CN2258768Y - Unidirectional circulation type hemodialysis machine - Google Patents

Abstract

The utility model relates to a unidirectional circulation type hemodialysis machine, which is suitable for treating the diseases of acute and chronic renal failure, uremia, multiple organ failure, medicine, toxicant poisoning, etc. The dialysis machine realizes the one-way circulation of the dialysate through a liquid pump, a dialysate pipe and a high and a low boxes to make the dialysate repeated, and the blood carries out the dialysis to enhance the utilization rate of the dialysate. Because the utility model is provided with a monitoring device, a displaying device, a flow blocking device and an alarming device, the utility model has safe use and stops the medical fault from occurring. The back part of the dialysis machine is provided with a UPS power supply and a main machine power supply, so the dialysis machine still continues working when the electricity is cut off. The utility model has the advantages of small size, low price and convenient movement, and the main machine can also be carried out singly to treat.

Description

Unidirectional circulating haemodialysis control unit

This utility model relates to a kind of medical apparatus and instruments, especially unidirectional circulating haemodialysis control unit.

Present conventional formula haemodialysis control unit is the import type, and domestic still do not have sophisticated substitute products.Conventional formula haemodialysis control unit has following shortcoming: 1. cost an arm and a leg; 2. must supporting dedicated water blood processor and than side liquid mixing system; 3. must rely on water source and power supply, cut off the water, have a power failure and all can not work; 4. dialysis solution is only done the single filtration use, and utilization rate is not high; 5. system and device complexity, fault rate height, not easy care; 6. necessary fixed in position, the enforcement first aid of can't paying a home visit.

At above situation, also develop both at home and abroad and Wearable, low-grade hemodialysis system such as portable, but still imperfection, particularly lack safety precautions, therefore can't popularize, promote.Chinese patent 92101842.8 discloses a kind of " portable artificial kidney machine ", and it has overcome the shortcoming of conventional hemodialysis (CHD) machine to a certain extent.For example can not rely on the water source, removable, the two-way repeatedly circulation of dialysis solution, utilization rate improve.But the shortcoming of this invention also clearly: 1. need manually frequently to renew the liquid bag, operation inconvenience causes maloperation easily, and dialysis procedure is actually time-out often; 2. complete machine becomes complicated because of the mechanical lifting switch, and bulky, heaviness, reliability are not high; 3. constantly move because of promoting switch, the dialysis solution pipeline easily takes place twine, hang, even situation such as break.Constantly change owing to retain liquid measure in pipeline weight that hangs and the pipe, the accuracy of measuring of indexs such as ultrafiltration volume and flow is very poor; 4. do not have the monitoring of the blood of leakage and bubble, this class necessary security measure of reporting to the police, patient's safety can not get guaranteeing; 5. motion is exposed fully, thereby problems such as lubricated, anticorrosion, antirust, health can't solve; 6. can only manually-operated when having a power failure and can not monitor, control, warning etc.; 7. anticoagulant such as heparin injects that mode is actual can't to be realized.

The purpose of this utility model provides a kind of unidirectional circulating haemodialysis control unit, its repeated use dialysis solution not only capable of circulation, and do not need huge lifting exchange mechanism; Not only have monitoring, control, warning function, and uninterrupted power source is provided, still can operate as normal when guaranteeing to have a power failure.

The purpose of this utility model is achieved in that former hemodialysis structure---dialysis solution pipe and blood tube all are equipped with in the top and bottom at dialyser in maintenance; blood conduit end at the input dialyser is equipped with the anticoagulant syringe; blood tube tail end at the output dialyser is equipped with on the basis of venous pressure monitor, bubble trap, bubble monitor and choked flow folder; increase safety guard; uninterrupted power source is provided, utilizes pump and high low level liquid case to realize unidirectional blood circulation dialysis work.Its structural feature is: A. is equipped with blood pump on the blood tube between dialyser and the anticoagulant syringe, the anticoagulant syringe is contained on the injector; B. dialysis solution flows into Guan Yitou and is connected with liquid bag in the header box, a process dialysis solution flow plug is connected with dialyser, dialysis solution flows out Guan Yitou and is connected with two dialysers, one is connected with liquid bag in the low level case through blood leakage monitor, is communicated with by dialysis solution pipe and liquid pump between low level case and the header box; C. header box be positioned at support above, the low level case is positioned at the bottom of support, dialyser, blood pump, liquid pump, anticoagulant syringe, venous pressure monitor, bubble trap, bubble monitor and blood choked flow folder and dialysis solution flow plug are installed on the main frame, main frame is positioned at the top of support, and universal wheel is housed below support; D. at the rear portion of support ups power is housed, host power supply and main frame are housed at the rear portion of main frame detect the control alarm board, in the front of main frame the display operation plate is arranged, main frame detects control alarm board, display operation plate and blood pump and all is connected with the host power supply cable with liquid pump, and the ups power lead of host power supply and support is pegged graft; E. be equipped with gravity or pressure transducer respectively in the bottom of low level case and header box, be equipped with at the medial surface of header box and heat and temperature measuring set.

This utility model is before work, the dialysis solution (being generally packed) that will meet medical standard earlier places in the header box, because gravity sensor and temperature measuring equipment are housed in header box, thereby can measure dialysate volumes or weight and temperature automatically, and dialysis solution is remained in the set point of temperature scope.Again empty dialyzate bag is placed in the low level case.Connect dialysis solution pipeline and extracorporeal circulation of blood pipeline.When treating that dialysate temperature reaches prescribed limit, dialysis solution begins to flow to dialyser, starts blood pump and each monitoring, control device simultaneously, the beginning dialysis procedure, and the heparin injector will slowly be injected anticoagulant in blood tube.Blood flows into from dialyser lower end blood tube, and from the blood tube outflow of dialyser upper end, dialysis solution is gone in the dialyser from the header box and the dialysis solution inflow pipe flow of dialyser upper end, and the dialysis solution from the dialyser lower end flows out pipe flow in the low level case again.When the dialysis solution in the header box was empty near stream, startup dialysis liquid pump pumped into header box with dialysis solution in the low level case, dialysis solution is flowed continued, thereby realize dialysis solution circulation repeated use.When dialysis solution repetitive cycling access times reach predetermined value, suspend dialysis, the high and low position liquid bag that can renew this moment restarts dialysis (this utility model adopts high capacity liquid bag, once generally need not renew liquid in the medical treatment).If the dialysis solution consumption, ultrafiltration volume during hit the target, can finish dialysis.By measuring the volume or weight variable quantity of liquid in the case of high and low position, can measure important parameters such as dialysate flow, positive and negative ultrafiltration volume in the dialysis procedure.

This utility model is owing to have venous pressure monitor, bubble monitor, safety devices such as blood leakage monitor, venous pressure is unusual when taking place, bubble occurs in the blood, when leaking fault such as blood, display operation plate on the main frame will be used sound and light alarm, host power supply makes the blood pump stall simultaneously, dialysis solution flow plug, blood choked flow folder end dialysis solution and blood flow with the pinch tube roadlock, thereby avoid the generation of malpractice.Owing at the support rear portion ups power is housed, therefore, when having a power failure, still can works on.

Adopt such scheme, have following advantage:

1. need not manually frequently to renew the liquid bag, easy and simple to handle, be easy to grasp, reduce maloperation;

2. the heavy huge lifting switch of cancellation, volume reduces, and is in light weight, operation, easy to maintenance, and solved preferably lubricated, anticorrosion, antirust, problems such as health.Avoid because of motion causes twining of dialysis solution pipeline problems such as extension.

3. it is more accurate to measure dialysate volumes or weight and changing value thereof, and it is more accurate that the mensuration of indexs such as flow, ultrafiltration is calculated.

4. have necessary security measures such as the blood of leakage, bubble, venous pressure monitoring, patient's safety is reliably guaranteed.

But 5. operate as normal still when having a power failure, monitoring, functions such as control are unaffected.

The unidirectional circulation of dialysis solution in this device, and reuse, dialysis solution is fully used, and cuts the waste, and reduces the treatment cost; This device does not rely on water treatment facilities, can work independently.The complete machine conveniently moving, and main frame can carry the diagnosis and treatment of going out separately, and it is similar to the conventional hemodialysis (CHD) machine to adapt to symptom.Price is low, and operation, easy maintenance are easy to promote, and popularize.

Below in conjunction with drawings and Examples this utility model is further specified:

Fig. 1 is a front view of the present utility model;

Fig. 2 is the left view of Fig. 1.

By Fig. 1, Fig. 2 is as can be known: this utility model is by header box 1, blood tube 2, venous pressure monitor 3, bubble trap 4, bubble monitor 5, injector 6, blood choked flow folder 7, blood tube 8, blood pump 9, liquid bag 10, gravity or pressure transducer 11, universal wheel 12, low level case 13, support 14, dialysis solution flows out pipe 15, blood leakage monitor 16, main frame 17, liquid pump 18, dialyser 19, display operation plate 20, fixed mount 21, dialysis solution pipe 22, dialysis solution flow plug 23, dialysis solution flows into pipe 24, gravity or pressure pass device 25, heat and temperature measuring set 26, liquid bag 27 is formed.Annexation between them is: dialyser 19 is installed on the main frame 17 by fixed mount 21, in the upper end of dialyser 19 dialysis solution is installed and is flowed into pipe 24 and blood tube 2, in the lower end of dialyser 19 dialysis solution is installed and is flowed out pipe 15 and blood tube 8, tail end in the blood tube 2 of exporting dialyser 19 is equipped with venous pressure monitor 3, bubble trap 4, bubble monitor 5 and choked flow folder 7, head end in the blood tube 8 of importing dialyser 19 is equipped with anticoagulant syringe 28, anticoagulant syringe 28 is contained on the injector 6, on the blood tube 8 between dialyser 19 and the anticoagulant syringe 28 blood pump 9 is installed.Dialysis solution flows into 24 1 of pipes and is connected with liquid bag 27 in the header box 1 in aforementioned, a process dialysis solution flow plug 23 is connected with dialyser 19, dialysis solution flows out 15 1 of pipes and is connected with dialyser 19, one is connected with liquid bag 10 in the low level case 13 through blood leakage monitor 16, is communicated with by dialysis solution pipe 22 and liquid pump 18 between low level case 13 and the header box 1; Header box 1 be positioned at support 14 above, low level case 13 is positioned at the bottom of support 14, dialyser 19, blood pump 9, liquid pump 18, anticoagulant syringe 28, venous pressure monitor 3, bubble trap 4, bubble monitor 5, dialysis solution flow plug 23 and blood choked flow folder 7 are installed on the main frame 17, main frame 17 is positioned at the top of support 14, and universal wheel 12 is arranged below support 14.At the rear portion of support 14 ups power 31 is arranged, there are host power supply 30 and main frame to detect control alarm board 29 at the rear portion of main frame 17, in the front of main frame display operation plate 20 is arranged, main frame detects control alarm board 29, display operation plate 20 and blood pump 9 and all is connected with host power supply 30 cables with liquid pump 18, and host power supply 30 is pegged graft with ups power 31 leads of support 14.Be equipped with gravity or pressure transducer 11 and 25 respectively in the bottom of low level case 13 and header box 1, be equipped with at the medial surface of header box 1 and heat and temperature measuring set 26.

Can further learn from above-mentioned accompanying drawing: each part on the main frame 17 and the main frame of packing into and liquid bag can take out outside support 14 and the high and low position case, are convenient to carry separately the diagnosis and treatment of going out.Because this utility model is equipped with ups power, thereby under situation about having a power failure, can be plugged on host power supply 30 on the ups power 31, realize continuous operation.

Claims (1)

1. unidirectional circulating haemodialysis control unit, dialysis solution pipe and blood tube all are equipped with in top and bottom at dialyser (19), blood tube (8) head end at input dialyser (19) is equipped with anticoagulant syringe (28), at blood tube (2) tail end of exporting dialyser (19) venous pressure monitor (3), bubble trap (4), bubble monitor (5) and choked flow folder (7) is housed, and it is characterized in that:

A. on the blood tube (8) between dialyser (19) and the anticoagulant syringe (28) blood pump (9) is installed, anticoagulant syringe (28) is contained on the injector (6);

B. dialysis solution flows into (24) one of pipes and is connected with liquid bag (27) in the header box (1), a process dialysis solution flow plug (23) is connected with dialyser (19), dialysis solution flows out (15) one of pipes and is connected with dialyser (19), one is connected with liquid bag (10) in the low level case (13) through blood leakage monitor (16), is communicated with by dialysis solution pipe (22) and liquid pump (18) between low level case (13) and the header box (1);

C. header box (1) be positioned at support (14) above, low level case (13) is positioned at the bottom of support (14), dialyser (19), blood pump (9), liquid pump (18), anticoagulant syringe (28), venous pressure monitor (3), bubble trap (4), bubble monitor (5) and blood choked flow folder (7) and dialysis solution flow plug (23) are installed on the main frame (17), main frame (17) is positioned at the top of support (14), and universal wheel (12) is housed below support (14);

D. at the rear portion of support (14) ups power (31) is housed, host power supply (30) and main frame are housed at the rear portion of main frame (17) detect control alarm board (29), display operation plate (20) is arranged in the front of main frame, main frame detects control alarm board (29), display operation plate (20) and blood pump (9) and all is connected with host power supply (30) cable with liquid pump (18), and host power supply (30) is pegged graft with ups power (31) lead of support (14);

E. be equipped with gravity or pressure transducer (11) and (75) respectively in the bottom of low level case (13) and header box (1), be equipped with at the medial surface of header box (1) and heat and temperature measuring set (26).