CN219332731U

CN219332731U - Portable CRRT equipment

Info

Publication number: CN219332731U
Application number: CN202320567426.XU
Authority: CN
Inventors: 牟倡骏; 王振华; 刁志良; 刘洋; 金伟亮; 苏童
Original assignee: Shandong Weigao Blood Purification Products Co Ltd
Current assignee: Shandong Weigao Blood Purification Products Co Ltd
Priority date: 2023-03-20
Filing date: 2023-03-20
Publication date: 2023-07-14
Anticipated expiration: 2033-03-20

Abstract

The application discloses portable CRRT equipment, including the casing and locate blood pump, waste liquid pump, dialysis liquid pump and replacement liquid pump of casing, blood pump and waste liquid pump are located the first side of casing, dialysis liquid pump and replacement liquid pump are located the second side of casing, the casing still is equipped with first measurement container and second measurement container, first measurement container communicates with dialysis liquid pump and replacement liquid pump, first measurement container is used for measuring the capacity of dislysate or replacement liquid, second measurement container communicates with the waste liquid pump, second measurement container is used for measuring the capacity of waste liquid, first measurement container and second measurement container are located between the first side and the second side of casing; the end face of the shell, which is close to the first side, is provided with a heater, and the heater is used for heating the treatment liquid so that the heated treatment liquid enters the dialysis liquid pump and/or the replacement liquid pump through the first measuring container.

Description

Portable CRRT equipment

Technical Field

The application relates to the technical field of medical equipment, in particular to portable CRRT equipment.

Background

CRRT (continuous renal replacement therapy ), a blood purification treatment technique for continuously and slowly removing water and solutes by means of extracorporeal circulation blood purification, to replace renal function. CRRT devices generally employ continuous treatment for a long period of time, 24 hours or nearly 24 hours per day, with the goal of removing body excess moisture, metabolic waste and toxins, correcting aqueous electrolyte disturbances, providing nutrients, and promoting recovery of renal function. Common CRRT equipment has the treatment functions of dialysis, filtration, ultrafiltration and the like.

Aiming at the prior CRRT equipment, the volume is huge, the CRRT equipment is generally fixed at the sickbed side of a hospital department, a patient needs to be sent to the hospital for treatment, under the condition that the patient is in sudden illness state or is accidentally injured, the risk of missing the optimal treatment time exists, or in first-line of disaster rescue areas, battlefields and the like, the patient may need to immediately carry out blood purification treatment, but the life is lost because of no related equipment of medical rescue teams. The traditional CRRT equipment adopts an electronic scale weighing mode to control liquid balance, the method has high environmental requirements, and any jolt, shake, vibration or touch electronic scale can influence the liquid balance metering precision.

Disclosure of Invention

To solve the above problems, embodiments of the present application provide a portable CRRT device.

The portable CRRT equipment comprises a shell, a blood pump, a waste liquid pump, a dialysis liquid pump and a replacement liquid pump which are arranged on the shell, wherein the blood pump and the waste liquid pump are arranged on a first side of the shell, the dialysis liquid pump and the replacement liquid pump are arranged on a second side of the shell, the shell is further provided with a first measuring container and a second measuring container, the first measuring container is communicated with the dialysis liquid pump and the replacement liquid pump, the first measuring container is used for measuring the volume of dialysis liquid or replacement liquid, the second measuring container is communicated with the waste liquid pump, the second measuring container is used for measuring the volume of waste liquid, and the first measuring container and the second measuring container are arranged between the first side and the second side of the shell; the end face of the shell, which is close to the first side, is provided with a heater, and the heater is used for heating the treatment liquid so that the heated treatment liquid enters the dialysis liquid pump and/or the replacement liquid pump through the first measuring container.

In some embodiments, the heater comprises:

the seat body is connected with the shell;

the shell is rotationally connected with the seat body and can form a containing cavity with the seat body;

and the heating body is arranged on the inner sides of the seat body and the shell and is used for heating the therapeutic liquid bag positioned in the accommodating cavity.

In some embodiments, the housing or shell is further provided with a switch lock for closing the housing and shell.

In some embodiments, the housing is further provided with a treatment fluid three-way valve and a waste fluid three-way valve, the treatment fluid three-way valve being disposed at the bottom of the first measurement vessel for communicating the first measurement vessel with the dialysate pump and the substitution pump, the waste fluid three-way valve being disposed at the bottom of the second measurement vessel for communicating the second measurement vessel with the waste fluid pump.

In some embodiments, the top and bottom of the first and second measurement containers are respectively provided with an upper limit liquid level sensor and a lower limit liquid level sensor, and a safety limit liquid level sensor is further arranged above the upper limit liquid level sensor.

In some embodiments, the housing is rotatably provided with a protective door for shielding the first measuring container, the second measuring container, the upper limit level sensor, the lower limit level sensor and the safety limit level sensor.

In some embodiments, the end face of the housing adjacent to the second side is provided with a functional assembly comprising:

the bubble detection piece is used for observing bubbles in the venous line;

the blood detection part is used for prompting the end of blood drawing or blood return of the venous line;

a pinch valve for closing off the venous line;

and the detecting piece is used for detecting whether the venous pipeline is clamped in place or not.

In some embodiments, the end face of the housing adjacent the second side is provided with a heparin pump disposed proximate the functional component, the heparin pump comprising: the device comprises a syringe shell, a sliding block positioned in the syringe shell and a motor screw rod, wherein the motor screw rod is connected with the sliding block and used for pushing out heparin in the syringe shell to realize injection.

In some embodiments, the housing comprises a plastic back plate and a metal bending plate, the plastic back plate and the metal bending plate enclose to form a closed structure, the metal bending plate is provided with a blood pump, a waste liquid pump, a dialysis liquid pump and a replacement liquid pump, the plastic back plate is provided with a fan and an air outlet, and the fan is used for blowing air into the closed structure, so that hot air in the closed structure flows out of the air outlet.

In some embodiments, a pressure monitoring joint is also provided on the second side of the housing, the pressure monitoring joint comprising: an arterial pressure monitoring joint, a venous pressure monitoring joint, a filter front pressure monitoring joint and a waste liquid pressure monitoring joint.

With respect to the background art described above, the portable CRRT device provided in the embodiments of the present application includes a housing, and a blood pump, a waste liquid pump, a dialysate pump, and a replacement liquid pump provided in the housing, where the blood pump and the waste liquid pump are both located on a first side of the housing, the dialysate pump and the replacement liquid pump are located on a second side of the housing, the housing is further provided with a first measurement container and a second measurement container, the first measurement container is communicated with the dialysate pump and the replacement liquid pump, the first measurement container is used for measuring a volume of dialysate or replacement liquid, the second measurement container is communicated with the waste liquid pump, the second measurement container is used for measuring a volume of waste liquid, and both the first measurement container and the second measurement container are located between the first side and the second side of the housing; the end face of the shell, which is close to the first side, is provided with a heater, and the heater is used for heating the treatment liquid so that the heated treatment liquid enters the dialysis liquid pump and/or the replacement liquid pump through the first measuring container.

Above-mentioned portable CRRT equipment, with blood pump and waste liquid pump both being located the first side of casing, dialysis liquid pump and replacement liquid pump are located the second side of casing, and first measurement container and second measurement container both are located between the first side and the second side of casing, have optimized the equipment structure for CRRT equipment possesses portability, and first measurement container and second measurement container all can measure solution volume at the removal in-process, thereby have realized portability, and all can use under jolting, rocking and vibration environment. In addition, in this application, heat the treatment liquid earlier, get into the first measuring vessel and then pump through the dialysis liquid pump (or substitution liquid pump) and send into corresponding container in, so can reduce the quantity and the volume of heater greatly, lightened weight.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present application, and that other drawings may be obtained according to the provided drawings without inventive effort to a person skilled in the art.

Fig. 1 is a schematic structural diagram of a first angle of a portable CRRT device according to an embodiment of the present application;

fig. 2 is a schematic structural diagram of a second angle of the portable CRRT device according to the embodiment of the present application;

fig. 3 is a schematic structural diagram of a third angle of the portable CRRT device according to the embodiment of the present application;

fig. 4 is a schematic structural diagram of a fourth angle of the portable CRRT device according to the embodiment of the present application;

fig. 5 is a schematic structural diagram of a heater of the portable CRRT device according to the embodiment of the present application;

fig. 6 is a schematic structural diagram of functional components of a portable CRRT device according to an embodiment of the present application;

fig. 7 is a schematic structural diagram of a portable CRRT device in a non-use state according to an embodiment of the present application;

fig. 8 is a schematic structural diagram of a first measurement container and a second measurement container of the portable CRRT device according to the embodiment of the present application.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

In order to better understand the aspects of the present application, a further detailed description of the present application will be provided below with reference to the accompanying drawings and detailed description.

Referring to fig. 1 to 8 of the accompanying drawings, the portable CRRT device provided in the embodiment of the present application includes a housing, and a blood pump 201, a waste liquid pump 202, a dialysate pump 203 and a replacement liquid pump 204 provided in the housing.

Taking the orientation shown in fig. 1 of the specification as an example, the blood pump 201 and the waste liquid pump 202 are vertically distributed and are located on the right side of the housing, and the dialysate pump 203 and the replacement liquid pump 204 are also vertically distributed and are located on the left side of the housing. The blood pump 201, the waste liquid pump 202, the dialysate pump 203 and the replacement liquid pump 204 are peristaltic pumps for pumping corresponding liquid, generally speaking, the volume of the blood pump 201 is larger than that of the other three pumps, the volumes of the other three pumps are the same, the four pumps are all provided with pump covers, the opening directions of the blood pump 201 and the pump covers of the waste liquid pump 202 are consistent, the opening directions of the dialysate pump 203 and the pump covers of the replacement liquid pump 204 are consistent, and the opening directions of the pump covers of the blood pump 201 (or the waste liquid pump 202) are opposite, and the two pump covers are arranged on two sides of the main panel of the shell.

The shell can also be provided with a blood leakage detector 12, the blood leakage detector 12 is positioned below the waste liquid pump 202, the blood content in the waste liquid is detected through optics (infrared), the blood content in the waste liquid reaches a certain proportion, and an alarm signal is transmitted. In addition, a pipe clamp 13 can be arranged above the substitution liquid pump 204, and the pipe clamp 13 is used for fixing the dialysis liquid and substitution liquid outlet pipelines, so that the pipeline arrangement is convenient.

The housing is further provided with a first measuring vessel 101 and a second measuring vessel 102, the first measuring vessel 101 being in communication with the dialysate pump 203 and the substitution liquid pump 204, the first measuring vessel 101 being for measuring the volume of dialysate or substitution liquid, the second measuring vessel 102 being in communication with the waste liquid pump 202, the second measuring vessel 102 being for measuring the volume of waste liquid, both the first measuring vessel 101 and the second measuring vessel 102 being centrally arranged.

Because four pumps set up in the both sides of casing main panel in pairs, capacity kettle balance system subassembly 4 sets up between four pumps, makes the pipeline arrange more reasonable on the one hand, convenient operation, on the other hand makes and arranges more reasonable compactness between the whole module part, make full use of space, reduces the complete machine volume.

The left end face of the housing is provided with a heater 3, the heater 3 being used for heating the treatment fluid such that the heated treatment fluid enters the dialysate pump 203 and/or the substitution liquid pump 204 via the first measuring container 101.

In contrast to prior art CRRT devices, heating of the dialysate and the substitution fluid typically requires pumping, i.e., the dialysate (or substitution fluid) is pumped by a dialysate pump (or substitution fluid pump), followed by heating of the fluid, thus requiring two heaters or a single bulk heater. In the CRRT apparatus provided in the embodiment of the present application, the therapeutic liquid is heated first, and then pumped into the corresponding container by the dialysate pump 203 (or the substitution liquid pump 204) after entering the first measurement container 101, so that the number and the volume of the heaters can be greatly reduced. The single small heater 3 arranged on the left side panel is matched with the infrared temperature sensor 305, so that the accuracy of the liquid heating temperature is ensured, and the weight is reduced.

The structure to the casing, it can set up to the rectangle, and the casing includes plastics backplate and metal bent plate, and metal bent plate is semi-closed form, and plastics backplate and metal bent plate enclose into to be the enclosed construction, and blood pump 201, waste liquid pump 202, dialysis liquid pump 203 and replacement liquid pump 204 are installed to the metal bent plate, and plastics backplate is equipped with fan 14 and air outlet 1401, and fan 14 is used for blowing to the enclosed construction inside to make the inside hot air of enclosed construction flow out by air outlet 1401.

The plastic backboard and the metal bending plate of the shell are not integrally processed, but are cut into 6 surfaces, the plastic backboard can be assembled through the clamping columns and the metal bending plate, different metal plates of the metal bending plate can be connected through screws and rivets, and the shell meets the requirements of improving the structural strength and reducing the weight, and meanwhile, the insulation of the equipment shell and the electromagnetic compatibility of the equipment are guaranteed. It can be seen that the plastic backboard is adopted to help reduce the weight of the whole machine, and the conductive metal paint is sprayed on the inner surface of the plastic backboard, so that the electromagnetic compatibility of the equipment is ensured.

The plastic backboard is provided with a cooling fan 14, a power socket 15 and a battery switch 16, the cooling fan 14 blows air towards the inside of the equipment, hot air is discharged from an air outlet 1401, the power socket 15 can be provided with the power switch 1501 to realize switch operation, and the battery switch 16 can switch a lithium battery arranged in the equipment.

The interior of the housing may also be provided with a controller that is coupled to the blood pump 201, the waste fluid pump 202, the dialysate pump 203, the substitution pump 204, and the like, thereby effecting the treatment process. The top of the shell can be further provided with a display 1, the display 1 is connected with the controller, the display 1 can be specifically a touch screen, the screen can be directly clicked to set and operate, the display 1 can be turned over and closed at will within 0-135 degrees, and the display can be closed in a non-use state. The upper surface of the shell can be also provided with a handle 17, and the handle 17 can be turned over within 0-90 degrees for carrying and transporting equipment.

The heater 3 may specifically include a housing 301, a base 302, and a heating body 304, where the base 302 is connected to the housing, the housing 301 is rotationally connected to the base 302, the housing 301 and the base 302 may form a receiving chamber, and the heating body 304 may be a ceramic heating plate, and disposed on inner sides of the housing 301 and the base 302, for heating a therapeutic liquid bag located in the receiving chamber.

Three ceramic heating plates can be evenly distributed on the inner sides of the shell 301 and the base 302, six ceramic heating plates in total are used for heating two sides of a therapeutic liquid bag filled with therapeutic liquid, a thermistor is arranged on the back of each ceramic heating plate to monitor the temperature, and a heat insulation layer is arranged inside the heater 3 for heat insulation; in addition, the infrared temperature sensor 305 can be used for measuring the temperature of the liquid outlet of the therapeutic liquid bag, and the infrared temperature sensor is matched with a thermistor in the heater 3, so that the heating temperature precision of the therapeutic liquid is ensured. A kettle clamp 306 can be arranged above the heater 3 and used for fixing a temperature measuring liquid storage kettle in the consumable, so that the pipeline arrangement is facilitated.

The heater 3 may further be provided with a switch lock 303, the switch lock 303 is provided on the housing 301 or the base 302, and the closing of the housing 301 and the base 302 is achieved by the switch lock 303.

To the left side terminal surface of casing, can also be equipped with parts such as hanging liquid frame 9, specifically, set up first annular mounting 903 and second annular mounting 904 respectively in the upper and lower direction of casing, hang liquid frame 9 and insert in first annular mounting 903 and the second annular mounting 904 in proper order, hang liquid frame 9 and be telescopic branch, can highly in a certain limit regulation, lock the height through star knob 901, hang liquid frame 9 and can be equipped with a plurality of couples 902 for hanging treatment liquid, but the biggest bearing 5kg treatment liquid, under the non-state of using, can draw out hanging liquid frame 9 from first annular mounting 903 and second annular mounting 904 and accomodate.

The right side terminal surface of casing can be equipped with pressure monitoring joint 7, and pressure monitoring joint 7 includes: the arterial pressure monitoring connector 701, venous pressure monitoring connector 702, pre-filter pressure monitoring connector 703 and waste liquid pressure monitoring connector 704 are used for monitoring the pressure of corresponding liquid in the pipeline, and different color pressure connector sleeves and letter marks can be used for distinguishing.

The housing is further provided with a therapeutic liquid three-way valve 401 and a waste liquid three-way valve 402, the therapeutic liquid three-way valve 401 is arranged at the bottom of the first measuring container 101 for communicating the first measuring container 101 with the dialysate pump 203 and the substitution liquid pump 204, and the waste liquid three-way valve 402 is arranged at the bottom of the second measuring container 102 for communicating the second measuring container 102 with the waste liquid pump 202.

The therapeutic liquid three-way valve 401 and the waste liquid three-way valve 402 are used for switching actions, for example, in operation, the liquid inside the first measurement container 101 increases, the liquid inside the second measurement container 102 decreases, and after the liquid inside the first measurement container 101 is filled, switching can be performed by the therapeutic liquid three-way valve 401 so that the liquid inside the first measurement container 101 decreases and the liquid inside the second measurement container 102 increases.

The capacity kettle balance system component 4 can comprise a lower limit liquid level sensor 403, an upper limit liquid level sensor 404, a safety limit liquid level sensor 405, a protection door 406, a treatment liquid kettle air suction connector 407, a waste liquid kettle air suction connector 408 and the like besides the treatment liquid three-way valve 401 and the waste liquid three-way valve 402, and meanwhile, an electromagnetic valve and an air suction pump which are connected with the air suction connector are arranged in the equipment.

An upper limit liquid level sensor 404 is arranged at the top of the first measuring container 101 and the second measuring container 102, a lower limit liquid level sensor 403 is arranged at the bottom of the first measuring container 101 and the second measuring container 102, and a safety limit liquid level sensor 405 is arranged above the upper limit liquid level sensor 404. The protection door 406 is rotatably connected to the housing, and the protection door 406 is used for shielding the first measuring container 101, the second measuring container 102, the upper limit liquid level sensor 404, the lower limit liquid level sensor 403 and the safety limit liquid level sensor 405.

The volume method is adopted to measure and control the liquid balance, the volume kettle with fixed volume is utilized, the interior of the volume kettle is equally divided into four kettles, two kettles are a first measuring container 101, the other two kettles are a second measuring container 102, the volumes of liquid inlet and outlet are respectively measured and compared by the first measuring container 101 and the second measuring container 102, and the result of weighing measurement is equivalently achieved. A liquid level sensor is respectively arranged at the upper end and the lower end of each small kettle, the liquid volume between the lower limit liquid level sensor 403 and the upper limit liquid level sensor 404 is the volume of each kettle for metering liquid (or liquid out) each time, and the three-way valve is switched by the treatment liquid three-way valve 401 and the waste liquid three-way valve 402 to control the liquid to enter and exit the small-capacity kettle; the controller communicates spacing liquid level sensor 404 and spacing liquid level sensor 403 down, utilize spacing liquid level sensor 404 to measure the top liquid level of first measurement container and second measurement container, utilize spacing liquid level sensor 403 to measure the bottom liquid level of first measurement container and second measurement container down, the controller can calculate through top liquid level and bottom liquid level and obtain the volume of feed liquor and/or play liquid, the volume method measurement control liquid balance that this application adopted has abandoned among the prior art and has adopted balanced chamber, electronic weighing or volumetric pump measurement control liquid balance's mode, on the one hand reduce the volume and the weight of complete machine, on the other hand make equipment can be applied to the relief under the special environment, even under the environment of jolting, liquid balance precision liquid can reach a very high standard.

In some embodiments, the right side end face of the housing is provided with a functional component 6, the functional component 6 comprising:

a bubble detecting member 601 for observing bubbles in the venous line;

a blood detecting member 602 for prompting the end of the venous line blood drawing or the end of the blood return;

pinch valve 603 for closing off the venous line;

and the detecting piece 604 is used for detecting whether the venous line is clamped in place or not.

The size of the air bubble volume or the existence of the air bubble in the back transfusion blood can be detected through the air bubble detection part 601, when the air bubble detection part 601 detects that the air bubble exists in the liquid (blood) in the pipeline, an alarm signal is transmitted, and the equipment can carry out audible and visual alarm.

In the blood drawing stage and the blood return stage, the blood detection part 602 can be used for detection work, namely, when blood is drawn before treatment starts, the blood drawn from a human body enters a pipeline and is mixed with liquid in the pipeline, and when the blood content in a venous pipeline reaches a certain proportion, the blood detection part 602 transmits an alarm signal to prompt the end of blood drawing; when blood returns after treatment is finished, the blood returns to the human body, and when the blood content in the venous line drops to a certain proportion, the blood detection part 602 also transmits an alarm signal to prompt the blood return to be finished.

The working principle of the blood detecting member 602 is the same as that of the above-described blood leakage detector 12, the blood detecting member 602 detects the color of the liquid in the pipeline, the liquid in the pipeline is colorless and transparent at first, gradually fills the liquid in the pipeline and then gradually turns red, when the liquid in the pipeline is detected to contain a certain volume of blood, an alarm signal is transmitted, the device sends out an audible and visual alarm, and generally the function is used in the blood drawing stage before the treatment of the device begins, and the end of the blood drawing is prompted.

Pinch valve 603 shut-off function: when the bubble detection function and the blood detection function are matched, and an alarm signal is generated, the pinch valve 603 starts to stop the venous line.

The detecting member 604 can detect whether the venous line is clamped in place, and in particular, the detecting member 604 can be used to detect whether the venous line is mounted in the limit groove, so as to ensure reliable mounting of the venous line.

In some embodiments, the right side end face of the housing is provided with a heparin pump 5, the heparin pump 5 being disposed immediately adjacent to the functional component 6, the heparin pump 5 comprising: the syringe housing 501, a slider 502 located inside the syringe housing 501 and a motor lead screw connected to the slider 502 for pushing out heparin inside the syringe housing 501 to achieve injection.

The controller in the casing receives the instruction from the display 1, and on the one hand, the blood pump 201, the waste liquid pump 202, the dialysate pump 203, the substitution liquid pump 204, the heater 3, the capacity pot balancing system component 4 and the heparin pump 5 are mobilized, and on the other hand, the controller receives an alarm signal to deal with abnormal conditions such as stopping the operation of the related pump body, clamping the pipeline of the functional component 6, or controlling to give an audible and visual alarm.

Besides, the dialyzer fixing clip 8 is connected with the fixing piece 801 through a quick-release pin, and can be quickly detached in a non-use state, and the dialyzer fixing clip 8 and the fixing piece 801 can be arranged on the right side end face of the shell, so that in a use state, at most two dialyzers or blood perfusion devices can be clamped. The blood pot fixing frame 10 is arranged close to the dialyzer fixing clamp 8, the blood pot fixing frame 10 is fixed on the shell through a torque hinge, can be folded at will within 0-90 degrees, can be retracted and closed in a non-use state, and is unfolded during use to fix the venous pot and the arterial pot in consumable materials. The tray 11 is fixed on the right panel of the device through a torque hinge, can be turned over and closed at will within 0-90 degrees, can be retracted and closed in a non-use state, and can be unfolded when in use, so that waste liquid bags or other small objects can be placed. In combination with the above, based on the removability of the dialyzer fixing clip 8 and the hanging rack 9, the blood pot fixing rack 10, the tray 11, the display 1 and the handle 17 can be turned over and closed in a non-use state, so that the size of the device is reduced, the device is convenient to carry, and the schematic diagram of the device layout in the non-use state is shown in fig. 7.

For the bottom of the shell, a foot pad 18 and a rotary foot pad 19 can be arranged, the rotary foot pad 19 is arranged at the bottom of the shell through a foot pad fixing metal plate 1901 and a plunger 1902, the foot pad fixing metal plate 1901 can be fixedly connected with the bottom of the shell through the plunger 1902, the rotary foot pad 19 can be screwed out or retracted relative to the foot pad fixing metal plate 1901, and a plunger limiting metal plate 1903 is used for fixing two foot pad fixing metal plates 1901; when the treatment environment is not leveled, the rotary foot pad 19 can be rotated out, so that the gravity center of the equipment can be ensured to fall in the middle of the four foot pads, and the stable placement of the equipment is ensured.

Compared with the existing CRRT equipment, the portable CRRT equipment provided by the embodiment of the application fully utilizes the left panel, the front panel, the right panel and the upper panel of the rectangular shell, lays out main components required by the CRRT equipment, meets the requirements of a basic treatment mode of CRRT, and achieves the aims of portability and small volume of the whole machine on the basis.

It should be noted that in this specification relational terms such as first and second are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.

The portable CRRT device provided in the present application is described in detail above. Specific examples are set forth herein to illustrate the principles and embodiments of the present application, and the description of the examples above is only intended to assist in understanding the methods of the present application and their core ideas. It should be noted that it would be obvious to those skilled in the art that various improvements and modifications can be made to the present application without departing from the principles of the present application, and such improvements and modifications fall within the scope of the claims of the present application.

Claims

1. The portable CRRT equipment comprises a shell and a blood pump, a waste liquid pump, a dialysis liquid pump and a replacement liquid pump which are arranged on the shell, and is characterized in that the blood pump and the waste liquid pump are arranged on a first side of the shell, the dialysis liquid pump and the replacement liquid pump are arranged on a second side of the shell, the shell is further provided with a first measuring container and a second measuring container, the first measuring container is communicated with the dialysis liquid pump and the replacement liquid pump, the first measuring container is used for measuring the volume of dialysis liquid or replacement liquid, the second measuring container is communicated with the waste liquid pump, the second measuring container is used for measuring the volume of waste liquid, and the first measuring container and the second measuring container are arranged between the first side and the second side of the shell; the end face of the shell, which is close to the first side, is provided with a heater, and the heater is used for heating the treatment liquid, so that the heated treatment liquid enters the dialysis liquid pump and/or the replacement liquid pump through the first measuring container.

2. The portable CRRT apparatus of claim 1, wherein the heater comprises:

the seat body is connected with the shell;

3. The portable CRRT device of claim 2, wherein the housing or the case is further provided with a switch lock for closing the housing and the case.

4. The portable CRRT apparatus of claim 1, wherein the housing is further provided with a therapeutic fluid three-way valve and a waste fluid three-way valve, the therapeutic fluid three-way valve being disposed at the bottom of the first measurement container for communicating the first measurement container with the dialysate pump and the replacement liquid pump, the waste fluid three-way valve being disposed at the bottom of the second measurement container for communicating the second measurement container with the waste liquid pump.

5. The portable CRRT apparatus of claim 1, wherein the top and bottom of the first and second measurement containers are provided with an upper limit level sensor and a lower limit level sensor, respectively, and a safety limit level sensor is further provided above the upper limit level sensor.

6. The portable CRRT apparatus of claim 5, wherein the housing is rotatably provided with a protective door for shielding the first measurement container, the second measurement container, the upper limit level sensor, the lower limit level sensor and the safety limit level sensor.

7. The portable CRRT device of claim 1, wherein an end face of the housing adjacent to the second side is provided with a functional assembly comprising:

the bubble detection piece is used for observing bubbles in the venous line;

a pinch valve for closing off the venous line;

8. The portable CRRT apparatus of claim 7, wherein an end face of the housing adjacent the second side is provided with a heparin pump disposed immediately adjacent the functional assembly, the heparin pump comprising: the syringe casing, be located inside slider and the motor lead screw of syringe casing, the motor lead screw is connected the slider is used for with heparin release in the syringe casing is in order to realize the injection.

9. The portable CRRT apparatus of claim 1, wherein the housing comprises a plastic back plate and a metal bending plate, the plastic back plate and the metal bending plate enclose a closed structure, the metal bending plate is provided with the blood pump, the waste liquid pump, the dialysis liquid pump and the replacement liquid pump, the plastic back plate is provided with a fan and an air outlet, and the fan is used for blowing air into the closed structure, so that hot air in the closed structure flows out from the air outlet.

10. The portable CRRT apparatus of claim 1, wherein a pressure monitoring joint is further provided on the second side of the housing, the pressure monitoring joint comprising: an arterial pressure monitoring joint, a venous pressure monitoring joint, a filter front pressure monitoring joint and a waste liquid pressure monitoring joint.