Mobile radiographic imaging system and restriction method therefor

Abstract

In order to provide a mobile radiation imaging system capable of reducing the burden on a subject and a medical practitioner, a mobile radiation imaging system according to one embodiment of the present disclosure is provided with: a radiation generation device which can be set to a plurality of imaging modes and radiates radiation, and which generates radiation in the plurality of imaging modes; the plurality of shooting modes comprise a first mode for performing perspective shooting and a second mode as a general shooting mode for acquiring a series of multi-frame images by irradiating a shot object with radiation rays; and a control device that restricts the use of the first mode outside the management area.

Description

Technical Field

[0001] The present disclosure relates to a mobile radiation imaging system and a limiting method of the mobile radiation imaging system. Background Art

[0002] There is proposed a fluoroscopy device that continuously radiates pulsed radiation to perform fluoroscopy of a subject (for example, Patent Document 1). Fluoroscopy involves a larger radiation dose than general radiography.

[0003] Patent Document 1: Japanese Patent Application Publication No. 2021-53168

[0004] Patent Document 2: Japanese Patent Application Publication No. 2022-11259

[0005] In buildings such as hospitals where fluoroscopy devices are used, there are rooms that serve as management areas (referred to as "management areas" for short). Under Japanese law, fluoroscopy devices must be used in management areas that are more stringent than general photography devices and cannot be used in general wards. Therefore, when performing fluoroscopy photography, patients need to move to a photography room where fluoroscopy devices can be used. In the case of critically ill patients, infectious patients, and other patients who are difficult to move to the photography room, the patient's physical burden is greater. In addition, when moving critically ill patients and infectious patients, it is necessary to assist in the movement and to construct an environment for infection countermeasures, which will increase the physical and time burdens of medical practitioners.

[0006] In this regard, if the hospital has a mobile dynamic shooting device that can shoot dynamic images even in general wards, the above problem can be solved. However, it is a heavy financial burden for the hospital to have a fluoroscopy device and a mobile dynamic shooting device separately. It is particularly difficult for small hospitals and clinics to have both a fluoroscopy device and a mobile dynamic shooting device. Summary of the invention

[0007] An object of the present disclosure is to provide a mobile radiographic imaging system capable of alleviating the burden on subjects and medical practitioners.

[0008] The inventors of the present invention have considered whether the above-mentioned problems can be solved by providing a mobile radiation imaging system having a plurality of imaging modes, including an imaging mode for performing fluoroscopic imaging and a dynamic imaging mode as a general imaging mode for acquiring a series of multi-frame images by irradiating a subject with radiation. However, the places where fluoroscopic imaging and general imaging can be used are different, so it is necessary to perform imaging in an appropriate manner according to the place. It has been found that there is a new problem that, if fluoroscopic imaging is mistakenly performed in a place where it cannot be used, there is a concern that patients and medical practitioners are exposed to unnecessary radiation.

[0009] A mobile radiation imaging system in one embodiment of the present disclosure comprises: a radiation generating device that can be set to a plurality of imaging modes and radiates radiation, wherein the plurality of imaging modes include a first mode for performing fluoroscopic imaging and a second mode as a general imaging mode for acquiring a series of multi-frame images by irradiating a subject with radiation; and a control device that restricts the use of the first mode outside a management area.

[0010] In one embodiment of the present disclosure, a method for limiting a mobile radiation imaging system limits the use of the first mode outside a management area in a mobile radiation imaging system that can be set to multiple modes including a first mode for performing fluoroscopic imaging and a second mode as a general imaging mode for acquiring a series of multi-frame images by irradiating a subject with radiation.

[0011] In addition, these general or specific methods may also be implemented through systems, devices, methods, integrated circuits, computer programs or recording media, or through any combination of systems, devices, methods, integrated circuits, computer programs and recording media.

[0012] According to the present disclosure, it is possible to provide a mobile radiographic system that can reduce the burden on subjects and medical practitioners. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a figure which shows an example of the medical cart in use.

[0014] Figure 2 The diagram shows an example of a medical cart when it is moving or not in use.

[0015] Figure 3 This is a diagram showing the functional blocks of the main body.

[0016] Figure 4 This is a diagram showing an example of a flowchart of a process performed by a processing unit.

[0017] Figure 5 This is a diagram showing an example of a window displayed on the screen when notifying that the current mode is the see-through mode.

[0018] Figure 6 This is a diagram showing an example of a window displayed on the screen when notifying that the setting to the dynamic shooting mode has been completed.

[0019] Figure 7 This is a diagram showing an example of a window displayed on the screen when notifying that the setting to the dynamic shooting mode is not completed.

[0020] Figure 8FIG. 1 is a diagram showing an example of a window displayed on the screen when the see-through mode can be selected.

[0021] Fig. 9 This is a diagram showing an example of a flowchart of processing performed by a setting unit.

[0022] Fig.10 is a flowchart of the processing performed by the control circuit.

[0023] Explanation of the reference numerals: 100…medical cart; 110…radiation generating device; 111…generator; 112…collimator; 120…radiation detecting device; 121, 144…communication unit; 130…arm; 131…vertical arm; 132…horizontal arm; 140…main body; 141…input / output unit; 142…power supply unit; 143…handle; 145…wheel; 310…input unit; 320…output unit; 330…control circuit; 400, 500, 600, 700, 800…window; 410, 420, 710, 720, 810, 820…button. DETAILED DESCRIPTION

[0024] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the drawings as appropriate.

[0025] <1. Mobile radiography system>

[0026] First, a schematic configuration of a mobile radiographic system according to an embodiment of the present disclosure will be described. The mobile radiographic system includes at least a radiation generating device. The mobile radiographic system may be, for example, a medical cart 100. The medical cart 100 may also have an automatic driving function.

[0027] Figure 1 1 is a diagram showing an example of the medical cart 100 when in use.

[0028] Figure 2 FIG. 1 is a diagram showing an example of the medical cart 100 when it is being moved or not in use.

[0029] The medical cart 100 includes a radiation generator 110, a radiation detector 120, an arm 130, and a main body 140. The medical cart 100 can be set to at least a fluoroscopic mode as a first mode or a dynamic imaging mode as a second mode as an imaging mode of the radiation generator 110. When the imaging mode is set to the fluoroscopic mode, the medical cart 100 can also be used as a fluoroscopic device. When the imaging mode is set to the dynamic imaging mode, the medical cart 100 can also be used as a dynamic imaging device. The radiation generator 110 can also have three or more imaging modes.

[0030] The medical cart 100 can also communicate with a hospital information system (HIS), a radiology information system (RIS), an image analysis device, a picture archiving and communication system (PACS), other radiographic imaging devices, and the like (not shown).

[0031] [Radiation Generating Device]

[0032] The radiation generating device 110 is mounted on the medical cart 100, and includes a generator 111 and a collimator 112. The radiation generating device 110 may be a radiation generating unit.

[0033] The generator 111 includes a bulb. When a voltage is applied to the bulb and a current flows, radiation is emitted from the bulb. Alternatively, a pulse voltage may be applied to the bulb to emit pulse radiation, such as X-rays.

[0034] According to the shooting mode set for the medical cart 100, the maximum radiation dose radiated by the generator 111 is limited, that is, the allowable radiation dose is limited. In the dynamic shooting mode, the radiation dose radiated is limited according to the limitations of a general shooting device. In the perspective mode, since it is not subject to the limitations of a general shooting device, it is possible to radiate more radiation dose than in the dynamic shooting mode. In the perspective mode, the radiation dose may not be limited. In addition, the generator 111 radiates radiation based on the settings from the input unit. The shooting conditions are, for example, conditions related to the subject 150 such as the shooting part, shooting direction, physique, tube voltage, tube current, radiation time, current-time product (mAs value), frame rate, allowable number of frames, pulse width, pulse interval, pulse period, pulse duty cycle, and other conditions related to the radiation of radiation.

[0035] In the dynamic imaging mode, the radiation generating device 110 repeatedly radiates radiation within a specified time (duration) at a period of multiple times per unit time (for example, 15 times in 1 second) during the period of radiation instruction. Here, the pulse period and duration are preset by the input and output unit 141. The pulse interval, pulse width, and pulse duty cycle can also be preset by the input and output unit 141. In addition, in the dynamic imaging mode of the present embodiment, a structure that radiates radiation pulses is used as an example for explanation, but it can also be a structure that continuously radiates radiation. In the dynamic imaging mode, the radiation emission is limited according to the limitations of a general imaging device.

[0036] In the perspective mode, the radiation generating device 110 repeats radiation pulses at a period of multiple times per unit time (for example, 6 times, 10 times or 15 times in 1 second) during the period of radiation instruction. Here, the pulse period is preset by the input and output unit 141. In the perspective mode, the duration is not set. That is, in the perspective mode, there is no restriction on the radiation of radiation based on the duration. In addition, in the perspective mode, since it is not restricted as a general imaging device, it is possible to radiate more radiation than in the dynamic imaging mode. In the perspective mode, the radiation dose may also not be limited. The pulse interval, pulse width, and pulse duty cycle are preset by the input and output unit 141. In addition, in the perspective mode in the present embodiment, the structure of radiating radiation pulses is used as an example for explanation, but it may also be a structure of continuously radiating radiation.

[0037] The collimator 112 narrows the irradiation area of ​​the irradiated radiation. The collimator 112 may also include a shielding unit such as a filter. The shielding unit may also narrow the irradiation area of ​​the irradiated radiation. The shielding unit may also weaken the intensity of the irradiated radiation.

[0038] [Radiation detection equipment]

[0039] The radiation detection device 120 includes a communication unit 121. Although not shown in the figure, the radiation detection device 120 includes a sensor substrate, a scanning circuit, a readout circuit, a control unit, etc. The radiation detection device 120 may be a radiation detection unit.

[0040] The radiation detection device 120 detects radiation emitted from the radiation generation device 110 through a subject 150. The subject 150 is, for example, a human being, an animal, or the like.

[0041] In the sensor substrate, pixels are arranged in a two-dimensional shape (matrix shape). Each pixel has a radiation detection element that generates an electric charge corresponding to the dose of radiation received by the subject and a switch element that accumulates and releases the electric charge. The scanning circuit sets the on or off of each switch element. The readout circuit reads the amount of charge released from each pixel as a signal value (intensity). The control unit controls the radiation detection device 120 as a whole. The control unit generates a radiation image based on the multiple signal values ​​read out by the readout circuit. The communication unit 121 sends the data of the radiation image generated by the readout circuit and various signals to the outside. In addition, the communication unit 121 receives various information and various signals. The communication unit 121 can also perform wireless communication or wired communication.

[0042] In each pixel of the radiation detection device 120 configured in this way, when the radiation detection element receives radiation in a state where the scanning circuit turns off the switch element, the radiation detection element generates a charge corresponding to the dose of radiation and accumulates the charge. When the scanning circuit sets the switch element to be turned on, the accumulated charge is released, and the readout circuit detects the amount of charge released from each pixel and generates a signal value representing the amount of charge. The control unit generates a radiation image based on the signal value generated for each pixel. Each generated radiation image is a still image in dynamic shooting. In the case of pulse radiation, a still image is generated corresponding to each pulse.

[0043] The communication unit 121 communicates with the communication unit 144 of the main unit 140, and sends the generated radiographic image to the communication unit 144 of the main unit 140. The communication unit 121 may send each still image generated to the main unit 140, or may collectively send a plurality of still images to the communication unit 144 of the main unit 140. The communication unit 121 may also communicate with components other than the main unit 140. The communication performed by the communication unit 121 may be either wireless communication or wired communication.

[0044] When the radiation generating device 110 performs pulse radiation, the timing of generating the plurality of still images constituting the dynamic image is synchronized with the timing of emitting radiation from the radiation generating device 110. On the other hand, when the radiation generating device 110 performs continuous radiation, the plurality of still images constituting the dynamic image are generated at any timing during the continuous radiation.

[0045] The radiation detection device 120 may be stored in the storage section of the main body 140 when the medical cart 100 is moving or not in use. When the radiation detection device 120 is stored in the storage section of the main body 140, the radiation detection device 120 may be connected to the main body 140 by wire, and the radiation detection device 120 may be charged from the main body 140 and communicate with the main body 140. When the radiation detection device 120 is stored in the storage section of the main body 140, the software or firmware of the radiation detection device 120 may be updated through communication with the main body 140. The radiation detection device 120 may be charged and communicated with the main body 140 wirelessly.

[0046] The radiation detection device 120 may be wirelessly connected when in use. The radiation detection device 120 may be driven by an internal battery. The radiation detection device 120 may be supplied with power from the main body 140 via wires or wirelessly.

[0047] The radiation detection device 120 may be connected to the main body 140 by wire when being moved or not in use, and may be connected to the main body 140 by wireless when in use.

[0048] [arm]

[0049] The arm 130 includes a vertical arm 131 and a horizontal arm 132. The vertical arm 131 supports the horizontal arm 132 so that it can rotate, that is, it can rotate relative to the Z axis. In addition, the vertical arm 131 can also support the horizontal arm 132 so that it can move. The horizontal arm 132 supports the radiation generating device 110 so that it can rotate, that is, it can rotate relative to the X axis and the Y axis. The radiation generating device 110 can be in any direction relative to the main body 140 through the vertical arm 131 and the horizontal arm 132. The position and direction of the arm can also be determined by the input from the input and output unit 141. The vertical arm 131 and the horizontal arm 132 can be rotated and moved by control from the main body 140, and can also be rotated and moved manually.

[0050] [Main body]

[0051] The main body 140 includes an input / output unit 141, a power supply unit 142, a communication unit 144, and wheels 145. The main body 140 may also include a handle 143. Although not shown in the figure, the main body 140 may also include a storage unit for storing the radiation detection device 120. The communication between the communication unit 144 of the main body 140 and the communication unit 121 of the radiation detection device 120 may be either wireless communication or wired communication.

[0052] Although not shown, the main body 140 may also have a fixing unit that locks the movement. By releasing the fixing unit, the main body 140 can be moved. For example, the fixing unit may be a unit that fixes the wheels 145, or a unit that fixes the medical cart 100 to a line that is fixed to a wall constituting the management area.

[0053] The input / output unit 141 can have a variable tilt angle relative to the main body 140. The input / output unit 141 may be detachable from the main body 140. When the input / output unit 141 is detachable from the main body 140, the input / output unit 141 and the main body 140 are connected wirelessly or by wire.

[0054] The input-output unit 141 is composed of an input unit and an output unit. The input unit and the output unit of the input-output unit 141 may be separated. The input-output unit 141 may be composed of a touch panel, a keyboard, a mouse, a microphone, a camera, a display, a speaker, a display light, etc. The input-output unit 141 may also be able to use input units such as voice-based input, gesture-based input, sight-based input, and brain wave-based input. The input-output unit 141 performs settings for the radiation generating device 110. In addition, the input-output unit 141 can input an operation to instruct the radiation generating device 110 to irradiate. The input-output unit 141 may also be composed of a radiation button of a switching button to form a radiation indication switch, and output an indication of radiation from the first time the switching button is pressed to the second time it is pressed, or output an indication of radiation while the radiation button is continuously pressed.

[0055] By operating the input / output unit 141, the generator 111 radiates radiation of a dose set by the input / output unit 141. The radiation is, for example, X-rays.

[0056] The input unit inputs various parameters for radiation generation by the radiation generator 110. The input unit may also input mode settings. When the medical cart 100 is set to the dynamic imaging mode by the control unit, the input unit may prohibit input of settings exceeding the radiation dose allowed in the dynamic imaging mode.

[0057] The output unit makes a notification related to the setting of the mode. The output unit may also make a notification urging the setting from the perspective mode to the dynamic shooting mode. The output unit may also make a notification related to the current mode of the medical vehicle 100. The output unit may also make a notification with the content of setting from the perspective mode to the dynamic shooting mode as the main purpose. The output unit may also make an alarm. In addition, the notification will be described in detail later.

[0058] The power supply unit 142 supplies power to the entire main body 140. The power supply unit 142 can also charge the radiation detection device 120. The power supply unit 142 can also be composed of a rechargeable battery. The power supply unit 142 can also be connected to a commercial power source for charging. It can also have a function of detecting whether charging has started. The power supply unit 142 can also be, for example, a nickel-metal hydride battery, a lithium-ion battery, a sodium battery, an all-solid battery, a flywheel, etc. The power supply unit 142 can also be composed of a fuel cell or an atomic energy battery. The fuel cell can also be recharged with fuel.

[0059] The power supply unit 142 may be connected to a commercial power source or the like for charging when not in use, and disconnected from the commercial power source and powered by a battery when in use. The power supply unit 142 may also be used to replenish the fuel of the fuel cell when not in use.

[0060] The handle 143 is held by a person when the medical cart 100 is moved. A sensor built into the handle 143 may detect that the handle 143 is held by a person. The sensor may notify the control circuit 330 when it detects that the handle 143 is held by a person.

[0061] The communication unit 144 communicates with the communication unit 121 of the radiation detection device 120. The communication unit 144 sends settings and instructions set by the input / output unit 141 to the communication unit 121 of the radiation detection device 120. In addition, the communication unit 144 outputs the radiation image received from the communication unit 121 of the radiation detection device 120 to the input / output unit 141.

[0062] The wheels 145 rotate when the medical cart 100 is moved. The wheels 145 may be rotated (driven) by the power supplied from the power supply unit 142, or may be rotated by a person holding the handle 143 and pushing the medical cart 100. The wheels 145 are fixed by a fixing unit (not shown).

[0063] [Functional modules]

[0064] Figure 3 1 is a diagram showing the functional blocks of the main body 140. The main body 140 includes an input unit 310, an output unit 320, a power supply unit 142, a handle 143, and a control circuit 330. The input unit 310 and the output unit 320 constitute an input-output unit 141. The input unit 310 and the output unit 320 may be integrated.

[0065] The input unit 310 is constituted by an input device such as a touch panel, a button, a microphone, etc. When receiving an instruction to start photographing, the input unit 310 may notify the control circuit 330 of the instruction to start photographing.

[0066] The output unit 320 is constituted by an output device such as a display or a speaker. The output unit 320 displays a notification related to the setting of the mode through the control circuit 330. Alternatively, the output unit 320 outputs a sound related to the setting of the mode.

[0067] The power supply unit 142 may notify the control circuit 330 when detecting the start of charging, the start of supply of electric power from the battery, connection to the commercial power source, or disconnection from the commercial power source.

[0068] The handle 143 may also notify the control circuit 330 when the built-in sensor detects that it is being held by a person.

[0069] The control circuit 330 controls the entirety of the medical cart 100. The control circuit 330 may also be instructed to start shooting from the input unit 310. The control circuit 330 may also be notified by the power supply unit 142 to start charging, start supplying power to the battery, connect to a commercial power source, or disconnect from a commercial power source. The control circuit 330 may also be notified by a sensor built into the handle 143 that the device is being held by a person. The control circuit 330 may also be notified that the fixing unit is released, that information is obtained from the RIS, that the communication method is set to a wireless method, that movement is detected, that a specified distance is moved, that a specified time has passed after the start of movement, or that the fixing unit is locked.

[0070] The control circuit 330 is composed of computers such as a CPU (Central Processing Unit), an ASIC (Application Specific Integrated Circuit), and an FPGA (Field Programmable Gate Array). The control circuit 330 can manage the mode of the medical cart 100 and set the mode. The control circuit 330 can at least select and switch the perspective mode used as a perspective device or the general shooting mode used as a general shooting device. The control circuit 330 can also select a shooting mode from three or more modes including other modes. Hereinafter, the mode used as a general shooting device will be referred to as the general shooting mode. The general shooting mode can also be a dynamic shooting mode used as a dynamic shooting device. The radiation dose allowed in the dynamic shooting mode is less than the radiation dose allowed in the perspective mode. The control circuit 330 can also rotate and move the vertical arm 131 and the horizontal arm 132.

[0071] When the current mode is the see-through mode, the control circuit 330 restricts use outside the management area.

[0072] The restriction of use outside the management area can be a so-called soft response, such as notifying or alerting users such as radiographers who use the medical cart 100 to urge them to restrict use, or a so-called hard response, such as preventing the medical cart 100 from outputting high doses of radiation (radiation doses exceeding the permissible radiation dose outside the management area) outside the management area, or preventing the medical cart 100 from leaving the management area. At least one of the soft response and the hard response may be performed, or both may be performed.

[0073] As a hard countermeasure, the control circuit 330 can perform at least one of control on the building and control on the medical vehicle 100 .

[0074] In addition, the restriction of use may be implemented by the building or by the medical vehicle 100. At least one of the building and the medical vehicle 100 may implement the restriction, or both of them may implement the restriction.

[0075] As control performed by the building, the door of the management area may be locked so that the medical cart 100 cannot leave the management area.

[0076] The control performed by the medical cart 100 may be such that the medical cart 100 cannot leave the management area when irradiation with a dose exceeding the allowable dose is possible, or the radiation generating device 110 may be controlled so that the radiation generating device 110 cannot irradiate with a dose exceeding the allowable dose outside the management area.

[0077] exist Fig.10 The flowchart of the processing performed by the control device is shown in FIG. For example, the control device may be the control circuit 330 of the medical cart 100. The control device may be located anywhere. The flowchart may be executed at a predetermined interval (for example, at a fixed time), when certain operations are performed on the medical cart 100, or at a predetermined interval and when certain operations are performed. Fig.10 The described flowchart can prevent radiation exceeding the permissible radiation dose from being irradiated outside the management area.

[0078] The control circuit 330 determines whether the imaging mode set for the medical cart 100 is the fluoroscopic mode (step S1001 ).

[0079] When the medical cart 100 is not in the fluoroscopic mode (e.g., in the dynamic imaging mode) (step S1001, No), the control circuit 330 returns to step S1001 to determine the mode of the medical cart 100. The control circuit 330 can also make the same determination for an imaging mode other than the fluoroscopic mode that can irradiate only within the management area.

[0080] When the medical cart 100 is in the fluoroscopic mode (step S1001 , Yes), the control circuit 330 determines whether the radiation generator 110 (medical cart 100 ) is present in the management area (step S1002 ).

[0081] When the medical cart 100 is in the management area (step S1002, yes), the control circuit 330 executes processing to prevent the medical cart 100 from leaving the management area (step S1003). The control circuit 330 may also execute processing to urge the user not to leave the management area. Details will be described later.

[0082] When the medical cart 100 is outside the management area (step S1002, No), the control circuit 330 limits the radiation dose radiated by the radiation generator 110 (medical cart 100) (step S1004). For example, the control circuit 330 may prevent the radiation generator 110 from radiating a radiation dose exceeding the permitted radiation dose. Alternatively, the control circuit 330 may urge the user to limit the radiation dose radiated by the radiation generator 110. In this case, the details will be described later.

[0083] The control circuit 330 may execute the process of step S1004 when it is determined that the medical vehicle 100 starts moving even when the medical vehicle 100 is in the management area. The control circuit 330 may execute the processes of both steps S1003 and S1004 when the medical vehicle 100 starts moving in the management area.

[0084] As control of the medical cart 100 , for example, at least one of the following (1) to (8) may be executed.

[0085] (1) When the fluoroscopic mode is set, the medical cart 100 is locked (immovable).

[0086] (2) Outside the management area, turn off (disconnect the power supply) the medical car 100.

[0087] (3) Outside the management area, the power supply to the medical cart 100 is stopped.

[0088] (4) Outside the management area, the power supply to the radiation generating device 110 is cut off (turned off).

[0089] (5) Outside the management area, the mode of the medical vehicle 100 is switched to the dynamic imaging mode.

[0090] (6) Outside the management area, the perspective mode of the medical cart 100 is disabled.

[0091] (7) The radiation dose radiated by the medical cart 100 is set to an output range limited to the output range in the area where the medical cart 100 is located. For example, radiation exceeding the upper limit (permissible radiation dose) is not radiated from the radiation generator 110 outside the management area. For example, the irradiation time of the fluoroscopy mode may be limited.

[0092] (8) Outside the management area, the fluoroscopic mode setting is disabled. For example, the fluoroscopic mode is grayed out on the setting screen of the medical cart 100 .

[0093] As a soft measure, the control circuit 330 may cause the output unit 320 to issue a notification related to the current mode (ie, the medical vehicle 100 outputs an alarm), or may cause the building to output an alarm. The alarm may be at least one of a notification related to the current mode and a notification outside the management area.

[0094] In the case of the dynamic imaging mode, the control circuit 330 may cause the output unit 320 to issue an alarm when the imaging condition preset by the input unit 310 is not recognized as an imaging condition of a general imaging device.

[0095] [Determination of the location of the medical vehicle]

[0096] Whether the medical cart 100 is inside or outside the management area can be determined by the medical cart 100 or by a control device (hereinafter referred to as a "building control device") that controls a building (e.g., a door of the management area). For example, the building control device can be installed in the building, or the control circuit 330 of the medical cart 100 can be the building control device.

[0097] Whether the medical vehicle 100 is inside or outside the management area may be determined by using a GNSS (Global Navigation Satellite System) such as a GPS (Global Positioning System) mounted on the medical vehicle 100 .

[0098] The communication unit 144 of the medical cart 100 may communicate with a communication device installed in a building where a management area is installed (hereinafter referred to as a "building communication device") to determine whether the medical cart 100 is inside or outside the management area.

[0099] For example, the medical vehicle 100 may be judged to be present in the management area by receiving a signal (e.g., a beacon signal) sent from a building communication device installed in the management area, or it may be judged to be present outside the management area by receiving a signal (e.g., a beacon signal) sent from a building communication device installed outside the management area. Different beacon signals may be sent from both sides of the management area and the outside of the management area, and it may be judged whether the medical vehicle 100 is present in the management area or outside the management area by which beacon signal the medical vehicle 100 receives.

[0100] For example, when a building communication device installed at various locations in a building receives a signal (for example, a beacon signal) sent from the medical vehicle 100, it can be identified that the medical vehicle 100 is present at the location where the building communication device is installed, so the building control device can determine whether the medical vehicle 100 is within the management area or outside the management area.

[0101] It is also possible to determine whether the medical cart 100 is inside or outside the management area using a sensor such as a camera mounted on the medical cart 100 .

[0102] The building control device may determine whether the medical vehicle 100 is within or outside the management area by using a sensor such as a camera installed in the building.

[0103] When the medical cart 100 has determined whether the medical cart 100 is within the management area or outside the management area, the medical cart 100 may also notify the building control device. When the building control device has determined whether the medical cart 100 is within the management area or outside the management area, the building control device may also notify the medical cart 100. By communicating with the control circuit 330 of the medical cart 100 through the building control device, either control device can control the building (for example, locking the door) and / or the medical cart 100. In addition, other control devices (for example, a central management device, etc.) may also communicate with the control circuit 330 of the medical cart 100 and / or the building control device to control the building (for example, locking the door) and / or the medical cart 100. That is, the place where the control device is located can be anywhere.

[0104] [Action 1]

[0105] First, the operation when the control circuit 330 causes the output unit 320 to perform a notification regarding the current mode will be described.

[0106] The radiation generating device 110 sets imaging conditions through the input unit 310 , and applies the set imaging conditions to the generator 111 through the control of the input unit 310 , thereby generating radiation.

[0107] In the dynamic imaging mode, the imaging conditions are set by the input / output unit 141 so that pulsed radiation is emitted a plurality of times (eg, 15 times per second) every predetermined time period until the duration is reached in response to a single instruction from the input / output unit 141 .

[0108] In the case where the radiation generating device 110 cannot repeatedly radiate radiation in a pulsed state multiple times within a specified time, radiation may be radiated continuously within a specified time. In the present disclosure, "radiating radiation within a specified time" includes both pulsed radiation in which radiation in a pulsed state is repeatedly radiated multiple times within a specified time, and continuous radiation in which radiation is continuously radiated within a specified time. The duration is, for example, 15 seconds. In the dynamic shooting mode, if radiation is indicated by the radiation indication switch, radiation is radiated using the duration as the maximum radiation time. That is, in the dynamic shooting mode, radiation is radiated within the duration and when the radiation indication switch is operated.

[0109] The intensity of radiation in the dynamic imaging mode may be lower than the intensity of radiation in the fluoroscopic mode.

[0110] In the dynamic imaging mode, the radiation dose of the radiation radiated in a single pulse can also be less than the radiation dose of the radiation radiated in the case of taking a still image, so that the total radiation dose radiated to the patient can be the same as that in the case of taking a still image of the chest. In addition, in the case of continuous radiation, it is desirable to set the imaging conditions so as not to significantly increase the radiation dose of the patient.

[0111] In the perspective mode, the radiation generating device 110 sets the imaging conditions through the input unit 310 based on the control of the control circuit 330, so that the radiation of pulsed radiation is repeated a plurality of times (for example, 15 times per second) every predetermined time based on the operation of the radiation button. In the perspective mode, the duration may not be set. In the perspective mode, a longer duration may be set than in the dynamic imaging mode.

[0112] When the radiation generating device 110 cannot repeatedly radiate radiation in pulse form a plurality of times every predetermined time, radiation may be radiated continuously at a predetermined time. In the fluoroscopy mode, radiation is radiated during the period when radiation is instructed by the radiation button. That is, in the fluoroscopy mode, when the duration is not set, radiation is radiated without time limit during the period when radiation is instructed.

[0113] The control circuit 330 sets various imaging conditions (tube voltage, tube current, radiation time, tube current time product (mAs value), imaging part, imaging direction, etc.) for at least the radiation generating device 110 based on the input from the input unit 310. The control circuit 330 may also set various imaging conditions for the radiation detecting device 120. The control circuit 330 may also set various imaging conditions based on imaging command information obtained from other systems (HIS, RIS, etc.) or based on a user (e.g., a technician). The control circuit 330 may also set various imaging conditions for the radiation generating device 110 and / or the radiation detecting device 120 based on, for example, the imaging command information or a table corresponding to the user and various imaging conditions.

[0114] When the various set imaging conditions do not satisfy the use as a general imaging device and when the current mode notified from the control circuit 330 is the general imaging mode, the control circuit 330 causes the output unit 320 to issue an alarm.

[0115] [model]

[0116] The medical cart 100 has a plurality of modes, such as a general shooting mode and a perspective mode. It may also have more than three modes. The general shooting mode may also be a dynamic shooting mode. The mode may also be set by input from the input unit 310. The mode may also be set by selecting from a plurality of shooting modes displayed on the output unit 320. The mode may also be set by a switch. The shooting mode of the medical cart 100 may also be set according to the patient being shot, the examination order, or the shooting order.

[0117] The radiation dose radiated in the dynamic imaging mode may be different from the radiation dose radiated in the fluoroscopic mode. The radiation dose radiated in the fluoroscopic mode may be greater than the radiation dose radiated in the dynamic imaging mode.

[0118] In addition, the dynamic imaging mode has an emission time, but the fluoroscopic mode does not have an emission time. That is, in the dynamic imaging mode, even if the radiation instruction is continuously output, the medical cart 100 does not emit radiation after the emission time has elapsed, but in the fluoroscopic mode, radiation is always emitted while the radiation instruction is output.

[0119] When the perspective mode is set, the control circuit 330 may cause the input-output unit 141 to display a dynamic image generated by the radiation detection device 120 in real time. When the dynamic shooting mode is set, the control circuit 330 may cause the input-output unit 141 to display a dynamic image that is limited compared to the dynamic image displayed when the perspective mode is set. When the dynamic shooting mode is set, the input-output unit 141 may, for example, display a dynamic image that is delayed relative to the case where the perspective mode is set. When the dynamic shooting mode is set, the input-output unit 141 may, for example, display at a frame rate lower than the case where the perspective mode is set. The control circuit 330 may also limit the dynamic image generated by the radiation detection device 120, and may cause the radiation detection device 120 to limit the dynamic image generated.

[0120] The control circuit 330 causes the input / output unit 141 to display a dynamic image corresponding to the set mode, and can be used in the same manner as a fluoroscopy device in the management area and as a dynamic imaging device in general wards, etc. The radiation dose allowed in the dynamic imaging mode is less than that allowed in the fluoroscopy mode.

[0121] [Pattern Report]

[0122] The dynamic shooting mode is used as a general shooting device, so it can be used in general wards, but the perspective mode is used as a perspective device, so the places where it can be used are strictly limited and it cannot be used in general wards. That is, the medical cart 100 can be used in the perspective mode in specific places, but according to Japanese laws, it needs to be used in the dynamic shooting mode in other places.

[0123] In this regard, the medical cart 100 has an input / output unit 141 to make notifications related to the mode. The output unit 320 may also make notifications urging the user to set the dynamic imaging mode from the fluoroscopic mode. The output unit 320 may also make notifications urging the user to set the dynamic imaging mode from the fluoroscopic mode.

[0124] [Notification period]

[0125] The medical cart 100 may also make a notification before the medical cart 100 moves or when the movement starts. Since the medical cart 100 often moves after being set up, it is effective to make a notification before and / or when the movement starts. For example, the medical cart 100 may also make a notification when the shooting information is acquired from the RIS. The medical cart 100 may also make a notification based on whether the acquired shooting information is perspective or dynamic shooting. For example, the medical cart 100 may also make a notification when the lock of the fixed unit is released. Since the medical cart 100 moves after the lock is released, it can be said that the lock is released before the movement. For example, the medical cart 100 may also make a notification when the movement of the medical cart 100 is detected. The detection of the movement of the medical cart 100 may also be performed by detecting the rotation of the wheel 145. For example, the medical cart 10 may also make a notification when the power supply unit 142 is disconnected from the commercial power supply and the battery-based power supply is started. For example, the medical cart 100 may also make a notification when the power of the main body 140 is turned on and the power supply unit 142 starts supplying power. For example, the medical cart 100 may also make a notification when the communication method of the medical cart 100 is set from wired communication to wireless communication. For example, the medical cart 100 may also make a notification when it detects that the handle 143 is being held.

[0126] The medical cart 100 may make a notification during the movement of the medical cart 100. For example, the medical cart 100 may make a notification when the medical cart 100 moves a predetermined distance. For example, the medical cart 100 may make a notification when a predetermined time has passed since the medical cart 100 started to move.

[0127] The medical cart 100 may also make a notification after the medical cart 100 moves. The medical cart 100 may also make a notification when, for example, the power supply unit 142 is connected to a commercial power source. The medical cart 100 may also make a notification when, for example, the switch of the main body 140 is actuated and the power supply unit 142 starts supplying power. The medical cart 100 may also make a notification when, for example, the fixed unit is locked.

[0128] The medical cart 100 may make a notification when the medical cart 100 starts photographing. For example, the medical cart 100 may make a notification when the start of photographing is instructed by the input unit 310. After the notification, photographing may be started after confirming the mode.

[0129] [Notification method]

[0130] For example, the notification of the medical cart 100 is performed by output to the input-output unit 141. In the case where the input-output unit 141 is separated into the input unit 310 and the output unit 320, the notification can also be performed by output to the output unit 320. The output unit 320 can also perform notification based on display on a monitor, for example. The output unit 320 can also perform notification based on the lighting of a display light of the main body 140, for example. The color of the display light can also be changed according to the current mode. The output unit 320 can also perform notification based on the locking of the fixing unit, for example. The output unit 320 can also perform notification based on sound, for example. The output unit 320 can also perform notification based on vibration of the main body 140 or a part of the main body 140, for example. In the case where the main body 140 is equipped with a handle, the output unit 320 can also perform notification based on the vibration of the handle.

[0131] It is also possible to use multiple notification methods to make notifications. For example, it is also possible to display on a monitor and to make notifications based on sound. For example, it is also possible to make all of display on a monitor, lighting of a display light, notification based on sound, and vibration of a handle.

[0132] [Content of notification]

[0133] The notification related to the setting of the mode may also be the selection of the perspective mode. The notification related to the setting of the mode may also be the selection of the dynamic shooting mode or the general shooting mode. The notification related to the setting of the mode may also be the notification of the current mode. The notification related to the setting of the mode may also be the notification urging the confirmation of the current mode. The notification related to the setting of the mode may also be the completion of the setting of the mode. The notification related to the setting of the mode may also be the notification in the process of setting the mode. The medical car 100 may also notify whether the shooting information obtained from the RIS is perspective or dynamic shooting.

[0134] Figure 4 4 is a diagram showing an example of a window 400 displayed on the screen when notifying that the current mode is the see-through mode. The color of the window 400 may be changed according to the notified mode. By displaying the current mode or notifying that the see-through mode is used, it is possible to urge the user to set the dynamic shooting mode.

[0135] When the current mode is the perspective mode, a button indicating the setting to the dynamic shooting mode may also be displayed. The size of the "OK" button 410 may be different from the size of the "Set to dynamic shooting mode" button 420. The size of the button 410 may be smaller than the size of the button 420. The size of the button 410 may be the same as the size of the button 420.

[0136] When the current mode is the dynamic shooting mode, the size of the button for instructing the setting to the see-through mode may be displayed smaller than the size of the "OK" button. The button for instructing the setting to the see-through mode may not be displayed.

[0137] By reducing the size of the button for maintaining the see-through mode, the operator needs to carefully perform the confirmation operation when using the see-through mode, so that the operator can carefully perform the confirmation operation when using the see-through mode.

[0138] By not displaying the button for instructing setting to the see-through mode or making it a small-sized button, the possibility of setting to the see-through mode due to an erroneous operation can be reduced, thereby preventing radiation exposure due to an erroneous operation.

[0139] Figure 5 FIG. 5 is a diagram showing an example of a window 500 displayed on the screen when notifying that the setting to the dynamic shooting mode has been completed. The color of the window 500 may be changed according to the completed mode.

[0140] Figure 6 6 is a diagram showing an example of a window 600 displayed on the screen when notifying that the setting to the dynamic shooting mode is not completed. The color of the window 600 may be different from the color of the window 500. By notifying that the setting to the dynamic shooting mode is not completed, the setting to the dynamic shooting mode can be urged.

[0141] [flow chart]

[0142] Fig. 9 1 is a diagram showing an example of a flowchart of a process performed by the control circuit 330 . Fig. 9 Determine when to output an alarm. The control circuit 330 performs control according to the state of the medical cart 100.

[0143] The control circuit 330 determines whether the power of the medical cart 100 is on (step S901). If the control circuit 330 determines that the power of the medical cart 100 is on, the control circuit 330 performs the process of step S913. If the control circuit 330 determines that the power of the medical cart 100 is not on, the control circuit 330 performs the process of step S902.

[0144] The control circuit 330 determines whether the fixing unit of the medical cart 100 is released (step S902). If the control circuit 330 determines that the fixing unit of the medical cart 100 is released, the control circuit 330 performs the process of step S913. If the control circuit 330 determines that the fixing unit of the medical cart 100 is not released, the control circuit 330 performs the process of step S903.

[0145] The control circuit 330 determines whether the medical cart 100 is disconnected from the commercial power supply (step S903). The control circuit 330 may also determine whether the battery of the medical cart 100 starts to supply power. If the control circuit 330 determines that the medical cart 100 is disconnected from the commercial power supply, the control circuit 330 performs the processing of step S913. If the control circuit 330 determines that the medical cart 100 is not disconnected from the commercial power supply, the control circuit 330 performs the processing of step S904.

[0146] The control circuit 330 determines whether the medical vehicle 100 has acquired the photographic information from the RIS (step S904). The control circuit 330 may also make a determination based on the content of the acquired photographic information. If the control circuit 330 determines that the medical vehicle 100 has acquired the photographic information from the RIS, the control circuit 330 performs the processing of step S913. If the control circuit 330 determines that the medical vehicle 100 has not acquired the photographic information from the RIS, the control circuit 330 performs the processing of step S905.

[0147] The control circuit 330 determines whether the communication method used by the medical cart 100 is set from wired communication to wireless communication (step S905). If the control circuit 330 determines that the communication method used by the medical cart 100 is set from wired communication to wireless communication, the control circuit 330 performs the processing of step S913. If the control circuit 330 determines that the communication method used by the medical cart 100 is not set from wired communication to wireless communication, the control circuit 330 performs the processing of step S906.

[0148] The control circuit 330 determines whether the handle of the medical cart 100 is held (step S906). If the control circuit 330 determines that the handle of the medical cart 100 is held, the control circuit 330 performs the process of step S913. If the control circuit 330 determines that the handle of the medical cart 100 is not held, the control circuit 330 performs the process of step S907.

[0149] The control circuit 330 determines whether the movement of the medical cart 100 is detected (step S907). The control circuit 330 may also detect the movement of the medical cart 100 by detecting the rotation of the wheel 145. If the control circuit 330 determines that the movement of the medical cart 100 is detected, the control circuit 330 performs the processing of step S913. If the control circuit 330 determines that the movement of the medical cart 100 is not detected, the control circuit 330 performs the processing of step S908.

[0150] The control circuit 330 determines whether the medical cart 100 has moved a specified distance (step S908). The control circuit 330 may also detect whether the medical cart 100 has moved a specified distance by the rotation speed of the wheel 145. If the control circuit 330 determines that the medical cart 100 has moved a specified distance, the control circuit 330 performs the processing of step S913. If the control circuit 330 determines that the medical cart 100 has not moved a specified distance, the control circuit 330 performs the processing of step S909.

[0151] The control circuit 330 determines whether a predetermined time has passed after the mobile car 100 starts to move (step S909). If the control circuit 330 determines that a predetermined time has passed after the mobile car 100 starts to move, the control circuit 330 performs the processing of step S913. If the control circuit 330 determines that a predetermined time has not passed after the mobile car 100 starts to move, the control circuit 330 performs the processing of step S910.

[0152] The control circuit 330 determines whether the fixing unit of the medical cart 100 is locked (step S910). If the control circuit 330 determines that the fixing unit of the medical cart 100 is locked, the control circuit 330 performs the process of step S913. If the control circuit 330 determines that the fixing unit of the medical cart 100 is not locked, the control circuit 330 performs the process of step S911.

[0153] The control circuit 330 determines whether the medical cart 100 is connected to a commercial power source (step S911). If the control circuit 330 determines that the medical cart 100 is connected to a commercial power source, the control circuit 330 performs the process of step S913. If the control circuit 330 determines that the medical cart 100 is not connected to a commercial power source, the control circuit 330 performs the process of step S912.

[0154] The control circuit 330 determines whether the medical cart 100 is instructed to start photographing (step S912). If the control circuit 330 determines that the medical cart 100 is instructed to start photographing, the control circuit 330 performs the process of step S913. If the control circuit 330 determines that the medical cart 100 is not instructed to start photographing, the control circuit 330 returns to step S901.

[0155] The control circuit 330 causes the input / output unit 141 to make a notification related to the setting of the shooting mode (step S913). That is, if the judgment is yes in any step from S901 to S912, the notification related to the setting of the shooting mode is made. The display mode may also be changed depending on which step is judged as yes.

[0156] When the input / output unit 141 is notified in step S913, or when a negative determination is made in any of steps S901 to S912, the process returns to step S901.

[0157] Part of steps S901 to S912 may not be performed.

[0158] "Notifications related to the shooting mode settings" may also be about Fig.10 The notification of the processing performed in step S1003, such as "lock the door", can also be about Fig.10The notification of the processing performed in step S1004 may be, for example, "limit the radiation dose". The "notification related to the setting of the imaging mode" may also be output from the output unit 320 of the medical cart 100, or from an output device installed in the building. The "notification related to the setting of the imaging mode" may also include multiple contents. For example, the notification may be "It has been set to the perspective mode. Please lock the door."

[0159] [Action 2]

[0160] Next, the operation in the case of causing a building to output an alarm will be described.

[0161] The building control device recognizes whether the medical vehicle 100 is present in the management area or outside the management area.

[0162] Whether the medical vehicle 100 is inside or outside the management area can also be determined by the building control device, or the medical vehicle 100 can send the determination result to the building control device. In addition, the building control device can also identify the status (mode, location, movement status, etc.) of the medical vehicle 100 by receiving it from the communication unit 144.

[0163] For example, the building control device may also output an alarm in the building according to the state of the recognized medical vehicle 100. The alarm may also be the same as the alarm of the medical vehicle 100. For example, the mode of the medical vehicle 100 may be displayed on a display provided in the management area. For example, when the medical vehicle 100 set to the perspective mode exists outside the management area, the building control device may also sound a buzzer provided outside the management area. For example, when the medical vehicle 100 set to the perspective mode exists within the management area, a message such as "Please lock the door" may be output from an output device (e.g., a display, a speaker, etc.) within the management area. The alarm issued by the building control device and the alarm issued by the medical vehicle 100 may be the same or different. For example, the control circuit 330 of the medical vehicle 100 may output "Set to perspective mode" from the display of the medical vehicle 100, and the building control device may output "Please lock the door" from the speaker in the management area. For example, the sound output by the building control device and the sound output by the output unit 320 of the medical vehicle 100 may have different timbres.

[0164] [Action 3]

[0165] Next, the rigid response of the medical cart 100 will be described.

[0166] The medical vehicle 100 identifies whether the medical vehicle 100 is in the management area or outside the management area. The medical vehicle 100 may determine whether the medical vehicle 100 is in the management area or outside the management area, or the building management device may determine whether the medical vehicle 100 is in the management area or outside the management area. The medical vehicle 100 receives the result of the determination by the building management device from the communication unit 144, thereby performing the identification.

[0167] When the medical cart 100 set to the perspective mode is identified as existing in the management area, the control circuit 330 prevents the medical cart 100 from moving outside the management area. For example, the control circuit 330 controls the fixing unit (not shown) to fix the wheels 145 of the medical cart 100. For example, the control circuit 330 controls the fixing unit (not shown) to fix the medical cart 100 to a line that is fixed to a wall constituting the management area. The movement of the medical cart 100 is limited to the range of the line. The control circuit 330 performs at least one of fixing the wheels 145 and fixing the line.

[0168] When the medical cart 100 is set to the fluoroscopic mode, the control circuit 330 may make the medical cart 100 immobile. In this case, the fluoroscopic mode is set at the place where the medical cart 100 is used.

[0169] When the medical cart 100 is recognized as being outside the control area, it limits the radiation emission outside the control area, for example, by performing at least one of the following (1) to (7).

[0170] (1) The control circuit 330 turns off (power off) the medical cart 100. If the medical cart 100 is moved outside the management area, the power of the medical cart 100 is temporarily turned off. For example, when the medical cart is set to the dynamic analysis mode by default, the dynamic analysis mode can be set when the power of the medical cart 100 is turned on. Reset can also be performed instead of shutting down. In addition, since it is necessary to reset, radiation under the previous setting (for example, fluoroscopy mode) can be prevented.

[0171] (2) The control circuit 330 stops the power supply to the medical cart 100. When the power supply to the medical cart 100 is stopped, the medical cart 100 operates with the power of the battery. For example, when the power of the battery is not large and the radiation in the fluoroscopy mode cannot be used with the battery, the radiation in the fluoroscopy mode can be prevented.

[0172] (3) The control circuit 330 cuts off (turns off) the power supply to the radiation generator 110. By cutting off the power supply to the radiation generator 110, radiation based on the fluoroscopy mode can be prevented. When it is recognized that the medical cart 100 is set to the dynamic analysis mode or is in the management area, the power supply to the radiation generator can be restarted.

[0173] (4) The control circuit 330 switches the mode of the radiation generator 110 to the dynamic imaging mode. For example, if it is recognized that the medical cart 100 is outside the management area, the control circuit 330 forcibly sets (changes) the mode of the radiation generator 110 to the dynamic imaging mode.

[0174] (5) The control circuit 330 disables the fluoroscopic mode. For example, if it is recognized that the medical cart 100 is outside the management area, the control circuit 330 does not operate the radiation generator 110 in the fluoroscopic mode.

[0175] (6) The control circuit 330 prevents radiation exceeding the upper limit (permissible radiation dose) from being emitted from the radiation generating device 110. The control circuit 330 may also change (e.g., reduce) the upper limit (permissible radiation dose). For example, the control circuit 330 prevents radiation exceeding the permissible radiation dose from being emitted by limiting the irradiation time in the fluoroscopy mode.

[0176] (7) The control circuit 330 disables the setting of the fluoroscopic mode. For example, the control circuit 330 grays out the fluoroscopic mode in the setting screen of the medical cart 100. The control circuit 330 may enable the change to the fluoroscopic mode when it is determined that the medical cart 100 is in the management area.

[0177] The control circuit 330 can prevent radiation that exceeds the permissible radiation dose (upper limit) outside the management area by limiting the radiation outside the management area.

[0178] [Action 4]

[0179] Next, the rigid response of buildings will be explained.

[0180] The building control device identifies whether the medical vehicle 100 is in the management area or outside the management area, and whether it is in the perspective mode or the general shooting mode. The building control device may determine whether the medical vehicle 100 is in the management area or outside the management area, or the medical vehicle 100 may determine whether the medical vehicle 100 is in the management area or outside the management area, and the building control device receives the judgment of the medical vehicle 100, so that the building control device identifies it. The building control device identifies whether the medical vehicle 100 is in the perspective mode or the general shooting mode by receiving the information from the medical vehicle 100 whether it is in the perspective mode or the general shooting mode.

[0181] The building control device controls the locks of the doors constituting the management area according to the state of the medical cart 100. For example, when the medical cart 100 is in the management area and the perspective mode is set, the building control device locks the doors constituting the management area. In addition, when the medical cart 100 is outside the management area, or when the medical cart 100 is in the management area and the dynamic shooting mode is set, the building control device unlocks the doors constituting the management area.

[0182] When there are multiple medical carts 100, the door constituting the management area may be locked when at least one medical cart 100 is in the management area and is set to the perspective mode. The door may be temporarily unlocked when another medical cart 100 moves into the management area.

[0183] By locking the door, it is possible to prevent the medical cart 100 set to the fluoroscopic mode from moving outside the management area.

[0184] In addition, the wire fixed to the medical cart 100 may be fixed to or released from the wall constituting the management area. By fixing the wire fixed to the medical cart 100 to the wall constituting the management area, the movement of the medical cart 100 is limited to the range of the wire, thereby preventing the medical cart 100 from moving outside the management area.

[0185] The building control device performs at least one of control of the lock of the door and fixing or releasing of the wire.

[0186] <Modification>

[0187] The control circuit 330 is expected to have a function of limiting the operation of the radiation button in the fluoroscopic mode. The control circuit 330 is expected to perform user authentication and only allow authenticated users to operate the radiation button in the fluoroscopic mode. The authenticated user is a user such as a physician or a radiographer whose authority is set by the hospital. The authentication can use a well-known authentication unit such as an ID or an account number, a password, a staff card, and / or biometric authentication.

[0188] The control circuit 330 may also perform user authentication. If the control circuit 330 authenticates the user to whom the permission is set, the control circuit 330 may allow the change to the perspective mode. If the user is not authenticated to whom the permission is set, the control circuit 330 may limit the operation to the dynamic shooting mode, or may not disable all operations. The control circuit 330 may also authenticate the user to allow the operation limited to the dynamic shooting mode.

[0189] The control circuit 330 may also allow the change to the first mode when the imaging command or inspection command received from the RIS or the like is imaging or inspection using the perspective mode. The control circuit 330 may also make settings based on the imaging command or inspection command received from the RIS. The control circuit 330 may also change the settings made based on the imaging command or inspection command received from the RIS through the input / output unit 141.

[0190] The building control device may not be installed in the building where the management area is installed. For example, the control circuit 330 of the medical vehicle 100 may be used for control, or a control device installed in another building may be used for remote control.

[0191] It is also possible to recognize whether the medical cart 100 is in a specific place where a fluoroscopic device can be used, or in a place where a fluoroscopic device cannot be used but a general imaging device can be used, and automatically set the mode of the medical cart 100. When the mode of the medical cart 100 has been set, or when it is recognized that the medical cart 100 is in a place where a fluoroscopic device can be used, notification related to the setting of the mode can be made through the input / output unit 141.

[0192] When the see-through mode is to be set or when the see-through mode has already been set, a confirmation screen may be displayed.

[0193] The control circuit 330 may also always make notifications related to the mode setting. The control circuit 330 may also make notifications through multiple notification units. For example, the control circuit 330 may always make notifications of the current mode through a display lamp, and make notifications based on the display on the monitor when the medical cart 100 is instructed to start imaging.

[0194] Figure 7 FIG. 7 is a diagram showing an example window 700 displayed on the screen when the see-through mode can be selected.

[0195] In addition, the medical cart 100 may automatically set the fluoroscopic mode and the dynamic imaging mode based on the imaging information received from the RIS, and notify the set mode or the completion of the mode setting through the input / output unit 141. The size of the button 710 for "changing to the fluoroscopic mode" may be different from the size of the button 720 for "maintaining the dynamic imaging mode without changing". The size of the button 710 may be smaller than the size of the button 720. The size of the button 710 may be the same as the size of the button 720.

[0196] When changing to the perspective mode, a confirmation window may be displayed.

[0197] Figure 8 8 is a diagram showing an example of a confirmation window 800 when changing to the perspective mode. In the window 800, the size of the button 810 selected when the "perspective mode" where the use is limited is set may be reduced compared to the size of the button 820 selected when the "dynamic shooting mode" is set to be used as a general shooting device. In addition, the confirmation screen may not be displayed when the dynamic shooting mode is set, and the confirmation screen may be displayed when the perspective mode is set.

[0198] By making the setting unit display the button selected when changing to the fluoroscopic mode as a smaller button than the button selected when changing to the dynamic imaging mode, more careful processing can be performed when the medical cart 100 is set to the fluoroscopic mode.

[0199] Furthermore, since the setting unit displays the confirmation screen only when the fluoroscopic mode is set, more careful processing can be performed when the medical cart 100 is set to the fluoroscopic mode.

[0200] The above descriptions of the embodiments are made with reference to the accompanying drawings, but the present disclosure is not limited to such examples. It is obvious that a person skilled in the art can think of various variations or modifications within the scope described in the claims. Such variations or modifications are also understood to belong to the technical scope of the present disclosure. In addition, the constituent elements in the embodiments may be arbitrarily combined without departing from the scope of the present disclosure.

[0201] (1) A mobile radiation imaging system in one embodiment of the present disclosure comprises: a radiation generating device that can be set to a plurality of imaging modes and radiates radiation, wherein the plurality of imaging modes include a first mode for performing fluoroscopic imaging and a second mode as a general imaging mode for acquiring a series of multi-frame images by irradiating a subject with radiation; and a control device that restricts the use of the first mode outside a management area.

[0202] (2) A mobile radiographic system in one embodiment of the present disclosure In the mobile radiographic system of (1), the mobile radiographic system is a medical cart, and the medical cart includes the radiation generating device and the control device.

[0203] (3) A mobile radiation imaging system in one embodiment of the present disclosure In the mobile radiation imaging system of (2), the control device is at least one of the following control devices: (1) a control device for controlling the medical vehicle; and (2) a control device for controlling a building in which a management area is set, and performs at least one of the following: (1) outputting an alarm to a user; and (2) limiting the radiation emission outside the management area of ​​the medical vehicle.

[0204] (4) A mobile radiography system in one embodiment of the present disclosure. In the mobile radiography system of (3), the alarm is notified at least one of the following times: (1) before the medical cart moves and / or starts moving; (2) when the fixing unit of the medical cart is released; (3) when the medical cart is disconnected from the commercial power supply; (4) when the medical cart obtains imaging information from the radiology information system (RIS); (5) when the communication between the main body of the medical cart and the radiation detection device is switched from wired communication to wireless communication; (6) when the handle of the medical cart is detected to be gripped; (7) when the movement of the medical cart is detected; (8) during the movement of the medical cart; (9) when the medical cart moves a specified distance; (10) when a specified time has passed since the medical cart started moving; (11) after the medical cart moves; (12) when the fixing unit of the medical cart is locked; (13) when the medical cart is connected to the commercial power supply; and (14) when an instruction to start imaging is given.

[0205] (5) A mobile radiographic system in one embodiment of the present disclosure In the mobile radiographic system of (3), the alarm is a notification performed by at least one of: (1) display on a monitor; (2) lighting; and (3) sound.

[0206] (6) In a mobile radiation imaging system in one embodiment of the present disclosure, in the mobile radiation imaging system of (2), the alarm notifies at least one of the following: (1) it is a perspective mode; (2) the current mode; and (3) the setting of the mode has been completed.

[0207] (7) In one embodiment of the present disclosure, in the mobile radiation imaging system of (1), the control device is a control device for controlling the medical vehicle, and performs at least one of the following: (1) outputting an alarm to the user; and (2) limiting the radiation emission outside the management area of ​​the medical vehicle.

[0208] (8) In the mobile radiographic system according to one embodiment of the present disclosure, in the mobile radiographic system according to (6), when the first mode is set, the control device prevents the medical cart from moving outside a management area.

[0209] (9) A mobile radiation imaging system in one embodiment of the present disclosure In the mobile radiation imaging system of (7), the control device performs at least one of the following: (1) controlling a fixing unit that fixes the medical cart; and (2) fixing the medical cart to a line, wherein the line is fixed to a wall constituting a management area.

[0210] (10) In one embodiment of the present disclosure, in the mobile radiation imaging system of (6), when the radiation generating device is outside the management area, the control device controls the radiation generating device so that it cannot radiate a radiation dose exceeding the allowable radiation dose.

[0211] (11) In one embodiment of the present disclosure, in the mobile radiography system of (9), when it is recognized that the radiation generating device is set to the first mode and the medical cart is outside the management area, the control device performs at least one of the following: (1) shutting down the medical cart; (2) stopping the power supply to the medical cart; (3) cutting off the power supply to the radiation generating device; (4) switching the mode of the radiation generating device to the second mode; (5) making the first mode unusable; (6) preventing the radiation generating device from emitting radiation exceeding the allowable radiation dose; and (7) making it impossible to set the fluoroscopy mode.

[0212] (12) In one embodiment of the present disclosure, in the mobile radiation imaging system of (1), the control device is a control device for controlling a building in which a management area is set, and performs at least one of the following: (1) outputting an alarm to a user; and (2) limiting the radiation emission outside the management area of ​​the medical vehicle.

[0213] (13) A mobile radiography system in one embodiment of the present disclosure In the mobile radiography system of (11), when the above-mentioned medical cart is present in the management area, the above-mentioned control device performs at least one of the following: (1) locking the lock of the door constituting the management area; and (2) fixing the wire fixed to the above-mentioned medical cart to the wall constituting the management area.

[0214] (14) In one embodiment of the present disclosure, a method for limiting the use of a mobile radiation imaging system is provided, in a mobile radiation imaging system that can be set to have multiple imaging modes including a first mode for performing fluoroscopic imaging and a second mode as a general imaging mode for acquiring a series of multi-frame images by irradiating a subject with radiation, and the use of the first mode is limited outside a management area.

[0215] The present disclosure is useful for a radiation imaging apparatus.

Claims

1. A mobile radiographic imaging system, wherein: have: a radiation generating device capable of being set to a plurality of imaging modes including a first mode for performing fluoroscopic imaging and a second mode as a general imaging mode for acquiring a series of multi-frame images by irradiating an object with radiation, and emitting radiation; and The control device restricts the use of the first mode outside the management area.

2. The mobile radiation imaging system according to claim 1, wherein: The mobile radiography system is a medical patrol vehicle. The medical cart includes the radiation generating device and the control device.

3. The mobile radiation imaging system according to claim 2, wherein: The control device is at least one of the following: (1) a control device for controlling the above-mentioned medical vehicle; and (2) Control devices for controlling buildings where management areas are located, And do at least one of the following: (1) outputting an alert to the user; and (2) The radiation emitted by the above-mentioned mobile clinic vehicles is restricted outside the management area.

4. The mobile radiation imaging system according to claim 3, wherein: The above alerts notify when at least one of the following occurs: (1) Before the above-mentioned mobile clinic moves and / or when the movement begins; (2) When the fixing unit of the above-mentioned medical vehicle is released; (3) When the above-mentioned medical vehicle is disconnected from the commercial power supply; (4) When the above-mentioned mobile clinic obtains the imaging information from the Radiology Information System (RIS); (5) When the communication between the main body of the medical vehicle and the radiation detection device is switched from wired communication to wireless communication; (6) When it is detected that the handle of the medical cart is being held; (7) When the movement of the above-mentioned medical patrol vehicle is detected; (8) During the movement of the above-mentioned medical patrol vehicle; (9) When the above-mentioned medical vehicle moves a prescribed distance; (10) When a prescribed time has passed since the above-mentioned medical vehicle started to move; (11) After the above-mentioned medical vehicle moves; (12) When the fixed unit of the above-mentioned mobile medical vehicle is locked; (13) When the above-mentioned mobile medical vehicle is connected to a commercial power source; and (14) When instructed to start filming.

5. The mobile radiation imaging system according to claim 3, wherein: The above alert is a notification made by at least one of the following: (1) Display on a monitor; (2) light up; and (3) Sound.

6. The mobile radiation imaging system according to claim 3, wherein: The above alert notifies at least one of the following: (1) is the perspective mode; (2) the current model; and (3) The mode setting is complete.

7. The mobile radiation imaging system according to claim 2, wherein: The control device is a control device for controlling the medical patrol vehicle, and performs at least one of the following: (1) outputting an alert to the user; and (2) The radiation generating device is restricted from emitting radiation outside the managed area.

8. The mobile radiation imaging system according to claim 7, wherein: When the first mode is set, the control device prevents the medical vehicle from moving outside a management area.

9. The mobile radiation imaging system according to claim 8, wherein: The control device performs at least one of the following: (1) controlling a fixing unit for fixing the above-mentioned medical vehicle; and (2) The medical patrol vehicle is fixed to a line, and the line is fixed to a wall constituting a management area.

10. The mobile radiation imaging system according to claim 7, wherein: When the radiation generating device is outside the management area, the control device performs control so that the radiation generating device cannot radiate a radiation dose exceeding an allowable radiation dose.

11. The mobile radiation imaging system according to claim 10, wherein: When recognizing that the radiation generating device is set to the first mode and the medical vehicle is outside the management area, the control device performs at least one of the following: (1) Shut down the above-mentioned medical patrol vehicles; (2) Stop the power supply to the above-mentioned medical vehicle; (3) Cutting off the power supply to the radiation generating device; (4) switching the mode of the radiation generating device to the second mode; (5) making the first mode described above unusable; (6) preventing radiation from being emitted from the radiation generating device in excess of the permissible radiation dose; and (7) It is impossible to set the perspective mode.

12. The mobile radiation imaging system according to claim 2, wherein: The control device is a control device for controlling a building in which a management area is provided, and performs at least one of the following: (1) outputting an alert to the user; and (2) The radiation generating device is restricted from emitting radiation outside the managed area.

13. The mobile radiation imaging system according to claim 12, wherein: When the medical patrol vehicle is present in the management area, the control device performs at least one of the following: (1) Lock the doors that constitute the management area; and (2) The wire fixed to the above-mentioned medical patrol vehicle is fixed to the wall constituting the management area.

14. A method for limiting a mobile radiation imaging system, wherein: In a mobile radiographic system capable of being set to a plurality of imaging modes including a first mode for performing fluoroscopic imaging and a second mode as a general imaging mode for acquiring a series of multi-frame images by irradiating a subject with radiation, The use of the first mode is restricted outside the management area.

Images