CN215351089U - Hemodialysis device for nephrology department - Google Patents

Abstract

The utility model relates to a hemodialysis device for nephrology department, which at least comprises a dialysis device, a blood conveying pipe and a heparin pump, wherein the blood conveying pipe penetrates through a shell of the dialysis device in a penetrating manner, the heparin pump is arranged on the shell of the dialysis device and is communicated with the blood conveying pipe, the heparin pump at least comprises a base fixedly arranged on the shell of the dialysis device, a support is arranged on the base, an electric push rod and an injector are fixedly arranged on the support, an injector shell is fixedly arranged on the support, a piston push rod of the injector is connected with the electric push rod, and under the condition that the electric push rod extends, the injector transmits heparin to the blood conveying pipe in a manner of reducing the space of an inner cavity of the injector.

Description

Hemodialysis device for nephrology department

Technical Field

The utility model relates to the technical field of medical equipment, in particular to a hemodialysis device for nephrology department.

Background

Hemodialysis is one of the kidney replacement treatment modes of patients with acute and chronic renal failure. With the continuous development and maturity of blood purification technology, the blood purification technology is widely and generally applied, and the blood and dialysate with similar body concentration are arranged inside and outside one hollow fiber through a dialyzer consisting of a plurality of hollow fibers by draining the blood in vivo to the outside, and the material exchange is carried out by the dispersion convection to remove the metabolic waste in vivo and maintain the balance of electrolyte and acid-base; and simultaneously, excessive water in the body is removed. But traditional hemodialysis device dialysis efficiency is low down and lack temperature control mechanism, causes patient's body temperature fluctuation too big easily, especially when carrying out the operation in chilly winter, needs other supplementary settings to heat the blood of dialysis backward flow, and it is very inconvenient to use, and traditional hemodialysis device does not possess automatic control function on the one hand again.

Chinese patent (publication number is CN207871210U) discloses a nephrology department hemodialysis device, including the equipment body, the interior diapire fixed mounting of equipment body has the blood pressure perspective ware, and the middle part fixed mounting of blood pressure perspective ware has the dialysis membrane, and the top fixed mounting of blood pressure perspective ware has the detector, and the bottom fixed mounting of blood pressure perspective ware has the heating piece, and the left side intercommunication of blood pressure perspective ware has the arterial duct, and the middle part intercommunication of arterial duct has blood pump. This nephrology dept hemodialysis device can be in the aspect of the clear blood pressure stable condition of seeing oneself of patient, thereby can reach the blood of blood dialysis machine inside and the exchange of material takes place with the dislysate with blood drainage, guaranteed patient's safety and health, the condition of demonstration blood that can be detailed. The patient has the advantages of convenience in use, simplicity in operation and the like, and the working efficiency can be improved and the safety of patients can be guaranteed. However, this patent has at least the safety disadvantage of not preventing the blood from coagulating to cause clogging of the dialysis membrane. Therefore, the technical problem to be solved by the utility model is to provide a hemodialysis device for nephrology department, which overcomes the defects of the prior art.

Dialysis arrhythmia is arrhythmia occurring after hemodialysis starts, or new type of arrhythmia occurring due to hemodialysis on the basis of original arrhythmia. The conduction system of the heart is affected by the levels of many ions in the blood, such as K +, Ca +, Mg +, and H +. These ion levels are often abnormal in end stage renal dialysis patients and often fluctuate rapidly during hemodialysis, and hypoxemia is often associated with the entire dialysis session. Elderly patients with hemodialysis often have left ventricular hypertrophy and ischemic heart disease, and calcification of cardiac muscle (affecting conductive tissues) of some patients is sensitive to changes of ions in blood, and is easy to induce arrhythmia. Common arrhythmias often include self-limiting ventricular tachycardia, paroxysmal atrial fibrillation, and frequent premature ventricular contractions.

In the field of hemodialysis technology, it is a common technical means to provide a branch on the tubing of the hemodialyzer and the arterial needle to communicate with a syringe. For example, chinese patent No. CN202844196U discloses a hemodialysis machine with which contamination of the orifice of a hemodialysis tube can be prevented and the flow rate of blood can be adjusted. The blood inlet of the hemodialyzer is communicated with the arterial blood circulation conduit, the additional anticoagulant conduit is connected with an anticoagulant injector, the blood outlet of the hemodialyzer is communicated with the venous blood circulation conduit, the medicine adding pipe is communicated with the venous blood circulation conduit, the two dialysate circulation conduits are communicated with the hemodialyzer, the two dialysate circulation conduits are communicated with the two dialysate bags, the arterial blood circulation conduit is provided with an arterial blood sampling sample hole, the venous blood circulation conduit is provided with a venous blood sampling sample hole, the arterial blood circulation conduit, the venous blood circulation conduit and the medicine adding pipe are blocked by caps, the caps are provided with annular handles, the arterial blood sampling sample hole and the venous blood sampling sample hole are sealed by rubber plugs, and the arterial blood circulation conduit and the venous blood circulation conduit are provided with blood speed regulating valves. By adding the anticoagulant catheter to the circulating catheter, the anticoagulant catheter is favorably added into the non-dialyzed blood in the hemodialysis process, so that the symptoms of thrombus and the like are avoided.

Chinese patent CN101141989A discloses a hemodialysis apparatus, which can correctly grasp the continuous aging of the performance of hollow fiber membrane during dialysis and can quickly and accurately recover the performance. The hemodialysis apparatus is provided with a detector (15) for measuring the pressure in the blood circuit, a detector (16) for measuring the pressure in the dialysate conduit, calculates the pressure difference between membranes from the pressures measured by the detectors, and performs reverse filtration in the dialyzer (1) when the pressure difference between the membranes rises to a predetermined value or more. The reverse filtration is performed to remove clogging of pores of a dialysis membrane of the dialyzer (1) and recover the performance of the dialyzer (1).

Fluid pressure gauges are used to measure the pressure of fluids and are classified into two types, liquid type and metal type. The liquid pressure gauge is based on the hydrostatic principle and is manufactured by utilizing the principle that the pressure generated by the self weight of a liquid column is balanced with the measured pressure. The liquid pressure gauge is used for measuring smaller pressure, the metal pressure gauge is used for measuring larger pressure, and the metal pressure measuring instrument is convenient to carry and simple in device.

In japanese patent application laid-open No. 2004-248844, there is disclosed in detail a technique of measuring the pressure of at least one of an inflow portion and an outflow portion of blood and a filtrate in a hollow fiber membrane having the inflow portion and the outflow portion of blood and the inflow portion and the outflow portion of the filtrate, and analyzing a continuous change in the measured pressure to find a clogging state of filtration in the hollow fiber membrane.

Chinese invention CN201580058395.3 provides a portable hemodialysis system comprising a disposable cartridge and a reusable dialysis machine. The disposable cartridge includes a dialysate flow path and a blood flow path that flow in opposite directions through the dialyzer. The disposable cartridge includes a filter for removing waste from the dialysate. A reusable dialysis machine has a reservoir for dialysate, various sensors including a blood leak sensor assembly, and a processor connected to the various sensors for controlling and monitoring hemodialysis treatment. The blood leak sensor assembly includes a light source for emitting light through the dialysate flow path and a light sensor for receiving light that has passed through the dialysate flow path. The processor is connected to the light source for determining whether blood has leaked from the blood flow path into the dialysate flow path.

Chinese invention CN201480059925.1 relates to a blood treatment apparatus (1000) having: a diafiltration device (100) or a receptacle (9) for the diafiltration device (100); a dialysis liquid inlet line (1) having a first connector (3) to feed dialysis liquid into the diafiltration cartridge (100); a dialysate extraction line (5) with a second connector (7) to drain dialysate from the diafiltration cartridge (100); a blood leakage sensor (11) to and arranged to detect blood in the hemodiafiltration unit (100) or at the hemodiafiltration unit (100), in the dialysis liquid inlet line (1) and/or in the dialysis liquid outlet line (5) and to emit a Blood Leakage Signal (BLS) if blood is detected; a short loop line (13) for connecting the dialysis liquid inlet line (1) in fluid communication with, or to, the dialysis liquid outlet line (5), wherein for this purpose the short loop line (13) comprises a third connector (15) and a fourth connector (17), the third connector (15) and the fourth connector (17) being for connection with one of the first connector (3) and the second connector (7), respectively.

Chinese invention CN201580058394.9 provides a portable hemodialysis system comprising a disposable cartridge and a reusable dialysis system. The disposable cartridge includes a dialysate flow path and a blood flow path that flow in opposite directions through the dialyzer. The disposable cartridge includes a filter for removing waste from the dialysate and pressure and fluid flow sensors for measuring pressure and fluid flow in the dialysate flow path and the blood flow path. Preferably, the filter has a vapor membrane for releasing gases including ammonia, but not liquids such as dialysate. The reusable dialysis machine has a reservoir for dialysate, an ammonia sensor near the vapor membrane, a level sensor, a blood leak sensor, a venous blood line pressure sensor, a venous blood line bubble detector, a pump motor, and a processor connected to the motor and sensors to control and monitor the hemodialysis treatment.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides a hemodialysis device for nephrology department, which at least comprises a dialysis device, a blood conveying pipe and a heparin pump, wherein the blood conveying pipe penetrates through a shell of the dialysis device in a penetrating manner, the heparin pump is arranged on the shell of the dialysis device and is communicated with the blood conveying pipe, the heparin pump at least comprises a base fixedly arranged on the shell of the dialysis device, a support is arranged on the base, an electric push rod and an injector are fixedly arranged on the support, an injector shell is fixedly arranged on the support, a piston push rod of the injector is connected with the electric push rod, and heparin in the injector can be transmitted to the blood conveying pipe in a manner of reducing the space of an inner cavity of the injector under the condition that the electric push rod extends.

According to a preferred embodiment, one side of the dialysis device is connected with a dialysate inlet pipe, one side of the dialysis device, which is far away from the dialysate inlet pipe, is connected with a dialysate outlet pipe, one end of the dialysate inlet pipe, which is far away from the dialysis device, is connected with a dialysate stirring device used for fully diluting and stirring dialysate, and a temperature sensor and an electric heating layer used for heating dialysate are arranged in the dialysate stirring device.

According to a preferred embodiment, the dialysis device comprises at least the dialysis device housing and a dialysis exchange chamber, wherein the dialysis device housing is provided with a heart rate sensor and an ultrafiltration regulating device, wherein the ultrafiltration regulating device is capable of increasing or decreasing the ultrafiltration volume in a manner of changing the flow rate difference between the dialysate outlet tube and the dialysate inlet tube in case the patient heart rate data acquired by the heart rate sensor exceeds a heart rate threshold value.

According to a preferred embodiment, the blood delivery tube comprises at least a blood drawing port and a blood delivery port, the blood drawing port is connected to an artery of a patient, the blood delivery port is connected to a vein of the patient, and the blood delivery tube located inside the dialysis device shell is a hollow thread membrane, wherein the blood delivery port is provided with a blood delivery pump for providing a blood pressure difference, and the blood delivery tube delivers blood of the patient to the blood delivery port through the blood drawing port based on the pressure difference when the blood delivery pump is opened.

According to a preferred embodiment, the hollow fiber membrane is provided with a differential pressure gauge capable of detecting the pressure difference between the blood conveying pipe and the dialysis exchange cavity, and the differential pressure gauge emits a buzzer and/or a flashing signal in a manner of opening an audible and visual alarm under the condition that the pressure difference value acquired by the differential pressure gauge is higher than a pressure difference threshold value.

According to a preferred embodiment, the heart rate sensor at least comprises an LED module for collecting heart rate and a detection module for detecting heart rate, wherein the detection module is electrically connected with a box body of the heart rate sensor, and a glass sheet, the LED module, an insulating paste, foam and a metal cover are sequentially arranged in the box body.

According to a preferred embodiment, the ultrafiltration regulating device comprises at least a regulating module and a dialysis pump, which is arranged at the connection of the dialysate outlet conduit and the dialysis device to each other.

According to a preferred embodiment, a blood leakage sensor for detecting whether blood leaks is further arranged in the dialysis device, and in the case that the blood leakage sensor collects a signal of blood leakage, the blood delivery pump closes a passage between the blood drawing port and the blood delivery port in a stop mode.

According to a preferred embodiment, the dialysate outlet tube is connected to a waste collection tank for collecting dialysate waste.

The utility model has at least the following beneficial technical effects:

(1) aiming at the safety defect that the traditional dialysis device can not prevent the blood from coagulating to cause the blockage of the dialysis membrane, the utility model effectively reduces the possibility of thrombosis in the dialysis process by arranging the heparin pump, reduces the blockage probability in the dialysis process, ensures the normal operation of dialysis and protects the life safety of a patient. And the motor transmission structure is simplified, so that the heparin pump is easy to mount, and the reliability of the heparin pump is improved.

(2) The heart rate sensor and the ultrafiltration adjusting device are arranged to realize real-time detection of the physiological condition of the patient, so that the major safety problem of the patient caused by heart failure due to dialysis can be effectively prevented, and the safety degree of the patient during dialysis is greatly improved.

Drawings

FIG. 1 is a simplified structural connection schematic of the hemodialysis apparatus of the present invention;

FIG. 2 is a simplified structural connection schematic of the heparin pump of the present invention; and

fig. 3 is a simplified structural connection diagram of the heart rate sensor of the present invention.

List of reference numerals

1: dialysate inlet tube 2: dialysis apparatus 3: dialysate outlet tube

4: a heparin pump 13: dialysate stirring device 23: heart rate sensor

24: ultrafiltration regulating device 25: dialysis device housing 26: blood transfusion tube

27: dialysis exchange chamber 28: blood leakage sensor

33: differential pressure gauge 34: waste liquid collecting barrel 41: base seat

42: the support 43: electric push rod 44: syringe with a needle

45: piston pusher 131: temperature sensor 132: electric heating layer

231: the LED module 232: the detection module 233: box body

234: insulating paste 235: foam 236: metal cover

237: glass sheet 241: the adjusting module 242: dialysis pump

261: hollow filament film 262: blood drawing port 263: blood transfusion mouth

264: blood delivery pump

Detailed Description

The following detailed description is made with reference to the accompanying drawings. In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The word "module" as used herein describes any type of hardware, software, or combination of hardware and software that is capable of performing the functions associated with the "module".

Example 1

As shown in fig. 1, the hemodialysis apparatus for nephrology department at least comprises a dialysis apparatus 2, a blood transfusion tube 26 and a heparin pump 4, wherein the blood transfusion tube 26 passes through a dialysis apparatus shell 25 in a penetrating manner, the heparin pump 4 is arranged on the dialysis apparatus shell 25 and communicated with the blood transfusion tube 26, the heparin pump 4 at least comprises a base 41 fixedly arranged on the dialysis apparatus shell 25, a support 42 is arranged on the base 41, an electric push rod 43 and an injector 44 are fixedly arranged on the support 42, the outer shell of the injector 44 is fixedly arranged on the support 42, a piston push rod 45 of the injector 44 is connected with the electric push rod 43, and when the electric push rod 43 extends, heparin inside the injector 44 can be transmitted to the blood transfusion tube 26 in a manner of reducing the inner cavity space of the injector 44. The heparin pump 4 is arranged, so that the possibility of thrombosis in the dialysis process is effectively reduced, the blocking probability in the dialysis process is reduced, the normal operation of dialysis is ensured, and the life safety of a patient is protected. And the motor transmission structure is simplified, so that the installation is easy, and the reliability of the heparin pump 4 is improved. Preferably, the electric push rod 43 can use a stepping linear motor, and the rotation speed of the motor can be changed by changing the frequency of the pulse signal of the stepping motor, so that the slow heparin injection or the fast heparin injection can be realized. Preferably, compared with the defects of complex structure, numerous parts and poor reliability of the traditional heparin pump, the heparin pump 4 has simple assembly and high reliability by simplifying the structure, and the heparin pump 4 has the functions of slowly injecting heparin and quickly injecting heparin by the transmission mode of the electric push rod 43.

According to a preferred embodiment, one side of the dialysis device 2 is connected with a dialysate inlet pipe 1, one side of the dialysis device 2 far away from the dialysate inlet pipe 1 is connected with a dialysate outlet pipe 3, one end of the dialysate inlet pipe 1 far away from the dialysis device 2 is connected with a dialysate stirring device 13 for fully diluting and stirring dialysate, and a temperature sensor 131 and an electric heating layer 132 for heating dialysate are arranged in the dialysate stirring device 13. Wherein the dialysate stirring device 13 is further provided with an inlet for adding a diluent. According to the utility model, the temperature of the dialysate is adjusted and controlled by arranging the electric heating layer 132 and the temperature sensor 131, so that the temperature of the dialyzed blood is ensured, and the discomfort of a patient caused by too low blood temperature is avoided.

According to a preferred embodiment, the dialysis device 2 comprises at least a dialysis device housing 25 and a dialysis exchange chamber 27, the dialysis device housing 25 being provided with a heart rate sensor 23 and an ultrafiltration regulating device 24, the ultrafiltration regulating device 24 being capable of increasing or decreasing the ultrafiltration volume in a manner that changes the flow rate difference between the dialysate outlet conduit 3 and the dialysate inlet conduit 1 in case the patient heart rate data acquired by the heart rate sensor 23 exceeds a heart rate threshold value. Wherein the heart rate threshold is set to the fastest heart rate set by the medical staff according to the personal physiological condition of the patient in a safe state. Preferably, the ultrafiltration regulating device 24 can be a device for changing the flow rate difference by changing the rotational speed of the dialysis pump 242. The heart rate sensor 23 and the ultrafiltration regulating device 24 are arranged to realize real-time detection of the physiological condition of the patient, so that the major safety problem of heart failure of the patient caused by dialysis can be effectively prevented, and the safety degree of the patient during dialysis is greatly improved.

According to a preferred embodiment, the blood supply line 26 comprises at least a blood withdrawal port 262 and a blood supply port 263, the blood withdrawal port 262 being connected to an artery of the patient, the blood supply port 263 being connected to a vein of the patient, the blood supply line 26 being located inside the dialysis device housing 25 being a hollow-wire membrane 261, wherein the blood supply port 263 is provided with a blood supply pump 264 for providing a blood pressure difference, and in the case of an open blood supply pump 264, the blood supply line 26 supplies the blood of the patient via the blood withdrawal port 262 to the blood supply port 263 on the basis of the pressure difference.

According to a preferred embodiment, the hollow-fiber membrane 261 is provided with a differential pressure gauge 33 capable of detecting the pressure difference between the blood supply line 26 and the dialysis exchange chamber 27, the differential pressure gauge 33 emitting a beeping and/or flashing signal in such a way that an audible and visual alarm is activated in case the differential pressure value detected by the differential pressure gauge is higher than a differential pressure threshold value. Preferably, in the case that the differential pressure value acquired by the differential pressure gauge 33 is higher than the differential pressure threshold value, the differential pressure gauge 33 may emit a buzzer and/or a flashing signal in a manner of transmitting an electric signal to an audible and visual alarm, which is a conventional means in the prior art, so that the present invention does not involve an improvement of the control program. Preferably, the threshold pressure difference is set to the maximum pressure difference value that the medical personnel can provide under normal working conditions of the hollow filament membrane 261. Preferably, the differential pressure gauge 33 may be a detector referred to in publication No. CN 101141989A. According to the utility model, the aging degree and/or the blocking degree of the hollow fiber membrane 261 in the dialysis process can be correctly grasped and warned by arranging the differential pressure gauge 33, so that the safety in the dialysis process is effectively improved, and the life safety of a patient is protected.

According to a preferred embodiment, the heart rate sensor 23 at least comprises an LED module 231 for collecting the heart rate and a detection module 232 for detecting the heart rate, wherein the detection module 232 is electrically connected with a box 233 of the heart rate sensor 23, and a glass sheet 237, the LED module 231, an insulating sticker 234, foam 235 and a metal cover 236 are sequentially arranged in the box 233. According to the utility model, the heart rate sensor 23 is arranged to realize accurate measurement of the heart rate data of the patient, wherein the LED module 231 for collecting the heart rate realizes detection of the heart rate data of the patient by emitting light, receiving reflected light intensity data and transmitting the light intensity data to the detection module 232. Preferably, the heart rate sensor 23 may be a heart rate sensor of the kind referred to in publication CN 206675518U.

According to a preferred embodiment, the ultrafiltration regulating device 24 comprises at least a regulating module 241 and a dialysis pump 242, the dialysis pump 242 being arranged at the connection of the dialysate outlet conduit 3 and the dialysis device 2 to each other, the dialysis pump 242 being capable of regulating the dialysate transport rate in the dialysate outlet conduit 3 by changing the pressure difference between the dialysate outlet conduit 3 and the dialysis exchange chamber 27 of the dialysis device 2 in case the regulating module 241 generates a flow rate regulating scheme for regulating the dialysis pump 242 on the basis of the patient heart rate data.

According to a preferred embodiment, a blood leakage sensor 28 is also provided in the dialysis device 2 for detecting the occurrence of a leakage of blood, and in case a signal of a blood leakage is detected by the blood leakage sensor 28, the blood delivery pump 28 closes the passage between the blood withdrawal port 262 and the blood delivery port 263 in such a way that it is deactivated.

According to a preferred embodiment, a waste collection tank 34 for collecting dialysis waste is connected to the dialysate outlet tube 3.

It should be noted that the above-mentioned embodiments are exemplary, and that those skilled in the art, having benefit of the present disclosure, may devise various arrangements that are within the scope of the present disclosure and that fall within the scope of the utility model. It should be understood by those skilled in the art that the present specification and figures are illustrative only and are not limiting upon the claims. The scope of the utility model is defined by the claims and their equivalents.

Claims (5)

1. A nephrology hemodialysis device comprising at least a dialysis device (2), a blood delivery tube (26) and a heparin pump (4), characterized in that the blood delivery tube (26) passes through a dialysis device housing (25) in a penetrating manner, the heparin pump (4) is arranged on the dialysis device housing (25) and is communicated with the blood delivery tube (26), wherein,

the heparin pump (4) at least comprises a base (41) fixedly arranged on the dialysis device shell (25), a bracket (42) is arranged on the base (41), an electric push rod (43) and an injector (44) are fixedly arranged on the bracket (42), the injector (44) is fixedly arranged on the bracket (42), a piston push rod (45) of the injector (44) is connected with the electric push rod (43),

under the condition that the electric push rod (43) is stretched, heparin inside the injector (44) can be transmitted to the blood conveying pipe (26) in a mode of reducing the space of the inner cavity of the injector (44),

the dialysis device (2) at least comprises a dialysis device shell (25) and a dialysis exchange cavity (27), wherein a heart rate sensor (23) and an ultrafiltration regulating device (24) are arranged on the dialysis device shell (25);

one side of the dialysis device (2) is connected with a dialysate inlet pipe (1), one side of the dialysis device (2) far away from the dialysate inlet pipe (1) is connected with a dialysate outlet pipe (3),

one end of the dialysate inlet pipe (1) far away from the dialysis device (2) is connected with a dialysate stirring device (13) for fully diluting and stirring dialysate;

the blood transfusion tube (26) comprises at least a blood drawing port (262) and a blood transfusion port (263), the blood drawing port (262) is connected with an artery of a patient, the blood transfusion port (263) is connected with a vein of the patient, the blood transfusion tube (26) positioned inside the dialysis device shell (25) is a hollow silk film (261),

the blood supply opening (263) is provided with a blood supply pump (264) for providing a blood pressure difference, wherein, when the blood supply pump (264) is opened, blood of a patient can be supplied to the blood supply opening (263) through the blood withdrawal opening (262) on the basis of the pressure difference.

2. Hemodialysis device according to claim 1, characterized in that the hollow filament membrane (261) is provided with a differential pressure gauge (33) capable of detecting the pressure difference between the blood delivery vessel (26) and the dialysis exchange chamber (27),

the differential pressure gauge (33) generates a beep and/or flashing signal in case the differential pressure value acquired by the differential pressure gauge is higher than a differential pressure threshold value.

3. Hemodialysis apparatus according to claim 2, wherein the heart rate sensor (23) comprises at least an LED module (231) for collecting heart rate and a detection module (232) for detecting heart rate, wherein,

the detection module (232) is electrically connected with a box body (233) of the heart rate sensor (23), and a glass sheet (237), an LED module (231), an insulating paste (234), foam (235) and a metal cover (236) are sequentially arranged in the box body (233).

4. The hemodialysis apparatus of claim 3, wherein the ultrafiltration conditioning device (24) comprises at least a conditioning module (241) and a dialysis pump (242), the dialysis pump (242) being arranged at the connection of the dialysate outlet conduit (3) and the dialysis device (2) to each other.

5. A hemodialysis device according to claim 4, wherein the dialysate outlet tube (3) is connected with a waste collection tank (34) for collecting dialysis waste.

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