JP5542711B2 - Containment device - Google Patents

Description

  The present invention relates to a storage device, and more particularly to a storage device that stores a radiographic imaging device.

  For example, when radiation such as X-rays or γ-rays is irradiated, a part of the energy of the radiation is accumulated, and when excitation light such as visible light is irradiated after that, depending on the intensity of the accumulated energy. An accumulative phosphor (stimulable phosphor) that exhibits stimulated luminescence is known.

  Conventionally, using this stimulable phosphor, information on a radiographic image of a subject such as a human body is once recorded on a stimulable phosphor sheet having a sheet-like stimulable phosphor layer, and the information is stored on the stimulable phosphor sheet. Radiation image information recording that outputs an image signal obtained by photoelectrically reading stimulated emission light obtained by irradiating excitation light such as laser light to a recording medium such as a photographic material or a display device such as a CRT as a visible image A playback system is used.

  By the way, when taking a radiographic image, the stimulable phosphor sheet is used as a cassette (hereinafter also referred to as “IP cassette”) in a state of being housed in a housing. The IP cassette is held interchangeably so that it can be continuously performed, and the distance between the held IP cassette and the collimator that limits the irradiation range of the radiation emitted from the radiation source or the radiation source is set. It is used in a state where it is held in a cassette holder provided with a distance measuring unit or the like by an ultrasonic method, an optical method, a magnetic sensor method or the like for measurement.

  As a technique related to this type of cassette holder, Patent Document 1 discloses a cassette housing an X-ray imaging film, a cassette holder in which a grid is fixedly disposed on the front surface thereof, and ultrasonic waves respectively attached to a plurality of locations of the cassette holder. A transmitter, an ultrasonic receiver attached to the X-ray tube side so as to be retractable, and a means for measuring and displaying the distance between each ultrasonic transmitter and the ultrasonic receiver. A featured X-ray oblique entry prevention device is disclosed.

  Further, in Patent Document 2, in a movable X-ray apparatus in which an X-ray tube, a collimator disposed on the front surface portion thereof, and a cassette is disposed on a bed, the X-ray tube and the cassette are kept in parallel with each other, There is disclosed a mobile X-ray apparatus characterized in that non-contact distance measuring means is provided at a plurality of locations between a collimator and a cassette or its attached device.

Japanese Utility Model Publication 2-61310 Japanese Utility Model Publication No. 3-62340

  By the way, the distance measuring unit provided in the cassette holder can be driven by being supplied with electric power, while the cassette holder is required to be portable. Therefore, a battery is used as the power supply source. ing.

  However, in the techniques disclosed in Patent Document 1 and Patent Document 2, there is a case where power is constantly supplied from the battery to the distance measuring unit, and in this case, power consumption by the built-in battery is large. There was a problem that. In particular, in the case of taking a plurality of radiographic images using a round-trip car, it may be impossible to take an image on the way, so that the power consumption is large.

  On the other hand, a power switch or a dedicated switch is provided in the cassette holder, and it is conceivable to switch the power supply state to the distance measuring unit by operating the switch, but in this case, it is necessary to operate the switch. A new problem arises.

  These problems are not limited to the case where the power supply destination is only the distance measurement unit, but may also occur when another device is the power supply destination. This problem is not limited to the above-described IP cassette, but a radiation sensitive layer is disposed on a TFT (Thin Film Transistor) active matrix substrate, and radiation such as an FPD (Flat Panel Detector) that can directly convert radiation into digital data. This is a problem that may also occur when an electronic cassette, which is a portable radiographic image capturing device that captures a radiographic image represented by irradiated radiation using a radiation detector, is a holding target.

  The present invention has been made to solve the above-described problems, and an object thereof is to provide a storage device that can effectively reduce the power consumption of a built-in battery without performing a special operation. To do.

In order to achieve the above object, a storage device according to the present invention includes a housing that houses a portable radiographic image capturing device, and a detection unit that detects whether or not the radiographic image capturing device is stored in the housing. , Housed in the casing, driven by being supplied with electric power, and the radiation imaging apparatus in a state of being held in the casing and the irradiation field by the radiation irradiated from the radiation source A distance measuring device that measures the distance to the collimator , a power source that generates power to be supplied to the distance measuring device , and the detection means detect that the radiographic imaging device is housed in the housing. If the power is supplied from the power source to the distance measuring apparatus, the distance from the power source when said radiation image capturing device is not accommodated in the casing is detected by said detecting means It comprises a switching means for switching to cut off the power supply to the constant device.

According to the accommodation device of the present invention , the portable radiographic imaging device is accommodated in the casing, and whether or not the radiographic imaging device is accommodated in the casing is detected by the detection unit.

Here, in the present invention, the radiation image capturing apparatus in a state where it is housed in the casing, is driven by being supplied with electric power, and is held in the casing, and radiation irradiated from a radiation source. A distance measuring device for measuring a distance between the irradiation field and a collimator for adjusting the irradiation field, and a power source for generating electric power to be supplied to the distance measuring device. When it is detected that the imaging apparatus is accommodated in the casing, power is supplied from the power source to the distance measuring apparatus, and the radiographic imaging apparatus is not accommodated in the casing by the detecting means. Is detected, the power supply from the power source to the distance measuring device is switched off.

As described above, according to the accommodation device of the present invention , when it is detected that the radiographic imaging device is accommodated in the housing, power is supplied from the power source to the distance measuring device , and the radiographic imaging device is applied to the housing. When it is detected that the battery is not contained, the power supply from the power supply to the distance measuring device is switched to be cut off, so the power consumption of the built-in battery can be effectively reduced without any special operation. Can be reduced.

The present invention is pre-Symbol detection means, the radiation image capturing apparatus may be provided on the holding member for holding the radiation image capturing apparatus when accommodated in the housing. As a result, the present invention can be realized in a more space-saving manner.

Further, the present invention is pre-Symbol detection means, each said plurality of different locations radiographic imaging apparatus detects whether or not accommodated in the housing, said switching means, said plurality of positions by the detection means In all of the above, the switching may be performed when it is detected that the radiation imaging apparatus is accommodated in the housing. Thereby, the power consumption of the built-in battery can be reduced more reliably.

In particular, the present invention is a display means for displaying the information indicating the measurement result of the previous SL distance measuring apparatus may further Bei forte. Thereby, the said distance can be grasped | ascertained easily.

Furthermore, the present invention is pre-Symbol radiation image capturing apparatus and may be a stimulable phosphor sheet for recording a radiation image is cassette provided therein. Thereby, even when holding an IP cassette, the power consumption of the built-in battery can be effectively reduced without performing a special operation.
In the present invention, the distance measuring device may be any one of an ultrasonic method, an optical method, and a magnetic sensor method.

According to the present invention, when it is detected that the radiographic imaging device is accommodated in the housing, power is supplied from the power source to the distance measuring device, and it is detected that the radiographic imaging device is not accommodated in the housing. In this case, the power supply from the power source to the distance measuring device is switched to be cut off, so that the power consumption of the built-in battery can be effectively reduced without performing a special operation. An effect is obtained.

It is a perspective view which shows the structure of the radiography system which concerns on embodiment. It is a perspective view which shows the structure of the IP cassette which concerns on embodiment. It is a perspective top view which shows the structure of the cassette holder which concerns on embodiment. It is a block diagram which shows the principal part structure of the electrical system of the cassette holder and radiation generator which concern on embodiment. It is the schematic which shows the structure of the measurement result display screen which concerns on embodiment. It is a perspective top view which shows the other structural example of the cassette holder which concerns on embodiment. It is a block diagram which shows the principal part structure of the other electrical system of the cassette holder which concerns on embodiment. It is a perspective top view which shows the other structural example of the cassette holder which concerns on embodiment. It is a top view which shows the other structural example of the cassette holder which concerns on embodiment.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention will be described in detail with reference to the drawings. Here, a description will be given of an example in which the present invention is applied to a radiation imaging system that captures a radiation image using an IP cassette.

[First Embodiment]
FIG. 1 shows an example of a state in which the radiation imaging system 10 according to the present exemplary embodiment is arranged in a hospital room.

  The radiation imaging system 10 according to the present embodiment is portable, and generates a radiation, and a cassette holder 50 that holds an IP cassette 40 that generates image information indicating a radiation image represented by the irradiated radiation. A radiation generator 80 and a console 70 for controlling the radiation generator 80 are provided.

  The cassette holder 50 is disposed between the bed 15 and the patient 17 lying on the bed 15.

  On the other hand, the radiation generator 80 according to the present embodiment includes an arm 82, and a radiation emitting unit 84 is provided at one end of the arm 82. In addition, the radiation generator 80 is provided with a wheel 88 at the bottom of the main body 86 and is movable in the hospital.

  The console 70 according to the present embodiment is configured by a notebook computer or the like, and receives various operation inputs related to shooting such as shooting conditions from a photographer.

  Further, the radiation emitting unit 84 is disposed on the upper part of the patient 17 who is lying on the bed 15. When the radiation generator 80 is instructed to capture a radiation image via the console 70, the radiation generator 80 irradiates the radiation emission unit 84 with radiation having a radiation amount corresponding to the imaging conditions described above. The radiation emitted from the radiation emitting unit 84 is irradiated to the IP cassette 40 after carrying image information by passing through the patient 17.

  FIG. 2 shows the configuration of the IP cassette 40 according to the present embodiment.

  As shown in the figure, the IP cassette 40 according to the present embodiment includes a casing 42 in which the stimulable phosphor sheet IP is accommodated. An opening 46 for taking in and out the stimulable phosphor sheet IP is provided at the end 44 of the housing 42, and a lid 48 that closes the opening 46 is swingably attached to the housing 42. Yes.

  The housing 42 and the lid 48 are made of various known materials such as various resins and metals such as aluminum. The lid 48 can be opened and closed in the direction of arrow A in FIG. 2 by a known means such as a hinge. Here, the housing 42 and the lid body 48 may be configured as separate members, or may be configured by integral molding of resin or the like so that the lid body 48 can be opened and closed in the arrow A direction. The stimulable phosphor sheet IP is accommodated in the IP cassette 40 with the surface irradiated with radiation facing away from the surface on which the lid 48 is provided.

  The IP cassette 40 according to the present embodiment is used in a state where the lid 48 is closed and held in the cassette holder 50 when the radiographic image is taken, and is obtained by taking the radiographic image. When reading the image information, the lid 48 is opened in a state where it is loaded in a radiation image reading device (not shown), and the stimulable phosphor sheet IP is taken out from the casing 42, and the stimulable phosphor sheet is taken out. Image information is read from the IP.

  FIG. 3 shows the configuration of the cassette holder 50 according to the present embodiment.

  As shown in the figure, the cassette holder 50 according to the present embodiment is provided with a casing 52 that houses the IP cassette 40 therein. The casing 52 has a thin rectangular parallelepiped shape, and a cassette insertion port 53 into which the IP cassette 40 is inserted is provided on one of the side walls.

  On the other hand, inside the housing 52, the inside of the housing 52 is an area near the three side walls excluding the side wall provided with the cassette insertion port 53 and an area for accommodating the IP cassette 40 (hereinafter referred to as “cassette accommodating area”). ) And three partition walls 52A, 52B, and 52C having an L-shaped cross-sectional view.

  The partition wall 52A and the partition wall 52B are respectively provided on the left end side and the right end side of the cassette housing region, and one ultrasonic transmitter 56A is provided on the upper surface (surface on which radiation is incident) of the partition wall 52A. On the other hand, two ultrasonic transmitters 56B and 56C are provided on the upper surface of the partition wall 52B. The ultrasonic transmitters 56 </ b> A to 56 </ b> C are configured to emit ultrasonic waves having a predetermined frequency in a state where electric power is supplied, and regions where the ultrasonic waves are emitted are exposed from the surface of the housing 52. It is provided to do.

  In addition, a battery 54 that supplies driving power to each of the ultrasonic transmitters 56A to 56C is provided in an area partitioned by the partition wall 52A. In addition, in order to avoid complication, in the figure, illustration of the wiring which supplies the electric power from the battery 54 to each ultrasonic transmitter 56A-56C is abbreviate | omitted.

  On the other hand, on the side surface of the partition wall 52C on the cassette accommodation area side, when the IP cassette 40 is accommodated, a plurality of (two in the example shown in the figure) urge the IP cassette 40 toward the cassette insertion port 53. Springs 58A and 58B are erected.

  Further, a holding portion 60 for holding the IP cassette 40 in the cassette housing area when the IP cassette 40 is housed is provided at the front end on the side surface of the partition wall 52A on the cassette housing area side and in the vicinity of the cassette insertion port 53. The spring 58C is erected.

  When the spring 58C is extended most, the holding portion 60 is positioned at the position shown in the figure, while the holding portion 60 extends from the end on the side where the IP cassette 40 is inserted to the end opposite to the end. The shape is inclined toward the center side of the cassette housing area. As a result, when the IP cassette 40 is inserted from the cassette insertion slot 53, the holding portion 60 is moved in the direction of arrow B by contact with the wall surface of the IP cassette 40, and then the entire IP cassette 40 is As a result of being returned to the position shown in the figure by the urging force of the spring 58 </ b> C while being accommodated in the cassette accommodation area, the IP cassette 40 can be held in the cassette accommodation area by the holding unit 60. Further, when taking out the IP cassette 40 from the cassette holder 50, the end of the IP cassette 40 on the cassette insertion port 53 side is moved by the urging force of the spring 58A and the spring 58B by moving the holding portion 60 in the arrow B direction. Since the portion can be exposed to the outside of the casing 52, the IP cassette 40 can be taken out by grasping the end portion.

  Here, in the cassette holder 50 according to the present embodiment, the IP cassette 40 is turned on (connected state) on the end surface of the holding portion 60 on the cassette housing area side while being held in the cassette housing area. A contact 60A is provided that is turned off (cut) when 40 is not held in the cassette housing area.

  FIG. 4 shows the main configuration of the electrical system of the cassette holder 50 and the radiation generator 80 according to the present embodiment.

  As shown in the figure, in the cassette holder 50 according to the present embodiment, one terminal of the battery 54 is connected to one of the ultrasonic transmitters 56A, 56B, and 56C via a contact 60A provided on the holding unit 60. Is connected to the power input terminal. Further, the other terminal of the battery 54 is directly connected to the other power input terminal of each of the ultrasonic transmitters 56A, 56B, and 56C.

  Therefore, in the cassette holder 50 according to the present embodiment, driving power is supplied from the battery 54 to each of the ultrasonic transmitters 56 </ b> A to 56 </ b> C in a state where the IP cassette 40 is held by the cassette holder 50. In a state where the IP cassette 40 is removed from the cassette holder 50, the supply of power from the battery 54 to each of the ultrasonic transmitters 56A to 56C is cut off.

  On the other hand, as shown in the figure, the radiation generator 80 according to the present embodiment is provided with a radiation source controller 90 that controls the operation of the radiation generator 80 as a whole. The radiation generator 80 includes a radiation source 92 that emits radiation, a collimator 94 that restricts an irradiation area of the radiation emitted from the radiation source 92, and an ultrasonic transmitter. A plurality of (in this embodiment, two) ultrasonic receivers 96A and 96B that receive the ultrasonic waves transmitted from 56A to 56C are provided.

  A radiation source 92 and a collimator 94 are respectively connected to the radiation source control unit 90, and the radiation source control unit 90 relates to control related to the radiation emission operation by the radiation source 92 and restriction of the radiation irradiation area by the collimator 94. Each control is performed. In addition, an ultrasonic receiver 96A and an ultrasonic receiver 96B are connected to the radiation source control unit 90, and the radiation source control unit 90 is an ultrasonic wave provided in the cassette holder 50 by the ultrasonic receivers 96A and 96B. The ultrasonic waves transmitted from the acoustic wave transmitters 56A to 56C are received, and the distance to the IP cassette 40 is derived by the triangulation technique based on the received ultrasonic signal level.

  In the radiation imaging system 10 according to the present exemplary embodiment, the ultrasonic receiver 96A is provided at one end of the collimator 94, and the ultrasonic receiver 96B is provided at the other end opposite to the one end. The radiation source control unit 90 is centered on the center of the imaging surface at the position where the IP cassette 40 is disposed, based on the ultrasonic signal level obtained via each of the ultrasonic receiver 96A and the ultrasonic receiver 96B. The rotation angle about the axis can be grasped.

  Although not shown, the radiation generator 80 and the console 70 according to the present embodiment are provided with a communication unit that performs wireless communication with each other, and the radiation generator 80 and the console 70 are related to each other. Various kinds of information such as the above-described shooting conditions can be transmitted and received with each other via the communication unit.

  Next, the operation of the radiation imaging system 10 according to the present exemplary embodiment will be described.

  When taking a radiographic image, a radiographer, doctor, or other such photographer accommodates the IP cassette 40 containing the stimulable phosphor sheet IP in the cassette holder 50. As a result, the IP cassette 40 is held inside the cassette holder 50 by the holding unit 60, while the contact 60A of the holding unit 60 is turned on.

  When the contact 60A of the holding unit 60 is turned on, supply of driving power from the battery 54 to each of the ultrasonic transmitters 56A to 56C is started, and transmission of ultrasonic waves from the ultrasonic transmitters 56A to 56C is started. Is started.

  In this state, as shown in FIG. 1 as an example, the photographer arranges the cassette holder 50 below the imaging target region of the patient 17, and the radiation emitting unit 84 in the radiation generator 80 is attached to the cassette holder 50. Positioning is performed at a position where a radiographic image can be taken by the held IP cassette 40.

  On the other hand, the radiation generator 80 is configured to include the cassette holder 50 (specifically, based on the signal levels of the ultrasonic waves received from the ultrasonic transmitters 56A to 56C by the ultrasonic receivers 96A and 96B by the radiation source control unit 90. 1 shows the distance between the IP cassette 40) and the collimator 94 and the rotation angle of the IP cassette 40 in real time, information indicating the derived distance (hereinafter referred to as “distance information”), and the rotation angle. Information (hereinafter referred to as “rotation angle information”) is transmitted to the console 70 in real time.

  In the console 70, the screen (hereinafter referred to as “measurement result display screen”) indicating the distance and the rotation angle between the IP cassette 40 and the collimator 94 indicated by the distance information and the rotation angle information received from the radiation generator 80 is itself. As an example, the display device 70A provided in FIG.

  On the other hand, the photographer refers to the measurement result display screen displayed on the display device 70A so that the distance and the rotation angle displayed on the screen are substantially the same as those assumed. 50 and at least one of the radiation emitting portions 84 is adjusted.

  Thereafter, the console 70 transmits the imaging conditions to the radiation generator 80. In response to this, the radiation source controller 90 of the radiation generator 80 controls the radiation source 92 to emit radiation according to the received imaging conditions. Thereby, in the IP cassette 40, radiographic images are taken.

  After taking the radiation image, the photographer removes the IP cassette 40 from the cassette holder 50. In response to this, in the cassette holder 50, the contact 60A of the holding unit 60 is turned off, and the power supply from the battery 54 to each of the ultrasonic transmitters 56A to 56C is cut off. As a result, the ultrasonic transmitters 56A to 56A. Transmission of ultrasonic waves from 56C is stopped.

  As described in detail above, according to the present embodiment, the radiographic imaging device (IP cassette 40 in the present embodiment) is mounted on the housing (the book) by the detection means (contact 60A in the present embodiment). In the embodiment, when it is detected that it is housed in the casing 52), the power source (battery 54 in this embodiment) is transferred to the driving device (in this embodiment, the ultrasonic transmitters 56A to 56C). When power is supplied and it is detected that the radiographic imaging device is not housed in the housing, the power supply is switched to be cut off from the drive device without any special operation. The power consumption of the built-in battery can be effectively reduced.

  Further, according to the present embodiment, the detection means holds the radiographic imaging device when the radiographic imaging device is accommodated in the housing (in this embodiment, the holding unit 60). ), The present invention can be realized with more space saving.

  Further, according to the present embodiment, the drive device is between the radiographic image capturing device in a state of being held in the housing and a collimator that adjusts an irradiation field by radiation irradiated from a radiation source. Since the distance measuring device measures the distance, the distance can be measured while reducing the power consumption of the built-in battery.

  Furthermore, according to the present embodiment, since the display means (in this embodiment, the display device 70A) for displaying information indicating the measurement result by the distance measuring device is further provided, the distance can be easily grasped. be able to.

[Second Embodiment]
In the first embodiment, the contact 60A is provided, and only one holding unit 60 that holds the IP cassette 40 in the cassette holder 50 is provided. The ultrasonic transmitters 56A to 56C are provided by one contact 60A. In the second embodiment, a plurality of holding units (here, two) are provided, and the power to the ultrasonic transmitters 56A to 56C is provided by a plurality of contacts. An example of the case of switching the supply state will be described.

  FIG. 6 shows a configuration of a cassette holder 50 according to the second embodiment. Note that the same components in FIG. 3 as those in FIG. 3 are denoted by the same reference numerals as those in FIG.

  As shown in the figure, in the cassette holder 50 according to the second embodiment, the partition wall 52B has the same shape as the partition wall 52A. A holding portion 62 that holds the IP cassette 40 in the cassette housing area when the IP cassette 40 is housed is provided on the side surface of the partition wall 52B on the cassette housing area side and in the vicinity of the cassette insertion port 53. The spring 58D is erected.

  When the spring 58D is extended most, the holding portion 62 is positioned at the position shown in the figure, while the holding portion 62 extends from the end on the side where the IP cassette 40 is inserted to the end opposite to the end. The shape is inclined toward the center side of the cassette housing area. As a result, when the IP cassette 40 is inserted from the cassette insertion port 53, the holding portion 62 is moved in the direction of arrow C by the contact with the wall surface of the IP cassette 40, and then the entire IP cassette 40 is As a result of being returned to the position shown in the figure by the urging force of the spring 58D while being accommodated in the cassette accommodating area, the IP cassette 40 is brought into the cassette accommodating area by the retaining part 62 and the retaining part 60 similar to the first embodiment. Can be held.

  When the IP cassette 40 is taken out from the cassette holder 50, the holding portion 60 is moved in the arrow B direction in the figure, and the holding portion 62 is moved in the arrow C direction in the figure, whereby the springs 58A and 58B are moved. Since the end portion of the IP cassette 40 on the cassette insertion port 53 side can be exposed to the outside of the housing 52 by the urging force, the IP cassette 40 can be taken out by grasping the end portion.

  Here, in the cassette holder 50, the IP cassette 40 is turned on (connected state) on the end surface of the holding portion 62 on the cassette housing area side while being held in the cassette housing area, and the IP cassette 40 is placed in the cassette housing area. There is provided a contact 62A that is turned off (disconnected) when not held.

  FIG. 7 shows a main configuration of the electrical system of the cassette holder 50 according to the second embodiment. Note that the same components in FIG. 4 as those in FIG. 4 are denoted by the same reference numerals as those in FIG.

  As shown in the figure, in the cassette holder 50 according to the second embodiment, the other terminal of the battery 54 is connected to the ultrasonic transmitters 56A, 56B, and 56C via a contact 62A provided on the holding unit 62. Each of the other power input terminals is connected.

  Therefore, in the cassette holder 50 according to the second embodiment, the driving power is supplied from the battery 54 to each of the ultrasonic transmitters 56A to 56C in the state where the IP cassette 40 is held by the cassette holder 50. In the state where the IP cassette 40 is supplied and removed from the cassette holder 50, the two contacts of the contact 60A and the contact 62A are cut off so that the power supply from the battery 54 to each of the ultrasonic transmitters 56A to 56C is cut off. It is switched by.

  As described above in detail, in the second embodiment, in addition to the effects substantially the same as those of the first embodiment, the radiographic imaging apparatus is configured so that the detection unit has a plurality of positions different from each other. It is detected whether or not the radiographic imaging device is accommodated in the casing at all of the plurality of positions by the detection means, and the switching is performed. Therefore, the power consumption of the built-in battery can be reduced more reliably.

[Third Embodiment]
In the first and second embodiments, the example of the case where the detection unit of the present invention is provided on the holding member has been described. However, in the third embodiment, the detection unit of the present invention holds the detection unit. A description will be given of a form example in the case of being configured separately from the member.

  FIG. 8 shows a configuration of a cassette holder 50 according to the third embodiment. Note that the same components in FIG. 3 as those in FIG. 3 are denoted by the same reference numerals as those in FIG.

  As shown in the figure, the cassette holder 50 according to the third embodiment is not provided with the contact 60A in the holding portion 60, and at least one of the spring 58A and the spring 58B (in the example shown in the figure, The only difference from the first embodiment is that a contact point 64A is provided at the tip of the spring 58A).

  The contact 64 </ b> A is turned on (connected) when the IP cassette 40 is accommodated in the cassette holder 50 and held by the holding unit 60, and is turned off when the IP cassette 40 is removed from the cassette holder 50 ( Disconnected state).

  Further, the contact 64A is replaced with one terminal of the battery 54 and one power input terminal of each of the ultrasonic transmitters 56A, 56B, 56C, instead of the contact 60A of the cassette holder 50 according to the first embodiment. It is interposed between Therefore, also in the cassette holder 50 according to the third embodiment, the power for driving from the battery 54 to each of the ultrasonic transmitters 56A to 56C in the state where the IP cassette 40 is held by the cassette holder 50. And the supply of power from the battery 54 to each of the ultrasonic transmitters 56 </ b> A to 56 </ b> C is cut off in a state where the IP cassette 40 is taken out from the cassette holder 50.

  Also in the third embodiment, substantially the same effect as that of the first embodiment can be obtained.

  As mentioned above, although this invention was demonstrated using embodiment, the technical scope of this invention is not limited to the range as described in the said embodiment. Various modifications or improvements can be added to the above-described embodiment without departing from the gist of the invention, and embodiments to which such modifications or improvements are added are also included in the technical scope of the present invention.

  The above embodiments do not limit the invention according to the claims (claims), and all the combinations of features described in the embodiments are essential for the solution means of the invention. Is not limited. The embodiments described above include inventions at various stages, and various inventions can be extracted by appropriately combining a plurality of disclosed constituent elements. Even if some constituent requirements are deleted from all the constituent requirements shown in the embodiment, as long as an effect is obtained, a configuration from which these some constituent requirements are deleted can be extracted as an invention.

  For example, in each of the above embodiments, the case where the battery 54 and the ultrasonic transmitters 56A to 56C are connected in parallel has been described. However, the present invention is not limited to this, and for example, the battery 54 and The ultrasonic transmitters 56A to 56C may be connected in series. Also in this case, the same effects as those of the above embodiments can be obtained.

  In each of the above embodiments, the case where the contact type contacts 60A, 62A, and 64A are applied as the detection means of the present invention has been described. However, the present invention is not limited to this, and for example, optical or It is good also as a form which applies the non-contact type switch by a radio wave type as a detection means of this invention. Also in this case, the same effects as those of the above embodiments can be obtained.

  Further, in each of the above-described embodiments, the case where an ultrasonic method is applied as the distance measuring device of the present invention has been described. However, the present invention is not limited to this, for example, an optical method, a magnetic sensor method, or the like. It is good also as a form which applies distance measuring devices of other methods, such as. Also in this case, the same effects as those of the above embodiments can be obtained.

  In each of the above embodiments, the case where the IP cassette is applied as the radiographic image capturing apparatus of the present invention has been described. An electronic cassette which is a portable radiographic image capturing apparatus that captures a radiographic image represented by irradiated radiation by using a radiation detector such as an FPD that can arrange layers and directly convert radiation into digital data is provided in the present invention. It is good also as a form applied as a radiographic imaging apparatus. Also in this case, the same effects as those of the above embodiments can be obtained.

In each of the above embodiments, the case where an ultrasonic transmitter is applied as the distance measuring device of the present invention has been described. However, the present invention is not limited to this, and is driven by power supply. It goes without saying that other distance measuring devices may be applied. Also in this case, the same effects as those of the above embodiments can be obtained.

  Further, the holding mechanism of the IP cassette 40 in the cassette holder 50 is not limited to that according to each of the above embodiments, and it goes without saying that other conventionally known holding mechanisms can be applied.

  Moreover, although each said embodiment demonstrated the case where a measurement result display screen was displayed by 70 A of display apparatuses provided in the console 70, this invention is not limited to this, As shown in FIG. 9 as an example As described above, the cassette holder 50 is provided with a display device 66 and a communication unit (not shown) that communicates with the radiation generation device 80, and distance information and rotation angle information are transmitted from the radiation generation device 80 to the cassette holder 50. On the other hand, in the cassette holder 50, on the basis of the distance information and the rotation angle information received from the radiation generator 80, the measurement result display screen as shown in FIG. It is good also as a form.

  In addition, the configuration of the radiation imaging system 10 described in the above embodiments (see FIG. 1), the configuration of the IP cassette 40 (see FIG. 2), and the configuration of the cassette holder 50 (see FIGS. 3, 6, and 8). The configuration of the radiation generator 80 (see FIG. 4) is an example, and unnecessary parts are deleted, new parts are added, connection states, etc. are within the scope not departing from the gist of the present invention. Needless to say, you can change it.

  Furthermore, the configuration of the measurement result display screen described in the above embodiments (see FIG. 5) is also an example, and unnecessary information can be deleted or new information can be deleted without departing from the gist of the present invention. Needless to say, it is possible to add or change the display state.

10 Radiation imaging system 40 IP cassette (Radiation imaging device)
50 cassette holder (container)
54 Battery (Power)
56A-56C Ultrasonic Transmitter ( Distance Measuring Device )
58A-58D Spring 60 Holding part (holding member)
60A contact (detection means)
62 Holding part (holding member)
62A Contact (detection means)
64A contact (detection means)
66 Display device (display means)
70 Console 70A Display device 80 Radiation generation device 84 Radiation emission unit 90 Radiation source control unit 92 Radiation source 94 Collimator 96A, 96B Ultrasonic receiver IP Storage phosphor sheet

Claims (6)

A housing that houses a portable radiographic imaging device;
Detecting means for detecting whether or not the radiographic imaging device is accommodated in the housing;
A collimator that is housed in the housing, is driven by being supplied with electric power, and that adjusts an irradiation field by radiation emitted from a radiation source while being held in the housing A distance measuring device for measuring the distance between and
A power source for generating power to be supplied to the distance measuring device ;
When the detection unit detects that the radiographic imaging device is housed in the housing, power is supplied from the power source to the distance measuring device, and the radiographic imaging device is installed in the housing by the detection unit. Switching means for switching so as to cut off the supply of power from the power source to the distance measuring device when it is detected that it is not contained in
A containment device. The storage device according to claim 1, wherein the detection unit is provided on a holding member that holds the radiographic image capturing device when the radiographic image capturing device is stored in the housing. The detecting means detects whether or not the radiographic imaging device is housed in the housing at a plurality of different positions;
The housing according to claim 1, wherein the switching unit performs the switching when the detection unit detects that the radiographic imaging device is housed in the housing at all of the plurality of positions. apparatus. The storage device according to any one of claims 1 to 3, further comprising display means for displaying information indicating a measurement result obtained by the distance measuring device. The storage device according to any one of claims 1 to 4 , wherein the radiographic imaging device is a cassette in which a stimulable phosphor sheet for recording a radiographic image is provided.   The distance measuring device is a device of any one of an ultrasonic method, an optical method, and a magnetic sensor method.
  The storage device according to any one of claims 1 to 5.

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