JP7329994B2 - X-ray diagnostic equipment - Google Patents

Description

TECHNICAL FIELD The present invention relates to an X-ray diagnostic apparatus, and more particularly to a technique of illuminating a subject on a bed and assisting an operator's procedure.

An X-ray diagnostic apparatus includes an X-ray tube that generates X-rays and an X-ray diaphragm device that narrows the range of X-rays emitted from the X-ray tube toward a subject. The X-ray diaphragm device has X-ray diaphragm blades made of a material such as lead that shields X-rays. Range is changed.

2. Description of the Related Art There is known an X-ray diagnostic apparatus that includes illumination (irradiation field illumination) for illuminating an X-ray irradiation field irradiated to a subject inside an X-ray diaphragm device (for example, Patent Document 1). In such an X-ray diagnostic apparatus, the X-ray irradiation field is visualized by irradiation field illumination. can be done.

In the X-ray diagnostic apparatus disclosed in Patent Document 1, the irradiation field illumination is arranged at a position optically equivalent to the X-rays emitted from the X-ray tube, and the visible light emitted by the irradiation field illumination is After being refracted by an optical part such as a mirror, the beam is narrowed by X-ray aperture blades to illuminate the same range as the X-ray irradiation range.

JP-A-2003-175030

However, in the conventional X-ray diagnostic apparatus such as Patent Document 1 in which the irradiation field illumination is mounted on the X-ray diaphragm device, the illumination range of the irradiation field illumination and the X-ray irradiation range are adjusted by adjusting the X-ray diaphragm blades as described above. and change together, when the operator sets the X-ray irradiation range to a certain range, the desired range may not be illuminated sufficiently or the desired brightness may not be obtained. Further, in the conventional X-ray diagnostic apparatus, when the illumination range of the irradiation field illumination is determined so as to illuminate a desired range and brightness, the X-ray irradiation range may not be within the desired range.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an X-ray diagnostic apparatus capable of easily obtaining a desired X-ray irradiation range, illumination range and brightness.

The X-ray diagnostic apparatus of the present invention comprises an X-ray tube device for emitting X-rays toward a subject and an X-ray diaphragm provided with X-ray diaphragm blades for limiting the irradiation area of the X-rays irradiated to the subject. device. The X-ray diaphragm device houses an irradiation field illumination unit that emits irradiation light for illuminating an irradiation range of X-rays, X-ray diaphragm blades and the irradiation field illumination unit, and has an opening that serves as a passage for X-rays and irradiation light. and an X-ray shielding box, and a light-emitting part arranged on the outer peripheral surface of the X-ray shielding box on the opening side.

According to the present invention, desired X-ray irradiation range, illumination range and brightness can be easily obtained.

1 is a side view showing the overall configuration of an X-ray diagnostic apparatus 1; FIG. 2 is a block diagram showing a configuration example of an X-ray diagnostic apparatus 1; FIG. FIG. 2 is a cross-sectional view showing a configuration example of an X-ray diaphragm device 200; The figure which looked at the X-ray diaphragm apparatus 200 from the bottom. 1 is a side view showing the configuration of the X-ray diagnostic apparatus 1A of Embodiment 1. FIG. 1 is a block diagram showing a configuration example of an X-ray diagnostic apparatus 1A; FIG. 4 is a flowchart of operations performed by the X-ray diagnostic apparatus 1A; FIG. 3 is a block diagram showing the configuration of a modification of the X-ray diagnostic apparatus 1A; 6 is a flowchart of operations performed by a modification of the X-ray diagnostic apparatus 1A; FIG. 2 is a side view showing the configuration of an X-ray diagnostic apparatus 1B according to Embodiment 2; 2 is a block diagram showing the configuration of an X-ray diagnostic apparatus 1B; FIG. FIG. 11 is a block diagram showing the configuration of an X-ray diagnostic apparatus 1C according to Embodiment 3; An example of what is displayed on the display UI when entering the type of procedure. 4 is a flowchart of operations performed by the X-ray diagnostic apparatus 1C. FIG. 11 is a cross-sectional view showing the configuration of an X-ray diaphragm device 200 of the X-ray diagnostic apparatus 1D of Embodiment 4; FIG. 2 is a block diagram showing the configuration of an X-ray diagnostic apparatus 1D; 4 is a flowchart of operations performed by the X-ray diagnostic apparatus 1D; 6 is a flowchart of operations performed by an X-ray diagnostic apparatus according to a modification;

An embodiment of the present invention will be described below with reference to the drawings.

First, the overall configuration of the X-ray diagnostic apparatus 1 of the present invention will be described. As shown in FIG. 1, the X-ray diagnostic apparatus 1 includes a bed 102 on which a subject 100 is placed, an X-ray tube device 104 for irradiating the subject 100 on the bed 102 with X-rays, and an X-ray tube device 104. and an X-ray diaphragm device 200 that limits the irradiation range of X-rays emitted from the X-ray tube device 200 .

The X-ray tube device 104 has an X-ray tube that generates X-rays. The X-ray tube device 104 may have an X-ray filter or the like that selectively transmits X-rays of a specific energy.

The X-ray diaphragm device 200 includes X-ray diaphragm blades 21 composed of a plurality of X-ray shielding plates, an irradiation field illumination unit 22 that illuminates the irradiation field of X-rays and emits visible light (irradiation light) B, An X-ray shielding box 23 housing an X-ray aperture blade 21 and an irradiation field illumination unit 22 and having a path for X-rays and irradiation light B, and an X-ray shielding box 23 arranged on the outer peripheral surface of the X-ray shielding box 23 to receive light C at hand. and a light emitting portion 30 for emitting light. A plurality of light emitting units 30 are provided to illuminate the subject 100 and the hand of the operator from a plurality of directions. Each light emitting unit 30 has a light emitting element and emits heat when emitting light. A specific configuration of the X-ray diaphragm device 200 will be described later in detail.

As shown in FIG. 2, the X-ray diagnostic apparatus 1 includes an apparatus control unit 120 that controls each component such as the X-ray diaphragm apparatus 200, and a high voltage generator that supplies power to the X-ray tube apparatus 104 to generate X-rays. an X-ray controller 123 that controls the high voltage generator 110 to adjust the amount of X-rays emitted from the X-ray tube device 104; A lighting control unit 124 is further provided.

The X-ray diagnostic apparatus 1 also detects X-rays that have passed through the subject 100 and generates an X-ray signal corresponding to the detected X-ray dose, and an X-ray detection unit (not shown) that outputs X-ray signals. An image processing unit 116 that performs image processing on an X-ray signal, an operation unit 40 that receives on/off instructions for the radiation field illumination unit 22 and the light emitting unit 30, and an instruction for X-ray irradiation, and an operator's various an operation UI 122 that accepts a selection operation; a storage unit 114 that stores various information such as an X-ray image processed by the image processing unit 116, a lighting time of the irradiation field illumination unit 22, and the like; and a display unit 118 for displaying a line image.

The function of the device control unit 120 is realized as software installed in the CPU or GPU. Some or all of the functions of the device control unit 120 can also be realized by hardware such as ASIC (Application Specific Integrated Circuit) or FPGA (Field Programmable Gate Array).

A specific configuration example of the X-ray diaphragm device 200 will be described below. Hereinafter, the side on which the X-ray tube device 104 is provided with respect to the X-ray diaphragm device 200 is defined as the upper side, and the side on which the bed 102 is provided is defined as the lower side.

As shown in FIG. 3, the X-ray diaphragm device 200 includes X-ray diaphragm blades 21, an X-ray shielding box 23, an irradiation field illumination unit 22, and a light emitting unit 30, and also emits irradiation light from the irradiation field illumination unit 22. It has an optical part 24 such as a reflecting mirror that refracts B and guides it to the X-ray aperture blade 21 side, and an outer frame part 25 arranged so as to cover the outer circumferences of the X-ray shielding box 23 and the light emitting part 30 .

The X-ray diaphragm blades 21 may have the same configuration as known X-ray diaphragm blades. and the irradiation light B emitted from the irradiation field illumination unit 22 can pass through. The X-ray diaphragm blades 21 change the size of the opening k according to the opening degree information notified from the apparatus control unit 120, thereby making the X-ray irradiation range and the irradiation light B irradiation range on the subject 100 the same at the same time. be changed to The X-ray shielding plate of the X-ray diaphragm blades 21 is made of a material (for example, lead) capable of shielding X-rays.

The X-ray shielding box 23 has an X-ray shielding function of shielding X-rays and a heat dissipation function of dissipating heat generated by the light emitting unit 30 . Specifically, the X-ray shielding box 23 includes an X-ray shielding layer 231 that shields X-rays, and a heat dissipation layer 232 that is disposed around the X-ray shielding layer 231 and has higher heat dissipation than the X-ray shielding layer 231. It has a multilayer structure of The X-ray shielding layer 231 and the heat dissipation layer 232 are adhered with an adhesive, for example.

The X-ray shielding box 23 has openings 23a and 23a in the wall portion on the side (upper side) facing the X-ray tube device 104 and the wall portion on the side (lower side) facing the subject 100 facing the wall portion. 23b. The upper opening 23 a serves as an incident path for X-rays with respect to the X-ray shielding box 23 , and is positioned directly above the opening k of the X-ray diaphragm blade 21 . The lower opening 23b serves as a passage through which X-rays are emitted from the X-ray shielding box 23, and is arranged directly below the opening k.

The X-ray shielding layer 231 of the X-ray shielding box 23 prevents the X-rays passing through the inside of the X-ray shielding box 23 from leaking to the outside from outside the opening 23b, thereby preventing unnecessary X-rays from reaching the operator or the subject. prevent exposure to radiation. The X-ray shielding layer 231 is made of a material that shields X-rays, such as lead.

The heat dissipation layer 232 is provided to efficiently dissipate the heat generated by the light emitting unit 30 because the light emitting unit 30 generates heat when it is lit, and is made of a material with high heat dissipation such as aluminum, an aluminum alloy, or iron. ing. In particular, the heat dissipation layer 232 is preferably made of aluminum in consideration of weight reduction and miniaturization.

In the case where the heat dissipation layer 232 is made of aluminum, it is more preferable to form an anti-diffuse reflection layer (for example, an alumite layer) on the surface of the heat dissipation layer 232 to prevent the diffuse reflection of the light emitted from the light emitting section 30 inside the X-ray diaphragm device 200 . preferable. It is preferable that the surface of the heat dissipation layer 232 has a black or blackish color due to the irregular reflection prevention layer. The anti-diffuse reflection layer can prevent the brightness of the hands of the operator from changing from a predetermined brightness due to diffuse reflection of light, and can also prevent the shadow of the operator's hands from increasing due to scattered light.

A transparent plate (for example, an acrylic plate) 235 may be fixed to the lower surface of the X-ray shielding box 23 to cover the opening 23b. A cross mark may be engraved on the transparent plate 235 as shown in FIG. When the irradiation light B passes through the transparent plate 235 , a cross mark is projected onto the subject 100 so that the center of the irradiation field can be seen.

The irradiation field illumination unit 22 irradiates the irradiation light B at a position optically equivalent to the X-rays emitted from the X-ray tube device 104 and does not block the path of the X-rays emitted from the X-ray tube device 104. It is placed in a position where there is no

The optical section 24 is housed in the X-ray shielding box 23 and arranged upstream of the X-ray aperture blades 21 on the paths of the X-rays and the irradiation light B. As shown in FIG. The irradiation field illumination unit 22 changes its lighting state by operating the operation unit 40 by the operator.

X-rays emitted from the X-ray tube device 104 and incident on the X-ray shielding box 23 can pass through the optical section 24. The light is emitted outside the X-ray shielding box 23 through an opening 23b in the lower portion of the shielding box 23 . On the other hand, when the irradiation light B emitted from the irradiation field illumination unit 22 reaches the optical unit 24, it collides with the path of the X-rays. Bent as you go. The irradiation light B refracted by the optical unit 24 is guided by the optical unit 24 to the opening k of the X-ray diaphragm blade 21, is narrowed by the X-ray diaphragm blade 21, and illuminates a range equivalent to the X-ray irradiation range. Therefore, the operator can visually confirm the irradiation range of X-rays using the irradiation light B. FIG.

It is preferable that the irradiation field illumination unit 22 is composed of one light emitting element. If the irradiation field illumination unit 22 is composed of one light emitting element, and the X-ray shielding box 23 is provided with a transparent plate 235 with a cross engraved, the irradiation field illumination unit 22 projects the light onto the subject 100. The cross mark on the screen becomes a shadow, and the areas other than the cross mark are projected brightly to make the edges of the cross pattern stand out, making it easier for the operator to recognize the irradiation field. It is preferable that a single light-emitting element used in the irradiation field illumination unit 22 has a sufficient luminous intensity to make the edge of the cross pattern stand out.

The light emitting unit 30 is fixed to the lower surface of the X-ray shielding box 23 so as not to block the X-ray irradiation area. In the illustrated example, a plurality of light emitting units 30 are arranged, and by combining the hand light C emitted from each light emitting unit 30, a wider range than the irradiation light B from the irradiation field illumination unit 22 is emitted from multiple directions. illuminated.

Each light-emitting unit 30 has a light intensity lower than that of the irradiation field illumination unit 22, but the combined light C from the plurality of light-emitting units 30 can sufficiently brightly illuminate the hands of the operator. It is preferable to have an element.

The outer frame part 25 is provided so as to cover the periphery of the light emitting part 30 so that the operator does not touch the light emitting part 30 which is energized and heats up when lit. As shown in FIG. 4, the outer frame portion 25 has, in its lower wall portion, an opening 25b for passing the illumination light B and an opening 25b for passing the hand light C emitted from each of the plurality of light emitting portions 30. and a plurality of holes 25c. As shown in FIG. 3, the opening 25b is provided directly below the opening 23b of the X-ray shielding box 23. When the X-rays and the irradiation light B are emitted from the lower part of the opening 23b of the X-ray shielding box 23, It is emitted from below the X-ray diaphragm device 200 through the opening 25b. Further, the holes 25c are provided directly below the respective light emitting sections 30, and the hand light C emitted from the respective light emitting sections 30 is emitted from below the X-ray diaphragm device 200 through the respective holes 25c.

The outer frame portion 25 may have an opening 25a in its upper wall portion that serves as a path for X-rays. The outer frame portion 25 is preferably made of a highly heat-resistant material (for example, a highly heat-resistant resin) that does not deform even when the light-emitting portion 30 emits heat during light emission. Further, inside the outer frame portion 25, a transparent plate 25b1 made of resin or the like may be provided to cover the hole 25c.

As described above, in the X-ray diagnostic apparatus of the present embodiment, the radiation field illumination unit that illuminates the irradiation range of X-rays and the light emitting unit that illuminates the hands of the operator are configured separately. Even if the desired range differs from the X-ray irradiation range, the operator can easily obtain the desired X-ray irradiation range, illumination range and brightness.

In addition, in the X-ray diagnostic apparatus of the present embodiment, since the plurality of light emitting units 30 emit hand light from multiple directions to illuminate the hand of the operator and the subject, the operator can be seen on the subject during the procedure. The shadow of the hand becomes lighter. This improves the visibility of the location where the operator performs the procedure on the subject.

In the X-ray diagnostic apparatus of this embodiment, since the light emitting section is arranged on the outer surface of the X-ray shielding box, there is no need to provide the X-ray shielding box with a hole that serves as a passage for light at hand. That is, since the X-ray shielding box does not need holes other than the opening that serves as the X-ray passage, it is possible to prevent X-rays from leaking out of places other than the X-ray passage. Furthermore, in the X-ray diagnostic apparatus, since the light emitting unit is arranged at a position where the X-rays are not directly irradiated, deterioration of the light emitting unit due to the X-rays can be prevented.

Hereinafter, based on the configuration of the X-ray diaphragm device 200 described above, an embodiment of a specific configuration for driving the light emitting unit will be described.

<Embodiment 1>
The X-ray diagnostic apparatus 1A of Embodiment 1 will be described below.

[composition]
First, the configuration of the X-ray diagnostic apparatus 1A will be described. In the X-ray diagnostic apparatus 1A, as shown in FIG. 5, an operation unit 40 for accepting user input accepts non-contact input. You can enter instructions to

The X-ray diagnostic apparatus 1A is provided with a voice reception section 40A as an example of the non-contact operation section 40 that receives voice input generated around the subject. The voice reception section 40A is fixed to the support section 50, for example.

As shown in the block diagram of FIG. 6, the voice reception unit 40A includes a voice recognition element 401 that always receives surrounding voice as voice input and generates a voice signal, and a voice recognition element 401 that converts the generated voice signal into voice data. and circuit 402 . The apparatus control section 120 also includes a speech recognition section 40B which extracts a specific keyword from the speech data converted by the speech recognition circuit 402 and controls the operation of the X-ray diagnostic apparatus 1A based on the keyword.

Keywords accepted by the speech recognition unit 40B include turning on/off the irradiation light and the hand light, such as "illuminate the X-ray irradiation field", "illuminate the hand", or "irradiate the X-ray". Keywords related to X-ray irradiation are stored in the storage unit 114 in advance. For example, when the voice recognition unit 40B of the device control unit 120 receives from the voice data that the voice input “Light up your hand” registered in the storage unit 114 has been performed, the lighting control unit 124 receives the light emitting unit 30 to turn on.

An operation example of the X-ray diagnostic apparatus 1A will be described below with reference to FIG. When the irradiation field illumination unit 22 emits light, it is preferable to turn off the light emission unit 30 in order to make it easier for the operator to recognize the irradiation field. An operation example will be described below, assuming that the light emitting unit 30 is extinguished in conjunction with the light emission of the irradiation field illumination unit 22 .

[Step S1]
At the start of the operation of the X-ray diagnostic apparatus 1A, the hand light and the irradiation light are not emitted. When the operation of the X-ray diagnostic apparatus 1A is started, the speech recognition section 40B of the device control section 120 starts to determine whether or not the keyword for emitting the light at hand has been received by the speech reception section 40A.

For example, when the operator says "Light up your hand", the voice reception unit 40A receives the voice of the operator. The voice recognition unit 40B recognizes the keyword for illuminating the hand and sends an instruction to the lighting control unit 124 to cause the light emitting unit 30 to emit light. Thereby, the switch of the light emitting section 30 is turned on.

Specifically, the voice recognition element 401 of the voice receiving unit 40A receives the voice of the operator. The speech recognition element 401 generates a speech signal from the received speech as shown in FIG. 6 and transmits the speech signal to the speech recognition circuit 402 . The voice recognition circuit 402 converts the received voice signal into voice data and transmits the voice data to the device controller 120 . The voice recognition unit 40B of the device control unit 120 compares the voice data received from the voice recognition circuit 402 with keywords pre-stored in the storage unit 114, and recognizes that the received voice data is a keyword for turning on the hand light C. It recognizes that there is, and sends an instruction to the illumination control unit 124 to cause the light emitting unit 30 to emit light.

[Step S2]
When the hand light switch is turned on, the light emitting unit 30 lights according to the instruction from the illumination control unit 124 .

[Step S3]
When the operator says, for example, "illuminate the X-ray irradiation field", the voice reception unit 40A receives the operator's voice in the same manner as in step S1, and the switch that causes the irradiation field illumination unit 22 to emit light is turned on. The voice recognition unit 40B recognizes that the voice data received from the voice recognition circuit 402 is a keyword for causing the illumination field illumination unit 22 to emit light, and sends an instruction to illuminate the illumination light B to the illumination control unit 124. FIG.

[Step S4]
When the voice recognition unit 40B receives the keyword for illuminating the irradiation light B, the voice recognition unit 40B sends an instruction to the lighting control unit 124 to turn off the light emitting unit 30 . The light emitting unit 30 is turned off according to an instruction from the lighting control unit 124 .

[Step S5]
Irradiation light B is emitted from the irradiation field illumination unit 22 . During irradiation with the irradiation light B, it is preferable for the operator to say a keyword such as "irradiate X-rays" to cause irradiation of X-rays. In this case, the speech reception unit 40A receives the voice of the operator, and the speech recognition unit 40B recognizes the keyword for X-ray irradiation and sends an X-ray irradiation instruction to the high voltage generation unit 110, as in step S1.

[Step S6]
The lighting control unit 124 determines whether or not the lighting time of the irradiation field lighting has passed a predetermined lighting time stored in advance in the storage unit 114 . The irradiation field illumination unit 22 continues to be illuminated until the irradiation field illumination illumination time reaches a predetermined illumination time, and when the predetermined illumination time has elapsed, the operation of the X-ray diagnostic apparatus 1A proceeds to step S7.

[Step S7]
The illumination control unit 124 turns off the irradiation field illumination unit 22 . After the irradiation field illumination unit 22 is turned off, the operation of the X-ray diagnostic apparatus 1A returns to step S2, and the light emission unit 30 is turned on again.

[Step S8]
While the light-emitting unit 30 is on, the speech recognition unit 40B determines whether or not a keyword for turning off the light-emitting unit 30 (such as "Turn off the light at hand") has been received by the speech reception unit 40A. When the speech recognition unit 40B recognizes the keyword for turning off the light emitting unit 30, the voice recognition unit 40B sends an instruction to light the light emitting unit 30 to the illumination control unit 124. FIG. As a result, the switch of the light emitting section 30 is turned off. When the light emitting unit 30 is switched off, the operation of the X-ray diagnostic apparatus 1A proceeds to step S9. When the switch of the light emitting unit 30 remains on, the operation of the X-ray diagnostic apparatus 1A returns to step S2, and the hand continues to be illuminated.

[Step S9]
The lighting control unit 124 turns off the light emitting unit 30 .

In this manner, the operation of causing the irradiation field illumination unit 22 and the light emitting unit 30 to emit light in conjunction with each other is performed according to the embodiment 1A. In Embodiment 1A, the operator can easily recognize the irradiation field by stopping the emission of the hand light when the irradiation light is emitted. If the X-ray shielding box 23 is provided with a cross-shaped transparent plate 235, the edges of the cross-shaped transparent plate 235 stand out, making it easier for the operator to recognize the irradiation field.

In Embodiment 1A, since the non-contact operation unit accepts voice input, the operator can switch on/off the light emitting unit, irradiation field illumination, or X-ray tube device without touching the operation unit. can. Therefore, even during surgery, the operator can input instructions to control the operation of the X-ray diagnostic apparatus 1 while keeping his/her hands clean.

<Modified example of operation part>
The operation unit 40 is not limited to the configuration that accepts input by voice recognition as described above, and accepts non-contact input using an optical sensor capable of recognizing user actions, a biosensor such as a capacitance sensor, an ultrasonic sensor, or the like. It may be configured to accept.

Further, in the X-ray diagnostic apparatus 1A, the light emitting unit 30 may be switched on and off by an operation unit such as a push button operated by hand, or an operation unit for irradiating irradiation light and a hand light irradiation unit may be used. The operation unit for performing may have a separate configuration.

Furthermore, the X-ray diagnostic apparatus 1A may be provided with a foot switch 405 as an operation unit as shown in FIG. When the foot switch 405 is stepped on by the operator while the light emitting section 30 is off, the light emitting section 30 is turned on, and when the foot switch 405 is stepped on while the light emitting section 30 is on, the light emitting section 30 is turned off.

When the X-ray diagnostic apparatus 1A is provided with the foot switch 405, the apparatus control section 120 includes a foot switch detection section 405B that detects that the foot switch has been operated and sends an instruction to turn on or off the light emitting section 30. is provided. When the footswitch 405 is stepped on, it sends a signal to the footswitch detector 405B. Upon receiving that the foot switch 405 has been pressed, the foot switch detection unit 405B sends an instruction to the lighting control unit 124 to turn on or off the light emitting unit 30 .

By using the foot switch 405, the operator can input instructions to control the operation of the X-ray diagnostic apparatus 1 while keeping his/her hands clean, as in the case of using a non-contact operation unit.

It should be noted that the lighting of the irradiation field illumination unit 22 and the lighting of the light emitting unit 30 may not be interlocked. When the irradiation field illumination unit 22 and the light emitting unit 30 are not turned on in conjunction with each other, the light emitting unit 30 is turned off by the operator's input through the operating unit, as shown in FIG. 9 . Specifically, when the operator operates the operation unit 40 to turn on the switch (step S1), the light emitting unit 30 lights up to illuminate the hand (step S2). The hand is illuminated until the operator operates the operation unit 40 to turn off the switch, and when the operator operates the operation unit 40 to turn off the switch (step S8), the light emitting unit 30 is extinguished (step S9). ).

<Embodiment 2>
Hereinafter, the X-ray diagnostic apparatus 1B of the second embodiment will be described with respect to the differences from the X-ray diagnostic apparatus 1A of the first embodiment. The X-ray diagnostic apparatus 1B of the second embodiment differs from the X-ray diagnostic apparatus 1A of the first embodiment in that at least one of the illuminance and color temperature of the hand light can be adjusted by the operator's operation. A case in which both the illuminance and color temperature of the light at hand can be adjusted by the operator's operation will be described below.

As shown in FIG. 10, the X-ray diagnostic apparatus 1B of Embodiment 2 includes an illumination adjuster 60 that is connected to the light emitting section 30 and receives an input for setting the illuminance of the entire light emitting section 30. FIG. Illumination adjuster 60 may have a known configuration, and includes, for example, operation knob 61 for adjusting the illuminance setting of the light at hand.

In the X-ray diagnostic apparatus 1B, the plurality of light emitting units 30 are configured to emit light of different color temperatures and to change the illuminance of each. For example, when the X-ray diagnostic apparatus 1B includes two light emitting units 30A and 30B, the light emitting units 30A emit bluish white light and the light emitting unit 30B emits reddish light. Emit light of different color temperatures. The adjusting unit 122 changes the illuminance of the hand light emitted from the light emitting units 30A and 30B, respectively, so that the illuminance and color light of the entire light emitting unit 30, which is the sum of the light emitted from the light emitting units 30A and 30B, is adjusted. Be changed.

In the X-ray diagnostic apparatus 1B, as shown in the block diagram of FIG. 11, in addition to the voice recognition section 40B, the apparatus control section 120 includes an adjustment section 60B that controls the illuminance of each light emitting section 30 according to the input illuminance setting. It has

When the operator turns the operation knob 61 of the illumination adjuster 60 to set the illuminance of the light emitting unit 30, the illumination adjuster 60 receives an input for setting the illuminance of the light at hand, and transmits the received input as a signal to the device control unit 120. Send. The adjustment section 60B of the device control section 120 instructs the illumination control section 124 on the intensity of the light emitted from each light emitting section 30 based on the signal received from the illumination adjuster 60 . The illumination control unit 124 controls the intensity of the light emitted from each light emitting unit 30 based on the instruction to set the illuminance.

For example, when the operator sets the illuminance of the hand light to be low, the illumination control unit 124 sets the intensity of the bluish-white light emitted by the light emitting unit 30A to be weaker than the intensity of the red light emitted by the light emitting unit 30B. As a result, the illuminance of the entire light emitting unit 30 is lowered and the color temperature is lowered.

Since the operation of the X-ray diagnostic apparatus 1B of Embodiment 2 is the same as that of the X-ray diagnostic apparatus 1A of Embodiment 1, description thereof will be omitted.

As described above, in the X-ray diagnostic apparatus of Embodiment 2, the operator can adjust the state of the light at hand to the desired color temperature and illuminance.

When the hand light has a high color temperature, it is usually easier for the operator to see the hand where the procedure is performed, but the operator's eyes tend to get tired when the operation lasts for a long time. On the other hand, light with a low color temperature reduces the visibility of the operator's hands, but can reduce the burden on the operator's eyes. Since the X-ray diagnostic apparatus of Embodiment 2 can adjust the color temperature of the light at hand, the operator can select the illuminance of the light at hand required for the procedure and the color temperature of the light at hand that is less burdensome to the eyes.

In addition, in the X-ray diagnostic apparatus of Embodiment 2, since the color temperature of each light emitting unit is different, even if each light emitting unit itself does not have a function of adjusting the color light, the combination of illuminance of each light emitting unit is possible. By changing , the color temperature of the light at hand can be changed.

The number of light emitting units provided in the X-ray diagnostic apparatus is not limited to two, and the light colors of all the light emitting units may not be different. When controlling the color temperature of the light emitted from all the light emitting units, the X-ray diagnostic apparatus may be provided with two or more light emitting units with different color temperatures, and the light emitting units with the same color temperature may be included. may be Moreover, when controlling only the illuminance of the entire hand light, the light color of each light emitting unit may be the same.

<Embodiment 3>
The X-ray diagnostic apparatus 1C of Embodiment 3 will be described below. In the X-ray diagnostic apparatus 1C of Embodiment 3, when the operator selects and inputs the type of procedure from the operation UI, the device control unit 120 adjusts the illuminance and color temperature of the hand light according to the selected procedure type. It is a modifiable configuration.

When a device with a dark display screen, such as an ultrasonic diagnostic device, is used together with an X-ray diagnostic device at the time of examination, the examination is performed by dimming the lighting in the room according to the dark screen. In that case, it is preferable to set the light at hand of the X-ray diagnostic apparatus to be dark according to the brightness of the room in order to reduce the strain on the eyes of the operator who performs the procedure. Moreover, in the case of a procedure performed in a bright room, it is preferable that the hand light is set brightly according to the brightness of the surroundings so that the operator can easily see the hand. As described above, the illuminance of the hand light that makes it easier for the operator to perform the procedure differs depending on the type of procedure using the X-ray diagnostic apparatus.

In the X-ray diagnostic apparatus 1C of Embodiment 3, similarly to the X-ray diagnostic apparatus 1B of Embodiment 2, the plurality of light emitting units 30 emit light with different color temperatures, and the illuminance of each light emitting unit 30 is controlled. to control the overall brightness and light color. The X-ray diagnostic apparatus 1C of the third embodiment differs from the X-ray diagnostic apparatus 1B of the second embodiment in that when the operator operates the operation UI 122 to select the type of procedure, the intensity of the light emitted by the plurality of light emitting units 30 changes. The illuminance and color temperature of the light at hand, which is the sum of the light emitted from each light emitting unit 30, is changed by being controlled by the illumination control unit 124, respectively.

The apparatus control section 120 of the X-ray diagnostic apparatus 1C includes, as shown in FIG. 12, an adjusting section 122B that controls the illuminance of the light emitting section 30 according to the type of input procedure.

The storage unit 114 of the X-ray diagnostic apparatus 1C stores in advance the type of procedure and the brightness of the light at hand corresponding to the type of procedure. In addition, the storage unit 114 stores in advance the intensity of light emitted from each light-emitting unit for illuminating the hand with an illuminance corresponding to the type of procedure. The operation UI 122 is, for example, a touch panel. As shown in FIG. 13, the display screen of the operation UI 122 includes selection items for the operator to select the type of procedure, a start button 122b and an end button 122c for the operator to press when starting and ending the procedure, and the like. Is displayed.

The operation flow of the X-ray diagnostic apparatus 1C of Embodiment 3 will be described below with reference to FIG.

[Step S31]
When the operator operates the operation UI 122 to select the type of procedure, the operation UI 122 accepts the selection of the procedure by the operator. Hereinafter, the operation of the X-ray diagnostic apparatus 1C will be described assuming that the operator selects "X-ray examination" from among the procedures in this step.

[Step S32]
When the operator presses the start button 112b of the operation UI 122, X-ray examination is started.

[Step S33]
The adjustment unit 122B determines whether or not the selected procedure is a procedure of automatically turning on the light emitting unit. For example, when the selected procedure is performed in a dark room, it is preferable that the X-ray diagnostic apparatus 1C automatically turns on the light-emitting unit in order to illuminate the hands of the operator. For example, in a procedure such as Percutaneous Transhepatic Cholangio Drainage (PTCD), which is performed while viewing a dark monitor of an ultrasonic diagnostic apparatus in a darkened room, the light emitting unit 30 automatically lights up, The operator can easily see both the monitor and the operator's hand.

On the other hand, if the selected procedure is endoscopic retrograde cholangiopancreatography (ERCP), which is performed in a bright room, the operator should be able to see the operator's hand sufficiently even if the operator's hand is not illuminated. Since it can be visually confirmed, the light emitting unit 30 does not have to be turned on automatically.

[Step S34]
The adjustment unit 122B sends an instruction to the illumination control unit 124 so as to light the light emitting unit 30 with an illuminance corresponding to the type of procedure selected. The light emitting unit 30 lights up according to the instruction from the illumination control unit 124 . Specifically, the adjustment unit 122B adjusts the combination of the selected procedure type (here, X-ray examination) and the illuminance of the hand light, and the light emitted by each light emitting unit to make the hand light the brightness. The intensity is read out from storage unit 114 .

The adjustment unit 122B determines the intensity of light emitted from each light emitting unit 30 and transmits information on the intensity of light from each light emitting unit 30 to the lighting control unit 124 . The illumination control unit 124 controls the intensity of light emitted by each light emitting unit 30 based on the information on the intensity of light of each light emitting unit 30 received from the adjustment unit 122B.

[Step S35]
The adjustment unit 122B determines whether or not the end button 112c of the operation UI 122 has been pressed by the operator. The light emitting unit 30 continues to light until the end button 112c is pressed by the operator. When the operator presses the end button 112c, the operation of the X-ray diagnostic apparatus 1C proceeds to step S36.

[Step S36]
The X-ray examination by the X-ray diagnostic apparatus 1C ends.

[Step S37]
The adjuster 122B sends an instruction to the illumination controller 124 to turn off the light emitter 30 . Each light emitting unit 30 is extinguished, and the operation of the X-ray diagnostic apparatus ends.

As described above, the X-ray diagnostic apparatus 1C of Embodiment 3 can change the illuminance of the hand light according to the procedure. Further, in the X-ray diagnostic apparatus 1C, the operator does not need to turn on/off the light at hand, and the light emitting unit 30 is turned on or off at the timing according to the type of procedure.

It should be noted that if the adjustment unit 122B determines in step S33 that the selected procedure is a procedure that does not automatically turn on, the procedure may be performed in a state where the hand light is not illuminated. In this case, the operator may use an operation unit such as a push button to turn on/off the hand light at the desired timing.

<Embodiment 4>
The X-ray diagnostic apparatus 1D of Embodiment 4 will be described below. The X-ray diagnostic apparatus 1D of Embodiment 4 includes a temperature sensor 80 that detects ambient temperature, and is configured to turn off the light emitting unit when the temperature detected by the temperature sensor 80 exceeds a predetermined value.

In the X-ray diagnostic apparatus 1D, the temperature sensor 80 is arranged in the upper part of the X-ray shielding box 23 at a position that does not block the passage of X-rays, as shown in FIG. 15, for example.

The temperature of the X-ray tube provided in the X-ray tube device 104 normally rises to nearly 70° C. during X-ray irradiation. In addition, the light emitting unit 30 emits heat when lit as described above. When the X-ray diagnostic apparatus 1D is used, the temperature inside the X-ray diaphragm device 200 tends to rise due to the heat generated by the X-ray tube and the light emitting section 30 . When the temperature inside the X-ray diaphragm device 200 rises, problems such as shortening the life of the light emitting unit 30 may occur.

As shown in FIG. 16, the X-ray diagnostic apparatus 1D instructs the illumination control unit 124 to turn off the light emitting unit 30 when the temperature inside the X-ray diaphragm device 200 detected by the temperature sensor 80 exceeds a predetermined value. It is provided with an adjustment unit 80B for sending.

Further, in the X-ray diagnostic apparatus 1D of the fourth embodiment, the plurality of light emitting units 30 emit light with different color temperatures, similarly to the X-ray diagnostic apparatus 1B of the second embodiment. When the temperature inside the X-ray diaphragm device 200 exceeds a predetermined value, the brightness of the light at hand is controlled by the illumination control unit 124, and the illuminance of the light at hand, which is the sum of the light emitted from each light emitting unit 30, is changed. be done.

The operation flow of the X-ray diagnostic apparatus 1D of Embodiment 4 will be described below with reference to FIG. In the operation flow of the X-ray diagnostic apparatus 1D of Embodiment 4, the operations of steps S1, S2, S8 and S9 are the same as those of the X-ray diagnostic apparatus 1A, so detailed description of these steps is omitted. do.

[Steps S1 and S2]
When the operation of the X-ray diagnostic apparatus 1D is started, the apparatus control section 120 determines whether or not the operating section 40 has received the operator's operation, that is, whether or not the switch of the light emitting section 30 has been turned on. When the switch of the light emitting section 30 is turned on, the light emitting section 30 lights up.

[Step S43]
While the light emitting unit 30 is on, the temperature sensor 80 detects the ambient temperature and transmits information on the detected temperature to the adjusting unit 80B.

[Step S44]
The adjustment unit 80 receives temperature information detected by the temperature sensor 80 and determines whether the temperature exceeds a predetermined value or is below a predetermined value. When the temperature detected by the temperature sensor 80 is equal to or lower than the predetermined value, the light emission of the light emitting unit 30 continues, and the operation of the X-ray diagnostic apparatus 1D proceeds to step S45. When the temperature detected by the temperature sensor 80 exceeds the predetermined value, the operation of the X-ray diagnostic apparatus 1D proceeds to step S46.

[Step S45]
The light emitting unit 30 continues to be lit.

[Step S46]
The adjustment unit 80 sends an instruction to the lighting control unit 124 to turn off the light emitting unit 30 . The light emitting unit 30 is turned off according to an instruction from the lighting control unit 124 .

[Steps S8 and S9]
When the switch of the light emitting unit 30 is turned off while the light emitting unit 30 is lit, the illumination control unit 124 turns off the light emitting unit 30 . When the switch of the light emitting unit 30 remains on, the operation of the X-ray diagnostic apparatus 1A returns to step S2, and the hand continues to be illuminated.

As described above, the X-ray diagnostic apparatus 1D according to the fourth embodiment suppresses the temperature rise in the X-ray diaphragm device 200 by turning off the light emitting unit 30 when the temperature in the X-ray diaphragm device 200 exceeds a predetermined value. Therefore, deterioration of each part in the X-ray diaphragm device 200 can be suppressed. In addition, in the X-ray diagnostic apparatus 1D, the light emitting unit 30 automatically turns off when the temperature rises.

In addition, since the X-ray diagnostic apparatus 1D has the temperature sensor located above the X-ray diaphragm, which is close to the X-ray tube and tends to become hot, it is easy to detect temperature changes in the X-ray diaphragm.

Note that the X-ray diagnostic apparatus 1D does not turn off the light emitting unit 30 when the temperature inside the X-ray diaphragm device 200 exceeds a predetermined value, but turns off the light emitting unit 30 according to the temperature detected by the temperature sensor 80. The configuration may be such that the illuminance of the light emitting unit 30 is lowered so as to suppress heat generation. In this case, the illumination of the light emitting unit 30 can be lowered to suppress heat generation, and the light can continue to be lit for a long time.

Further, the X-ray diagnostic apparatus 1D is not limited to the configuration that automatically turns off the light emitting unit 30 or lowers the illuminance when the temperature inside the X-ray diaphragm device 200 exceeds a predetermined value. For example, the X-ray diagnostic apparatus 1D may ask the operator whether the state of the light emitting unit 30 may be changed when the temperature inside the X-ray diaphragm device 200 exceeds a predetermined value. For example, the X-ray diagnostic apparatus 1D displays sentences such as "Do you want to turn off the light?" The state of the light emitting unit 30 may be changed after receiving an input such as pressing .

The temperature sensor may be provided around the light emitting unit 30 of the X-ray shielding box 23, and the X-ray diagnostic apparatus 1D detects the temperature around the temperature sensor by the heat generated when the light emitting unit 30 is lit. When the value is exceeded, the illuminance of the hand light may be lowered.

<Modification>
An X-ray diagnostic apparatus that is a modification of the X-ray diagnostic apparatus 1D of Embodiment 4 will be briefly described with reference to FIG. The X-ray diagnostic apparatus of the modified example is configured such that after the light emitting unit 30 is turned off because the temperature detected by the temperature sensor 80 exceeds the threshold value, lighting is resumed when the temperature detected by the temperature sensor 80 drops. .

The operation of the X-ray diagnostic apparatus of the modified example differs from the operation of the X-ray diagnostic apparatus 1D of Embodiment 4 described above only in the operations after step S46. Differences in operation between the X-ray diagnostic apparatus of the modified example and the X-ray diagnostic apparatus 1D of the fourth embodiment will be described below.

In the modified X-ray diagnostic apparatus, the temperature sensor 80 continues detecting temperature even after the temperature detected by the temperature sensor 80 exceeds the threshold value and the light emitting unit 30 is turned off in step S46. The adjustment unit 122B determines whether or not the temperature detected by the temperature sensor 80 has dropped below a predetermined value (step S47). The light emitting unit 30 remains turned off until the temperature drops to a predetermined value. If the temperature has dropped below the predetermined value (step S47: YES), the operation of the X-ray diagnostic apparatus returns to step S2, and the light emitting section 30 lights up again.

In this way, in the X-ray diagnostic apparatus according to the modification of the fourth embodiment, the light emitting unit 30, which has been turned off once due to its high temperature, can be turned on again when the temperature drops to a predetermined value. Thereby, the on/off of the light emitting unit 30 can be controlled according to the temperature detected by the temperature sensor 80 .

In Embodiments 1 to 4 described above, the X-ray shielding layer 231 and the heat dissipation layer 232 are configured to be bonded with an adhesive. It may be bonded, or it may have other layers in addition to the X-ray shielding layer 231 and heat dissipation layer 232 .

In addition to the light emitting unit 30 arranged in the X-ray shielding box, the X-ray diagnostic apparatus 1 includes a light emitting unit 30 that illuminates the hand of the operator, such as the support 50, other than the X-ray diaphragm device 200. good too. In the X-ray diagnostic apparatus, a curtain (armor cover) made of lead or the like that surrounds the X-ray passage and prevents the X-ray from leaking to the outside hangs down from the X-ray tube device 104 in order to suppress exposure of the operator. Sometimes. When the armor cover is hung over the X-ray tube device 104, even if the light emitting unit 30 is provided on the support 50 or the like of the X-ray diagnostic apparatus 1, the light from the light emitting unit 30 is blocked by the armor cover. In the X-ray diagnostic apparatus 1 of this embodiment, the X-ray diaphragm device 200 is provided with the light emitting unit 30 that illuminates the operator's hand, so that the operator's hand can be sufficiently illuminated.

Embodiments 1 to 4 and modifications described above can be combined within a technically consistent range and are included in the present invention.

DESCRIPTION OF SYMBOLS 1... X-ray diagnostic apparatus 21... X-ray aperture blade 22... Radiation field illumination part 23... X-ray shielding box 25... Outer frame part 30... Light emission part , 40... operation part, 50... strut part, 100... subject, 102... bed, 104... X-ray tube device, 110... high voltage generation part, 112... X-ray detection unit 114 storage unit 116 image processing unit 118 display unit 120 device control unit 122 operation UI 123 X-ray control unit , 124... Illumination control unit, 200... X-ray diaphragm device

Claims (15)

an X-ray tube device that emits X-rays toward a subject;
an X-ray diaphragm device comprising X-ray diaphragm blades for limiting an irradiation area of X-rays irradiated to a subject;
The X-ray diaphragm device
an irradiation field illumination unit that emits irradiation light for illuminating an irradiation range of X-rays;
an X-ray shielding box housing the X-ray diaphragm blades and the irradiation field illumination unit and having an opening serving as a passage for the X-rays and the irradiation light;
a light emitting unit arranged on the outer peripheral surface of the X-ray shielding box on the opening side;
with
The X-ray shielding box is
1. An X-ray diagnostic apparatus having an X-ray shielding function for shielding X-rays and a heat dissipation function for dissipating heat generated by said light emitting unit . an X-ray tube device that emits X-rays toward a subject;
an X-ray diaphragm device comprising X-ray diaphragm blades for limiting an irradiation area of X-rays irradiated to a subject;
The X-ray diaphragm device
an irradiation field illumination unit that emits irradiation light for illuminating an irradiation range of X-rays;
an X-ray shielding box housing the X-ray diaphragm blades and the irradiation field illumination unit and having an opening serving as a passage for the X-rays and the irradiation light;
a light emitting unit arranged on the outer peripheral surface of the X-ray shielding box on the opening side;
with
The X-ray shielding box has a multilayer structure of an X-ray shielding layer that shields X-rays and a heat dissipation layer that is disposed around the X-ray shielding layer and has higher heat dissipation than the X-ray shielding layer. An X-ray diagnostic apparatus characterized by: 3. An X-ray diagnostic apparatus according to claim 2 , wherein said X-ray shielding layer is made of lead and said heat dissipation layer is made of aluminum. 4. The X-ray diagnostic apparatus according to claim 3 , wherein an irregular reflection prevention layer is formed on the surface of said aluminum. 3. The X-ray diagnostic apparatus according to claim 1 , wherein the light emitting units are provided at a plurality of locations on the outer peripheral surface of the X-ray shielding box on the opening side, and illuminate the subject from a plurality of directions. further comprising a lighting control unit for controlling lighting states of the irradiation field lighting unit and the light emitting unit;
3. The X-ray diagnostic apparatus according to claim 1, wherein the illumination control unit turns off the light emitting unit when the irradiation field illumination unit is turned on. a lighting control unit that controls the lighting state of the light emitting unit;
further comprising an adjuster that receives input of illuminance information of the light emitting unit;
3. The X-ray diagnostic apparatus according to claim 1, wherein the illumination control unit adjusts the illuminance of the light emitting unit based on the input received by the adjuster. A plurality of light emitting units having different color temperatures are provided as the light emitting units, and the illumination control unit adjusts the illuminance of each of the plurality of light emitting units based on the input received by the adjuster, thereby controlling the light emitted by the light emitting units. 8. The X-ray diagnostic apparatus according to claim 7 , wherein the color temperature is adjusted. a lighting control unit that controls the lighting state of the light emitting unit;
a memory storing the illuminance of the light emitting unit corresponding to the type of procedure performed on the subject;
An input unit that receives input of the type of procedure,
When the input unit receives an input of the type of procedure, the illumination control unit reads out the illuminance of the light emitting unit corresponding to the type of procedure from the memory and adjusts the illuminance of the light emitting unit. 3. The X-ray diagnostic apparatus according to claim 1 or 2 . 10. The X-ray diagnostic apparatus according to claim 9 , wherein the illumination control unit turns on the light emitting unit when the procedure is started, and turns off the light emitting unit when the procedure is finished. a lighting control unit that controls the lighting state of the light emitting unit;
an operation unit that receives an input of a non-contact instruction for the lighting state of the light emitting unit;
3. The X-ray diagnostic apparatus according to claim 1, wherein the illumination control section controls the lighting state of the light emitting section based on the input received by the operation section. The operation unit includes a voice recognition element that receives an input by the voice surrounding the subject, and the illumination control unit controls the lighting state of the light emitting unit based on the voice received by the voice recognition element. 12. X-ray diagnostic apparatus according to claim 11 . a lighting control unit that controls the lighting state of the light emitting unit;
3. The apparatus according to claim 1, further comprising a footswitch for receiving an input by a user's foot, wherein the lighting control section controls the lighting state of the light emitting section based on the input received by the footswitch. of X-ray diagnostic equipment. an X-ray tube device that emits X-rays toward a subject;
an X-ray diaphragm device comprising X-ray diaphragm blades for limiting an irradiation area of X-rays irradiated to a subject;
The X-ray diaphragm device
an irradiation field illumination unit that emits irradiation light for illuminating an irradiation range of X-rays;
an X-ray shielding box housing the X-ray diaphragm blades and the irradiation field illumination unit and having an opening serving as a passage for the X-rays and the irradiation light;
a light emitting unit arranged on the outer peripheral surface of the X-ray shielding box on the opening side;
a lighting control unit that controls the lighting state of the light emitting unit;
a temperature sensor that detects the ambient temperature,
The X-ray diagnostic apparatus according to claim 1, wherein the illumination control section turns off the light emitting section when the temperature sensor detects a temperature equal to or higher than a predetermined temperature. an X-ray tube device that emits X-rays toward a subject;
an X-ray diaphragm device comprising X-ray diaphragm blades for limiting an irradiation area of X-rays irradiated to a subject;
The X-ray diaphragm device
an irradiation field illumination unit that emits irradiation light for illuminating an irradiation range of X-rays;
an X-ray shielding box housing the X-ray diaphragm blades and the irradiation field illumination unit and having an opening serving as a passage for the X-rays and the irradiation light;
a light emitting unit arranged on the outer peripheral surface of the X-ray shielding box on the opening side;
an outer frame portion disposed so as to cover the outer periphery of the X-ray shielding box and the light emitting portion;
An X-ray diagnostic apparatus comprising:

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