JP2021196308A - Radiographic device - Google Patents

Abstract

To provide a radiographic device that can be easily carried without increasing the size of the device and without reducing the total area of various types of substrates.SOLUTION: A radiographic device comprises: a substrate for reading 9 that reads an electric signal related to a radiation image from a radiation detection panel that detects incident radiation as the electric signal; a flexible substrate 10 that connects the radiation detection panel and the substrate for reading 9 with each other; and a housing that accommodates the radiation detection panel, substrate for reading 9, and flexible substrate 10. In a back cover of the housing, concave parts 7 are formed which are depressed in a direction directed toward the radiation detection panel. When seen from a direction of the back cover of the housing, the substrate for reading 9 and flexible substrate 10 are arranged in the other area excluding an area in which the concave parts 7 are formed.SELECTED DRAWING: Figure 4

Description

The present invention relates to a radiographic imaging apparatus that performs imaging using radiation.

Conventionally, an angiography device that detects the intensity distribution of radiation transmitted through a subject and obtains a radiographic image of the subject has been widely and generally used in industrial non-destructive inspection and medical diagnosis. In recent years, a digital radiography apparatus equipped with a radiation detection panel for taking a digital radiological image has been developed, and it has become possible to immediately obtain a radiographic image (radiation image).

In such a radiographic apparatus, a thin and lightweight portable radiographic apparatus, a so-called electronic cassette, has been developed in order to enable rapid imaging of a wide range of a subject. In particular, in recent years, in order to increase portability, wireless type radiography equipment that does not require a cable connection has been developed. Such a wireless type radiographic apparatus has a configuration in which a rechargeable battery, which is a power source for supplying electric power, is built-in or detachable, and has higher portability than conventional ones.

As an example of the radiographing apparatus in consideration of this portability, those described in Patent Document 1 and Patent Document 2 can be mentioned. Specifically, in the radiography apparatus described in Patent Document 1, the internal substrate, the rechargeable battery, and the like are divided and arranged so that the center of gravity of each is substantially the center of the radiography imaging apparatus, so that the stability during carrying is achieved. Is improving. Further, in the radiography apparatus described in Patent Document 2, a recess for gripping is formed on the back surface of the housing, which is located on the opposite side of the incident surface of radiation, so that a finger can easily get caught when lifting or carrying. There is.

Japanese Unexamined Patent Publication No. 2009-104043 JP-A-2017-67564

In the radiological imaging apparatus described in Patent Document 1, the position of the center of gravity is approximately the center of the radiological imaging apparatus to improve portability, but there is no place to put a finger on the housing. Therefore, in the radiological imaging apparatus described in Patent Document 1, there is a risk that the radiological imaging apparatus may be dropped when it is lifted or carried.

Further, in the radiography apparatus described in Patent Document 2, a recess for gripping is formed in the housing in order to cope with the above-mentioned problem of Patent Document 1. However, in the radiography apparatus described in Patent Document 2, for example, when the recess for gripping is formed deep enough to be in contact with the support base that supports the radiation detection panel, various substrates are arranged between the support base and the recess. Therefore, there is a limitation that it is difficult to form a recess for gripping at a position sufficiently close to the outer edge of the housing unless various substrates are made smaller. As a method of improving the portability of the radiography apparatus without downsizing various substrates, for example, providing a handle on the outside of the housing or extending the housing to form a deep recess is provided. However, this is not preferable because it leads to an increase in the size of the device.

The present invention has been made in view of such problems, and it is intended to provide an easy-to-carry radiographic apparatus without increasing the size of the apparatus and reducing the total area of various substrates. The purpose.

The radiography apparatus of the present invention has a radiation detection panel that detects incident radiation as an electric signal related to a radiation image, a support base that supports the radiation detection panel, and a drive substrate for driving the radiation detection panel. And at least one of the reading substrates for reading the electrical signal from the radiation detection panel, a flexible substrate connecting the radiation detection panel and the at least one substrate, the radiation detection panel, and the support base. A housing for accommodating the at least one substrate and the flexible substrate, at a position facing the top cover with the radiation detection panel sandwiched between the top cover arranged on the side where the radiation is incident. It has a housing configured including an installed back cover, a frame arranged between the top cover and the back cover, and the back cover has a direction toward the radiation detection panel. The recessed recess is formed in the above, and the at least one substrate and the flexible substrate are arranged in other regions excluding the region where the recess is formed when viewed from the direction of the back cover.

According to the present invention, it is possible to provide a radiography apparatus that is easy to carry without increasing the size of the apparatus and reducing the total area of various substrates.

It is a figure which shows an example of the schematic structure of the radiological imaging system including the radiographic imaging apparatus according to the first embodiment of the present invention. It is a figure which shows an example of the appearance of the radiographing apparatus which concerns on 1st Embodiment of this invention. It is a figure which shows an example of the internal structure in the AA direction of FIG. 2A in the radiographing apparatus which concerns on 1st Embodiment of this invention. It is sectional drawing which shows an example of the internal structure in the BB direction of FIG. 2B in the radiographing apparatus which concerns on 1st Embodiment of this invention. It is a figure which shows 1st Embodiment of this invention and shows an example of the schematic structure of the sensor substrate shown in FIG. It is sectional drawing which shows an example of the internal structure in the BB direction of FIG. 2B in the radiographing apparatus which concerns on 2nd Embodiment of this invention. It is a figure which shows the 2nd Embodiment of this invention and shows an example of the schematic structure of the sensor substrate shown in FIG. It is sectional drawing which shows an example of the internal structure in the BB direction of FIG. 2B in the radiographing apparatus which concerns on 3rd Embodiment of this invention. It is sectional drawing which shows an example of the internal structure in the BB direction of FIG. 2B in the radiographing apparatus which concerns on 4th Embodiment of this invention. It is sectional drawing which shows an example of the internal structure in the BB direction of FIG. 2B in the radiographing apparatus which concerns on 5th Embodiment of this invention.

Hereinafter, embodiments (embodiments) for carrying out the present invention will be described with reference to the drawings.

(First Embodiment)
First, the first embodiment of the present invention will be described.

FIG. 1 is a diagram showing an example of a schematic configuration of a radiography imaging system 200 including a radiography imaging apparatus 100 according to the first embodiment of the present invention.

As shown in FIG. 1, the radiography system 200 includes a radiography apparatus 100, a radioactivity source 210, a signal processing unit 230, and a display unit 240. At this time, in the example shown in FIG. 1, the radiographing apparatus 100 and the radiation source 210 are arranged in the radiation room, and the signal processing unit 230 and the display unit 240 are arranged in the control room.

Radiation 211 such as X-rays generated by the radiation source 210 passes through the affected portion (chest 221) of the subject 220 such as a patient and is incident on the radiographing apparatus 100. The radiation 211 incident on the radiographing apparatus 100 contains information inside the subject 220. In the radiography apparatus 100, the radiation 211 incident on the internal radiation detection panel is detected as an electric signal related to the radiation image. After that, this electric signal is converted into a digital signal, image-processed by the signal processing unit 230, and displayed as a radiographic image on the display unit 240, whereby the inside of the subject 220 can be observed.

FIG. 2 is a diagram showing an example of the appearance of the radiography apparatus 100 according to the first embodiment of the present invention. Specifically, FIG. 2A is a top view of the radiation photographing apparatus 100 as viewed from the side of the top cover 6a arranged on the upper surface on which the radiation 211 is incident. Further, FIG. 2B is a side view seen from the side surface side of the radiological imaging apparatus 100. FIG. 2C is a bottom view of the radiographing apparatus 100 as viewed from the side of the back cover 6b arranged on the lower surface opposite to the top cover 6a. As shown in FIG. 2 (c), the back cover 6b is formed with a plurality of recesses 7 for gripping.

FIG. 3 is a diagram showing an example of the internal configuration of the radiographing apparatus 100 according to the first embodiment of the present invention in the direction AA of FIG. 2A. FIG. 3 illustrates an XYZ coordinate system in which the incident direction of the radiation 211 is the Z direction, and the directions orthogonal to the Z direction and orthogonal to each other are the X direction and the Y direction.

As shown in FIG. 3, the radiography apparatus 100 includes a radiation detection panel 1, a battery 2, a cushioning material 3, a control substrate 4, a support base 5, and a housing 6.

The radiation detection panel 1 is a component that detects the incident radiation 211 as an electric signal related to a radiation image. As shown in FIG. 3, the radiation detection panel 1 includes a phosphor layer (scintillator layer) 1a, a phosphor protective film 1b, and a sensor substrate 1c. The phosphor layer 1a is a layer that converts the incident radiation 211 into light. The fluorescent material protective film 1b is a layer for protecting the fluorescent material layer 1a, and is formed of, for example, a material having low moisture permeability. The sensor substrate 1c is a substrate in which a plurality of photoelectric conversion elements (sensors) that convert light generated in the phosphor layer 1a into electric charges are arranged in a two-dimensional shape (specifically, a matrix shape) on the upper part. Is. As described above, in the example shown in FIG. 3, the radiation detection panel 1 is a so-called indirect conversion type radiation detection panel that converts the radiation 211 incident by the phosphor layer 1a and the photoelectric conversion element into an electric signal related to the radiation image. It has become.

The support base 5 is a component that supports the radiation detection panel 1. Specifically, the support base 5 supports the sensor substrate 1c of the radiation detection panel 1 from the side opposite to the side on which the radiation 211 is incident. It is desirable that the support base 5 is formed of a highly rigid material in order to prevent the radiation detection panel 1 from bending or being damaged.

The battery 2 and the control board 4 are arranged between the support base 5 and the back cover 6b of the housing 6. The battery 2 supplies the necessary power to the electrical components of the radiographing apparatus 100. The control board 4 controls the operation of the radiography apparatus 100 and performs various processes.

The cushioning material 3 is a component for protecting the radiation detection panel 1, and is arranged between the top cover 6a of the housing 6 and the radiation detection panel 1.

The housing 6 is a housing for accommodating each component of the radiography apparatus 100 including a radiation detection panel 1, a battery 2, a cushioning material 3, a control board 4, and a support base 5, and is shown in FIG. As described above, the top cover 6a, the back cover 6b, and the frame 6c are included. The top cover 6a is a part of the housing 6 arranged on the side where the radiation 211 is incident. The back cover 6b is a part of the housing 6 installed at a position facing the top cover 6a (position on the opposite side) with the radiation detection panel 1 sandwiched between them. The frame 6c is a portion between the top cover 6a and the back cover 6b and located on the side surface of the housing 6. Further, in order to improve the portability of the radiography apparatus 100, the back cover 6b is formed with a plurality of recesses 7 for gripping recessed in the direction toward the radiation detection panel 1 (−Z direction). In the present embodiment, in the recess 7, the deepest recessed region inside the housing 6 is in contact with the support base 5. Further, the deepest recessed region inside the housing 6 in the recess 7 is inside the radiation detection panel 1 when viewed from the direction of the back cover 6b (inside the vertical projection of the radiation detection panel 1). ).

FIG. 4 is a cross-sectional view showing an example of the internal configuration of the radiographing apparatus 100 according to the first embodiment of the present invention in the BB direction of FIG. 2 (b). Specifically, FIG. 4 is a plan view (XY plan view) of the radiography apparatus 100 according to the first embodiment when viewed from the direction of the back cover 6b of the housing 6. In FIG. 4, the same components as those shown in FIG. 3 are designated by the same reference numerals, and detailed description thereof will be omitted. Further, FIG. 4 illustrates an XYZ coordinate system corresponding to the XYZ coordinate system shown in FIG.

In addition to the configuration shown in FIG. 3, the radiography apparatus 100 further includes a drive substrate 8, a readout substrate 9, a flexible substrate 10, and a cable 11, as shown in FIG.

The drive substrate 8 inputs a drive signal for driving the radiation detection panel 1 to the radiation detection panel 1 on the back side of the support base 5 via the flexible substrate 10. The drive substrate 8 is arranged near one side (the left side in FIG. 4) of the frame 6c of the housing 6.

The reading substrate 9 reads an electric signal related to a radiation image from the radiation detection panel 1 via the flexible substrate 10. The reading board 9 is divided and arranged in order to avoid the recess 7. Specifically, in the example shown in FIG. 4, the read-out board 9 is divided into two boards and arranged, and the two read-out boards 9 are viewed from the direction of the back cover 6b of the housing 6. A recess 7 is formed between them. At this time, when viewed from the direction of the back cover 6b of the housing 6, the distance from the outermost shape of the frame 6c of the housing 6 to the reading board 9 is from the outermost shape of the frame 6c of the housing 6 to the recess 7. It is larger than the distance of.

The flexible substrate 10 electrically connects the radiation detection panel 1 on the back side of the support base 5 with the drive substrate 8 and the readout substrate 9.

The cable 11 electrically connects the battery 2, the control board 4, the drive board 8, and the read board 9 to each other.

The control board 4 receives an electric signal related to the radiographic image from the readout board 9, and performs a process of generating a radiographic image based on the electric signal. Further, the control board 4 also controls the power supply from the battery 2 and the behavior of the drive board 8 and the read board 9.

Here, in the example shown in FIG. 4, the drive substrate 8, the readout substrate 9, and the flexible substrate exclude the region where the recess 7 is formed when viewed from the direction of the back cover 6b of the housing 6. It is located in the area of.

The recesses 7 are arranged near each side of the frame 6c of the housing 6 in order to improve the portability of the radiography apparatus 100. By arranging the recesses 7 near each side of the frame 6c of the housing 6 in this way, the radiography apparatus 100 can be gripped in various directions, and the radiography apparatus 100 can be easily handled. It makes it easier to take radiographs quickly. Further, in the present embodiment, the recess 7 has at least a part of the deepest recessed region (maximum depth region) inside the housing 6 when viewed from the direction of the back cover 6b of the housing 6. It is assumed that the frame 6c of the body 6 is formed within at least 80 mm from the outermost shape. This is because if the distance from the outermost shape of the housing 6 to the recess 7 is larger than a predetermined distance, it is difficult to hold the radiography apparatus 100 when it is lifted.

FIG. 5 shows a first embodiment of the present invention and is a diagram showing an example of a schematic configuration of the sensor substrate 1c shown in FIG. Note that FIG. 5 also shows a drive substrate 8 and a readout substrate 9.

As shown in FIG. 5, the sensor substrate 1c of the radiation detection panel 1 has a sensor unit 110, a plurality of drive lines Vg1 to Vg4, a plurality of signal lines Sig1 to Sig4, a bias line Bs, and a bias power supply Vs. It is composed of.

The sensor unit 110 is configured by arranging a plurality of pixels 111 in a two-dimensional shape (specifically, a matrix shape). At this time, in the present embodiment, when the incident radiation 211 is defined as the pixel 111 that detects the incident radiation 211 as an electric signal, the pixel 111 includes a phosphor layer 1a that converts the incident radiation 211 into light. Note that FIG. 5 shows an example in which the sensor unit 110 is composed of pixels 111 having 4 rows × 4 columns for the sake of simplicity, but in reality, more pixels 111 are arranged. It is configured. For example, the sensor unit 110 has a dimension of 17 inches and has pixels 111 of about 3000 rows × about 3000 columns.

Each pixel 111 includes conversion elements C11 to C44 and switch elements S11 to S44. The conversion elements C11 to C44 are elements that convert the incident radiation 211 into electric charges that are electric signals, and the switch elements S11 to S44 are elements that output the electric charges accumulated in the respective conversion elements C11 to C44 to the outside. be. The conversion elements C11 to C44 may be a MIS-type photodiode that is arranged on an insulating substrate such as a glass substrate and whose main material is amorphous silicon, or instead, a PIN-type photodiode. There may be. In the present embodiment, an example of configuring the radiation detection panel 1 of the indirect conversion method has been described as described above, but the present invention is not limited to this. For example, a so-called direct conversion type radiation detection panel may be configured that includes pixels 111 that directly detect the incident radiation 211 as an electric signal without providing the phosphor layer 1a or the like. In the case of this direct conversion type radiation detection panel, for example, a conversion element composed of a-Se or the like is adopted as the conversion elements C11 to C44 included in each pixel 111, and the switch elements S11 to S44 included in each pixel 111 are used. Adopts a switch element made of a TFT or the like. Then, for example, when a drive signal is input from the drive board 8 to the drive line Vg1, the switch elements S11 to S14 are in a conductive state. Then, in response to this, the electric charges, which are the electric signals stored in the conversion elements C11 to C14, are input to the reading substrate 9 via the signal lines Sig1 to Sig4 juxtaposed in the row direction, respectively. By performing this for all the conversion elements C11 to C44, the electric signal related to the radiographic image is read out to the reading substrate 9.

Although the flexible substrate 10 of FIG. 4 is arranged between the sensor unit 110 and the readout substrate 9 included in the sensor substrate 1c of the radiation detection panel 1, it is omitted in FIG. In the first embodiment, as shown in FIG. 5, the number (4) of the signal lines Sig1 to Sig4 drawn from the sensor unit 110 is arranged (in the row direction) along the side 112 of the sensor unit 110. It is the same as the number (4) of the pixels 111. That is, the number of pixels in the row direction and the number of signal lines are equal. Further, one flexible substrate is connected to 200 to 250 signal lines.

As described above, in the radiography apparatus 100 according to the first embodiment, the readout substrate 9, the flexible substrate 10, and the drive substrate 8 are viewed from the direction of the back cover 6b of the housing 6. It is arranged in a region other than the region where the recess 7 is formed.
According to such a configuration, it is possible to provide a radiography apparatus 100 that is easy to carry without increasing the size of the apparatus and reducing the total area of various substrates. Further, in the radiography apparatus 100 according to the first embodiment, the recess 7 in contact with the support base 5 is at least within 80 mm from the outermost shape of the frame 6c of the housing 6, and the length of the flexible substrate 10 is required. A structure that is minimal is possible.

In the radiography apparatus 100 according to the first embodiment, an example in which the reading substrate 9 is divided and arranged as shown in FIG. 4 has been described, but the driving substrate 8 is also for reading as needed. It may be divided and arranged in the same manner as the substrate 9.

(Second embodiment)
Next, a second embodiment of the present invention will be described. In the description of the second embodiment described below, the matters common to the above-mentioned first embodiment will be omitted, and the matters different from the above-mentioned first embodiment will be described.

The schematic configuration of the radiography system according to the second embodiment is the same as the schematic configuration of the radiography system 200 according to the first embodiment shown in FIG.

Further, the appearance of the radiological imaging apparatus 100 according to the second embodiment is the same as the appearance of the radiological imaging apparatus 100 according to the first embodiment shown in FIG. Further, in the radiography apparatus 100 according to the second embodiment, the internal configuration of FIG. 2A in the AA direction is shown in FIG. 2A in the radiography imaging apparatus 100 according to the first embodiment shown in FIG. ) Is the same as the internal configuration in the AA direction.

FIG. 6 is a cross-sectional view showing an example of the internal configuration of the radiographing apparatus 100 according to the second embodiment of the present invention in the BB direction of FIG. 2 (b). Specifically, FIG. 6 is a plan view (XY plan view) of the radiography apparatus 100 according to the second embodiment when viewed from the direction of the back cover 6b of the housing 6. In FIG. 6, the same components as those shown in FIG. 4 are designated by the same reference numerals, and detailed description thereof will be omitted. Further, FIG. 6 illustrates the XYZ coordinate system corresponding to the XYZ coordinate system shown in FIG.

For example, because the flexible boards 10 connected to the radiation detection panel 1 are large or large in number, the distance between the flexible boards 10 becomes narrow, and the flexible boards 10 and the reading board 9 are arranged separately. May not be possible. In view of this problem, in the radiography apparatus 100 of the second embodiment shown in FIG. 6, the radiation on the back side of the support base 5 is compared with the radiography apparatus 100 of the first embodiment shown in FIG. The number of flexible substrates 10 connecting the detection panel 1 and the readout substrate 9 is reduced (specifically, halved). Specifically, in FIG. 6, it is assumed that the flexible substrate 10 connecting the radiation detection panel 1 and the readout substrate 9 on the back side of the support base 5 is large, and the number of the flexible substrates 10 is reduced (specifically). In the end, it is halved) to secure a space for forming the recess 7.

In the radiography apparatus 100 of the second embodiment shown in FIG. 6, even if the total area of the readout substrate 9 is increased as compared with the radiography apparatus 100 of the first embodiment shown in FIG. good.

FIG. 7 shows a second embodiment of the present invention and is a diagram showing an example of a schematic configuration of the sensor substrate 1c shown in FIG. Note that FIG. 5 also shows a drive substrate 8 and a readout substrate 9. Further, in FIG. 7, the same reference numerals are given to the configurations similar to those shown in FIG. 5, and detailed description thereof will be omitted.

The flexible substrate 10 of FIG. 6 is arranged in the portion between the sensor unit 110 and the readout substrate 9 included in the sensor substrate 1c of the radiation detection panel 1, but is omitted in FIG. 7. In the second embodiment, the number (two) of the signal lines Sig1 to Sig2 drawn from the sensor unit 110 is the number of pixels 111 arranged (in the row direction) along the side 112 of the sensor unit 110. It is smaller (halved) than (4). In this embodiment, the number of signal lines may be approximately half the number of pixels 111 arranged in the direction in which the signal lines are juxtaposed.

Specifically, the sensor unit 110 of the second embodiment shown in FIG. 7 differs from the sensor unit 110 of the first embodiment shown in FIG. 5, for example, from the conversion elements C11 to C41 in the first row. Two switch elements are connected in series up to Sig1. In the sensor unit 110 of the second embodiment shown in FIG. 7, for example, the information of the conversion element C11 is the signal line Sig1 unless the two drive lines Vg1 and Vg2 sandwiching the conversion element C11 are made conductive at the same time. Will not be sent to.

Below, a specific operation example for acquiring the information of each conversion element C11 to C44 of FIG. 7 is shown.
First, a drive signal is transmitted from the drive board 8 to the drive line Vg1. Then, the information of the conversion elements C12 and C14 in the even column of the first row is transmitted to the signal lines Sig1 and Sig2, respectively. Similarly, for the drive lines Vg2 to Vg4, information on the conversion elements C22 to C42 and C24 to C44 in even-numbered columns can be acquired by transmitting drive signals line by line from the drive board 8.

Next, a drive signal is simultaneously transmitted from the drive substrate 8 to the drive lines Vg5 and Vg4. Then, the information of the conversion elements C41 and C43 in the odd column of the fourth row is transmitted to the signal lines Sig1 and Sig2, respectively. At this time, since the information of the conversion elements C42 and C44 in the even column of the fourth row has already been acquired, the information of different conversion elements is not confused.

After that, by transmitting drive signals from the drive board 8 in the order of drive line Vg4 and drive line Vg3, drive line Vg3 and drive line Vg2, drive line Vg2 and drive line Vg1, conversion elements C11 to C41 in an odd number row are transmitted. And the information of C31 to C34 can be acquired. From the above, even if the signal line is halved, the information of all the conversion elements C11 to C44 can be obtained separately.

In the radiography apparatus 100 according to the second embodiment, as in the first embodiment, the readout substrate 9, the flexible substrate 10, and the drive substrate 8 are viewed from the direction of the back cover 6b of the housing 6. In this case, it is arranged in a region other than the region where the recess 7 is formed.
According to such a configuration, it is possible to provide a radiography apparatus 100 that is easy to carry without increasing the size of the apparatus and reducing the total area of various substrates. Further, in the radiography apparatus 100 according to the second embodiment, as in the first embodiment, the recess 7 in contact with the support base 5 is at least 80 mm or less from the outermost shape of the frame 6c of the housing 6. , It is possible to have a structure in which the length of the flexible substrate 10 is the minimum necessary.

Further, in the radiography apparatus 100 according to the second embodiment, the number of flexible substrates 10 connecting the sensor substrate 1c and the readout substrate 9 is along the side 112 of the sensor substrate 1c to which the flexible substrate 10 is connected. It is smaller than the number of pixels 111 arranged in the above.
According to this configuration, even when the distance between the flexible substrates 10 connected to the readout substrate 9 is narrow, the total area of the readout substrate 9 is not reduced and the length of the flexible substrate 10 is the minimum necessary. A certain structure is possible.

In the radiography apparatus 100 according to the second embodiment, an example in which the reading substrate 9 is divided and arranged as shown in FIG. 6 has been described, but the driving substrate 8 is also for reading as needed. It may be divided and arranged in the same manner as the substrate 9.

(Third embodiment)
Next, a third embodiment of the present invention will be described. In the description of the third embodiment described below, the matters common to the above-mentioned first and second embodiments are omitted, and the matters different from the above-mentioned first and second embodiments are omitted. Will be explained.

The schematic configuration of the radiography system according to the third embodiment is the same as the schematic configuration of the radiography system 200 according to the first embodiment shown in FIG.

Further, the appearance of the radiological imaging apparatus 100 according to the third embodiment is the same as the appearance of the radiological imaging apparatus 100 according to the first embodiment shown in FIG. Further, the internal configuration of the radiographing apparatus 100 according to the third embodiment in the direction AA of FIG. 2A is shown in FIG. 3 in the radiographing apparatus 100 according to the first embodiment. ) Is the same as the internal configuration in the AA direction.

FIG. 8 is a cross-sectional view showing an example of the internal configuration of the radiographing apparatus 100 according to the third embodiment of the present invention in the BB direction of FIG. 2 (b). Specifically, FIG. 8 is a plan view (XY plan view) of the radiography apparatus 100 according to the third embodiment when viewed from the direction of the back cover 6b of the housing 6. In FIG. 8, the same components as those shown in FIGS. 4 and 6 are designated by the same reference numerals, and detailed description thereof will be omitted. Further, FIG. 8 illustrates the XYZ coordinate system corresponding to the XYZ coordinate system shown in FIG.

In the radiography apparatus 100 according to the third embodiment shown in FIG. 8, the readout substrate 9 is further divided into the frame 6c of the housing 6 as compared with the radiography apparatus 100 according to the first embodiment shown in FIG. It differs in that it is also divided and arranged on the opposite side. That is, in the radiography apparatus 100 according to the third embodiment shown in FIG. 8, when viewed from the direction of the back cover 6b of the housing 6, the reading board 9 is divided into four boards at the four corners of the housing 6. Have been placed. Then, in the radiography apparatus 100 according to the third embodiment shown in FIG. 8, when viewed from the direction of the back cover 6b of the housing 6, the recess 7 is adjacent to the four substrates in the readout substrate 9. Two boards (upper left read board 9 and upper right read board 9 shown in FIG. 8, upper right read board 9 and lower right read board 9 shown in FIG. 8, lower right read board 9 shown in FIG. 8). It is formed between the reading board 9 and the reading board 9 at the lower left, and between the reading board 9 at the lower left and the reading board 9) at the upper left shown in FIG.

In the radiography apparatus 100 according to the third embodiment, as in the first embodiment, the readout substrate 9, the flexible substrate 10, and the drive substrate 8 are viewed from the direction of the back cover 6b of the housing 6. In this case, it is arranged in a region other than the region where the recess 7 is formed.
According to such a configuration, it is possible to provide a radiography apparatus 100 that is easy to carry without increasing the size of the apparatus and reducing the total area of various substrates. Further, in the radiography apparatus 100 according to the third embodiment, as in the first embodiment, the recess 7 in contact with the support base 5 is at least 80 mm or less from the outermost shape of the frame 6c of the housing 6. , It is possible to have a structure in which the length of the flexible substrate 10 is the minimum necessary.

Further, in the radiography apparatus 100 according to the third embodiment, the recess 7 is divided into four reading corners of the housing 6 when viewed from the direction of the back cover 6b of the housing 6. It is formed between two adjacent readout substrates 9 of the substrate 9.
According to this configuration, since the space in which the recess 7 can be formed becomes larger as compared with the first embodiment, the recess 7 longer in the direction along the outermost shape of the housing 6 (for example, the recesses located at the top and bottom of FIG. 8). 7) can be formed.

In the radiography apparatus 100 according to the third embodiment, an example in which the reading substrate 9 is divided and arranged as shown in FIG. 8 has been described, but the driving substrate 8 is also for reading as needed. It may be divided and arranged in the same manner as the substrate 9.

(Fourth Embodiment)
Next, a fourth embodiment of the present invention will be described. In the description of the fourth embodiment described below, the matters common to the above-mentioned first to third embodiments are omitted, and the matters different from the above-mentioned first to third embodiments are omitted. Will be explained.

The schematic configuration of the radiography system according to the fourth embodiment is the same as the schematic configuration of the radiography system 200 according to the first embodiment shown in FIG.

Further, the appearance of the radiography apparatus 100 according to the fourth embodiment is substantially the same as the appearance of the radiography apparatus 100 according to the first embodiment shown in FIG. 2, but the recess 7 shown in FIG. 2C is shown. The placement position of is slightly different. Further, in the radiography apparatus 100 according to the fourth embodiment, the internal configuration of FIG. 2A in the AA direction is shown in FIG. 2A in the radiography imaging apparatus 100 according to the first embodiment shown in FIG. ) Is substantially the same as the internal configuration in the AA direction, but the arrangement position of the recess 7 is slightly different.

FIG. 9 is a cross-sectional view showing an example of the internal configuration of the radiographing apparatus 100 according to the fourth embodiment of the present invention in the BB direction of FIG. 2 (b). Specifically, FIG. 9 is a plan view (XY plan view) of the radiography apparatus 100 according to the fourth embodiment when viewed from the direction of the back cover 6b of the housing 6. In FIG. 9, the same components as those shown in FIGS. 4, 6 and 8 are designated by the same reference numerals, and detailed description thereof will be omitted. Further, FIG. 9 illustrates the XYZ coordinate system corresponding to the XYZ coordinate system shown in FIG.

In the radiography apparatus 100 according to the fourth embodiment shown in FIG. 9, the reading substrate 9 and the flexible substrate 10 connected to the reading substrate 9 are housings when viewed from the direction of the back cover 6b of the housing 6. It is unevenly arranged on one side 911 of one side 910 of 6. Then, in the radiography apparatus 100 according to the fourth embodiment shown in FIG. 9, the recess 7 (specifically, the recess 7 in the upper right of FIG. 9) is viewed from the direction of the back cover 6b of the housing 6. In addition, it is formed on the other side 912 on one side 910 of the housing 6 opposite to the one side 911.

In the radiography apparatus 100 according to the fourth embodiment, as in the first embodiment, the readout substrate 9, the flexible substrate 10, and the drive substrate 8 are viewed from the direction of the back cover 6b of the housing 6. In this case, it is arranged in an area other than the area where the recess 7 is formed.
According to such a configuration, it is possible to provide a radiography apparatus 100 that is easy to carry without increasing the size of the apparatus and reducing the total area of various substrates. Further, in the radiography apparatus 100 according to the fourth embodiment, as in the first embodiment, the recess 7 in contact with the support base 5 is at least 80 mm or less from the outermost shape of the frame 6c of the housing 6. , It is possible to have a structure in which the length of the flexible substrate 10 is the minimum necessary.

Further, in the radiography apparatus 100 according to the fourth embodiment, when viewed from the direction of the back cover 6b of the housing 6, the reading board 9 and the flexible board 10 connected to the reading board 9 are placed on one side of the housing 6. It is unevenly arranged on one side 911 of the 910, and the recess 7 is formed on the other side 912 on one side 910 of the housing 6 opposite to the one side 911.
According to such a configuration, the read-out substrate 9 can be arranged in another region where the recess 7 is not formed without dividing the read-out substrate 9 as in the first embodiment described above, so that the read-out substrate 9 is divided and arranged. It is no longer necessary to connect the readout boards 9 to each other. This has the advantage that the number of components of the radiography apparatus 100 can be reduced.

(Fifth Embodiment)
Next, a fifth embodiment of the present invention will be described. In the description of the fifth embodiment described below, the matters common to the above-mentioned first to fourth embodiments are omitted, and the matters different from the above-mentioned first to fourth embodiments are omitted. Will be explained.

The schematic configuration of the radiography system according to the fifth embodiment is the same as the schematic configuration of the radiography system 200 according to the first embodiment shown in FIG.

Further, the appearance of the radiological imaging apparatus 100 according to the fifth embodiment is the same as the appearance of the radiological imaging apparatus 100 according to the first embodiment shown in FIG. Further, the internal configuration of the radiographing apparatus 100 according to the fifth embodiment in the direction AA of FIG. 2A is shown in FIG. 3 in the radiographing apparatus 100 according to the first embodiment. ) Is the same as the internal configuration in the AA direction.

FIG. 10 is a cross-sectional view showing an example of an internal configuration in the BB direction of FIG. 2B in the radiography apparatus 100 according to the fifth embodiment of the present invention. Specifically, FIG. 10 is a plan view (XY plan view) of the radiography apparatus 100 according to the fifth embodiment when viewed from the direction of the back cover 6b of the housing 6. In FIG. 10, the same components as those shown in FIGS. 4, 6, 8 and 9 are designated by the same reference numerals, and detailed description thereof will be omitted. Further, FIG. 10 illustrates an XYZ coordinate system corresponding to the XYZ coordinate system shown in FIG.

In the radiography apparatus 100 according to the fifth embodiment shown in FIG. 10, when viewed from the direction of the back cover 6b of the housing 6, the reading substrate 9 has a notch portion 9a in which a part of the region is cut out. The recess 7 is formed in the notch 9a of the reading substrate 9. In the example shown in FIG. 10, the shape of the notch 9a of the reading substrate 9 is a quadrangle, but the present embodiment is not limited to this.

In the radiography apparatus 100 according to the fifth embodiment, as in the first embodiment, the readout substrate 9, the flexible substrate 10, and the drive substrate 8 are viewed from the direction of the back cover 6b of the housing 6. In this case, it is arranged in a region other than the region where the recess 7 is formed.
According to such a configuration, it is possible to provide a radiography apparatus 100 that is easy to carry without increasing the size of the apparatus and reducing the total area of various substrates. Further, in the radiography apparatus 100 according to the fifth embodiment, as in the first embodiment, the recess 7 in contact with the support base 5 is at least 80 mm or less from the outermost shape of the frame 6c of the housing 6. , It is possible to have a structure in which the length of the flexible substrate 10 is the minimum necessary.

Further, in the radiography apparatus 100 according to the fifth embodiment, the recess 7 is formed in the notch 9a of the reading substrate 9.
According to such a configuration, the read-out substrate 9 can be arranged in another region where the recess 7 is not formed without dividing the read-out substrate 9 as in the first embodiment described above, so that the read-out substrate 9 is divided and arranged. It is no longer necessary to connect the readout boards 9 to each other. This has the advantage that the number of components of the radiography apparatus 100 can be reduced.

In the radiography apparatus 100 according to the fifth embodiment, an example in which the notch 9a is formed in the reading substrate 9 has been described as shown in FIG. 10, but the driving substrate 8 is also read out as necessary. A notch may be formed in the same manner as the substrate 9.

It should be noted that the above-described embodiments of the present invention are merely examples of embodiment of the present invention, and the technical scope of the present invention should not be construed in a limited manner by these. Is. That is, the present invention can be implemented in various forms without departing from the technical idea or its main features.

100: Radiation imaging device, 200: Radiation imaging system, 210: Radiation source, 211: Radiation, 220: Subject, 221: Chest, 230: Signal processing unit, 240: Display unit, 1: Radiation detection panel, 2: Battery, 3: Cushioning material, 4: Control board, 5: Support base, 6: Housing, 7: Recess, 8: Drive board, 9: Read board, 10: Flexible board, 11: Cable

Claims (10)

A radiation detection panel that detects incident radiation as an electrical signal related to a radiation image,
A support base that supports the radiation detection panel and
At least one of the driving board for driving the radiation detection panel and the reading board for reading the electric signal from the radiation detection panel, and
A flexible substrate that connects the radiation detection panel and at least one of the substrates,
A housing for accommodating the radiation detection panel, the support base, the at least one substrate, and the flexible substrate, sandwiching the radiation detection panel between the top cover arranged on the side where the radiation is incident. A housing configured to include a back cover installed at a position facing the top cover and a frame arranged between the top cover and the back cover.
Have,
The back cover is formed with a recess recessed in the direction toward the radiation detection panel.
The radiographing apparatus, wherein the at least one substrate and the flexible substrate are arranged in an area other than the area in which the recess is formed when viewed from the direction of the back cover. The radiography apparatus according to claim 1, wherein the deepest recessed region inside the housing in the recess is in contact with the support base. At least a part of the deepest recessed region inside the housing in the recess is formed within at least 80 mm from the outermost shape of the housing when viewed from the direction of the back cover. The radiography apparatus according to claim 1 or 2. The claim is characterized in that the distance from the outermost shape of the housing to the at least one substrate is larger than the distance from the outermost shape of the housing to the recess when viewed from the direction of the back cover. The radiography apparatus according to any one of 1 to 3. Any of claims 1 to 4, wherein at least a part of the deepest recessed region inside the housing in the recess is inside the radiation detection panel when viewed from the direction of the back cover. The radiological imaging device according to item 1. The radiation detection panel includes a sensor substrate in which a plurality of pixels for detecting the radiation as the electric signal are two-dimensionally arranged.
It has a signal line for reading the electric signal from the pixel, and has a signal line.
The radiation according to any one of claims 1 to 5, wherein the number of the signal lines is substantially half the number of pixels arranged in the direction in which the signal lines are juxtaposed. Shooting device. The at least one substrate is divided into two substrates and arranged.
The radiography apparatus according to any one of claims 1 to 6, wherein the recess is formed between the two substrates when viewed from the direction of the back cover. The at least one board is divided into four boards and arranged at the four corners of the housing when viewed from the direction of the back cover.
The recess according to any one of claims 1 to 6, wherein the recess is formed between two adjacent substrates among the four substrates when viewed from the direction of the back cover. Radiation imaging device. The at least one substrate and the flexible substrate connected to the at least one substrate are arranged unevenly on one side of the housing when viewed from the direction of the back cover.
Any of claims 1 to 6, wherein the recess is formed on the other side of one side of the housing, which is opposite to the one side, when viewed from the direction of the back cover. Or the radiography apparatus according to item 1. The at least one substrate has a notch portion in which a part of the region is cut out when viewed from the direction of the back cover.
The radiography apparatus according to any one of claims 1 to 6, wherein the recess is formed in the notch portion of the at least one substrate when viewed from the direction of the back cover. ..

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