CN214843419U - Simulation detection system for dehydration amount of hemodialysis machine - Google Patents
Simulation detection system for dehydration amount of hemodialysis machine Download PDFInfo
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- CN214843419U CN214843419U CN202121343563.2U CN202121343563U CN214843419U CN 214843419 U CN214843419 U CN 214843419U CN 202121343563 U CN202121343563 U CN 202121343563U CN 214843419 U CN214843419 U CN 214843419U
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Abstract
The utility model discloses a hemodialysis machine dehydration volume's simulation detecting system, concretely relates to hemodialysis machine detects technical field. A system for analog detection of the amount of dehydration in a hemodialysis machine, comprising: the hemodialysis machine, the simulation dialyzer and the detection component; the simulation dialysis appearance is including the inside water tank that is provided with the diaphragm, and the diaphragm separates the water tank for first solution district and second solution district, first solution district and second solution district are provided with two openings respectively, be provided with the dislysate export on the hemodialysis machine, the waste liquid entry, blood export and blood entry, dislysate export and waste liquid entry are respectively through two opening intercommunications in connecting tube and first solution district, two opening intercommunications in blood export and blood entry respectively through connecting tube and second solution district, the determine module sets up on the connecting tube. The utility model discloses can break away from the actual dehydration volume that the patient detected hemodialysis machine, avoid influencing the detection of dehydration volume because of treating complex factors such as patient metabolism, diet.
Description
Technical Field
The utility model relates to a hemodialysis machine detects technical field, concretely relates to simulation detecting system of hemodialysis machine dehydration volume.
Background
Hemodialysis is one of effective treatment modes for patients with renal diseases such as renal failure patients, and creatine, urea, free water and other wastes in patient blood are removed from the body of the patients in an extracorporeal removal mode to replace the excretion function of normal kidneys so as to achieve the treatment effect. The hemodialysis machine is indispensable equipment of hemodialysis, and the dehydration volume of its during operation is one of the important index that medical personnel and patient concern, because the influence of complex factors such as patient's diet, metabolism, the dehydration volume of the patient after the treatment is accomplished each time can not accurate measurement, therefore regularly check the accuracy of hemodialysis machine dehydration volume and then seem to be very important. At present, when a hemodialysis machine is used for treating patients, the flow of an ultrafiltration pump in the hemodialysis machine is usually used as an actual dehydration amount, but due to the influence of complex factors such as metabolism and diet of a patient to be treated, the dehydration amount of the patient after each treatment cannot be accurately measured, so that the accuracy of regularly detecting the dehydration amount of the hemodialysis machine is particularly important. Due to the defects of the existing measuring method and measuring tool, the detection working process of the dehydration amount of the hemodialysis machine is also complicated, and the problems of inaccurate measurement and the like occur.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a hemodialysis machine dehydration volume's simulation detecting system to solve current hemodialysis machine dehydration volume and measure unsafe problem.
The utility model provides an above-mentioned technical problem's technical scheme as follows:
a system for analog detection of the amount of dehydration in a hemodialysis machine, comprising: the hemodialysis machine, the simulation dialyzer and the detection component; the simulation dialysis appearance is including the inside water tank that is provided with the diaphragm, and the diaphragm separates the water tank for first solution district and second solution district, first solution district and second solution district are provided with two openings respectively, be provided with the dislysate export on the hemodialysis machine, the waste liquid entry, blood export and blood entry, dislysate export and waste liquid entry are respectively through two opening intercommunications in connecting tube and first solution district, two opening intercommunications in blood export and blood entry respectively through connecting tube and second solution district, the determine module sets up on the connecting tube.
The beneficial effects of adopting the above technical scheme are: the simulation dialyzer is divided into a first solution area and a second solution area by a diaphragm, so that the dialysate and the simulation solution can be subjected to substance exchange in the simulation dialyzer conveniently, and the flow difference of each outlet of the first solution area and the second solution area is obtained; first solution district and second solution district do not are provided with two openings, hemodialysis machine includes the dislysate export, the waste liquid entry, blood export and blood entry, dislysate export and waste liquid entry on the hemodialysis machine are connected through two openings in connecting tube and first solution district respectively, form the dislysate return circuit, for the simulation liquid carries out the material exchange in the simulation dialysis appearance and provides the exchange goods and materials, the blood export and the blood entry of hemodialysis machine are connected through two openings in connecting tube and second solution district respectively, form the simulation liquid return circuit, simulate actual blood return circuit. Dialysate circuit and simulation liquid circuit are separated by the diaphragm inside the simulation dialysis appearance, and the dialysis process of the actual hemodialysis ware of simulation sets up the determine module on the connecting tube simultaneously, can detect the flow of each export and entry to obtain the dehydration volume of hemodialysis machine, avoid influencing the detection of dehydration volume because of treating complex factors such as patient's metabolism, diet.
The simulation detection process of the dehydration amount of the hemodialysis machine comprises the following steps: firstly, a dialysate outlet and a waste liquid inlet of a hemodialysis machine are respectively connected with two openings of a first solution area of a simulation dialyzer through connecting pipelines; then, a blood outlet and a blood inlet of the hemodialysis machine are respectively connected with two openings of a second solution area of the simulation dialyzer through connecting pipelines; then installing a detection assembly on each connecting pipeline, and monitoring and recording the flow of each connecting pipeline; and finally obtaining an actual measured value of the dehydration amount of the hemodialysis machine.
Furthermore, an ultrafiltration pump is arranged in the hemodialysis machine and is communicated with the waste liquid inlet.
The beneficial effects of adopting the above technical scheme are: providing power for the flow of dialysate in a dialysate circuit by providing an ultrafiltration pump at a waste fluid inlet of the hemodialysis machine; meanwhile, the pressure intensities of the first solution area and the second solution area are changed, so that transmembrane pressure difference is formed on two sides of the diaphragm, substances on two sides of the diaphragm are promoted to exchange and permeate, the flow of a dialysate outlet and the flow of a waste liquid inlet are changed, and finally the detection component monitors the dehydration value of the hemodialysis machine.
Furthermore, a blood pump is arranged in the hemodialysis machine, and an inlet and an outlet of the blood pump are respectively communicated with the blood outlet and the blood inlet.
The beneficial effects of adopting the above technical scheme are: the blood pump is arranged between the blood outlet and the blood inlet, so that power can be provided for the simulated liquid flow of the simulated liquid loop; meanwhile, a stable transmembrane pressure difference is formed on the two sides of the membrane by matching with the ultrafiltration pump, so that substances in the solution on the two sides of the membrane are exchanged, and after the exchange is finished, the simulation solution is sent back to the hemodialysis machine again to achieve the effect of backflow.
Further, the flow direction of the liquid in the first solution zone is opposite to the flow direction of the liquid in the second solution zone.
The beneficial effects of adopting the above technical scheme are: by arranging the solutions in the first solution zone and the second solution zone to flow in opposite directions, the exchange of substances between the dialysis liquid and the simulated liquid inside the simulated dialyzer can be facilitated to be performed sufficiently.
Further, the separator is a semipermeable membrane.
The beneficial effects of adopting the above technical scheme are: divide into two regions with the water tank internal partitioning through the pellicle, can guarantee to be located the ion diffusion of the dislysate in the first solution district and go into in the simulated liquid, the hydrone in the simulated liquid in second solution district can permeate under the effect of the ultrafiltration pump in the dislysate return circuit simultaneously and enter the dislysate, the simulated liquid reaches the purpose of losing water, and then flow difference appears in dislysate return circuit and simulated liquid return circuit to detection assembly obtains the numerical value of hemodialysis machine dehydration volume.
Further, above-mentioned detection subassembly includes flow sensor, power module, display module and single chip module, and flow sensor sets up on the connecting tube, and power module, display module and single chip module all set up on the surface of water tank, and power module is respectively with display module, single chip module and flow sensor communication connection, and single chip module is respectively with display module and flow sensor communication connection simultaneously.
The beneficial effects of adopting the above technical scheme are: the flow sensor of the detection assembly is arranged on the connecting pipeline, so that the flow of the connecting pipeline can be monitored and recorded in real time conveniently; the power supply module is respectively in communication connection with the display module, the single chip microcomputer module and the flow sensor, so that power can be conveniently supplied for normal work of the single chip microcomputer module, the display module and the flow sensor; and the singlechip module is respectively in communication connection with the flow sensor and the display module, so that data recorded by monitoring of the flow sensor can be transmitted to the singlechip module to be processed and calculated to obtain the dehydration amount of the hemodialysis machine, and the obtained dehydration amount value is transmitted to the display module to be displayed, so that an operator can visually obtain the dehydration amount value of the hemodialysis machine, and the influence of factors such as artificial reading and calculation on the dehydration amount measurement result of the hemodialysis machine is avoided.
Furthermore, the connecting pipelines communicated with the first solution area are respectively provided with a flow sensor, or the connecting pipelines communicated with the second solution area are respectively provided with a flow sensor.
The beneficial effects of adopting the above technical scheme are: through setting up flow sensor on the connecting tube who is connected with two openings on first solution district or the second solution district, be convenient for monitor the flow of the analog fluid circuit's of the dialysate circuit in first solution district or the second solution district the business turn over end, and then obtain the accurate actual value of hemodialysis machine dehydration volume.
The utility model discloses following beneficial effect has:
1. the utility model discloses simple structure, it is convenient to measure, can carry out real-time supervision to the dehydration volume of hemodialysis machine, solves the inaccurate and loaded down with trivial details scheduling problem of step of current measurement.
2. The utility model discloses a flow sensor can carry out real-time supervision to the flow of each export and entry to in time send data transfer to the singlechip and handle, thereby obtain the real-time dehydration volume of hemodialysis machine, and show its numerical value on display module, be convenient for monitor personnel's the data of reading and contrast with hemodialysis machine standard value.
Drawings
Fig. 1 is a schematic view of the system for detecting the dehydration amount of the hemodialysis machine of the present invention.
In the figure: 1-a hemodialysis machine; 2-simulating a dialysis machine; 3-a detection component; 11-dialysate outlet; 12-a waste liquid inlet; 13-a blood outlet; 14-blood inlet; 15-an ultrafiltration pump; 16-a blood pump; 21-a water tank; 22-a septum; 23-opening; 211-first solution zone; 212-second solution zone; 31-a flow sensor; 32-a power supply module; 33-a display module; 34-single chip microcomputer module.
Detailed Description
The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.
Examples
Referring to fig. 1, a system for simulating and detecting the dehydration amount of a hemodialysis machine comprises a hemodialysis machine 1, a detection assembly 3 and a simulation dialyzer 2, wherein the simulation dialyzer 2 comprises a water tank 21 provided with a semipermeable membrane diaphragm 22 and divides the water tank 21 into a first solution area 211 and a second solution area 212, and the first solution area 211 and the second solution area 212 are respectively provided with two openings 23; the hemodialysis machine 1 comprises a dialysate outlet 11, a waste liquid inlet 12, a blood outlet 13 and a blood inlet 14, wherein the dialysate outlet 11 and the waste liquid outlet 12 are respectively connected with two openings 23 of a first solution area 211 through connecting pipelines to form a dialysate circuit; the blood outlet 13 and the blood inlet 14 are respectively connected with the two openings 23 of the second solution area 212 through connecting pipelines to form an analog liquid loop; the inflow and outflow ends of the dialysate circuit and the simulated fluid circuit into/out of the simulated dialyzer 2 are connected to the sensing assembly 3. By dividing the simulated dialyzer 2 into a first solution area 211 and a second solution area 212, the dialysate and the simulated solution are divided inside the simulated dialyzer 2, so that the exchange of substances inside the simulated dialyzer 2 is facilitated, and the flow difference of the two openings 23 on the first solution area 211 and the second solution area 212 is obtained; and carry out the material exchange with dislysate return circuit and simulation liquid return circuit in simulation 2 insides of dialysis appearance to the detection component 3 that sets up on each connecting tube is convenient for monitor and the record the poor flow in dislysate return circuit and the simulation liquid return circuit, and then obtains the dehydration volume of hemodialysis machine.
The detection component 3 comprises a flow sensor 31, a power supply module 32, a display module 33 and a singlechip module 34; the power module 32 is a storage battery, the display module 33 is a display screen, the model of a main control chip in the singlechip module 34 is STM32F407VET6, and the flow sensors 31 are respectively arranged at the inlets and outlets of the dialysate circuit and the blood circuit and are used for monitoring and recording the flow of inflow and outflow of the simulated dialysis apparatus; the power module 32 provides power for the normal work of the flow sensor 31, the display module 33 and the single chip microcomputer module 34, the power module 32, the display module 33 and the single chip microcomputer module 34 are arranged on the surface of the water tank 21, meanwhile, the modules are in communication connection, flow data obtained by monitoring the flow sensor 31 on each connecting pipeline are conveniently transmitted to the single chip microcomputer module 34, then the data of the flow sensor 31 are processed and calculated, finally the obtained data are transmitted to the display module 33, and the dehydration amount of the hemodialysis machine 1 is intuitively obtained. The flow sensor 31 of the detection component 3 detects the flow difference between the dialysate circuit and the analog liquid circuit, and then transmits the data to the singlechip module 34 for calculation, thereby greatly reducing the error caused by manual reading recalculation and further influencing the accuracy of the dehydration measurement value of the hemodialysis machine; moreover, the simulation detection process of the dehydration amount of the hemodialysis machine is automatically completed, the manpower and the financial resources are greatly reduced, and meanwhile, the detection steps of the dehydration amount are simplified. In other embodiments of this embodiment, the flow sensor 31 may be provided only in the dialysate circuit, or only in the analog fluid circuit.
The inside of the hemodialysis machine 1 is provided with an ultrafiltration pump 15 at the waste liquid inlet 12, and the ultrafiltration pump 15 is connected with an opening 23 of the first solution area 211 through a connecting pipeline, the ultrafiltration pump 15 is arranged in the dialysate circuit, so that power is provided for the flow of dialysate, the pressure of the first solution area 211 and the pressure of the second solution area 212 are changed at the same time, a transmembrane pressure is formed at two sides of the membrane, the exchange and permeation of substances at two sides of the membrane are promoted, the flow of the dialysate outlet 11 and the waste liquid inlet 12 are changed, and the dehydration amount of the hemodialysis machine 1 is finally displayed on the display module 33 through the monitoring of the flow sensor 31 and the calculation processing of the singlechip module 34. A blood pump 16 is arranged in the hemodialysis machine 1 between the blood outlet 13 and the blood inlet 14, the blood pump 16 is connected with an opening 23 of the second solution area 212 through a connecting pipeline, the blood pump 16 is arranged in the simulation liquid loop, on one hand, the simulation liquid can stably flow in the simulation loop, on the other hand, the blood pump 16 is also arranged in the simulation liquid loop, in order to form a stable transmembrane pressure difference in the water tank 21 in cooperation with the ultrafiltration pump 15, so that the dialysate and the simulation liquid on two sides of the diaphragm 22 are subjected to material exchange under the action of the pressure difference, and after the flow sensor 31 detects the obtained flow, the flow is transmitted to the singlechip module 34 for processing, and the dehydration amount of the hemodialysis machine 1 is obtained. Meanwhile, in order to ensure that substances in the dialysate and the simulation fluid can be fully exchanged and permeated, the flow directions of the dialysate circuit and the simulation fluid circuit inside the simulation dialyzer need to be ensured to be opposite.
The detection process of the dehydration amount of the hemodialysis machine comprises the following steps: (1) respectively connecting a dialysate outlet and a waste liquid inlet of the hemodialysis machine with two openings of the first solution area through connecting pipelines; (2) connecting a blood outlet and a blood inlet of the hemodialysis machine with two openings of the second solution area through connecting pipelines respectively, and enabling the flow directions of the dialysate and the simulation solution on two sides of a diaphragm of the water tank to be opposite; (3) the flow sensor records the flow of each port, and then transmits each data to the singlechip, and the dehydration amount of the hemodialysis machine is obtained through calculation. (dehydration amount-waste liquid flow-dialysate inlet flow, or dehydration amount-simulated liquid inflow-simulated liquid outflow)
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (7)
1. A hemodialysis machine dehydration amount simulation detection system is characterized by comprising: the hemodialysis machine (1), the simulation dialyzer (2) and the detection component (3); the simulated dialysis apparatus (2) comprises a water tank (21) which is internally provided with a diaphragm (22), and the diaphragm (22) divides the tank (21) into a first solution zone (211) and a second solution zone (212), the first solution zone (211) and the second solution zone (212) are provided with two openings (23) respectively, the hemodialysis machine (1) is provided with a dialysate outlet (11), a waste liquid inlet (12), a blood outlet (13) and a blood inlet (14), dialysate outlet (11) and waste liquid entry (12) respectively through the connecting tube with two openings (23) of first solution district (211) intercommunication, blood export (13) and blood entry (14) respectively through the connecting tube with two openings (23) of second solution district (212) intercommunication, determine module (3) set up on the connecting tube.
2. The system of claim 1, wherein the system further comprises: hemodialysis machine (1) inside is provided with ultrafiltration pump (15), ultrafiltration pump (15) with waste liquid entry (12) intercommunication.
3. The system of claim 2, wherein the system further comprises: a blood pump (16) is further arranged inside the hemodialysis machine (1), and an inlet and an outlet of the blood pump (16) are respectively communicated with the blood outlet (13) and the blood inlet (14).
4. The system of claim 1, wherein the system further comprises: the flow direction of the liquid in the first solution area (211) is opposite to the flow direction of the liquid in the second solution area (212).
5. The system of claim 1, wherein the system further comprises: the diaphragm (22) is a semi-permeable membrane.
6. The system for analog detection of dehydration amount of hemodialysis machine according to any of claims 1 to 5, wherein: the detection assembly (3) comprises a flow sensor (31), a power module (32), a display module (33) and a single chip microcomputer module (34); flow sensor (31) sets up on the connecting tube, power module (32) display module (33) with single chip module (34) all set up the surface of water tank (21), power module (32) respectively with display module (33) single chip module (34) with flow sensor (31) communication connection, simultaneously single chip module (34) respectively with display module (33) with flow sensor (31) communication connection.
7. The system of claim 6, wherein the system further comprises: the flow sensors (31) are respectively arranged on the connecting pipelines communicated with the first solution area (211), or the flow sensors (31) are respectively arranged on the connecting pipelines communicated with the second solution area (212).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121343563.2U CN214843419U (en) | 2021-06-16 | 2021-06-16 | Simulation detection system for dehydration amount of hemodialysis machine |
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| CN202121343563.2U CN214843419U (en) | 2021-06-16 | 2021-06-16 | Simulation detection system for dehydration amount of hemodialysis machine |
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