JP5156131B2 - Electronic cassette, electronic cassette body incorporated in electronic cassette, and casing for housing electronic cassette body - Google Patents

Description

The present invention comprises a casing for accommodating detect radiation transmitted through the object, an electronic cassette of the radiation that the detected with a radiation detector for converting the radiation image information, the electronic cassette body and the electronic cassette body incorporated in the electronic cassette About.

  2. Description of the Related Art In the medical field, radiation image capturing systems that irradiate a subject with radiation and guide the radiation transmitted through the subject to a radiation detector to capture radiation image information are widely used. As the radiation detector, a conventional radiation film in which the radiation image information is exposed and recorded, or radiation energy as the radiation image information is accumulated in a phosphor, and the radiation image information is obtained by irradiating excitation light. A stimulable phosphor panel that can be extracted as stimulated emission light is known. These radiation detectors supply the radiation film on which the radiation image information is recorded to a developing device to perform development processing, or supply the storage phosphor panel to a reading device to perform reading processing. A visible image can be obtained.

  On the other hand, in an operating room or the like, it is necessary to be able to immediately read out and display radiation image information from a radiation detector after imaging in order to perform a quick and accurate treatment on a patient. Radiation detection using a solid state detector that converts radiation directly into an electrical signal, or converts radiation into visible light with a scintillator, and then converts it into an electrical signal and reads it out A vessel has been developed.

  The radiation detection apparatus incorporating the radiation detector is classified into a stationary type installed at a predetermined position as a part of the radiographic imaging system and a portable type (cassette type) that is portable. The latter cassette-type radiation detection device (hereinafter simply referred to as an electronic cassette) is required to reduce the weight of the radiation detector in order to improve portability, while the external load such as a load and a drop impact applied by a patient during imaging is desired. Strength that can withstand the load is required.

  Conventionally, a workflow has been proposed in which an electronic cassette body is provided with a detachable casing, and the casing of the electronic cassette body is attached and detached according to the shooting type.

  Patent Document 1 discloses an apparatus in which an electronic cassette main body is built in a casing so that it can be taken out with a rail or the like, thereby making it easy to remove the shock absorber and improving maintainability.

  Further, Patent Document 2 provides the electronic cassette with portability, operability for insertion into a bed, and the like by providing an elastic body for shock absorption on the surface of the electronic cassette body and a detachable casing surrounding the side surface. An improved apparatus is disclosed.

  Further, Patent Document 3 discloses an apparatus in which the electronic cassette body is provided with impact resistance, vibration resistance, and waterproof resistance by providing a removable impact absorbing means on each side of the side surface of the electronic cassette body. doing.

  Further, Patent Document 4 discloses a casing that houses an electronic cassette body that is easy to be placed under a heavy patient and suppresses the possibility that a portion that detects radiation is damaged.

JP 2002-31526 A Japanese Patent Laid-Open No. 2005-6806 JP 2006-6424 A JP 2006-293368 A

  In any of the devices according to Patent Documents 1 to 4 described above, when the casing is detached from the electronic cassette main body, the electronic cassette main body rubs against the opening or inner surface of the casing, so that the surface of the radiation detector is scratched. There is a risk.

  For example, carbon fiber reinforced plastics (hereinafter abbreviated as CFRP) are often used as the material for the imaging surface of the radiation detector. When scratches are generated on the surface of such a material, the carbon fiber may be exposed and become a beard-like scratch.

  When a scratch occurs on the detection surface side of the radiation detector, the amount of radiation detected at the site of the scratch becomes non-uniform, and scratch marks appear in the acquired radiation image. It can also have an effect. Such scratches are not limited to the corners of the radiation detector, but are likely to occur at locations where contact is repeated when the casing is attached or detached.

  Therefore, even if a protective film such as PET is pasted on the imaging surface of the radiation detector, repeated contact with the casing every time the electronic cassette body is used causes the protective film to be broken and a beard-like shape at the exposed portion. Scratches may occur.

  Further, when the electronic cassette is transported with the casing attached, contact with the inner wall of the casing occurs due to vibration or the like, and there is the same concern as when the casing is detached from the electronic cassette body.

The present invention has been made in consideration of such problems, and when the casing is attached to or detached from the electronic cassette body or when the electronic cassette body is transported with the casing attached, the surface of the radiation detector is provided. can scratch can be prevented from occurring, high reliability of durability and imaging properties and convenience in use stability of the housing or the like is ensured, moreover electronic cassette, incorporated in an electronic cassette having excellent portability It is an object of the present invention to provide an electronic cassette body and a casing for housing the electronic cassette body .

An electronic cassette according to the present invention includes an electronic cassette body that surrounds a radiation detector that uses a solid-state detection element that detects radiation transmitted through a subject and converts the radiation into radiation image information, and a casing into which the electronic cassette body is inserted. The casing has a rectangular casing body having an opening, a support portion is provided on the upper portion of the opening, a plurality of movable claws capable of moving forward and backward with respect to the opening portion are provided on the support portion, and the opening portion A plurality of protrusions are provided in the lower part, a first plurality of holes are provided in the upper part of the electronic cassette main body to engage the tips of the movable claws, and a second plurality of protrusions enter the lower part of the electronic cassette main body. Is provided with a hole portion.

  According to this invention, the protrusions provided on the casing engage with the plurality of second holes provided in the electronic cassette body, respectively, and the tips of the movable claws projecting from the casing into the plurality of first holes. Therefore, when the electronic cassette main body is stored in the casing main body, the storage stability is ensured and the portability is excellent. In addition, since the storage stability of the electronic cassette main body is ensured as described above, there is obtained a specific effect that the reliability of image diagnostics is increased without blurring of the captured radiographic image.

  The electronic cassette according to the present invention is characterized in that a slider for moving the movable claw forward and backward in the first hole of the electronic cassette body is provided in the casing body.

  According to the present invention, since the electronic cassette main body and the casing main body are integrated by the movable claw and the slider, the portability is excellent, the usability is improved, and the convenience of storage is improved.

  Furthermore, in the electronic cassette, it is desirable that the movable claw be urged by a spring that imparts a resilient force toward the first hole.

  According to this configuration, the casing main body and the electronic cassette main body can be integrated, and the electronic cassette main body can be easily taken out from the casing main body. As a result, the usability is improved.

  In the electronic cassette according to the present invention, the electronic cassette main body is held by the casing in a state where an incident surface on which radiation is incident is exposed from the opening.

  According to this invention, the effect that the shape of the casing is prevented from being reflected and the image diagnostic performance is improved can be obtained.

  In the electronic cassette, the electronic cassette body may be held on the casing so that the incident surface on which the radiation is incident faces the back surface of the casing.

Further, the casing is characterized in that an opening having a size exceeding the image detection area of the radiation detector using the solid state detection element is provided on a plane perpendicular to the radiation incident direction.

  According to this invention, since the opening having a size exceeding the image detection area is provided in the casing on a surface perpendicular to the radiation incident direction, the casing shape can be prevented from being reflected in the radiation image. Therefore, it is possible to provide an electronic cassette having high reliability for image diagnostics and excellent convenience in use and storage.

Further, the casing is characterized in that the electronic cassette body is accommodated so as to come into contact with the accommodation surface of the electronic cassette body in a region other than the image detection region of the radiation detector using the solid state detection element surrounded by the electronic cassette body. To do.

  According to the present invention, since the electronic cassette body is in contact with the casing in an area other than the image detection area of the radiation detector, the electronic cassette is attached to or detached from the electronic cassette body or with the casing mounted. When transporting the cassette body, it is possible to prevent scratches on the surface in the image detection area of the radiation detector, and the contact portion between the electronic cassette body and the casing does not appear in the radiation image. It is possible to provide an electronic cassette that is highly reliable in terms of diagnostics and that is excellent in convenience and convenience of storage. In addition, it is preferable that the contact site | part of a casing and an electronic cassette main body consists of a material excellent in abrasion property. In particular, it is preferably not a material formed by curing fibers such as CFRP.

  Further, the casing is characterized in that the electronic cassette body is accommodated so as to be separated from the accommodation surface of the electronic cassette body.

  According to the present invention, since the casing can be accommodated so as to be separated from the radiation detection surface of the electronic cassette body, the electronic cassette body is transported when the casing is attached to or detached from the electronic cassette body or with the casing attached. At this time, it is possible to prevent the electronic cassette main body and the casing from coming into contact with each other and causing a scratch on the surface of the radiation detector, and the adverse effect on the image diagnosis due to the imprint of the scratch mark is eliminated. As a result, it is possible to provide an electronic cassette that is particularly reliable in terms of durability and that is excellent in convenience, convenience, and storage.

  Further, the casing is characterized in that the electronic cassette main body is accommodated by bringing the housing surface of the electronic cassette main body into contact with a protective member provided on the inner wall of the casing.

  According to this invention, since the electronic cassette body can be accommodated in the casing so that the housing surface of the electronic cassette body and the protective member are in contact with each other, when the casing is attached to or detached from the electronic cassette body, or the casing is attached When the electronic cassette main body is transported, it is possible to prevent the electronic cassette main body and the casing from rubbing and generating a scratch on the surface of the radiation detector. Disappears. As a result, it is possible to provide an electronic cassette that has higher durability and reliability for diagnostic imaging, and is excellent in convenience and convenience of storage.

  Furthermore, the electronic cassette according to the present invention is characterized in that a grip portion is integrally formed on the upper portion of the casing body.

  Since the gripping part is integral with the casing, it is excellent in portability, is easy to use, and has an effect that there is convenience in storage.

  Still further, the electronic cassette according to the present invention is characterized in that the first hole portion into which the movable claw engages and the second hole portion into which the projection portion enters are different in size.

  According to this invention, the electronic cassette is excellent in portability, and the electronic cassette body can be stably held on the casing body.

  In the electronic cassette according to the present invention, at least an upper part and a lower part of the electronic cassette body are separated from the housing surface of the electronic cassette body forming the opening of the casing body, and the electronic cassette body is accommodated in the casing body. It is characterized by that.

  According to the present invention, it is possible to avoid the reflection of the radiation image of the casing body and to ensure the reliability.

  Further, the electronic cassette according to the present invention is characterized in that when the movable claw is engaged with the first hole portion, the electronic cassette is locked by a lock mechanism.

  According to this invention, there exists an advantage which is excellent in portability and improves usability.

  Furthermore, in the electronic cassette according to the present invention, the lock mechanism includes a spring and a slider that is elastically biased by the spring, and the tip of the slider engages with the tapered surface of the movable claw to It is characterized by maintaining the locked state.

  According to the present invention, since the electronic cassette body and the casing body are integrated by the lock mechanism including the spring and the slider, there is an advantage that the portability is excellent and the usability is improved.

The present invention also relates to an electronic cassette body that surrounds a radiation detector using a solid-state detection element that detects radiation transmitted through a subject and converts it into radiation image information, and the electronic cassette body is housed in a protective cover. A radiation detector, a cassette control unit, a battery, and a transmitter / receiver. The protective cover has a plurality of positioning holes or recesses on the upper and lower surfaces of the protective cover.

  According to this invention, the electronic cassette body can be positioned by using a plurality of holes or recesses provided in the upper surface portion and the lower surface portion of the protective cover.

  Furthermore, the present invention is characterized in that, in the electronic cassette body, the plurality of holes or recesses provided in the upper surface portion of the protective cover are formed in the vicinity of the end portion of the upper surface portion and spaced apart from each other by a predetermined distance.

  According to the present invention, an effect can be obtained in which the electronic cassette body can be stably positioned by the plurality of spaced apart holes or recesses provided in the upper surface portion of the protective cover.

  Furthermore, the present invention is characterized in that, in the electronic cassette body, the plurality of holes or recesses provided in the lower surface portion of the protective cover are formed in the vicinity of the end portion of the lower surface portion so as to be spaced apart from each other by a predetermined distance.

  According to the present invention, the electronic cassette body can be easily mounted and positioned by the plurality of spaced apart holes or recesses provided in the lower surface portion of the protective cover.

  Furthermore, the present invention is characterized in that, in the electronic cassette body, a plurality of holes or recesses respectively provided in the upper surface portion and the lower surface portion of the protective cover are formed at corresponding positions in the vertical direction.

  According to the present invention, since the plurality of holes or recesses respectively provided in the upper surface portion and the lower surface portion of the protective cover are formed at the corresponding positions in the vertical direction, the electronic cassette is further improved using the holes or recesses. There is an advantage that positioning can be performed firmly.

According to the present invention, there is provided an electronic cassette body that surrounds a radiation detector using a solid-state detection element that detects radiation transmitted through a subject and converts it into radiation image information, and a casing into which the electronic cassette body is inserted. The casing has a casing body having an opening, a support part is provided at the upper part of the opening part, a movable claw that faces the opening part is provided at the support part, and a protrusion is provided at the lower part of the opening part. A plurality of first holes for engaging the movable claw are provided, a plurality of second holes are provided in the lower portion of the electronic cassette body, and the protrusions are separated by a predetermined interval. Since it is a protrusion and the electronic cassette body is configured to be provided with the second hole portion corresponding to the spacing between the plurality of protrusions, the stability of the storage when the electronic cassette body is stored in the casing body Secured , The effect is obtained and excellent portability. In addition, as a result of the storage stability being obtained, there is a specific effect that the reliability of image diagnostics is increased without blurring of the captured radiographic image.

It is a schematic perspective explanatory drawing of the operating room where the radiographic imaging system using the electronic cassette concerning this Embodiment was installed. It is a perspective view which shows the internal structure of an electronic cassette main body. It is a perspective view of the electronic cassette in a 1st embodiment. FIG. 4A is a front view of the electronic cassette according to the first embodiment. FIG. 4B is a cross-sectional view taken along line IVB-IVB in FIG. 4A. It is the IVB-IVB sectional view taken on the line of FIG. 4A in the modification of 1st Embodiment. It is a perspective view of the electronic cassette in 2nd Embodiment. It is a front view of the electronic cassette in 2nd Embodiment. FIG. 8A is a perspective view of an electronic cassette in the third exemplary embodiment. FIG. 8B is a partially omitted perspective view of the lid portion of the electronic cassette in the third exemplary embodiment. It is a perspective view of the electronic cassette in 4th Embodiment. It is a perspective view of the electronic cassette in the modification of 4th Embodiment. It is a perspective view of the electronic cassette in 5th Embodiment. It is a perspective view of the electronic cassette in the modification of 5th Embodiment. FIG. 13A is a perspective view of an electronic cassette in the sixth exemplary embodiment. 13B is a cross-sectional view taken along line XIIIB-XIIIB in FIG. 13A. It is a perspective view of the electronic cassette in 7th Embodiment. It is a schematic sectional drawing at the time of lid closing of the electronic cassette in a 7th embodiment. It is a perspective view of the electronic cassette in the modification of 7th Embodiment. It is a schematic sectional drawing at the time of lid closure of the electronic cassette in the modification of a 7th embodiment. It is sectional drawing of the electronic cassette in 8th Embodiment. It is sectional drawing of the electronic cassette in 9th Embodiment. It is a front view of the electronic cassette in 10th Embodiment.

DESCRIPTION OF EMBODIMENTS Hereinafter, an electronic cassette according to the present invention will be described in detail with reference to the accompanying drawings by giving preferred embodiments in relation to an electronic cassette body incorporated in the electronic cassette and a casing for housing the electronic cassette body .

  FIG. 1 is a schematic perspective explanatory view of an operating room 12 in which a radiographic imaging system 10 using an electronic cassette according to the present invention is installed. In the operating room 12, in addition to the radiographic imaging system 10, an operating table 16 on which a patient (subject) 14 lies is disposed, and an instrument table 20 on which various instruments used by a doctor 18 for surgery are placed. Located on the side of the operating table 16. In addition, around the operating table 16, various devices necessary for an operation, such as an anesthesia machine, an aspirator, an electrocardiograph, and a blood pressure monitor, are arranged.

  The radiographic imaging system 10 includes an imaging device 22 for irradiating a patient 14 with radiation X having a dose according to imaging conditions, and a radiation detector (see FIG. 2) for detecting the radiation X transmitted through the patient 14. An electronic cassette (radiation detection device) 24, a display device 26 that displays a radiation image based on the radiation X detected by the radiation detector, and a console (electronic cassette) that controls the imaging device 22, the electronic cassette 24, and the display device 26. 24 external control devices) 28. The electronic cassette 24 includes an electronic cassette body 30 containing a radiation detector, and a casing 32 that houses the electronic cassette body 30 and is detachable from the electronic cassette body 30. Between the console 28 and the imaging device 22, the electronic cassette 24, and the display device 26, signals are transmitted and received by wireless communication indicated by broken lines.

  The imaging device 22 is connected to the free arm 34 and can be moved to a desired position according to the imaging region of the patient 14 and can be retracted to a position that does not obstruct the operation by the doctor 18. Similarly, the display device 26 is connected to the free arm 36 and can be moved to a position where the doctor 18 can easily confirm the captured radiographic image.

  FIG. 2 is a perspective view showing an internal configuration of the electronic cassette body 30. The electronic cassette body 30 includes a protective cover 38 made of a material that transmits the radiation X. Inside the protective cover 38, a radiation detector 44 that detects the radiation X that has passed through the patient 14 and a lead plate 46 that absorbs the back scattered radiation of the radiation X are arranged in this order from the one surface 40 side of the protective cover 38. The The one surface 40 of the protective cover 38 may be configured as a grid.

  Further, inside the protective cover 38, a battery 48 that is a power source of the electronic cassette body 30 and supplies the voltage Vcc, a cassette control unit 50 that drives and controls the radiation detector 44 by the power supplied from the battery 48, and radiation A cassette transceiver 52 that receives and transmits a signal including information on the radiation X detected by the detector 44 to and from the console 28 is accommodated. The cassette control unit 50 and the cassette transmitter / receiver 52 are preferably provided with a lead plate or the like on the one surface 40 side of the protective cover 38 in order to avoid damage due to irradiation with the radiation X.

  By the way, when performing a surgical procedure as shown in FIG. 1, the advantage of using the electronic cassette body 30 (electronic cassette 24) to which the casing 32 is attached is great.

  First, since the electronic cassette body 30 is laid on the patient 14, the electronic cassette body 30 is easily subjected to a load directly. That is, in order to improve load resistance, it is desirable to install the casing 32.

  Secondly, in emergency procedures such as surgery, not only mere still image shooting, but also video shooting, indoor / outdoor transport of the electronic cassette body 30 (operating room 12 or imaging room, etc.), removal / storage from the shelf, etc. Work is assumed. In other words, the frequency of moving the position / posture of the electronic cassette body 30 is increased, and the possibility of falling to the floor or colliding with other objects is increased accordingly. That is, it is desirable to install the casing 32 in order to improve the collision strength.

  Thirdly, since a deposit such as blood of the patient 14 is generated along with the surgical technique, it is necessary to take measures against it. In particular, if blood or the like adheres to the surface of the protective cover 38 of the electronic cassette body 30, there is a problem in health and hygiene. That is, in order to prevent direct attachment to the electronic cassette body 30, it is desirable to install the casing 32. For example, the casing 32 may be removed and cleaned, and the casing 32 that is less expensive than the electronic cassette body 30 may be replaced as necessary. Thereby, since the damage of the electronic cassette main body 30 can be prevented, a lifetime can be lengthened.

  Next, the first embodiment of the electronic cassette basically configured as described above will be described in more detail with reference to FIGS.

  3 is a perspective view of the electronic cassette 24 in the first embodiment, FIG. 4A is a front view of the electronic cassette 24 in the first embodiment, and FIG. 4B is a cross-sectional view taken along line IVB-IVB in FIG. 4A.

  As shown in FIG. 3, the electronic cassette 24 includes an electronic cassette body 30 and a casing 32. The casing 32 has a rectangular main body 54, and the main body 54 has an opening 56 that opens greatly on one side surface. A support portion 57 is provided above the opening 56, and a movable claw 60 and a slider 62 that displaces the movable claw 60 are provided on the support portion 57. A handle (gripping part) 64 is provided on the upper part of the main body 54. The electronic cassette body 30 that fits into the opening 56 has two protrusions 58 formed on the bottom surface of the body 54 that forms the opening 56. The electronic cassette body 30 includes two holes 66 on the lower surface portion and two holes 68 on the upper surface portion.

  Here, the main body 54 can be made of a light metal material such as magnesium, a magnesium alloy, aluminum, or an aluminum alloy in order to reduce the weight of the entire electronic cassette 24.

  As shown in FIG. 4A, two conical protrusions 58 are provided on the lower inner wall of the casing 32, and fit into holes 66 formed on the bottom surface of the electronic cassette body 30, respectively. Here, it goes without saying that the means for fitting the electronic cassette body 30 and the casing 32 is not limited to the protrusions 58 and the holes 66, but may be grooves that are concave portions instead of the holes 66, for example.

  As shown in FIG. 4A, two movable claws 60 are provided in the support portion 57 corresponding to the holes 68, 68 in the upper part of the electronic cassette body 30, and are moved downward in FIG. 4A by the coil spring 67. It is directed and bullets are energized. A tapered surface is formed on one side surface of the movable claw 60. The slider 62 is provided in the vicinity of the movable claw 60, and its tip end faces the tapered surface of the movable claw 60. That is, when the tip of the slider 62 is pressed toward the taper surface of the movable claw 60, the movable claw 60 can move upward against the elastic force of the coil spring 67 in the figure.

  The handle 64 is formed integrally with the main body 54 and has a strength that allows the electronic cassette main body 30 and the casing 32 to be gripped.

  As shown in FIG. 4B, in the electronic cassette body 30, the radiation X incident surface side (the one surface 40 side of the protective cover 38) faces the back surface 72 of the casing 32, and the one surface 40 and the back surface 72 of the casing 32 It is held at a predetermined interval so as not to contact.

  Since the electronic cassette main body 30 is held with the one surface 40 of the protective cover 38 facing away, the electronic cassette main body 30 is fitted with the holes 68 of the electronic cassette main body 30 in the two protrusions 58. The cassette body 30 is brought close to the back surface 72 of the casing 32, the slider 62 is pressed against the taper surface of the movable claw 60, moved laterally, lifted against the spring force of the coil spring 67, and then the slider 62 is released. For example, the movable claw 60 and the hole 68 can be engaged with each other at two locations, and the casing 32 can be mounted so as to be locked to the electronic cassette body 30. That is, as a whole, the electronic cassette body 30 can be inserted from the opening 56 of the casing 32 while being moved substantially parallel to the incident direction of the radiation X. On the other hand, the electronic cassette main body 30 can be removed from the casing 32 by moving the electronic cassette main body 30 in a state where the electronic cassette main body 30 is accommodated in the casing 32 to lift the movable claw 60 and releasing the movable claw 60 from the hole 68.

  Further, when the electronic cassette 24 is used in the operating room 12 shown in FIG. 1, the casing 32 is laid so as to open to the operating table 16 (downward) side even if it does not have a sealing property. Inflow of blood or the like into the casing 32 can be prevented. Furthermore, since the casing 32 has the handle 64, the electronic cassette 24 can be easily transported and workability is improved.

  Hereinafter, a surface (one surface 40 of the protective cover 38 in FIG. 4B) where the electronic cassette body 30 faces the back surface 72 in a state where the electronic cassette body 30 is housed in the casing 32 is referred to as a housing surface. When the incident surface side of the radiation X is the back surface 72 side, the one surface 40 is the accommodating surface, and when the incident surface side of the radiation X is the opening 56 side, the other surface 70 opposite to the one surface 40 is the accommodating surface. It is. In the first embodiment, any configuration in which the housing surface of the electronic cassette body 30 is the one surface 40 or the other surface 70 can be employed.

  FIG. 5 is a cross-sectional view taken along the line IVB-IVB in FIG. 4A in a modification of the first embodiment.

  As shown in FIG. 5, in this modification, a protective member 73 is fixed inside the back surface 72 of the casing 32. The protective member 73 is made of an elastic body such as sponge or rubber. The electronic cassette body 30 is held such that the incident surface side of the radiation X (the one surface 40 side of the protective cover 38) faces the back surface 72, and the one surface 40 and the protective member 73 of the casing 32 are in contact with each other.

  Since it is configured as described above, the electronic cassette main body 30 is casing in a direction in which the incident surface side of the radiation X (the irradiation surface 40 side of the protective cover 38) faces the rear surface 72, that is, parallel to the incident direction of the radiation X. The electronic cassette main body 30 can be protected.

  Here, any configuration in which the housing surface of the electronic cassette body 30 is the one surface 40 or the other surface 70 of the protective cover 38 can be employed. In order to protect the one surface 40 side of the protective cover 38, it is particularly preferable that the electronic cassette body 30 is configured such that the housing surface of the electronic cassette body 30 is on the one surface 40 side.

  Next, a second embodiment of the electronic cassette according to the present invention will be described with reference to FIGS. In the following embodiments, the same components as those in the first embodiment are denoted by the same reference numerals, detailed description thereof is omitted, and the same applies hereinafter.

  FIG. 6 is a perspective view of the electronic cassette 24 in the second embodiment, and FIG. 7 is a front view of the electronic cassette 24 in the second embodiment.

  As shown in FIG. 6, in the second embodiment, eight buffer members 74 are provided on the back inner wall of the main body 54. The buffer member 74 can be made of a material excellent in scratching. In particular, a material other than a material formed by curing a fiber such as CFRP may be used.

  As shown in FIG. 7, the buffer member 74 is only in a region other than the region (image detection region) where the radiation detector 44 is disposed, on the one surface 40 of the protective cover 38 of the electronic cassette body 30 to which the radiation X is irradiated. It is configured to come into contact with the back surface 72 of the casing 32.

  Since it is configured as described above, the electronic cassette body 30 is placed in the direction in which the incident surface side of the radiation X (the one surface 40 side of the protective cover 38) faces the back surface 72 of the casing 32, that is, in the incident direction of the radiation X. The electronic cassette main body 30 can be protected by attaching and detaching it to the 32 without impact.

  Next, a third embodiment of the electronic cassette according to the present invention will be described with reference to FIG.

  FIG. 8A is a perspective view of the electronic cassette 24 in the third embodiment, and FIG. 8B is a partially omitted perspective view of the lid portion of the electronic cassette 24 in the third embodiment.

  As shown in FIG. 8A, the electronic cassette body 30 includes a protective cover 38 and convex portions 80 that extend outwardly from both sides along the longitudinal direction of the protective cover 38. The casing 32 has a main body 54 and is provided with handles 64 on both side portions on the long side. Concave portions 82, 82 extend on the inner wall portions of the handles 64, 64 of the main body 54. An opening 56 provided on the short side of the main body 54 can be opened and closed by a lid 84. The lid portion 84 can be rotated by a hinge 86, and a slider 90 is provided on the opposite side. The slider 90 is slidable through the elongated hole 88 of the lid portion 84 and has a claw 94 at the tip thereof, and the claw 94 can be fitted into a recess 96 provided in the vicinity of the recess 82.

  Therefore, if the convex portions 80 and 80 of the electronic cassette body 30 are engaged with the concave portions 82 and 82 of the main body 54 while holding the electronic cassette main body 30 with the one surface 40 of the protective cover 38 facing upward, the electronic cassette main body 30 can be engaged. The convex portions 80, 80 are accommodated in the casing 32. That is, it can be inserted from the opening 56 of the casing 32 by moving in the direction perpendicular to the incident direction of the radiation X. Further, the electronic cassette body 30 is completely accommodated in the casing 32 by closing the lid portion 84 via the hinge 86 and pushing the slider 90 to insert the claw 94 into the recess 96.

  Next, a fourth embodiment of the electronic cassette according to the present invention will be described with reference to FIG.

  As shown in FIG. 9, the electronic cassette body 30 has a protective cover 38, and the protective cover 38 includes guide portions 100 at both long ends thereof. The casing 32 includes a main body 54, a handle 64, a lid portion 84 that opens and closes the opening portion 56 of the main body 54, and a lid fitting portion 102 provided on one end side of the opening portion 56. A fixing member 104 is provided on the back surface of the lid portion 84, and fitting claws 106 and 106 are projected from one end portion thereof, and fitting claws 108 and 108 are provided at the other end portion. On the other hand, fitting holes 110 and 110 for receiving the fitting claws 106 and 106 are provided in the vicinity of one end of the opening 56 of the main body 54, and fitting claws 108 and 108 are provided in the vicinity of the other end. Receiving fitting holes 112, 112 are provided.

  The guide portions 100, 100 are bulged and formed higher in the height direction than the electronic cassette body 30, and are integrated with the protective cover 38 so as to extend in the longitudinal direction at the side portion of the electronic cassette body 30. The guide parts 100, 100 are provided outside the region where the radiation detector 44 is disposed.

  The lid portion 84 can open and close the opening 56 by being attached to and detached from the lid fitting portion 102 of the casing 32. For the fixing member 104, an impact absorbing material such as sponge or rubber can be used.

  Since the electronic cassette main body 30 is slid in the direction of the arrow 56 (or the opposite direction) from the opening 56 while holding the electronic cassette main body 30 with the one surface 40 of the protective cover 38 facing upward, the electronic cassette main body is configured as described above. 30 is attached to the casing 32, and conversely, the electronic cassette body 30 attached to the casing 32 can be removed. That is, it can be detached from the opening 56 of the casing 32 by moving in the direction perpendicular to the incident direction of the radiation X. Here, the opening 56 is formed to have a size that can accommodate the H-shaped electronic cassette main body 30 having the guide portion 100 without any gap, so that one surface 40 of the protective cover 38 and the bottom inner wall of the main body 54 do not come into contact with each other. Can slide. Further, after the fitting claw 106 of the lid 84 is inserted into the fitting hole 110, the opening 56 is closed by the lid 84 by fitting the fitting claw 108 of the lid 84 into the fitting hole 112. Can do.

  FIG. 10 is a perspective view of an electronic cassette 24 according to a modification of the fourth embodiment.

  As shown in FIG. 10, the electronic cassette body 30 includes a protective cover 38, and the protective cover 38 includes guide portions 100 at both long ends thereof. The casing 32 includes a main body 54, a handle 64, a lid portion 84 that opens and closes the opening portion 56 of the main body 54, and a lid fitting portion 102 provided on one end side of the opening portion 56.

  The guide portions 100, 100 are bulged and formed higher in the height direction than the electronic cassette body 30, and are integrated with the protective cover 38 so as to extend in the longitudinal direction at the side portion of the electronic cassette body 30. The guide parts 100, 100 are provided outside the region where the radiation detector 44 is disposed. Concave portions 114, 114 extend in the longitudinal direction substantially at the center of the upper surfaces of the guide portions 100, 100. Concave portions 115, 115 extend in the longitudinal direction substantially at the center of the lower surfaces of the guide portions 100, 100.

  On the other hand, convex portions 116, 116 are provided in the vicinity of both side surfaces of the upper surface inner wall portion of the main body 54 of the casing 32 so as to extend in the longitudinal direction, and the convex portions 117, 116 are disposed near both side surfaces of the lower surface inner wall portion of the main body 54. 117 is provided so as to extend in the longitudinal direction.

  Therefore, the convex portions 116 and 116 and the convex portions 117 and 117 of the main body 54 of the casing 32 are guided to the guide portions 100 and 100 of the electronic cassette body 30 while holding the electronic cassette body 30 with the one surface 40 of the protective cover 38 facing upward. The electronic cassette body 30 can be easily accommodated in the casing 32 and can be removed by engaging with the recesses 114 and 114 and the recesses 115 and 115. That is, it can be detached from the opening 56 of the casing 32 by moving in the direction perpendicular to the incident direction of the radiation X.

  Next, a fifth embodiment of the electronic cassette according to the present invention will be described with reference to FIG.

  As shown in FIG. 11, the electronic cassette body 30 includes a protective cover 38 and handles 64 and 64 provided on both sides of the protective cover 38. The handles 64, 64 have an arcuate shape, and are provided so as to be symmetrical on both side surfaces of the main body 54. Between the protective cover 38 and the handles 64, 64, recesses 120, 120 are formed on the upper surface and recesses 122, 122 are formed on the lower surface so as to be parallel to each other. The casing 32 has a main body 54, and an opening 56 is formed on one short side surface thereof, and slits 124 and 124 are formed on a pair of long side surfaces. Upper guide portions 126 and 126 and lower guide portions 128 and 128 are provided on the long side surface by the slits 124 and 124.

  As described above, the grips 64 and 64 are held by both hands, and while holding the electronic cassette body 30 with the one surface 40 of the protective cover 38 facing downward, the recess 120 is formed in the upper guide 126 and the lower guide. The casing 32 can be attached to the electronic cassette body 30 and can be removed by sliding it from the opening 56 in the direction of the arrow (in the opposite direction) with the recess 122 fitted in the portion 128. That is, it can be detached from the opening 56 of the casing 32 by moving in the direction perpendicular to the incident direction of the radiation X.

  FIG. 12 is a perspective view of an electronic cassette 24 according to a modification of the fifth embodiment.

  The electronic cassette body 30 includes a protective cover 38. The casing 32 has a main body 54, an opening 56 is formed in the main body 54, and slits 124 and 124 are formed on the long side surfaces thereof. Due to the formation of the slits 124, 124, an upper guide 126 is formed on the side wall where these slits 124 are formed. In the figure, reference numeral 132 denotes a fixed claw.

  The slits 124 and 124 extend to the fixed claw 132 and form an upper guide portion 126. The fixed claw 132 extends in the short direction (vertical direction of the longitudinal direction) in the vicinity of the opening 56.

  Since the handle 64 is held with both hands, the concave portion 120 and the upper guide portion 126 are fitted into the electronic cassette main body 30 while holding the electronic cassette body 30 with the one surface 40 of the protective cover 38 facing downward. By sliding the main body 30 in the direction of the arrow from the opening 56 and pressing it against the tail end portion 130 of the casing 32, the electronic cassette main body 30 is pushed down, and the electronic cassette main body 30 is fitted with the fixing claws 132. The electronic cassette body 30 can be attached to the casing 32. In addition, the electronic cassette body 30 and the fixing claw 132 are separated from each other, and the electronic cassette body 30 is pushed upward while being pressed against the tail end portion 130, and the recess 120 is fitted into the upper guide portion 126. The electronic cassette body 30 can be removed from the casing 32 by sliding it from the opening 56 in the direction opposite to the arrow direction. That is, it can be detached from the opening 56 of the casing 32 by moving in the direction perpendicular to the incident direction of the radiation X.

  In this embodiment, since the electronic cassette body 30 is configured to contact the bottom surface of the casing 32, the space between the one surface 40 of the protective cover 38 and the casing 32 can be eliminated, and at the same time, the one surface 40 of the protective cover 38 and the patient 14. And the distance can be minimized. Thereby, deterioration of the radiation image information accompanying the radiation scattering (degradation of the image quality of the radiation image) can be reduced.

  Next, a sixth embodiment of the electronic cassette according to the present invention will be described with reference to FIG. FIG. 13A is a perspective view of an electronic cassette 24 in the sixth embodiment, and FIG. 13B is a cross-sectional view taken along line XIIIB-XIIIB in FIG. 13A.

  As shown in FIG. 13A, the electronic cassette body 30 includes a protective cover 38, cylindrical protrusions 134 and 134 protruding outward from both side surfaces in the longitudinal direction of the protective cover 38, a protrusion 136, 136. The casing 32 has a main body 54, and an opening 56 is formed on one short side surface thereof, and slits 124 and 124 are formed on a pair of long side surfaces. The slits 124, 124 have upper guide portions 126, 126, lower guide portions 128, 128 on the long side surfaces, and inflection portions 140, 140 between the tail ends. Slits 142 and 144 are provided which rise upward from the portions 138 and 140 and extend horizontally in the drawing.

  As shown in FIG. 13B, a protective member 73 is provided on the inner upper surface of the casing 32. The protection member 73 is made of an elastic body such as sponge or rubber, and is fixed to substantially the entire surface of the upper inner wall of the main body 54 of the casing 32. In the electronic cassette body 30, the radiation X incident surface side (the one surface 40 side of the protective cover 38) faces the upper surface of the main body 54 of the casing 32, and the one surface 40 of the protective cover 38 contacts the protective member 73 of the casing 32. In addition, the inner wall of the lower surface of the main body 54 and the other surface 70 of the one surface 40 are held so as to be separated by providing a space 146.

  Since it is configured as described above, while holding the electronic cassette body 30 with the one surface 40 of the protective cover 38 facing upward, it is slid from the opening 56 in the direction of the arrow (or the opposite direction), and the protrusion on the back side The electronic cassette main body 30 is pushed upward obliquely in a state in which 134 is pressed against the inflection portion 140 of the casing 32, and the protrusion 134 (136) of the electronic cassette main body 30 is pressed to the innermost portion of the slit 142 (144). The one surface 40 side of the protective cover 38 of the electronic cassette body 30 is brought into close contact with the protective member 73, so that the electronic cassette body 30 can be attached to and held in the casing 32. Further, the electronic cassette body 30 and the protective member 73 that are in close contact with each other are separated, the electronic cassette body 30 is pushed downward obliquely, the protrusion 134 (136) is moved to the inflection portion 138 (140), and an arrow is drawn from the opening 56. The electronic cassette body 30 can be removed from the casing 32 by sliding in the opposite direction. That is, it can be detached from the opening 56 of the casing 32 by moving in the direction perpendicular to the incident direction of the radiation X.

  In this embodiment, since the electronic cassette body 30 is configured to contact the upper surface of the casing 32, the space between the one surface 40 of the protective cover 38 and the casing 32 can be eliminated, and at the same time, the one surface 40 of the protective cover 38 and the patient 14. And the distance can be minimized. Thereby, deterioration of the radiation image information accompanying the radiation scattering (degradation of the image quality of the radiation image) can be reduced.

  Next, a seventh embodiment of the electronic cassette according to the present invention will be described with reference to FIGS.

  As shown in FIG. 14, this embodiment basically has the same configuration as that of the first embodiment (FIG. 3), but a lid portion 150 that covers the opening 56 is provided in the casing 32. Is different.

  The rectangular lid 150 is opened facing the casing 32. The lid 150 is rotatably connected to one long side of the casing 32 via two hinges 152, 152. Two columnar protrusions 154 and 154 are fixed on the other long side of the lid 150.

  Two hook-shaped lock members 156 and 156 are provided on the opening 56 side of the upper surface side outer wall of the main body 54. The lock members 156 and 156 are rotatable in the direction of the arrow about the fixed shaft. The lock members 156 and 156 are in a positional relationship with the projections 154 and 154 when the lid 150 is rotated and brought into close contact with the casing 32. In this state, the lock members 156 and 156 are respectively associated with the projections 154 and 154. It can be freely combined.

  Since it is configured as described above, the lid 150 is rotated so as to approach the casing 32, and the lock members 156, 156 are rotated in the directions of the arrows while the lid 150 is in close contact with the casing 32. By engaging the protrusions 154 and 154, the lid can be closed so as to be locked (see FIG. 15). On the other hand, the lock members 156 and 156 are rotated in directions opposite to the arrow directions, separated from the engaged projections 154 and 154, and the lid 150 is rotated so as to be separated from the casing 32. It can be released and opened.

  That is, by covering the casing 32 with the lid 150, it is possible to prevent the electronic cassette body 30 housed in the casing 32 from being exposed, thereby protecting the electronic cassette body 30. Further, the lid 150 can be easily opened and closed by rotating the lid 150 via the hinges 152 and 152.

  Moreover, it is possible to prevent the inflow of foreign matter from the outside by closing the lid while the casing 32 is mounted. For example, adhesion of blood or the like to the electronic cassette body 30 can be prevented when performing a surgical technique or the like. Thereafter, even when a cleaning liquid is used to clean blood or the like attached to the casing 32, the cleaning liquid can be prevented from adhering to the electronic cassette body 30.

  Moreover, it is preferable that the casing 32 at the time of closing has airtightness by attaching a packing material made of an elastic body containing rubber. Thereby, when the upper and lower sides of the casing 32 are arranged at the same position and posture as at the time of photographing, it is possible to prevent blood, cleaning liquid, and the like from flowing into the casing 32.

  Next, a modification of the seventh embodiment of the electronic cassette according to the present invention will be described with reference to FIGS.

  As shown in FIG. 16, the casing 32 and the lid portion 160 are provided separately from the seventh embodiment (FIGS. 14 and 15). For convenience of explanation, the configuration of the electronic cassette body 30 is omitted.

  Three fitting claws 162, 162, 162 extending in the short direction are integrally formed on the upper side surface of the rectangular flat lid 160. Three fitting claws 164, 164, 164 extending in the normal direction are integrally formed in the lower portion of the lid portion 160.

  On the other hand, a protrusion 166 that protrudes in the direction of the opening 56 is provided on the upper surface of the casing 32 so as to extend in the longitudinal direction of the casing 32. Three fitting holes 168, 168, 168 that receive the three fitting claws 162, 162, 162 are provided on the inner wall of the protruding portion 166. Three fitting holes 170, 170, 170 for receiving three fitting claws 164, 164, 164 are provided on the lower surface of the casing 32.

  Since it is configured as described above, the gripping claws 162, 162, 162 of the lid 160 are fitted into the fitting holes 168, 168, 168 of the casing 32 while holding the lid 160, By fitting the fitting claws 164, 164, 164 of the lid portion 160 into the fitting holes 170, 170, 170 of the casing 32, the lid portion 160 can be attached and closed (see FIG. 17). . On the other hand, by separating the fitting claws 164, 164, 164 and the fitting holes 170, 170, 170, and further separating the fitting claws 162, 162, 162 and the fitting holes 168, 168, 168, The lid 160 can be removed and opened.

  That is, by covering the casing 32 using the lid portion 160, it is possible to prevent the electronic cassette body 30 accommodated in the casing 32 from being exposed, thereby protecting the electronic cassette body 30. Moreover, according to the usage mode of the electronic cassette 24, the cover part 160 can be freely attached or detached, and convenience is improved.

  Next, an eighth embodiment of an electronic cassette according to the present invention will be described with reference to FIG.

  As shown in FIG. 18, this embodiment basically has the same configuration as that of the modification of the first embodiment (FIG. 5), but a radiation shielding member (radiation protection part) is provided on the inner wall of the casing 32. The difference is that 200 is fixed. The radiation shielding member 200 is made of, for example, a metal such as lead, tungsten, or a stainless alloy, or a thermoplastic resin containing at least one of these metals.

  Since it is configured as described above, the electronic cassette main body 30 is casing in a direction in which the incident surface side of the radiation X (the irradiation surface 40 side of the protective cover 38) faces the rear surface 72, that is, parallel to the incident direction of the radiation X. 32 can be attached and detached. The radiation X irradiated while the casing 32 accommodates the electronic cassette body 30 is scattered inside the electronic cassette body 30 and the casing 32 and is absorbed by the radiation shielding member 200 provided in the casing 32. As a result, it becomes possible to prevent radiation X from being applied to the electronic components and circuit boards (for example, the radiation detector 44, the cassette control unit 50, and the cassette transceiver 52 shown in FIG. 2) included in the electronic cassette body 30, and the electronic components, etc. Malfunction, performance degradation, and damage can be prevented. Further, it is possible to reduce deterioration of the radiation image information (deterioration of the image quality of the radiation image) due to radiation scattering.

  Next, a ninth embodiment of the electronic cassette according to the present invention will be described with reference to FIG.

  As shown in FIG. 19, this embodiment basically has the same configuration as that of the sixth embodiment (FIG. 13B), but an EMC countermeasure member (EMC countermeasure section) 201 is fixed to the inner wall of the casing 32. Is different. The EMC countermeasure member 201 is provided by, for example, attaching an aluminum foil, conducting conductive coating, or performing electroless nickel plating on the entire surface of the casing 32.

  Since it is configured as described above, the electronic cassette body 30 can be mounted and held on the casing 32 by bringing the one surface 40 side of the protective cover 38 of the electronic cassette body 30 into close contact with the protective member 73. When the electronic cassette body 30 is operated in a state where the casing 32 accommodates the electronic cassette body 30, the EMC countermeasure member 201 provided in the casing 32 causes the circuit board provided in the electronic cassette body 30 and the circuit board to be mounted on the circuit board. EMC countermeasures including noise reduction countermeasures for the electronic components (for example, the radiation detector 44, the cassette control unit 50, the cassette transceiver 52, etc. shown in FIG. 2) can be performed. That is, it is possible to avoid malfunction of the radiation detector 44 and the like and external electronic equipment due to noise generated from the circuit board and electronic components, and to avoid malfunction of the electronic components due to noise entering the casing 32 from the outside. Is possible.

  As a result, it is possible to design to increase the clock frequency used for controlling the electronic cassette body 30, shorten the cycle time of radiation imaging, and increase the number of times that continuous imaging can be performed.

  Even when the main body 54 of the casing 32 is configured to provide a conductive layer on the CFRP, the above-described effects can be obtained.

  Next, a tenth embodiment of the electronic cassette according to the present invention will be described with reference to FIG.

  As shown in FIG. 20, this embodiment basically has the same configuration as that of the first embodiment (FIG. 4A), but a heat conducting member (heat dissipating part) is formed on the bottom inner wall of the main body 54 of the casing 32. ) 202 is fixed. For example, a magnesium alloy, an aluminum alloy, an aluminum alloy containing carbon nanotubes, or a heat conductive resin can be used as the heat conductive member 202. Here, the heat conductive resin is a thermoplastic resin filled with high heat conductivity inorganic powder such as zinc oxide, aluminum nitride, boron nitride or the like, or metal powder such as aluminum, silver or copper as a heat conductive filler.

  Since the electronic cassette main body 30 is held with the one surface 40 of the protective cover 38 facing away, the electronic cassette main body 30 is fitted with the holes 68 of the electronic cassette main body 30 in the two protrusions 58. The cassette body 30 is brought close to the back surface 72 of the casing 32, the slider 62 is pressed against the taper surface of the movable claw 60, moved laterally, lifted against the spring force of the coil spring 67, and then the slider 62 is released. For example, the movable claw 60 and the hole 68 are engaged at two locations, and the casing 32 is moved to the electronic cassette with the side surface (the surface having the hole 68) of the electronic cassette body 30 in close contact with the heat conducting member 202 of the casing 32. The main body 30 can be mounted so as to be locked.

  When the electronic cassette body 30 is operated in a state where the casing 32 accommodates the electronic cassette body 30, the heat generated from the electronic cassette body 30 passes through the heat conducting member 202 and the main body 54 provided in the casing 32, and the casing 32 is discharged to the outside. As a result, it is possible to design to increase the clock frequency used for controlling the electronic cassette body 30, shorten the cycle time of radiation imaging, and increase the number of times that continuous imaging can be performed.

  It should be noted that the heat conducting member 202 is not limited to the configuration in which the main body 54 of the casing 32 is provided, and the members (for example, the protrusions 58 and the movable claws 60) that can contact the protective cover 38 of the electronic cassette main body 30 are made of a material having high heat conductivity. Even when it is configured using the above, the above-described effects can be obtained.

  Regarding the configuration of the eighth to tenth embodiments, for example, the EMC countermeasure member 201 and the heat conduction member 202 may be provided in combination with the eighth embodiment (FIG. 18), and other embodiments (first to first embodiments). It is needless to say that the radiation shielding member 200, the EMC countermeasure member 201, or the heat conducting member 202 can be included in the configuration in the seventh embodiment).

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

  For example, the casing 32 according to each embodiment of the present invention is provided so as to surround the entire electronic cassette body 30, but surrounds only a part of the electronic cassette body 30, specifically, the radiation detector 44. It may be provided as follows. This is because it is sufficient to protect the radiation detector 44 that is a part for detecting a radiation image.

  In this case, as shown in FIG. 2, the radiation detector 44 and the control unit (battery 48, cassette controller 50, and cassette transceiver 52) may be fixed. Alternatively, the control unit may be rotatably connected to the radiation detector 44 via a hinge part. Then, the control unit can be moved to an appropriate position according to the imaging mode of the patient 14 with the casing 32 attached to the radiation detector 44. For example, the control unit can be retracted to a position / angle that does not interfere with radiography.

24 ... Electronic cassette 30 ... Electronic cassette body 32 ... Casing 38 ... Protective cover 40 ... One side 54 ... Main body 56 ... Opening 58 ... Projection 60 ... Moving claw 62 ... Slider 64 ... Handle 66, 68 ... Hole 70 ... Other side 72 ... Back surface 73 ... Protective member 74 ... Buffer members 80, 116, 117 ... Convex parts 82, 96, 114, 115, 120, 122 ... Concave parts 84, 150, 160 ... Cover parts 86, 152 ... Hinge 100 ... Guide part 102 ... Lid fitting part 104 ... fixing member 106, 108, 162, 164 ... fitting claw 110,112,168,170 ... fitting hole 124 ... slit 126 ... upper guide part 128 ... lower guide part 132 ... fixing claw 154 ... projection 156 ... Lock member 200 ... Radiation shielding member 201 ... EMC countermeasure member 202 ... Heat conduction member

Claims (23)

An electronic cassette body in which a radiation detector using a solid-state detection element that detects radiation that has passed through the subject and converts it into radiation image information;
A casing for housing the electronic cassette body,
The casing has a casing body having an opening, and the opening is opened so that a radiation incident surface of the electronic cassette body faces the incident direction of the radiation, and the opening A movable claw displaceable with respect to the opening is provided at the top of the opening and a protrusion is provided at the bottom of the opening
A first hole for engaging the tip of the movable claw is provided at the top of the electronic cassette body, and a second hole for fitting the projection is provided at the bottom of the electronic cassette body. Characteristic electronic cassette. The electronic cassette according to claim 1,
A plurality of the movable claws are provided at an upper portion of the opening with a predetermined spacing, and a plurality of the first holes are provided at an upper portion of the electronic cassette body corresponding to the positions of the movable claws. On the other hand, a plurality of the projections are provided at a lower portion of the opening with a predetermined spacing and a plurality of the second projections spaced at a predetermined spacing at the lower portion of the electronic cassette body corresponding to the positions of the projections. An electronic cassette comprising a hole. The electronic cassette according to claim 1 or 2,
An electronic cassette comprising: a slider for moving the movable claw forward and backward in the first hole of the electronic cassette body in the casing body. The electronic cassette according to claim 3,
The electronic cassette according to claim 1, wherein the movable claw is biased by a spring that imparts a resilient force toward the first hole. In the electronic cassette according to any one of claims 1 to 4 ,
The electronic cassette main body is held by the casing main body so that the radiation incident surface faces the back side of the opening of the casing. In the electronic cassette according to any one of claims 1 to 5 ,
One side surface of the casing is opened to face the radiation incident surface with a size exceeding the image detection area of the radiation detector. In the electronic cassette according to any one of claims 1 to 6 ,
The said casing has a buffer member which contacts the said electronic cassette main body in area | regions other than the image detection area of the said radiation detector arrange | positioned at the said electronic cassette main body. The electronic cassette characterized by the above-mentioned. In the electronic cassette according to any one of claims 1 to 7 ,
When the electronic cassette main body is stored in the casing, the movable claw engages with the first hole portion and the protrusion engages with the second hole portion, so that the radiation incident on the electronic cassette main body is achieved. An electronic cassette, wherein a predetermined space is formed between the surface and the housing surface of the casing body. In the electronic cassette according to any one of claims 1 to 8 ,
An electronic cassette, wherein a grip portion is integrally formed on an upper portion of the casing body. The electronic cassette according to any one of claims 1 to 9 ,
An electronic cassette characterized in that at least an upper portion and a lower portion of the electronic cassette main body are separated from an upper surface and a lower surface forming the opening of the casing main body, and the electronic cassette main body is accommodated in the casing main body. In the electronic cassette according to any one of claims 1 to 10 ,
The electronic cassette is characterized in that the movable claw is locked by a lock mechanism when engaged with the first hole. The electronic cassette according to claim 11 ,
The lock mechanism includes a spring and a slider that is elastically urged by the spring, and the tip of the slider is engaged with the tapered surface of the tip of the movable claw to maintain the movable claw in a locked state. An electronic cassette characterized by An electronic cassette body for storing a radiation detector using a solid-state detection element that detects radiation transmitted through a subject and converts it into radiation image information,
The electronic cassette body includes the radiation detector housed in a protective cover, a cassette control unit, a battery, and a transmitter / receiver, wherein the radiation incident surface of the electronic cassette body faces the incident direction of radiation. When the electronic cassette body is inserted into the opening, the upper surface and the lower surface of the protective cover have positioning holes or recesses for positioning the electronic cassette body inside the casing. The cassette body. The electronic cassette body according to claim 13 ,
An electronic cassette body comprising a plurality of holes or recesses provided in an upper surface portion of the protective cover, spaced apart from each other by a predetermined distance. The electronic cassette body according to claim 13 or 14 ,
An electronic cassette main body, wherein a plurality of holes or recesses provided in the lower surface portion of the protective cover are formed in the lower surface portion with a predetermined spacing. The electronic cassette body according to any one of claims 13 to 15 ,
An electronic cassette main body characterized in that a hole or a recess provided in each of an upper surface portion and a lower surface portion of the protective cover is formed at a corresponding position in the vertical direction. A casing that houses an electronic cassette body in which a solid-state detection element that detects radiation transmitted through a subject and converts it into radiation image information is disposed,
The casing has at least a casing main body and a grip part, and an opening for storing the electronic cassette main body is provided on a surface opposite to the radiation incident surface of the casing main body,
A casing in which a movable claw that is displaced relative to the opening is provided above the opening, and a projection is provided below the opening. The casing of claim 17 ,
A plurality of the movable claws are provided corresponding to a plurality of first holes provided in an upper portion of the electronic cassette main body that is accommodated at a predetermined interval, and the protrusions are separated from the electronic cassette main body by a predetermined interval. A casing provided with a plurality corresponding to a plurality of second holes provided in the lower part. The casing according to claim 17 or 18 ,
The casing is provided with a slider for advancing and retracting the movable claw to the first hole of the electronic cassette body. The casing of claim 19 ,
The casing is characterized in that the movable claw is urged by a spring that gives a resilient force. The casing according to any one of claims 17 to 20 ,
One side surface of the casing has a size that exceeds an image detection area of a radiation detector housed in the casing body, and is open facing the radiation incident surface. The casing according to any one of claims 17 to 21 ,
The said casing has a buffer member which contacts the said electronic cassette main body in area | regions other than the image detection area of the radiation detector arrange | positioned at the said electronic cassette main body. The casing according to any one of claims 17 to 22 ,
When the electronic cassette main body is stored in the casing, the movable claw engages with the first hole of the electronic cassette main body, and the protrusion engages with the second hole of the electronic cassette main body. A predetermined space is formed between the radiation incident surface of the electronic cassette body and the housing surface of the casing body.

Images