Blood purification device and blood purification system

Abstract

A blood purification device (1) is configured by being divided into a plurality of cells (3, 4), at least one cell (3) of the plurality of cells (3, 4) is configured so as to have a storage unit (7) for storing calibration data (91) for the cell (3), and when the cell (3) is connected to another cell (4), the cell (3) can share the calibration data (91) with the other cell (4).

Description

TECHNICAL FIELD

[0001] The present application relates to a blood purification device and a blood purification system. BACKGROUND

[0002] As a known blood purification device that performs blood purification treatment, there is known an integrated blood purification device that integrally has a dialysate supply and discharge portion that supplies and discharges dialysate to a blood purification apparatus, and an extracorporeal circulation portion that circulates blood of a patient through the blood purification apparatus.

[0003] Further, prior art document information related to the present application includes Patent Literature 1.

[0004] [Prior Art Document]

[0005] [Patent Literature]

[0006] [Patent Literature 1] JP Laid-open Patent Publication No. 2016-502911 SUMMARY

[0007] [Problems to be Solved by the Invention]

[0008] The present inventors are studying a separation-type blood purification device that is divided into a plurality of units in order to improve maintainability. The blood purification device that is divided into a plurality of units can achieve exchange-type maintenance in which a unit that needs maintenance is exchanged for a unit that has been maintained, thereby greatly improving maintainability. However, when the unit is exchanged, there is a problem in that it takes time to set up because the sensor and the actuator need to be recalibrated.

[0009] Therefore, an object of the present application is to provide a separation-type blood purification device that can shorten the setup time.

[0010] [Means for Solving the Problems]

[0011] A blood purification device according to an embodiment of the present application is divided into a plurality of units, and at least one of the units is configured to have a storage portion that stores calibration data of the unit, and is capable of sharing the calibration data with other units when the unit is connected to the other units.

[0012] A blood purification system according to an embodiment of the present application includes a blood purification device that is divided into a plurality of units, and a network device that is configured to be capable of communicating with at least one of the units and has a storage portion that stores calibration data of a prescribed unit, and at least one of the units of the blood purification device has a control portion that acquires the calibration data of the other units connected thereto through the network device when the unit is connected to the other units.

[0013] [The effects of the invention]

[0014] According to the present invention, a separate blood purification device and a blood purification system that can shorten the setup time can be provided. Attached Figure Description

[0015] [ Figure 1A The figure shown is a perspective view of the appearance of a blood purification device according to one embodiment of the present invention, with the extracorporeal circulation unit installed in the dialysate supply and drainage unit.

[0016] [ Figure 1B The figure shown is a perspective view of the appearance of a blood purification device according to an embodiment of the present invention, with the extracorporeal circulation unit detached from the dialysate supply and discharge unit.

[0017] [ Figure 2 This is a general structural diagram illustrating one embodiment of the blood purification device of the present invention.

[0018] [ Figure 3 This diagram illustrates the details of the control and storage sections of each unit.

[0019] [ Figure 4 This is a flowchart illustrating the control process when setting up a blood purification device.

[0020] [ Figure 5 This is a flowchart illustrating the control flow of the calibration process.

[0021] [ Figure 6 This is a schematic diagram illustrating the general structure of a blood purification system according to one embodiment of the present invention. Detailed Implementation

[0022] [Implementation Mode]

[0023] The embodiments of the present invention will be described below with reference to the accompanying drawings.

[0024] Figure 1A The diagram showing the appearance of the blood purification device of this embodiment is a perspective view of the extracorporeal circulation unit mounted on the dialysate supply and discharge unit. Figure 1B This is a three-dimensional view of the extracorporeal circulation unit detached from the dialysate supply and drainage unit. Figure 2 This is a general structural diagram of the blood purification device in this embodiment.

[0025] like Figure 1A , Figure 1B and Figure 2As shown, the blood purification device 1 is a device that performs blood purification treatment by the blood purification apparatus 2, and has a dialysate supply / discharge unit 3 that supplies dialysate to the blood purification apparatus 2 while discharging discharge liquid from the blood purification apparatus 2, and an extracorporeal circulation unit 4 that has an extracorporeal circulation section 41 that circulates the blood of a patient extracorporeally through the blood purification apparatus 2. That is, the blood purification device 1 of the present embodiment is configured by dividing into a plurality of units. Also, in this case, a case in which the dialysate supply / discharge unit 3 and the extracorporeal circulation unit 4 are divided into two units will be described, but the number of units divided is not limited to this, and for example, a structure in which the pure water manufacturing section 31 described later is provided as an independent unit can also be adopted.

[0026] (Blood purification apparatus 2)

[0027] The blood purification apparatus 2, also referred to as a dialyzer, internally contains a blood purification membrane (a hollow fiber type hemodialysis membrane or hemodiafiltration membrane, or a flat membrane type hemodialysis membrane or hemofiltration membrane). The blood purification apparatus 2 has a blood inlet 2a for introducing blood, and a blood outlet 2b for discharging the introduced blood, and a dialysate inlet 2c for introducing dialysate, and a dialysate outlet 2d for discharging the introduced dialysate. In the blood purification apparatus 2, the blood is purified by bringing the blood into contact with the dialysate through the blood purification membrane. In the present embodiment, the blood purification apparatus 2 is attached to the extracorporeal circulation unit 4 in a freely detachable manner by a blood purification apparatus fixing jig 21. However, the installation position of the blood purification apparatus 2 is not limited to this, and can be installed on the dialysate supply / discharge unit 3 or a dedicated stand or the like.

[0028] (Dialysate supply / discharge unit 3)

[0029] The dialysate supply / discharge unit 3 includes a pure water manufacturing section 31, a dialysate preparation section 32, and a water removal control section 33. In addition, the dialysate supply / discharge unit 3 also has a dialysate supply / discharge unit side pipe 30 for transporting dialysate and discharge liquid. The dialysate supply / discharge unit side pipe 30 includes a supply side pipe 30a for supplying dialysate to the blood purification apparatus 2, and a discharge side pipe 30b for discharging discharge liquid from the blood purification apparatus 2.

[0030] The pure water manufacturing section 31 is provided on the supply side pipe 30a, and is configured to, for example, remove impurities from tap water supplied from the outside through the supply side pipe 30a using a reverse osmosis membrane (RO membrane) to manufacture pure water (RO water). At this point, the pure water manufacturing section 31 can be omitted, and the configuration can be such that pure water is supplied to the dialysate supply / discharge unit 3 from the outside.

[0031] The dialysate preparation section 32 is provided on the supply side pipe 30a and is configured to prepare dialysate from pure water supplied from the pure water production section 31 through the supply side pipe 30a and a dialysate agent made of a concentrated solution or a powder. In this regard, the dialysate preparation section 32 can be omitted, and the configuration can be such that dialysate is supplied to the dialysate supply and discharge unit 3 from an external dialysate supply device or a bag, or the like.

[0032] The water removal control section 33 is configured to control the amount of water removed from blood and includes a balance control mechanism 331 configured to send liquid such that the amount of dialysate supplied to the blood purifier 2 is equal to the amount of liquid discharged and a water removal pump 332. The balance control mechanism 331 is provided across the supply side pipe 30a from the dialysate preparation section 32 to the blood purifier 2 and the discharge side pipe 30b extending from the blood purifier 2 and leading into the dialysate supply and discharge unit 3. The balance control mechanism 331 is configured by, for example, a double pump or the like, and two equal pump chambers are maintained in equal amounts of liquid supply and discharge by reciprocating motion of a piston.

[0033] The discharge side pipe 30b is provided with a bypass pipe 30c that bypasses the balance control mechanism 331, and the bypass pipe 30c is provided with the water removal pump 332. By driving the water removal pump 332, the amount of liquid discharged can be increased to be greater than the amount of dialysate supplied to the blood purifier 2, and water can be removed from blood. By controlling the driving of the water removal pump 332, the amount of water removed from blood can be controlled. In this regard, the specific configuration of the water removal control section 33 is not limited to that shown in the drawing, and the configuration can be such that, for example, the bypass pipe 30c and the water removal pump 332 are omitted, the flow rates of dialysate and liquid discharge are controlled by the balance control mechanism 331, and the difference between the flow rates of dialysate and liquid discharge is used to control the amount of water removal.

[0034] The supply side pipe 30a and the discharge side pipe 30b of the water removal control section 33 on the blood purifier 2 side extend to the outside of the dialysate supply and discharge unit 3, and the end portions of the supply side pipe 30a and the discharge side pipe 30b extending to the outside are connected to the blood purifier 2. More specifically, the end portion (downstream end portion) of the supply side pipe 30a is connected to the dialysate inlet 2c of the blood purifier 2, and the end portion (upstream end portion) of the discharge side pipe 30b is connected to the dialysate outlet 2d of the blood purifier 2. The discharge side pipe 30b extending from the water removal control section 33 to the opposite side (downstream side in the dialysate flow) of the blood purifier 2 extends to the outside of the dialysate supply and discharge unit 3 and is discharged to the outside of the dialysate supply and discharge unit 3. In addition, it is not limited thereto, and a liquid discharge tank that stores liquid discharge can be provided inside the dialysate supply and discharge unit 3.

[0035] Thus, in the present embodiment, the pipes for flowing dialysate and discharge liquid (here, the supply-side pipe 30a and the discharge-side pipe 30b) are not passed through the extracorporeal circulation unit 4, but are configured in a manner that directly connects the dialysate supply and discharge unit 3 and the blood purification device 2. That is, the extracorporeal circulation unit 4 is not provided with pipes through which dialysate or discharge liquid flows. Thus, the pipes for liquid that connect the dialysate supply and discharge unit 3 and the extracorporeal circulation unit 4 become unnecessary, and thus, the operability is improved, and a low cost is sought by simplifying the structure. Further, the pipes for dialysate and discharge liquid (dialysate supply and discharge unit-side pipes 30) are high in running cost if they are used in a disposable manner, and thus, it is desirable to use them as fixed pipes that are cleaned and disinfected and then reused.

[0036] Although not shown in the drawings, the dialysate supply and discharge unit 3 can further be provided with: a mechanism that adjusts the temperature of dialysate, a mechanism that degasses dissolved oxygen in dialysate, a filter that removes microparticles (e.g., endotoxins) in dialysate, a blood leakage detector that detects blood leakage, and a mechanism that irradiates dialysate with ultraviolet rays after passing through the blood purification device 2 to measure solute concentration and calculate dialysis efficiency, and the like. Further, the dialysate supply and discharge unit 3 can further include a dialysate regeneration section that regenerates used dialysate. The dialysate regeneration section includes, for example, a sorber that removes ammonia and an injection section that injects an injection liquid for adjusting the composition of dialysate.

[0037] The dialysate supply and discharge unit 3 is heavier than the extracorporeal circulation unit 4 described later. Thus, in order to facilitate the movement of the dialysate supply and discharge unit 3 and improve the convenience and operability thereof, it is preferable to provide a movement mechanism 34 for moving the dialysate supply and discharge unit 3 on the ground on the dialysate supply and discharge unit 3. By providing the movement mechanism 34, the exchange-type maintenance described later can be more easily performed, and thus, the maintainability is further improved. In the present embodiment, a roller 341 is provided on the bottom of the dialysate supply and discharge unit 3, and a handle 342 for holding when moving the dialysate supply and discharge unit 3 is provided on the side of the dialysate supply and discharge unit 3 (see FIG. 6). Figure 1A and Figure 1B ) Further, the specific structure of the movement mechanism 34 is not limited thereto.

[0038] Although not shown in the drawings, the dialysate supply and discharge unit 3 is externally supplied with power. In this regard, it can be configured so that a backup power source such as a battery is mounted in the dialysate supply and discharge unit 3, so that power supply is performed from the backup power source when the external power supply is interrupted during blood purification treatment. Further, it can be configured so that power is supplied from the dialysate supply and discharge unit 3 to the extracorporeal circulation unit 4.

[0039] Further, the dialysate supply and discharge unit 3 is equipped with a second control section 62 and a second storage section 72 for controlling the dialysate supply and discharge unit 3. Details of these second control section 62 and second storage section 72 will be described later. Further, the dialysate supply and discharge unit 3 is also provided with a second alarm device 35 for detection of abnormalities, etc. The second alarm device 35 is provided with, for example, a light-emitting device or a buzzer, and can issue an alarm by light or sound.

[0040] (Extracorporeal circulation unit 4)

[0041] The extracorporeal circulation unit 4 includes an extracorporeal circulation section 41 having a blood conduit (blood circuit) 410 through which blood of the patient C is extracorporeally circulated.

[0042] The blood conduit 410 is composed of, for example, a tube having flexibility, etc. The blood conduit 410 includes an arterial side blood conduit 410a that guides blood collected from a blood vessel of the patient C to the blood inlet 2a of the blood purifier 2, and a venous side blood conduit 410b that returns blood discharged from the blood outlet 2b of the blood purifier 2 to the patient C. In the present embodiment, the blood conduit 410 is detachably provided to the extracorporeal circulation unit 4. Thus, the blood conduit 410 can be used once and discarded, so that maintenance can be improved. Further, the blood conduit 410 can be replaced with a new one when the blood purifier 2 is replaced with a new one. Figure 1A and Figure 1B The blood conduit 410 is omitted in the blood purifier 2.

[0043] The extracorporeal circulation section 41 is provided on the arterial side blood conduit 410a and has a liquid feeding pump 411 that circulates blood. The liquid feeding pump 411 is composed of, for example, a peristaltic pump that flows blood to the blood purifier 2 side by squeezing the conduit. Further, the extracorporeal circulation section 41 is provided on the venous side blood conduit 410b and has a venous pressure detector 412 that measures pressure of blood flowing in the blood conduit 410, and a bubble detector 413 that detects bubbles in blood. The bubble detector 413 is composed of, for example, a pair of ultrasonic vibration elements (oscillation mechanism and reception mechanism) composed of piezoelectric elements. Further, the venous side blood conduit 410b is provided with a flow path occlusion mechanism 414 that occludes the venous side blood conduit 410b and interrupts extracorporeal circulation of blood when the bubble detector 413 detects occurrence of an abnormality such as a bubble.

[0044] In the blood purifier 1 of the present embodiment, the extracorporeal circulation unit 4 is independently constituted from the dialysate supply and discharge unit 3. The extracorporeal circulation unit 4 is equipped with a first control section 61 and a first storage section 71 that can control the dialysate supply and discharge unit 3 and the extracorporeal circulation unit 4. Details of the first control section 61 and the first storage section 71 will be described later.

[0045] The extracorporeal circulation unit 4 is configured to be detachable from the dialysate supply and discharge unit 3 (see Figure 1A and Figure 1B ). Thus, it can be used in various layouts as appropriate, for example, the extracorporeal circulation unit 4 can be disposed only in the vicinity of the patient C, while the dialysate supply and discharge unit 3 is disposed at a more distant location, and the like. Figure 1A and Figure 1B The case where the extracorporeal circulation unit 4 is attached to the dialysate supply and discharge unit 3 is shown, but is not limited thereto. For example, the two units 3, 4 can be attached in a left-right or front-back arrangement.

[0046] Further, in the blood purification apparatus 1, when the extracorporeal circulation unit 4 is attached to the dialysate supply and discharge unit 3, a fixing mechanism 5 for fixing the extracorporeal circulation unit 4 and the dialysate supply and discharge unit 3 to each other is provided. Thus, when the blood purification apparatus 1 is moved, or even if the blood purification apparatus 1 is inadvertently bumped by a person or the like, the extracorporeal circulation unit 4 can be inhibited from falling off the dialysate supply and discharge unit 3. The specific structure of the fixing mechanism 5 is not limited, and for example, a fixing mechanism 5 that can be fixed with one key, such as a buckle mechanism, can be used. Further, Figure 1A and Figure 1B The fixing mechanism 5 is omitted in

[0047] Further, the extracorporeal circulation unit 4 has a monitor 42 that displays the dialysis state, and an operation section 43 for performing blood purification treatment operation. As shown in Figure 1A and Figure 1B , in the present embodiment, the monitor 42 is disposed so as to protrude from the upper portion of the extracorporeal circulation unit 4, but the position and attachment layout of the monitor 42 are not limited thereto. For example, a large monitor 42 can be provided so as to cover the entire surface of the extracorporeal circulation unit 4. Further, in the present embodiment, the operation section 43 is disposed on both sides of the monitor 42, but the position and layout of the operation section 43 are not limited thereto. Further, the monitor 42 can be configured as a touch panel, so that the monitor 42 functions as the operation section 43. By providing the monitor 42 and the operation section 43 on the extracorporeal circulation unit 4, which is relatively light and is disposed close to the patient C, the patient C can more easily confirm the treatment state or perform operation, thereby improving convenience.

[0048] Further, the monitor 42 and the operation section 43 can be configured separately from the extracorporeal circulation unit 4, and can be configured to communicate with the first control section 61 of the extracorporeal circulation unit 4 for display and operation. In this case, for example, the monitor 42 and the operation section 43 can be configured by a dedicated operation terminal, or can be configured by a smartphone or a tablet, or the like. Further, the dialysate supply and discharge unit 3 can also be equipped with the monitor 42 and the operation section 43.

[0049] In addition, the extracorporeal circulation unit 4 is also equipped with a first alarm device 44 for detecting abnormalities. The first alarm device 44 includes, for example, a light-emitting device or a buzzer, which emits an alarm through light or sound.

[0050] (Control unit 6 and storage unit 7 of each unit 3 and 4)

[0051] like Figure 3 As shown, the blood purification apparatus 1 of this embodiment is configured such that at least one of the multiple units 3 and 4 constituting the blood purification apparatus 1 (here, the dialysate supply and drainage unit 3) has a storage unit 7 that stores calibration data 91 and operating data 92 of that unit 3. When the unit 3 is connected to other units (here, the extracorporeal circulation unit 4), it can share the calibration data 91 and operating data 92 with the other units 4. In this embodiment, each of the two units 3 and 4 is equipped with a control unit 6 and a storage unit 7. Hereinafter, the control unit 6 and storage unit 7 of the extracorporeal circulation unit 4 will be referred to as the first control unit 61 and the first storage unit 71, and the control unit 6 and storage unit 7 of the dialysate supply and drainage unit 3 will be referred to as the second control unit 62 and the second storage unit 72. The control units 61 and 62 are implemented by appropriately combining a processing unit such as a CPU, memory, software, interface, communication unit, etc. In addition, the storage units 71 and 72 are implemented by designated storage areas of memory or storage devices. In this embodiment, non-volatile memory is used to construct the storage units 71 and 72.

[0052] The control units 61 and 62 of the two units 3 and 4 each have an operation control unit 81, a calibration processing unit 82, and a connection confirmation unit 83. Hereinafter, the parts mounted on the extracorporeal circulation unit 4 will be referred to as the first operation control unit 811, the first calibration processing unit 821, and the first connection confirmation unit 831, and the parts mounted on the dialysate supply and discharge unit 3 will be referred to as the second operation control unit 812, the second calibration processing unit 822, and the second connection confirmation unit 832.

[0053] Further, the storage section 71, 72 of the two units 3, 4 respectively stores calibration data 91, operation data 92, a comparison database 93, and an identification ID 94 of the unit. The calibration data 91 is data including calibration-related information of calibration data of various sensors, actuators, pumps, and the like included in the unit. The operation data 92 is data including information of operation of the unit, and specifically, for example, includes information that a so-called disinfection process has been completed, various information related to operation such as that dialysis solution has been injected to the pipe. The comparison database 93 is a database for judging whether or not a connected unit can be connected to the unit, and stores information of a model of a unit that can be connected to the unit and the like. The identification ID 94 includes information of an individual identification number, a model, a manufacturing number, a software version, a treatable type, whether or not an optional device is installed, and the like of the unit. Hereinafter, each data stored in the first storage section 71 of the extracorporeal circulation unit 4 is referred to as first calibration data 911, first operation data 921, a first comparison database 931, and a first identification ID 941, and each data stored in the second storage section 72 of the dialysis solution supply and discharge unit 3 is referred to as second calibration data 912, second operation data 922, a second comparison database 932, and a second identification ID 942.

[0054] The first control section 61 of the extracorporeal circulation unit 4 constitutes a main control section of the blood purification device 1. The first operation control section 811 controls the extracorporeal circulation unit 4 while communicating with the second control section 62 of the dialysis solution supply and discharge unit 3, and controls the dialysis solution supply and discharge unit 3 through the second control section 62. The first operation control section 811 stores control contents (operation-related information) thereof in the first storage section 71 as the first operation data 921. Further, the first operation data 921 is data including control contents (operation-related information) of the extracorporeal circulation unit 4. The first calibration data 911 is data including calibration-related information of the extracorporeal circulation unit 4.

[0055] The first operation control section 811 acquires the second calibration data 912 and the second operation data 922 of the dialysate supply and discharge unit 3, and controls the dialysate supply and discharge unit 3 on the basis of the acquired (i.e., shared) second calibration data 912 and second operation data 922. Further, the second operation data 922 is data containing the contents controlled by the second control section 62, i.e., the contents of control of the dialysate supply and discharge unit 3 (information related to operation). Further, the second calibration data 912 is data containing information related to calibration of the dialysate supply and discharge unit 3. By sharing the second calibration data 912, the need for calibration operation each time a new dialysate supply and discharge unit 3 is connected is eliminated, and thus the setting time can be shortened. Further, by sharing the second operation data 922, for example, a so-called use method in which the dialysate supply and discharge unit 3 is connected to the extracorporeal circulation unit 4 in a state in which sterilization processing or preparation processing for blood purification treatment has been completed, and treatment is promptly started, can be used, and thus convenience is improved. Further, the timing of sharing the second calibration data 912 or the second operation data 922 is not particularly limited, and for example, the data can be automatically shared at the time of activation of the extracorporeal circulation unit 4, or the data can be shared at the time point at which the user performs an operation of data sharing.

[0056] The first calibration processing section 821 performs calibration processing of calibration of various sensors, actuators, and pumps of the extracorporeal circulation unit 4, and stores the result of calibration as the first calibration data 911 in the first storage section 71.

[0057] The first connection confirmation section 831 identifies the connected dialysate supply and discharge unit 3, and determines whether it is connectable to the unit. The first connection confirmation section 831 communicates with the second control section 62, acquires the second identification ID 942 of the dialysate supply and discharge unit 3, and determines whether the connected dialysate supply and discharge unit 3 is connectable to the unit with reference to the first comparison database 931. The first connection confirmation section 831, when the determination result is that the dialysate supply and discharge unit 3 is a unit that is not connectable, for example, issues an alarm by the first alarm device 44, or displays warning information on the monitor 42. Also, in the present embodiment, whether it is connectable to the unit is determined by reference to the first comparison database 931, but is not limited thereto, and for example, information (information on which it is determined whether it is connectable to the unit) such as the presence or absence of a type of a unit that can be distinguished or a device that is installed as an accessory, etc., is included in the second identification ID 942 in advance, and the first connection confirmation section 831 is configured to determine whether it is connectable to the unit on the basis of the information included in the second identification ID 942. In this case, the first comparison database 931 can be omitted.

[0058] The second control section 62 of the dialysate supply and discharge unit 3 functions as a sub control section. The second operation control section 812 controls the dialysate supply and discharge unit 3 in accordance with an instruction from the first operation control section 811. Further, although it is also possible to directly control the dialysate supply and discharge unit 3 by the first control section of the extracorporeal circulation unit 4, in this case, the number of control lines connecting the two units 3, 4 becomes large, and the connection structure of the two units 3, 4 becomes very complicated. By mounting the control section 6 (second control section 62) also on the dialysate supply and discharge unit 3 side, it is possible to reduce the number of control lines connecting the two units 3, 4, and to simplify the connection structure of the two units 3, 4.

[0059] The second operation control section 812 is preferably configured to function normally even when the dialysate supply and discharge unit 3 is operated alone (in a state separated from the extracorporeal circulation unit 4). In this way, the dialysate supply and discharge unit 3 can perform operations such as cleaning and disinfection alone. The second operation control section 812 stores the contents of its control (information related to operation) as second operation data 922 in the second storage section 72.

[0060] The second calibration processing section 822 performs calibration processing such as calibration of various sensors, actuators, and pumps of the dialysate supply and discharge unit 3, and stores the results of the calibration as second calibration data 912 in the second storage section 72.

[0061] The second connection confirmation section 832 recognizes the connected extracorporeal circulation unit 4, and determines whether it can be connected to the present unit. The second connection confirmation section 832 communicates with the first control section 61, acquires the first identification ID 941 of the extracorporeal circulation unit 4, and determines whether the connected extracorporeal circulation unit 4 can be connected to the present unit, with reference to the second comparison database 932. The second connection confirmation section 832 issues an alarm, for example, by the second alarm device 35, when the determination result is that the extracorporeal circulation unit 4 is a unit that cannot be connected. Further, the first identification ID 941 is caused to include information (information on which it can be determined whether the unit can be connected to the present unit) such as the type of the unit that can be determined, or the presence or absence of a device installed as an accessory, and the second connection confirmation section 832 is configured to determine whether the unit can be connected to the present unit, based on the information included in the first identification ID 941. In this case, the second comparison database 932 can be omitted.

[0062] In this way, in the present embodiment, both the first control section 61 as the main control section and the second control section 62 as the sub control section determine whether the unit is a connectable unit, and inappropriate combinations are suppressed by double checking. However, this is not limiting, and for example, it is also possible to determine whether the unit is a connectable unit only by the first control section 61 as the main control section.

[0063] (Control flow)

[0064] Figure 4is a control flow when the blood purification apparatus 1 is set. The first control section 61 executes the control flow of Figure 4 , for example, at the time of power-on of the blood purification apparatus 1. As shown in Figure 4 , first, in step S101, the first connection confirmation section 831 determines whether the dialysate supply and discharge unit 3 is connected. In step S101, whether the dialysate supply and discharge unit 3 is connected can be determined, for example, on the basis of whether communication with the second control section 62 is possible. If it is determined as "No" in step S101, after the warning information is displayed on the monitor 42 in step S115, the power of the blood purification apparatus 1 is turned off in step S116 and the process is ended.

[0065] When it is determined as "Yes" in step S101, in step S102, the first connection confirmation section 831 communicates with the second control section 62 of the dialysate supply and discharge unit 3, acquires the second identification ID 942, and refers to the first comparison database 931 to compare whether the connected dialysate supply and discharge unit 3 is connectable to the present unit. Then, in step S103, it is determined whether the comparison result is that the dialysate supply and discharge unit 3 is connectable to the present unit. If it is determined as "No" in step S103, after the warning information is displayed on the monitor 42 in step S115, the power of the blood purification apparatus 1 is turned off in step S116 and the process is ended. Further, in step S116, the power of the blood purification apparatus 1 can not be automatically turned off, but the user can be prompted to manually turn off the power by displaying information prompting the power to be turned off on the monitor 42 or the like.

[0066] When it is determined as "Yes" in step S103, in step S104, the first operation control section 811 acquires the second calibration data 912 of the dialysate supply and discharge unit 3, and confirms the calibration contents of the dialysate supply and discharge unit 3 on the basis of the second calibration data 912. Further, in step S105, it is determined whether the result of the confirmation is that the calibration has been completed. When it is determined as "Yes" in step S105, step S109 is entered. When it is determined as "No" in step S105, in step S106, an input interface in which it is selected whether adjustment is to be performed again or the device is to be detached is displayed on the monitor 42 to accept the selection input of the user. Further, in step S107, it is determined whether "adjustment again" is input. When it is determined as "No" in step S107, that is, in the case where the device is selected to be detached, after the warning information is displayed on the monitor 42 in step S115, the power of the blood purification apparatus 1 is turned off in step S116 and the process is ended. When it is determined as "Yes" in step S107, that is, in the case where adjustment again is selected, calibration processing is performed in step S108.

[0067] In the calibration processing in step S108, the second control section 62 performs Figure 5the control flow. First, in step S108a, the second calibration processing section 822 performs calibration work such as calibration of various sensors, actuators, pumps, and the like of the dialysate supply and discharge unit 3 according to a pre-set calibration procedure, and in step S108b, stores the result of the calibration work as second calibration data 912 in the second storage section 72. Thereafter, the process returns to step S109. Figure 4

[0068] In step S109, the first operation control section 811 acquires the second operation data 922 of the dialysate supply and discharge unit 3, and confirms the operation contents of the dialysate supply and discharge unit 3 based on the second operation data 922. Subsequently, in step S110, an input interface for selecting agreement or rejection (whether to perform operation synchronization) of the synchronization target is displayed on the monitor 42, and a selection input by the user is accepted. Also, in step S111, it is determined whether agreement has been input. If it is determined that "Yes" in step S111, after the operation data is integrated (synchronization of operation data) in step S112, the setting process ends. If it is determined that "No" in step S111, that is, in the case of selection rejection, in step S113, an input interface for selecting agreement or rejection of the start in the initial state is displayed on the monitor 42, and a selection input by the user is accepted. Then, in step S114, it is determined whether agreement has been input. If it is determined that "Yes" in step S114, operation synchronization is not performed, and the setting process ends directly. If it is determined that "No" in step S114, that is, in the case of selection rejection, in step S115, a warning message is displayed on the monitor 42, and in step S116, the power of the blood purification device 1 is turned off and the process ends.

[0069] Further, here, a case where the blood purification device 1 is composed of two units, the extracorporeal circulation unit 4 and the dialysate supply and discharge unit 3, is described, but the number of units is not limited thereto, and the blood purification device 1 can be composed of three or more units. Further, here, a case where the extracorporeal circulation unit 4 is the main unit and the dialysate supply and discharge unit 3 is the sub unit is described, but this is not limiting. For example, when the dialysate supply and discharge unit 3 is the main unit, the first calibration data 911 of information related to calibration of the extracorporeal circulation unit 4 can be configured to be sharable with the dialysate supply and discharge unit 3. That is, at least information related to calibration of other units should be shared with the main unit.

[0070] (EFFECTS OF THE EMBODIMENTS)

[0071] ​As described above, the blood purification device 1 of the present embodiment is configured such that at least one of the plurality of units 3, 4 (here, the dialysate supply and discharge unit 3) that constitute the blood purification device 1 has the storage section 7 that stores the calibration data 91 and the operation data 92 of the unit 3, and is capable of sharing the calibration data 91 and the operation data 92 with the other unit 4 (here, the extracorporeal circulation unit 4) when the unit 3 is connected to the other unit 4.

[0072] By storing the calibration data 91 in the storage section 7 of the present unit and making it sharable with the other unit, for example, even when the dialysate supply and discharge unit 3 is replaced with a new one, the operation of calibration at the time of setting can be omitted, thereby shortening the setting time. Further, by sharing the operation data 92, for example, it is possible to prepare for treatment in advance using only the dialysate supply and discharge unit 3, and to start treatment quickly by connecting the dialysate supply and discharge unit 3 to the extracorporeal circulation unit 4, thereby improving convenience.

[0073] (Other Embodiments)

[0074] In the above-described embodiments, the case where the calibration data 91 and the operation data 92 are stored in the storage section 7 of the present unit has been described. As shown in Figure 6 the drawing, it is also possible to configure such that the calibration data 91 and the operation data 92 are stored in the external network device 101 such as a server, and are shared among the units by the network device 101. Hereinafter, the entire system including the blood purification device 1 and the network device 101 will be referred to as a blood purification system 100.

[0075] The network device 101 is configured to be capable of communicating with the plurality of units (the extracorporeal circulation unit 4 and the dialysate supply and discharge unit 3) that constitute the blood purification device 1 through a network 102 such as the Internet. The network device 101 includes a third control section 101a and a third storage section 101b. The third control section 63 is realized by appropriately combining an arithmetic element such as a CPU, a memory, software, an interface, a communication unit, and the like. Further, the third storage section 73 is realized by using a designated storage area of a memory or a storage device.

[0076] The third control section 63 communicates with the control sections 61, 62 of the units 3, 4 of the blood purification device 1, and performs control of transmission and reception of various data and the like. In the blood purification system 100, the operation control section 81 and the calibration processing section 82 of each unit 3, 4 transmit (upload) the operation data 92 and the calibration data 91 of the present unit to the network device 101 together with the identification ID 93. The third control section 63 associates the received operation data 92 and calibration data 91 with the identification ID 93, and stores them in the third storage section 73.

[0077] Further, the operation control section 81 of each unit 3, 4 acquires the calibration data 91 and the operation data 92 of the other units connected to the present unit through the network device 101. Thus, sharing of the calibration data 91 and the operation data 92 is achieved, and as in the above-described embodiment, shortening of the setting time and improvement of the convenience are achieved. The connection confirmation section 83 of each unit 3, 4 can acquire the identification ID 93 of the other units connected to the present unit through the network device 101, or through communication between the direct control sections 61, 62.

[0078] Further, in Figure 6 In the dialysate supply and discharge unit 3 as a sub-unit, the second calibration data 91 or the second operation data 92 is stored in the second storage section 72, but this is not limiting. The dialysate supply and discharge unit 3 can not store the second calibration data 91 or the second operation data 92, and only the second calibration data 91 or the second operation data 92 can be stored in the network device 101. The same applies to the extracorporeal circulation unit 4. That is, the network device 101 can be used as an external storage device for each unit 3, 4.

[0079] Further, a plurality of blood purification devices 1 can be connected to one network device 101. This allows integrated management of the calibration data 91 and the like of the plurality of blood purification devices 1, thereby reducing the time and effort required for management.

[0080] Further, the connection confirmation section 83 can be omitted from each unit 3, 4 of the blood purification device 1, and the network device 101 can have a function of confirming whether the units 3, 4 connected to each other can be connected. In this case, the third storage section 73 of the network device 101 is equipped with a comparison database 93, and the third control section 63 determines whether the units 3, 4 connected to each other can be connected (whether there is an inappropriate combination) by referring to the comparison database 93 based on the identification IDs 94 of the units 3, 4 connected to each other.

[0081] Further, if the operation data 92 is not shared, the network device 101 can be configured to communicate only with the extracorporeal circulation unit 4 as a master unit. In this case, the extracorporeal circulation unit 4 acquires the identification ID 93 of the connected dialysate supply and discharge unit 3, and transmits the acquired identification ID 93 to the network device 101. In the third storage section 73 of the network device 101, the calibration result obtained in advance at the time of factory shipment or the like is stored in association with the identification ID 93 as calibration data 91. The third control section 63 transmits the calibration data 91 corresponding to the received identification ID 93 to the extracorporeal circulation unit 4. Thus, sharing of the calibration data 91 of the dialysate supply and discharge unit 3 is achieved. Further, when recalibration of the dialysate supply and discharge unit 3 is required, it is only necessary to upload the calibration data 91 obtained based on the calibration from the extracorporeal circulation unit 4 to the network device 101. Therefore, the network device 101 only needs to be configured to be able to communicate with at least one of the plurality of units 3, 4 that constitute the blood purification device 1.

[0082] (Variations)

[0083] Although not mentioned in the above-described embodiments, each unit 3, 4 of the blood purification device 1 can be configured to store connection history data as information of a history of the identification ID 93 of another unit connected to the unit in the storage section 7 of the unit. In this way, the administrator can refer to the connection history of each unit 3, 4, for example, when analyzing the cause of a failure or the like.

[0084] Further, each unit 3, 4 of the blood purification device 1 can be configured to store unit information data in the storage section 7 of the unit, the unit information data being information indicating the state of the unit, such as the replacement date of a consumable included in the unit, the use time, the total operation time of the unit, the operation time since the last maintenance, and the like. Thus, it is possible to easily determine whether a consumable needs to be replaced or whether maintenance is required, thereby improving the maintainability.

[0085] (Summary of Embodiments)

[0086] Next, based on the technical ideas grasped by the above-described embodiments, the description will be made with reference to the symbols and the like in the embodiments. However, each symbol and the like in the following description is not limited to a component or the like that specifically represents a constituent element in the claims in the embodiments.

[0087] [1] A blood purification device (1) that is configured by being divided into a plurality of units (3, 4), at least one of the plurality of units (3) being configured to have a storage section (7) that stores calibration data (91) of the unit (3), and being able to share the calibration data (91) with another of the units (4) when the unit (3) is connected to the other unit (4).

[0088] [2] The blood purification apparatus according to [1], wherein the storage section (7) stores therein operation data (92) including information related to operation of the unit (3), and the unit (3) having the storage section (7) is configured to be able to share the operation data (92) with the other unit (4) when the unit (3) is connected to the other unit (4).

[0089] [3] The blood purification apparatus according to [1], wherein the unit (3) having the storage section (7) has a control section (6) for controlling operation of the unit (3), and the control section (6) stores control contents thereof in the storage section (7) as the operation data (92).

[0090] [4] The blood purification apparatus according to any one of [1] to [3], wherein, as the plurality of units (3, 4), there are a dialysate supply and discharge unit (3) that supplies dialysate to a blood purifier (2) while discharging a discharge liquid from the blood purifier (2), and an extracorporeal circulation unit (4) that has an extracorporeal circulation section (41) that circulates blood of a patient extracorporeally through the blood purifier (2), at least the dialysate supply and discharge unit (3) has the storage section (7) that stores the calibration data (91) of the unit, and is configured to be able to share the calibration data (91) with the extracorporeal circulation unit (4) when the dialysate supply and discharge unit (3) is connected to the extracorporeal circulation unit (4).

[0091] [5] A blood purification system (100) including a blood purification apparatus (1) that is divided into a plurality of units (3, 4) and a network device (101) that is configured to be able to communicate with at least one unit (4) of the plurality of units (3, 4) and has a storage section (7) that stores calibration data (91) of a prescribed unit (3), at least one unit (4) of the blood purification apparatus (1) having a control section (6) that acquires the calibration data (91) of another unit (3) connected thereto through the network device (101) when the unit (4) is connected to the other unit (3).

[0092] The above describes embodiments of the present application, but the above-described embodiments are not limited to the application related to the claims. In addition, it should be noted that the combination of all features described in the embodiments is not limited to being necessary for solving the problem of the application. Also, the present application can be implemented with appropriate modifications without departing from the scope of the gist thereof.

[0093] [Explanation of symbols]

[0094] 1 Blood purification device

[0095] 2 Blood purification apparatus

[0096] 3 Dialysate supply and discharge unit

[0097] 4 Extracorporeal circulation unit

[0098] 41 Extracorporeal circulation section

[0099] 6 Control section

[0100] 61 First control section

[0101] 62 Second control section

[0102] 7 Storage section

[0103] 71 First storage section

[0104] 72 Second storage section

[0105] 81 Operation control section

[0106] 82 Calibration processing section

[0107] 83 Connection confirmation section

[0108] 91 Calibration data

[0109] 92 Operation data

[0110] 93 Matching database

[0111] 100 Blood purification system

[0112] 101 Network device

Claims

1. A blood purification apparatus which is configured by being divided into a plurality of units, at least one of the units of the plurality of units is configured to have a storage section which stores calibration data of the unit, and is capable of sharing the calibration data with other units when the unit is connected to the other units.

2. The blood purification device of claim 1, wherein, the storage section stores operation data including information related to operation of the unit, and the unit having the storage section is configured to be capable of sharing the operation data with other units when the unit is connected to the other units.

3. The blood purification device of claim 2, wherein, the unit having the storage section has a control section for controlling operation of the unit, the control section stores contents of the control as the operation data in the storage section.

4. The blood purification device of claim 1, wherein, as the plurality of units, there are a dialysate supply and discharge unit which supplies dialysate to a blood purifier while discharging discharged liquid from the blood purifier, and an extracorporeal circulation unit which has an extracorporeal circulation section which circulates blood of a patient extracorporeally through the blood purifier, at least the dialysate supply and discharge unit has the storage section which stores the calibration data of the unit, and is configured to be capable of sharing the calibration data with the extracorporeal circulation unit when the dialysate supply and discharge unit is connected to the extracorporeal circulation unit.

5. A blood purification system which includes: a blood purification apparatus which is configured by being divided into a plurality of units; and a network apparatus which is configured to be capable of communicating with at least one of the units of the plurality of units, and has a storage section which stores calibration data of a prescribed unit, at least one of the units of the blood purification apparatus has a control section which acquires the calibration data of other units connected thereto through the network apparatus when the unit is connected to the other units. ​

Images