JP2018191842A - Wireless foot switch and medical image diagnostic system - Google Patents

Abstract

To provide a wireless foot switch capable of optimizing settings of a switch, and a medical image diagnostic system.SOLUTION: A wireless foot switch is a foot-operated wireless foot switch used for a plurality of controlled devices in common, and includes: a display part for displaying information indicating a plurality of functions of the controlled devices according to the controlled devices; an input part equipped with a plurality of switches for receiving operations corresponding to the plurality of functions of the controlled devices; and a transmission part for generating a control signal corresponding to an operated switch of the plurality of switches, and transmitting a radio signal to the controlled devices.SELECTED DRAWING: Figure 2

Description

  Embodiments described herein relate generally to a wireless foot switch and a medical diagnostic imaging system.

  In the medical field, various medical devices are used for diagnosing, treating, or preventing diseases. Some instruments and machines used in hospitals are not limited to medical use. Hereinafter, electric devices including medical devices, instruments, and machines are collectively referred to as medical devices. There are a wide variety of medical devices used in hospitals.

  Each device is provided with a plurality of functions depending on the type of the device. The user executes the function by performing an operation corresponding to each function. When the types of devices are different, even if each device has the same function, an operation for executing the function may be different. In addition, even if the type of device is the same, if the manufacturer is different, the operation for executing the same function may differ depending on the device. Furthermore, the installation location of the switch for operating the apparatus differs depending on the apparatus. In addition, the type of switch, switch arrangement, and pictogram may differ depending on the device.

  Here, the “switch” is an input means for operating the apparatus, and the function assigned to the switch is executed when the user operates the switch. The “pictogram” is a symbol, an illustration, a character, or a pictogram indicating a function executed by operating a switch.

  Since the installation location of the switch differs depending on the device, the user has to search for the installation location of the switch every time the user tries to operate the device. In addition, since the position of the switch and the pictogram differ from device to device, the user may not be able to instantly determine which switch to operate.

  Furthermore, even users who use the same device may use different functions for each user. Since the switch setting is performed before installation adjustment, it cannot be changed according to actual operation after installation adjustment, which is inconvenient. Also, switch settings are not optimized for each user application.

Japanese Patent Laid-Open No. 2002-291058

  The problem to be solved by the present invention is to provide a wireless foot switch and a medical diagnostic imaging system that can optimize the setting of the switch.

  A wireless foot switch according to an embodiment is a stepping type wireless foot switch that is commonly used for a plurality of control target devices, and information indicating a plurality of functions of the control target device is stored in the control target device. Generating a control signal corresponding to the operated switch among the plurality of switches, a display unit displaying in response, an input unit including a plurality of switches that accept operations corresponding to a plurality of functions of the device to be controlled And a transmitter that transmits a radio signal to the device to be controlled.

The conceptual lineblock diagram showing an example of a medical image diagnostic system provided with a wireless foot switch concerning an embodiment. The block diagram which shows the function structural example of the wireless foot switch which concerns on 1st Embodiment. The perspective view and sectional drawing of the wireless foot switch which concern on 1st Embodiment. The flowchart which shows an example of operation | movement of the wireless foot switch which concerns on 1st Embodiment. The schematic diagram explaining switch function information. The schematic diagram which shows the example of a display of the wireless foot switch which concerns on 1st Embodiment. The perspective view and top view of the modification of the wireless foot switch which concerns on 1st Embodiment. The block diagram which shows the function structural example of the wireless foot switch which concerns on 2nd Embodiment. The perspective view and sectional drawing of the wireless foot switch which concern on 2nd Embodiment. The schematic diagram explaining the switch function information in case a control object apparatus is a bed apparatus. The top view of the wireless foot switch in case a control object apparatus is a bed apparatus. The schematic diagram explaining the switch function information in case a control object apparatus is an X-ray tube holding | maintenance apparatus. The top view of a wireless foot switch in case a controlled object device is an X-ray tube holding device. The top view of the wireless foot switch which shows the modification of the installation position of LED. Schematic diagram of a wireless foot switch used in common by multiple modalities.

  Hereinafter, a wireless foot switch and a medical image diagnostic system of an embodiment will be described with reference to the drawings.

[overall structure]
FIG. 1 is a conceptual configuration diagram illustrating an example of a medical image diagnostic system including a wireless foot switch according to an embodiment. Here, a case where the medical image diagnostic system 1 includes a modality and a wireless foot switch 60 for operating the modality will be described as an example. However, the wireless foot switch 60 is a component independent of the medical image diagnostic system 1. There may be.

  FIG. 1 shows a medical image diagnostic system 1 including an X-ray apparatus 2a as an example of a modality. The modality includes medical devices such as an X-ray CT (Computed Tomography) apparatus, an MRI (Magnetic Resonance Imaging) apparatus, an X-ray angio apparatus, a mammography apparatus, a nuclear medicine diagnostic apparatus, and a radiotherapy apparatus.

  The X-ray device 2 a includes a high voltage generator 10, an X-ray tube holding device 20, a stand device 30, a bed device 40, and a communication control device 50. The X-ray tube holding device 20, the stand device 30, the bed device 40, and the communication control device 50 are installed in an examination room, and the high voltage generator 10 is installed in a control room or a machine room adjacent to the examination room.

  The high voltage generator 10 generates a high voltage and supplies the generated high voltage to the X-ray tube 23. That is, the high voltage generator 10 adjusts the voltage and current supplied to the X-ray tube 23 to adjust the X-ray dose irradiated to the subject and turn on / off the X-ray irradiation to the subject. Control.

  The high voltage generator 10 includes an operation panel (not shown). The operation panel is provided with a tube voltage and tube current adjustment switch for adjusting the X-ray dose, and an X-ray dose setting switch.

  Note that a switch is associated with a switch operation and a function executed by the switch. In the case of a push button type switch, an operation of pressing the push button type switch is associated with a function executed when the switch is pressed.

  The X-ray tube holding device 20 includes a support column 21, an imaging unit 27, and a moving mechanism 25. The imaging unit 27 is fixed to the support column 21, and a switch SW1, an aperture control device 22, an X-ray tube 23, and an X-ray movable aperture 24 are integrally configured.

  The moving mechanism 25 including moving means such as wheels may move the column portion 21 and the imaging unit 27 integrally in the horizontal direction along the rail 26 laid on the ceiling of the examination room, for example. The support column 21 and the imaging unit 27 may be integrally moved in the horizontal direction along the rail laid on the rail or the rail laid on both the floor and the wall.

  The support column 21 is configured to be extendable and contractable in the vertical direction. The imaging unit 27 moves up and down along the vertical direction by the expansion and contraction of the support column 21. Further, the imaging unit 27 is rotatably attached to the support column 21, and the X-ray irradiation direction of the X-ray tube 23 can be changed by rotating the imaging unit 27.

  The X-ray tube 23 generates X-rays by accelerating the thermoelectrons emitted from the cathode by the voltage supplied from the high voltage generator 10 and colliding with the anode target.

  The X-ray movable diaphragm 24 adjusts the irradiation range of X-rays irradiated from the X-ray tube 23 according to the control of the diaphragm controller 22. The X-ray movable diaphragm 24 may be composed of a plurality of lead wings or a collimator having shutter wings parallel to the tube axis of the X-ray tube 23.

  The aperture control device 22 includes a switch (not shown) that adjusts the X-ray irradiation range. The switches provided in the diaphragm control device 22 include a switch that adjusts the opening degree of the lead feathers constituting the X-ray movable diaphragm 24 and a switch that irradiates light at the center of the irradiation field to determine the imaging position of the subject. It is.

  The switch SW1 includes a plurality of switches for adjusting the position of the imaging unit 27. The switches for adjusting the position of the imaging unit 27 include a switch for fixing the horizontal position of the column 21 with respect to the rail 26 and a switch for releasing the fixation of the horizontal position of the column 21 with respect to the rail 26. By releasing the fixing of the horizontal position of the column 21, the column 21 and the imaging unit 27 can be moved along the rail 26 in the horizontal direction.

  Note that the switch for executing the horizontal movement of the imaging unit 27 may be a deadman switch. The deadman switch is a switch that performs its function only while the user operates the switch. Therefore, when the switch for executing the horizontal movement of the image pickup unit 27 is a deadman switch, the image pickup unit 27 moves horizontally while the switch is operated, and when the switch operation is stopped, the image pickup unit 27 stops.

  Further, the switch SW1 includes a switch for releasing the fixation of the imaging unit 27 to the support column 21 and a switch for fixing the imaging unit 27 to the support column 21. The image pickup unit 27 can be rotated by operating a switch for releasing the fixation of the image pickup unit 27 to the support column 21. As in the case of the horizontal movement of the imaging unit 27, the switch for executing the rotational movement of the imaging unit 27 may be a deadman switch.

  The switch SW1 may further include a switch that adjusts the expansion and contraction of the support column 21, a switch that adjusts the X-ray dose, or a switch that controls ON / OFF of X-ray irradiation.

  The stand device 30 includes a support base 31, a detection unit 33, a switch SW3, and a foot switch SW4. The detection unit 33 includes a standing position detector 32 and a switch SW2. The stand apparatus 30 is an apparatus used when imaging a subject in a standing position.

  The detection unit 33 is attached to the support base 31 so as to be vertically movable in the vertical direction. The detection unit 33 is attached to the support base 31 so as to be movable in a direction perpendicular to the vertical direction and parallel to the z-axis of the apparatus coordinate system of the X-ray apparatus 2a. Further, the detection unit 33 is attached to the support base 31 so as to be tiltable by a predetermined angle.

  Here, as an example, the apparatus coordinate system of the X-ray apparatus 2a is defined as follows. That is, the vertical direction is the y-axis direction, and the longitudinal direction of the support base 31 is parallel to the y-axis. 1 is defined as the x-axis direction, and the direction perpendicular to the y-axis and the x-axis is defined as the z-axis.

  The standing detector 32 includes an X-ray detector that detects X-rays emitted from the X-ray tube 23 and transmitted through the subject. The X-ray detector includes a plurality of detection elements (charge storage elements). The X-ray detector detects X-rays that have passed through the subject, converts them into electrical signals, and generates an X-ray image using the converted electrical signals. The X-ray detector may detect X-rays indirectly by detecting visible light after converting the X-rays into visible light by a scintillator, or may detect X-rays directly. But it ’s okay. The X-ray detector may be an X-ray photographic film.

  The switch SW2 is a switch for tilting the detection unit 33 with respect to the support base 31. An arrow 34 indicates the tilt direction of the detection unit 33. The detection surface of the detection unit 33 is parallel to the y axis in the initial state. The switch SW2 tilts the detection unit 33 so that the normal direction of the detection surface of the detection unit 33 is directed toward the ceiling or floor of the examination room from the initial state.

  The switch SW3 is a switch for setting the size of the detection surface in the standing position detector 32, a switch for setting the position of the detection surface in the standing position detector 32, and the movement of the detection unit 33 and the movement of the imaging unit 27 are linked. Includes switch. Further, the switch SW3 may include a switch for adjusting the X-ray movable diaphragm 24.

  The foot switch SW4 is a switch for adjusting the position of the detection unit 33 in the vertical direction (y-axis direction). The user adjusts the position of the detection unit 33 with a switch that moves the detection unit 33 vertically upward along the support base 31 and a switch that moves the detection unit 33 vertically downward.

  The couch device 40 includes a top board 41, a prone position detector 42, a base 43, and a foot switch SW5. The bed apparatus 40 is installed on the floor surface of the examination room, and a subject is placed on the top surface of the top board 41. The couch device 40 is a device used when imaging a subject in a supine position.

  The top plate 41 is movable in the xz plane. The base portion 43 adjusts the position of the top plate 41 in the vertical direction (y-axis direction). Hereinafter, the movement of the top board 41 in the xz plane perpendicular to the y-axis direction of the top board 41 is referred to as horizontal movement of the top board 41, and the vertical movement of the top board 41 is moved up the bed and moved downward in the vertical direction. Is called a couch descent.

  The foot switch SW5 is a switch of the bed apparatus 40 that moves the top board 41. The foot switch SW5 includes a bed raising switch, a bed lowering switch, and a switch for releasing the fixation of the top board 41 to the base portion 43. When the switch for releasing the fixation of the top plate 41 to the base portion 43 is operated, the top plate 41 can be manually moved horizontally. The couch device 40 may be configured such that the top board 41 moves horizontally by operating a switch. For example, the bed apparatus 40 may be configured such that the horizontal movement direction of the top board 41 is input by a cross switch.

  The foot switch SW5 may be configured to execute X-ray imaging and X-ray fluoroscopy in addition to the operation of the top board 41. Here, X-ray imaging is a function of acquiring an X-ray image by irradiating a subject with X-rays. X-ray fluoroscopy is a function of collecting a large number of X-ray images in time series with a low X-ray dose for the same subject.

  Similar to the standing position detector 32, the lying position detector 42 includes an X-ray detector that detects X-rays emitted from the X-ray tube 23 and transmitted through the subject. An X-ray image is generated based on the X-ray signal detected by the X-ray detector.

  As described above, the switch and operation panel switch setting provided in each apparatus constituting the X-ray apparatus 2a are performed before installation adjustment, and the setting cannot be changed after installation adjustment. On the other hand, the wireless foot switch 60 according to the present embodiment can change the setting of the switch in accordance with the actual operation even after installation adjustment. Hereinafter, a configuration different from the conventional X-ray apparatus 2a and a configuration of the wireless foot switch 60 will be described.

  The communication control device 50 is an interface that relays transmission and reception of signals between each device constituting the X-ray device 2 a and the wireless foot switch 60. In the configuration example of FIG. 1, there are four devices constituting the X-ray device 2 a, that is, the high voltage generation device 10, the X-ray tube holding device 20, the stand device 30, and the bed device 40. Hereinafter, each device constituting the X-ray apparatus 2a is referred to as each component device 10, 20, 30, 40.

  The communication control device 50 includes a transceiver (not shown) and supervises wireless communication with the wireless foot switch 60. The communication control device 50 is connected to each component device 10, 20, 30, 40 in a wired or wireless manner, and the communication control device 50 includes the wireless foot switch 60 of the component devices 10, 20, 30, 40. The control signal received from the wireless foot switch 60 is transmitted to the device to be controlled. Further, the communication control device 50 receives the identification signal from each component device 10, 20, 30, 40 and transmits it to the wireless foot switch 60.

  Note that the medical image diagnostic system 1 may be configured such that each component device 10, 20, 30, 40 directly transmits and receives a radio signal to / from the wireless foot switch 60 without using the communication control device 50. In addition, each component device 10, 20, 30, 40 may include a transceiver that communicates directly and wirelessly with the wireless foot switch 60, and these transceivers may be detachable from each device (see FIG. Not shown).

  Here, the wireless communication is wireless communication using radio waves, infrared rays, or ultrasonic waves. The transceiver generates a transmission signal and a reception signal according to a communication protocol according to the wireless communication standard.

  The wireless foot switch 60 is a foot-operated switch that is commonly used for remote operation of each component device 10, 20, 30, 40.

  Further, the wireless foot switch 60 may be a self-propelled wireless foot switch having moving means such as wheels and a motor. The self-propelled wireless foot switch, for example, waits at a predetermined place in the examination room when not in use, and moves by a moving means so as to detect the user entering the examination room and maintain a constant distance from the user. . Further, the self-propelled wireless foot switch may be configured to move in accordance with the movement of the user by identifying the user even when there are a plurality of persons in the examination room. The self-propelled wireless foot switch moves to a waiting place when the user leaves the examination room.

  Note that the self-propelled wireless foot switch identifies the user based on, for example, a radio frequency identifier (RFID) tag of an employee ID worn by the user. The self-propelled wireless foot switch may include a camera that recognizes the user's face, and may identify the user using a face recognition system.

[First Embodiment]
(1) Configuration FIG. 2 is a functional block diagram illustrating a functional configuration example of the wireless foot switch 60a according to the first embodiment. 2 includes a transmission / reception circuit 61, a processing circuit 62a, a storage circuit 63, a display 64, an input circuit (switch group) 65, and an external interface 66.

  The transmission / reception circuit 61 includes a reception circuit 611 and a transmission circuit 612. The transmission / reception circuit 61 includes an analog-digital converter, an amplifier, a modulator, and a demodulator (not shown).

  The reception circuit 611 receives a reception signal from the communication control device 50. The received signal includes an identification (ID) signal that uniquely identifies each component device 10, 20, 30, 40. The wireless foot switch 60a specifies a device installed in the examination room based on the ID signal. The wireless foot switch 60a specifies a device to be controlled from among a plurality of devices installed in the examination room.

  Hereinafter, a device to be controlled by the wireless foot switch 60a is referred to as a “control target device”. The wireless foot switch 60a may be configured such that only one device is set as a control target device at a certain moment, or may be configured so that two or more devices are set as control target devices at the same time.

  The transmission circuit 612 transmits a control signal of the control target device to the communication control device 50. The control signal includes, for example, a control signal for causing the device to be controlled to execute a predetermined function.

  The storage circuit 63 is a storage medium including an ROM (Read Only Memory) and a RAM (Random Access Memory), as well as an external storage device such as an HDD (Hard Disk Drive) and an optical disk device. The storage circuit 63 stores various programs executed by the processing circuit 62a (including an application system as well as an operating system), data necessary for executing the program, and image data. The storage circuit 63 may store various commands for controlling the operating system. A GUI (Graphical User Interface) program that supports input from the input circuit 65 may be stored.

  The storage circuit 63 stores switch function information. The switch function information is data that defines a correspondence relationship between a plurality of types of functions of each device, switches for operations corresponding to the functions, and pictograms indicating the functions.

  The switch function information may be stored for each user. The switch function information is registered and edited by a switch function information editing function 624 described later. The switch function information will be described in detail later with reference to FIG.

  The display 64 is a display device such as a liquid crystal display panel, a plasma display panel, and an organic EL (Electro Luminescence) panel.

  The input circuit 65 is composed of a plurality of switch groups. The switches constituting the input circuit 65 include, for example, a mechanical switch that can be operated by a user's foot, such as a button switch, a pedal switch, a lever switch, a joystick, or a trackball. The input circuit 65 generates an input signal corresponding to the operation of the mechanical switch by the user and outputs the input signal to the processing circuit 62. When the wireless foot switch 60a includes a plurality of mechanical switches, the input circuit 65 inputs an input signal from the mechanical switch selected by the user to the processing circuit 62a.

  The processing circuit 62a may be configured by dedicated hardware, or may be configured to realize various functions described later by software processing by a built-in processor. Here, as an example, a case where the processing circuit 62a realizes various functions by software processing by a processor will be described.

  Here, the processor means a dedicated or general-purpose CPU (Central Processing Unit), a GPU (Graphics Processing Unit), an application specific integrated circuit (ASIC), a programmable logic device, and a field programmable gate array (FPGA: Field). Programmable Gate Array). Examples of the programmable logic device include a simple programmable logic device (SPLD) and a complex programmable logic device (CPLD). The processing circuit 62a reads out a program stored in the storage circuit 63 or a program directly incorporated in the processor of the processing circuit 62a, and implements each function by executing the program.

  The processing circuit 62a may be configured by a single processor or a combination of a plurality of independent processors. In the latter case, a plurality of storage circuits respectively corresponding to the plurality of processors may be provided, and a program executed by each processor may be stored in a storage circuit corresponding to the processor. As another example, one storage circuit may be configured to collectively store programs corresponding to the functions of a plurality of processors.

  The processing circuit 62a implements a device selection function 621, a switch function information selection function 622a, a control signal generation function 623, and a switch function information editing function 624. The device selection function 621, the switch function information selection function 622a, the control signal generation function 623, and the switch function information editing function 624 are realized by executing a program stored in the storage circuit 63 by the processor of the processing circuit 62a. It is a function.

  The device selection function 621 selects a device to be controlled from all devices existing within a predetermined range around the wireless foot switch 60a. A predetermined range around the device centering on each of the component devices 10, 20, 30, and 40 is preset as determination spaces SP10, SP20, SP30, and SP40. Here, “preliminarily” means before the device to be controlled is specified by the wireless foot switch 60a, and is set at the time of installation adjustment of each component device 10, 20, 30, 40. However, it does not mean that the components 10, 20, 30, and 40 are set at the time of shipment.

  The determination space is a range in which a certain device can be determined as a control target device by the wireless foot switch 60a. The determination space has a radial spread starting from the center of the device, and has a predetermined distance spread toward the outside of the outer edge of the device.

  Here, the “predetermined distance” means the maximum distance between the wireless foot switch 60a and the device to be controlled when the wireless foot switch 60a is used. The predetermined distance is preset in the wireless foot switch 60a. Here, “preliminarily” is the same as described above.

  When the wireless foot switch 60a exists in the determination space of one device, the device selection function 621 selects the one device as a device to be controlled by the wireless foot switch 60a. When the wireless foot switch 60a exists in the determination space of a plurality of devices, as an example here, the device selection function 621 selects a device closest to the wireless foot switch 60a from among the plurality of devices as a control target device. . For example, when the wireless foot switch 60a exists in the determination space SP40 of the bed apparatus 40, the apparatus selection function 621 selects the bed apparatus 40 as a control target apparatus.

  The determination space may be a predetermined range centered on the wireless foot switch 60a. That is, the device selection function 621 may identify a device that exists in the determination space of the wireless foot switch 60a as a control target device.

  The device selection function 621 specifies each component device 10, 20, 30, 40 based on the ID signal included in the received signal from the communication control device 50. The device selection function 621 selects a control target device from among the constituent devices 10, 20, 30, and 40.

  The device selection function 621 acquires the position of each component device 10, 20, 30, 40 installed in the examination room and the position of the wireless foot switch 60a in the examination room using the indoor positioning method, and the wireless foot switch 60a. And the distance between each device. The device selection function 621 determines which device the wireless foot switch 60a is located in based on the calculated distance, and specifies the device to be controlled.

  The selection of the control target device by the device selection function 621 is not limited to the method using the indoor positioning method. The wireless foot switch 60a may store the positions of the constituent devices 10, 20, 30, and 40 in advance. The device selection function 621 may specify the position of the wireless foot switch 60a in the examination room based on the positional relationship between the wireless foot switch 60a and the communication control device 50. The device selection function 621 may determine in which determination space the wireless foot switch 60a exists based on the position of the wireless foot switch 60a in the examination room, and may select a control target device.

  The wireless foot switch 60a may be configured to directly receive the ID signal of each device transmitted from each component device 10, 20, 30, 40. That is, the communication control device 50 is not an essential configuration. When the wireless foot switch 60a receives an ID signal from a plurality of devices, the wireless foot switch 60a may select the device to be controlled based on the signal strength of the ID signal, for example. The signal strength of the ID signal is proportional to the distance between the device transmitting the ID signal and the wireless foot switch 60a. Therefore, the device selection function 621 may calculate the distance from the device transmitting the ID signal from the signal strength of the ID signal, and select the device with the closest calculated distance as the control target device.

  Note that the wireless foot switch 60a may be configured so that the user can arbitrarily select the control target device. For example, the wireless foot switch 60 a may be configured to display a selection screen for a control target device on the display 64 and select the control target device via the input circuit 65.

  The device selection function 621 further identifies a user through user authentication such as a user ID or biometric authentication.

  The switch function information selection function 622a acquires the switch function information of the control target device selected by the device selection function 621 from the storage circuit 63, and displays a pictogram on the display 64 based on the switch function information.

  In addition, when the device selection function 621 specifies a user, the switch function information selection function 622 a acquires the specified user switch function information from the storage circuit 63. The switch function information selection function 622a displays a pictogram on the display 64 based on the specified switch function information of the user. The switch function information can be freely set according to the convenience and preference of the user. For example, the user can freely set the switch order and the type of pictogram indicating each function.

  The control signal generation function 623 generates a control signal for the device to be controlled based on the input signal from the input circuit 65. The operated switch and the content of the operation performed on the switch are input from the input circuit 65 to the control signal generation function 623 as input signals. The control signal generation function 623 specifies a function executed by the operated switch and generates a control signal based on the switch function information.

  The control signal includes the function, the operation content for the switch, and the ID signal of the device to be controlled. The control signal is transmitted to the communication control device 50 via the transmission circuit 612, and is transmitted from the communication control device 50 to the control target device.

  The switch function information editing function 624 registers and edits the switch function information stored in the storage circuit 63. The user can register and edit the switch function information by setting the wireless foot switch 60a to the switch function information editing mode. For example, the wireless foot switch 60a may be changed from the switch mode to the switch function information editing mode by executing a predetermined operation on the switch provided in the input circuit 65.

  Here, the “predetermined operation” is, for example, an operation of simultaneously pressing a plurality of preset switches or pressing a predetermined switch continuously a plurality of times. “Preliminary” here is before the start of editing of the switch function information, may be at the time of shipment of the wireless foot switch 60a, or may be appropriately set by the administrator at the time of installation adjustment or after installation. .

  The switch function information editing function 624 displays a switch function information editing screen on the display 64 in the switch function information editing mode. On the switch function information editing screen, switch functions and pictogram displays can be set for each control target device. That is, on the switch function information editing screen, for a plurality of switches included in the wireless foot switch 60a, it is possible to set a function of a control target device assigned to each switch and a pictogram indicating the function of the control target device. The user presses a switch constituting the input circuit 65 according to the content displayed on the display 64, and registers and edits the switch function information.

  Further, the wireless foot switch 60a may be configured to shift to the switch function information editing mode by connecting the wireless foot switch 60a to an external device such as a personal computer or a tablet terminal. The switch function information editing function 624 displays a switch function information editing screen on the display of the external device, and the user registers and edits the switch function information via the input circuit of the external device.

  The external interface 66 is configured to connect the wireless foot switch 60a to an external device such as a personal computer. The external interface 66 may be configured by a bus standard such as USB (Universal Serial Bus).

  The external interface 66 may have a configuration compliant with a wireless communication standard such as an infrared communication standard or a short-range wireless communication standard. The external interface 66 may be configured to be connectable to an external storage medium such as a thin recording medium in which switch function information is stored. When an external storage device is connected to the wireless foot switch 60a, the switch function information stored in the storage circuit 63 may be overwritten with the switch function information stored in the external storage device. The wireless foot switch 60a may be configured so that the switch function information stored in the device and the switch function information stored in the storage circuit 63 can be selectively used.

  FIG. 3 is a perspective view and a sectional view of the wireless foot switch 60a according to the first embodiment. 3A is a perspective view of the wireless foot switch 60a, and FIG. 3B is a cross-sectional view of the wireless foot switch 60a taken along line IIIb-IIIb.

  As shown in FIG. 3A, the wireless foot switch 60a is configured by a substantially step-like housing having two steps. Of the two step surfaces of the substantially stepped casing, the one having the shorter vertical distance from the bottom surface 76 is referred to as a first step surface 72 and the other is referred to as a second step surface 74. A rising portion from the bottom surface 76 to the first step surface 72 is referred to as a first rising portion 71, and a rising portion from the first step surface 72 to the second step surface 74 is referred to as a second rising portion 73.

  In the following description, the substantially stepped housing has the first step surface 72, the step formed by the first rising portion 71 has the first step, the second step surface 74, A step formed by the second rising portion 73 is referred to as a second step.

  The plurality of switch groups 65a, 65b, 65c, 65d, and 65e constituting the input circuit 65 are supported in the first step. On the other hand, the display 64 is supported in the second step.

  As shown in the IIIb-IIIb sectional view of FIG. 3B, the switch 65 b is supported by the first step surface 72. On the other hand, the display 64 and the protection panel 67 that protects the display 64 are supported in the second step. Thus, the display panel such as the display 64 that displays information indicating the function of the switch to the user is supported in the second step.

  In the case of a button type or pedal type switch, the user operates the switch by stepping a foot placed on the switch toward the bottom surface 76. When the switch and the display are in the same plane, there is a possibility that the display may be damaged when the foot hits the display when the switch is pressed.

  On the other hand, the wireless foot switch 60 a according to the present embodiment includes a protection panel 67. A space 75 is provided between the protection panel 67 and the display 64 so that the display 64 is not damaged at the same time even if the protection panel 67 is damaged. The protection panel 67 is made of a material such as transparent or translucent reinforced plastic or acrylic, and has a strength that does not break even when the user steps on the weight.

  In addition, the wireless foot switch 60 a according to the present embodiment is provided in a first step lower than the second step in which the foot-operated switch group 65 supports the display 64. In this way, the switch group 65 and the display 64 are provided in the respective steps having different heights, so that the user can operate the switch without interference of his / her foot in the second step in which the display 64 is provided. . As described above, the shape of the substantially stepped casing can prevent the display 64 from being simultaneously impacted when the user operates the switch, and can prevent the display 64 from being damaged.

  In addition, when the wireless foot switch 60a according to the present embodiment falls, a gap is formed between the first step surface 72 and the floor surface due to the step between the second step and the first step. Therefore, it is possible to prevent an erroneous operation such that the switch provided in the first step is pressed in contact with the floor surface.

  The shape of the housing of the wireless foot switch 60a is not limited to the substantially stepped shape shown in FIG. For example, FIG. 3 shows an example in which the second step surface 74 is substantially parallel to the bottom surface 76, but the second step surface 74 may be inclined with respect to the bottom surface 76. For example, the second step surface 74 may be configured to be inclined with respect to the bottom surface 76 so that the second rising surface 73 side of the second step surface 74 is low and the other is high. Thus, by providing the second step surface 74 with an angle, the display 64 can be easily seen by the user operating the wireless foot switch 60a.

  Further, in order to make the angle of the second step surface 74 variable with respect to the bottom surface 76, a movable portion is provided on the second rising portion 73, and the user operating the wireless foot switch 60a is adjusted to an angle at which the display 64 can be easily seen It may be configured to be able to.

  In addition to the second step surface 74, the first step surface 72 may also be configured with a predetermined angle with respect to the bottom surface 76. For example, the first step surface 72 may be inclined so that the second rising portion 73 side is high and the other is low. By inclining the first step surface 72, the switch is ergonomically easy to operate for the user operating the wireless foot switch 60a from the first step side. Further, an anti-slip material such as rubber may be provided on the bottom surface 76 so that the wireless foot switch 60a does not slip when the switch is operated.

(2) Operation FIG. 4 is a flowchart showing an example of the operation of the wireless foot switch 60a according to the first embodiment. Here, as an example, in the examination room in which each component 10, 20, 30, 40 is installed, the wireless foot switch 60a is used to image the subject with respect to each component 10, 20, 30, 40. A case where the above operation is performed will be described. The operation for imaging the subject includes setting of imaging conditions such as adjustment of X-ray dosage and execution of X-ray imaging such as X-ray exposure.

  For example, in the case of X-ray imaging in the supine position, three devices, that is, the high voltage generation device 10, the X-ray tube holding device 20, and the bed device 40 can be controlled devices of the wireless foot switch 60a. Among these three devices, for example, a control target device is selected in the order selected by the user, and an operation for imaging the subject is performed on the control target device.

  The operation of the wireless foot switch 60a according to the embodiment will be described below according to the step numbers in the flowchart of FIG.

  In step ST <b> 101, the device selection function 621 selects a control target device from among the constituent devices 10, 20, 30, and 40. Each component device 10, 20, 30, 40 is distinguished based on the ID signal received from the communication control device 50. The device selection function 621 of the wireless foot switch 60a calculates, for example, each distance between the wireless foot switch 60a and each component device 10, 20, 30, 40, and determines which wireless foot switch 60a is based on the calculated distance. It is determined whether the device exists in the determination space of the device, and the control target device is selected.

  The device to be controlled may be automatically selected by the device selection function 621 based on the position where the wireless foot switch 60a is installed, or may be manually selected by the user. In particular, in the case of the non-self-propelled wireless foot switch 60a, the selection function 621 may be configured so that the control target device can be changed by user selection regardless of the distance between the wireless foot switch 60a and the control target device. Accordingly, the user can change the control target device without moving the wireless foot switch 60a.

  In step ST102, the switch function information selection function 622a acquires the switch function information corresponding to the specified control target device from the storage circuit 63. The switch function information selection function 622a displays a pictogram on the display 64 based on the acquired switch function information.

  In step ST103, the input circuit 65 inputs an input signal corresponding to a user operation to the control signal generation function 623. The control signal generation function 623 generates a control signal corresponding to a user operation and outputs the control signal to the transmission circuit 612.

  In step ST104, the transmission circuit 612 transmits a control signal to the control target device via the communication control device 50. The device to be controlled that has received the control signal executes a function corresponding to the control signal.

  In the case of X-ray imaging in the prone position, any one of the high voltage generation device 10, the X-ray tube holding device 20, and the bed device 40 is selected as a device to be controlled by the wireless foot switch 60a (corresponding to step ST101). ) Each time the processes of steps ST102 to ST104 are executed. That is, the wireless foot switch 60a functions as a remote control device for the device selected as the control target device, and a function registered in the switch function information is assigned to each switch. Similarly, the display 64 displays a pictogram registered in the switch function information. As a result, these three devices are operated in sequence, the imaging conditions in the prone position are set, and X-ray imaging is executed. In the case of X-ray imaging in the standing position, the wireless foot switch 60a is the same as the above except that the stand device 30 is not installed in the determination space of the stand device 30 and the stand device 30 is operated.

  The above is the description of the flowchart. Hereinafter, switch function information of the wireless foot switch 60a and display examples of the wireless foot switch 60a will be described with reference to FIGS.

  FIG. 5 is a schematic diagram illustrating switch function information. FIG. 6 is a schematic diagram illustrating a display example of the wireless foot switch 60a according to the first embodiment.

  FIG. 5 exemplifies switch function information when the control target device is the couch device 40. FIG. 6 shows a display example of the display 64 when the switch function information shown in FIG. 5 is selected by the switch function information selection function 622a. 5 and 6 illustrate the display operation of the wireless foot switch 60a when the couch device 40 is a device to be controlled.

  As shown in FIG. 5, the switch function information exists for each control target device. In the first row of the table showing the switch function information in FIG. 5, three information items of a switch, a function, and a pictogram are shown. The switch function information of each control target device defines a correspondence relationship between the function of the control target device assigned to each switch of the wireless foot switch 60a and a pictogram indicating the function.

  5 and 6, the five functions of the bed apparatus 40 including the bed raising, the bed lowering, the top plate horizontal movement, the X-ray imaging, and the X-ray fluoroscopy are the switches 65a, 65b, 65c, 65d of the wireless foot switch 60a. , 65e will be described as an example.

  The second stage of the switch function information in FIG. 5 shows the functions and pictograms of the bed apparatus 40 assigned to the switch 65a of the wireless foot switch 60a. The function assigned to the switch 65a is X-ray imaging, and the pictogram corresponding to X-ray imaging is the pictogram Ga. In the switch function information, a file name, a file path, and the like of the image data of the pictogram Ga are stored as information items indicating the pictogram Ga.

  The function assigned to the switch 65b is a bed rise, and the pictogram corresponding to the bed rise is a pictogram Gb. The function assigned to the switch 65c is the bed lowering, and the pictogram corresponding to the bed lowering is the pictogram Gc. The function assigned to the switch 65d is fluoroscopy, and the pictogram corresponding to fluoroscopy is the pictogram Gd. The function assigned to the switch 65e is the horizontal movement of the top board, and the pictogram corresponding to the horizontal movement of the top board is the pictogram Ge.

  Referring to the top view of the wireless foot switch 60a shown in FIG. 6, a pictogram Ga indicating X-ray imaging is displayed on the switch 65a of the display 64. Similarly, a pictogram Gb indicating the rise of the bed is displayed on the switch 65b. A pictogram Gc indicating the bed descending is displayed on the switch 65c. A pictogram Gd showing X-ray fluoroscopy is displayed on the switch 65d. A pictogram Ge indicating the horizontal movement of the top board is displayed on the switch 65e. As described above, the wireless foot switch 60a displays the pictogram registered in the switch function information of the device to be controlled on the display 64, so that the function assigned to each switch can be recognized.

  Note that X-ray imaging may be controlled by a double action in order to ensure safety. The double action is control in which X-rays are actually emitted by performing two operations, an operation for permitting X-ray imaging and an operation for actually performing X-ray imaging. The double action control is realized by, for example, a two-stage push switch. As described above, the wireless foot switch 60a may be configured so that a function requiring double action control is assigned to a switch capable of realizing the control. That is, the function controlled by the double action may be configured to be assigned to a specific switch even when the control target device or the user is different. The operation of the switch 65d corresponding to the fluoroscopic function may also be set by double action control.

  When the switch 65b is pressed, the top board 41 is raised. The wireless foot switch 60a may be configured so that the top plate 41 rises while the switch 65b is kept pressed. When the switch 65b is pressed, the top plate 41 rises and the top plate 41 is being raised. Alternatively, the wireless foot switch 60a may be configured such that the top plate 41 stops when the switch 65b is pressed again. The operation of the switch 65b when the bed is lowered is the same as that of the switch 65b.

  When the switch 65e is pressed, the top plate 41 is released and the top plate 41 can be manually moved horizontally. Further, the switch 65e may be formed of a direction switch such as a joystick or a cross switch so that the moving direction of the top board 41 is controlled according to the direction in which the switch is operated. For example, the bed apparatus 40 may be configured such that when the joystick is tilted to the right, the top plate moves in the positive direction of the x axis.

  The above is the description of the wireless foot switch 60a according to the first embodiment. As described above, the wireless foot switch 60a according to the first embodiment can control all devices in which the switch function information is registered, and can control a plurality of functions provided by a plurality of devices as 1 This can be realized by operating one wireless foot switch 60a.

  As described above, the wireless foot switch 60a can change the function assigned to the switch in accordance with the control target device, and displays information indicating the function assigned to each switch in accordance with the control target device. It can be used as a controller for the device selected as the target device. Thus, the pictogram displayed on the display 64 is changed according to the control target device. Therefore, even when the function to be controlled is changed and the function assigned to each switch is changed, the user can easily recognize the function assigned to each switch.

  Even if the devices are different, the wireless foot switch 60a can set the same operation and the same pictogram on the same switch for the function as long as the function is the same. That is, even when the devices are different, the mode of the switch can be unified for the same function. Misoperations can be reduced by unifying the switches.

  The wireless foot switch 60a can be used in common for a plurality of apparatuses in the examination room. Therefore, when there are a plurality of devices in the examination room, each device can be operated by the wireless foot switch 60a without searching for the switch of each device or moving to the place where the switch of each device is located. .

  Furthermore, the wireless foot switch 60a can change the switch order and the type of pictogram for each user. That is, even when the functions used for each user in the same apparatus are different, a switch corresponding to the function used by the user can be provided for each user.

  For example, one user often uses the X-ray imaging function, while another user often uses the X-ray fluoroscopy function. In such a case, the user may be able to register a function frequently used by the user in the wireless foot switch 60a so that the function can be assigned to a switch at a position where the user can easily operate. Such settings are stored in the switch function information. Further, the switch function information can be freely edited even after installation adjustment by the switch function information editing function 624. Therefore, it can be freely customized according to the user's needs.

  Further, in the case of the self-propelled wireless foot switch 60a, the user does not have to carry the wireless foot switch 60a in accordance with his / her movement, and the user does not get his hands dirty for carrying and can be used in a sanitary manner. .

  In addition, when the control signal from the wireless foot switch 60a and the control signal from the switch of the control target device are simultaneously input to the control target device, the medical image diagnosis system gives priority to the control signal from the switch of the control target device. 1 may be configured. The control signal to be prioritized may be determined by a modality or a processing circuit incorporated in each device constituting the X-ray device 2a, or determined by a transmission / reception circuit detachably attached to the modality or the X-ray device 2a. May be.

  Further, the medical image diagnostic system 1 may be configured to determine a control signal to be given priority according to the type of switch. For example, the control signal for the emergency stop switch should be prioritized regardless of whether the control signal is input from the device to be controlled or the wireless foot switch 60a. Thus, priority may be set in advance according to the type of switch. Here, “preliminarily” refers to the time before the operation of the control target apparatus is started by the wireless foot switch 60a, such as during installation adjustment of the X-ray apparatus 2a. Moreover, the priority setting may be appropriately set by an administrator after installation.

  The above is the description of the first embodiment. Hereinafter, a modification of the first embodiment will be described with reference to FIG.

  FIG. 7 is a perspective view and a top view of a modified example of the wireless foot switch 60a according to the first embodiment. FIG. 7A is a perspective view of a modified example of the wireless foot switch 60a, and FIG. 7B is a top view of the modified example of the wireless foot switch 60a. The modification of the first embodiment shown in FIG. 7 includes a hook 80 for inserting the distal end portion of the foot to move the wireless foot switch 60a in addition to the configuration of the first embodiment. The hook 80 can also be used as a mechanism for preventing an operation unintended by the user.

  As illustrated in FIG. 7A, the hook 80 is supported by the second step so as to cover the second step surface 74. The hook 80 is fixed at two positions on the opposite side of the second step surface 74 from the second rising portion 73. The hook 80 has a rising portion in the vertical direction as long as the user's foot enters from a portion fixed to the second step surface 74. Further, the tip of the rising portion extends from the portion fixed to the second step surface 74 toward the second rising portion side substantially in parallel with the second step surface 74, and the long axis of the second rising portion 73 A curved portion curved in a direction parallel to the direction; The bending portion has a substantially U-shape so that the user can easily insert the foot.

  In addition, the shape of the hook 80 is not limited to the aspect of Fig.7 (a). Any shape may be used as long as the user can insert the tip of the foot and move the wireless foot switch 60a. For example, the shape of the portion (curved portion) into which the foot of the hook 80 is inserted may be U-shaped or semicircular according to the shape of the instep. Further, the position where the hook 80 is fixed is not limited to the second step surface 74. The hook 80 may be fixed to the left and right of the first step surface 72 so as to cover the input circuit 65.

  As shown in FIG. 7A, when the hook 80 is installed so as to cover the second step surface 74, a part of the display 64 provided on the second step surface 74 is behind the hook 80. May be overlooked. Therefore, the wireless foot switch 60a according to the modification of the first embodiment adjusts the display position so that the hook 80 does not block the pictogram indicating the function of the device to be controlled.

  The adjustment of the display position of the pictogram includes, for example, reduction of the pictogram image in addition to the adjustment of the display position of the pictogram displayed on the display 64. FIG. 7B shows that the pictogram Ga and the pictogram Ge displayed on both ends of the display 64 are reduced, and the display position is aligned with the end of the display 64 so that the hook 80 does not block the pictogram. An example is shown.

  The adjustment of the display position is not limited to the adjustment of the pictogram display position or the reduction of the pictogram image. For example, the wireless foot switch 60a may be configured to divide the display area of the display 64 according to the installation position of the hook 80. Moreover, you may provide the display 64 of the shape according to the installation position and shape of the hook 80. FIG.

[Second Embodiment]
In the first embodiment, the wireless foot switch 60a that includes the display 64 and displays a pictogram indicating a function assigned to each switch on the display 64 according to the control target device has been described. However, the information indicating the function assigned to the input circuit 65 is not limited to the pictogram. Hereinafter, in the second embodiment, a wireless foot switch 60b that indicates a function assigned to the input circuit 65 by lighting a display label and an LED will be described. In addition, about 2nd Embodiment, only a different part from 1st Embodiment is demonstrated, and the overlapping description is abbreviate | omitted.

(1) Configuration FIG. 8 is a functional block diagram illustrating a functional configuration example of the wireless foot switch 60b according to the second embodiment. Unlike the first embodiment, the wireless foot switch 60 b includes an LED 68 instead of the display 64.

  In addition to the function of the switch function information selection function 622a in the first embodiment, the switch function information selection function 622b controls lighting and extinguishing of the LEDs based on the switch function information. In the first embodiment, for example, when there is a switch that is not used by the user, the pictogram is not displayed on the display 64. That is, in the first embodiment, when no function is assigned to a switch, no function or pictogram is registered in the switch function information.

  On the other hand, in the second embodiment, as will be described in detail with reference to FIG. 9, a display label indicating the function assigned to the wireless foot switch 60 a is provided on the second step surface 74. When there is a switch that is not used as in the first embodiment, the user can recognize that the switch has no function assigned by turning off the LED. For this reason, the switch function information according to the second embodiment includes information items indicating whether the LED is turned on or off.

  FIG. 9 is a perspective view and a sectional view of a wireless foot switch 60b according to the second embodiment. FIG. 9A is a perspective view of the wireless foot switch 60b, and FIG. 9B is a cross-sectional view of the wireless foot switch 60b taken along the line IXb-IXb.

  As shown in FIG. 9A, the shape of the housing of the wireless foot switch 60b is a substantially stepped shape as in the first embodiment. The same applies to the point that the input circuit 65 is supported in the first step. On the other hand, in the second embodiment, as shown in the sectional view of FIG. 9B, the configuration of the second step is greatly different from that of the first embodiment.

  The second step includes a protective panel 67, a display label 69, a space 75, and an LED 68 in order from the second step surface 74 side toward the bottom surface 76. In the example of FIG. 9B, an example including three LEDs 68a, 68b, 68c from the left is shown.

  The display label 69 is configured by, for example, paper, a seal, or a vinyl sheet on which characters and pictograms indicating the functions of the control target device are printed. Further, the display label 69 may be configured so that the wireless foot switch 60b is printed at the same time when the switch function information editing function 624 edits the switch function information. Further, for example, by using the display label 69 from which the character portion is cut out, the display label 69 can be illuminated in the form of a character by the LED 68.

  As shown in FIG. 9B, three LEDs 68, such as LEDs 68a, 68b, and 68c, are provided for one switch 65b. In the case of the wireless foot switch 60b having five switches as shown in FIG. 9, since three LEDs are installed in each switch, there are 15 LEDs 68 in total. Similarly, three display labels 69 corresponding to the LEDs 68a, 68b, and 68c are provided for one switch 65b like the display labels 69a, 69b, and 69c.

  Each display label 69a, 69b, 69c provided for one switch 65b indicates a different device function. That is, the wireless foot switch 60b illustrated in FIG. 9 can register up to three devices as control target devices at the same time. For example, when three devices of the bed device 40, the X-ray tube holding device 20, and the stand device 30 are registered in the wireless foot switch 60b, the function of the bed device 40, the function of the X-ray tube holding device 20 is stored in the switch 65b. The function and the function of the stand device 30 are assigned. Therefore, information indicating each function of the bed apparatus 40, the X-ray tube holding apparatus 20, and the stand apparatus 30 is installed on the display labels 69a, 69b, and 69c, respectively.

  Note that the number of devices that can be registered in the wireless foot switch 60b is not limited to three. When four devices are registered as control target devices, four functions are assigned to one switch, and four display labels are installed.

  Light shielding plates 90a and 90b are provided between the display label 69a and the display label 69b and between the display label 69b and the display label 69c, respectively. Although not shown in FIG. 9B, between the display label group indicating the function assigned to the switch 65a and the display label groups 69a, 69b, and 69c assigned to the switch 65b and to the switch 65b. A light shielding plate is also provided between the assigned display label groups 69a, 69b, and 69c and the display label group indicating the function assigned to the switch 65c. Thereby, the display label is configured to shine only when the LED immediately below the display label is turned on.

  As described above, the wireless foot switch 60b according to the second embodiment lights up the display label at the top by turning on the LED 68, and makes it possible to identify the function assigned to the switch 65.

(2) Operation Hereinafter, with reference to FIG. 10 to FIG. 13, an operation indicating the function assigned to the switch by turning on the LED 68 in the wireless foot switch 60b according to the second embodiment will be described.

  10 to 13, as in FIG. 9, a wireless foot switch 60 b that can register three devices, that is, the X-ray tube holding device 20, the stand device 30, and the bed device 40, as control target devices will be described. In this case, on the second step surface 74 of the wireless foot switch 60b, display labels indicating the functions of the three devices of the X-ray tube holding device 20, the stand device 30, and the bed device 40 are provided on the second step surface 74. Is done.

  For example, when the bed apparatus 40 has five functions of raising the bed, lowering the bed, horizontal movement of the couch, X-ray imaging, and X-ray fluoroscopy, a display label on which these functions are printed is placed on the second step surface 74. Is done. Similarly, display labels corresponding to the functions of the X-ray tube holding device 20 and the stand device 30 are also installed on the second step surface 74.

  In the second embodiment, the function assigned to each switch of the wireless foot switch 60b can be identified by illuminating the display label 69 indicating the function of the control target device when the LED 68 is turned on.

  First, with reference to FIG.10 and FIG.11, operation | movement of the wireless foot switch 60b in case a control object apparatus is the bed apparatus 40 is demonstrated.

  FIG. 10 is a schematic diagram for explaining switch function information when the device to be controlled is the couch device 40. FIG. 11 is a top view of the wireless foot switch 60b when the device to be controlled is the couch device 40. FIG.

  For example, the first row of the table shown in the upper row of FIG. 10 shows two information items of display category and device. The display section information item indicates the installation positions of the display labels of the three devices registered in the wireless foot switch 60b. In the case where there are three control target devices that can be registered in the wireless foot switch 60b, for example, there are three display label installation positions, ie, the upper, middle, and lower stages of the second step surface 74.

  The device information item indicates a control target device registered in the wireless foot switch 60b. “Bed device” is assigned to the information item of the device corresponding to “upper stage” of the display category. Similarly, “X-ray tube holding device” is assigned to the information item of the device corresponding to “middle stage” of the display category, and “stand device” is assigned to the information item of the device corresponding to “lower” of the display category. ing. For example, in the wireless foot switch 60b shown in FIG. 11, display labels of the bed device 40, the X-ray tube holding device 20, and the stand device 30 are respectively installed in the respective regions of the upper stage D1, the middle stage D2, and the lower stage D3. .

  The table in the lower part of FIG. 10 shows switch function information indicating a correspondence relationship between the switch and the function of the control target device. When the couch device 40 is a device to be controlled, the switches 65a, 65b, 65c, 65d, and 65e are assigned functions of couch lowering, couch raising, X-ray fluoroscopy, top plate horizontal movement, and X-ray imaging, respectively.

  In the upper part D1 of FIG. 11, display labels corresponding to the functions of bed lowering, bed rising, X-ray fluoroscopy, top plate horizontal movement, and X-ray imaging are installed. By illuminating the display label by turning on the LED 68 under each display label, the user can identify the function assigned to each switch.

  In FIG. 11, the display label 69 in which the LED 68 is lit is indicated by gray scale hatching, and the display label 69 in which the LED 68 is not lit is indicated in white. In FIG. 11, when the switch 65a is pressed, the top board 41 is lowered.

  Even if the types of control target devices are the same, the functions held by the devices may be different. For example, even if the bed apparatus is the same, there are models that have a function of fluoroscopy and models that do not. When a model that does not have a fluoroscopic function is a control target device, the wireless foot switch 60b does not light the LED 68 under the X-ray fluoroscopic display label 69 and identifies that the function is not present. It may be configured to be able to. As described above, the switch function information may be registered in consideration of the function difference depending on the model.

  For example, the switch function information may include an information item for controlling lighting of the LED 68 for each control target device. Thereby, even when the display label 69 is installed, when a device that does not have a function corresponding to the display label 69 is to be controlled, it is possible to identify that the function is not provided by not lighting the LED 68. To do.

  Further, the above control can be used even when the function used by the user is different. That is, the user A uses the X-ray fluoroscopy function, but the user B can set the wireless foot switch 60b to not use the X-ray fluoroscopy function. In this case, when the user A uses the wireless foot switch 60b, the X-ray fluoroscopic display label shines, but when the user B uses the X-ray fluoroscopic display label, the X-ray fluoroscopic display label does not shine. Even if 65c is pressed, the function is not executed. Such settings can be registered in the switch function information for each user.

  The X-ray imaging function assigned to the switch 65e is a function that requires double action control. In this case, the wireless foot switch 60b may be configured to blink the LED light in the first operation and display that the second operation is acceptable.

  Next, the operation of the wireless foot switch 60b when the control target device is changed from the couch device 40 to the X-ray tube holding device 20 will be described with reference to FIGS.

  FIG. 12 is a schematic diagram for explaining switch function information when the device to be controlled is the X-ray tube holding device 20. FIG. 13 is a top view of the wireless foot switch 60b when the device to be controlled is the X-ray tube holding device 20.

  As shown in the upper table of the switch function information in FIG. 12, the information indicating the function of the X-ray tube holding device is shown in the display label group in the middle of the wireless foot switch 60b. Further, as shown in the lower table of FIG. 12, when the X-ray tube holding device 20 is a device to be controlled, the switches 65a, 65b, 65c, 65d, and 65e include a vertical movement unlock, a rotation lock release, and an X-ray. The functions of fluoroscopy, interlocking mode, and X-ray imaging are assigned.

  In the middle stage D2 of FIG. 13, display labels 69 corresponding to the functions of vertical movement unlocking, rotation unlocking, X-ray fluoroscopy, interlocking mode, and X-ray imaging are installed. The user can identify the function assigned to each switch by turning on the LED 68.

  In FIG. 13, as in FIG. 11, the display label 69 in which the LED 68 is lit is indicated by gray scale hatching, and the display label in which the LED 68 is not lit is indicated in white. In FIG. 11, when the switch 65a is pressed, the lock of the vertical movement of the X-ray tube holding device 20 is released, and the X-ray tube holding device 20 can be moved up and down in the vertical direction.

  Note that LEDs of different colors may be installed in the display labels of the upper stage D1, the middle stage D2, and the lower stage D3. In FIG. 13, it is shown that the LED is a different color with hatching different from that in FIG. 11. By using LEDs of different colors, the user can instantly determine the device to be controlled by the wireless foot switch 60b based on the color of the LEDs.

  11 to 13, the wireless foot switch 60b that shines the display label 69 with the LED 68 installed under the display label 69 has been described. However, the installation position of the LED 68 is not limited to under the display label 69. That is, the identification of the display label 69 by the user is not limited to a mode in which the display label 69 is illuminated.

  FIG. 14 is a top view of the wireless foot switch 60b showing a modification of the installation position of the LED 68. FIG. Unlike FIGS. 11 and 13, the LED 68 is installed on the left side of each display label 69 on the second step surface 74. The installation position of the LED 68 is not limited to the left side of the display label 69.

  In the example of FIG. 14, the case where the control target device is the couch device 40 is illustrated as in FIG. 11. Therefore, the LEDs 68 installed in the upper stage D1 where the display label group indicating the function of the bed apparatus is installed are turned on, and the LEDs 68 installed in the display label groups of the middle stage D2 and the lower stage D3 are not lit. In FIG. 14, as in FIG. 11, the lit LED 68 is indicated by gray scale hatching, and the unlit LED 68 is indicated by white outline.

  Thus, also in the wireless foot switch 60b according to the second embodiment, the same effect as in the first embodiment can be obtained. Furthermore, in the wireless foot switch 60b according to the second embodiment, since the function assigned to the switch can be identified by the LED 68, a wireless foot switch 60b that can be produced at low cost and does not require long-term maintenance is provided. it can.

[Third Embodiment]
In the first and second embodiments, the example in which the wireless foot switch 60 functions as a remote control device common to each device when a plurality of devices exist in one examination room has been described. However, the wireless foot switch 60 is not limited to function in one examination room, and may be used in common for a plurality of apparatuses across a plurality of examination rooms.

  FIG. 15 is a schematic diagram of a wireless foot switch 60 that is commonly used by a plurality of modalities. FIG. 15 is a diagram for explaining a case where the wireless foot switch 60 is used as a remote control device having different modalities installed in a plurality of examination rooms.

  FIG. 15 shows an example in which different modalities are installed in the examination room 1, the examination room 2, and the examination room 3, respectively. In the examination room 1, an X-ray CT apparatus 2b is installed. In the examination room 2, an MRI apparatus 2c is installed. In the examination room 3, an X-ray angio apparatus 2d is installed.

  In the examination room 1, the wireless foot switch 60 uses the X-ray CT apparatus 2b as a control target apparatus. Similarly, in the examination room 2, the wireless foot switch 60 uses the MRI apparatus 2c as the control target apparatus, and in the examination room 3, the wireless foot switch 60 sets the X-ray angio apparatus 2d as the control target apparatus.

  Note that the wireless foot switch 60 according to the third embodiment has the same function as the wireless foot switches 60a and 60b according to the first and second embodiments. Hereinafter, a case where the function of the wireless foot switch 60 according to the third embodiment is realized by the function of the first wireless foot switch 60a will be described as an example.

  The device selection function 621a identifies the modality based on the modality ID signal installed in the examination room. The wireless foot switch 60 may receive an ID signal directly from each modality or may receive it via the communication control device 50. The switch function information selection function 622a displays a pictogram corresponding to the function of the modality on the display 64 based on the switch function information of the specified modality.

  As described above, also in the wireless foot switch 60 according to the third embodiment, the same effects as those in the first and second embodiments can be obtained. Further, in the third embodiment, the pictogram display and the switch position can be shared for functions common to the modalities such as the operation of the top board 41.

  According to the wireless foot switch and the medical image diagnosis system of at least one embodiment described above, the setting of the switch can be optimized.

  Note that the correspondence between the terms in the claims and the embodiments is, for example, as follows.

  The receiving circuit 611 is an example of a receiving unit described in the claims. The transmission circuit 612 is an example of a transmission unit described in claims. The device selection functions 621a and 621b are examples of the device selection unit described in the claims. The switch function information selection functions 622a and 622b are examples of the switch function information selection unit described in the claims. The display 64 is an example of a display unit described in claims. The input circuit 65 is an example of an input unit recited in the claims. The storage circuit 63 is an example of a storage unit described in the claims.

  Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. These embodiments and their modifications are included in the scope and gist of the invention, and are also included in the invention described in the claims and the equivalents thereof.

DESCRIPTION OF SYMBOLS 1 ... Medical diagnostic imaging system 2 ... Modality 60a, 60b ... Wireless foot switch

Claims (12)

A foot-operated wireless foot switch that is commonly used for a plurality of control target devices,
A display unit that displays information indicating a plurality of functions of the control target device according to the control target device;
An input unit including a plurality of switches for receiving operations corresponding to a plurality of functions of the control target device;
A transmitter that generates a control signal corresponding to the operated switch among the plurality of switches, and transmits a radio signal to the device to be controlled;
Wireless foot switch with A storage unit for storing switch function information in which the plurality of switches and information indicating the plurality of functions are associated with each other;
A switch function information selection unit that selects the switch function information based on the selected control target device;
Further comprising
The display unit displays information indicating functions respectively assigned to the plurality of switches based on the selected switch function information;
The input unit assigns a function corresponding to the plurality of switches based on the selected switch function information,
The wireless foot switch according to claim 1. The display unit includes a display panel,
The plurality of switches and the display panel are supported by a substantially stepped casing having at least two steps having different heights from the bottom surface of the wireless foot switch,
The plurality of switches and the display panel are supported by steps having different heights of the housing, respectively.
The wireless foot switch according to claim 1 or 2. Of the two steps, a step having a long distance from the bottom surface is a first step, and a step having a short distance from the bottom surface is a second step.
The display panel is supported by the first step,
The plurality of switches are supported in the second step.
The wireless foot switch according to claim 3. The display unit further includes a protection panel for protecting the display panel,
The protective panel is supported on the upper surface of the display panel with a predetermined space between the display panel and the display panel.
The wireless foot switch according to claim 3 or 4. The first step further supports a hook for inserting the tip of the user's foot to move the wireless foot switch;
The display unit adjusts a display position of the information indicating the plurality of functions to a position where the information indicating the plurality of functions is not blocked by the hook;
The wireless foot switch according to claim 4 or 5. The information indicating the plurality of functions is at least one of characters, symbols, illustrations, pictograms, and photographs.
The wireless foot switch according to any one of claims 1 to 6. The storage unit further stores switch function information that can be individually set for each user who operates the wireless foot switch,
The switch function information selection unit selects the switch function information that can be individually set for each user.
The wireless foot switch according to any one of claims 2 to 7. When the plurality of control target devices are modalities, the plurality of control target devices include an X-ray CT device, an MRI device, an X-ray angio device, an X-ray device, a nuclear medicine diagnostic device, a radiotherapy device, and a mammography device. The
The wireless foot switch according to any one of claims 1 to 8. The plurality of control target devices include an X-ray tube holding device, a diaphragm control device, a high voltage generation device, a bed device, and a stand device.
The wireless foot switch according to any one of claims 1 to 8. A receiving unit that receives a radio signal from a control target device selected from among the plurality of control target devices;
The wireless foot switch according to any one of claims 1 to 9, further comprising: A medical diagnostic imaging system including a wireless foot switch for remotely operating a plurality of control target devices including an X-ray tube holding device, a diaphragm control device, a high voltage generation device, and a bed device,
The wireless foot switch is
A display unit that displays information indicating a plurality of functions of the control target device according to the control target device;
An input unit including a plurality of switches for receiving operations corresponding to a plurality of functions of the control target device;
A transmitter that generates a control signal corresponding to the operated switch among the plurality of switches, and transmits a radio signal to the device to be controlled;
A medical diagnostic imaging system comprising:

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