CN213698224U - Centralized liquid supply conveying system for hemodialysis and hemodialysis system - Google Patents
Centralized liquid supply conveying system for hemodialysis and hemodialysis system Download PDFInfo
- Publication number
- CN213698224U CN213698224U CN202022187526.9U CN202022187526U CN213698224U CN 213698224 U CN213698224 U CN 213698224U CN 202022187526 U CN202022187526 U CN 202022187526U CN 213698224 U CN213698224 U CN 213698224U
- Authority
- CN
- China
- Prior art keywords
- liquid
- liquid level
- detection device
- signal
- hemodialysis
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model provides a hemodialysis is with concentrated confession liquid conveying system and hemodialysis system, including supplying liquid device to and set up a plurality of concentrated confession liquid conveying unit at different floors, every concentrated confession liquid conveying unit includes: the conveying pipeline is respectively connected with the liquid supply device, and the booster pump and the pressure relief device are arranged on the conveying pipeline along the direction far away from the liquid inlet; the first liquid level detection device and the second liquid level detection device are arranged on the outer wall of the pressure release device, the first liquid level detection device is closer to the top of the pressure release device, the first liquid level detection device is used for sending a first signal when detecting that the liquid level is not less than the first liquid level height, and the second liquid level detection device is used for sending a second signal when detecting that the liquid level is not less than the second liquid level height; and the controller is electrically connected with the booster pump, the first liquid level detection device and the second liquid level detection device, and controls the flow of the booster pump when receiving the first signal and/or the second signal.
Description
Technical Field
The disclosure relates to the technical field of hemodialysis, in particular to a centralized liquid supply conveying system for hemodialysis and a hemodialysis system.
Background
Hemodialysis is one of kidney replacement treatment schemes adopted by patients with acute and chronic renal failure, and during hemodialysis, blood in a patient body is drained to the outside of the body, purified by a dialysis machine, and then the purified blood is returned to the patient body. Through hemodialysis, the treatment aims of clearing metabolic waste and redundant water in vivo and maintaining the balance of electrolytes and acid and alkali can be achieved. The dialysis machine is non-pressure liquid supply in the working process, and the automatic liquid supply is realized by a centralized liquid supply conveying system.
In practical application, due to the limitation of field environment, the treatment beds of the dialysis machines may not be on the same floor, so that the barreled liquid and the liquid supply device for supplying liquid to the dialysis machines need to be arranged on each floor, and the investment and construction cost is extremely high.
For realizing the supply of liquid across floors, a plurality of miniature pipeline pumps with 1 meter of lift are connected in series on the liquid supply conveying pipeline to pressurize the dialysate, so that the dialysate is conveyed to a plurality of floors, and pressure reducing valves are installed at liquid inlet positions of dialysis machines on all floors to realize pressure reduction, thereby realizing the non-pressure liquid supply of the dialysis machines. The technical defect is that the arrangement of a pipeline pump or a pressure reducing valve is high in cost and can cause the system to be out of control; although the pressure reducing valve can control the pressure reduction, the pressure reducing valve needs to be repeatedly debugged to achieve the expected effect, and the pressure reducing valve wastes time and labor; bacteria are easy to breed at the joint of the inner cavity of the pipeline pump or the pressure reducing valve, and the health of a patient is possibly influenced.
SUMMERY OF THE UTILITY MODEL
An object of the disclosed embodiment is to provide a hemodialysis is with concentrated solution feed conveying system to realize the non-pressure of cross-floor, reliably supply liquid.
According to an aspect of the embodiments of the present disclosure, there is provided a centralized liquid supply conveying system for hemodialysis, including a liquid supply device, and a plurality of centralized liquid supply conveying units disposed on different floors, wherein a position where the liquid supply device is disposed is located below a liquid supply conveying unit on a lowest floor among the plurality of centralized liquid supply conveying units, and each centralized liquid supply conveying unit includes:
the conveying pipeline is respectively connected with the liquid supply device, and the booster pump and the pressure relief device are arranged on the conveying pipeline;
the first liquid level detection device and the second liquid level detection device are arranged on the outer wall of the pressure release device, the first liquid level detection device is closer to the top of the pressure release device than the second liquid level detection device, the first liquid level detection device is used for sending a first signal when detecting that the liquid level is not less than the first liquid level height, and the second liquid level detection device is used for sending a second signal when detecting that the liquid level is not less than the second liquid level height; and
the controller is electrically connected with the booster pump, the first liquid level detection device and the second liquid level detection device; the controller controls the booster pump to reduce the flow of the liquid entering the delivery pipe when receiving the first signal and the second signal, controls the booster pump to keep the flow of the liquid entering the delivery pipe unchanged when receiving the second signal and not receiving the first signal, and controls the booster pump to increase the flow of the liquid entering the delivery pipe when not receiving the first signal and the second signal.
In some embodiments, the pressure of the liquid exiting the exit port of the delivery conduit is less than or equal to 0.1 kPa.
In some embodiments, the centralized liquid supply delivery system for hemodialysis further comprises a valve arranged on the delivery pipeline and a third liquid level detection device arranged on the top of the outer wall of the pressure relief device, wherein the valve is closer to the liquid inlet of the delivery pipeline than the booster pump, and the third liquid level detection device is used for sending a third signal when detecting that the liquid level reaches a third liquid level height; the valve and the third liquid level detection device are electrically connected with the controller, and the controller controls the booster pump and the valve to be closed when receiving the first signal, the second signal and the third signal.
In some embodiments, the valve is a solenoid valve.
In some embodiments, the centralized liquid supply delivery system for hemodialysis further comprises a flow detection device disposed on the delivery conduit, wherein the flow detection device is closer to the liquid outlet of the delivery conduit than the pressure relief device.
In some embodiments, the pressure relief device is selected from one of a tube, a reservoir, wherein the reservoir comprises a liquid inlet and a liquid outlet.
In some embodiments, the liquid is an acidic solution or a basic solution.
According to another aspect of the disclosed embodiments, there is provided a hemodialysis system including the centralized liquid supply delivery system for hemodialysis of any one of the above technical aspects.
According to the centralized liquid supply conveying system for hemodialysis, liquid is pressurized by the booster pump and then pressure is released in the pressure release device, so that the liquid discharged from the conveying pipeline is micro-pressure or non-pressure, and non-pressure and reliable liquid supply across floors is realized. In addition, the centralized liquid supply conveying system for hemodialysis provided by the disclosure has a simple structure, only one booster pump needs to be arranged in each centralized liquid supply conveying unit, and the cost is far lower than that of a plurality of micro pipeline pumps connected in series on a conveying pipeline; and because each floor is only provided with one booster pump, the probability of the centralized liquid supply conveying system out of control is obviously reduced; in addition, the liquid in each centralized liquid supply conveying unit is always in a flowing state, so that bacteria are not easy to breed in pipelines and other devices, and the health of patients is facilitated.
Of course, not all advantages described above need to be achieved at the same time by a product or method that implements any embodiment of the disclosure.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or the related art, the drawings used in the description of the embodiments of the present disclosure or the related art are briefly introduced below. It is to be understood that the drawings in the following description are merely exemplary of the disclosure, and that other drawings may be derived from those drawings by one of ordinary skill in the art without the exercise of inventive faculty.
FIG. 1 is a schematic view of a centralized liquid supply delivery system for hemodialysis according to some embodiments of the present disclosure;
FIG. 2 is a schematic view of a centralized liquid supply delivery system for hemodialysis according to other embodiments of the present disclosure;
FIG. 3 is a schematic view of a centralized liquid supply delivery system for hemodialysis according to still other embodiments of the present disclosure.
Detailed Description
The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure, and it is obvious that the described embodiments are only a part of the embodiments of the present disclosure, and not all of the embodiments. All other embodiments, which can be derived by one of ordinary skill in the art from the embodiments disclosed herein without making any creative effort, shall fall within the scope of protection of the present disclosure.
Some embodiments of the present disclosure provide a centralized liquid supply conveying system for hemodialysis, including a liquid supply device, and a plurality of centralized liquid supply conveying units disposed on different floors, wherein the liquid supply device 46 is located below a liquid supply conveying unit on the lowest floor among the plurality of centralized liquid supply conveying units, and each centralized liquid supply conveying unit includes:
a conveying pipeline 43 connected with a liquid supply device 46, and a booster pump 42 and a pressure relief device 44 arranged on the conveying pipeline 43, wherein the booster pump 42 is closer to the liquid inlet of the conveying pipeline 43 than the pressure relief device 44, and the maximum cross-sectional area of the inner cavity of the pressure relief device 44 is larger than the cross-sectional area of the conveying pipeline 43;
the first liquid level detection device 451 and the second liquid level detection device 452 are arranged on the outer wall of the pressure release device 44, the first liquid level detection device 451 is closer to the top of the pressure release device 44 than the second liquid level detection device 452, the first liquid level detection device 451 is used for sending a first signal when detecting that the liquid level is not less than the first liquid level height, and the second liquid level detection device 452 is used for sending a second signal when detecting that the liquid level is not less than the second liquid level height; and
a controller electrically connected to the booster pump 42, the first liquid level detection device 451, and the second liquid level detection device 452; the controller controls the booster pump 42 to reduce the liquid flow into the delivery conduit 43 when receiving the first signal and the second signal, controls the booster pump 42 to keep the liquid flow into the delivery conduit 43 constant when receiving the second signal and not receiving the first signal, and controls the booster pump 42 to increase the liquid flow into the delivery conduit 43 when not receiving the first signal and the second signal.
As shown in fig. 1, the liquid supply device 46 is connected to the centralized liquid supply conveying unit 411, the centralized liquid supply conveying unit 412 and the centralized liquid supply conveying unit 413 through pipelines, the floor number of the centralized liquid supply conveying unit 411 is smaller than that of the other two centralized liquid supply conveying units, and the floor number of the floor where the liquid supply device 46 is arranged is smaller than that of the centralized liquid supply conveying unit 411. For example, the liquid supply device 46 may be disposed on the first floor, and the concentrated liquid supply transport unit 411, the concentrated liquid supply transport unit 412, and the concentrated liquid supply transport unit 413 may be disposed on the second floor, the third floor, and the fourth floor, respectively.
In the centralized liquid supply conveying system for hemodialysis, the conveyed liquid is pressurized by the pressurizing pump 42 so as to be conveyed, the pressure relief device 44 can accumulate the liquid because the maximum cross-sectional area of the inner cavity of the pressure relief device 44 is larger than the cross-sectional area of the conveying pipeline 43, the pressure of the liquid is released after the liquid reaches the pressure relief device 44, and finally the liquid discharged from the liquid outlet of the conveying pipeline 43 is micro-pressure or non-pressure, so that the non-pressure conveying requirement of the liquid of partial instruments in the hemodialysis process is met, and the non-pressure, reliable and simultaneous liquid supply of different floors is realized.
The first level detection means 451 and the second level detection means 452 are provided primarily to monitor the level of the liquid in the pressure relief means 44, and thereby regulate the booster pump 42 to control the flow of liquid into the delivery conduit 43. When the liquid level in the pressure relief device 44 reaches the position of the first liquid level detection device 451, i.e., the first liquid level height, the first liquid level detection device 451 can detect the liquid level and send a first signal, and the second liquid level detection device 452 can detect the liquid level and send a second signal. The first liquid level detecting device 451 is disposed closer to the top of the pressure relief device 44, which indicates that there is more liquid in the pressure relief device 44, and in order to avoid the liquid level being higher and generating new pressure in the pressure relief device 44, the pressure pump 42 is controlled to reduce the flow rate of the liquid into the delivery pipe 43, so that the liquid level in the pressure relief device 44 gradually decreases. When the fluid level in the pressure relief device 44 is between the positions of the first fluid level detection device 451 and the second fluid level detection device 452, the first fluid level detection device 451 does not detect the fluid level, and the second fluid level detection device 452 may detect the fluid level and emit a second signal, i.e., a second fluid level. The liquid level height at this time can not only release the pressure of the liquid just entering the pressure release device 44, but also can not generate new pressure due to the liquid level height, therefore, when the controller receives the second signal and does not receive the first signal, the flow rate of the liquid entering the conveying pipeline 43 by the booster pump 42 is controlled to be unchanged, and the purpose of non-pressure and reliable liquid supply of the present disclosure can be achieved. When the liquid level in the pressure relief device 44 is below the position of the second liquid level detecting device 452, neither the first liquid level detecting device 451 nor the second liquid level detecting device 452 can detect the liquid level, which indicates that the liquid level in the pressure relief device 44 is too low, and the pressure of the liquid newly entering the pressure relief device 44 may not be released in time, so that the pressure boosting pump 42 needs to be controlled to increase the flow rate of the liquid entering the conveying pipeline 43, so as to raise the liquid level in the pressure relief device 44.
Therefore, the centralized liquid supply conveying system for hemodialysis provided by the disclosure can control the flow of the booster pump to realize cross-floor, non-pressure and reliable liquid supply when the controller receives the first signal and/or the second signal, and the centralized liquid supply conveying unit has a simple structure and strong controllability. In addition, the liquid in the centralized liquid supply conveying unit is always in a flowing state, so that bacteria are not easy to breed in pipelines and other devices, and the health of patients is facilitated.
As shown in fig. 1, in some embodiments of the present disclosure, the delivery line 43 is ultimately piped to the dialysis machine 48 to deliver the fluid from the centralized fluid supply delivery system for hemodialysis to the dialysis machine 48. In the present disclosure, there is no particular limitation on the dialysis machine, and a dialysis machine known in the art may be employed as long as the object of the present disclosure can be achieved.
In some embodiments of the present disclosure, the pressure of the liquid discharged from the liquid outlet of the conveying pipeline 43 by the centralized liquid supply conveying system for hemodialysis is less than or equal to 0.1 kPa. Since the dialysis machine 48 needs to supply liquid under no pressure in the working state, otherwise, the dialysis machine cannot work normally, and the pressure of the liquid discharged from the liquid outlet of the conveying pipeline 43 can ensure the normal work of the dialysis machine 48 within the above range.
As shown in fig. 2, in some embodiments of the present disclosure, the centralized liquid supply delivery system for hemodialysis further comprises a valve 47 disposed on the delivery pipe 43 and a third liquid level detection device 453 disposed on top of an outer wall of the pressure relief device 44, the valve 47 is closer to the inlet of the delivery pipe 43 than the booster pump 42, the third liquid level detection device 453 is configured to send a third signal when the liquid level reaches a third liquid level height; the valve 47 and the third liquid level detection device 453 are electrically connected to the controller, and the controller controls the booster pump 42 and the valve 47 to be closed when receiving the first signal, the second signal and the third signal.
When the liquid level in the pressure relief device 44 is too high and reaches the top of the pressure relief device 44, the first liquid level detection device 451, the second liquid level detection device 452 and the third liquid level detection device 453 can detect the liquid level and respectively send out a first signal, a second signal and a third signal to indicate that the pressure relief device 44 is full of liquid, and at the moment, the booster pump 42 and the valve 47 are controlled to be closed, so that the purpose of stopping liquid feeding into the pressure relief device 44 can be realized. For example, the third liquid level detection device 453 and the valve 47 may be arranged such that after the controller receives the first signal and the second signal, the booster pump 42 cannot effectively control the liquid level to rise to fill the pressure release device 44 with liquid when the flow rate of the liquid entering the delivery pipe 43 is reduced, the booster pump 42 and the valve 47 are closed to stop the liquid from entering the pressure release device 44, and the liquid is prevented from being repressurized in the pressure release device 44, thereby ensuring that the connected dialysis machine 48 can normally operate.
In the present disclosure, the first liquid level detection means 451, the second liquid level detection means 452, and the third liquid level detection means 453 are not particularly limited as long as the objects of the present disclosure can be achieved. For example, the first, second, and third liquid level detection means 451, 452, 453 are liquid level sensors.
In some embodiments of the present disclosure, the liquid level sensor is a non-contact liquid level sensor. The non-contact liquid level sensor is adopted, so that the liquid level of strong acid, strong base and other liquids in the closed container can be detected in real time, the detection is not influenced by substances in the liquids, and the detection result is accurate; in addition, the non-contact liquid level sensor is simple to install, does not influence production, is not in direct contact with liquid, is easier to clean and maintain, and has long service life.
In some embodiments of the present disclosure, the setting of the valve 47 may further select to open the valve 47 in the corresponding concentrated liquid supply delivery unit according to actual requirements, so as to supply liquid to the corresponding floor, and thus, independent control of each floor concentrated liquid supply delivery unit is achieved. In the present disclosure, the valve 47 is not particularly limited as long as the object of the present disclosure can be achieved. The valve is, for example, a solenoid valve. In the present disclosure, the solenoid valve is not particularly limited as long as the object of the present disclosure can be achieved. For example, the solenoid valve is an electromagnetic ball valve.
As shown in fig. 3, in some embodiments of the present disclosure, the centralized liquid supply delivery system for hemodialysis further includes a flow detection device 49 disposed on the delivery conduit 43, and the flow detection device is closer to the liquid outlet of the delivery conduit than the pressure release device 44. The flow detection device 49 is electrically connected with the controller, and when the controller receives the first signal and does not receive the second signal, the controller can regulate and control the liquid inlet amount of the booster pump 42 in the same time to enable the liquid inlet amount to be equal to the flow detected by the flow detection device 49, namely, the liquid inlet amount of the liquid inlet and the liquid outlet amount of the liquid outlet of the conveying pipeline 43 are equal, so that a relatively balanced liquid supply mode is formed, and continuous work of the centralized liquid supply conveying system for hemodialysis is facilitated.
In the present disclosure, the flow rate detection device 49 is not particularly limited as long as the object of the present disclosure can be achieved. The flow rate detecting device 49 is, for example, a flow meter.
In some embodiments of the present disclosure, the pressure relief device 44 is not particularly limited as long as the purpose of the present disclosure can be achieved, for example, the pressure relief device 44 is selected from one of a pipe and a liquid storage container, wherein the liquid storage container comprises a liquid inlet and a liquid outlet. The liquid storage container is not particularly limited as long as the object of the present disclosure can be achieved, and for example, the liquid storage container is a liquid storage bottle.
In some embodiments of the present disclosure, the liquid in the centralized liquid supply delivery system for hemodialysis is an acidic solution or a basic solution. In the present disclosure, the acidic solution is not particularly limited as long as the object of the present disclosure can be achieved, and for example, the solute of the acidic solution includes at least one of sodium chloride, potassium chloride, calcium chloride, magnesium chloride, acetic acid, and citric acid. In the present disclosure, the alkaline solution is not particularly limited as long as the object of the present disclosure can be achieved, and for example, the solute of the alkaline solution includes sodium bicarbonate.
According to another aspect of the disclosed embodiments, there is provided a hemodialysis system including the centralized liquid supply delivery system for hemodialysis of any one of the above technical aspects.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
All the embodiments in the present specification are described in a related manner, and the same and similar parts among the embodiments may be referred to each other, and each embodiment focuses on the differences from the other embodiments.
The above are merely preferred embodiments of the present disclosure, and are not intended to limit the scope of the present disclosure. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present disclosure are included in the scope of protection of the present disclosure.
Claims (8)
1. The centralized liquid supply conveying system for hemodialysis is characterized by comprising a liquid supply device and a plurality of centralized liquid supply conveying units arranged on different floors, wherein the liquid supply device is arranged below the liquid supply conveying unit on the lowest floor in the plurality of centralized liquid supply conveying units, and each centralized liquid supply conveying unit comprises:
the conveying pipeline is respectively connected with the liquid supply device, and the booster pump and the pressure relief device are arranged on the conveying pipeline;
the first liquid level detection device and the second liquid level detection device are arranged on the outer wall of the pressure release device, the first liquid level detection device is closer to the top of the pressure release device than the second liquid level detection device, the first liquid level detection device is used for sending a first signal when detecting that the liquid level is not less than the first liquid level height, and the second liquid level detection device is used for sending a second signal when detecting that the liquid level is not less than the second liquid level height; and
the controller is electrically connected with the booster pump, the first liquid level detection device and the second liquid level detection device; the controller controls the booster pump to reduce the liquid flow entering the delivery pipe when receiving the first signal and the second signal, controls the booster pump to keep the liquid flow entering the delivery pipe unchanged when receiving the second signal and not receiving the first signal, and controls the booster pump to increase the liquid flow entering the delivery pipe when not receiving the first signal and the second signal.
2. The centralized liquid supply delivery system for hemodialysis of claim 1, wherein the pressure of the liquid discharged from the liquid outlet of the delivery tube is 0.1kPa or less.
3. The centralized liquid supply delivery system for hemodialysis of claim 1, further comprising a valve disposed on the delivery conduit and a third liquid level detection device disposed on top of the outer wall of the pressure relief device, wherein the valve is closer to the liquid inlet of the delivery conduit than the booster pump, and the third liquid level detection device is configured to send a third signal when the liquid level is detected to reach a third liquid level; the valve and the third liquid level detection device are electrically connected with the controller, and the controller controls the booster pump and the valve to be closed when receiving the first signal, the second signal and the third signal.
4. The centralized liquid supply delivery system for hemodialysis of claim 3, wherein the valve is a solenoid valve.
5. The centralized liquid supply delivery system for hemodialysis of claim 1, further comprising a flow detection device disposed on the delivery conduit, wherein the flow detection device is closer to the liquid outlet of the delivery conduit than the pressure relief device.
6. The centralized liquid supply delivery system for hemodialysis of claim 1, wherein the pressure relief device is selected from one of a tube and a reservoir, wherein the reservoir comprises a liquid inlet and a liquid outlet.
7. The centralized liquid supply delivery system for hemodialysis of any one of claims 1-6, wherein the liquid is an acidic solution or a basic solution.
8. A hemodialysis system comprising the centralized liquid supply delivery system for hemodialysis according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022187526.9U CN213698224U (en) | 2020-09-29 | 2020-09-29 | Centralized liquid supply conveying system for hemodialysis and hemodialysis system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022187526.9U CN213698224U (en) | 2020-09-29 | 2020-09-29 | Centralized liquid supply conveying system for hemodialysis and hemodialysis system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213698224U true CN213698224U (en) | 2021-07-16 |
Family
ID=76796049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022187526.9U Active CN213698224U (en) | 2020-09-29 | 2020-09-29 | Centralized liquid supply conveying system for hemodialysis and hemodialysis system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213698224U (en) |
-
2020
- 2020-09-29 CN CN202022187526.9U patent/CN213698224U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5616305A (en) | Flexible medical hemodialysis packaging unit for the production of concentrated dialysis solution including a device for the same | |
| EP2150290B1 (en) | A device for connecting to a liquid source | |
| EP2641624A1 (en) | Treatment solution delivery in an extracorporeal blood treatment apparatus | |
| JP6705035B2 (en) | Blood processing system | |
| RU2298428C2 (en) | Method and the device for operation with the hemmodiafiltering receiving-withdrawing module | |
| JP3333043B2 (en) | Hydraulic safety circuit for hemodialysis machine | |
| MXPA02007765A (en) | Method and apparatus for monitoring and controlling peritoneal dialysis therapy. | |
| JPH0622608B2 (en) | Equipment for manufacturing and supplying dialysate | |
| US9233196B2 (en) | Method for pre-filling a hemodialysis apparatus | |
| CN101829371B (en) | Hemodialysis system | |
| CN213698224U (en) | Centralized liquid supply conveying system for hemodialysis and hemodialysis system | |
| JP5260638B2 (en) | Blood processing apparatus and method with single needle operation | |
| CN105502696B (en) | A kind of control method of constant pressure water replenishing degassing machine group | |
| CN108712917B (en) | Device for extracorporeal blood treatment and method for operating a device for extracorporeal blood treatment | |
| US6235199B1 (en) | Parallel plumbing supply system | |
| JP4337981B2 (en) | Blood purification equipment | |
| CN201668779U (en) | Hemodialysis system | |
| US9775938B2 (en) | Device for conveying a fluid to a filter unit of a medical treatment apparatus and method for measuring the pressure in the fluid system of such an apparatus | |
| US9662430B2 (en) | Device and method for conveying a fluid to a filter unit of a medical treatment apparatus | |
| CN112618828A (en) | Dialysis machine | |
| CN205387502U (en) | Constant pressure water supplementing degasification unit | |
| CN214159423U (en) | Stirring device and centralized liquid supply system | |
| CN213450796U (en) | Uninterrupted circulating liquid supply system based on factory inspection infusion pump | |
| CN220002541U (en) | Double-chamber liquid storage barrel for supplying dialysate | |
| CN216799021U (en) | Pressure switching device and filtering system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |