JP5846419B2 - X-ray detector and X-ray diagnostic apparatus - Google Patents

Description

  The present invention relates to an X-ray detector that detects X-rays transmitted through a subject, and an X-ray diagnostic apparatus using the same.

  X-ray diagnostics where the X-ray generator is held in the main body of the X-ray diagnostic apparatus and the X-ray detector is configured separately from the main body of the X-ray diagnostic apparatus and placed on the bed to perform X-ray imaging There is a device. In addition, there is an X-ray diagnostic apparatus in which a supporter that supports an X-ray generation unit and a supporter that supports an X-ray detector are separately provided.

  As described above, as an X-ray diagnostic apparatus in which the main body of the X-ray diagnostic apparatus and the X-ray detector are configured separately, for example, an X-ray diagnostic apparatus that can move with a wheeled carriage There is a mobile X-ray diagnostic device that adopts a main body and a portable X-ray detector.

  Patent Document 1 discloses a mode in which a magnetic sensor transmitter is installed and a magnetic sensor receiver is installed on a holding member of an X-ray detector that is configured separately from the main body of the X-ray diagnostic apparatus. . In this embodiment, the magnetic sensor transmitter and receiver are operated to detect the position of the X-ray detector.

JP 2010-119485 A

  X-ray detectors are becoming lighter and easier to carry. For this reason, X-ray detectors are sometimes placed in corridors or in public areas in hospitals. However, the anti-theft function for X-ray detectors has not been established.

  In the position detection method using the magnetic sensor described in Patent Document 1, it is impossible to detect whether the X-ray detector is taken out of the hospital and stolen.

  An object of the present invention is to provide an X-ray detector having an anti-theft function and an X-ray diagnostic apparatus using the same.

In order to achieve the object of the present invention, an X-ray detector according to the present invention includes a plurality of X-ray detection elements that read X-rays transmitted through a subject, and X-ray signals detected by the plurality of X-ray detection elements. An image storage unit that stores X-ray images or X-ray data based thereon, a GPS antenna that receives radio waves from a plurality of GPS satellites, and a GPS reception unit that receives GPS signals based on the radio waves received by the GPS antenna; A position detection unit that detects the position of the device based on the GPS signal received by the GPS reception unit, an allowable range storage unit that stores an allowable range that allows the self movement, and the image storage unit that stores the allowable range storage unit. An image transfer range storage unit that stores an image transfer range set outside the allowable range capable of performing an X-ray image or X-ray data transfer operation, and the position detected by the position detection unit is within the allowable range Whether it is inside A comparison determination unit that determines whether the image transfer range is inside or not, and the image storage unit has its own position outside the allowable range by the comparison determination unit, and When it is determined that the image is within the image transfer range, the X-ray image or the X-ray data stored in the image storage unit is transferred.

Further, a plurality of X-ray detection elements that read X-rays transmitted through the subject , an image storage unit that stores X-ray images or X-ray data based on X-ray signals detected by the plurality of X-ray detection elements, A GPS antenna that receives radio waves from a plurality of GPS satellites, a GPS receiver that receives a GPS signal based on the radio waves received by the GPS antenna, and a self-receiver based on the GPS signal received by the GPS receiver. A position detection unit for detecting a position, an allowable range storage unit for storing an allowable range for allowing its own movement, and the allowable range for performing the transfer operation of the X-ray image or X-ray data stored in the image storage unit. An image transfer range storage unit that stores an image transfer range set outside, and a comparison determination unit that determines whether or not the position detected by the position detection unit is inside the allowable range; Have the picture The memory unit deletes the X-ray image or the X-ray data stored in the image storage unit when the comparison determination unit determines that its position is outside the allowable range. .

  According to the present invention, an anti-theft function can be provided in an X-ray detector. Moreover, the X-ray diagnostic apparatus can be provided with an X-ray detector having an anti-theft function.

The figure which shows the whole structure of the X-ray diagnostic apparatus of this invention. The figure which shows the structure of the X-ray detector of this invention. 1 is a diagram illustrating an example of a determination unit of an X-ray detector according to Embodiment 1 of the present invention. FIG. 3 is a diagram illustrating one determination method of a comparison determination unit according to the first embodiment of the present invention. FIG. 5 is a diagram illustrating an example of a determination unit of an X-ray detector according to Embodiment 2 of the present invention. FIG. 6 is a diagram illustrating one determination method of a comparison determination unit in Embodiment 2 of the present invention. FIG. 6 is a diagram for explaining an authentication function of an X-ray detector according to Embodiment 3 of the present invention.

  As shown in FIG. 1, the mobile X-ray diagnostic apparatus, which is an example of the X-ray diagnostic apparatus of the present invention, generates X-rays by control from the main body 1 of the X-ray diagnostic apparatus and the main body 1 of the X-ray diagnostic apparatus. And an X-ray movable diaphragm 3 for adjusting the X-ray irradiation field. The main body 1 is fixed on the carriage 4, has a built-in motor (not shown) for driving the carriage 4, and has an operation panel (not shown) for setting photographing conditions.

  The X-ray generation unit 2 includes an X-ray tube and a high voltage generation unit, and generates X-rays according to the imaging conditions set on the operation panel. The X-ray movable diaphragm 3 is rotatably mounted immediately below the X-ray generation unit 2 and is slidably supported on the support column 6 via the arm 5 together with the X-ray generation unit 2.

  Further, the X-ray movable diaphragm 3 has a plurality of X-ray shielding lead plates that shield X-rays generated from the X-ray generator 2. The X-ray irradiation area for the subject 10 can be determined by moving each of the plurality of lead plates for X-ray shielding.

  The X-ray generation unit 2 and the X-ray movable diaphragm 3 are moved to predetermined positions at the time of photographing by the rotation of the support 6, the elevation along the support 6, and the extension and contraction of the arm 5.

  An X-ray detector 7 is installed on the bed 8 on which the subject 10 is placed so as to face the X-ray generator 2. A housing portion for the X-ray detector 7 is provided on the side surface of the main body 1 of the X-ray diagnostic apparatus. Therefore, when the X-ray detector 7 is not used, it can be stored in the storage portion of the main body 1 of the X-ray diagnostic apparatus.

  The X-ray generator 2 has an X-ray tube that generates X-rays upon receiving high-voltage power supply. Further, the X-ray generation unit 2 may have an X-ray filter that selectively transmits X-rays having specific energy.

  The X-ray detector 7 includes a plurality of X-ray detection elements that detect X-rays, and detects an X-ray signal irradiated from the X-ray generation unit 2 and transmitted through the subject 10.

Here, an X-ray detector 7 using a GPS (Global Positioning System) satellite will be described.
As shown in FIG. 2, the X-ray detector 7 includes a GPS antenna 20 that receives radio waves from a plurality of GPS satellites, and a GPS receiver 22 that receives GPS signals based on the radio waves received by the GPS antenna 20. And a position detector 24 that detects the position of the X-ray detector 7 based on the GPS signal received by the GPS receiver 22, and the position of the X-ray detector 7 detected by the position detector 24 is within an allowable range. A determination unit 26 that determines whether or not it is inside, a control unit 28 that performs various controls based on the determination information of the determination unit 26, and an alarm if the position of the X-ray detector 7 is not within the allowable range And an alarm unit 30 for performing
Further, the X-ray detector 7 includes a plurality of X-ray detection elements 40 that read X-rays transmitted through the subject 10 and X-ray signals detected by the plurality of X-ray detection elements 40 by performing image processing. An image processing unit 42 constituting the image, an image storage unit 44 for storing the X-ray image formed in the image processing unit 42, and the main body 1 outside the X-ray detector 7 or the illustrated X-ray image And a communication unit 46 that transmits an X-ray image or the like to an external device that does not. The external devices are servers, PCs, consoles, and the like, and include devices having a function of displaying X-ray images.

  The X-ray detector 7 includes a plurality of X-ray detection elements 40 that detect X-rays arranged in a two-dimensional array, and is irradiated from the X-ray generator 2 and transmitted through the subject 10 This device detects an X-ray signal corresponding to the amount of incident light.

  The image processing unit 42 performs image processing on the X-ray signal output from the X-ray detection element 40 in accordance with the arrangement of the plurality of X-ray detection elements 40, and outputs an X-ray image subjected to image processing. Image processing includes gamma conversion, gradation conversion processing, image enlargement / reduction, and the like. The image storage unit 44 stores the X-ray image output from the image processing unit 42. The image storage unit 44 can store the personal information of the subject 10, the imaging time when the X-ray image was captured, and the like together with the X-ray image.

  Note that this embodiment can be realized even if the X-ray detector 7 does not include the image processing unit 42. The image storage unit 44 stores X-ray data based on X-ray signals detected by the plurality of X-ray detection elements 40. The image processing unit 42 that performs image processing on the X-ray data only needs to be included in the main body 1 or an external device.

  The communication unit 46 has a communication function for various signals including wireless or wired communication lines. For example, the communication unit 46 is connected to the main body 1 or an external device via a hospital wireless LAN, and transmits various signals. For example, the X-ray image or X-ray data stored in the image storage unit 44, the position information of the X-ray detector 7 detected by the position detection unit 24, the determination information determined by the determination unit 26, the communication unit 46 To the main body 1 or an external device.

  The display unit is provided in the main body 1 or an external device other than the X-ray detector 7. For example, an X-ray image or X-ray data transmitted from the image storage unit 44 via the communication unit 46 is displayed on the display unit of the main body 1 or an external device. The display unit can also display the position information of the X-ray detector 7 detected by the position detection unit 24 and the determination information determined by the determination unit 26.

  Next, a method for detecting the position of the X-ray detector 7 using a GPS satellite and determining whether or not the position of the X-ray detector 7 is inside the allowable range will be described.

  A radio wave transmitted from a plurality of GPS satellites is always received by the GPS antenna 20, and a GPS signal is received by the GPS receiving unit 22 based on the radio wave received by the GPS antenna 20.

The GPS signal received by the GPS receiver 22 is transmitted to the position detector 24. Position detecting unit 24 calculates the distance between the GPS antenna 20 of the GPS satellite and the X-ray detector 7 detects the position of the X-ray detector 7. The position detection unit 24 can detect the position of the X-ray detector 7 using latitude data (X coordinate) and longitude data (Y coordinate). Thus, since the GPS signal is always received by the GPS antenna 20 and the GPS receiving unit 22, the current position of the X-ray detector 7 can be detected.

  As shown in FIG. 3, the determination unit 26 includes a position storage unit 50 that stores the position of the X-ray detector 7 in real time, an allowable range storage unit 52 that stores an allowable range of the X-ray detector 7, and an X-ray A comparison / determination unit 54 is provided for determining whether or not the position of the detector 7 is within the allowable range.

  The position storage unit 50 is a memory that stores the current position of the X-ray detector 7 in real time or at predetermined time intervals. When the position of the newly detected X-ray detector 7 is transmitted from the position detection unit 24, the position of the previously detected X-ray detector 7 is replaced with the position of the newly detected X-ray detector 7. The position of the newly detected X-ray detector 7 is stored in the position storage unit 50. The position storage unit 50 can also store the position of the X-ray detector 7 as a history together with time information.

  The user sets in advance an allowable range in which the X-ray detector 7 can be arbitrarily moved, and the allowable range storage unit 52 stores latitude data (X coordinate) and longitude data (Y coordinate) of the set allowable range. To do. The allowable range is a range in which it can be determined whether or not the X-ray detector 7 has been stolen outside the hospital. For example, a hospital range (building or site) can be set as an allowable range and stored in the allowable range storage unit 52.

  The comparison / determination unit 54 compares the position of the X-ray detector 7 stored in the position storage unit 50 with the allowable range of the X-ray detector 7 stored in the allowable range storage unit 52. It is determined whether the position of 7 is inside the allowable range.

  The comparison / determination unit 54 will be specifically described with reference to FIG. The allowable range 60 in which the X-ray detector 7 can be arbitrarily moved is the point (X1, Y1), point (X2, Y1), point (X1) in latitude data (X coordinate) and longitude data (Y coordinate). , Y2) and the range surrounded by the point (X2, Y2). Here, as the allowable range 60, points are set at the four corners of the hospital range (building or site). The outside of the allowable range 62 is a range outside the allowable range 60 and is a range outside the hospital.

The position of the point (X1, Y1), the point (X2, Y1), the point (X1, Y2), the point (X2, Y2) and the permissible tolerance range 60 are calculated from the distance between the GPS satellite and the GPS antenna 20. It is stored in advance in the allowable range storage unit 52. Further, the position of the X-ray detector 7 stored in the position storage unit 50 is indicated by a point (a, b) in latitude data (X coordinate) and longitude data (Y coordinate).

  The comparison / determination unit 54 determines that the point (a, b) that is the position of the X-ray detector 7 is the point (X1, Y1), the point (X2, Y1), the point (X1, Y2), and the point (X2, Y2). It is determined whether it is inside the allowable range surrounded by. FIG. 4 shows an example in which the point (a, b) that is the position of the X-ray detector 7 is outside the allowable range 62 (the range outside the allowable range 60).

  The comparison / determination unit 54 transmits determination information as to whether or not the position of the X-ray detector 7 is within the allowable range to the control unit 28. In the example shown in FIG. 4, the comparison / determination unit 54 notifies the control unit 28 that the X-ray detector 7 is outside the allowable range 62 (the range outside the allowable range 60).

  When the X-ray detector 7 is outside the allowable range 62 (a range outside the allowable range 60), the control unit 28 instructs the alarm unit 30 to issue an alarm. The alarm unit 30 issues an alarm based on an instruction from the control unit 28. Therefore, the alarm of the alarm unit 30 can prevent the X-ray detector 7 from being stolen.

  Specifically, the alarm unit 30 issues an alarm with a lamp, sound, vibration, or the like. For example, a lamp that can be lit red is provided on the surface of the X-ray detector 7, and when the X-ray detector 7 is outside the allowable range 62 (a range outside the allowable range 60), the lamp is lit red. Thus, even if the X-ray detector 7 is stolen, the abnormal state can be continuously transmitted from the X-ray detector 7.

  Also, if the X-ray detector 7 is equipped with a sound source that can emit sound and the X-ray detector 7 is outside the allowable range 62 (range outside the allowable range 60), a high-volume alarm is issued from the sound source. Make a voice. The loud alarm is a sound that can be heard even if you hold your ear with your hand. Thus, even if the X-ray detector 7 is stolen, the abnormal state can be continuously transmitted from the X-ray detector 7.

  Further, when the X-ray detector 7 is provided with a vibrating body that can vibrate, and the X-ray detector 7 is outside the allowable range 62 (a range outside the allowable range 60), the vibrating body vibrates. When the vibrating body vibrates, the X-ray detector 7 itself vibrates, and the X-ray detector 7 cannot detect X-rays accurately. As described above, even if the X-ray detector 7 is stolen, the X-ray detector 7 can be restricted in use.

  Further, when the X-ray detector 7 is outside the allowable range 62 (the range outside the allowable range 60), the control unit 28 deletes the X-ray image or X-ray data stored in the image storage unit 44. To give instructions. The image storage unit 44 deletes the stored X-ray image or X-ray data based on an instruction from the control unit 28. In this way, even if the X-ray detector 7 is stolen outside the hospital, the privacy of the subject 10 can be protected by deleting the stored X-ray image or X-ray data from the image storage unit 44. it can.

  Further, the comparison / determination unit 54 in the determination unit 26 can store determination information as to whether or not the position of the X-ray detector 7 is inside the allowable range. When the X-ray detector 7 is outside the allowable range 62 (range outside the allowable range 60), the X-ray detector 7 is connected to the main body 1 or an external device together with the determination information of the determination unit 26 via the communication unit 46. Communicate that it was stolen. Therefore, the user can grasp that the X-ray detector 7 has been stolen from the main body 1 or the external device.

  Further, since the position storage unit 50 in the determination unit 26 stores the position of the X-ray detector 7 as a history, the X-ray detector 7 is outside the allowable range 62 (a range outside the allowable range 60). In this case, the history of the position of the X-ray detector 7 is transmitted to the main body 1 or an external device via the communication unit 46. By tracing the history of the position of the X-ray detector 7 transmitted to the main body 1 or an external device, the user can grasp the theft route of the X-ray detector 7 and inform the police of the X-ray detector 7. Theft route can be communicated. Therefore, the X-ray detector 7 can be prevented from being stolen.

  In the present embodiment, an allowable range 60 in which the X-ray detector 7 can be arbitrarily moved is represented by points (X1, Y1) and (X2) in latitude data (X coordinate) and longitude data (Y coordinate). , Y1), the point (X1, Y2), and the point (X2, Y2). However, the present invention is not limited to the rectangular range. The allowable range 60 may be a range of various shapes such as a trapezoidal range, a polygonal range, a circular range, and an elliptical range.

  In this example, the GPS signal was received and the position of the X-ray detector 7 was detected. However, the X-ray detector 7 is equipped with mobile phone functions (such as CDMA and TDMA) to detect X-rays. The position of the X-ray detector 7 may be obtained by detecting which base station is connected by the device 7.

  According to the X-ray detector 7 of the present embodiment, a GPS antenna 20 that receives radio waves from a plurality of GPS satellites, a GPS receiver 22 that receives GPS signals based on the radio waves received by the GPS antenna 20, Based on the GPS signal received by the GPS receiver 22, the position detector 24 that detects the position of the X-ray detector 7 (self), and the X-ray detector 7 (self) detected by the position detector 24 And a determination unit 26 that determines whether or not the position is within the allowable range. Therefore, the anti-theft function can be provided in the X-ray detector 7.

  Further, a plurality of X-ray detection elements 40 that read X-rays transmitted through the subject, and an image storage unit 44 that stores X-ray images or X-ray data based on X-ray signals detected by the plurality of X-ray detection elements 40. When the position of the X-ray detector 7 (self) is outside the allowable range, the image storage unit 44 deletes the stored X-ray image or X-ray data.

  Here, Example 2 will be described with reference to FIGS. The difference from the first embodiment is that it includes an image transfer range storage unit 70 for storing an image transfer range for transferring an X-ray image or X-ray data stored in the image storage unit 44, and the position of the X-ray detector 7. Is outside the allowable range 60 and inside the image transfer range 64, the X-ray image or X-ray data stored in the image storage unit 44 is transferred to the main body 1 or an external device.

  As shown in FIG. 5, the determination unit 26 includes a position storage unit 50 that stores the position of the X-ray detector 7 in real time, an allowable range storage unit 52 that stores an allowable range of the X-ray detector 7, and an X-ray Image transfer that transfers the X-ray image or X-ray data stored in the image storage unit 44 in addition to the comparison determination unit 54 that determines whether the position of the detector 7 is within the allowable range An image transfer range storage unit 70 for storing the range is provided.

  Since the position storage unit 50, the allowable range storage unit 52, and the comparison determination unit 54 have been described in the first embodiment, description thereof is omitted here.

  The comparison determination unit 54 will be specifically described with reference to FIG. The allowable range 60 in which the X-ray detector 7 can be arbitrarily moved is the point (X1, Y1), point (X2, Y1), point (X1) in latitude data (X coordinate) and longitude data (Y coordinate). , Y2) and the range surrounded by the point (X2, Y2).

  The image transfer range 64 is an outer peripheral range of the allowable range 60 and is a range outside the hospital. The image transfer range 64 is an outer peripheral range within a few meters from the allowable range 60. The image transfer range 64 is, for example, a range in which radio waves from a hospital wireless LAN reach, and an X-ray image or X-ray data stored in the image storage unit 44 is stored in the hospital via the hospital wireless LAN. This is a range that can be transferred to the main body 1 or an external device. The range of the outer periphery can be arbitrarily set by the user.

  As shown in FIG. 6, the image transfer range 64 includes points (X3, Y3), points (X4, Y3), points (X3, Y4), points in latitude data (X coordinate) and longitude data (Y coordinate). It is a range surrounded by (X4, Y4). Further, the outside allowable range 62 is a range outside the allowable range 60 and the image transfer range 64 and is a range outside the hospital.

  The comparison / determination unit 54 determines that the point (a, b) that is the position of the X-ray detector 7 is the point (X1, Y1), the point (X2, Y1), the point (X1, Y2), and the point (X2, Y2). Or within the image transfer range 64 surrounded by the point (X3, Y3), point (X4, Y3), point (X3, Y4), point (X4, Y4) It is determined whether or not. In FIG. 6, the point (a, b) that is the position of the X-ray detector 7 is surrounded by the point (X1, Y1), the point (X2, Y1), the point (X1, Y2), and the point (X2, Y2). An example that is outside the allowable range 60 and inside the image transfer range 64 surrounded by the point (X3, Y3), the point (X4, Y3), the point (X3, Y4), and the point (X4, Y4) ing.

  The comparison determination unit 54 transmits determination information to the control unit 28 as to whether or not the position of the X-ray detector 7 is outside the allowable range 60 and inside the image transfer range 64.

  When the position of the X-ray detector 7 is outside the allowable range 60 and inside the image transfer range 64, the control unit 28 stores the X-ray image or X-ray data stored in the image storage unit 44. Instruct to transfer to main unit 1 or external device. The image storage unit 44 transfers the stored X-ray image or X-ray data to the main body 1 or an external device based on an instruction from the control unit 28. When the X-ray image or the X-ray data is transferred to the main body 1 or the external device, the X-ray image or the X-ray data is deleted from the image storage unit 44.

  According to the X-ray detector 7 of the present embodiment, the X-ray detector 7 includes the image transfer range storage unit 70 that stores the image transfer range for transferring the X-ray image or the X-ray data stored in the image storage unit 44, When the position of the detector 7 (self) is outside the allowable range and inside the image transfer range, the X-ray image or X-ray data stored in the image storage unit 44 is transferred. Therefore, even if the X-ray detector 7 is stolen outside the hospital, the stored X-ray image or X-ray data can be protected by transferring the stored X-ray image or X-ray data to the main unit 1 or an external device. Can do. In addition, the privacy of the subject 10 can be protected by deleting the X-ray image or the X-ray data from the image storage unit 44.

  A third embodiment will now be described with reference to FIG. The difference from the first and second embodiments is that the X-ray detector 7 has an authentication function.

  The X-ray detector 7 includes a plurality of X-ray detection elements 40, an image processing unit 42, an image storage unit 44, a communication unit 46, a control unit 28, and an alarm unit 30. Further, although not shown, a GPS antenna 20, a GPS reception unit 22, a position detection unit 24, and a determination unit 26 are also provided. Since these configurations have been described in the first and second embodiments, description thereof is omitted here.

The X-ray detector 7 includes an ID storage unit 80 that stores the ID number of the X-ray detector 7. The ID number is a serial number assigned to each X-ray detector 7 manufactured and shipped at the factory. Since an ID number is assigned as a serial number, a different ID number is assigned to each X-ray detector 7.

  On the other hand, in the main body 1 of the X-ray diagnostic apparatus, the X-ray detection that can be used in the main body 1 of the X-ray diagnostic apparatus and the communication section 90 that can communicate with the communication section 90 of the X-ray detector 7 wirelessly or by wire ID storage unit 92 for storing the ID number of the detector 7, the ID number of the X-ray detector 7 stored in the ID storage unit 80, and the ID number of the usable X-ray detector 7 stored in the ID storage unit 92 And a display unit 96 for displaying the ID collation information of the ID collation unit 94, the X-ray image output from the X-ray detector 7, and the like.

As indicated by the broken line arrows in FIG. 7, the ID storage unit 92 of the main body 1 of the X-ray diagnostic apparatus stores in advance the ID numbers stored in the ID storage unit 80 of the X-ray detector 7. For example, the main body 1 of the X-ray diagnostic apparatus and the X-ray detector 7 may be sold as a set. In that case, the same ID number is stored in the ID storage unit 92 of the X-ray diagnostic apparatus main unit 1 and the ID storage unit 80 of the X-ray detector 7 when the X-ray diagnostic apparatus main unit 1 and X-ray detector 7 are shipped. To do. Further, the X-ray detector 7 may be sold alone. In that case, the ID number of the X-ray detector 7 is stored in the ID storage unit 92 of the main body 1 of the X-ray diagnostic apparatus used by the hospital user.

  Each time the ID collation unit 94 communicates with the communication unit 46 of the X-ray detector 7 and the communication unit 90 of the main body 1 of the X-ray diagnostic apparatus, the ID number of the X-ray detector 7 stored in the ID storage unit 80 and The ID number of the usable X-ray detector 7 stored in the ID storage unit 92 is collated.

In the ID verification unit 94, when the ID number of the X-ray detector 7 stored in the ID storage unit 80 matches the ID number of the usable X-ray detector 7 stored in the ID storage unit 92, the communication unit Via 90, the control unit 28 of the X-ray detector 7 is informed that the ID numbers of the X-ray detector 7 and the main body 1 of the X-ray diagnostic apparatus match. Then, the control unit 28 instructs the image storage unit 44 to transfer the stored X-ray image or X-ray data to the main body 1 of the X-ray diagnostic apparatus. The image storage unit 44 transfers the stored X-ray image or X-ray data to the main body 1 of the X-ray diagnostic apparatus based on an instruction from the control unit 28. Therefore, the display unit 96 of the main body 1 of the X-ray diagnostic apparatus can display the X-ray image output from the X-ray detector 7 or the X-ray image based on the X-ray data.

  In the ID verification unit 94, when the ID number of the X-ray detector 7 stored in the ID storage unit 80 and the ID number of the usable X-ray detector 7 stored in the ID storage unit 92 do not match, the communication unit Via 90, the controller 28 is informed that the ID numbers of the X-ray detector 7 and the main body 1 of the X-ray diagnostic apparatus do not match. Then, the control unit 28 instructs the alarm unit 30 to issue an alarm. The alarm unit 30 issues an alarm based on an instruction from the control unit 28. Therefore, the alarm of the alarm unit 30 can prevent the X-ray detector 7 from being stolen. Alternatively, the use of the stolen X-ray detector 7 can be eliminated. The control unit 28 also restricts the X-ray image or X-ray data stored in the image storage unit 44 so that it cannot be transferred to the main body 1 of the X-ray diagnostic apparatus. The image storage unit 44 cannot transfer the stored X-ray image or X-ray data to the main body 1 of the X-ray diagnostic apparatus based on an instruction from the control unit 28.

  In this embodiment, since the main body 1 of the X-ray diagnostic apparatus also stores the ID number, the X-ray detector 7 can authenticate the ID number of the main body 1 of the X-ray diagnostic apparatus and make it usable.

  Although the present embodiment has been described using the main body 1 of the X-ray diagnostic apparatus, it can also be implemented by an external device having a function of displaying an X-ray image or an X-ray image based on X-ray data. As with the main unit 1 of the X-ray diagnostic apparatus, the external device also stores an ID storage unit that stores the ID number of the X-ray detector 7 that can be used in the external device, and the ID of the X-ray detector 7 that is stored in the ID storage unit. ID collation unit that collates the number with the ID number of the usable X-ray detector 7 stored in the ID storage unit, ID collation information of the ID collation unit, X-ray image output from the X-ray detector 7, etc. And a display unit for displaying.

  According to this embodiment, even if the X-ray detector 7 is stolen outside the hospital, it can be restricted so that the X-ray detector 7 cannot be used by other X-ray diagnostic apparatuses or external devices. . That is, the use of the stolen X-ray detector 7 can be eliminated.

  1 X-ray diagnostic device body, 2 X-ray generator, 3 X-ray movable diaphragm, 4 carts, 5 arms, 6 struts, 7 X-ray detector, 8 beds, 10 subjects, 20 GPS antenna, 22 GPS receiver , 24 Position detection unit, 26 Judgment unit, 28 Control unit, 30 Alarm unit, 40 X-ray detection element, 42 Image processing unit, 44 Image storage unit, 46 Communication unit

Claims (8)

A plurality of X-ray detection elements for reading X-rays transmitted through the subject, an X-ray image or X-ray data based on the X-ray signals detected by the plurality of X-ray detection elements ; a GPS antenna for receiving radio waves from GPS satellites, a GPS receiver for receiving GPS signals based on the electric wave received by the GPS antenna, self-position based on the received GPS signal by the GPS receiver A position detecting unit for detecting the position, a permissible range storing unit for storing a permissible range allowing movement of itself, and an outside of the permissible range capable of performing a transfer operation of the X-ray image or X-ray data stored in the image storage unit. An image transfer range storage unit that stores the image transfer range set in (2) and whether or not the position detected by the position detection unit is within the allowable range, Whether inside the image transfer range, anda comparison determination unit determines,
The image storage unit, when the comparison determination unit determines that its position is outside the allowable range and inside the image transfer range, the X-ray image stored in the image storage unit or the An X-ray detector characterized by performing an X-ray data transfer operation . The image storage unit deletes the X-ray image or the X-ray data stored in the image storage unit after performing the transfer operation of the X-ray image or the X-ray data stored in the image storage unit. The X-ray detector according to claim 1. A plurality of X-ray detection elements for reading X-rays transmitted through the subject, an X-ray image or X-ray data based on the X-ray signals detected by the plurality of X-ray detection elements; A GPS antenna that receives radio waves from GPS satellites, a GPS receiver that receives GPS signals based on the radio waves received by the GPS antenna, and a position based on the GPS signals received by the GPS receiver. A position detection unit for detection, an allowable range storage unit for storing an allowable range for allowing its own movement, and an outside of the allowable range capable of transferring the X-ray image or X-ray data stored in the image storage unit. An image transfer range storage unit for storing the set image transfer range, and whether or not the position detected by the position detection unit is within the allowable range is determined. A comparison determination unit, a
The image storage unit deletes the X-ray image or the X-ray data stored in the image storage unit when the comparison determination unit determines that its position is outside the allowable range. X-ray detector. It has a position storage unit that stores its own position in real time or at predetermined time intervals,
The comparison determination unit compares the self position stored in the position storage unit with the permissible range stored in the permissible range storage unit, and the self position detected by the position detection unit is compared with the permissible range. 4. The X-ray detector according to claim 1, wherein the X-ray detector determines whether it is inside or not. 5. A communication unit capable of communicating with an external device, and when the comparison determination unit determines that its position is outside the permissible range, the external device transmits that it has been stolen. The X-ray detector as described in any one of Claim 1 thru | or 4. The X-ray detector according to claim 1, further comprising an alarm unit that issues an alarm when the comparison determination unit determines that the position of the device is outside the allowable range. . An X-ray comprising: an X-ray generation unit that generates X-rays; the X-ray detector according to claim 1; and a display unit that displays an X-ray image. Diagnostic device. A communication unit that communicates with the X-ray detector, an ID storage unit that stores an ID number of an available X-ray detector, an ID number assigned to the X-ray detector, and a use stored in the ID storage unit The X-ray diagnostic apparatus according to claim 7, further comprising an ID collating unit that collates with an ID number of a possible X-ray detector.

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