Medical devices and medical systems

Abstract

This enables WOL functionality even if the installed CPU or OS does not support hibernation mode. [Solution] The system includes a communication unit including an Ethernet PHY connected to an external control device via a communication cable, a control unit including an Ethernet MAC connected to the Ethernet PHY by a communication line, and a power supply unit that constantly supplies power to the communication unit and switches between supplying and stopping power to the control unit. The Ethernet MAC sets the Ethernet PHY to a wake-on-run startup command waiting state when the power supply by the power supply unit stops, and when the Ethernet PHY receives a wake-on-run startup command from the external control device while in the wake-on-run startup command waiting state, it transmits a power supply instruction to the power supply unit to start supplying power to the control unit.

Description

Technical Field

[0001] The present disclosure relates to a medical device and a medical system used for performing medical practice.

Background Art

[0002] As an example of medical practice, blood purification treatment represented by dialysis treatment is known. For such blood purification treatment, a dialysis system composed of a plurality of medical devices is used. For example, the dialysis system is configured by connecting an RO device, a dissolving device, a dialysate supply device, and a dialysis device (monitoring device) via piping. Each device constituting the dialysis system has an operation unit (input unit) for operating the respective device and a display unit (output unit) for displaying information related to functions, processes, and the like of each device.

[0003] Furthermore, the devices constituting the dialysis system have different applications and functions, and are also installed in different locations. For this reason, medical personnel (such as doctors and nurses) who manage the dialysis system need to move between the devices to drive and control each device, which increases the labor and burden on the medical personnel. From the perspective of reducing such burden, remote control of each device using other control terminals or the like has been performed. For example, in Patent Document 1, it is possible to control the dialysis device using a remote control device owned by the medical personnel.

[0004] By the way, as a technology for remote control between devices, from the perspective of power saving measures, a technology called Wake on LAN (WOL), which remotely turns on the power of a computer connected to a computer network such as a LAN, is known. In recent years, WOL has also been adopted in devices used in the medical field. For example, Patent Document 2 discloses that an imaging device control unit in a radiography system supports WOL, and can remotely switch between a WOL standby state, which is a low power consumption mode, and a power-on state.

Prior Art Literature

[0005] [Patent Document 1] International Patent Publication No. 2018 / 001953 [Patent Document 2] Japanese Patent Publication No. 2022-86333 [Overview of the project] [Problems that the invention aims to solve]

[0006] However, because medical processing functions are crucial for each medical device, conventional medical devices that do not support a wake-up / wait-on mode (suspend mode, sleep mode) may continue to be used as components of a medical system. Furthermore, enabling wake-up / wait-on mode requires improvements to the control device, either the central processing unit (CPU) or the operating system (OS), which increases the cost of each medical device and thus the overall medical system. Moreover, improvements to the CPU or OS may not be possible from the standpoint of reliability or standards for each medical device.

[0007] This disclosure has been made in view of these challenges, and its purpose is to provide a medical device that can realize WOL functionality even when a CPU or OS that does not support hibernation mode is implemented, and a medical system having the same. [Means for solving the problem]

[0008] According to one aspect of the present disclosure, a medical device is provided which is communicably connected to an external control device by Ethernet, comprising: a communication unit including an Ethernet PHY connected to the external control device via a communication cable; a control unit including an Ethernet MAC connected to the Ethernet PHY by a communication line; and a power supply unit that constantly supplies power to the communication unit and switches between supplying and stopping power to the control unit, wherein the Ethernet MAC sets the Ethernet PHY to a wake-on-run startup command standby state when the power supply by the power supply unit is stopped, and the Ethernet PHY, while in the wake-on-run startup command standby state, transmits a power supply instruction to the power supply unit to start supplying power to the control unit when it receives a wake-on-run startup command from the external control device.

[0009] According to one aspect of the present disclosure, a medical system is provided in which a plurality of medical devices are connected to each other in a communicative manner by Ethernet, each of the plurality of medical devices having a communication unit including an Ethernet PHY connected to other medical devices via a communication cable, a control unit including an Ethernet MAC connected to the Ethernet PHY by a communication line, and a power supply unit that constantly supplies power to the communication unit and switches the power supply to and from the control unit, wherein the Ethernet MAC sets the Ethernet PHY to a wake-on-run startup command standby state when the power supply by the power supply unit is stopped, and the Ethernet PHY, while in the wake-on-run startup command standby state, transmits a power supply instruction to the power supply unit to start supplying power to the control unit when it receives a wake-on-run startup command from the other medical device. [Effects of the Invention]

[0010] According to this disclosure, it is possible to provide a medical device that can implement WOL functionality even when a CPU or OS that does not support hibernation mode is implemented, and a medical system having the same.

[0011] The effects described above are merely illustrative for the sake of explanation, and the effects relating to this disclosure are not limited to those described above. In addition to the effects described above, any other effects described herein may be achieved. [Brief explanation of the drawing]

[0012] [Figure 1] This is a schematic diagram showing the mechanical configuration of the blood purification system according to the first embodiment. [Figure 2] This is a schematic diagram showing the communication configuration of the blood purification system according to the first embodiment. [Figure 3] This block diagram shows a schematic representation of the electrical configuration of the RO device in the blood purification system according to the first embodiment. [Figure 4] This block diagram shows a schematic electrical configuration of the agent A dissolving device of the blood purification system according to the first embodiment. [Figure 5] This block diagram shows a schematic electrical configuration of the B agent dissolving device of the blood purification system according to the first embodiment. [Figure 6] This block diagram shows a schematic electrical configuration of the dialysate supply device of the blood purification system according to the first embodiment. [Figure 7] This block diagram shows a schematic electrical configuration of the dialysis apparatus of the blood purification system according to the first embodiment. [Figure 8] This block diagram shows a schematic electrical configuration of a different type of dialysis machine of the blood purification system according to the first embodiment. [Figure 9] This block diagram shows a schematic representation of the electrical configuration for wake-on-run in a blood purification system according to the first embodiment. [Figure 10] This block diagram shows a schematic representation of the electrical configuration for wake-on-run in a blood purification system according to the first embodiment. [Figure 11] This is a sequence diagram showing the flow of each wake-on-run process in the blood purification system according to the first embodiment. [Figure 12]It is a block diagram schematically showing the electrical configuration for wake-on-run in the blood purification system according to the first embodiment. [Figure 13] It is a sequence diagram showing the flow of each wake-on-run process in the blood purification system according to the first embodiment. [Figure 14] It is a block diagram schematically showing the electrical configuration for wake-on-run in the blood purification system according to the second embodiment.

Mode for Carrying Out the Invention

[0013] Hereinafter, various devices and blood purification systems related to blood purification will be described in detail as examples of the medical device and medical system of the present disclosure with reference to the drawings. Note that the present disclosure is not limited to the content described below, and can be arbitrarily modified and implemented without changing the gist of the present disclosure. In addition, the drawings used in each embodiment schematically show various devices related to blood purification, which are examples of the medical device and medical system according to the present disclosure, their component parts, and blood purification units including these, and partial emphasis, enlargement, reduction, or omission are made to deepen understanding, and the scale and shape of each component may not be accurately represented. Furthermore, some numerical values used in each embodiment are merely examples, and can be variously changed as necessary. In the drawings, common components are denoted by the same reference numerals.

[0014] <First Embodiment> (Configuration of Blood Purification System) First, the configuration of a blood purification system, which is an example of the medical system of the present disclosure, will be described with reference to FIGS. 1 and 2. Here, FIG. 1 is a schematic diagram showing the mechanical configuration of the blood purification system 1 according to the present embodiment. In particular, FIG. 1 shows the connection relationship of liquid supply between the respective components constituting the blood purification system 1. FIG. 2 is a schematic diagram showing the communication configuration of the blood purification system 1 according to the present embodiment. In particular, FIG. 2 shows the communication connection relationship between the respective components constituting the blood purification system 1.

[0015] The blood purification system 1 according to the present embodiment is configured to prepare a dialysate of a predetermined concentration from a dialysate stock solution and perform dialysis treatment, which is an example of blood purification treatment for patient H, using the prepared dialysate. To perform dialysis treatment starting from the preparation of such dialysate, the blood purification system 1 has a configuration in which an RO device 10, an agent A dissolving device 20, a B agent dissolving device 30, a dialysate supply device 40, and a plurality of dialysis devices 50, 60 serving as monitoring devices for monitoring dialysis treatment are connected via piping. Here, the plurality of dialysis devices 50, 60 are installed in a dialysis room R1, which is a treatment room at a medical site such as a hospital. On the other hand, the RO device 10, the agent A dissolving device 20, the B agent dissolving device 30, and the dialysate supply device 40 are installed in a machine room R2 located at a position different from the dialysis room R1. Furthermore, in the blood purification system 1 according to the present embodiment, the RO device 10, the agent A dissolving device 20, the B agent dissolving device 30, the dialysate supply device 40, and the dialysis devices 50, 60 form a configuration group that constitutes the blood purification system 1.

[0016] As shown in Figure 1, each device constituting the blood purification system 1 is connected by a group of pipes 2 consisting of multiple pipes. Specifically, the RO device 10 is connected to pipe L1 for introducing raw water and pipe L2 for discharging RO water. The A agent dissolving device 20 is connected to pipe L2 for introducing RO water supplied from the RO device 10 and pipe L3 for discharging A concentrate, which is the dialysate concentrate. Furthermore, the B agent dissolving device 30 is connected to pipe L2 for introducing RO water supplied from the RO device 10 and pipe L4 for discharging B concentrate, which is the dialysate concentrate. The dialysate supply device 40 is connected to pipe L2 for introducing RO water supplied from the RO device 10, pipe L3 for introducing A concentrate supplied from the A agent dissolving device 20, pipe L4 for introducing B concentrate supplied from the B agent dissolving device 30, and pipe L5 for discharging dialysate. In addition, the dialysis machine 50 is connected to pipe L5 for introducing dialysate supplied from the dialysate supply device 40. Meanwhile, the dialysis machine 60 is connected to a pipe L2 for introducing RO water supplied from the RO unit 10, a pipe L3 for introducing concentrate A supplied from the A agent dissolving unit 20, and a pipe L4 for introducing concentrate B supplied from the B agent dissolving unit 30.

[0017] As shown in Figure 2, the blood purification system 1 has a communication line section 70 that connects each device of the blood purification system 1 to each other in a manner that allows them to communicate with one another. In this embodiment, the communication line section 70 consists of a hub 71 and a LAN cable 72, which is an example of a wired communication cable. Therefore, each device constituting the blood purification system 1 can send and receive various types of information via wired communication through the hub 71 and the LAN cable 72. In other words, in the blood purification system 1, information is sent and received between each device via Ethernet. In particular, in the blood purification system 1 of this embodiment, the function of Wake on LAN (WOL) is realized, and each device can send and receive information related to WOL.

[0018] Furthermore, the blood purification system 1 does not need to be configured so that the WOL function is realized between all devices; it may be configured so that the WOL function is realized only between specific devices. Also, the communication line unit 70 only needs to be able to connect each device so that they can communicate with each other, and other communication devices may be provided instead of the hub 71, or a server may be added.

[0019] In the following, an overview of each device constituting the blood purification system 1 will be described with reference to Figures 1 to 8. Here, Figure 3 is a block diagram showing a schematic of the electrical configuration of the RO device 10 of the blood purification system 1 according to this embodiment. Figure 4 is a block diagram showing a schematic of the electrical configuration of the A agent dissolving device 20 of the blood purification system 1 according to this embodiment. Figure 5 is a block diagram showing a schematic of the electrical configuration of the B agent dissolving device 30 of the blood purification system 1 according to this embodiment. Figure 6 is a block diagram showing a schematic of the electrical configuration of the dialysate supply device 40 of the blood purification system 1 according to this embodiment. Figure 7 is a block diagram showing a schematic of the electrical configuration of the dialysis device 50 of the blood purification system 1 according to this embodiment. Figure 8 is a block diagram showing a schematic of the electrical configuration of another type of dialysis device 60 of the blood purification system 1 according to this embodiment.

[0020] (RO device) The RO unit 10 purifies the raw water supplied from piping L1 to produce dialysis water (purified water), and supplies the purified dialysis water as RO water to the A agent dissolving unit 20, the B agent dissolving unit 30, the dialysate supply unit 40, and the dialysis machine 60 via piping L2. In other words, the RO unit 10 corresponds to the dialysis water purification unit of the blood purification system 1.

[0021] As can be seen from Figures 1 to 3, the RO device 10 includes a control unit 11, a storage unit 12, a power supply unit 13, an input / output unit 14, a communication unit 15, and a purification unit 16. These units are electrically connected to each other via control lines and data lines. This enables the RO device 10 to transmit and receive various signals, data, and information, as well as to perform various controls by the control unit 11.

[0022] The control unit 11 is composed of a CPU (Central Processing Unit) or a GPU (Graphics Processing Unit) and controls various parts of the RO device 10 based on various programs stored in the memory unit 12. Specifically, the control unit 11 reads from the memory unit 12 and executes programs for processing to display various information in the input / output unit 14, processing to send and receive various information via the communication unit 15, and processing to drive the purification unit 16 to purify raw water, or programs for running the OS. The control unit 11 may be composed of a single GPU or CPU, or it may be composed of a combination of multiple CPUs or GPUs.

[0023] The memory unit 12 consists of ROM, RAM, non-volatile memory, HDD, etc. For example, the ROM stores instruction commands as a program for performing the process to purify raw water. The RAM is used to write and read data while the program stored in the ROM is being processed by the control unit 11. The non-volatile memory is a storage device in which data is written and read as a result of the execution of the program, and the data written there is saved even after the execution of the program has finished.

[0024] The power supply unit 13 is a device that supplies the power necessary to start each part. For example, the power supply unit 13 may include a circuit that boosts or lowers the voltage of the power supplied from an outlet in a facility such as a hospital via a power cable to a voltage suitable for use within the device. The power supply unit 13 may also include a power storage device such as a battery.

[0025] The input / output unit 14 has an input unit consisting of a touch panel type input interface and an output unit consisting of a general screen type output interface. In other words, the input / output unit 14 in this embodiment is a touch panel type liquid crystal display (display screen) equipped with an input / output interface. Here, the input detection method by the display may be any method such as capacitive or resistive. Furthermore, the operable area and position on the display may be freely set by the administrator of the RO device 10.

[0026] The communication unit 15 is composed of various electronic components and has a communication circuit. In particular, in this embodiment, the communication unit 15 has an Ethernet PHY, which will be described later. The communication unit 15 also transmits and receives information with other devices installed separately from the RO device 10 via a LAN cable 72 connected to the communication circuit.

[0027] The purification unit 16 has equipment for purifying the supplied raw water to produce dialysis water. For example, the purification unit 16 may include a power supply for the equipment, a pump for supplying raw water to the purification filter or for discharging the purified dialysis water to other devices, a solenoid valve installed in the internal piping, a heater for heating the raw water, an ultraviolet irradiation device for irradiating the raw water with ultraviolet light, various sensors, and other actuators. The configuration of the purification unit 16 will vary depending on the type of RO device 10, and parts may be added or removed as appropriate.

[0028] (Dissolving device for agent A) The Agent A dissolving device 20 mixes RO water supplied from piping L2 with Agent A, a type of dialysis powder drug added by the administrator, to produce a concentrate A, which is a type of dialysis fluid concentrate at a predetermined concentration. The Agent A dissolving device 20 also supplies the prepared concentrate A to the dialysis fluid supply device 40 and the dialysis machine 60 via piping L3.

[0029] As can be seen from Figures 1, 2, and 4, the Agent A dissolving device 20 includes a control unit 21, a storage unit 22, a power supply unit 23, an input / output unit 24, a communication unit 25, and a dissolving unit 26. These units are electrically connected to each other via control lines and data lines. This allows the Agent A dissolving device 20 to transmit and receive various signals, data, and information, as well as to perform various controls by the control unit 21.

[0030] The control unit 21, like the control unit 11 of the RO device 10, is composed of a CPU or GPU and controls the various parts of the A agent dissolving device 20 based on various programs stored in the memory unit 22. Specifically, the control unit 21 reads from the memory unit 22 and executes programs for performing processes such as displaying various information in the input / output unit 24, sending and receiving various information via the communication unit 25, and driving the dissolving unit 26 to produce the A concentrate, or programs for executing the OS.

[0031] The storage unit 22, like the storage unit 12 of the RO device 10, is composed of ROM, RAM, non-volatile memory, HDD, etc. For example, the ROM stores instruction commands as a program for performing the process to produce stock solution A. The RAM is used to write and read data while the program stored in the ROM is being processed by the control unit 21. The non-volatile memory is a storage device in which data is written and read as a result of the execution of the program, and the data written there is saved even after the execution of the program is completed.

[0032] The power supply unit 23, like the power supply unit 13 of the RO system 10, is a device that supplies the power necessary to start each part. For example, the power supply unit 23 may be equipped with a circuit that boosts or lowers the voltage of the power supplied from an outlet in a facility such as a hospital via a power cable to a voltage suitable for use within the device, or it may be equipped with a power storage device such as a battery.

[0033] The input / output unit 24, like the input / output unit 14 of the RO device 10, has an input unit consisting of a touch panel type input interface and an output unit consisting of a general screen type output interface. In other words, the input / output unit 24 in this embodiment is a touch panel type liquid crystal display (display screen) equipped with an input / output interface.

[0034] The communication unit 25, like the communication unit 15 of the RO device 10, is composed of various electronic components and has a communication circuit. In particular, in this embodiment, the communication unit 25 has an Ethernet PHY, which will be described later. The communication unit 25 transmits and receives information with other devices installed separately from the agent dissolving device 20 via a LAN cable 72 connected to the communication circuit.

[0035] The dissolution unit 26 has equipment for mixing the supplied RO water with the introduced agent A to produce a stock solution A of a predetermined concentration. For example, the dissolution unit 26 may include a power supply for the equipment, a stirrer for agitating the RO water and agent A, a pump for introducing RO water or discharging the prepared stock solution A toward other devices, a solenoid valve provided in the internal piping, various sensors, and other actuators. The configuration of the dissolution unit 26 will vary depending on the type of agent A dissolution device 20, and parts may be added or removed as appropriate.

[0036] (Dissolving device for agent B) The B agent dissolving device 30 mixes RO water supplied from piping L2 with B agent, a type of dialysis powder drug added by the administrator, to produce a B concentrate, which is a type of dialysis fluid concentrate at a predetermined concentration. The B agent dissolving device 30 also supplies the prepared B concentrate to the dialysis fluid supply device 40 and the dialysis machine 60 via piping L4.

[0037] As can be seen from Figures 1, 2, and 5, the B agent dissolving device 30 includes a control unit 31, a storage unit 32, a power supply unit 33, an input / output unit 34, a communication unit 35, and a dissolving unit 36. These units are electrically connected to each other via control lines and data lines. This allows the B agent dissolving device 30 to transmit and receive various signals, data, and information, as well as to perform various controls by the control unit 31. Although there are differences in detail between the B agent dissolving device 30 and the A agent dissolving device 20 because the B agent dissolving device 30 dissolves a different material, its basic configuration is the same as that of the A agent dissolving device 20. Therefore, a detailed explanation of each component of the B agent dissolving device 30 is omitted.

[0038] In this embodiment of the blood purification system 1, the B agent dissolving device 30 is provided as a separate device from the A agent dissolving device 20, but it may also be provided as a single dissolving device. For example, in the dissolving device, a bottle containing a mixture of solvent A and solvent B may be set, and the A solvent, B solvent, and RO water may be mixed to prepare the dialysis stock solution.

[0039] (dialysate supply device) The dialysate supply device 40 mixes RO water supplied from pipe L2, stock solution A supplied from pipe L3, and stock solution B supplied from pipe L4 to produce dialysate of a predetermined concentration. The dialysate supply device 40 also supplies the prepared dialysate to the dialysis machine 50 via pipe L5.

[0040] As can be seen from Figures 1, 2, and 6, the dialysis fluid supply device 40 includes a control unit 41, a storage unit 42, a power supply unit 43, an input / output unit 44, a communication unit 45, and a manufacturing and adjustment processing unit 46. These units are electrically connected to each other via control lines and data lines. This enables the dialysis fluid supply device 40 to transmit and receive various signals, data, and information, as well as to perform various controls by the control unit 41.

[0041] The control unit 41, like the control unit 11 of the RO device 10, is composed of a CPU or GPU and controls various parts of the dialysate supply device 40 based on various programs stored in the memory unit 42. Specifically, the control unit 41 reads from the memory unit 42 and executes programs for processing to display various information in the input / output unit 44, processing to send and receive various information via the communication unit 45, and processing to drive the production and adjustment processing unit 46 to produce dialysate and adjust its concentration, or programs for executing the OS.

[0042] The storage unit 42, like the storage unit 12 of the RO device 10, is composed of ROM, RAM, non-volatile memory, HDD, etc. For example, the ROM stores instruction commands as programs for executing processes to generate dialysate and processes to adjust the concentration of dialysate. The RAM is used to write and read data while the program stored in the ROM is being processed by the control unit 41. The non-volatile memory is a storage device in which data is written and read as a result of the execution of the program, and the data written therein is saved even after the execution of the program has finished.

[0043] The power supply unit 43, like the power supply unit 13 of the RO system 10, is a device that supplies the power necessary to start each part. For example, the power supply unit 43 may be equipped with a circuit that boosts or lowers the voltage of the power supplied from an outlet in a facility such as a hospital via a power cable to a voltage suitable for use within the device, or it may be equipped with a power storage device such as a battery.

[0044] The input / output unit 44, like the input / output unit 14 of the RO device 10, has an input unit consisting of a touch panel type input interface and an output unit consisting of a general screen type output interface. In other words, the input / output unit 44 in this embodiment is a touch panel type liquid crystal display (display screen) equipped with an input / output interface.

[0045] The communication unit 45, like the communication unit 15 of the RO device 10, is composed of various electronic components and has a communication circuit. In particular, in this embodiment, the communication unit 45 has an Ethernet PHY, which will be described later. The communication unit 45 transmits and receives information with other devices installed separately from the dialysis fluid supply device 40 via a LAN cable 72 connected to the communication circuit.

[0046] The preparation and adjustment processing unit 46 has equipment for preparing dialysate by mixing the supplied RO water, stock solution A, and stock solution B, while adjusting its concentration to a predetermined value. For example, the preparation and adjustment processing unit 46 may include a power supply for the equipment, a stirrer for mixing the RO water, stock solution A, and stock solution B, a pump for introducing each liquid or leading the prepared dialysate towards the dialyzer 50, a solenoid valve installed in the internal piping, equipment for disinfection and sterilization, various sensors, and other actuators. The configuration of the preparation and adjustment processing unit 46 will vary depending on the type of dialysate supply device 40, and parts may be added or removed as appropriate.

[0047] (dialysis machine) As shown in Figure 1, the dialysis machine 50 is an example of blood purification therapy, and various consumables necessary for performing dialysis therapy are connected to it. In other words, in this embodiment, a blood purification unit is formed with various consumables connected to the dialysis machine 50, and dialysis therapy is performed on patient H. Here, consumables include a dialyzer 81 and a blood circuit 82, which are types of blood purifiers as shown in Figure 1. The dialysis machine 50 also supplies dialysate supplied from the piping L5 to the dialyzer 81 and performs processing for dialysis therapy on patient H.

[0048] As can be seen from Figures 1, 2, and 7, the dialysis machine 50 has a control unit 51, a memory unit 52, a power supply unit 53, an input / output unit 54, and a communication unit 55. The dialysis machine 50 also has an internal piping unit 56 for circulating dialysate between itself and the dialyzer 81, and an extracorporeal circulation unit 57 for circulating the patient H's blood outside the body. These units are electrically connected to each other via control lines and data lines. This allows the dialysis machine 50 to send and receive various signals, data, and information, as well as to perform various controls by the control unit 51. With this configuration, the dialysis machine 50 is able to take the patient H's blood outside the body (blood removal), remove unwanted or toxic substances or water from the blood in the dialyzer 81 (blood purification), and return the purified blood to the patient H (blood return).

[0049] The control unit 51, like the control unit 11 of the RO device 10, is composed of a CPU or GPU and controls various parts of the dialysis machine 50 based on various programs stored in the memory unit 42. Specifically, the control unit 51 reads from the memory unit 52 and executes programs for performing processes such as displaying various information in the input / output unit 54, sending and receiving various information via the communication unit 55, circulating dialysate in the internal piping unit 56, and withdrawing and returning patient H's blood in the extracorporeal circulation unit 57, or programs for executing the OS.

[0050] The storage unit 52, like the storage unit 52 of the RO device 10, is composed of ROM, RAM, non-volatile memory, HDD, etc. For example, the ROM stores instruction commands as programs for executing various processes for dialysis treatment. The RAM is used to write and read data while the program stored in the ROM is being processed by the control unit 51. The non-volatile memory is a storage device in which data is written and read as a result of the execution of the program, and the data written there is saved even after the execution of the program has finished.

[0051] The power supply unit 53, like the power supply unit 13 of the RO system 10, is a device that supplies the power necessary to start each part. For example, the power supply unit 53 may be equipped with a circuit that boosts or lowers the voltage of the power supplied from an outlet in a facility such as a hospital via a power cable to a voltage suitable for use within the device, or it may be equipped with a power storage device such as a battery.

[0052] The input / output unit 54, like the input / output unit 14 of the RO device 10, has an input unit consisting of a touch panel type input interface and an output unit consisting of a general screen type output interface. In other words, the input / output unit 54 in this embodiment is a touch panel type liquid crystal display (display screen) equipped with an input / output interface.

[0053] The communication unit 55, like the communication unit 15 of the RO device 10, is composed of various electronic components and has a communication circuit. In particular, in this embodiment, the communication unit 55 has an Ethernet PHY, which will be described later. The communication unit 55 transmits and receives information between the dialysis machine 50 and other devices and other dialysis machines 50, 60 installed at a distance from the dialysis machine 50 via a LAN cable 72 connected to the communication circuit.

[0054] The internal piping section 56 is located inside the main body of the dialysis machine 50 and is connected via piping to the dialysate inlet and dialysate outlet located on the side of the dialyzer 81. For example, the internal piping section 56 includes various components such as pipes, pumps, valves, sensors, and filters. More specifically, the internal piping section 56 may include a double pump, a water removal pump, a degassing pump, a pressure pump, a pressure reducing valve, a solenoid valve, a temperature sensor, a pressure sensor, and a chemical filter.

[0055] The internal piping section 56 is assembled by appropriately selecting the above-mentioned components according to the piping configuration and type, and is structured to enable the circulation and cleaning of dialysate. Furthermore, the internal piping section 56 is structured to enable the introduction and discharge of dialysate to and from the dialyzer 81. Note that these specific configurations are not features of the blood purification device (dialysis device) of this disclosure, so their explanation is omitted.

[0056] The extracorporeal circulation unit 57 is provided on the surface of the main body of the dialysis machine 50 and has equipment for introducing the patient's blood into the dialyzer 81 or taking it out of the dialyzer 81 via a consumable blood circuit 82. For example, the extracorporeal circulation unit 57 has a pump connected to the blood circuit 82, various sensors, etc. For example, a peristaltic pump is assumed as the pump, but other pumps such as a diaphragm pump may also be used. The configuration of the extracorporeal circulation unit 57 will vary depending on the type of dialysis machine 50, and parts may be added or removed as appropriate.

[0057] The dialysis machine 60 is also an example of blood purification therapy, and various consumables necessary for performing dialysis treatment are connected to it. In other words, in this embodiment, a blood purification unit is formed with various consumables connected to the dialysis machine 60, and dialysis treatment is performed on patient H. Here, the consumables refer to items such as the dialyzer 81 and blood circuit 82, which are types of blood purifiers as shown in Figure 1, similar to those connected to the dialysis machine 50.

[0058] Furthermore, the dialysis machine 60 mixes RO water supplied from pipe L2, stock solution A supplied from pipe L3, and stock solution B supplied from pipe L4 to produce a dialysate of a predetermined concentration. In addition, the dialysis machine 60 supplies the prepared dialysate to the dialyzer 81 and processes it for dialysis treatment of patient H.

[0059] As can be seen from Figures 1, 2, and 8, the dialysis machine 60 includes a control unit 61, a storage unit 62, a power supply unit 63, an input / output unit 64, and a communication unit 65. The dialysis machine 60 also includes an internal piping unit 66 for circulating dialysate between itself and the dialyzer 81, and an extracorporeal circulation unit 67 for circulating the patient H's blood outside the body. Furthermore, the dialysis machine 60 includes a preparation and adjustment processing unit 68 for preparing dialysate and adjusting its concentration. These units are electrically connected to each other via control lines and data lines. This enables the dialysis machine 60 to transmit and receive various signals, data, and information, as well as to perform various controls by the control unit 61.

[0060] With this configuration, the dialysis machine 60, like the dialysis machine 50, is capable of taking blood from patient H outside the body (blood removal), removing unnecessary or toxic substances or water from the blood in the dialyzer 81 (blood purification), and returning the purified blood to patient H (blood return). In addition, the dialysis machine 60 is capable of producing the dialysate necessary for dialysis treatment in-house and adjusting its concentration.

[0061] Compared to the dialysis machine 50, the dialysis machine 60 has an additional component for preparing dialysate. Although there are differences in the details, the configuration of the dialysis machine 50 is essentially the same as the dialysis machine 50 with the addition of the dialysate preparation and adjustment processing unit 46 of the dialysate supply device 40. Therefore, a detailed explanation of each component of the dialysis machine 60 will be omitted.

[0062] (Configuration for wake-on-run) Next, with reference to Figures 9 to 13, the configuration for WOL in the blood purification system 1 according to this embodiment and the processing of WOL using this configuration will be described. Here, Figures 9, 10, and 12 are block diagrams illustrating the schematic electrical configuration for WOL in the blood purification system 1 according to this embodiment. In particular, Figure 9 shows the configuration, connection relationships, and flow of information (including signals or power) necessary for processing WOL. Figure 10 shows the flow of information related to the start of driving due to WOL processing. Furthermore, Figure 12 shows the flow of information related to the stop of driving due to WOL processing. On the other hand, Figures 11 and 13 are sequence diagrams showing the flow of each WOL process in the blood purification system 1 according to this embodiment. In particular, Figure 11 shows the flow and processing of information related to the start of driving due to WOL processing, and Figure 13 shows the flow and processing of information related to the stop of driving due to WOL processing.

[0063] First, Figure 9 shows a configuration in the blood purification system 1 for controlling the medical device 90 on and off using an external control device 100, which is also a medical device. That is, the medical device 90 and the external control device 100 in Figure 9 correspond to one of the above-mentioned RO device 10, A agent dissolving device 20, B agent dissolving device 30, dialysate supply device 40, dialysis machine 50, or dialysis machine 60 (hereinafter also referred to as the medical device group).

[0064] As shown in Figure 9, the medical device 90 and the external control device 100 are connected via a LAN cable 72 and a hub 71, which are communication cables, to enable communication. The medical device 90 has a control unit 91, a power supply unit 93, and a communication unit 95. Here, the control unit 91 corresponds to one of the control units of the medical device group, the power supply unit 93 corresponds to one of the power supply units of the medical device group, and the communication unit 95 corresponds to one of the power supply units of the medical device group. For example, if the medical device 90 is a dialysis machine 50, then the control unit 91 is the same as the control unit 51, the power supply unit 93 is the same as the power supply unit 53, and the communication unit 95 is the same as the communication unit 55. Therefore, although not shown in Figure 9, in addition to the above configuration, the medical device 90 also has a storage unit, an input / output unit, and various processing units related to blood purification therapy.

[0065] Furthermore, as shown in Figure 9, the control unit 91 includes an Ethernet MAC 91a, which is a MAC (Media Access Control) for Ethernet. The communication unit 95 includes an Ethernet PHY 95a to which a LAN cable 72 is connected, enabling the transmission and reception of information via Ethernet. The Ethernet MAC 91a and Ethernet PHY 95a are connected via a dedicated communication line called an MII (Media-independent interface). Therefore, it is possible to transmit and receive information, data, and signals between the Ethernet MAC 91a and the Ethernet PHY 95a.

[0066] Furthermore, as shown in Figure 9, the power supply unit 93 has a first power supply circuit 93a and a second power supply circuit 93b. The first power supply circuit 93a constantly supplies power to the communication unit 95, which includes the Ethernet PHY 95a. On the other hand, the second power supply circuit 93b selectively supplies power to the control unit 91, which includes the Ethernet MAC 91a. That is, the second power supply circuit 93b switches between supplying power to the control unit 91 and stopping the power supply, thereby controlling the on / off state of the control unit 91 and the Ethernet MAC 91a. Here, the second power supply circuit 93b switches between supplying power to the control unit 91 and stopping the power supply in accordance with the power control output supplied from the Ethernet PHY 95a.

[0067] The power supply unit 93 does not consist of two first power supply circuits 93a and second power supply circuits 93b; instead, the first power supply circuit 93a may directly supply and stop power to the Ethernet MAC 91a. In such a case, for example, the first power supply circuit 93a may include a switching circuit, providing continuous power to the Ethernet PHY 95a and intermittent power supply to the Ethernet MAC 91a using the switching circuit.

[0068] Next, referring to Figures 10 and 11, the process of remotely starting the operation of the medical device 90 using the WOL function will be explained. First, in the initial state, the power supply from the second power supply circuit 93b to the control unit 91 of the medical device 90 is stopped, and the control unit 91 and the Ethernet MAC 91a are stopped (stopped state: S100). Since the control unit 91 is stopped, the medical device 90 itself is also stopped, and no processing related to blood purification treatment is being performed in the medical device 90.

[0069] Next, the administrator of the blood purification system 1 uses the external control device 100 to remotely operate the medical device 90. Specifically, the administrator makes a predetermined input from the input / output unit of the external control device 100, and the control unit of the external control device 100 generates a WOL startup command (startup command generation process: S101). The control unit and input / output unit of the external control device 100 will correspond to the control unit and input / output unit of one of the medical devices in the group of medical devices described above.

[0070] Subsequently, the generated WOL startup command is transmitted to the medical device 90 via the LAN cable 72 and the hub 71 (startup command transmission process: T101). This transmission is performed via the communication unit of the external control device 100 by the control unit of the external control device 100, which reads and executes a predetermined program.

[0071] Next, when the Ethernet PHY 95a of the communication unit 95 of the medical device 90 receives a WOL start command, the Ethernet PHY 95a generates a power supply instruction, which is a control signal (power supply instruction generation process: S102). Subsequently, the Ethernet PHY 95a transmits the power supply instruction to the second power supply circuit 93b. Here, the communication unit 95, including the Ethernet PHY 95a, is constantly supplied with power from the first power supply circuit 93a and is configured to wait for the WOL start command, as described later, so the Ethernet PHY 95a generates and transmits the power supply instruction.

[0072] Next, when the second power supply circuit 93b receives the power supply instruction, the second power supply circuit 93b starts supplying power to the control unit 91, which includes the Ethernet MAC 91a (power supply process: S103). Once power is supplied to the control unit 91, the control unit 91 and the Ethernet MAC 91a start up (control unit startup process: S104). With the control unit 91 started up, the medical device 90 itself also starts up and becomes capable of performing various processes related to blood purification therapy (medical device drive process: S105). Specifically, in the case of the RO device 10, processing by the purification unit 16 is possible; in the case of the A agent dissolving device 20, processing by the dissolving unit 26 is possible; in the case of the B agent dissolving device 30, processing by the dissolving unit 36 ​​is possible; in the case of the dialysate supply device 40, processing by the preparation and adjustment processing unit 46 is possible; in the case of the dialysis machine 50, processing by the internal piping unit 56 and the extracorporeal circulation unit 57 is possible; and in the case of the dialysis machine 60, processing by the internal piping unit 66, the extracorporeal circulation unit 67, and the preparation and adjustment processing unit 68 is possible.

[0073] As described above, in this embodiment, the power supply by the second power supply circuit 53b is initiated by the processing of the always-on Ethernet PHY 95a upon receipt of the WOL start command. Therefore, the control unit 91 of the medical device 90 can be started (powered on) remotely from the external control device 100 without putting the control unit 91 into a dormant state.

[0074] Next, referring to Figures 12 and 13, the process of remotely stopping the operation of the medical device 90 using the WOL function will be explained. First, in the initial state, power is continuously supplied from the second power supply circuit 93b to the control unit 91 in the medical device 90, and the control unit 91 and the Ethernet MAC 91a are running (operating state: S200). That is, an example of the medical device 90, such as the RO device 10, A agent dissolving device 20, B agent dissolving device 30, dialysate supply device 40, dialysis machine 50, or dialysis machine 60, is running, and various processes related to blood purification therapy are being carried out. Subsequently, when the blood purification therapy is completed, the various processes related to blood purification therapy are completed (medical processing completion state: S201).

[0075] Next, the administrator of the blood purification system 1 uses the external control device 100 to remotely shut down the medical device 90. Specifically, the administrator makes a predetermined input from the input / output unit of the external control device 100, and the control unit of the external control device 100 generates a power shutdown command (shutdown command generation process: S202).

[0076] Subsequently, the generated power-off command is transmitted to the medical device 90 via the LAN cable 72 and the hub 71 (power-off command transmission process: T201). This transmission is performed via the communication unit of the external control device 100 by the control unit of the external control device 100, which reads and executes a predetermined program.

[0077] Next, when the Ethernet PHY 95a of the communication unit 95 of the medical device 90 receives a power-off command, the Ethernet PHY 95a transmits the power-off command to the Ethernet MAC 91a. When the Ethernet MAC 91a receives the power-off command, it sets the Ethernet PHY 91a to wait for a WOL start command (waiting setting process: S203). In other words, the Ethernet MAC 91a conditionally specifies the next action for the Ethernet PHY 95a (receiving a WOL start command) so that the Ethernet PHY 95a will perform the process to start the Ethernet MAC 91a when it receives a WOL start command.

[0078] Next, the Ethernet MAC 91a generates a power-off instruction, which is a control signal corresponding to the power-off command (power-off instruction generation process: S204). After that, the Ethernet MAC 91a transmits the power-off instruction to the second power supply circuit 93b.

[0079] Next, when the second power supply circuit 93b receives the power stop instruction, the second power supply circuit 93b stops supplying power to the control unit 91, which includes the Ethernet MAC 91a (power supply stop processing: S205). After that, the control unit 91 stops driving (control unit stop processing: S206).

[0080] As described above, in this embodiment, the Ethernet MAC 91a receives a power stop command via the Ethernet PHY 95a, which is always running, and processes the corresponding command, thereby setting the Ethernet PHY 95a to a WOL start command standby state, and the power supply by the second power supply circuit 53b is stopped. Therefore, the operation of the control unit 91 of the medical device 90 can be stopped (powered off) remotely from the external control device 100 without putting the control unit 91 of the medical device 90 into a dormant state.

[0081] (Effects of the first embodiment) In this embodiment, the communication unit 95, including the Ethernet PHY 95a, is constantly powered, while the control unit 91, including the Ethernet MAC 91a, is powered only when it is being driven. Power to the control unit 91 is triggered by a WOL start command received by the Ethernet PHY 95a, which is always running. As a result, the control unit 91 of the medical device 90 can be started and stopped remotely from the external control device 100 without putting the control unit 91 of the medical device 90 into a sleep state. In other words, even if the CPU or OS constituting the control unit 91 of the medical device 90 does not support sleep mode, the medical device 90 can still implement the WOL function.

[0082] Furthermore, even if the CPU or OS does not support hibernation mode, the WOL function is realized, allowing for the continued use of existing equipment. This reduces the cost of the medical device 90. In addition, since existing equipment can be used continuously, no additional management, work, or processing is required for administrators, and the convenience for administrators is not diminished. Moreover, since there is no need to change the function of the control unit 91 itself, a high level of safety in the medical device 90 can be maintained. In particular, the blood purification system 1 and each of its constituent devices require high levels of safety and convenience due to the special nature of blood purification therapy, but in this embodiment, both safety and convenience can be achieved with the above-described configuration.

[0083] (Modification of the first embodiment) In the embodiment described above, the blood purification system 1 had an RO device 10, an A agent dissolving device 20, a B agent dissolving device 30, a dialysate supply device 40, a dialysis machine 50, a dialysis machine 60, and a communication line unit 70, but it is not necessary to have all of these. For example, the blood purification system 1 may consist of an RO device 10, an A agent dissolving device 20, a B agent dissolving device 30, a dialysate supply device 40, a dialysis machine 50, and a communication line unit 70, or it may consist of an RO device 10, an A agent dissolving device 20, a B agent dissolving device 30, a dialysis machine 60, and a communication line unit 70. In other words, the blood purification system 1 may be of various types as long as the devices necessary for performing dialysis treatment on patient H are connected by the communication line unit 70. In particular, the blood purification system of this disclosure does not require that the blood purification unit (internal piping unit and extracorporeal circulation unit), dialysate supply unit (preparation and adjustment processing unit), dissolution unit, dialysate water purification unit, and communication line unit be provided as separate devices, but rather a system in which multiple such units are included in a single device.

[0084] Furthermore, although the above-described embodiment used the blood purification system 1 as an example of a medical system, the medical system is not limited to this. In other words, this disclosure can also be applied to systems for medical procedures other than blood purification. For this reason, the medical device 90 and the external control device 100 are not limited to devices for blood purification that constitute the blood purification system 1, but may also be devices for performing other medical procedures. Moreover, the external control device 100 does not need to be a medical device, but may be a portable terminal for remote operation, etc.

[0085] <Second Embodiment> In the first embodiment, the Ethernet MAC91a and the Ethernet PHY95a were directly connected by a communication line, but the logic circuit may be placed on the same communication line. This case will be described as the second embodiment with reference to Figure 14. Here, Figure 14 is a block diagram showing the schematic electrical configuration for WOL in the blood purification system 1 according to this embodiment. Note that the parts that differ from the first embodiment will be described in basic terms, and the same contents will be omitted from the description, and the same reference numerals will be used in the drawings in general.

[0086] In this embodiment, as shown in Figure 14, a logic circuit 98 is arranged on the communication line connecting the Ethernet MAC 91a and the Ethernet PHY 95a. Therefore, when the Ethernet MAC 91a transmits predetermined information to the outside, the transmitted predetermined information reaches the Ethernet PHY 95a via the logic circuit 98, and is then transmitted from the Ethernet PHY 95a to the external control device 100 or other medical device, etc., via the hub 71 and LAN cable 72. Similarly, when the control unit 91 receives predetermined information from the outside, the Ethernet PHY 95a receives the predetermined information from the external control device 100 or other medical device, etc., via the hub 71 and LAN cable 72, and the predetermined information reaches the Ethernet MAC 91a via the logic circuit 98.

[0087] The logic circuit 98 may be powered by either the first power supply circuit 93a or the second power supply circuit 93b. The logic circuit 98 is configured to transmit and receive information only when the control unit 91 is running. An additional power supply circuit may be provided in the power supply unit 93, and this power supply circuit may supply power to the logic circuit 98.

[0088] (Effects of the second embodiment) As described above, this embodiment also provides the same effects as the first embodiment described above. Furthermore, in this embodiment, since the logic circuit 98 is arranged on the communication line connecting the Ethernet MAC 91a and the Ethernet PHY 95a, even when the control unit 91 is stopped (power off), it is possible to prevent abnormal current from flowing from the driven Ethernet PHY 95a to the Ethernet MAC 91a. This prevents damage and failure of the control unit 91 and the communication unit 95.

[0089] <Embodiments of this disclosure> A first embodiment of the present disclosure is a medical device that is communicably connected to an external control device by Ethernet, comprising: a communication unit including an Ethernet PHY connected to the external control device via a communication cable; a control unit including an Ethernet MAC connected to the Ethernet PHY by a communication line; and a power supply unit that constantly supplies power to the communication unit and switches between supplying and stopping power to the control unit, wherein the Ethernet MAC sets the Ethernet PHY to a wake-on-run startup command standby state when the power supply by the power supply unit is stopped, and the Ethernet PHY, while in the wake-on-run startup command standby state, transmits a power supply instruction to the power supply unit to start supplying power to the control unit when it receives a wake-on-run startup command from the external control device.

[0090] Thus, in the first embodiment, the communication unit, including the Ethernet PHY, is constantly powered, while the control unit, including the Ethernet MAC, is powered only when it is being driven. Furthermore, power to the control unit is triggered by a WOL start command received by the always-on Ethernet PHY. As a result, the control unit can be remotely started from an external control device without putting the medical device's control unit into a sleep state. In other words, even if the CPU or OS constituting the medical device's control unit does not support sleep mode, the medical device can still implement the WOL function.

[0091] A second embodiment of the present disclosure is that, in the first embodiment, when the Ethernet MAC receives a power stop command from the external control device while the control unit is running, it transmits a power stop instruction to the power supply unit to stop the power supply to the control unit. This makes it possible to remotely stop the operation of the control unit from the external control device without putting the control unit of the medical device into a sleep state.

[0092] A third embodiment of the present disclosure is that, in the first or second embodiment, the power supply unit comprises a first power supply circuit that continuously supplies power to the communication unit, and a second power supply circuit that switches between supplying power to and stopping power supply to the control unit. This makes it possible to separate the power supply to the control unit and the communication unit, and enables more precise independent operation of the control unit and the communication unit.

[0093] A fourth embodiment of the present disclosure is that, in any of the first to third embodiments, the Ethernet PHY and the Ethernet MAC are communicateable via a logic circuit provided on the communication line. This prevents abnormal current from flowing from the operating Ethernet PHY to the Ethernet MAC even when the control unit is stopped.

[0094] A fifth embodiment of this disclosure is, in the fourth embodiment, that the power supply unit supplies power to the logic circuit. This makes it possible to share power supplies between the control unit, the communication unit, and the logic circuit, thereby reducing the cost of the medical device.

[0095] A sixth embodiment of this disclosure is that, in any of the first to fifth embodiments, the external control device is a different type of medical device than the medical device. This makes it possible to realize WOL functionality by utilizing existing medical devices.

[0096] A seventh embodiment of this disclosure is, in the sixth embodiment, comprising: a plurality of blood purification units for purifying a patient's blood; a preparation and adjustment unit for preparing dialysate to be supplied to the blood purification units; a dissolution unit for supplying dialysate concentrate to the preparation and adjustment unit; or a purification unit for purifying dialysate and supplying it to at least one of the preparation and adjustment unit and the dissolution unit. This allows for the continued use of existing equipment, without compromising convenience for administrators, and furthermore, it maintains a high level of safety in the medical device. Therefore, even when high levels of safety and convenience are required due to the unique nature of blood purification therapy, these requirements can be fully met.

[0097] An eighth embodiment of the present disclosure is a medical system in which a plurality of medical devices are connected to each other in a communicative manner by Ethernet, each of the plurality of medical devices having a communication unit including an Ethernet PHY connected to other medical devices via a communication cable, a control unit including an Ethernet MAC connected to the Ethernet PHY by a communication line, and a power supply unit that constantly supplies power to the communication unit and switches the power supply to and from the control unit, wherein the Ethernet MAC sets the Ethernet PHY to a wake-on-run startup command standby state when the power supply by the power supply unit is stopped, and the Ethernet PHY, while in the wake-on-run startup command standby state, transmits a power supply instruction to the power supply unit to start supplying power to the control unit when it receives a wake-on-run startup command from the other medical devices.

[0098] Thus, in the eighth embodiment, the communication unit including the Ethernet PHY is constantly powered, while the control unit including the Ethernet MAC is powered only when it is being driven. Furthermore, power to the control unit is triggered by a WOL start command received by the always-on Ethernet PHY. As a result, it becomes possible to remotely start the control unit from an external control device without putting the control unit of the medical device constituting the medical system into a sleep state. In other words, even if there is a medical device in the medical system whose CPU or OS does not support sleep mode, the medical system can still implement WOL functionality. [Explanation of Symbols]

[0099] 1. Blood purification system (medical system) 10 RO system (dialysis water purification unit, medical equipment, external control device) 20. Agent A dissolving device (dissolving unit, medical device, external control device) 30. Agent B dissolution device (dissolution unit, medical device, external control device) 40. Dialysis fluid supply system (dialysis fluid supply unit, medical device, external control device) 50. Dialysis machine (blood purification unit, medical device, external control device) 60. Dialysis machine (blood purification unit, medical device, external control device) 70 Communication Line Section 71 Hub 72 LAN cables (communication cables) 90 Medical devices 91 Control Unit 91a Ethernet MAC 93 Power supply section 93a 1st power supply circuit 93b 2nd power supply circuit 95 Communications Department 95a Ethernet PHY 98 Logic Circuits 100 External control device H patient

Claims

1. A medical device that is connected to an external control device via Ethernet in a communicative manner, A communication unit including an Ethernet PHY connected to the external control device via a communication cable, A control unit including an Ethernet MAC connected to the Ethernet PHY by a communication line, The system includes a power supply unit that constantly supplies power to the communication unit and switches between supplying and stopping power to the control unit, When the power supply from the power supply unit stops, the Ethernet MAC sets the Ethernet PHY to a wake-on-run startup command waiting state. The Ethernet PHY, in the wake-on-run startup command waiting state, transmits a power supply instruction to the power supply unit to start supplying power to the control unit when it receives a wake-on-run startup command from the external control unit.

2. The medical device according to claim 1, wherein when the Ethernet MAC receives a power stop command from the external control device while the control unit is running, it transmits a power stop instruction to the power supply unit to stop the power supply to the control unit.

3. The medical device according to claim 1, wherein the power supply unit comprises a first power supply circuit that continuously supplies power to the communication unit, and a second power supply circuit that switches between supplying power to and stopping power supply to the control unit.

4. The medical device according to claim 1, wherein the Ethernet PHY and the Ethernet MAC are communicated together via a logic circuit provided in the communication line.

5. The medical device according to claim 4, wherein the power supply unit supplies power to the logic circuit.

6. The medical device according to claim 1, wherein the external control device is another medical device of a different type than the medical device.

7. The medical device according to claim 6, comprising: a plurality of blood purification units for purifying a patient's blood; a preparation and adjustment unit for preparing dialysate to be supplied to the blood purification units; a dissolution unit for supplying dialysate stock to the preparation and adjustment unit; or a purification unit for purifying dialysate and supplying it to at least one of the preparation and adjustment unit and the dissolution unit.

8. A medical system in which multiple medical devices are connected to each other via Ethernet, enabling them to communicate with one another. Each of the aforementioned medical devices is A communication unit including an Ethernet PHY that connects to other medical devices via a communication cable, A control unit including an Ethernet MAC connected to the Ethernet PHY by a communication line, The system includes a power supply unit that constantly supplies power to the communication unit and switches between supplying and stopping power to the control unit, When the power supply from the power supply unit stops, the Ethernet MAC sets the Ethernet PHY to a wake-on-run startup command waiting state. The aforementioned Ethernet PHY is a medical system that, when it receives a wake-on-run startup command from another medical device while in the wake-on-run startup command waiting state, transmits a power supply instruction to the power supply unit to start supplying power to the control unit.

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