JP7752008B2 - X-ray irradiation instruction device and X-ray diagnostic device - Google Patents

Description

The embodiments disclosed in this specification and drawings relate to an X-ray exposure instruction device and an X-ray diagnostic device.

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: "fluoroscopy mode," which emits relatively weak X-rays, and "imaging mode," which emits relatively strong X-rays. An operator performing interventional therapy using a catheter inserts the catheter into the patient while checking the catheter inside the blood vessels using X-ray irradiation in imaging mode or fluoroscopy mode. Once the catheter reaches the affected area, X-rays are used to image the area from all angles. The identified affected area is then treated using the catheter.

A foot switch is provided on the bed device of the X-ray diagnostic apparatus to instruct the start and end of X-ray exposure. 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 exposure. The handheld interface device is held by the operator and allows the operator to issue commands.

JP 2011-245274 A

One of the problems that the embodiments disclosed in this specification and drawings aim to solve is to enable an operator to easily issue instructions to irradiate X-rays using 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 are not limited to the above problem. Problems corresponding to the effects of each configuration shown in the embodiments described below can also be considered as other problems solved by the embodiments disclosed in this specification.

In one embodiment, an X-ray irradiation instruction device that can be worn on the hand includes an irradiation instruction switch for issuing an instruction to irradiate X-rays. When worn on the hand, the X-ray irradiation instruction device is configured so that the irradiation instruction switch can be operated with at least one of the middle finger, ring finger, and little finger.

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. 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. FIG. 3 is a diagram showing the external configuration of the X-ray irradiation instruction device according to the first embodiment. 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. 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. 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. 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. 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. FIG. 9 is a diagram showing the external configuration of an X-ray irradiation instruction device according to the second embodiment. FIG. 10 is a side perspective view for explaining a method of operating the X-ray irradiation instruction device according to the second embodiment, which is worn on a hand. 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.

Embodiments of the X-ray irradiation instruction device and X-ray diagnostic device will be described in detail below with reference to the drawings.

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 apparatus include, but are not limited to, X-ray imaging apparatus (X-ray apparatus), X-ray TV apparatus, breast X-ray imaging apparatus (mammography apparatus), and X-ray circulatory apparatus (angio apparatus). Below, we will explain an example 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, etc.

(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 a first embodiment. 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.

Figures 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.

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

The irradiation instruction switch 121 is configured so that when the instruction device main body 12 is worn on the hand of the operator D, the irradiation instruction switch 121 can be operated with at least one of the middle finger, ring finger, and little finger. The irradiation instruction switch 121 is used to instruct the X-ray irradiation device 22, described below, 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.

The transmitting circuit 122 is a device that transmits signals wirelessly 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 a remote control-type irradiation instruction switch 121 and having a simple configuration, X-ray irradiation instructions can be given without the hassle of cables. Note that the wireless communication is not limited to infrared IrDA communication, and wireless LAN standards, Bluetooth (registered trademark), or custom interfaces that add their own communication rules to these may also be used.

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.

It is preferable that the indicator body 12 be waterproofed. For example, the housing of the indicator body 12 is made of an impermeable material (e.g., plastic), and a structure (e.g., gasket) 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 interior of the indicator body 12.

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

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 facing the connection section with the instruction device main body 12. Furthermore, an irradiation instruction switch 121 (e.g., a fluoroscopy SW) is provided in a position that can be pressed with either the middle finger, ring finger, or little finger when the finger support section 11 is inserted on the finger.

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.

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

Returning to the explanation of Figures 1 and 2, the image generating device 20 includes a high-voltage supply device 21, an X-ray emitting device 22, an X-ray detecting device 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 Figure 2), and a bed 30 (shown only in Figure 2). In response to instructions from the X-ray irradiation instruction device 10, the image generating device 20 can generate X-ray image data relating to the imaging site of a subject, for example, a patient P, and display the data to the operator D.

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.

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 aperture 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 aperture device movably supports aperture 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) that adjusts 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.

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. Under the control of the processing circuitry 24, the X-ray detection device 23 can move along the SID (Source-Image Distance) direction, i.e., move back and forth. Furthermore, under the control of the processing circuitry 24, the X-ray detection device 23 can move along a rotational direction centered on the SID direction, i.e., rotate.

The processing circuit 24 is composed of processors such as dedicated or general-purpose CPUs (Central Processing Units), MPUs (Micro Processor Units), or GPUs (Graphics Processing Units), as well as ASICs and programmable logic devices. Examples of programmable logic devices include simple programmable logic devices (SPLDs), complex programmable logic devices (CPLDs), and field programmable gate arrays (FPGAs).

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, a memory circuitry 25 may be provided separately 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.

The memory circuitry 25 is composed of 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 composed of 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 the OS (Operating System)) used by the processing circuitry 24, as well as data required to execute 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 memory unit.

The receiving circuit 26 is a device that receives signals wirelessly, for example, a device that receives infrared rays. Note that wireless communication is not limited to IrDA communication using infrared rays; wireless LAN standards, Bluetooth (registered trademark), or custom interfaces that add their own unique communication rules to these may also be used. Note that the receiving circuit 26 is an example of a receiving unit.

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

The display 28 is composed of 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.

The C-arm 29 supports the X-ray irradiation device 22 and the X-ray detection device 23 so that they are arranged opposite each other. The C-arm 29 is capable of rotating in an arc, i.e., rotating in the CRA (Cranial View) direction and the CAU (Caudal View) direction, under the control of the processing circuitry 24 or in accordance with manual operation. The C-arm 29 also rotates around a fulcrum, i.e., rotating in the LAO (Left Anterior Oblique View) direction and the 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 corresponds to the LAO rotation and the RAO rotation, and its rotation around its fulcrum corresponds to the CRA rotation and the CAU rotation.

Furthermore, in FIG. 2, the C-arm structure provided in the image generating device 20 is shown as an under-table configuration in which the X-ray irradiator 22 is located below the top of the bed 30. However, this is not limited to this case, and the X-ray irradiator 22 may also be an over-table configuration in which it is located above the top. Furthermore, the C-arm 29 may be replaced by an Ω arm, or may be combined with an Ω arm.

The bed 30 is equipped with 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.

Figures 4(A) and (B) are front views illustrating how to operate the X-ray irradiation instruction device 10 worn on the hand. Figure 5 is a side perspective view illustrating how to operate the X-ray irradiation instruction device 10 worn on the hand.

As shown in Figures 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, or little finger (between the second joint (PIP joint) and the third joint (MP joint) of the ring finger in Figure 4), and the instruction device main body 12 is worn on the hand of operator D. Furthermore, the instruction device main body 12 is configured so that, with the finger support unit 11 inserted into a finger (e.g., the ring finger), the irradiation instruction switch 121 (e.g., "fluoroscopy SW") is positioned within the range of movement 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 when the finger support unit 11 is 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.

In this way, the indicator 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, allowing operator D to freely use all five fingers with the finger support section 11 inserted. This allows operator D to perform operations such as manipulating the catheter C with his thumb and index finger, while issuing X-ray irradiation instructions (i.e., pressing the button on the irradiation instruction switch 121) with his other fingers.

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 sent to the processing circuit 24 of the image generation device 20 via the transmission circuit 122. X-ray irradiation from the X-ray irradiation device 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 sent to the processing circuit 24 of the image generation device 20 via the transmission circuit 122. X-ray irradiation from the X-ray irradiation device 22 is then ended under the control of the processing circuit 24.

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 generation device 20 via the transmission circuit 122. X-ray irradiation from the X-ray irradiation device 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 generation device 20 via the transmission circuit 122. X-ray irradiation from the X-ray irradiation device 22 is then 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 continuing X-ray irradiation 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 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 the detection signal, it is possible to prevent the generation of an irradiation instruction signal due to unintentional pressing.

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

Since the image generating device 20 can irradiate X-rays using various imaging methods, by assigning one of multiple modes to the irradiation instruction switch 121, it is possible to issue an instruction to irradiate X-rays according to each mode. For example, if 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, if 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.

With the X-ray irradiation instruction device 10, the instruction device main body 12 is attached to the hand via the finger support portion 11, so the instruction device main body 12 does not need to be grasped by the operator D, allowing the operator D to easily issue instructions to irradiate X-rays using their fingers. Furthermore, compared to a configuration equipped with a foot switch for issuing instructions to irradiate X-rays, the X-ray irradiation instruction device 10 eliminates the need for operator D to look at their feet, reducing stress on the operator D.

(First Modification)
In the above description, the case where the exposure instruction switch 121 of the X-ray exposure instruction device 10 includes one switch element has been described as an example, but the present invention is not limited to this case. The exposure instruction switch 121 may include multiple switch elements arranged in parallel. The exposure 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 (exposure start signal) and a signal indicating the end of irradiation (exposure end signal) corresponding to the multiple imaging methods.

Figures 6(A) and (B) are front views illustrating how to operate a first variant of the X-ray irradiation instruction device 10 worn on the hand. Figure 6(A) shows the state in which the button of the irradiation instruction switch 121 is not pressed, and Figure 6(B) shows the state in which the button of the irradiation instruction switch 121 is pressed.

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

When the irradiation instruction switch 121 has multiple 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 sequence between fluoroscopy mode, imaging mode, fluoroscopy acquisition mode, and one-shot mode.

According to the first variant of the X-ray irradiation instruction device 10, the instruction device main body 12 is attached to the hand via the finger support section 11, so the instruction device main body 12 does not need to be grasped by the operator D, allowing the operator D to easily issue X-ray irradiation instructions across multiple modes using the operator's fingers. Furthermore, similar to the effect described above, the first variant of the X-ray irradiation instruction device 10 eliminates the need for operator D to look at their feet, reducing stress on the operator D compared to a configuration equipped with a foot switch for issuing X-ray irradiation instructions.

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

By employing a multi-stage switch, the irradiation instruction switch 121 can issue X-ray irradiation instructions across multiple modes. For example, the irradiation instruction switch 121 can be a two-stage switch (e.g., for both fluoroscopy and radiography) instead of a multi-stage switch. In this case, when the button of the irradiation instruction switch 121 is half-pressed 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 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 fluoroscopy from the X-ray irradiator 22 is initiated and continues. When the button of the irradiation instruction switch 121 is released, an irradiation end signal for fluoroscopy is generated and sent to the processing circuit 24 of the image generation device 20 via the transmission circuit 122. Then, X-ray irradiation for fluoroscopy from the X-ray irradiator 22 is terminated under the control of the processing circuit 24.

On the other hand, when the button of the irradiation instruction switch 121 is fully pressed from the state shown in Figure 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 begins, and X-ray irradiation for imaging continues. When the button of the irradiation instruction switch 121 is released, 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 terminated under the control of the processing circuit 24.

In this way, by using a multi-stage switch as the irradiation instruction switch 121, the irradiation instruction switch 121 can issue X-ray irradiation instructions across multiple modes. Furthermore, the multi-stage switch also allows operator D to freely customize the assignment of modes to each stage (each depression depth) of the multi-stage switch.

The technical concept of the second variant of the X-ray irradiation instruction device 10 can also be applied to the technical concept of the first variant described above. Specifically, the irradiation instruction switch 121 of the X-ray irradiation instruction device 10 has multiple switch elements, all or some of which can be multi-stage switches.

According to the second variant of the X-ray irradiation instruction device 10, the instruction device main body 12 is attached to the hand via the finger support section 11, so the instruction device main body 12 does not need to be grasped by the operator D, allowing the operator D to easily issue X-ray irradiation instructions across multiple modes using the operator's fingers. Furthermore, similar to the effect described above, the second variant of the X-ray irradiation instruction device 10 eliminates the need for operator D to look at their feet, reducing stress on the operator D compared to a configuration equipped with a foot switch for issuing X-ray irradiation instructions.

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

Figure 7 is a schematic diagram showing the configuration of an angiography device 1 equipped with a third variant of the X-ray irradiation instruction device 10.

The indicator main body 12 includes an irradiation indicator switch 121, a transmission circuit 122, a power supply 123, and a vibration sensor 124. Note that in Figure 7, the same components as those in the angiography device 1 shown in Figure 1 are designated by the same reference numerals and will not be described again.

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 nine-axis sensor. When a mode switching operation is performed by 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. Upon receiving the detection signal from the X-ray irradiation instruction device 10, the processing circuitry 24 determines that a mode switching operation has occurred. Setting a predetermined threshold for the generation of the detection signal can prevent unintended mode switching.

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. Upon receiving the detection signal, the processing circuitry 24 determines that a 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 switching, 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 switching, 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.

Each time a detection signal is received, the processing circuitry 24 cyclically switches the function of the irradiation instruction switch 121 according to a predetermined sequence. For example, the sequence may switch the function of the irradiation instruction switch 121 sequentially 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 may return the function of the irradiation instruction switch 121 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 when the angiography device 1 is manufactured or shipped, 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.

Second, when the vibration sensor 124 generates multiple detection signals consecutively (within a predetermined period) in response to a mode switching operation, it sends the multiple detection signals consecutively to the processing circuit 24 of the image generation device 20 via the transmission circuit 122. When the processing circuit 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 circuit 24 receives an irradiation instruction signal via the transmission circuit 122 in the corresponding mode after switching, it controls the X-ray irradiation device 22 to irradiate X-rays for the corresponding mode. For example, when the processing circuit 24 receives two consecutive detection signals, it switches the function of the irradiation instruction switch 121 in accordance with the sequence from the current mode to the next mode, rather than the next mode. This allows operator D to quickly call up the desired mode by switching modes, further improving operator D's work efficiency.

The first and second methods described above may also be switchable via user settings.

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 output the type of mode after switching as visual information via the output device (e.g., a display), or output the type of mode after switching as audio information via the output device (e.g., a speaker).

According to the third variant of the X-ray irradiation instruction device 10, the instruction device main body 12 is attached to the hand by the finger support portion 11, so the instruction device main body 12 does not need to be grasped by the operator D, and can be easily used with the fingers of the hand to issue X-ray irradiation instructions across multiple modes. Furthermore, similar to the effect described above, the third variant of the X-ray irradiation instruction device 10 eliminates the need for visual inspection of the feet, reducing stress on the operator D compared to a configuration equipped with a foot switch for issuing X-ray irradiation instructions.

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.

Figure 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.

Figure 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. Note that in Figure 8, components identical to those in the angiography apparatus 1 shown in Figure 1 are designated by the same reference numerals and will not be described again. Also, a diagram showing the state during a procedure using an angiography apparatus 1A equipped with an X-ray irradiation instruction device 10A is the same as Figure 2, and therefore will not be described again.

The X-ray irradiation instruction device 10A comprises 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, 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 comprises an irradiation instruction switch 121A, a transmission circuit 122, and a power supply unit 123.

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. The irradiation instruction switch 121A is used to instruct the X-ray irradiation device 22 to irradiate X-rays by pressing a button. Note that, like the irradiation instruction switch 121, the irradiation instruction switch 121A may be a tactile switch, and there are no restrictions 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 detects contact.

Figures 9(A) and (B) are diagrams showing the external configuration of the X-ray irradiation instruction device 10A. Figure 9(A) is a front view of the X-ray irradiation instruction device 10A, and Figure 9(B) is a cross-sectional view of the X-ray irradiation instruction device 10A taken along line IX-IX.

As shown in Figures 9(A) and (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 also configured so that an irradiation instruction switch 121A is located on the inner wall surface including the tip of the finger support unit 11A.

Figure 10 is a side perspective view illustrating how to operate the X-ray irradiation instruction device 10A worn on the hand.

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), thereby causing the instruction device main body 12A to be worn on the hand of the operator D.

In the above-described X-ray irradiation instruction device 10 and the first to third variants, the operator must bend his or her finger to press the button of the pre-prepared irradiation instruction switch 121. On the other hand, in the X-ray irradiation instruction device 10A, the irradiation instruction switch 121A is located on the extension of the fingertip into which the finger support section 11A is inserted. Pressing the fingertip against any surface causes the tip of the finger support section 11A to bend, and the irradiation instruction switch 121A approaches the fingertip. Therefore, the X-ray irradiation instruction device 10A has the advantage of eliminating the need to optimize the installation location of the irradiation instruction switch 121A within the finger's movable range. For example, when operator D presses the fingertip, to which the X-ray irradiation instruction device 10A is attached, against any location on the bed 30, the fingertip presses the irradiation instruction switch 121A, generating an irradiation instruction signal and enabling X-ray irradiation.

In addition to the advantages of the X-ray irradiation instruction device 10 described above, the X-ray irradiation instruction device 10A also offers the advantage of eliminating the need to optimize the installation location of the irradiation instruction switch 121A.

(Modification)
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 portion 11A, but this is not a limitation. The transmission circuit 122 of the X-ray irradiation instruction device 10A may be provided on the outside of the finger support portion 11A.

Figure 11 shows the external configuration of a modified version of the X-ray irradiation instruction device 10A.

As shown in FIG. 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 the 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.

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

At least one of the embodiments described above allows an operator to easily instruct X-ray irradiation using a device that does not need to be held by the operator.

While 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 a variety of 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 invention and its equivalents as set forth in the claims.

1, 1A X-ray diagnostic device (e.g., angiography device)
10, 10A X-ray irradiation instruction device 11, 11A Finger support portion 12, 12A Instruction device main body 121, 121A Irradiation instruction switch 124 Vibration sensor 20 Image generating device

Claims (11)

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. A hand-wearable X-ray irradiation indicator,
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. A hand-wearable X-ray irradiation indicator,
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. A hand-wearable X-ray irradiation indicator,
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. 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. cyclically switching the function of the irradiation instruction switch;
6. The X-ray irradiation indicator according to claim 3. 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. 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. The indicating device body is waterproof.
9. The X-ray irradiation indicator according to claim 7 or 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 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. 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: