JP2009186389A - Radioactive ray transducer and cradle for radioactive ray transducer - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To be capable of separating a case from a radioactive ray transducer panel to perform washing treatment of the case efficiently in easy and compact configuration. <P>SOLUTION: An electronic cassette 28 includes an external cover 40 consisting of permeable material of radioactive ray X and a casing 41 contained in the external cover 40 removably. Within the casing 41, a grid 42, a radioactive ray transducer panel 44, and a lead plate 46 are deployed in sequence while a battery 50, a cassette controller 52 and a two-way transmission section 54 are contained. The external cover 40 and the casing 41 are removable each other via a lock mechanism 56 and the external cover 40 is separated from the casing 41 to experienced washing processing individually. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a radiation converter that detects radiation that has passed through a subject and converts it into image information, and a radiation converter cradle that performs a process of charging a battery of the radiation converter.

  2. Description of the Related Art In the medical field, radiation image capturing apparatuses that irradiate a subject with radiation and guide the radiation transmitted through the subject to a radiation converter to capture a radiation image are widely used.

  In this case, for example, a device has been developed that uses a semiconductor sensor to convert a radiographic image into an electrical signal and performs image processing on the electrical signal to capture a radiographic image. For example, the radiographic imaging device disclosed in Patent Document 1 includes a basic imaging unit 1 and an extension unit 2 as shown in FIG. A base 3 is supported in the housing main body 1 a of the basic photographing unit 1. On the base 3, a substrate 4a, photoelectric conversion elements 4b arranged two-dimensionally by a semiconductor process, and a fluorescent plate 4c in which a phosphor of a metal compound that emits fluorescence when irradiated with X-rays is applied to a resin plate. An X-ray detection panel 4 is stacked.

JP 2003-248060 A

  By the way, an electronic cassette (corresponding to the above basic imaging unit) used in a medical field may come into contact with a patient as a subject. For this reason, when using an apparatus such as Patent Document 1, the electronic cassette is sterilized each time an image is taken, or the electronic cassette is stored in a disposable case and then taken. It is necessary to take out the electronic cassette and load it into the cassette box.

  However, such an operation is not only very troublesome, but it is extremely uneconomical because a disposable case for storing the electronic cassette is separately required. Therefore, it is conceivable to clean the electronic cassette by heat treatment. However, in the X-ray detection panel 4, when amorphous selenium (a-Se) or the like which is particularly sensitive to temperature is used, the X-ray detection panel 4 is used. Can not be heated. For this reason, it is necessary to employ | adopt a heat insulation structure corresponding to heat processing, and there exists a problem that it is not economical.

  The present invention has been made in view of the above-mentioned problems, and is a radiation conversion capable of separating the casing from the radiation conversion panel and efficiently performing the cleaning process of the casing with a simple and compact configuration. And a cradle for a radiation converter.

  A radiation converter according to the present invention includes a radiation conversion panel that converts radiation transmitted through a subject into image information, a housing that houses the radiation conversion panel, and at least the radiation conversion panel and the housing that are detachable from each other. And a locking mechanism.

  Moreover, it is preferable that an openable / closable lid member is disposed at at least one end of the housing.

  Furthermore, it is preferable that the housing accommodates a battery.

  Furthermore, it is preferable that a plurality of detection elements using amorphous selenium are arranged in the radiation conversion panel.

  The present invention also provides a radiation conversion panel that is driven by a mounted battery and detects radiation transmitted through a subject and converts it into image information, a housing that houses the radiation conversion panel, and at least the radiation conversion panel The present invention relates to a cradle for a radiation converter in which a radiation converter having a lock mechanism that is detachable from each other and the casing is loaded.

  The radiation converter cradle includes a lock release mechanism that releases a lock mechanism of the loaded radiation converter so that the casing can be separated from the radiation converter, and a charging process for the battery of the loaded radiation converter. And a charging processing unit for performing.

  Further, the radiation converter cradle has a lid member opening mechanism that engages with an openable / closable lid member disposed at one end of the housing on the battery side and opens the lid member when the radiation converter is loaded. It is preferable to provide.

  According to the present invention, at least the radiation conversion panel and the housing can be separated only by releasing the lock mechanism. For this reason, it is possible to take out the unlocked casing and subject the casing to heat cleaning treatment, and a special heat insulating structure is not required. Thereby, the cleaning process of the housing can be efficiently performed with a simple and compact configuration.

  Further, according to the present invention, when the charging process of the radiation converter driven by the battery is performed, the locking mechanism of the radiation converter is released. Therefore, in a state where the radiation conversion panel is loaded in the cradle, the casing can be taken out from the cradle and the casing can be individually cleaned.

  FIG. 1 is an explanatory diagram of a radiation image capturing system 20 to which a radiation converter and a cradle for radiation converter of the present invention are applied.

  The radiographic imaging system 20 includes a radiation source 24 that irradiates a patient (subject) 22 with radiation X having a dose according to imaging conditions, a radiation source control device 26 that controls the radiation source 24, and transmission through the patient 22. An electronic cassette 28 (radiation converter) that detects the radiation X, and a cradle 30 that performs charging processing of the electronic cassette 28 and transmits and receives patient information and image information based on the radiation X detected by the electronic cassette 28. The portable information terminal 32 which has an imaging switch of the radiation source 24 and is held by an engineer for checking the state including imaging work, the source control device 26, the cradle 30, and the portable information terminal 32 are controlled. In addition, a console 34 that transmits and receives necessary information is provided.

  The radiation source 24, the radiation source control device 26, and the cradle 30 are disposed in the imaging room 36, and the console 34 is disposed in the operation room 38 outside the imaging room 36. Necessary information is transmitted and received by wireless communication between the radiation source control device 26 and the portable information terminal 32 and between the portable information terminal 32 and the console 34.

  FIG. 2 is an internal configuration diagram of the electronic cassette 28. The electronic cassette 28 includes an outer cover (housing) 40 made of a material that transmits the radiation X, and a casing 41 that is detachably accommodated in the outer cover 40. Inside the casing 41, a grid 42 that removes scattered radiation of the radiation X from the patient 22 from the irradiation surface side irradiated with the radiation X, a radiation conversion panel 44 that detects the radiation X transmitted through the patient 22, and radiation A lead plate 46 that absorbs X backscattered rays is disposed in order.

  Inside the casing 41, a battery 50 that is a power source of the electronic cassette 28, a cassette control unit 52 that drives and controls the radiation conversion panel 44 with electric power supplied from the battery 50, and the radiation conversion panel 44, A transmission / reception unit 54 for receiving patient information for specifying the patient 22 from the cradle 30 by radio communication while receiving a signal including information converted into a signal by radio is accommodated.

  The cassette control unit 52 and the transmission / reception unit 54 are preferably provided with a lead plate or the like on the irradiation surface side of the casing 41 in order to avoid damage due to irradiation with the radiation X. Further, when a detector in which at least the radiation conversion panel 44 and the battery 50 are integrated is used, the casing 41 may be omitted, and the detector may be directly accommodated in the outer cover 40.

  As shown in FIG. 3, the electronic cassette 28 includes a casing 41 for housing the radiation conversion panel 44 and an outer cover 40 (when the casing 41 is not used, at least the radiation conversion panel 44 and the outer cover 40). A lock mechanism 56 that is detachable from each other is provided. The lock mechanism 56 is provided with a pair of claw members 58 formed at one end of the casing 41 and a pair of claw members 58 movably disposed in the outer cover 40 and detachably attached to the claw members 58 via springs 60. The lock claw 62 is provided. Inclined surfaces 58 a and 62 a are formed at the front ends of the claw members 58 and the front ends of the lock claws 62 so as to face each other.

  Protrusions 64 for receiving the springs 60 are formed in the outer cover 40, and the pair of lock claws 62 are attached in a direction away from each other through the elastic force of the springs 60 that abut against the protrusions 64. Be forced. In the outer cover 40, lock release bars 66 that can advance and retreat toward the inclined surface 62 a of each lock claw 62 are arranged on both sides of the casing 41. Although not shown, the lock release bar 66 is held at a predetermined height position and can be advanced and retracted toward the lock claw 62 via a lock release mechanism described later.

  A lid member 68 is provided at one end of the outer cover 40 on the battery 50 side so as to be freely opened and closed. As shown in FIG. 4, the lid member 68 is attached to one end portion side of the outer cover 40 via a hinge 70 so as to be freely opened and closed, and is always attached to the outer cover 40 via the elastic force of the spring 72. The opening 74 on one end side is closed.

  FIG. 5 is a circuit configuration block diagram of the electronic cassette 28 including the radiation conversion panel 44. The radiation conversion panel 44 has a photoelectric conversion layer 76 made of a material such as amorphous selenium (a-Se) that senses the radiation X and generates a charge on an array of thin film transistors (TFTs) 78. After the generated charge is stored in the storage capacitor 80, the TFT 78 is sequentially turned on for each row, and the charge is read as an image signal.

  In FIG. 5, only the connection relationship between one pixel 82 including the photoelectric conversion layer 76 and the storage capacitor 80 and one TFT 78 is shown, and the configuration of the other pixels 82 is omitted. Amorphous selenium must be used within a predetermined temperature range because its structure changes and its function decreases at high temperatures. Therefore, it is preferable to provide a means for cooling the radiation conversion panel 44 in the electronic cassette 28.

  To the TFT 78 connected to each pixel 82, a gate line 84 extending in parallel with the row direction and a signal line 86 extending in parallel with the column direction are connected. Each gate line 84 is connected to a line scanning drive unit 88, and each signal line 86 is connected to a multiplexer 96 constituting a reading circuit.

  Control signals Von and Voff for controlling on / off of the TFTs 78 arranged in the row direction are supplied from the line scanning drive unit 88 to the gate line 84. In this case, the line scan driving unit 88 includes a plurality of switches SW1 for switching the gate lines 84 and an address decoder 90 for outputting a selection signal for selecting one of the switches SW1. An address signal is supplied from the cassette control unit 52 to the address decoder 90.

  The charge held in the storage capacitor 80 of each pixel 82 flows out to the signal line 86 through the TFTs 78 arranged in the column direction. This charge is amplified by the amplifier 92. A multiplexer 96 is connected to the amplifier 92 via a sample and hold circuit 94. The multiplexer 96 includes a plurality of switches SW2 for switching the signal line 86 and an address decoder 98 for outputting a selection signal for selecting one of the switches SW2. An address signal is supplied from the cassette control unit 52 to the address decoder 98. The multiplexer 96 is connected to the A / D converter 100, and the radiation image information converted into a digital signal by the A / D converter 100 is supplied to the cassette control unit 52.

  FIG. 6 is a configuration block diagram of the radiographic image capturing system 20. Connected to the console 34 is a radiology information system (RIS) 102 that comprehensively manages radiographic image information and other information handled in the radiology department in the hospital. A medical information system (HIS) 104 to be managed is connected.

  The control unit 110 of the cradle 30 includes a charging processing unit 112 that performs charging processing of the battery 50 of the electronic cassette 28, and an information read / write processing unit 115 that reads out radiation image information from the electronic cassette 28 while writing patient information to the electronic cassette 28. An information reading unit, an information recording unit), an image memory 117 for storing the read radiation image information, a display unit 116 for displaying necessary information, and a speaker 118 for notifying an engineer of necessary information. The transmission / reception unit 114 that transmits / receives information to / from the electronic cassette 28 and the console 34 is controlled. The transmission / reception unit 114 transmits and receives signals to and from the electronic cassette 28 by wireless communication.

  As shown in FIGS. 7 and 8, the cradle 30 is provided with a cassette loading unit 120 for loading the electronic cassette 28. The cassette loading unit 120 has a lid member opening part (lid member opening mechanism) 122 that cuts out the upper part of the cradle 30 and engages with the lid member 68 of the outer cover 40 to open the lid member 68. A connector part 124b connected to the connector part 124a of the battery 50 is provided on the upper part of the lid member opening part 122, and the connector part 124b is connected to the charging processing part 112.

  The cradle 30 is provided with a lock release mechanism 126 that releases the lock mechanism 56 of the loaded electronic cassette 28 so that the outer cover 40 can be separated from the casing 41. The lock release mechanism 126 has a lock release switch 128 exposed at the top of the cradle 30, and the lock release switch 128 has a rod shape and extends inward of the cradle 30, and Abuts one end.

  The other end of the lock release lever 130 is swingable with the pin 132 as a fulcrum, and a pressing member 134 is engaged with the other end of the lock release lever 130. The pressing member 134 has a substantially U-shaped cross section and is disposed to face the lock release bar 66 provided in the electronic cassette 28.

  As shown in FIG. 6, the control unit 140 of the portable information terminal 32 supplies the imaging signal generated by the imaging switch 142 that drives the radiation source 24 to the radiation source control device 26 via the transmission / reception unit 144. In addition, the control unit 140 displays patient information, imaging conditions, and the like received from the console 34 via the transmission / reception unit 144 on the display unit 146, and notifies the engineer and the like of necessary information by ringing the speaker 148. I do. Note that the portable information terminal 32 includes an operation unit 150 that can set necessary information.

  The console 34 includes a transmission / reception unit 154 that transmits and receives necessary information to and from the control unit 152, the radiation source control device 26, the cradle 30, and the portable information terminal 32, and a patient information setting unit 156 that sets patient information. An imaging condition setting unit 158 that sets imaging conditions necessary for imaging by the radiation source control device 26, an image processing unit 160 that performs image processing on radiation image information supplied from the electronic cassette 28 via the cradle 30, An image memory 162 for storing the processed radiographic image information, a display unit 164 for displaying the radiographic image information and other necessary information, and a speaker 166 for notifying a technician or the like of the necessary information are provided.

  The patient information is information for specifying the patient 22 such as the name, sex, and patient ID number of the patient 22. The imaging conditions are conditions for determining a tube voltage, a tube current, an irradiation time, and the like for irradiating radiation X having an appropriate dose with respect to an imaging region of the patient 22. The conditions such as the method can be mentioned. The imaging ordering information including the patient information and the imaging conditions can be set directly on the console 34 or supplied to the console 34 from the outside via the RIS 102.

  The radiographic image capturing system 20 of the present embodiment is configured as described above, and the operation thereof will be described next.

  When capturing a radiation image of the patient 22, the patient information setting unit 156 of the console 34 is used to set the patient information of the patient 22, and the imaging condition setting unit 158 is used to set necessary imaging conditions. Note that these pieces of information may be acquired from the upstream RIS 102 and HIS 104 via the transmission / reception unit 154.

  The set patient information and imaging conditions are transmitted to the portable information terminal 32 possessed by the technician and displayed on the display unit 146. In this case, the engineer can confirm the patient information and the imaging conditions displayed on the display unit 146 of the portable information terminal 32 and can make a desired imaging preparation.

  Further, the imaging conditions are transmitted to the radiation source control device 26. The radiation source control device 26 sets the tube voltage, tube current, and irradiation time, which are the transmitted imaging conditions, in the radiation source 24 and prepares for imaging.

  Further, the patient information is transmitted to the cradle 30, and the patient information writing process is performed by the information read / write processing unit 115 on the electronic cassette 28 that is being charged. Further, patient information related to the patient 22 recorded in the electronic cassette 28 is displayed on the display unit 116 of the cradle 30.

  Therefore, after confirming the patient information displayed on the display unit 116 of the cradle 30, the engineer takes out the electronic cassette 28 on which the patient information is recorded from the cradle 30, and places the electronic cassette 28 on a desired imaging region of the patient 22. Set.

  After the electronic cassette 28 is set to an appropriate state for the patient 22, the engineer operates the imaging switch 142 of the portable information terminal 32 to capture a radiographic image. When the photographing switch 142 is operated, the control unit 140 of the portable information terminal 32 transmits a photographing start signal to the radiation source control device 26 via the transmission / reception unit 144. The radiation source control device 26 that has received the imaging start signal controls the radiation source 24 according to the imaging conditions supplied in advance from the console 34 and irradiates the patient 22 with the radiation X.

  The radiation X transmitted through the patient 22 is radiated to the radiation conversion panel 44 after the scattered radiation is removed by the grid 42 of the electronic cassette 28, and an electric signal is transmitted by the photoelectric conversion layer 76 of each pixel 82 constituting the radiation conversion panel 44. And is stored as charges in the storage capacitor 80 (see FIG. 5).

  Next, the charge information that is the radiation image information of the patient 22 held in each storage capacitor 80 is read according to the address signal supplied from the cassette control unit 52 to the line scanning drive unit 88 and the multiplexer 96.

  That is, the address decoder 90 of the line scan driving unit 88 outputs a selection signal according to the address signal supplied from the cassette control unit 52 to select one of the switches SW1 and the TFT 78 connected to the corresponding gate line 84. A control signal Von is supplied to the gate.

  On the other hand, the address decoder 98 of the multiplexer 96 outputs a selection signal in accordance with the address signal supplied from the cassette control unit 52, and sequentially switches the switch SW2, and each connected to the gate line 84 selected by the line scan driving unit 88. Radiation image information that is charge information held in the storage capacitor 80 of the pixel 82 is sequentially read out via the signal line 86.

  The radiation image information read from the storage capacitor 80 of each pixel 82 connected to the selected gate line 84 of the radiation conversion panel 44 is amplified by each amplifier 92 and then sampled by each sample and hold circuit 94. The signal is supplied to the A / D converter 100 via the multiplexer 96 and converted into a digital signal. The radiation image information converted into the digital signal is temporarily stored in an image memory (not shown) of the cassette control unit 52.

  Similarly, the address decoder 90 of the line scan driving unit 88 sequentially switches the switch SW1 according to the address signal supplied from the cassette control unit 52 and holds it in the storage capacitor 80 of each pixel 82 connected to each gate line 84. The radiographic image information, which is the charge information, is read out via the signal line 86 and stored in an image memory (not shown) of the cassette control unit 52 via the multiplexer 96 and the A / D converter 100.

  The electronic cassette 28 in which the radiographing of the patient 22 is recorded after the imaging is completed is loaded into the cassette loading unit 120 of the cradle 30 disposed in the imaging room 36. At that time, the lid member 68 provided at one end of the outer cover 40 abuts on the lid member opening portion 122 provided in the cassette loading portion 120, and resists the elastic force of the spring 72. And the opening 74 is opened (see FIG. 8).

  For this reason, in the electronic cassette 28, the battery 50 is charged and the radiation image information is read, and the outer cover 40 is removed and the outer cover 40 is cleaned.

  Specifically, as shown in FIG. 7, the connector part 124 a of the electronic cassette 28 is connected to the connector part 124 b provided in the cassette loading part 120 of the cradle 30. Accordingly, the battery 50 is electrically connected to the charging processing unit 112, and charging processing for the battery 50 can be started.

  On the other hand, when the lock release switch 128 constituting the lock release mechanism 126 is pressed, the lock release lever 130 having one end engaged with the lock release switch 128 swings the other end side upward with the pin 132 as a fulcrum. Move.

  A pressing member 134 is engaged with the other end of the lock release lever 130, and the pressing member 134 enters the outer cover 40 through the opening 74. For this reason, when the pressing member 134 rises, the lock release bar 66 is moved upward. Therefore, the lock release bar 66 presses the inclined surface 62 a provided on the lower surface of the front end of the lock claw 62, and the lock claw 62 moves inward against the elastic force of the spring 60.

  As a result, the lock mechanism 56 is released, and the outer cover 40 can be separated from the casing 41. Only this outer cover 40 is removed from the cassette loading section 120 (see FIG. 9). The outer cover 40 is conveyed to a cleaning device (not shown), and the outer cover 40 is subjected to, for example, a heat cleaning process. The cleaned outer cover 40 is returned to the cassette loading unit 120 and loaded into the cassette loading unit 120 so as to accommodate the casing 41.

  Here, a lock claw 62 is provided inside the outer cover 40, and when the outer cover 40 moves to the cassette loading portion 120 side, the lock claw 62 is placed on the inclined surface 58 a of the claw member 58 of the casing 41. Abut. For this reason, the lock claw 62 once slides inward against the elastic force of the spring 60, then moves outward and engages with the claw member 58. Thereby, the outer cover 40 is attached to the casing 41 under the action of the lock mechanism 56.

  While the charging process and the cleaning process of the outer cover 40 are performed, the information read / write processing unit 115 reads out the radiographic image information recorded in the electronic cassette 28 and the patient information related to the image information. The patient information is temporarily stored in the image memory 117 and then displayed on the display unit 116. The engineer can confirm whether or not appropriate photographing has been performed according to the displayed information.

  The electronic cassette 28 from which the radiation image information has been read and the charging process has been completed is used for the next imaging after the necessary patient information is recorded again. On the other hand, the radiation image information stored in the image memory 117 of the cradle 30 is transmitted to the console 34 via the transmission / reception unit 114, subjected to image processing by the image processing unit 160, and then associated with the patient information. Stored in the image memory 162. Next, the radiation image information stored in the image memory 162 is displayed on the display unit 164, whereby the final confirmation of the image can be performed.

  In this case, in the present embodiment, the electronic cassette 28 includes a grid 42, a radiation conversion panel 44, a lead plate 46, a battery 50, a cassette control unit 52, and a transmission / reception unit 54, and an outer cover 40. They are configured to be detachable from each other via a lock mechanism 56. On the other hand, the cradle 30 loaded with the electronic cassette 28 is provided with a lock release mechanism 126 for releasing the lock mechanism 56 of the electronic cassette 28 loaded in the cassette loading unit 120.

  Therefore, after the electronic cassette 28 is loaded in the cassette loading section 120, the outer cover 40 can be easily separated from the casing 41 only by driving the lock release mechanism 126 and releasing the lock mechanism 56. For this reason, after removing the unlocked outer cover 40 from the casing 41, only the outer cover 40 can be subjected to a heat cleaning process, and amorphous selenium that is likely to cause functional deterioration due to high temperature is obtained. The included radiation conversion panel 44 is not exposed to heat treatment.

  Thereby, it is not necessary to use a special heat insulation structure for the electronic cassette 28, and an effect that the cleaning process of the outer cover 40 is efficiently and reliably performed with a simple and compact configuration is obtained.

  Moreover, when the battery 50 of the electronic cassette 28 is charged with the cradle 30, the outer cover 40 is unlocked. For this reason, in the cradle 30, while predetermined processing is performed on the electronic cassette 28, the outer cover 40 can be individually cleaned, and there is an advantage that the efficiency of the entire work can be improved.

  Furthermore, the outer cover 40 constituting the electronic cassette 28 is provided with a lid member 68 at one end on the battery 50 side, and the lid member 68 is configured to be able to open and close the opening 74 via a spring 72. Therefore, normally, when the lid member 68 closes the opening 74, it is possible to prevent dust and the like from entering the outer cover 40.

  In addition, this invention is not limited to embodiment mentioned above, Of course, it can change freely in the range which does not deviate from the main point of this invention.

  For example, the radiation conversion panel 44 accommodated in the electronic cassette 28 converts the dose of the incident radiation X directly into an electrical signal by the photoelectric conversion layer 76. Instead of this, the incident radiation X is converted by a scintillator. Once converted into visible light, a radiation conversion panel configured to convert the visible light into an electrical signal using a solid state detection element such as amorphous silicon (a-Si) may be used (Japanese Patent No. 3494683). reference).

  Also, radiation image information can be obtained using a light conversion type radiation conversion panel. In this light conversion type radiation conversion panel, when radiation is incident on each solid detection element arranged in a matrix, an electrostatic latent image corresponding to the dose is accumulated and recorded in the solid detection element. When reading the electrostatic latent image, the radiation conversion panel is irradiated with reading light, and the value of the generated current is acquired as radiation image information. In addition, the radiation conversion panel can erase and reuse the radiation image information which is the remaining electrostatic latent image by irradiating the radiation conversion panel with erasing light (see Japanese Patent Laid-Open No. 2000-105297). .

It is explanatory drawing of the radiographic imaging system which concerns on this embodiment. It is an internal block diagram of an electronic cassette. It is a front view which shows the internal structure of the said electronic cassette. It is a side view which shows the internal structure of the said electronic cassette. It is a circuit block diagram of the radiation conversion panel which comprises the said electronic cassette. It is a block diagram of the radiation image capturing system. It is front sectional drawing explaining the structure of the said electronic cassette and a cradle. It is side surface sectional drawing explaining the structure of the said electronic cassette and the said cradle. It is explanatory drawing at the time of removing the outer cover which comprises the said electronic cassette from the said cradle. It is explanatory drawing of the radiographic imaging apparatus currently disclosed by patent document 1. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 20 ... Radiographic imaging system 22 ... Patient 24 ... Radiation source 26 ... Radiation source control device 28 ... Electronic cassette 30 ... Cradle 32 ... Portable information terminal 34 ... Console 36 ... Imaging room 38 ... Operation room 40 ... Outer cover 41 ... Casing 44 ... Radiation conversion panel 50 ... Battery 52 ... Cassette control unit 56 ... Lock mechanism 58 ... Claw member 58a, 62a ... Inclined surface 60 ... Spring 62 ... Lock claw 66 ... Lock release bar 68 ... Cover member

Claims (6)

A radiation conversion panel that converts radiation transmitted through the subject into image information;
A housing that houses the radiation conversion panel;
A lock mechanism that is detachable from at least the radiation conversion panel and the housing;
A radiation converter comprising:   2. The radiation converter according to claim 1, wherein a lid member that can be freely opened and closed is disposed at least at one end of the casing.   The radiation converter according to claim 1 or 2, wherein the casing houses a battery.   The radiation converter of any one of Claims 1-3 WHEREIN: The said radiation conversion panel is a radiation converter characterized by the some detection element using amorphous selenium being arranged. A radiation conversion panel that is driven by an onboard battery and detects radiation that has passed through the subject and converts it into image information, a housing that houses the radiation conversion panel, and at least the radiation conversion panel and the housing A radiation converter cradle loaded with a radiation converter having a lock mechanism that is detachable from each other,
An unlocking mechanism for releasing the locking mechanism of the loaded radiation converter and making the housing separable from the radiation converter;
A charge processing unit that performs a charging process on the battery of the loaded radiation converter;
A cradle for a radiation converter, comprising:   The cradle for a radiation converter according to claim 5, wherein the lid member is engaged with an openable / closable lid member disposed at one end of the casing on the battery side, and the lid member is opened when the radiation converter is loaded. A radiation converter cradle comprising a lid member opening mechanism.

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