JP2012063341A - Portable radiation image detection device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a portable radiation image detection device that has a battery easily replaced even after being positioned for photography.SOLUTION: A housing 26 of an electronic cassette 13 is provided with two battery attachment parts 28, 29. The battery attachment parts 28, 29 are arranged at a diagonal position on a substantially rectangular plane of the housing 26. Detachment openings 28b, 29b of the battery attachment parts 28, 29 are formed in two substantially orthogonal side faces respectively, and a socket 34 is provided at inner parts of the detachment openings 28b, 29b. Consequently, battery units 27 can be attached to and detached from two side faces. Even if one of the detachment openings 28b, 29b is blocked with the body of a subject when a subject and the electronic cassette 13 are relatively positioned to determine positions and attitudes according to a photographed part, a battery is replaced through the other.

Description

  The present invention relates to a portable radiological image detection apparatus that detects a radiographic image by receiving radiation that has passed through a subject.

  In the medical field, X-ray imaging apparatuses using radiation, for example, X-rays are known. An X-ray imaging apparatus receives an X-ray source that generates X-rays, and X-ray irradiation that is generated by the X-ray source and transmitted through a subject (such as a patient undergoing an X-ray examination) to obtain image information of the subject. An X-ray image detection apparatus that detects an X-ray image to be expressed. As an X-ray image detecting device, an X-ray sensitive layer is arranged on a TFT (Thin film transistor) active matrix substrate, and an X-ray intensity distribution representing an X-ray image is converted into digital data and output. A detector using a detector) has been put into practical use. The X-ray image detection apparatus is a stationary type in which an FPD is built in an upright photographing stand for photographing a subject in a standing posture or a standing photographing stand for photographing a subject in a prone posture. In addition to the above, a portable X-ray image detection apparatus (hereinafter also referred to as an “electronic cassette”) in which an FPD is built in a flat, substantially rectangular parallelepiped cassette-type casing having a substantially rectangular shape subjected to X-ray irradiation. Has also been developed.

  The electronic cassette is used to shoot parts that are difficult to shoot with the stationary type (for example, joints such as elbows and knees), and the subject who is difficult to move to the photographic room is laid on the bed in the patient's room It can be used for shooting in a wheelchair in an emergency. In preparation for imaging, the electronic cassette and the subject are positioned relative to each other by applying the electronic cassette to the subject's imaging region and adjusting the posture of the subject according to the position and orientation of the electronic cassette ( Positioning).

  If a power cable or a communication cable is attached to the electronic cassette, positioning is difficult and the degree of freedom in positioning also decreases. Therefore, a wireless electronic cassette has been proposed that can be driven by a battery and wirelessly communicates with an external device such as a console so that a power cable and a communication cable are not required (for example, patents). References 1-4).

  The electronic cassettes described in Patent Documents 1 to 4 can be battery-driven, and are detachably attached to the housing so that the battery can be replaced. If the battery can be replaced, the use of the electronic cassette can be resumed immediately if it is replaced with a charged battery even if the remaining battery level is exhausted.

  The electronic cassette described in Patent Document 1 is provided with one battery outlet on the side surface of the housing. In the electronic cassette described in Patent Document 2, an expansion unit that accommodates a battery is detachably attached to one side surface of the housing, and the battery can be replaced by removing the expansion unit.

  In the electronic cassette described in Patent Document 3, a notch is formed in one corner of the housing, and this notch serves as an outlet for the battery mounting portion. The electronic cassette described in Patent Document 3 includes a spare battery built in the casing in addition to the main battery mounted on the battery mounting portion. During replacement of the main battery, the electronic cassette is supplied with power from the spare battery. By operating the battery, it is possible to replace the battery during startup, so-called hot swapping (battery hot-swapping).

  The electronic cassette described in Patent Document 4 also includes two replaceable batteries in order to allow hot swapping by supplying power from another battery while replacing one battery. The electronic cassette described in Patent Document 4 has two outlets from which two batteries are respectively attached and detached, and the two outlets are arranged side by side in the vicinity of the central portion of one side of the housing. Yes.

JP 2007-333380 A JP 2003-248060 A JP 2001-224579 A JP 2008-142093 A

  However, the conventional electronic cassette has a problem that it is difficult to replace the battery without losing the posture of the subject or the electronic cassette after positioning in preparation for imaging.

  This is because the electronic cassettes described in Patent Documents 1 to 3 have one battery outlet and one battery attachment / detachment direction, so that the posture of the subject and the electronic cassette after positioning is determined. Thus, if the battery outlet and the path for accessing the outlet are blocked by the body of the subject, the position that has been once positioned must be destroyed and the battery replaced.

  The electronic cassette described in Patent Document 4 has two battery outlets, but the two outlets are arranged close to the central part of one side of the casing, so that one of the body of the subject can When the takeout port is blocked, there is a high possibility that the other takeout port is also blocked. Therefore, although the electronic cassette described in Patent Document 4 has two outlets, they are provided at almost the same place, so that the electronic outlet described in Patent Document 1 has one outlet. This is substantially the same as the electronic cassette provided, and has the same problem as in Patent Document 1.

  If the posture of the subject or the electronic cassette is lost, the positioning must be performed again, which is complicated. Also, if you are in a hurry to respond to an emergency, you will have time to reposition. Patent Documents 1 to 4 do not clearly indicate or suggest these problems and their solutions, and do not consider them at all.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a portable radiological image detection apparatus in which a battery can be easily replaced even after positioning in a state where imaging is possible.

  The portable radiographic image detection apparatus of the present invention has a detection unit that receives a radiation image transmitted through a subject and detects a radiographic image, and a shape of a plane that contains the detection unit and receives the radiation irradiation is substantially rectangular. And a battery mounting part that is provided in the casing and in which a battery unit that supplies power to the detection unit is detachably mounted. The battery mounting unit is electrically connected to at least one battery storage unit that stores the battery unit and has a take-out port for attaching and detaching the battery unit, and the battery unit stored in the battery storage unit. And at least two connection portions. The first and second connecting portions are arranged in different directions, or are arranged in the same direction at both ends of one side of the plane.

  Since there are at least two connection portions of the first and second in different directions, even if positioning is performed to align the relative position with the subject, one connection portion cannot be used depending on the positioned posture. The battery can be replaced by using one of the connecting portions, such as using the other connecting portion arranged in the direction. For this reason, it is easy to replace the battery without destroying the positioned posture.

  Even when the first and second connection portions have the same orientation at both ends of one side of the housing plane, the first and second connection portions are spaced by a distance close to one side of the housing. Therefore, when one connecting portion cannot be used due to the positioned posture, the battery can be replaced using the other connecting portion. For this reason, as in the case where the first and second connection portions are arranged in different directions, it is easy to replace the battery without destroying the positioned posture.

  The outlet is, for example, an opening formed on one surface of the housing or a notch formed by cutting out a part of two or more surfaces orthogonal to the housing.

  For example, the first and second connecting portions are arranged in different directions so that the battery unit can be attached and detached from two different directions. In this case, the housing has four side surfaces extending along each side of the plane, and the two different directions are directions corresponding to two of the four side surfaces. It is preferable. Further, the two side surfaces are preferably a first side surface and a second side surface orthogonal to each other. The plane is, for example, a rectangle, the first side surface is a side surface extending along the long side of the plane, and the second side surface is a side surface extending along the short side of the plane.

  The battery mounting unit includes, for example, first and second battery mounting units, and the first battery mounting unit includes the first connection unit and the battery in which the first connection unit is disposed. A first battery storage portion that is a storage portion, and the second battery mounting portion is formed from the second connection portion and a second battery storage portion that is the battery storage portion in which the second connection portion is disposed. Become.

  It is preferable that the respective outlets of the first and second battery mounting portions are arranged at diagonal positions on the plane.

  At least one of the first and second battery storage units may have a plurality of outlets with different attachment / detachment directions of the battery unit.

  The number of the battery mounting portions is one, and the battery mounting portion may include one battery storage portion in which the first and second connection portions are arranged. In this case, it is preferable that the battery mounting portion is disposed at a corner corresponding to one of the four vertices of the plane. Furthermore, it is preferable that the first and second connection portions are arranged in directions substantially orthogonal to each other in the battery storage portion.

  When the battery mounting portion can mount the elongated battery unit, it is preferable that the take-out port is capable of detaching the battery unit from the surface in the short side direction.

  The casing is preferably sized in accordance with international standard ISO 4090: 2001.

  It is preferable that the battery storage unit can store the battery unit without protruding from the outer peripheral surface of the housing.

  A spare battery that supplies the power when the battery unit is removed from the battery mounting portion may be provided instead of the battery unit.

  The battery unit may include an openable / closable lid that closes the take-out port when the battery unit is not attached to the battery attachment portion.

  The battery housing portion may have a guide portion that engages with a concave portion or a convex portion provided in the battery unit and guides the battery unit in the attaching / detaching direction.

  For example, the battery mounting unit can simultaneously mount two battery units connected to the first and second connection units, respectively, and the designated battery among the two battery units can be input by an operation signal. You may provide the priority setting means which sets so that a unit may be used preferentially. In this case, it is preferable to provide an indicator for displaying the battery unit set by the priority setting means.

  The battery mounting unit includes an urging unit that urges the battery unit in the battery storage unit toward the outlet, and the battery unit when the battery unit is pushed to a mounting position against the urging unit. A latch mechanism that engages with the unit and fixes the position of the battery unit may be provided.

  The battery unit may include a wireless communication unit, and may include a control unit that controls the wireless communication unit to output the radiation image detected by the detection unit to the outside.

  It is preferable that the housing can be detachably attached to an imaging stand for imaging a subject in a standing posture or a standing posture with at least one of the side surfaces exposed to the outside.

  According to the present invention, since the first and second connection parts for connecting the battery unit are arranged in different directions or in the same direction at both ends of one side of the plane of the housing, after positioning in a state capable of photographing. However, it is possible to provide a portable radiological image detection apparatus that allows easy battery replacement.

It is the schematic which shows the structure of a X-ray imaging system. It is a perspective view of a supine photography stand. It is a perspective view which shows the tray in which an electronic cassette is attached. It is a perspective view which shows the electronic cassette (portable radiographic image detection apparatus) of this invention. It is explanatory drawing of the latch mechanism of a battery unit. It is explanatory drawing of the operation button which cancels | releases engagement of a latch mechanism. It is a block diagram which shows the structure of FPD. It is a block diagram which shows the electric constitution of an electronic cassette. It is explanatory drawing which shows the state which replaces | exchanges a battery unit with respect to the electronic cassette attached to the tray. It is a perspective view which shows an example of the standing position imaging stand to which an electronic cassette is attached. It is explanatory drawing which shows the positional relationship of the subject and electronic cassette when imaging a knee. It is explanatory drawing which shows the positional relationship of the subject and electronic cassette when image | photographing an elbow. It is explanatory drawing which shows the positional relationship of the subject and electronic cassette when imaging a waist | hip | lumbar. It is explanatory drawing in case a test subject image | photographs holding an electronic cassette. It is explanatory drawing in the case of image | photographing the subject put on the wheelchair using an electronic cassette. It is explanatory drawing of the position of the battery mounting part at the time of diagonally arranging. It is explanatory drawing of the position of the battery mounting part when not diagonally arranging. It is a top view of the electronic cassette of FIG. It is explanatory drawing of the position of the battery mounting part at the time of opposing arrangement | positioning. It is explanatory drawing of the example using the elongate battery. It is explanatory drawing which shows the comparative example of FIG. It is explanatory drawing of the example which has a some taking-out port in one battery mounting part. It is explanatory drawing of the example which has a some connection part in one battery mounting part. It is explanatory drawing which shows the modification of FIG. It is explanatory drawing of the example which has arrange | positioned the battery mounting part in the both ends of the one side of the plane of a housing | casing. It is explanatory drawing of a priority designation | designated switch. It is explanatory drawing of the modification of a priority designation | designated switch. It is explanatory drawing of the example which provided the indicator in the battery unit. It is explanatory drawing of the example which provided the spare battery. It is explanatory drawing of the example which provided the indicator in the battery unit different from FIG. It is explanatory drawing of the example which provided the cover in the battery mounting part. It is operation | movement explanatory drawing of the lid | cover of FIG. It is explanatory drawing of the example which provided the guide member in the battery unit.

[First embodiment]
As shown in FIG. 1, an X-ray imaging system 10 includes an X-ray generator 11, a lying position imaging table 12, an electronic cassette 13 that is a portable radiographic image detection device of the present invention, a console 14, and a monitor 15. And.

  The console 14 includes information on the patient's information such as the gender and age of the subject H, information on the procedure such as the imaging region (head, chest, abdomen, etc.), imaging direction, imaging position (eg, standing or lying). An order receiving function for receiving an inspection order including The examination order is issued from an external system that manages patient information such as HIS (Hospital Information System) and RIS (Radiation Information System) and examination information related to X-ray examinations, and is input to the console 14 via a communication network such as a LAN. Is done. In accordance with the contents of the inspection order, the imaging conditions such as the tube voltage for determining the X-ray energy spectrum, the soot current for determining the X-ray irradiation amount, and the X-ray irradiation time are determined. The console 14 transmits and sets imaging conditions (tube voltage, tube current, irradiation time, etc.) to the X-ray generator 11 and the electronic cassette 13.

  The X-ray generator 11 emits X-rays toward the subject H placed on the supine imaging table 12 based on an irradiation start signal input from an irradiation switch attached to the console 14 or the like. The electronic cassette 13 receives X-ray irradiation transmitted through the subject H, detects an X-ray image representing the image information of the subject H, and transmits X-ray image data to the console 14. The console 14 performs various types of image processing on the X-ray image received from the electronic cassette 13 and displays the image on the monitor 15.

  The recumbent photographing stand 12 is provided with a tray 21 to which an electronic cassette 13 is attached. In the X-ray imaging system 10, imaging is performed with the electronic cassette 13 attached to the tray 21, and imaging sites (such as elbows and knee joints) that are difficult to capture with the electronic cassette 13 attached to the tray 21. The electronic cassette 13 is removed from the tray 21, and the electronic cassette 13 and the subject H are positioned on the lying position photographing stand 12 to perform photographing (see FIGS. 11 to 14).

  As shown in FIG. 2, the X-ray generator 11 operates an X-ray tube 11 a that emits X-rays, a collimator 11 b that is an irradiation field limiter that limits an X-ray irradiation range (irradiation field), and these components. It consists of the operation part 11c. The X-ray generator 11 is held, for example, on a support column that is movable and telescopically installed on the ceiling of the X-ray imaging room, and is disposed above the supine imaging table 12.

  The recumbent photographing stand 12 includes a top plate 16 and a photographing stand main body 17 provided under the top plate 16. The top plate 16 has a rectangular shape having a length and a width with which the subject H can lie down, and is arranged on the imaging base body 17 so that the top surface on which the subject H is placed is horizontal. . The top plate 16 is made of carbon or the like having a high X-ray transmittance.

  The photographic stand main body 17 includes a top plate support part 20, a tray 21, and an elevating part 22. The top plate support unit 20 includes a floating mechanism (not shown) that supports the top plate 16 so as to be movable in the XY directions. The floating mechanism includes a manual type in which an operator manually moves the top plate and an automatic type in which the operator automatically moves the top plate by an electric mechanism or the like. In this embodiment, an automatic type by an electric mechanism is used. In addition, an operation panel 23 for operating the top support 20 is provided on the front side of the supine position stand 12 when the operator performs a photographing operation on the supine position stand 12.

  The tray 21 is provided below the top plate 16 and between the top plate support portions 20. The tray 21 can be pulled out from under the top plate 16 by pulling a handle 21 a provided on the front side to the front side. The tray 21 is moved in the X direction by a slide mechanism (not shown). The slide mechanism includes a manual type and an automatic type as in the above-described floating mechanism. In the present embodiment, the slide type is an automatic type. The operation panel 23 is also used for the operation of the slide mechanism.

  The elevating unit 22 includes a top plate 16, an electric elevating mechanism (not shown) for elevating the top plate support unit 20 and the tray 21, and a telescopic bellows type cover 22 a that covers the periphery of the elevating mechanism. Yes. This lifting mechanism is also operated by the operation panel 23.

  As shown in FIG. 3, the tray 21 is an attachment portion to which the electronic cassette 13 is detachably attached. The electronic cassette 13 is attached with the back surface opposite to the irradiation surface irradiated with the X-rays facing the tray 21. On the upper surface of the tray 21, an opening 21 b is formed by cutting out the electronic cassette 13 according to its outer size so that the electronic cassette 13 does not move carelessly. The opening 21b is also cut away from the front surface of the tray 21 so that the electronic cassette 13 can be inserted from the front surface side of the lying position photographing table 12.

  The opening 21 b is substantially L-shaped when viewed from above the tray 21. This is because the electronic cassette 13 having a rectangular planar shape is accommodated in two mounting postures, a vertical posture and a horizontal posture. The vertical posture is a posture in which the long side direction of the electronic cassette 13 is parallel to the long side direction of the top plate 16, and the horizontal posture is a posture in which the long side direction of the electronic cassette 13 is orthogonal to the long side direction of the top plate 16. is there. The shape of the tray 21 is merely an example, and is not limited to this, and may be any other shape as long as the electronic cassette 13 can be attached in two postures of a vertical posture and a horizontal posture.

  As shown in FIG. 4, the electronic cassette 13 includes an FPD 30 (detection unit) and a casing 26 that houses the FPD 30. A lead plate 39 that absorbs X-ray backscattered rays is disposed on the back side of the FPD 30, and a circuit board (not shown) is disposed on the back side of the lead plate 39.

  The casing 26 has a flat and substantially rectangular parallelepiped shape with a rectangular planar shape. More specifically, the irradiation surface 26a irradiated with X-rays and the back surface 26b facing the irradiation surface 26a have a substantially rectangular shape. And side surfaces 26c to 26f along the four sides of the irradiation surface 26a and the back surface 26b. The case main body is made of a stainless steel or aluminum casing having a region corresponding to the detection surface (the surface on which X-rays are incident) of the FPD 30 and an X-ray transparent material (carbon or the like). And a flat plate that constitutes an irradiation surface 26a that is irradiated with X-rays.

  The casing 26 has, for example, a half-cut size (383.5 mm × 459.5 mm) film or an external size conforming to the international standard ISO 4090: 2001 similar to an IP cassette. It can be used by attaching to a photographing stand used for a cassette. The external size of the electronic cassette 13 includes a four-cut size, a six-cut size, etc. in addition to the half-cut size described above, and is appropriately selected according to the imaging region.

  The casing 26 is provided with two battery mounting portions 28 and 29 to which the battery unit 27 is detachably mounted. The battery mounting portions 28 and 29 are arranged at corners located near the four apexes of the plane (irradiation surface 26a and back surface 26b) of the casing 26, respectively, and both are diagonally on the irradiation surface 26a and the back surface 26b. Placed in position. The battery mounting portions 28 and 29 have storage chambers 28a and 29a for storing the battery unit 27, and take-out ports 28b and 29b for attaching and detaching the battery unit 27 to and from the storage chamber 28a, respectively.

  The storage chambers 28a and 29b have a substantially rectangular tube shape corresponding to the outer shape of the battery unit 27, and are bottomed concave portions having the extraction ports 28b and 29b as openings. The outlets 28b and 29b are each sized to fit on one of the side surface 26c and the side surface 26d, and the outlets 28b and 29b are formed so as not to straddle the other side surface, the irradiation surface 26a, and the back surface 26b. Has been. For this reason, in the state accommodated in the storage chambers 28 a and 29 a, the peripheral surface of the battery unit 27 is not exposed to the irradiation surface 26 a and the back surface 26 b side of the housing 26.

  The take-out port 28b of the battery mounting part 28 is formed on one side surface 26c arranged along the long side direction, and the take-out port 29b of the battery mount unit 29 extends along the short side direction perpendicular to the side surface 26c. It is formed on one side surface 26d to be disposed. Therefore, even if the irradiation surface 26a and the back surface 26b of the casing 26 are hidden at the positions of the battery mounting portions 28 and 29, the battery unit 27 can be attached and detached as long as the side surfaces 26c and 26d are exposed to the outside. . In addition, since the electronic cassette 13 is arranged on the two side surfaces 26c and 26d where the outlets 28b and 29b of the battery mounting portions 28 and 29 are orthogonal to each other, the battery unit 27 can be attached and detached from two different directions. ing.

  When the electronic cassette 13 is mounted in the vertical position, the battery mounting portion 28 provided on the side surface 26c is exposed to the outside from the opening 21b, and when mounted in the horizontal position, the battery mounting portion 29 provided on the side surface 26d. Through the opening 21b of the tray 21 when the electronic cassette 13 is attached to the tray 21 of the supine photographing stand 12 in either the vertical position or the horizontal position. One of the side surfaces 26c and 26d is exposed to the outside. Since the respective outlets 28b and 29b are respectively provided on the side surface 26c and the side surface 26d, each of the outlet ports 28b and 29b is provided regardless of whether the electronic cassette 13 is attached to the lying position photographing stand 12 in the vertical posture or the horizontal posture. Since 28b and 29b are exposed to the outside from the opening 21b, the battery unit 27 can be replaced with the electronic cassette 13 attached to the supine photographing stand 12.

  The battery unit 27 includes a battery 58 (see FIG. 8) which is a main body having a power supply capacity capable of photographing a plurality of times, and a case for storing the battery 58. The battery 58 is a rechargeable battery, and can be charged by connecting the battery unit 27 to a charger such as a cradle.

  The battery 58 may be a secondary battery such as nickel cadmium, nickel hydride, or lithium ion, or a capacitor such as an electric double layer capacitor or a lithium ion capacitor. The performance of the battery 58 of the electronic cassette 13 is required to be small, have a relatively large capacity, and have a short charging time. Lithium ion secondary batteries have the features of high energy density, small size, and large capacity compared to other secondary batteries, so lithium ion secondary batteries are preferable when miniaturization and large capacity are required. . In addition, since the capacitor can be rapidly charged, the capacitor is preferable when shortening the charging time is required.

In recent years, by using nano-particles, new batteries such as lithium ion secondary batteries with fast charge performance comparable to capacitors and lithium ion capacitors with high energy density as well as quick charge performance have been developed. It is more preferable to use these as the battery 58.
(Http://www.toshiba.co.jp/about/press/2005_03/pr_j2901.htm
(See http://www.jmenergy.co.jp/img/JMenergy2009.pdf)

  In addition, each battery mounting portion 28, 29 can mount a battery unit having different characteristics such as a battery unit 27 using a lithium ion secondary battery as the battery 58 or a battery unit 27 using a lithium ion capacitor as the battery 58. It is preferable that

  If battery units having different characteristics can be mounted on the two battery mounting portions 28 and 29, for example, the following usage is possible. When the electronic cassette 13 is attached to the upright photographing stand 12 in a vertical posture, the take-out port 28b is exposed from the opening 21b, and the battery attaching portion 28 that can be replaced with the battery while attached to the photographing stand 12 is charged quickly. A battery unit 27 having a large capacity is mounted on a battery mounting portion 29 that is mounted with a possible battery unit 27 and is hidden behind the imaging table 12. Even if both of the battery units 27 run out, the battery unit 27 of the battery mounting unit 28 can be removed and quick charging can be performed, so that the shooting interruption time due to the battery remaining running out is shortened.

  The characteristics of the battery 58 include, for example, weight, energy density (Wh / kg), weight output density (W / kg), size, shape, weight, and the like. When the size and shape of the battery unit 27 and the battery mounting portions 28 and 29 are different, it is preferable that the battery unit 27 can be mounted using an adapter that matches the size of each battery mounting portion 28 and 29. When a plurality of types of battery units 27 having different characteristics of the battery 58 have the same external shape, it is preferable to attach an identification mark such as a color, a pattern, or a symbol to the case of the battery unit 27 so that the types can be easily distinguished. .

  When a plurality of types of battery units 27 having different characteristics can be used, it is preferable that the console 14 is provided with a function for notifying the types of preferable battery units 27. For example, since the number of shots is included in the inspection order, the console 14 recommends using the battery unit 27 having a relatively large capacity when the number of shots is large based on the contents of the inspection order. Show the message on the display.

  The battery unit 27 has a substantially rectangular parallelepiped shape, and is provided with a convex connector 31 so as to protrude from one end face. A socket 34 connected to the connector 31 is provided in the back of the storage chambers 28 a and 29 a of the battery mounting portions 28 and 29. The socket 34 is a connection portion having a terminal for electrical connection with the battery unit 27, and has a concave shape so as to be fitted to the convex connector 31. The orientations of the sockets 34 in the storage chambers 28a and 29a correspond to the orientations of the take-out ports 28b and 29b, respectively, and are orthogonal to each other.

  The storage chambers 28 a and 29 a have a size that allows the battery unit 27 to be stored in a state in which the connector 31 and the socket 34 are connected and the outer surface of the battery unit 27 does not protrude from the outer surface of the housing 26.

  Further, when the battery unit 27 is removed from the battery mounting portions 28 and 29, a notch 35 into which a part of the fingertip can be inserted is provided at the periphery of the take-out ports 28b and 29b so that the end of the battery unit 27 can be easily grasped. Is formed.

  An indicator 40 is provided on the side surfaces 26c and 26d in the vicinity of the outlets 28b and 29b. The indicator 40 displays the on / off state of the power source of the electronic cassette 13, the communication state, the remaining amount of the battery unit 27, and the like. The indicator 40 includes an indicator lamp composed of a plurality of LEDs, a liquid crystal panel, and the like. As the remaining amount of the battery unit 27, for example, in addition to the remaining amount of each battery unit 27 attached to each of the battery attachment portions 28 and 29, the battery unit 27 is attached to the two battery attachment portions 28 and 29. In this case, the total remaining amount of the two battery units 27 is displayed.

  In this example, the convex connector 31 is provided in the battery unit 27 and the concave socket 34 is provided in the battery mounting portions 28 and 29. On the contrary, the convex connector is provided in the battery mounting portion. Recessed sockets 28 and 29 may be provided in the battery unit 27. Moreover, since the shape of each connection part of the battery unit 27 and the battery mounting parts 28 and 29 can be considered as a form having no irregularities, it can be appropriately changed.

  As shown in FIG. 5, the battery mounting portion 28 has a latch mechanism 41 in the back of the storage chamber 28a. The latch mechanism 41 has an engagement claw (not shown), engages with the battery unit 27, and is fixed at a mounting position where the connector 31 and the socket 34 are electrically connected. The latch mechanism 41 is provided with a spring 41a that urges the battery unit 27 from the back of the storage chamber 28a toward the takeout port 28b. When the battery unit 27 is pushed from the take-out port 28b toward the back of the storage chamber 28a, the engaging claw of the latch mechanism 41 and the battery unit 27 are engaged, and the engagement resists the bias of the spring 41a. The battery unit 27 is fixed at the mounting position. When the mounted battery unit 27 is pushed from the direction of the take-out port 28b toward the back of the storage chamber 28a, the latch mechanism 41 is disengaged. When the engagement is released, the battery unit 27 protrudes from the take-out port 28b by the urging force of the spring 41a. Although the battery mounting portion 28 has been described as an example, the same applies to the battery mounting portion 29.

  Of course, as shown in FIG. 6, an operation button 41b for releasing the engagement of the latch mechanism 41 may be provided in the vicinity of the takeout port 28b, and the battery unit 28 may be taken out by pressing the operation button 41b.

  As shown in FIG. 7, the FPD 30 is configured by laminating a charge generation layer that absorbs X-rays and converts them into charges on a TFT active matrix substrate 43. The charge generation layer is made of amorphous a-Se (amorphous selenium) containing, for example, selenium as a main component (for example, a content rate of 50% or more). When X-rays are irradiated, the charge corresponding to the irradiated X-ray dose By generating a certain amount of charge (electron-hole pairs) internally, the irradiated X-rays are converted into charges. Of course, the FPD 30 may be an indirect conversion type in which X-rays are converted into visible light after being converted into visible light by a scintillator.

  On the TFT active matrix substrate 43, a large number of pixels 44 each having a storage capacitor for storing the charge generated in the charge generation layer and a TFT for reading out the charge stored in the storage capacitor are arranged in a matrix. These pixels 44 constitute a detection surface for detecting incident X-rays. Charges generated in the charge generation layer in accordance with the amount of X-rays incident on the detection surface are accumulated in the storage capacitors of the individual pixels 44. Thereby, the image information of the subject H carried by the X-rays incident from the irradiation surface 26 a is converted into charge information and held on the TFT active matrix substrate 43.

  The TFT active matrix substrate 43 has a plurality of gate wirings 45 extending in a certain direction (row direction) for turning on and off the TFT gates of the individual pixels 44, and a direction orthogonal to the gate wiring 45 (column direction). A plurality of data wirings 46 are provided for reading out stored charges from the storage capacitors via the TFTs that are extended and turned on. Individual gate lines 45 are connected to a gate driver 47, and individual data lines 46 are connected to a signal processing unit 48. When charges are accumulated in the storage capacitors of the individual pixels 44, the TFTs of the individual pixels 44 are sequentially turned on in units of rows by a signal supplied from the gate driver 47 through the gate wiring 45, and the TFTs are turned on. The charge accumulated in the storage capacitor of the pixel 44 is transmitted as a charge signal through the data wiring 46 and input to the signal processing unit 48.

  The signal processing unit 48 includes an amplifier and a sample hold circuit provided for each data line. The charge signal transmitted through each data line is amplified by the amplifier and then held in the sample hold circuit. In addition, a multiplexer and an A / D converter are connected in order to the output side of the sample and hold circuit, and the charge signals held in the individual sample and hold circuits are input to the multiplexer in order (serially) for A / D conversion. The digital image data is converted by the device. Image data output from the A / D converter of the signal processing unit 48 is sequentially stored in the image memory 49. The image memory 49 has a storage capacity capable of storing at least one X-ray image, but preferably has a storage capacity capable of storing a plurality of X-ray images.

  As shown in FIG. 8, the electronic cassette 13 is provided with a control unit 53, a power supply circuit 52, an operation unit 54, and a wireless communication unit 59. The control unit 53 is a CPU that controls the entire electronic cassette 13, a ROM that stores a program executed by the CPU, and a work memory that is used for the CPU to execute a process by developing a program loaded from the ROM. The microcomputer includes a RAM and an EEPROM that stores various setting information. The operation unit 54 includes a power button and the like.

  The power supply circuit 52 includes a DC-DC converter that converts a voltage supplied from the battery unit 27 into a voltage required by each unit of the electronic cassette 13, and supplies power from the battery unit 27 to each unit of the electronic cassette 13. . Further, the power supply circuit 52 outputs a voltage level supplied from the battery unit 27 attached to each of the battery attachment units 28 and 29 to the control unit 53. The control unit 53 detects the remaining amount of each battery unit 27 based on the voltage value output from the power supply circuit 52, and operates each indicator 40 so as to display the detected remaining amount. For example, when the voltage value falls below the threshold value, the control unit 53 determines that the remaining amount has run out, and causes each indicator 40 to display that effect.

  Further, the control unit 53 detects whether or not the battery unit 27 is mounted on each of the battery mounting units 28 and 29 based on whether or not the voltage value is output from the power supply circuit 52. As a method for detecting attachment of the battery unit 27, a photo sensor or a micro switch may be used.

  The power supply circuit 52 is provided with a selector 52 a that selects each power supply path from the battery mounting portions 28 and 29. The selector 52a is controlled by the control unit 53. When the battery unit 27 is attached only to one of the battery attachment parts 28 and 29, the control part 53 operates the selector 52a to switch to the attached power feeding path.

  In addition, when the battery unit 27 is mounted on both the battery mounting units 28 and 29, the control unit 53 preferentially uses the battery unit 27 having a larger remaining amount or a smaller remaining amount. A power feeding path is selected according to the remaining amount. Of course, the power supply path may be selected so that the remaining amounts of both battery units 27 are the same, and the previously installed battery unit 27 is preferentially used according to the order of attachment. A feeding path may be selected.

  In addition, when the battery unit 27 is mounted on both the battery mounting units 28 and 29 and the electronic cassette 13 is activated when the power source is turned on, the control unit 53 removes one battery unit 27. Also, the hot-swap function (hot-line insertion / extraction) for switching to the power feeding path from the other battery unit 27 is supported. As a result, when replacing the battery unit 27, it is not necessary to turn off the power source of the electronic cassette 13, so that the restart is unnecessary and the battery can be replaced quickly.

  The wireless communication unit 59 is a communication unit that communicates with the console 14 and includes an antenna and a communication circuit that generate radio waves for communication. The wireless communication unit 59 receives control signals such as an X-ray irradiation start signal and an irradiation time from the console 14, and transmits image data in the image memory 49 to the console 14. Note that the wireless communication unit may be an optical communication unit such as an infrared ray.

  The operation of the above configuration will be described with reference to FIG. As shown in FIG. 2, when an electronic cassette 13 is attached to the supine photographing stand 12 and the subject H is photographed, the vertical posture and the horizontal posture are taken as shown in FIG. In any of the positions, the electronic cassette 13 is attached to the tray 21 of the supine photographing stand 12.

  The electronic cassette 13 has the same outer shape and size as the film cassette and the IP cassette, and the battery unit 27 is also housed in the battery mounting portions 28 and 29 without protruding from the casing 26. Therefore, the electronic cassette 13 It can also be attached to an existing photo frame for cassettes. In the case where an extension unit having a battery is attached to the housing as in the conventional electronic cassette described in Patent Document 2, there is a high possibility that a dedicated photographing stand is required, and a film cassette or an IP cassette is required. Therefore, there is a problem that the mounting posture is not limited such that it cannot be attached to an existing photographing stand for use, or can only be attached in either a vertical posture or a horizontal posture. Compared to such a conventional electronic cassette, the electronic cassette 13 of the present invention has a high suitability for mounting on a photographing stand without being limited by the type and mounting posture of the photographing stand.

  As shown in FIG. 9A, the electronic cassette 13 is attached so that the side surface 26 c of the casing 26 is exposed to the outside from the opening 21 b of the tray 21 when in the vertical posture. In the vertical position, the take-out port 29b of the battery mounting portion 29 formed on the side surface 26d of the housing 26 is hidden behind the tray 21, but the battery mounting disposed diagonally to the battery mounting portion 29 is provided. The part 28 is exposed to the outside through the opening 21b because the outlet 28b is formed in the side surface 26c. Further, as shown in FIG. 9B, in the horizontal posture, the side surface 26d of the housing 26 is attached so as to be exposed to the outside from the opening 21b. Contrary to the vertical posture, in the horizontal posture, the take-out port 28b of the battery mounting portion 28 formed on the side surface 26c of the housing 26 is hidden behind the tray 21, but formed on the side surface 26d. The taken-out opening 29b of the battery mounting portion 29 is exposed to the outside through the opening 21b.

  The control unit 53 monitors the remaining amount of the battery unit 27 in accordance with the voltage value from the power supply circuit 52, and displays the remaining amount on the indicator 40 when the remaining amount of the battery unit 27 runs out. Regardless of whether the electronic cassette 13 is attached in the vertical orientation or the horizontal orientation, one of the outlets 28b and 29b of the two battery mounting portions 28 and 29 is exposed to the outside from the opening 21b. In the state where 13 is attached to the tray 21, the battery unit 27 can be exchanged through the take-out ports 28b and 29b exposed from the opening 21b.

  Since the control unit 53 has a hot swap function, when the battery unit 27 is mounted on both the battery mounting units 28 and 29, even if one of the battery units 27 is removed, the control unit 53 is connected to the other battery unit 27. Since the power supply is switched, the battery unit 27 can be replaced in the activated state without turning off the power of the electronic cassette 13.

  When replacing the battery unit 27, it is not necessary to remove the electronic cassette 13 from the photographing stand. For this reason, even when the battery unit 27 is exchanged in the middle of an examination that requires a plurality of images for one subject H, the time for which the subject H is kept waiting is short, so the mentality of the subject H There is little burden. Further, since it is not necessary to remove the electronic cassette 13 which is heavier than the film cassette or the IP cassette, the burden on the operator who performs the replacement work is reduced. In addition, since the hot swap function is provided, it is not necessary to turn off the power, so that the replacement work can be performed more quickly.

  In recent years, the sophistication of image diagnosis has progressed, and the frequency of continuously taking a plurality of images in one examination has increased, and the frequency of battery replacement during the examination has also increased. For this reason, the burden associated with the battery replacement work has become apparent, and there are increasing demands from medical sites to reduce the burden. The present invention is highly useful for such problems.

  In this example, the example in which the electronic cassette 13 is attached to the supine photographing stand 12 has been described. However, as shown in FIG. 10, the electronic cassette 13 may be attached to the standing photographing stand 60. The standing photographing stand 60 includes a support 61 installed on the floor and a cassette holder 62 to which the electronic cassette 13 is attached. The cassette holder 62 is provided with a slot 63 communicating from the side to the inside, and holds the electronic cassette 13 inserted into the slot 63. The slot 63 has either a vertical posture in which the long side direction of the electronic cassette 13 is orthogonal to the long side direction of the cassette holder 62 or a horizontal posture in which the long side direction of the electronic cassette 13 is along the long side direction of the cassette holder 62. It is formed in a substantially L shape so that the electronic cassette 13 can be mounted even in the mounting posture.

  When the electronic cassette 13 is in the vertical posture, the side surface 26c formed with the take-out port 28b is exposed to the outside through the opening of the slot 63, and the side surface 26d formed with the take-out port 29b is exposed to the outside. To the cassette holder 62. As a result, the electronic cassette 13 is exposed to the outside through the slot 63 so that one of the outlets 28b and 29b is exposed to the outside.

  As described above, most of the photographing tables are of the slot type in which the attachment portion (the tray 21 or the cassette holder 62) to which the electronic cassette 13 is attached exposes the side surface of the housing 26 when the electronic cassette 13 is attached. Therefore, by providing the battery outlets 28b and 29b on the side surfaces 26c and 26d of the casing 26, it is possible to correspond to various types of photographing stands.

  In the above example, the electronic cassette 13 is used by being attached to the imaging stand. However, when the electronic cassette 13 is attached to the imaging stand, it is difficult to take an image of a part that is difficult to take an image or to move to the imaging room. When photographing the subject H, the electronic cassette 13 is used without being attached to the photographing stand. As will be described below, even when the electronic cassette 13 is used alone without being attached to the photographing stand, the electronic cassette 13 of the present invention has an effect that cannot be obtained with a conventional electronic cassette.

  As shown in FIGS. 11 and 12, when the electronic cassette 13 is attached to the imaging stand, it is difficult to take an image. When taking an image of an elbow or a knee joint, for example, on the top plate 16 of the supine position imaging stand 12 Thus, the subject H and the electronic cassette 13 are positioned. As shown in FIG. 11, when photographing the knee, the electronic cassette 13 is inserted between the subject H and the top board 16 with the irradiation surface facing upward. If such positioning is performed, the take-out port 28b of the battery mounting portion 28 is blocked by the leg of the subject H, so that the battery replacement of the battery unit 27 is performed in the battery mounting portion 28 as indicated by the x mark. I can't. However, since the outlet 29b of the other battery mounting portion 29 is exposed to the outside without being blocked by the body of the subject H, when the remaining amount of the battery unit 27 has run out, The imaging can be continued by replacing the battery unit 27 of the battery mounting portion 29 without breaking the posture of the subject H or the electronic cassette 13.

  As shown in FIG. 12, when photographing the elbow, the electronic cassette 13 is placed on the top plate 16 with the irradiation surface facing upward, and a test object is placed on the irradiation surface of the electronic cassette 13. The elbow of person H is placed. When the subject H takes such a posture, the takeout port 29b of the battery mounting portion 29 is exposed to the outside, but the body of the subject H is located in front of the takeout port 29b. It becomes an obstacle and it is difficult to access the takeout port 29b. For this reason, it is difficult to replace the battery of the battery mounting portion 28 unless the posture of the subject H is lost. However, since there is no obstacle such as the body of the subject H in front of the outlet 28b of the other battery mounting portion 28, the posture of the subject H or the electronic cassette 13 is broken through the battery mounting portion 28. The battery unit 27 can be replaced without any trouble.

  As shown in FIGS. 13 and 14, when photographing a subject H who is difficult to move to the photographing room, the technician G and the electronic cassette 13 and the subject are placed on the top plate of a bed 66 such as a hospital room. The examiner H is positioned. In the example of FIG. 13, in order to photograph the waist of the subject H, the electronic cassette 13 is inserted between the subject H and the bed 66 with the irradiation surface facing upward. In this example, the take-out port 29b of the battery mounting portion 29 is blocked by the leg of the subject H, and the battery mounting portion 29 cannot replace the battery of the battery unit 27. However, since the outlet 28b of the other battery mounting portion 28 is exposed to the outside without being blocked by the body of the subject H, the posture of the subject H or the electronic cassette 13 is destroyed. The battery unit 27 of the battery mounting portion 28 can be replaced.

  As shown in FIGS. 11 to 13, when the electronic cassette 13 is used alone without using the imaging stand, the body of the subject is often placed across the electronic cassette. If one take-out port is provided on each of two orthogonal side surfaces, there is a high possibility that the other take-out port can be accessed even when one take-out port is closed.

  In addition, since the electronic cassette 13 is formed with the extraction ports 28b and 29b having openings that can be accommodated on the side surface of the housing 26, the outer peripheral surface of the battery unit 27 is not exposed to the irradiation surface or the back surface. Therefore, when the electronic cassette 13 is used while being placed on the bed 66 with its irradiation surface facing upward, the outer peripheral surface of the battery unit 27 is placed on the body of the subject on the irradiation surface or the bed 66 on the back side. Since the battery unit 27 can be attached and detached without causing interference, it is easy to attach and detach from the side.

  The example of FIG. 14 is an example in which photographing is performed while the subject H lying on the bed 66 holds the electronic cassette 13 with the one side surface 26d of the housing 26 facing downward. In this case, since the take-out port 29b of the battery mounting portion 29 formed on the side surface 26d is blocked by the top plate of the bed 66, the battery unit 27 of the battery mounting portion 29 cannot be replaced. However, since the take-out port 28b of the other battery mounting part 28 is exposed to the outside, the battery can be replaced without breaking the posture of the subject H or the electronic cassette 13.

  Further, as shown in FIG. 15, as an example of using the electronic cassette 13 without being attached to the photographing stand, the electronic cassette 13 is connected to the backrest 67 a of the wheelchair 67 while the subject H is placed on the wheelchair 67. In some cases, the camera is inserted between persons H. When performing such photographing, in addition to the two outlets 28b and 29b being provided on the two side surfaces 26c and 26d of the housing 26 as in the electronic cassette 13, the two battery mounting portions 28 and 29 are provided. However, if it is disposed at diagonal positions on the irradiation surface 26a and the back surface 26b of the housing 26, the battery is passed through any one of the battery mounting portions 28 and 29 regardless of the insertion posture of the electronic cassette 13, as will be described below. The unit 27 can be exchanged.

  16 showing the electronic cassette 13 of this example and FIG. 17 showing the electronic cassette 70 in which the two battery mounting portions 71 and 72 are not diagonally positioned, the electronic cassette is inserted between the backrest 67a of the wheelchair 67 and the subject H. 13 and 70 are inserted into a horizontal posture in which the side surfaces in the longitudinal direction of the electronic cassettes 13 and 70 are directed upward, and a vertical posture in which the side surfaces in the short direction of the electronic cassettes 13 and 70 are directed upward. is there.

  When the electronic cassette 70 shown in FIG. 17 is in the horizontal position, even if the takeout port of one battery mounting portion 71 is hidden by the seat surface 67c, the takeout port of one battery mounting portion 72 is externally attached from above the armrest 67b. Thus, the battery unit 27 can be exchanged through the battery mounting portion 72. However, in the case of the vertical posture, both the outlets of the two battery mounting portions 71 and 72 are hidden by the armrest 67b and the seating surface 67c, and the battery unit 27 can be replaced from either battery mounting portion 71 or 72. It may not be possible.

  On the other hand, in the electronic cassette 13 of this example shown in FIG. 16, the takeout port of one battery mounting part is hidden by the armrest 67b and the seating surface 67c regardless of the insertion posture, but the two battery mounting parts 28 , 29 are arranged at diagonal positions, so that the take-out port of the other battery mounting portion is exposed to the outside in both the horizontal posture and the vertical posture. The battery unit 27 can be replaced.

  Further, when the electronic cassette 13 is placed in a diagonal orientation, the two battery units 27 mounted on the battery mounting portions 28 and 29 are connected to the irradiation surface of the electronic cassette 13 and the electronic cassette 13 regardless of the vertical or horizontal posture. It will be arranged at the left and right ends on the back. If the relatively heavy battery units 27 are arranged at the left and right ends, the electronic cassette 13 is well balanced and easy to handle.

  As shown in FIG. 18, in the electronic cassette 70, although the two battery mounting portions 71 and 72 are not diagonal positions, they are respectively arranged at two corner portions of the four corner portions of the irradiation surface. And arranged at both ends of one side of the four sides of the irradiation surface. Similarly to the electronic cassette 13, the outlets 71a and 72a of the battery mounting portions 71 and 72 are openings and are formed on two orthogonal side surfaces of the casing. The sockets 34 of the battery mounting portions 71 and 72 are arranged in directions orthogonal to each other, and the attaching / detaching directions of the battery mounting portions 71 and 72 are orthogonal.

  As described above, in the electronic cassette 70, the two battery mounting portions 71 and 72 are arranged at both ends of one side of the irradiation surface, and the battery unit 27 can be attached and detached from two orthogonal side surfaces of the housing. The same effects as those of the electronic cassette 13 can be obtained except for the effect obtained by arranging the two battery mounting portions at the diagonal positions.

[Second Embodiment]
In the electronic cassette 13 and the electronic cassette 70 according to the first embodiment, the example in which the outlet of the battery unit 27 is provided on two orthogonal side surfaces of the housing 26 and the battery unit 27 can be detached from the two orthogonal side surfaces has been described. However, like the electronic cassette 73 of the second embodiment shown in FIG. 19, the take-out ports 74 a and 75 a of the two battery mounting portions 74 and 75 may be provided on two opposite side surfaces arranged in parallel in the housing. Good. A socket 34 is provided in the back of the outlets 74a and 75a of the electronic cassette 73 in the same manner as the electronic cassettes 13 and 70. The electronic cassette 73 can attach and detach the battery unit 27 from two opposing side surfaces. .

  In the case where the outlets are provided on the two opposite side surfaces like the electronic cassette 73, one outlet from the holder or tray of the photographic stand is used regardless of the mounting position on the photographic stand like the electronic cassettes 13 and 70. The merit of exposing (see FIGS. 2 and 10) is lost. However, even in the electronic cassette 73, the battery unit 27 can be attached and detached from two different directions. Therefore, the battery unit 27 can be attached and detached more than the case where the outlet is provided on only one side surface. Is easy to replace.

  In addition, in the electronic cassette 73 of this example, although the battery mounting parts 74 and 75 are shown as examples arranged at the corners of the plane (irradiation surface and back surface) of the housing, the battery mounting parts 74 and 75 are shown as You may arrange | position not the corner | angular part but the center part of each edge | side which the plane of a housing | casing opposes.

[Third embodiment]
In the above embodiment, the electronic cassette to which the battery unit 27 having substantially the same length and width is mounted has been described as an example. However, the shape of the battery unit is not limited to the above embodiment, and for example, as shown in FIGS. The battery units 77 and 84 attached to the electronic cassettes 76 and 80 of the second embodiment may be elongated.

  Similar to the electronic cassette 13, the electronic cassette 76 shown in FIG. 20 has two battery mounting portions 78 and 79 arranged at diagonal positions in the plane. The outlets for the battery mounting portions 78 and 79 are respectively formed on two orthogonal side surfaces of the casing, and a socket 34 is provided at the back of each outlet. The electronic cassette 76 can be attached to and detached from two side surfaces orthogonal to the battery unit 77.

  As with the electronic cassette 76, the electronic cassette 80 shown in FIG. 21 has two battery mounting portions 81 and 82 arranged at diagonal positions on the plane, and the battery unit 84 can be attached and detached from two orthogonal side surfaces. It is. The difference between the electronic cassette 76 and the electronic cassette 80 is the mounting posture of the battery units 77 and 84, and the size of the outlet of the battery mounting portion differs depending on the mounting posture. The electronic cassette 76 is sized so that the outlets of the battery mounting portions 78 and 79 can take out the battery unit 77 from the surface in the short side direction (the narrow direction), whereas the electronic cassette 80 The take-out ports of the mounting portions 81 and 82 are sized so that the battery unit 84 can be taken out from the long side surface.

  In the electronic cassette 80, the width of the take-out port is wider than the width of the take-out port of the electronic cassette 76. Therefore, the take-out port is blocked by the body of the subject H compared to the electronic cassette 76. Cheap. As shown in FIG. 21, the outlet of the battery mounting portion 81 of the electronic cassette 80 is completely closed by the legs of the subject H, and the other battery mounting portion 82 is also covered by the legs of the subject H. Some parts are blocked and the battery cannot be replaced without removing the legs. On the other hand, if the outlet is narrow like the battery mounting portion 78 of the electronic cassette 76 shown in FIG. 20, the outlet is not blocked, so one battery mounting portion 79 is blocked. However, the battery can be replaced through another battery mounting portion 78.

  Therefore, when an elongated battery unit is used, the size of the outlet of each battery mounting portion 78, 79 should be such that the battery unit 77 can be attached and detached from the short side direction, like the electronic cassette 76. Is preferred. Thereby, since the taking-out port becomes narrow, the case where the taking-out port is blocked and the battery cannot be replaced can be reduced.

  In addition, as the elongated battery unit, in addition to the battery unit having a prismatic case having a square cross section like the battery units 77 and 84 of this example, the battery unit has a cylindrical case having a circular cross section. A battery unit may be sufficient, and the elongate battery unit which wound the sheet-like battery unit and made the rod-shaped form may be sufficient.

[Fourth embodiment]
Similar to the electronic cassette 76 of the third embodiment shown in FIG. 20, the electronic cassette 86 shown in FIG. 22A includes two battery mounting portions 88 in the housing 87, and the two battery mounting portions 88 The battery unit can be attached and detached from two different directions. The difference between the electronic cassette 86 and the electronic cassette 76 is that two battery outlets 88a and 88b having different attachment / detachment directions are provided for one battery mounting portion 88.

  The two outlets 88a and 88b are respectively provided on two side surfaces 87a and 87b which are orthogonal to each other and are adjacent to each other in the casing 87. In this way, even if one of the two outlets 88a and 88b is closed when positioning, the other one may be used, so the battery can be easily replaced. The take-out port 88a has a size that allows the elongated battery unit 89 to be taken out from the surface in the short side direction, and the take-out port 88b has a size that allows the elongated battery unit 89 to be taken out from the surface in the long side direction.

  The casing 87 is provided with lids 88c and 88d for opening and closing the respective outlets 88a and 88b. The battery mounting portion 88 includes a spring-shaped electrode 90 as an electrical connection portion instead of the socket 34, and the battery unit 89 is mounted in a state in which the battery unit 89 is urged toward the extraction port 88 a by the electrode 90. Stored in the portion 88. When the lid 88c is opened, the battery unit 89 protrudes from the take-out port 88a by the biasing force of the electrode 90. The outlet 88b is provided with a notch for inserting a finger so that the battery unit 89 can be grasped and taken out by the finger.

  Furthermore, as shown in FIG. 22B, in addition to the takeout ports 88a and 88b formed on the side surfaces 87a and 87b, a third takeout port 88e is formed on the irradiation surface of the housing 87, as shown in FIG. May be. The take-out port 88e is opened and closed by a lid 88f. This makes it possible to remove one battery mounting portion 88 from three directions, so that the battery can be replaced more easily.

[Fifth Embodiment]
In the above-described embodiment, an example in which two battery mounting portions having one connection portion (socket 34 and electrode 90) are provided has been described. However, like an electronic cassette 91 shown in FIG. Two connecting portions (sockets 34) may be provided. The electronic cassette 91 is the same as the electronic cassette 13 except for the battery mounting portion 92. The same parts are denoted by the same reference numerals, description thereof is omitted, and differences will be described below.

  In the electronic cassette 91, one battery mounting portion 92 is provided at a corner portion where side surfaces 93c and 93d arranged along the long side and short side direction of the plane (irradiation surface 93a and back surface 93b) of the housing 93 are connected. ing. The battery mounting portion 92 includes one battery storage chamber 92a and two sockets 34 provided in the battery storage chamber 92a.

  The size of the battery storage chamber 92 a is a size that can accommodate one battery unit 27, and the shape thereof is formed in accordance with the outer shape of the battery unit 27. The battery storage chamber 92a is formed on the side surfaces 93c and 93d and has two outlets 92b and 92c for attaching and detaching the battery unit 27. Sockets 34 are provided in the back of the outlets 92b and 92c, respectively. The two sockets 34 are arranged in directions substantially orthogonal to each other so that the battery unit 27 can be attached and detached from the two directions of the side surfaces 93c and 93d.

  In addition, the battery storage chamber 92 a can accommodate the battery unit 27 in a state where the outer surface of the battery unit 27 does not protrude from the outer surface of the housing 93 when the connector 31 is connected to each of the sockets 34. Have

  As in the case of the electronic cassette 91, even in a form in which two sockets 34 are provided in one battery mounting portion 92 and the outlets 92b and 92c are provided in two orthogonal side surfaces 93c and 93d, the mounting posture of the electronic cassette 91 to the imaging stand Regardless of (vertical posture and horizontal posture), one of the outlets 92b and 92c of the battery unit 27 is exposed to the outside through the tray 21 (FIG. 3) and the opening of the holder 62 (FIG. 10).

  For this reason, when the battery unit 27 is mounted on the battery mounting portion 92, depending on the mounting posture, by using the two sockets 34 in different directions in the battery storage chamber 92a, the electronic cassette 91 is mounted on the photographing stand, The battery unit 27 can be easily replaced. In addition, since there are a plurality of outlets 92b and 92c and the battery unit 27 can be attached and detached from two directions orthogonal to each other, even when the electronic cassette 91 is used without being attached to the photographing stand, either outlet is used. Since it is highly possible, the battery unit 27 can be easily replaced.

  Furthermore, since the electronic cassette 91 is provided with only one battery mounting portion 92 that can store one battery unit 27, the battery mounting portion is compared with the case where a plurality of battery mounting portions are provided as in the electronic cassette 13. Because of the small number, there is less pressure on the housing space for other built-in parts in the housing.

  Further, like the battery mounting portion 97 of the electronic cassette 96 shown in FIG. 24, the takeout port may be formed by a notch instead of an opening. In the battery mounting portion 97, the battery storage chamber and the take-out port are configured by a notch 97 a in which a part of the irradiation surface 98 a and the side surfaces 98 c and 98 d is notched in the corner portion of the housing 98. The electronic cassette 96 is the same as the electronic cassette 91 except that the battery storage chamber and the take-out port are formed by the notches 97a, and the battery unit 27 is separated from the two side surfaces 98c and 98d by properly using the two sockets 34. Can be attached and detached.

  The notch 97a of the battery mounting portion 97 is not limited to the shape in which the irradiation surface 98a and the two side surfaces 98c and 98d are cut out, but the back surface 98b and the two side surfaces 98c and 98d, or two The shape which notched only two surfaces 98c and 98d may be sufficient. Further, the battery mounting portion of each electronic cassette of the first to fifth embodiments may be formed by notching like the battery mounting portion 97.

[Sixth Embodiment]
In addition, as in the electronic cassette 101 illustrated in FIG. 25, the battery mounting portions 103 and 104 may be provided at both ends of one of the four sides of the plane (irradiation surface 102 a and back surface 102 b) of the housing 102. The two battery mounting portions 103 and 104 are formed at corners located at both ends of one side surface 102 c along the long side of the plane of the housing 102. The outlets 103a and 104a of the battery mounting portions 103 and 104 are both formed on one side surface 102c.

  The electronic cassette 101 is the same as the electronic cassette 70 (FIG. 18) in that two battery mounting portions 103 and 104 are provided at both ends of one side of the plane, but the electronic cassette 70 includes two battery mounting portions 71, The electronic cassette 101 differs in that the orientation of the socket 34 provided in each of the battery mounting portions 103 and 104 is the same. That is, in the electronic cassette 101, the two battery mounting portions 103 and 104 have the same attaching / detaching direction, and the battery unit 27 cannot be attached / detached from different directions.

  However, since the two battery mounting portions 103 and 104 are provided with respective outlets 103a and 104a at both end portions of the side surface 102c, compared with the electronic cassette described in the conventional Patent Document 4, the positioning after the positioning is performed. The battery unit 27 can be easily replaced. This is because, in the electronic cassette described in Patent Document 4, two outlets are formed in the vicinity of the central portion of one side of the housing plane, and the interval between the two outlets is narrow and both are substantially. Is equivalent to being provided in one place. Therefore, when one extraction port is blocked by the body of the subject, the other is highly likely to be blocked, and when one cannot be used, the other is unlikely to be used.

  On the other hand, in the electronic cassette 101, since the outlets 103a and 104a of the two battery mounting portions 103 and 104 are arranged at both ends of the side surface 102c, the interval between the outlets 103a and 104a is determined by the housing. It is free for a distance close to the length of one side. Therefore, in the state where the subject and the electronic cassette 101 are positioned, even if one extraction port is blocked by the body of the subject H, it is highly possible that the other extraction port is not blocked. Compared to the electronic cassette described in Document 4, when one cannot be used, the other is likely to be used.

  As described above, the electronic cassette 101 is easier to replace the battery unit than the electronic cassette described in Patent Document 4 without destroying the positioned posture. And the electronic cassette 101 of this embodiment and the electronic cassette of each said embodiment which can attach or detach a battery unit from two different directions destroy the positioning attitude | position in contrast with the electronic cassette of patent document 4. It has the same technical significance that it is easy to replace the battery unit without any problem.

  The form of the battery mounting portion of the electronic cassette of the present invention is not limited to the above embodiment, and various modifications can be made. For example, in each of the first to fourth and sixth embodiments, the example in which two battery mounting portions are provided has been described, but three or more may be used. Further, as shown in the electronic cassette 86 (FIG. 22) of the fourth embodiment, the takeout port of the battery mounting portion is not limited to the side surface of the housing, and may be formed on the irradiation surface or the back surface. In addition, in the electronic cassettes 91 and 96 of the fifth embodiment, an example in which two connection portions (socket 34 and electrode 90) having different attachment / detachment directions are provided in one battery mounting portion has been described, but there are three or more connection portions. It may be provided. Moreover, although the said embodiment demonstrated the example (plane and irradiation surface and back surface) of a housing | casing as a rectangle, a plane may be a square. Furthermore, you may add the structure shown to the following embodiment to the said embodiment.

[Seventh embodiment]
The electronic cassette 111 shown in FIG. 26 has a priority setting for preferential use of the battery unit 27 designated by the user among the two battery units 27 mounted on the two battery mounting portions 28 and 29. It has a setting function. Since the electronic cassette 111 is the same as the electronic cassette 13 of the first embodiment except for the priority setting function, the same parts are denoted by the same reference numerals and description thereof is omitted.

  The electronic cassette 111 is provided with two designation switches 112 and 113 corresponding to the two battery mounting portions 28 and 29. The operation buttons 112a and 113a of the designation switches 112 and 113 are arranged in the vicinity of the outlets 28b and 29b of the battery mounting portions 28 and 29, respectively. When one of the operation buttons 112 a and 113 a is pressed, the one of the designation switches 112 and 113 that is operated is turned on, and the operation signal is output to the control unit 53. When an operation signal is input from one of the designation switches 112 and 113, the control unit 53 switches the selector 52a of the power supply circuit 52 to input the operation signal input source (designation switch 112, 113) is selected from one of the battery mounting portions 28 and 29 corresponding to (113). Thus, priority setting of the battery unit 27 is performed by the control unit 53. The control unit 53 is a priority setting unit that receives operation signals input from the designation switches 112 and 113 by a user's designation operation and performs priority setting.

  Specifically, when an operation signal is input from the designation switch 112, the control unit 53 sets the selector 52a so that the battery unit 27 mounted on the battery mounting unit 28 is preferentially used. Priority setting is performed by switching to the power supply path from the battery mounting unit 28. On the other hand, when an operation signal is input from the designation switch 113, the control unit 53 sets the selector 52a to the battery mounting unit so that the battery unit 27 mounted on the battery mounting unit 29 is used preferentially. Priority setting is performed by switching to the power supply path from 29. Thereby, the battery unit 27 of the battery mounting portions 28 and 29 corresponding to the selected power feeding path is preferentially used.

  When the priority setting is made, the lamp of the indicator 40 (see FIG. 3) corresponding to the battery mounting portion for which the designation operation has been performed is turned on and a message to that effect is displayed. By displaying priority designation with the indicator 40 provided in the electronic cassette 111, it is easy to check which battery unit 27 of the battery mounting portion 28, 29 is being used. In addition to the indicator 40, it may be displayed on the monitor 15 (see FIG. 1) of the console 14.

  Such a priority setting function is used as follows, for example. When only one of the two battery mounting portions 28 and 29 can take out the battery unit 27 (battery replacement) depending on the positioning state, the designation switch 112 is operated to switch the battery mounting portion 28. Specify priority. In response to the designation operation, the control unit 53 performs priority setting through the selector 52a. As a result, the replaceable battery unit 27 is consumed first, so that the capacity of the other battery unit 27 can be left for hot swapping.

  The electronic cassette 116 shown in FIG. 27 is the same as the electronic cassette 111 except that the method for specifying the priority setting function is different. Unlike the electronic cassette 111, the electronic cassette 116 does not have a dedicated operation member (operation buttons 112 a and 113 a) for performing priority designation operation, and the designation operation can be performed by changing the mounting position of the battery unit 27. Done.

  The battery mounting portions 28 and 29 of the electronic cassette 116 have two mounting positions, ie, a first position P1 and a second position P2, which are different in the amount of push-in from the outlets 28b and 29b as mounting positions of the battery unit 27. . The second position P2 is less pushed than the first position P1, and when the battery unit 27 is in the second position P2, a part of the second position P2 protrudes from the outlets 28b and 29b.

  The battery mounting portions 28 and 29 include a latch mechanism 117 that fixes the mounting positions at the respective positions P1 and P2 by engaging with the battery unit 27. The latch mechanism 117 has a spring that urges the battery unit 27 toward the outlets 28b and 29b, and the battery unit 27 is connected to the battery unit 27 at each of the mounting positions P1 and P2 against the urging of the spring. Engage and fix. For example, the latch mechanism 117 is fixed at the first position P1 when the battery unit 27 is pushed in from the take-out ports 28b and 29b, fixed at the second position P2 when pushed once more, and further pushed once again. The engagement is released and the battery unit 27 can be taken out.

  The priority designation operation is performed by setting the mounting position of the battery unit 27 to the second position. Designated switches 118 are provided on the battery mounting portions 28 and 29. The designation switch 118 is composed of, for example, a photo sensor or a micro switch, and is turned on when it is detected whether or not the battery unit 27 is at the second position P2 and is detected at the second position P2. When the designation switch 118 is turned on, an operation signal is output to the control unit 53. The control unit 53 performs priority setting by switching the power feeding path with the selector 52a in accordance with the input operation signal.

  The priority designation operation is performed by setting the mounting position of the battery unit 27 to the second position P2. The priority designation is displayed by the indicator 40 (see FIG. 3). The priority designation display may be performed with an indicator 119 provided in the battery unit 27 as shown in FIG. In the second position P2, a part of the battery unit 27 protrudes from the takeout port and is exposed to the outside. The indicator 119 is provided in this exposed portion, and lights up when a priority designation operation is performed to bring the battery unit 27 to the second position P2. The indicator 119 is lit to notify that a priority designation operation has been performed.

  In this example, the priority designation operation has been described by changing the mounting position of the operation button provided on the electronic cassette or the battery unit 27 mounted on the electronic cassette. However, the console 14 (see FIG. 1), the remote controller, etc. The priority designation operation may be performed from the external device. When using the console 14, a designation screen for designating one of the two battery mounting portions of the electronic cassette is displayed on the operation screen displayed on the monitor 15. When a priority designation operation is performed on the designation screen, an operation signal including identification information of the designated battery mounting unit is transmitted from the console 14 to the electronic cassette. The control unit 53 receives an operation signal input from the console 14 via the wireless communication unit 59, and performs priority setting through the selector 52a. The priority designation operation from an external device such as the console 14 may be used together with the priority designation operation by changing the operation position of the electronic cassette or the mounting position of the battery unit 27.

[Eighth embodiment]
In addition to the battery unit 122 that is detachably mounted on the battery mounting portions 28 and 29 as in the electronic cassette 121 shown in FIG. 29, a spare battery 123 built in the housing may be provided. Further, the wireless communication unit 124 may be provided in the battery unit 122 instead of being provided in the housing. The electronic cassette 121 is the same as the electronic cassette 13 of the first embodiment except that the electronic cassette 121 has a spare battery 123 and the wireless communication unit 124 is provided in the battery unit 122. Reference numerals are assigned and description is omitted. The differences will be described below.

  When the battery unit 122 is not attached to the battery attachment portions 28 and 29, or when the battery unit 122 is exhausted, the spare battery 123 is replaced with each part in the electronic cassette 13 instead of the battery unit 122. To supply power. As a result, the battery unit 122 that is being activated can be replaced (hot swapped).

  The spare battery 123 is composed of a secondary battery or a capacitor, and is connected on a power feeding path on the downstream side of the selector 52a. Thus, the spare battery 123 is charged by the power supply from the battery unit 122 while the battery unit 122 is mounted on the battery mounting portions 28 and 29, and the battery unit 122 is removed from the battery mounting portions 28 and 29. Or when the battery unit 122 runs out of power, it automatically switches to power supply from the spare battery 123. When the spare battery 123 is provided only for hot swapping, the spare battery 123 may have a capacity required to guarantee the operation of the electronic cassette 13 until the battery unit 122 is replaced. .

  The wireless communication unit 124 includes an antenna and a communication circuit that transmit and receive radio waves, similarly to the wireless communication unit 59 (FIG. 8). Since the battery mounting portions 28 and 29 are formed with the outlet of the battery unit 122 on the side surface of the casing, a part of the outer peripheral surface of the battery unit 122 is exposed from the outlet and is shown in FIGS. 3 and 10. As described above, even when the electronic cassette 121 is attached to the photographing stand, the takeout port is exposed from the photographing stand to the outside. By providing the wireless communication unit 124 in the battery unit 122 exposed to the outside, it is possible to prevent an adverse effect caused by a shielding object that shields radio waves and secure a good communication state, compared to the case where the battery unit 122 is provided inside the housing. it can.

[Ninth Embodiment]
As shown in FIG. 30, an indicator 127 may be provided in the battery unit 126. Similar to the indicator 40, the indicator 127 notifies the remaining amount information of the battery unit 126 and an error message indicating the remaining amount. The indicator 127 is constituted by an indicator lamp composed of a plurality of LEDs, a liquid crystal panel, and the like, like the indicator 40. Instead of the lamp or the liquid crystal panel, a speaker for displaying a message by voice may be provided. In the case of a speaker, for example, a plurality of types of messages are notified by changing the rhythm of the buzzer sound. By providing the indicator 127 in the battery unit 126, the indicator 127 is not hidden in the back of the photographing stand even when attached to the photographing stand, so that the visibility of the indicator 127 can be ensured.

[Tenth embodiment]
Like the electronic cassette 131 shown in FIGS. 31 and 32, a double door 133 having a pair of lid members 133 a and 133 b may be provided at the take-out port 132 a of the battery mounting portion 132. The electronic cassette 131 is the same as the electronic cassette 13 except for the lid 133, and the battery mounting portion 132 has an extraction port 132 a formed on the side surface 134 a of the housing 134, similar to the battery mounting portions 28 and 29. In addition, a storage chamber 132b provided with a socket 34 is provided at the back of the take-out port 132a.

  The lid members 133a and 133b are pivotally supported at the opening edges on both sides of the extraction port 132a, respectively, and rotate toward the closed position that closes the extraction port 132a and the inside of the extraction port 132a. It can be freely opened and closed between the open position where 132a is opened. The lid members 133a and 133b are urged to the closed position by an urging member (not shown).

  When the battery unit 27 is mounted on the battery mounting portion 132, as shown in FIG. 32A, when the lid members 133a and 133b are pressed by the end face of the connector 31, the lid member 133a is resisted against the bias of the biasing member. 133b rotate from the closed position to the open position (the state shown in FIG. 32B). As a result, the battery unit 27 enters the storage chamber 132b from the outlet 132a, the connector 31 and the socket 34 are connected, and the battery unit 27 is stored in the storage chamber 132b (state shown in FIG. 32C). .

  When the battery unit 27 is not mounted, the battery mounting portion 132 can prevent entry of dust and the like into the storage chamber 132b because the take-out port 132a is closed by the lid members 133a and 133b. The lid 133 is particularly effective when there are two battery mounting portions. This is because when there are two battery mounting portions, the battery unit 27 is mounted only on one battery mounting portion, and the other battery mounting portion is empty (the battery unit 27 is not mounted). In some cases, electronic cassettes are used. This is because, in such a case, by providing the lid 133, it is possible to prevent dust from entering the empty battery mounting portion.

  Moreover, the lid 133 opens and closes in conjunction with the attachment / detachment operation of the battery unit 27 so that it opens when the battery unit 27 is pushed into the storage chamber 132b and closes when the battery unit 27 is taken out. Compared with the lid of such a form, an operation dedicated to opening and closing the lid becomes unnecessary, and the operability is also good.

[Eleventh embodiment]
Further, a guide part for guiding the attaching / detaching direction of the battery unit 138 may be provided like the battery mounting part 137 of the electronic cassette 136 shown in FIG. Guide pieces 138a and 138b extending along the attaching / detaching direction are provided on both side surfaces of the battery unit 138 in the left-right direction, and the guide grooves 137a and 137b with which the guide pieces 138a and 138b engage are provided in the battery mounting portion 137. Is formed. The movement direction of the battery unit 138 is guided along the direction of the guide grooves 137a and 137b by the engagement of the guide pieces 138a and 138b and the guide grooves 137a and 137b. Note that a guide piece may be provided in the battery mounting portion, and a guide groove may be provided in the battery unit. The guide piece and the guide groove may be provided only on one side of the battery unit.

  The present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the invention. You may combine all or one part of said each embodiment. Moreover, although this invention demonstrated the X-ray as an example to a radiation, this invention may use radiation other than X-rays, such as a gamma ray.

  Moreover, according to the embodiment described above, the following invention can also be grasped.

[Additional Item 1]
A detection unit that detects radiation images by receiving radiation that has passed through the subject;
A housing that accommodates the detection unit and receives the radiation, the shape of the plane is substantially rectangular;
First and second battery mounting portions, which are detachably mounted to a battery unit that is provided in the housing and supplies power to the detection unit, and stores the battery unit. First and second battery mounting portions each having a battery storage portion having a take-out port for attachment and detachment, and a connection portion electrically connected to the battery unit stored in the battery storage portion;
Priority setting means for performing setting so that the battery unit designated by the input of the operation signal is used preferentially among the two battery units mounted on the first and second battery mounting portions. A portable radiographic image detection device.
[Additional Item 2]
The portable radiological image detection apparatus according to claim 1, further comprising an indicator for displaying the battery unit set by the priority setting means.
[Additional Item 3]
The portable radiographic image detection apparatus according to claim 1 or 2, wherein an operation member for inputting the operation signal to the priority setting means is provided in a casing.
[Additional Item 4]
The first and second battery mounting portions are electrically connected to the battery unit at the first and second mounting positions where the push-in amounts of the battery unit from the first and second outlets are different. Connection is possible,
The second mounting position is a mounting position where the pushing amount is smaller than that of the first mounting position and the battery unit is mounted in a state in which a part of the battery unit protrudes from the take-out port.
A switch that is turned on when the battery unit is in the second mounting position and is turned off when the battery unit is in the first mounting position; and the priority setting means receives an operation signal from the designation switch. The portable radiographic image detection apparatus according to the additional item 1 or 2, wherein the setting is performed by the following.
[Additional Item 5]
In the portable radiographic image detection device according to supplementary note 4, which cites the supplementary note 2,
The indicator is an outer periphery of the battery unit, and is provided in an exposed portion that protrudes from the extraction port and is exposed to the outside when the battery unit is in the second mounting position. Portable radiographic image detection device.
[Additional Item 6]
The portable image detection device according to any one of additional items 1 to 5, wherein the priority setting unit performs setting by an operation signal input from an external device.

DESCRIPTION OF SYMBOLS 10 X-ray imaging system 12 Supine imaging stand 13,70,73,76,80,86,91,96,101,111,116,121,131,136 Electronic cassette (portable radiographic image detection apparatus)
21 Tray 26, 87 Case 26a, 26b, 26c, 26d Side 27, 77, 84, 89 Battery unit 28, 29, 71, 72, 79, 78, 81, 82, 88 Battery mounting portion 28a, 29a Storage chamber 28b , 29b, 88a, 88b, 92b, 92c, 104a, 132a Extraction port 30 FPD (detection unit)
34 Socket (connection part)
40, 119, 127 Indicator 41, 117 Latch mechanism 41a Spring (biasing means)
41b Operation button (release operation member)
53 Control unit (priority setting means)
59,124 Wireless communication unit 60 Standing photographing stand 88c, 88d, 88f, 133 Lid 90 Electrode (connection part)
92, 93, 98 Designated switch 92a, 93a Operation button 123 Spare battery

Claims (23)

A detection unit that detects radiation images by receiving radiation that has passed through the subject;
A housing that accommodates the detection unit and receives the radiation, the shape of the plane is substantially rectangular;
A battery mounting portion provided in the housing and detachably mounted with a battery unit for supplying power to the detection unit;
The battery mounting unit is electrically connected to at least one battery storage unit that stores the battery unit and has a take-out port for attaching and detaching the battery unit, and the battery unit stored in the battery storage unit. The first and second connection portions, each of which is arranged in a different direction, or arranged in the same direction at both ends of one side of the plane. A portable radiological image detection apparatus.   The extraction port is an opening formed in one surface of the housing or a notch formed by cutting out a part of two or more surfaces orthogonal to the housing. Item 2. The portable radiographic image detection apparatus according to Item 1.   The portable radiographic image according to claim 1 or 2, wherein the first and second connection portions are arranged in different directions so that the battery unit can be attached and detached from two different directions. Detection device. The housing has four side surfaces extending along each side of the plane,
4. The portable radiographic image detection apparatus according to claim 3, wherein the two different directions are directions corresponding to two of the four side surfaces.   The portable radiation image detection apparatus according to claim 4, wherein the two side surfaces are a first side surface and a second side surface orthogonal to each other.   The plane is a rectangle, the first side surface is a side surface extending along a long side of the plane, and the second side surface is a side surface extending along a short side of the plane. Item 6. The portable radiographic image detection device according to Item 5. The battery mounting part has first and second battery mounting parts,
The first battery mounting portion includes the first connection portion and a first battery storage portion that is the battery storage portion in which the first connection portion is disposed.
The said 2nd battery mounting part consists of a said 2nd connection part and a 2nd battery storage part which is the said battery storage part by which the said 2nd connection part is arrange | positioned, The any one of Claims 4-6 The portable radiographic image detection apparatus according to claim 1.   The portable radiographic image detection apparatus according to claim 7, wherein the take-out ports of the first and second battery mounting portions are arranged at diagonal positions on the plane.   9. The portable radiographic image detection apparatus according to claim 7, wherein at least one of the first and second battery storage units has a plurality of extraction ports in which the attachment and detachment directions of the battery unit are different. The battery mounting part is one,
The portable radiographic image detection apparatus according to any one of claims 4 to 6, further comprising one battery storage unit in which the first and second connection units are arranged.   The portable radiographic image detection apparatus according to claim 10, wherein the battery mounting unit is disposed at a corner corresponding to one of the four apexes of the plane.   12. The portable radiographic image detection apparatus according to claim 11, wherein the first and second connection portions are arranged in directions substantially orthogonal to each other in the battery storage portion.   The battery mounting portion can be mounted with the elongated battery unit, and the take-out port is capable of detaching the battery unit from a surface in a short side direction. The portable radiographic image detection apparatus of any one of Claims.   The portable radiographic image detection apparatus according to any one of claims 1 to 13, wherein the casing is sized in accordance with international standard ISO 4090: 2001.   The portable radiographic image detection apparatus according to claim 1, wherein the battery storage unit can store the battery unit without protruding from an outer peripheral surface of the housing.   The spare battery which supplies the said electric power instead of the said battery unit when the said battery unit is removed from the said battery mounting part is provided, The any one of Claims 1-15 characterized by the above-mentioned. Portable radiological image detection device.   The portable radiographic image according to any one of claims 1 to 16, further comprising an openable / closable lid that closes the extraction port when the battery unit is not attached to the battery attachment portion. Detection device.   18. The battery storage portion includes a guide portion that engages with a concave portion or a convex portion provided in the battery unit and guides the battery unit in an attaching / detaching direction. 2. The portable radiographic image detection apparatus according to item 1. The battery mounting part can be simultaneously mounted with two battery units connected to the first and second connection parts, respectively.
The apparatus according to any one of claims 1 to 18, further comprising priority setting means for performing setting so that a specified battery unit of the two battery units is preferentially used by input of an operation signal. 2. The portable radiographic image detection apparatus according to item 1.   The portable radiographic image detection apparatus according to claim 19, further comprising an indicator for displaying the battery unit set by the priority setting means. The battery mounting portion is a biasing means that biases the battery unit in the battery storage portion toward the outlet.
2. A latch mechanism that engages with the battery unit and fixes the position of the battery unit when the battery unit is pushed to a mounting position against the biasing means. The portable radiographic image detection apparatus according to any one of -20. The battery unit is provided with a wireless communication unit,
The portable radiation according to any one of claims 1 to 21, further comprising a control unit that controls the wireless communication unit to output the radiation image detected by the detection unit to the outside. Image detection device. The housing is detachably attachable to an imaging stand for imaging a subject in a standing posture or a lying posture with at least one of the side surfaces exposed to the outside. Item 23. The portable radiographic image detection device according to any one of Items 1 to 22.

Images