JP6479439B2 - X-ray diagnostic equipment - Google Patents

Description

  Embodiments described herein relate generally to an X-ray diagnostic apparatus that obtains information about the inside of a subject as image information by irradiating X-rays from an X-ray generation source.

  Currently, in examinations performed using an X-ray diagnostic apparatus, imaging of a subject from various directions is performed. Among these, there is an imaging routine at a reverse tilt position where the foot is higher than the head of the subject placed on the bed. The imaging routine at the reverse tilt position is performed to image the upper stomach of the subject. A conventional X-ray diagnostic apparatus has a handgrip gripped by a subject and a pad that is in contact with the shoulder of the subject in order to prevent the subject from falling from the device in an imaging routine at a reverse tilt position. Etc. are installed.

JP 2009-219785 A JP 2012-143475 A

  However, the pad has a feeling of pressure on the subject. For this reason, it becomes a factor which inhibits the posture change (for example, rotating a body about 3 times in order to raise the fixation rate of a value (barium) clinically) performed by the subject in an imaging process. Moreover, since the X-ray diagnostic apparatus which assumes vehicle mounting uses the rolling top plate, for example, the pad has protruded on the top plate. Thereby, when a medical examination is performed on a subject with a high height, the pad may come into contact with the head of the subject. Due to these factors, the conventional X-ray diagnostic apparatus has a problem that the screening throughput is reduced.

  An object of the present embodiment is to provide an X-ray diagnostic apparatus that can eliminate a decrease in throughput in an imaging routine at a reverse tilt position.

According to the embodiment, the X-ray diagnostic apparatus includes an X-ray tube that generates X-rays, a bed on which the subject is placed, an inclination detection unit that detects the inclination of the bed, and a shoulder of the subject. Between the contacted pad, the contact position for contacting the pad with the shoulder, and the retracted position for retracting the pad out of the subject placement surface of the bed, A moving mechanism that movably supports a pad; a drive unit that supplies power to the moving mechanism to move the pad; and the pad that is moved according to the tilt of the bed detected by the tilt detecting unit. A control unit that controls the drive unit so as to move between the retracted position and the contact position .

1 is a block diagram showing an example of an X-ray diagnostic apparatus according to a first embodiment. The figure which shows an example of the movement operation | movement of the pad of the X-ray diagnostic apparatus which concerns on 1st Embodiment. FIG. 6 is a block diagram illustrating an example of an X-ray diagnostic apparatus according to a second embodiment. The figure which shows an example of the movement operation | movement of the pad of the X-ray diagnostic apparatus which concerns on 2nd Embodiment. The block diagram which shows an example of the X-ray diagnostic apparatus which concerns on 3rd Embodiment. The figure which shows an example of the movement operation | movement of the pad of the X-ray diagnostic apparatus which concerns on 3rd Embodiment.

  Hereinafter, the X-ray diagnostic apparatus according to the present embodiment will be described with reference to the drawings. In the following description, components having substantially the same function and configuration are denoted by the same reference numerals, and redundant description will be given only when necessary.

(First embodiment)
FIG. 1 is a block diagram illustrating an example of an X-ray diagnostic apparatus 100 according to the first embodiment.

  As shown in FIG. 1, the X-ray diagnostic apparatus 100 includes an X-ray imaging table 200 and a console unit 300.

  The X-ray imaging table 200 is a mechanical device that performs X-ray imaging for irradiating X-rays from an X-ray generation source and acquiring information relating to the inside of a subject as image information. The X-ray imaging table 200 irradiates the subject placed on the bed 230 with X-rays from the X-ray tube 210, and the X-ray detector 211 detects X-rays transmitted through the subject. The X-ray detector 211 generates an electrical signal having a peak value corresponding to the detected X-ray intensity. The X-ray imaging table 200 reads an electrical signal from the X-ray detector 211 by a data acquisition circuit. The data collection circuit A / D converts the read electrical signal to generate raw data having a data value corresponding to the peak value of the electrical signal. The X-ray imaging stand 200 supplies the generated raw data to the console unit 300 via a wired or wireless telecommunication line. The X-ray imaging table 200 in the first embodiment includes, for example, an X-ray tube holding unit 220, a bed 230, and a mount 240.

  The X-ray tube holding unit 220 holds the X-ray tube 210 at a position perpendicular to the subject placement surface of the bed 230. The X-ray tube holding unit 220 is held at one end of the connection housing 221. A connection portion for connection to the bed 230 is provided at the other end of the connection housing 221. In addition, a connection portion for connection to the gantry 240 described later is provided on the back surface of the connection housing 221, that is, the surface facing the gantry 240. Further, the connection housing 221 is supported by the gantry 240 so as to be rotatable about the short axis direction of the bed 230 as a rotation axis.

  As for the bed 230, the connection housing | casing is connected to the side surface. A connection part for connection with the connection case 221 is provided below the connection case, and a connection part for connection with the X-ray tube holding part 220 is provided above the connection case. Yes. Since the bed 230 is connected to the connection housing 221, the bed 230 is held at various angles under the control of the control unit 360 described later. The bed 230 is held in, for example, a standing position, a horizontal position, an inclined position, and a reverse inclined position.

  The bed 230 includes a top plate 231, a pad 232, a moving mechanism 233, a footrest 235 and a hand grip 236. A subject is placed on the top plate 231. In the X-ray diagnostic apparatus 100 according to the first embodiment, a rolling top plate is used as the top plate 231. The pad 232 is brought into contact with the shoulder of the subject according to the inclination of the bed 230.

  The moving mechanism 233 includes a contact position for bringing the pad 232 into contact with the shoulder of the subject, and a retreat position for retracting the pad 232 outside the subject placement surface of the bed 230, that is, outside the top plate 231. The pad 232 is movably supported between the two. In the first embodiment, the retracted position is provided in the longitudinal direction end of the bed 230 and in a direction perpendicular to the bed 230. The moving mechanism 233 includes a guide rail 234 that guides the movement of the pad 232 between the contact position and the retracted position.

  The footrest 235 is installed so that the subject can place his / her feet when the bed 230 is held in a standing position. The footrest 235 is provided at an end portion in the longitudinal direction of the bed 230 different from an end portion where the moving mechanism 233 is located. The hand grip 236 is provided on each side of the bed 230 so as to be gripped by the subject.

  The gantry 240 rotatably supports the connection housing 221 with the short axis direction of the bed 230 as a rotation axis. The gantry 240 is attached to a pedestal 241 having a flat plate shape. The pedestal 241 is installed on the floor surface. Further, the gantry 240 includes a bed driving unit and a moving mechanism driving unit (not shown). The bed driving unit and the moving mechanism driving unit are motors that supply power for rotational driving of the bed 230 and movement of the pad 232 by the moving mechanism 233. The bed driving unit and bed 230 and the moving mechanism driving unit and moving mechanism 233 are connected to each other via electrical wiring (not shown). The bed driving unit and the moving mechanism driving unit operate by receiving power from a commercial power source.

  The console unit 300 functions as the center of the X-ray diagnostic apparatus 100. The console unit 300 includes, for example, an image generation unit 310, an image processing unit 320, an operation unit 330, a display unit 340, an inclination detection unit 350, and a control unit 360.

  The image generation unit 310 performs various correction processes on the raw data from the X-ray imaging table 200 to generate X-ray image data. The image processing unit 320 performs various types of image processing on the X-ray image generated by the image generation unit 310.

  The operation unit 330 receives various commands and information input from the user by the input device. As the input device, for example, a keyboard, a mouse, a touch panel, a trackball, and various switches can be used.

  The display unit 340 displays the X-ray image or the like on a display device. As the display device, for example, a CRT display, a liquid crystal display (LCD), an organic EL display (OELD), a plasma display, or the like can be used as appropriate.

  The inclination detection unit 350 detects the inclination of the bed 230. The inclination detection unit 350 transmits the detected inclination of the bed 230 to the control unit 360 as angle information.

  The control unit 360 controls the X-ray imaging table 200 in order to perform X-ray imaging. For example, the control unit 360 controls the couch driving unit so as to change the inclination of the couch 230. Further, the control unit 360 controls the moving mechanism driving unit so as to move the pad 232 between the retracted position and the contact position in accordance with the inclination of the bed 230 detected by the inclination detecting unit 350. To do. For example, when the bed 230 is in the reverse tilt position, the control unit 360 controls the moving mechanism driving unit to move the pad 232 from the retracted position to the contact position. Further, the control unit 360 controls the moving mechanism driving unit to move the pad 232 from the contact position to the retracted position when the bed 230 is in a position other than the reverse tilt position. Note that the control unit 360 may control the moving mechanism driving unit so as to move the pad 232 at the same time, for example.

  Here, the movement operation of the pad in the X-ray diagnostic apparatus according to the first embodiment will be described with a specific example.

  FIG. 2 is a diagram illustrating an example of the movement operation of the pad 232 when the bed 230 illustrated in FIG. 1 is in the reverse tilt position.

  As shown in FIG. 2A, when the bed 230 is tilted in the standing position, the horizontal position, and the tilting position, the pad 232 is provided at the longitudinal end of the bed 230 and in the direction perpendicular to the bed 230. Is retracted to the retracted position. When the position of the bed 230 is changed from any one of the standing position, the horizontal position, and the tilting position to the reverse tilting position, the control of the moving mechanism driving unit by the control unit 360 is performed as illustrated in FIG. Thus, the pad 232 is lowered while being twisted from the retracted position to the contact position. After the pad 232 is moved, as shown in FIG. 2C, the pad 232 is brought into contact with the subject at the contact position. Although not shown in FIG. 2, the X-ray diagnostic apparatus according to the first embodiment includes a lock mechanism (for example, an electromagnetic lock) that fixes the pad 32 at the contact position.

  According to the above configuration, the X-ray diagnostic apparatus 100 according to the first embodiment is brought into contact with the X-ray tube that generates X-rays, the bed 230 on which the subject is placed, and the shoulder of the subject. The pad 232 is placed between the pad 232, a contact position for bringing the pad 232 into contact with the shoulder of the subject, and a retreat position for retracting the pad 232 outside the subject placement surface of the bed 230. And a moving mechanism 233 that is movably supported. This makes it possible to move the pad 232 to the retracted position at the time of posture change performed by the subject during the imaging process. Further, in the X-ray diagnostic apparatus that is assumed to be mounted on the vehicle, even if the pad 232 may come into contact with the head of the subject, the pad 232 can be moved to the retracted position. That is, it is possible to eliminate a decrease in screening throughput caused by these factors.

  In addition, the X-ray diagnostic apparatus assumed to be mounted on a vehicle has a bed 230 smaller than the X-ray diagnostic apparatus installed in a hospital or the like, and it is difficult to secure a retreat space for the pad 232 on the subject placement surface. . In the X-ray diagnostic apparatus 100 according to the first embodiment, since the retreat position of the pad 232 is provided in the direction perpendicular to the subject placement surface, it is possible to ensure a retreat space wider than the conventional case. Become.

  Therefore, the X-ray diagnostic apparatus 100 according to the first embodiment can eliminate a decrease in throughput in the imaging routine at the reverse tilt position.

  Further, the moving mechanism 233 has a structure capable of moving the pad 232 in a direction perpendicular to the subject placement surface even when the pad 232 is positioned at the contact position during body posture change. You may have.

  Further, the moving mechanism 233 may have a structure that can move in the longitudinal direction of the bed 230 so that the pad 232 is brought into contact with the physique of the subject.

(Second Embodiment)
FIG. 3 is a block diagram illustrating an example of the X-ray diagnostic apparatus 101 according to the third embodiment. Note that a detailed description of points common to the X-ray diagnostic apparatus according to the first embodiment is omitted.

  As shown in FIG. 3, the X-ray diagnostic apparatus 101 includes an X-ray imaging table 200 and a console unit 300. The X-ray imaging table 200 includes, for example, an X-ray tube holding unit 220, a bed 230, and a gantry 240.

  The bed 230 includes a top plate 231, a pad 232, a moving mechanism 237, a footrest 235 and a hand grip 236. A subject is placed on the top plate 231. In the X-ray diagnostic apparatus 100 according to the first embodiment, a rolling top plate is used as the top plate 231. The pad 232 is brought into contact with the shoulder of the subject according to the inclination of the bed 230.

  The movement mechanism 237 has a contact position for bringing the pad 232 into contact with the shoulder of the subject, and a retreat position for retracting the pad 232 outside the subject placement surface of the bed 230, that is, outside the top plate 231. The pad 232 is movably supported between the two. In the second embodiment, the retracted position is provided on the side of the bed 230.

  The console unit 300 functions as the center of the X-ray diagnostic apparatus 101. The console unit 300 includes, for example, an image generation unit 310, an image processing unit 320, an operation unit 330, a display unit 340, an inclination detection unit 350, and a control unit 360.

  The control unit 360 controls the X-ray imaging table 200 in order to perform X-ray imaging. For example, the control unit 360 controls the bed driving unit so as to change the inclination of the bed 230. Further, the control unit 360 controls the moving mechanism driving unit so as to move the pad 232 between the retracted position and the contact position in accordance with the inclination of the bed 230 detected by the inclination detecting unit 350. To do. For example, when the bed 230 is in the reverse tilt position, the control unit 360 controls the moving mechanism driving unit so as to move the pad 232 from the retracted position to the contact position by the flip-up method. In addition, when the bed 230 is in a position other than the reverse tilt position, the control unit 360 controls the moving mechanism driving unit so as to move the pad 232 from the contact position to the retracted position by the flip-up method. Note that the control unit 360 may control the moving mechanism driving unit so as to move the pad 232 at the same time, for example.

  Here, the movement operation of the pad in the X-ray diagnostic apparatus 101 according to the second embodiment will be described with a specific example.

  FIG. 4 is a diagram illustrating an example of the movement operation of the pad 232 when the bed 230 illustrated in FIG. 3 is in the reverse tilt position.

  As shown in FIG. 4A, when the bed 230 is tilted in the standing position, the horizontal position, and the tilting position, the pad 232 is retracted to the retracted position provided on the side of the bed 230. When the position of the bed 230 is changed from any one of the standing position, the horizontal position, and the tilt position to the reverse tilt position, as shown in FIG. 4B, the control of the moving mechanism driving unit by the control unit 360 is performed. As a result, the pad 232 moves from the retracted position to the contact position in a flip-up manner. After the pad 232 is moved, as shown in FIG. 4C, the pad 232 is brought into contact with the subject at the contact position. Although not shown in FIG. 4, the X-ray diagnostic apparatus according to the second embodiment includes a lock mechanism (for example, an electromagnetic lock) that fixes the pad 32 at the contact position.

  According to the above configuration, the X-ray diagnostic apparatus 101 according to the second embodiment is brought into contact with the X-ray tube that generates X-rays, the bed 230 on which the subject is placed, and the shoulder of the subject. The pad 232 is placed between the pad 232, a contact position for bringing the pad 232 into contact with the shoulder of the subject, and a retreat position for retracting the pad 232 outside the subject placement surface of the bed 230. And a moving mechanism 237 that is movably supported. This makes it possible to move the pad 232 to the retracted position at the time of posture change performed by the subject during the imaging process. Further, in the X-ray diagnostic apparatus that is assumed to be mounted on the vehicle, even if the pad 232 may come into contact with the head of the subject, the pad 232 can be moved to the retracted position. That is, it is possible to eliminate a decrease in screening throughput caused by these factors.

  Therefore, the X-ray diagnostic apparatus 101 according to the second embodiment can eliminate a decrease in throughput in the imaging routine at the reverse tilt position.

  Further, the moving mechanism 237 has a structure capable of moving the pad 232 in the direction perpendicular to the subject placement surface even when the pad 232 is positioned at the contact position when the posture is changed by the subject. You may have.

  The moving mechanism 237 may have a structure that can move in the longitudinal direction of the bed 230 so that the pad 232 is brought into contact with the physique of the subject.

(Third embodiment)
FIG. 5 is a block diagram illustrating an example of the X-ray diagnostic apparatus 102 according to the third embodiment. Note that a detailed description of points common to the X-ray diagnostic apparatus according to the first embodiment is omitted.

  As shown in FIG. 5, the X-ray diagnostic apparatus 102 includes an X-ray imaging table 200 and a console unit 300. The X-ray imaging table 200 includes, for example, an X-ray tube holding unit 220, a bed 230, and a gantry 240.

  The bed 230 includes a top plate 231, a pad 232, a storage unit 238, a footrest 235 and a hand grip 236. A subject is placed on the top plate 231. In the X-ray diagnostic apparatus 100 according to the first embodiment, a rolling top plate is used as the top plate 231. The pad 232 is brought into contact with the shoulder of the subject according to the inclination of the bed 230.

  The storage unit 238 is provided on the side portion of the bed 230, and in the third embodiment, the retracted position is provided on the side portion of the bed 230.

  The console unit 300 functions as the center of the X-ray diagnostic apparatus 102. The console unit 300 includes, for example, an image generation unit 310, an image processing unit 320, an operation unit 330, a display unit 340, an inclination detection unit 350, and a control unit 360.

  The control unit 360 controls the X-ray imaging table 200 in order to perform X-ray imaging. For example, the control unit 360 controls the bed driving unit so as to change the inclination of the bed 230. In addition, the control unit 360 controls the moving mechanism driving unit to store the pad 232 from the storage unit 238 into the deployment or storage unit 238 according to the tilt of the bed 230 detected by the tilt detection unit 350. . For example, when the bed 230 is in the reverse tilt position, the control unit 360 controls the moving mechanism driving unit so that the pad 232 is deployed from the storage unit 238 to the contact position by the flip-up method. In addition, when the bed 230 is in a position other than the reverse tilt position, the control unit 360 controls the moving mechanism driving unit so that the pad 232 is stored in the storage unit 238 from the contact position by the flip-up method.

  Here, the movement operation of the pad in the X-ray diagnostic apparatus according to the third embodiment will be described with a specific example.

  FIG. 6 is a diagram illustrating an example of the movement operation of the pad 232 when the bed 230 illustrated in FIG. 5 is in the reverse tilt position.

  As illustrated in FIG. 6A, when the bed 230 is tilted in the standing position, the horizontal position, and the tilting position, the pad 232 is stored in the storage unit 238 provided on the side of the bed 230. When the position of the bed 230 is changed from any one of the standing position, the horizontal position, and the tilt position to the reverse tilt position, as shown in FIG. 6B, the control of the moving mechanism driving unit by the control unit 360 is performed. As a result, the pad 232 is unfolded from the retracted position to the contact position in a flip-up manner. After deployment of the pad 232, the pad 232 is brought into contact with the subject at the contact position. Although not shown in FIG. 6, the X-ray diagnostic apparatus according to the third embodiment includes a lock mechanism (for example, an electromagnetic lock) that fixes the pad 32 at the contact position.

  According to the above configuration, the X-ray diagnostic apparatus 102 according to the third embodiment includes the storage unit 238 in addition to the configuration of the X-ray diagnostic apparatus 101 according to the second embodiment. Accordingly, the pad 232 can be stored in the storage unit 238 at the time of posture change performed by the subject during the imaging process. Further, in the X-ray diagnostic apparatus that is assumed to be mounted on the vehicle, the pad 232 can be stored in the storage unit 238 even when the pad 232 may contact the head of the subject. That is, it is possible to eliminate a decrease in screening throughput caused by these factors.

  Therefore, the X-ray diagnostic apparatus 102 according to the third embodiment can eliminate a decrease in throughput in the imaging routine at the reverse tilt position.

  In the first to third embodiments, the X-ray tube holding unit 220 is a structure for holding the X-ray tube 210. However, the present invention is not limited to this. For example, the X-ray tube holding unit 220 may be a structure for holding both the X-ray tube 210 and the X-ray detector 211. In this case, the X-ray tube holding unit 220 has, for example, an arm having a substantially C shape, and is equipped with an X-ray tube 210 at one end and an X-ray detector 211 at the other end.

  In the X-ray diagnostic apparatus according to the first to third embodiments, when an emergency such as a power failure or poor physical condition of the subject occurs, the pad 232 is pressed by pressing the emergency stop button or the manual operation button. Is unlocked. As a result, the pad 232 can be manually operated.

  In the first to third embodiments, the gantry 240 receives an electronic circuit (not shown) for executing processing according to an instruction from the console unit 300 and raw data from the X-ray detector 211. A data collecting circuit (not shown) for collecting may be accommodated.

  As mentioned above, although some embodiment of this invention was described, these embodiment is shown as an example and is not intending limiting the range of invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

  DESCRIPTION OF SYMBOLS 100 ... X-ray diagnostic apparatus, 200 ... X-ray imaging stand, 210 ... X-ray tube, 220 ... X-ray tube holding part, 221 ... Connection housing | casing, 230 ... Bed, 231 ... Top plate, 232 ... Pad, 233,237 ...... Moving mechanism, 234, guide rail, 235, footrest, 236, hand grip, 238, storage unit, 240, frame, 241, pedestal, 300, console unit, 310, image generating unit, 320, image processing unit, 330 Operation unit, 340 ... display unit, 350 ... tilt detection unit, 360 ... control unit.

Claims (7)

An X-ray tube that generates X-rays;
A bed on which the subject is placed;
An inclination detector for detecting the inclination of the bed;
A pad that comes into contact with the shoulder of the subject;
The pad is movably supported between a contact position for bringing the pad into contact with the shoulder and a retreat position for retracting the pad out of the subject placement surface of the bed. A moving mechanism;
A drive unit for supplying power for moving the pad to the moving mechanism;
A control unit that controls the drive unit to move the pad between the retracted position and the contact position according to the tilt of the bed detected by the tilt detecting unit;
An X-ray diagnostic apparatus comprising: The controller is
When the bed is in a reverse tilt position, the drive unit is controlled to move the pad from the retracted position to the contact position;
The X-ray diagnostic apparatus according to claim 1, wherein when the bed is in a position other than a reverse tilt position, the drive unit is controlled to move the pad from the contact position to the retracted position. The retracted position, the longitudinal end of the bed, and X-ray diagnostic apparatus according to claim 1 or 2, wherein provided in a vertical direction with respect to the bed. The X-ray diagnostic apparatus according to claim 3 , wherein the moving mechanism includes a guide rail that guides movement of the pad between the contact position and the retracted position. The retracted position, X-rays diagnostic apparatus as claimed in any one of claims 1 to 4 is provided on the side of the bed. The X-ray diagnostic apparatus according to claim 5 , further comprising a storage unit that is installed at the retracted position and stores the pad. An X-ray tube that generates X-rays;
A bed on which the subject is placed;
A pad that comes into contact with the shoulder of the subject;
The pad is movably supported between a contact position for bringing the pad into contact with the shoulder and a retreat position for retracting the pad out of the subject placement surface of the bed. A moving mechanism;
Comprising
The retracted position is provided at an end in the longitudinal direction of the bed and in a direction perpendicular to the bed,
The X-ray diagnostic apparatus, wherein the moving mechanism includes a guide rail that guides movement of the pad between the contact position and the retracted position.

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