavity is reduced, the pressure of the body fluid of the intraperitoneal capillary vessels is larger than the pressure of the dialysate in the peritoneal cavity, the body fluid in the capillary vessels can permeate out of the peritoneal membrane, and the toxin in the blood can be taken away by the outflow of the body fluid. Meanwhile, the toxin in the capillary vessel can be subjected to dispersion exchange with the dialysate in the abdominal cavity through the peritoneum, so that the toxin in the blood can permeate into the dialysate. The dialysis liquid continuously flows, and the old liquid with toxin is continuously taken away, and simultaneously, the fresh liquid without toxin is also taken in. The waste liquid is pumped out of the human body by the second pump and enters the waste liquid collecting barrel (3). Compared with the prior art which relies on glucose concentration difference for slow dialysis, the scheme mainly relies on the matching of two dialysate tubes and corresponding pumps for suction, forcibly pumps water and toxin in body fluid out of an abdominal membrane and further out of a human body, and has high dialysis efficiency and good dialysis effect; in addition, the dialysis liquid is in a continuous flowing state in the dialysis process, so that the polluted dialysis liquid can be pumped away in time, and the dialysis effect can be improved. In addition, because the dialysis is not carried out by the sugar concentration difference, the glucose concentration in the dialysate used by the dialysis machine is consistent with the glucose concentration in the body fluid of the human body, so that the normal physiological operation of the human body can be ensured, and the dialysis machine is particularly beneficial to diabetic patients.

Preferably, a pressure detection sensor (9) is connected to a position, close to the liquid outlet end, of the first dialysate tube (4), detection data of the pressure detection sensor is fed back to the PLC (10), and the PLC (10) is used for controlling the working states of the first pump (5) and the second pump (8).

By adopting the structure, the PLC (10) is used for controlling the working states of the first pump (5) and the second pump (8), namely controlling the rotating speeds of the first pump (5) and the second pump (8) and the like, so that the liquid inlet speed and the liquid outlet speed are controlled according to the detection value of the pressure detection sensor (9), and negative feedback is realized, so that the pressure in the abdominal cavity of the human body is kept constant.

Preferably, the first dialysate pipe (4) is connected with an ozone generating device (11) near the liquid outlet end. The ozone generating device (11) is used for sterilizing the abdominal cavity and the peritoneal dialysis pipeline.

In the scheme, the weighing device (1) adopts an electronic scale. The real-time ultrafiltration volume (body water displacement) is accurately detected through the change of the weighing weight, a weight signal is fed back to a computer (PLC), the linkage of a liquid inlet pump and a liquid outlet pump is controlled through the computer, and a control device achieves the required target ultrafiltration volume.

Preferably, the first pump (5) and the second pump (8) are peristaltic pumps.

Has the advantages that: according to the novel peritoneal dialysis device, the two dialysate tubes and the corresponding pump are mainly matched for pumping to form negative pressure, so that water and toxin in peritoneal capillaries are forced to permeate into peritoneal membranes and further pumped out of a human body, the renal failure patient is accurately controlled to remove redundant water of the body, the defect that the previous peritoneal dialysis device cannot control removal of the body water is overcome, and the novel peritoneal dialysis device is high in dialysis efficiency and good in dialysis effect; in addition, the dialyzate is in a continuous flowing state in the dialysis process, so that the dialyzate after toxin is dialyzed out can be pumped away in time, and fresh dialyzate is supplemented in time, so that the dialysis effect can be improved. In addition, because the dialysis is not carried out by concentration difference, the concentration of glucose in the dialysate used by the dialysis machine is consistent with that of glucose in the body fluid of a human body, so that the normal physiological operation of the human body can be ensured, and the dialysis machine is particularly beneficial to diabetic patients.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Detailed Description

The invention will be further explained with reference to the following figures and examples:

as shown in fig. 1, a peritoneal dialysis machine with flowing dialysate comprises a weighing device 1 and a second pump 8, wherein a dialysate storage bag 2 and a waste liquid collecting barrel 3 can be placed on the weighing device 1, and the weighing device 1 weighs the dialysate storage bag 2 and the waste liquid collecting barrel 3. The change of the weighing capacity is used for judging how much water is ultrafiltered out of the body. In this case, the weighing device 1 is an electronic scale, and the same heaters 20 are installed on the two trays of the electronic scale, and the heaters are purchased from outside, and the purpose of the heaters is to heat the dialysate in the dialysate storage bag 2 to match the temperature in the human body. In the present case, the glucose concentration of the dialysate in the dialysate storage bag 2 is consistent with the glucose concentration of the body fluid in the human body.

The feed liquor end intercommunication of dislysate storage bag 2 and first dislysate pipe 4, it has first pump 5 and check valve 6 to establish ties on this first dislysate pipe 4, and the effect of check valve 6 is the prevention dislysate refluence. The first pump 5 and the second pump 8 are peristaltic pumps. The play liquid end of first dislysate pipe 4 and the feed liquor end of second dislysate pipe 7 all communicate with an opening that human belly corresponds when using, and it has second pump 8 to establish ties on the second dislysate pipe 7, and the play liquid end and the waste liquid collecting vessel 3 intercommunication of second dislysate pipe 7. The position that first dislysate liquid pipe 4 is close to the play liquid end is connected with outsourcing pressure detection sensor 9, and PLC10 is fed back to this pressure detection sensor's detection data, and PLC is used for controlling the operating condition of first pump 5 and second pump 8. First dislysate pipe 4 is close to the position of going out liquid end and is connected with outsourcing ozone generating device 11, and ozone generating device 11's effect is the production ozone to disinfect abdominal cavity and dislysate pipeline after the dialysis to prevent that the bacterium from polluting the dislysate, prevent that the patient from getting peritonitis.

The working principle of the scheme is as follows:

fresh finished dialysate is filled in the dialysate storage bag 2, and the concentration of glucose in the finished dialysate is consistent with that in human body fluid. When in use, the liquid outlet end of the first dialysate tube 4 is communicated with a corresponding opening of the abdomen of a human body, and the liquid outlet end of the first dialysate tube 4 penetrates through the abdominal cavity membrane; the liquid inlet end of the second dialysate tube 7 is communicated with an opening corresponding to the abdomen of the human body, and the liquid inlet end of the second dialysate tube 7 also penetrates through the abdominal cavity. Fresh finished product dialysate is injected into the inner side of the peritoneal membrane under the action of the first pump 5, and meanwhile, the second dialysate tube 7 pumps the dialysate outwards under the action of the second pump 8, so that the pressure of peritoneal dialysis fluid is smaller than the pressure of blood in peritoneal capillaries through the mutual matching of the first dialysate tube 4 and the second dialysate tube 7, negative pressure is formed, and water and toxin in the peritoneal capillaries permeate out of the peritoneal membrane and are pumped out of a human body. The ultrafiltration volume is accurately controlled by means of weighing. Meanwhile, the surface of the peritoneal capillary vessel and the peritoneal dialysis solution are also fully soaked, and high-concentration toxin in blood is dispersed and transferred to low-concentration toxin in the dialysis solution by utilizing the principle of a peritoneal capillary vessel semipermeable membrane. The dialysate enters the waste liquid collecting vessel 3 through the abdominal cavity under the push of the pump. And the detection value of the pressure detection sensor 9 is fed back to the PLC, and the PLC controls the working states of the first pump 5 and the second pump 8 through program programming, namely controls the rotating speeds of the first pump 5 and the second pump 8 and the like, so that negative feedback is realized, and the pressure in the abdominal cavity of the human body is kept constant. In addition, the ozone generating device 11 generates ozone for sterilizing the abdominal cavity and the dialysate line after dialysis.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A peritoneal dialysis machine with dialysate flow, characterized in that: the device comprises a weighing device (1) and a second pump (8), wherein the dialysate storage bag (2) and a waste liquid collecting barrel (3) can be placed on the weighing device (1), and the weighing device (1) is used for weighing the dialysate storage bag (2) and the waste liquid collecting barrel (3); the dialysate storage bag (2) is communicated with the liquid inlet end of a first dialysate pipe (4), and a first pump (5) and a one-way valve (6) are connected to the first dialysate pipe in series; the feed liquor end of first dislysate pipe (4) and the feed liquor end of second dislysate pipe (7) all communicate with an opening that human belly corresponds when using, and it has to establish ties on second dislysate pipe (7) second pump (8), and the feed liquor end of second dislysate pipe (7) with waste liquid collecting vessel (3) intercommunication.

2. The dialysate-flowing peritoneal dialysis machine of claim 1, wherein: the position that first dislysate liquid pipe (4) are close to out the liquid end is connected with pressure detection sensor (9), and PLC (10) are fed back to this pressure detection sensor's detection data, and PLC (10) are used for controlling the operating condition of first pump (5) and second pump (8).

3. The dialysate-flowing peritoneal dialysis machine of claim 1, wherein: the first dialysate pipe (4) is connected with an ozone generating device (11) at the position close to the liquid outlet end.

4. The dialysate-flowing peritoneal dialysis machine of claim 1, wherein: the weighing device (1) adopts an electronic scale.

5. A peritoneal dialysis machine with dialysate flow according to any of claims 1-4, characterized by: the first pump (5) and the second pump (8) adopt peristaltic pumps.