X-ray irradiation instruction device and X-ray diagnostic device

Abstract

To enable X-ray irradiation instructions to be easily issued with fingers by a device that does not have to be gripped by an operator.SOLUTION: An X-ray irradiation instruction device capable of being attached to a hand according to an embodiment comprises an irradiation instruction switch for issuing X-ray irradiation instructions. In the state of being attached to the hand, the X-ray irradiation instruction device is constituted so that the irradiation instruction switch can be operated with at least any one of a middle finger, a ring finger and a little finger of the hand.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The embodiments disclosed in the present specification and drawings relate to an X-ray irradiation instruction device and an X-ray diagnostic device. [Background technology]

[0002] X-ray diagnostic equipment transmits X-rays through the body of a patient and creates an image of the transmitted X-rays. There are two imaging methods for obtaining X-ray images: a "fluoroscopy mode" that irradiates relatively weak X-rays, and an "imaging mode" that irradiates relatively strong X-rays. An operator, such as a technician performing interventional therapy using a catheter, inserts the catheter into the patient while checking the catheter inside the blood vessels with X-ray irradiation in either imaging mode or fluoroscopy mode. After the catheter reaches the affected area, X-rays are used to image the affected area from all angles. The identified affected area is then treated using the catheter.

[0003] A foot switch is provided on the bed device of the X-ray diagnostic apparatus to instruct the start and end of X-ray irradiation. Alternatively, a switch is provided on the handheld interface device of the X-ray diagnostic apparatus to instruct the start and end of X-ray irradiation. The handheld interface device is held by the operator and allows the operator to give commands. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2011-245274 Summary of the Invention [Problem to be solved by the invention]

[0005] One of the problems to be solved by the embodiments disclosed in this specification and the drawings is to enable an operator to easily issue an instruction to irradiate X-rays with the fingers of a hand using a device that does not need to be held by the operator. However, the problems solved by the embodiments disclosed in this specification etc. are not limited to the above problem. Problems corresponding to the effects of each configuration shown in the embodiments described below can also be positioned as other problems to be solved by the embodiments disclosed in this specification etc. [Means for solving the problem]

[0006] An X-ray irradiation instruction device wearable on a hand according to an embodiment includes an irradiation instruction switch for issuing an instruction to irradiate X-rays. The X-ray irradiation instruction device is configured so that, when worn on the hand, the irradiation instruction switch can be operated with at least one of the middle finger, ring finger, and little finger. [Brief explanation of the drawings]

[0007] [Figure 1] FIG. 1 is a schematic diagram showing the configuration of an angiography apparatus equipped with an X-ray irradiation instruction device according to a first embodiment. [Figure 2] FIG. 2 is a diagram showing a state during a procedure using an angiography apparatus equipped with the X-ray irradiation instruction device according to the first embodiment. [Figure 3] FIG. 3 is a diagram showing the external configuration of the X-ray irradiation instruction device according to the first embodiment. [Figure 4] FIG. 4 is a front view for explaining a method of operating the X-ray irradiation instruction device according to the first embodiment, which is worn on a hand. [Figure 5] FIG. 5 is a side perspective view for explaining a method of operating the X-ray irradiation instruction device according to the first embodiment, which is worn on a hand. [Figure 6] FIG. 6 is a front view illustrating a method of operating a first modified example of the X-ray irradiation instruction device according to the first embodiment, which is worn on a hand. [Figure 7] FIG. 7 is a schematic diagram showing the configuration of an angiography apparatus 1 equipped with a third modified example of the X-ray irradiation instruction device according to the first embodiment. [Figure 8]FIG. 8 is a schematic diagram showing the configuration of an angiography apparatus equipped with an X-ray irradiation instruction device according to a second embodiment. [Figure 9] FIG. 9 is a diagram showing the external configuration of an X-ray irradiation instruction device according to the second embodiment. [Figure 10] FIG. 10 is a side perspective view illustrating a method of operating the X-ray irradiation instruction device according to the second embodiment, which is worn on a hand. [Figure 11] FIG. 11 is a diagram showing the external configuration of a modified example of the X-ray irradiation instruction device according to the second embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0008] Hereinafter, embodiments of an X-ray irradiation instruction device and an X-ray diagnostic device will be described in detail with reference to the drawings.

[0009] The X-ray irradiation instruction device according to the embodiment is provided as part of an X-ray diagnostic apparatus that generates X-rays and detects and images the X-rays. Examples of X-ray diagnostic apparatuses include, but are not limited to, X-ray imaging apparatuses (X-ray apparatuses), X-ray TV apparatuses, breast X-ray imaging apparatuses (mammography apparatuses), and X-ray circulatory apparatuses (angio apparatuses). The following describes, as an example, a case in which the X-ray irradiation instruction device is provided as part of an angio apparatus as an X-ray diagnostic apparatus, but the present invention is not limited to this case. An angio apparatus is used when performing interventional therapy using a catheter, for example.

[0010] (First embodiment) Fig. 1 is a schematic diagram showing the configuration of an angiography apparatus equipped with an X-ray irradiation instruction device according to the first embodiment, and Fig. 2 is a diagram showing a state during a procedure using an angiography apparatus equipped with the X-ray irradiation instruction device according to the first embodiment.

[0011] 1 and 2 show an angiography apparatus 1 equipped with an X-ray irradiation instruction device according to the first embodiment. The angiography apparatus 1 includes an X-ray irradiation instruction device 10 and an image generation device 20.

[0012] The X-ray irradiation instruction device 10 can be worn on the hand of an operator, and includes a finger support section 11 and an instruction device main body 12. The finger support section 11 is inserted into the finger of an operator D, such as a technician or assistant performing interventional treatment using a catheter, so that the instruction device main body 12 can be worn on the hand. This allows the instruction device main body 12 to be kept in the hand of the operator D. The instruction device main body 12 includes an irradiation instruction switch 121, a transmission circuit 122, and a power supply unit 123.

[0013] The irradiation instruction switch 121 is configured so that it can be operated by at least one of the middle finger, ring finger, and little finger of the operator D when the instruction device main body 12 is worn on the hand of the operator D. The irradiation instruction switch 121 is used to instruct the X-ray irradiation device 22, which will be described later, to irradiate X-rays by pressing a button. The irradiation instruction switch 121 may be a tactile switch, and there is no limitation on the type of switch. For example, the irradiation instruction switch 121 may be a lever-type switch.

[0014] The transmitting circuit 122 is a device that wirelessly transmits a signal to the receiving circuit 26 (described later), for example, a remote controller that uses infrared rays. In this case, the receiving circuit 26 of the image generating device 20 functions as a receiving unit that receives the signal output wirelessly. By using the remote control-type irradiation instruction switch 121 and providing a simple configuration, it is possible to issue an instruction to irradiate X-rays without the hassle of cables. Note that the wireless communication is not limited to IrDA communication using infrared rays, and a wireless LAN standard, Bluetooth (registered trademark), or a custom interface that adds unique communication rules to these may also be used.

[0015] The power supply device 123 includes a battery and a power supply circuit. For example, the battery may be a non-rechargeable primary battery or a rechargeable secondary battery (storage battery). The power supply device 123 supplies power to the components of the indicator main body 12 to operate them wirelessly.

[0016] Preferably, the indicator body 12 is waterproofed. For example, the housing of the indicator body 12 is made of an impermeable material (e.g., plastic), and a structure (e.g., packing) that ensures waterproofing is placed at the joints between the components that make up the indicator body 12. Alternatively, the entire housing of the indicator body 12 may be wrapped in an impermeable, transparent material (e.g., rubber). Such a configuration of the indicator body 12 can prevent blood and other substances from penetrating into the indicator body 12.

[0017] 3(A) to 3(C) are diagrams showing the external configuration of the X-ray irradiation instruction device 10. Fig. 3(A) shows a front view of the X-ray irradiation instruction device 10, and Figs. 3(B) and 3(C) show side views of the X-ray irradiation instruction device 10.

[0018] As shown in FIG. 3(A), the finger support section 11 of the X-ray irradiation instruction device 10 is connected to the instruction device main body 12. The finger support section 11 is formed so that at least one of the middle finger, ring finger, and little finger can be inserted into it. The finger support section 11 is typically formed in a continuous ring shape (e.g., O-shape). However, this is not limited to this case. For example, the finger support section 11 may be formed in a C-shape with an opening at a position facing the connection section with the instruction device main body 12. Furthermore, an irradiation instruction switch 121 (e.g., a fluoroscopy SW) is provided at a position that can be pressed by one of the middle finger, ring finger, and little finger when the finger support section 11 is inserted on the finger.

[0019] As shown in FIG. 3(B), the finger support unit 11 and the pointing device main body 12 are connected so that the surface of the finger support unit 11 and the surface of the housing of the pointing device main body 12 are fixed on the same plane. Alternatively, as shown in FIG. 3(C), the finger support unit 11 and the pointing device main body 12 are connected so that the surface of the finger support unit 11 and the surface of the housing of the pointing device main body 12 are fixed at a certain angle. Alternatively, although not shown, the finger support unit 11 and the pointing device main body 12 are connected so that the angle between the surface of the finger support unit 11 and the surface of the housing of the pointing device main body 12 is variable. In this case, for example, a member (e.g., a hinge) is provided between the finger support unit 11 and the pointing device main body 12, and the finger support unit 11 and the pointing device main body 12 are connected so that they can rotate around the axis of the member.

[0020] Furthermore, the X-ray irradiation instruction device 10 may be configured so that the finger support part 11 is detachable from the instruction device main body 12. In this case, an appropriate finger support part 11 that matches the size and shape of the finger to be inserted by the operator D can be selected from a plurality of finger support parts of different sizes and shapes, and the selected finger support part can be attached to the instruction device main body 12.

[0021] 1 and 2, the image generating device 20 includes a high-voltage supply device 21, an X-ray irradiator 22, an X-ray detector 23, a processing circuit 24, a memory circuit 25, a receiving circuit 26, an input interface 27, a display 28, a C-arm 29 (shown only in FIG. 2), and a bed 30 (shown only in FIG. 2). The image generating device 20 can generate X-ray image data relating to an imaging region of a subject, for example, a patient P, in response to an instruction from the X-ray irradiation instruction device 10, and display the data to the operator D.

[0022] The high voltage supply device 21 supplies high voltage power to the X-ray tube of the X-ray irradiation device 22 under the control of the processing circuit 24 .

[0023] The X-ray irradiator 22 is provided at one end of the C-arm 29. The X-ray irradiator 22 includes an X-ray tube (X-ray source) and a variable diaphragm device. Under the control of the processing circuit 24, the X-ray tube receives high-voltage power from the high-voltage supply device 21 and generates X-rays according to the conditions of the high-voltage power. Under the control of the processing circuit 24, the variable diaphragm device movably supports diaphragm blades made of an X-ray blocking material at the X-ray irradiation port of the X-ray tube. A radiation quality adjustment filter (not shown) for adjusting the radiation quality of the X-rays generated by the X-ray tube may be provided on the front surface of the X-ray tube.

[0024] The X-ray detection device 23 is provided at the other end of the C-arm 29 so as to face the X-ray irradiation device 22. The X-ray detection device 23 can move along the SID (Source-Image Distance) direction, i.e., move back and forth, under the control of the processing circuitry 24. Furthermore, the X-ray detection device 23 can move along a rotational direction centered on the SID direction, i.e., perform a rotational movement, under the control of the processing circuitry 24.

[0025] The processing circuit 24 is configured by a processor such as a dedicated or general-purpose CPU (Central Processing Unit), MPU (Micro Processor Unit), or GPU (Graphics Processing Unit), as well as an ASIC, a programmable logic device, etc. Examples of the programmable logic device include a simple programmable logic device (SPLD), a complex programmable logic device (CPLD), and a field programmable gate array (FPGA).

[0026] Furthermore, the processing circuitry 24 may be configured as a single circuit, or may be configured as a combination of multiple independent circuit elements. In the latter case, the memory circuitry 25 may be provided individually for each circuit element, or a single memory circuitry 25 may store programs corresponding to the functions of multiple circuit elements. The processing circuitry 24 is an example of a processing unit.

[0027] The memory circuitry 25 is configured with semiconductor memory elements such as RAM (Random Access Memory) and flash memory, a hard disk, an optical disk, etc. The memory circuitry 25 may also be configured with portable media such as USB (Universal Serial Bus) memory and DVD (Digital Video Disk). The memory circuitry 25 stores various processing programs (including application programs and an OS (Operating System)) used in the processing circuitry 24 and data required for executing the programs. The OS may also include a GUI (Graphical User Interface) that makes extensive use of graphics to display information to the operator D on the display 28 and allows basic operations to be performed via the input interface 27. The memory circuitry 25 is an example of a storage unit.

[0028] The receiving circuit 26 is a device that receives signals wirelessly, for example, a device that receives infrared rays. Note that the wireless communication is not limited to IrDA communication using infrared rays, but may also be based on the wireless LAN standard, Bluetooth (registered trademark), or a custom interface that adds its own communication rules to these. Note that the receiving circuit 26 is an example of a receiving unit.

[0029] The input interface 27 includes an input device that can be operated by the operator D and an input circuit that inputs a signal from the input device. The input device can be realized by a trackball, a switch, a mouse, a keyboard, a touchpad that performs input operations by touching the operation surface, a touchscreen that combines the display screen and touchpad, a non-contact input device that uses an optical sensor, a voice input device, etc. When the input device is operated by the operator D, the input circuit generates a signal according to the operation and outputs it to the processing circuit 24. The input interface 27 is an example of an input unit.

[0030] The display 28 is configured by a general display output device such as a liquid crystal display or an OLED (Organic Light Emitting Diode) display. The display 28 displays various information under the control of the processing circuit 24. The display 28 is an example of a display unit.

[0031] The C-arm 29 supports the X-ray irradiator 22 and the X-ray detector 23 so that they are disposed opposite to each other. The C-arm 29 can rotate in an arc direction, i.e., rotate in a CRA (Cranial View) direction and a CAU (Caudal View) direction, under the control of the processing circuitry 24 or in accordance with manual operation. The C-arm 29 can also rotate about a fulcrum, i.e., rotate in an LAO (Left Anterior Oblique View) direction and an RAO (Right Anterior Oblique View) direction, under the control of the processing circuitry 24 or in accordance with manual operation. Note that the C-arm 29 may be configured such that its rotation in the arc direction corresponds to the LAO rotation and the RAO rotation, and its rotation about its fulcrum corresponds to the CRA rotation and the CAU rotation.

[0032] 2, the C-arm structure of the image generating device 20 is shown as an under-table structure in which the X-ray irradiator 22 is located below the top board of the bed 30. However, this is not limiting, and the X-ray irradiator 22 may be an over-table structure in which it is located above the top board. The C-arm 29 may be replaced by an Ω-arm, or may be combined with an Ω-arm.

[0033] The bed 30 has a tabletop on which the patient P can be placed. The tabletop can move along the X-axis direction, i.e., slide left and right, under the control of the processing circuitry 24. The tabletop can move along the Y-axis direction, i.e., slide up and down, under the control of the processing circuitry 24. The tabletop can move along the Z-axis direction, i.e., slide head-to-foot, under the control of the processing circuitry 24. The tabletop can also roll and tilt under the control of the processing circuitry 24.

[0034] 4(A) and (B) are front views for explaining how to operate the X-ray irradiation instruction device 10 worn on the hand, and Fig. 5 is a side perspective view for explaining how to operate the X-ray irradiation instruction device 10 worn on the hand.

[0035] As shown in FIGS. 4(A), (B), and 5, the finger support unit 11 of the X-ray irradiation instruction device 10 is inserted into one of the middle finger, ring finger, and little finger (between the second joint (PIP joint) and the third joint (MP joint) of the ring finger in FIG. 4), whereby the instruction device main body 12 is worn on the hand of the operator D. The instruction device main body 12 is configured such that, with the finger support unit 11 inserted into a finger (e.g., ring finger), an irradiation instruction switch 121 (e.g., a "fluoroscopy SW") is located within the movable range of the pad of the middle finger, ring finger, or little finger when the finger is bent. Specifically, the instruction device main body 12 has a size and shape that fits within the palm of the hand with the finger support unit 11 inserted into the finger. More preferably, the palm area is the area located near the bases of the middle finger, ring finger, and little finger.

[0036] In this way, the indicating device main body 12 has a size and shape that fits within the range of the base of the four fingers when the finger support section 11 is inserted on the finger, so that the operator D can freely use all five fingers when the finger support section 11 is inserted. Therefore, the operator D can perform operations such as manipulating the catheter C with his thumb and index finger, while issuing an instruction to irradiate X-rays (i.e., pressing the button of the irradiation instruction switch 121) with his other fingers.

[0037] When the button of the irradiation instruction switch 121 is pressed (shown in FIG. 4(B)) from the state shown in FIG. 4(A) in which the catheter C is operated with the thumb and index finger, a signal indicating the start of X-ray irradiation (irradiation start signal) is generated, and the irradiation start signal is sent to the processing circuit 24 of the image generation device 20 via the transmission circuit 122. X-ray irradiation from the X-ray irradiator 22 is started under the control of the processing circuit 24, and X-ray irradiation is continued. When the button of the irradiation instruction switch 121 is released (shown in FIG. 4(A)), a signal indicating the end of X-ray irradiation (irradiation end signal) is generated, and the irradiation end signal is sent to the processing circuit 24 of the image generation device 20 via the transmission circuit 122. Then, X-ray irradiation from the X-ray irradiator 22 is ended under the control of the processing circuit 24.

[0038] Alternatively, when the button of the irradiation instruction switch 121 is pressed (shown in FIG. 4(B)) and released (shown in FIG. 4(A)) from the state shown in FIG. 4(A) in which the catheter C is operated with the thumb and index finger, an irradiation start signal is generated and sent to the processing circuit 24 of the image generating device 20 via the transmission circuit 122. X-ray irradiation from the X-ray irradiator 22 is started and continued under the control of the processing circuit 24. When the button of the irradiation instruction switch 121 is pressed again (shown in FIG. 4(B)) and released (shown in FIG. 4(A)) from the state shown in FIG. 4(A), an irradiation end signal is generated and sent to the processing circuit 24 of the image generating device 20 via the transmission circuit 122. Then, X-ray irradiation from the X-ray irradiator 22 is ended under the control of the processing circuit 24. In this case, X-ray irradiation can be performed without continuously pressing the button of the irradiation instruction switch 121, which has the advantage of reducing the strain on the fingers of the operator D when X-ray irradiation is continued for a long period of time. The irradiation instruction switch 121 may be configured so that an irradiation start signal is generated by pressing the button once (single action), or may be configured so that an irradiation start signal is generated by pressing the button twice (double action). In the latter case, by setting a predetermined threshold for the generation of a detection signal, it is possible to prevent the generation of an irradiation instruction signal due to unintentional pressing.

[0039] Here, the instruction to irradiate X-rays can be given in any one of a plurality of imaging methods (modes) executable by the image generating device 20. Examples of modes include a fluoroscopy mode, an imaging mode, a fluoroscopy acquisition mode, and a one-shot mode. Here, the fluoroscopy mode refers to an imaging method in which, without the purpose of storing image data, relatively weak X-rays are irradiated to acquire image data as a moving image and display it on the display 28. The imaging mode refers to an imaging method in which, with the purpose of storing image data, relatively strong X-rays are irradiated to acquire image data as a moving image and store it in the memory circuitry 25. The fluoroscopy acquisition mode refers to an imaging method in which, with the purpose of storing image data, relatively weak X-rays are irradiated to acquire image data as a moving image and store it in the memory circuitry 25. The one-shot mode refers to an imaging method in which, with the purpose of storing image data, relatively strong X-rays are irradiated to acquire image data as a moving image and store it in the memory circuitry 25.

[0040] Since the image generating device 20 can irradiate X-rays using various imaging methods, it is possible to issue an instruction to irradiate X-rays according to each mode by assigning one of a plurality of modes to the irradiation instruction switch 121. For example, when the fluoroscopy mode is assigned to the irradiation instruction switch 121, pressing the button of the irradiation instruction switch 121 generates an irradiation start signal and fluoroscopy X-rays are irradiated, or pressing and releasing the button of the irradiation instruction switch 121 generates an irradiation start signal and fluoroscopy X-rays are irradiated. Also, for example, when the one-shot mode is assigned to the irradiation instruction switch 121, pressing the button of the irradiation instruction switch 121 generates an irradiation start signal and one-shot X-rays are irradiated, or pressing and releasing the button of the irradiation instruction switch 121 generates an irradiation start signal and one-shot X-rays are irradiated.

[0041] According to the X-ray irradiation instruction device 10, the instruction device main body 12 is attached to the hand by the finger support part 11, and therefore the instruction device main body 12 does not need to be gripped by the operator D, allowing the operator D to easily issue an instruction to irradiate X-rays with the fingers of the hand. Furthermore, compared to a configuration equipped with a foot switch for issuing an instruction to irradiate X-rays, the X-ray irradiation instruction device 10 eliminates the need for the operator D to look at his or her feet, thereby reducing stress on the operator D.

[0042] (First Modification) In the above description, the irradiation instruction switch 121 of the X-ray irradiation instruction device 10 has been described as having one switch element, but the present invention is not limited to this. The irradiation instruction switch 121 may have multiple switch elements arranged in parallel. The irradiation instruction switch 121 includes multiple switch elements corresponding to multiple imaging methods, and each of the multiple switch elements generates a signal indicating the start of X-ray irradiation (irradiation start signal) and a signal indicating the end of irradiation (irradiation end signal) corresponding to the multiple imaging methods.

[0043] 6(A) and (B) are front views for explaining a method of operating a first modified example of the hand-worn X-ray irradiation instruction device 10. Fig. 6(A) shows a state in which the button of the irradiation instruction switch 121 is not pressed, and Fig. 6(B) shows a state in which the button of the irradiation instruction switch 121 is pressed.

[0044] As shown in FIGS. 6A and 6B, the irradiation instruction switch 121 has three switch elements. One of the three switch elements is assigned to a fluoroscopy mode, one is assigned to an imaging mode, and one is assigned to a fluoroscopy acquisition mode. For example, when an operator D issues an instruction to irradiate X-rays in the fluoroscopy mode, he / she bends his / her middle finger and presses the button of the switch element to which the fluoroscopy mode is assigned. For example, when an operator D issues an instruction to irradiate X-rays in the imaging mode, he / she bends his / her ring finger and presses the button of the switch element to which the imaging mode is assigned. For example, when an operator D issues an instruction to irradiate X-rays in the fluoroscopy acquisition mode, he / she bends his / her little finger and presses the button of the switch element to which the fluoroscopy acquisition mode is assigned. The number of switch elements included in the irradiation instruction switch 121 is not limited to three, and may be two, four, or more.

[0045] When the irradiation instruction switch 121 includes a plurality of switch elements, the irradiation instruction switch 121 may include a switch element that generates an irradiation start signal and an irradiation end signal corresponding to the mode, and a switch element that switches the function of the switch element. For example, when the irradiation instruction switch 121 includes a first switch element that generates an irradiation start signal and an irradiation end signal, and a second switch element that switches the function of the first switch element, pressing and releasing the second switch element cyclically switches the function of the first switch element in the following order: fluoroscopy mode, imaging mode, fluoroscopy acquisition mode, and one-shot mode.

[0046] According to the first modified example of the X-ray irradiation instruction device 10, the instruction device main body 12 is attached to the hand by the finger support part 11, and therefore the instruction device main body 12 does not need to be gripped by the operator D, and can be used to easily issue X-ray irradiation instructions across a plurality of modes with the fingers of the hand. Furthermore, according to the first modified example of the X-ray irradiation instruction device 10, similar to the effect described above, compared to a configuration including a foot switch for issuing X-ray irradiation instructions, the operator D does not need to look at his or her feet, and stress on the operator can be reduced.

[0047] (Second Modification) In the above description, the case where the irradiation instruction switch 121 (or each switch element of the irradiation instruction switch 121) of the X-ray irradiation instruction device 10 is a single-stage switch has been described as an example, but the present invention is not limited to this. The irradiation instruction switch 121 may be a multi-stage switch that can detect the pressing depth in multiple stages.

[0048] The irradiation instruction switch 121 may be a multi-stage switch, allowing X-ray irradiation instructions to be issued across multiple modes. For example, the irradiation instruction switch 121 may be a two-stage switch (e.g., a switch for both fluoroscopy and radiography) as a multi-stage switch. In this case, when the button of the irradiation instruction switch 121 is half-depressed from the state shown in FIG. 4(A) in which the catheter C is operated with the thumb and index finger, an irradiation instruction signal for fluoroscopy is generated, and the irradiation instruction signal for fluoroscopy is sent to the processing circuitry 24 of the image generation device 20 via the transmission circuitry 122. Under the control of the processing circuitry 24, X-ray irradiation for fluoroscopy from the X-ray irradiator 22 is started, and X-ray irradiation for fluoroscopy is continued. When the button of the irradiation instruction switch 121 is released from the depression, an irradiation end signal for fluoroscopy is generated, and the irradiation end signal for fluoroscopy is sent to the processing circuitry 20 of the image generation device 20 via the transmission circuitry 122. Then, X-ray irradiation for fluoroscopy from the X-ray irradiator 22 is stopped under the control of the processing circuitry 24.

[0049] On the other hand, when the button of the irradiation instruction switch 121 is pressed fully from the state shown in FIG. 4(A) in which the catheter C is operated with the thumb and index finger, an irradiation start signal for imaging is generated, and an irradiation instruction signal for imaging is sent to the processing circuit 24 of the image generation device 20 via the transmission circuit 122. Under the control of the processing circuit 24, X-ray irradiation for imaging from the X-ray irradiator 22 is started, and X-ray irradiation for imaging is continued. When the button of the irradiation instruction switch 121 is released from the depression, an irradiation end signal for imaging is generated, and an irradiation end signal for imaging is sent to the processing circuit 24 of the image generation device 20 via the transmission circuit 122. Then, X-ray irradiation for imaging from the X-ray irradiator 22 is ended under the control of the processing circuit 24.

[0050] In this way, by employing a multi-stage switch as the irradiation instruction switch 121, the irradiation instruction switch 121 can issue instructions for X-ray irradiation across a plurality of modes. Furthermore, the multi-stage switch also allows the operator D to freely customize the allocation of modes to each stage (each pressing depth) of the multi-stage switch.

[0051] The technical idea of ​​the second modified example of the X-ray irradiation instruction device 10 can also be applied to the technical idea of ​​the first modified example described above. Specifically, the irradiation instruction switch 121 of the X-ray irradiation instruction device 10 includes a plurality of switch elements, all or some of which may be multi-stage switches.

[0052] According to the second modified example of the X-ray irradiation instruction device 10, the instruction device main body 12 is attached to the hand by the finger support part 11, and therefore the instruction device main body 12 does not need to be gripped by the operator D, and can be used to easily issue X-ray irradiation instructions across a plurality of modes with the fingers of the hand. Furthermore, according to the second modified example of the X-ray irradiation instruction device 10, similar to the effect described above, compared to a configuration including a foot switch for issuing X-ray irradiation instructions, the operator D does not need to look at his or her feet, and stress on the operator can be reduced.

[0053] (Third Modification) In the above description, the irradiation instruction switch 121 (or each switch element of the irradiation instruction switch 121, or each stage of a multi-stage switch) is assigned the function of switching another switch, but this is not limited to this. For example, the X-ray irradiation instruction device 10 may be configured to switch the mode assignment to the irradiation instruction switch 121, that is, to switch the function of the irradiation instruction switch 121, without using a switch operation.

[0054] FIG. 7 is a schematic diagram showing the configuration of an angiography apparatus 1 equipped with a third modified example of the X-ray irradiation instruction device 10. As shown in FIG.

[0055] The instruction device main body 12 includes an irradiation instruction switch 121, a transmission circuit 122, a power supply device 123, and a vibration sensor 124. In Fig. 7, the same members as those in the angiography device 1 shown in Fig. 1 are designated by the same reference numerals and their description will be omitted.

[0056] The vibration sensor 124 detects vibrations (translational movement in three orthogonal axes) of the X-ray irradiation instruction device 10 in three-dimensional space. Examples of the vibration sensor 124 include a three-axis acceleration sensor in three-dimensional space (e.g., a three-axis acceleration sensor), a gyro sensor that detects three-axis angular velocity in three-dimensional space, and a magnetic sensor that detects three-axis geomagnetism in three-dimensional space (e.g., a three-axis geomagnetic sensor). The vibration sensor 124 may also be a so-called nine-axis sensor. When a mode switching operation is performed by, for example, shaking the X-ray irradiation instruction device 10, the vibration sensor 124 generates a detection signal and sends it to the processing circuitry 24 via the transmission circuitry 122 if the vibration of the X-ray irradiation instruction device 10, for example, the magnitude of acceleration, exceeds a predetermined threshold. When the processing circuitry 24 receives the detection signal from the X-ray irradiation instruction device 10, it determines that a mode switching operation has occurred. By setting a predetermined threshold for the generation of the detection signal, unintentional mode switching can be prevented.

[0057] First, when the vibration sensor 124 generates a detection signal corresponding to the mode switching operation, it sends the detection signal to the processing circuitry 24 of the image generation device 20 via the transmission circuitry 122. When the processing circuitry 24 receives the detection signal, it determines that the mode switching operation has occurred and switches the function of the irradiation instruction switch 121 from the first mode to the second mode in accordance with a sequence. When the processing circuitry 24 receives an irradiation instruction signal via the transmission circuitry 122 in the second mode after the switch, it controls the X-ray irradiator 22 to irradiate X-rays for the second mode. On the other hand, when the processing circuitry 24 receives another detection signal via the transmission circuitry 122 in the second mode after the switch, the processing circuitry 24 switches the function of the irradiation instruction switch 121 from the second mode to the third mode (or the first mode) in accordance with a sequence.

[0058] The processing circuit 24 cyclically switches the function of the irradiation instruction switch 121 according to a predetermined sequence each time a detection signal is received. For example, the sequence is a sequence in which the function of the irradiation instruction switch 121 is switched in turn between fluoroscopy mode, imaging mode, fluoroscopy collection mode, and one-shot mode each time a detection signal is received from the X-ray irradiation instruction device 10, and the function of the irradiation instruction switch 121 is returned to fluoroscopy mode when a detection signal is received in one-shot mode. The sequence is set for each protocol or program. The sequence may be set at the time of manufacture or shipment of the angiography apparatus 1, or may be freely set by the operator D after installation. This allows the operator D to easily switch modes using the X-ray irradiation instruction device 10 without having to memorize complex operating methods.

[0059] Second, when the vibration sensor 124 generates multiple detection signals consecutively (within a predetermined period) in response to a mode switching operation, the vibration sensor 124 continuously transmits the multiple detection signals to the processing circuitry 24 of the image generating device 20 via the transmission circuitry 122. When the processing circuitry 24 receives multiple consecutive detection signals, it determines that a mode switching operation corresponding to the number of times has occurred, and switches the function of the irradiation instruction switch 121 from the first mode to the corresponding mode in accordance with the sequence. When the processing circuitry 24 receives an irradiation instruction signal via the transmission circuitry 122 in the corresponding mode after switching, it controls the X-ray irradiator 22 to irradiate X-rays for the corresponding mode. For example, when the processing circuitry 24 receives two consecutive detection signals, it switches the function of the irradiation instruction switch 121 from the current mode to the next mode, not the next mode, in accordance with the sequence. This allows the operator D to quickly access the desired mode by the mode switching operation, thereby further improving the operator D's work efficiency.

[0060] Furthermore, the first and second methods may be switched by user settings.

[0061] Furthermore, when a mode switching operation is performed, the X-ray irradiation instruction device 10 or the image generation device 20 can also notify the operator D of the type of mode after switching. For example, the X-ray irradiation instruction device 10 may further include an output device (not shown), and may output the type of mode after switching as visual information via the output device (for example, a display), or may output the type of mode after switching as audio information via the output device (for example, a speaker).

[0062] According to the third modified example of the X-ray irradiation instruction device 10, the instruction device main body 12 is attached to the hand by the finger support part 11, and therefore the instruction device main body 12 does not need to be gripped by the operator D, and can be used to easily issue X-ray irradiation instructions across a plurality of modes with the fingers of the hand. Furthermore, according to the third modified example of the X-ray irradiation instruction device 10, similar to the effect described above, compared to a configuration including a foot switch for issuing X-ray irradiation instructions, the operator D does not need to look at his or her feet, and stress on the operator can be reduced.

[0063] (Second embodiment) In the X-ray irradiation instruction device 10 according to the first embodiment and the first to third modified examples described above, the case where the instruction device main body 12 that can be placed within the palm of the hand is connected to the finger support section 11 that can be inserted into the finger of the operator D has been described. However, the X-ray irradiation instruction device 10 is not limited to this case. For example, the instruction device main body 12 may be connected to the inside of the fingertip side of the finger support section 11 that can be inserted into the finger of the operator D. This case will be described below.

[0064] FIG. 8 is a schematic diagram showing the configuration of an angiography apparatus equipped with an X-ray irradiation instruction device according to the second embodiment.

[0065] Fig. 8 shows an angiography apparatus 1A equipped with an X-ray irradiation instruction device according to the second embodiment. The angiography apparatus 1A includes an X-ray irradiation instruction device 10A and an image generation device 20. In Fig. 8, the same components as those in the angiography apparatus 1 shown in Fig. 1 are designated by the same reference numerals, and their explanations will be omitted. Also, a diagram showing the state during a procedure using the angiography apparatus 1A equipped with the X-ray irradiation instruction device 10A is the same as Fig. 2, and therefore its explanation will be omitted.

[0066] The X-ray irradiation instruction device 10A includes a finger support section 11A and an instruction device main body 12A. The finger support section 11A is inserted into the finger of an operator D performing interventional therapy using a catheter, thereby allowing the instruction device main body 12A to be worn on the hand. This allows the instruction device main body 12A to be maintained in the hand of the operator D. The instruction device main body 12A includes an irradiation instruction switch 121A, a transmission circuit 122, and a power supply device 123.

[0067] The irradiation instruction switch 121A is configured so that when the instruction device main body 12 is worn on the hand of the operator D, the irradiation instruction switch 121A can be operated with at least one of the middle finger, ring finger, and little finger of the hand. The irradiation instruction switch 121A is used to instruct the X-ray irradiator 22 to irradiate X-rays by pressing a button. Note that the irradiation instruction switch 121A may be a tactile switch, similar to the irradiation instruction switch 121, and there is no limitation on the type of switch. For example, the irradiation instruction switch 121A may be a lever-type switch. The irradiation instruction switch 121A may also be provided as a pressure sensor or the like, which senses contact.

[0068] 9(A) and 9(B) are diagrams showing the external configuration of the X-ray irradiation instruction device 10A. Fig. 9(A) is a front view of the X-ray irradiation instruction device 10A, and Fig. 9(B) is a IX-IX cross-sectional view of the X-ray irradiation instruction device 10A.

[0069] 9(A) and 9(B), the finger support unit 11A of the X-ray irradiation instruction device 10A has a cap-like shape that completely covers the entire fingertip, similar to a finger cot. The instruction device main body 12A is provided on the inner wall surface of the tip side of the finger support unit 11A. The instruction device main body 12A is configured so that an irradiation instruction switch 121A is disposed on the inner wall surface including the tip of the finger support unit 11A.

[0070] FIG. 10 is a side perspective view for explaining how to operate the X-ray irradiation instruction device 10A worn on the hand.

[0071] As shown in FIG. 10, the finger support portion 11A of the X-ray irradiation instruction device 10A is inserted into one of the middle finger, ring finger, or little finger (the middle finger in FIG. 10), so that the instruction device main body 12A is worn on the hand of the operator D.

[0072] In the X-ray irradiation instruction device 10 and the first to third modified examples described above, the operator needs to bend his / her finger to press the button of the irradiation instruction switch 121, which is provided in advance. On the other hand, in the X-ray irradiation instruction device 10A, the irradiation instruction switch 121A is provided on the extension of the fingertip on which the finger support portion 11A is attached. When the operator presses the fingertip against any point, the tip of the finger support portion 11A bends, and the irradiation instruction switch 121A approaches the fingertip. Therefore, the X-ray irradiation instruction device 10A has the advantage that it is not necessary to optimize the installation location of the irradiation instruction switch 121A within the movable range of the finger. For example, when the operator D presses the fingertip on which the X-ray irradiation instruction device 10A is attached against any point on the bed 30, the fingertip presses the irradiation instruction switch 121A, and an irradiation instruction signal is generated, allowing X-rays to be irradiated.

[0073] In addition to the effects of the X-ray irradiation instruction device 10 described above, the X-ray irradiation instruction device 10A has the effect of eliminating the need to optimize the installation location of the irradiation instruction switch 121A.

[0074] (Variation) In the above description, the transmission circuit 122 of the X-ray irradiation instruction device 10A is provided on the inner wall surface of the finger support part 11A, but this is not limitative. The transmission circuit 122 of the X-ray irradiation instruction device 10A may be provided on the outside of the finger support part 11A.

[0075] FIG. 11 is a diagram showing the external configuration of a modified example of the X-ray irradiation instruction device 10A.

[0076] 10, the transmission circuit 122 of the X-ray irradiation instruction device 10A is provided on the outside of the finger support portion 11A. For example, the transmission circuit 122 is provided on the wristband B on the outside of the finger support portion 11A. A signal from an irradiation instruction switch 121A provided at the tip of the finger support portion 11A is sent to the transmission circuit 122 via a wired cable E, and is then wirelessly transmitted from the transmission circuit 122 to the reception circuit 26.

[0077] The modified X-ray irradiation instruction device 10A has the same effect as the above-described X-ray irradiation instruction device 10A, that is, it is not necessary to optimize the installation location of the irradiation instruction switch 121A. Furthermore, the modified X-ray irradiation instruction device 10A can reduce the number of members provided on the inner wall surface of the finger support portion 11A.

[0078] According to at least one of the embodiments described above, an X-ray irradiation instruction can be easily given with the fingers of an operator using a device that does not need to be held by the operator.

[0079] Although several embodiments have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments may be embodied in various other forms, and various omissions, substitutions, modifications, combinations of embodiments, and combinations of embodiments with one or more modifications may be made without departing from the spirit of the invention. These embodiments and their modifications are included within the scope and spirit of the invention, and are also included in the scope of the inventions and their equivalents as defined in the claims. [Explanation of symbols]

[0080] 1,1A X-ray diagnostic equipment (e.g., angiography equipment) 10,10A X-ray irradiation instruction device 11,11A Finger support part 12,12A Indicator body 121,121A Irradiation indicator switch 124 Vibration Sensor 20 Image generation device

Claims

1. An irradiation instruction switch for issuing an instruction to irradiate X-rays; a finger support portion that can be inserted into a finger of a hand, The illumination instruction switch is configured to be operable by at least one of the middle finger, the ring finger, and the little finger of the hand when the illumination instruction switch is inserted into the fingers of the hand. X-ray irradiation instruction device.

2. An X-ray irradiation instruction device that can be worn on the hand, an irradiation instruction switch for issuing an instruction to irradiate X-rays; the illumination instruction switch is configured to be operable by at least one of a middle finger, a ring finger, and a little finger of the hand when the device is worn on the hand, the irradiation instruction switch includes a plurality of switch elements respectively corresponding to a plurality of imaging methods; the plurality of switch elements generate a signal indicating the start of irradiation of the X-rays and a signal indicating the end of irradiation corresponding to the plurality of imaging methods, respectively. X-ray irradiation instruction device.

3. An X-ray irradiation instruction device that can be worn on the hand, an irradiation instruction switch for issuing an instruction to irradiate X-rays; the illumination instruction switch is configured to be operable by at least one of a middle finger, a ring finger, and a little finger of the hand when the device is worn on the hand, the irradiation instruction switch includes a switch element for generating a signal indicating the start of irradiation of the X-rays corresponding to an imaging method and a signal indicating the end of irradiation, and a switch element for switching the function of the switch element; X-ray irradiation instruction device.

4. An X-ray irradiation instruction device that can be worn on the hand, an irradiation instruction switch for issuing an instruction to irradiate X-rays; the illumination instruction switch is configured to be operable by at least one of a middle finger, a ring finger, and a little finger of the hand when the device is worn on the hand, the irradiation instruction switch is a switch that generates a signal indicating the start of irradiation of the X-rays corresponding to an imaging method and a signal indicating the end of irradiation; switching the function of the irradiation instruction switch when vibration of the X-ray irradiation instruction device is detected; X-ray irradiation instruction device.

5. The X-ray irradiation instruction device further includes an acceleration sensor that detects vibrations of the X-ray irradiation instruction device.

5. The X-ray irradiation indicator according to claim 4.

6. cyclically switching the function of the irradiation instruction switch; 6. The X-ray irradiation indicator according to claim 3.

7. An irradiation instruction switch for issuing an instruction to irradiate X-rays; a finger support portion that can be inserted into a finger of a hand; an instruction device main body connected to the finger support portion and provided with the irradiation instruction switch, the instruction device main body is configured such that the illumination instruction switch is disposed within a movable range of the pad of at least one of a middle finger, a ring finger, and a little finger of the hand when the finger support portion is inserted on the finger and the finger is bent. X-ray irradiation instruction device.

8. An irradiation instruction switch for issuing an instruction to irradiate X-rays; a finger support portion that can be inserted into a finger of a hand; an instruction device main body connected to the finger support portion and provided with the irradiation instruction switch, the indicating device body has a size and shape that fits within the palm of the hand when the finger support portion is inserted onto the finger, X-ray irradiation instruction device.

9. The indicating device body is waterproof.

9. The X-ray irradiation indicator according to claim 7 or 8.

10. An irradiation instruction switch for issuing an instruction to irradiate X-rays; a finger support portion that can be inserted into a finger of a hand; an indicator body provided on an inner wall surface of the tip side of the finger support portion, The indicating device main body is configured such that the irradiation instruction switch is disposed on an inner wall surface including a tip of the finger support portion. X-ray irradiation instruction device.

11. The X-ray irradiation instruction device according to any one of claims 1 to 10, an image generating device that generates X-rays and generates X-ray image data in response to instructions from the X-ray irradiation instruction device; An X-ray diagnostic device comprising:

Images