JP6548382B2 - X-ray diagnostic device - Google Patents

Description

  The embodiment of the present invention relates to an X-ray diagnostic apparatus which emits X-rays from an X-ray generation source and acquires information on the inside of a subject as image information.

  At present, in examinations performed using an X-ray diagnostic apparatus, imaging of an object from various directions is performed. Among these, there is an imaging routine at a reverse tilt position where the foot is at a higher position than the head of the subject placed on the bed. An imaging routine at the reverse tilt position is performed to image the upper stomach of the subject. The conventional X-ray diagnostic apparatus is provided with a hand grip, a pad or the like that is in contact with the shoulder of the subject, in order to prevent the subject from falling off the apparatus in the imaging routine at the reverse inclination position. .

JP 2009-219785 A JP 2012-143475 A

  However, when using the pad, it is necessary to adjust the position of the pad in accordance with the physique of the subject, and to withdraw the pad along with the change of posture, as needed. This reduces the throughput in the imaging routine at the reverse tilt position. In addition, the pad has a feeling of pressure on the subject. For this reason, it becomes a factor that inhibits the postural change performed by the subject in the imaging process (for example, rotating the body about three times to increase the fixation rate of the valium (clinically)). This reduces the throughput in the imaging routine at the reverse tilt position.

  Moreover, since the X-ray diagnostic apparatus supposing vehicle mounting uses a rolling top, for example, the pad has projected on the top. As a result, when performing a checkup on a tall subject, the pad may come in contact with the head of the subject. Due to these factors, the conventional X-ray diagnostic apparatus has a problem that the examination throughput is reduced.

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

According to the embodiment, the X-ray diagnostic apparatus is disposed on both sides in the longitudinal direction of the X-ray tube for generating X-rays, the bed on which the subject is placed, and the bed for the subject to grip a stationary handgrip, attached to the stationary hand grip, and wrist retainer having a fixing portion for fixing the wrist of the subject and the mobile handgrip for the subject to grip, the fixed And a support mechanism slidably supporting the wrist fixing device attached to the hand grip in the longitudinal direction of the bed.

1 is a block diagram showing an example of an X-ray diagnostic apparatus according to the present embodiment. The perspective view which shows the wrist fixation ring shown in FIG. 1 typically. The perspective view which shows typically an example of the X-ray imaging stand shown in FIG. FIG. 7 is a view showing an example of the fixing operation of the wrist fixing ring when the bed shown in FIG. 3 is in the reverse inclination position. The perspective view which shows typically the X-ray imaging stand which used the handgrip as a support mechanism. The schematic diagram which shows the wrist fixing ring and hand grip which are shown in FIG. The perspective view which shows typically the structure which added the ankle fixing ring to the X-ray imaging stand shown in FIG. FIG. 6 is a view showing an example of the fixing operation of the ankle fixing ring when the bed shown in FIG. 5 is in the reverse inclination position.

  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 functions and configurations will be denoted by the same reference numerals, and redundant description will be made only when necessary.

  FIG. 1 is a block diagram showing an example of an X-ray diagnostic apparatus 100 according to the present 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 stand 200 is a mechanical device that performs X-ray imaging for acquiring information on the inside of a subject as image information by irradiating X-rays from an X-ray generation source. The X-ray imaging table 200 irradiates the subject placed on the bed 210 with X-rays from the X-ray tube, and detects X-rays transmitted through the subject by the X-ray detector. The X-ray detector generates an electrical signal having a peak value corresponding to the intensity of the detected X-ray. The X-ray imaging table 200 reads an electrical signal from the X-ray detector by the data acquisition unit 220. The data collection unit 220 performs A / D conversion on the read electric signal to generate raw data having a data value corresponding to the peak value of the electric signal. The X-ray imaging stand 200 supplies the generated raw data to the console unit 300 via a wired or wireless telecommunications line. Here, the bed 210 is rotatably supported by a gantry (not shown) or the like with the short axis direction as a rotation axis.

  The X-ray imaging table 200 further includes a bed driving unit 211, an inclination detecting unit 230, a wrist fixing ring 240, an air pump (air compressor) 250, and a support mechanism 260.

  The bed driving unit 211 is, for example, a motor that supplies power for driving the bed 210 to rotate. The bed driving unit 211 and the bed 210 are connected via an electrical wiring (not shown). The bed driving unit 211 operates by receiving supply of power from a commercial power source.

  The tilt detection unit 230 detects the tilt of the bed 210. The tilt detection unit 230 transmits the detected tilt of the bed 210 to the control unit 350 as angle information.

  The wrist fixing ring 240 is a fixing device for fixing the wrist of the subject. FIG. 2 is a perspective view schematically showing the wrist fixing ring 240 shown in FIG. As shown in FIG. 2, a hand grip 242 gripped by the subject is attached to the wrist fixing ring 240 at a cylindrical portion 241 through which the subject passes a hand. Further, in the cylindrical portion 241, for example, an air bag 243 which is developed by being supplied with air from an air pump 250 is stored. The deployment of the airbag 243 enables the wrist fixing ring 240 to fix the wrist of the subject.

  The wrist fixing ring 240 can be manually operated in response to an operation by an operator (operator) when an emergency such as a power failure or poor physical condition of a subject occurs. For example, by pressing the emergency stop button or pressing the manual operation button, the wrist fixing ring 240 can release fixing without responding to the angle information of the bed 210.

  The support mechanism 260 slidably supports the wrist fixing ring 240 in the longitudinal direction of the bed 210. This makes it possible to move the wrist fixing ring 240 in accordance with subjects of different physiques. In addition, the support mechanism 260 includes a fixing support mechanism (for example, an electromagnetic lock or the like) that can fix the wrist fixing ring 240 at an arbitrary position in the longitudinal direction of the bed 210. As a result, the position of the wrist fixing ring 240 can be adjusted to a position where the wrist of the subject can be easily fixed or a position where the subject can easily pass the hand.

  The console unit 300 functions as a 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, and a control unit 350.

  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 instructions and information input from the user by the input device. As the input device, for example, a keyboard, a mouse, a touch panel, a track ball, various switches, and the like can be used.

  The display unit 340 displays the X-ray image etc. on a display device. As a display device, for example, a CRT display, a liquid crystal display (LCD: Liquid Crystal Display), an organic EL display (OELD: Organic Electro Luminescence Display), a plasma display, or the like can be appropriately used.

  The control unit 350 controls the X-ray imaging table 200 to perform X-ray imaging. The control unit 350 controls the operation of the bed driving unit 211 so that, for example, the bed 210 is rotationally driven according to the inspection. Further, the control unit 350 controls the operation of the air pump 250 so that the wrist of the subject is fixed to the wrist fixing ring 240 according to the inclination (angle information) of the bed 210 detected by the inclination detection unit 230. Do. The control unit 350 controls the operation of the air pump 250 so as to fix the wrist to the wrist fixing ring 240, for example, when the bed 210 is in the reverse inclination position. Further, the control unit 350 controls the operation of the air pump 250 so as to loosen the fixation of the wrist by the wrist fixing ring 240 when the bed 210 is at a position other than the reverse inclination position.

  FIG. 3 is a perspective view schematically showing an example of the X-ray imaging table 200 shown in FIG.

  As shown in FIG. 3, in addition to the configuration shown in FIG. 1, the X-ray imaging stand 200 has, for example, an X-ray tube 280, an X-ray detector 281, an X-ray tube holding portion 290, a bed 210, and a footrest. 213, a connection housing 291, a mount 292, and a pedestal 293.

  The X-ray tube holder 290 holds the X-ray tube 280 at a position perpendicular to the subject mounting surface of the bed 210. The X-ray tube holder 290 is held at one end of the connection housing 291. The other end of the connection housing 291 is provided with a connection portion for connection with the bed 210. In addition, on the back surface of the connection housing 291, that is, on the surface facing the gantry 292, a connection portion for connection with the gantry 292 is provided. The connection housing 291 is rotatably supported by the gantry 292 with the short axis direction of the bed 210 as a rotation axis.

  A connection housing 291 is connected to the side of the bed 210. Above the connection housing 291, a connection portion for connection with the X-ray tube holding portion 290 is provided. Since the bed 210 is connected to the connection housing 291, it is held at various angles under the control of the control unit 350. The bed 210 is held, for example, in a standing position, a horizontal position, an inclined position and a reverse inclined position, depending on the examination. Further, the bed 210 has a top 212 on which a subject is placed. In the X-ray diagnostic apparatus 100 according to the present embodiment, a rolling top is used as the top 212.

  The footrest 213 is set so that the subject can rest on the foot when the bed 210 is held in the standing position. The footrest 213 is provided at the longitudinal end of the bed 210. The wrist fixing ring 240 and the support mechanism 260 are provided on the side of the bed 210.

  The gantry 292 rotatably supports the connection housing 291 with the short axis direction of the bed 210 as a rotation axis. The gantry 292 is attached to a pedestal 293 having a flat plate shape. The pedestal 293 is installed on the floor surface. In addition, the gantry 292 is provided with a bed driving unit 211.

  FIG. 4 is a view showing an example of the fixing operation of the wrist fixing ring 240 when the bed 210 shown in FIG. 3 is in the reverse inclination position.

  As shown in FIG. 4A, when the tilt of the bed 210 is in the upright position, the horizontal position, and the inclined position, the air bag 243 is stored in the cylindrical portion 241. When the position of the bed 210 is changed from any one of the standing position, the horizontal position, and the inclined position to the reverse inclined position, as shown in FIG. 4B, the operation of the air pump 250 by the control unit 350 The air bag 243 is deployed by control. Thus, the wrist fixing ring 240 can fix the wrist of the subject when the bed 210 is in the reverse inclination position.

  According to the above configuration, the X-ray diagnostic apparatus 100 according to the present embodiment is attached to both sides of the X-ray tube 280 for generating X-rays, the bed 210 on which the subject is placed, and the bed 210 in the longitudinal direction. A wrist fixing ring 240 for fixing the wrist of the subject, and a support mechanism 260 slidably supporting the wrist fixing ring 240 in the longitudinal direction of the bed 210, the subject being interlocked with the imaging routine at the reverse inclination position. Fix the wrist of the sample and loosen the fixation of the subject's wrist after the examination. That is, with the above configuration, it is possible to prevent the drop of the subject in the imaging routine at the reverse inclination position without using the pad that is in contact with the shoulder of the subject. As a result, it is not necessary to adjust the position of the pad and retract the pad in accordance with the physique of the subject at any time. In addition, since the above-mentioned pad is not used, it does not inhibit the postural change performed by the subject in the imaging process. Further, in the X-ray diagnostic apparatus assuming vehicle mounting, the pad does not contact the head of the subject because the pad is not used. That is, it is possible to eliminate the decrease in the screening throughput caused by these factors.

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

  Although the wrist fixing ring 240 is supported by the support mechanism 260 provided on the side of the bed 210 in the above embodiment, the present invention is not limited to this.

  FIG. 5 is a perspective view schematically showing an X-ray imaging table 200 using a hand grip 261 as the support mechanism 260. As shown in FIG. FIG. 6 is a schematic view showing the wrist fixing ring 240 and the hand grip 261 shown in FIG.

  As shown in FIG. 5, the hand grips 261 are provided outside the subject mounting surface of the bed 210 and on the side of the bed 210. That is, the hand grips 261 are respectively provided on both sides of the top plate 212 corresponding to the subject mounting surface of the bed 210.

  Further, as shown in FIG. 6, the wrist fixing ring 240 is provided at a part of the hand grip 261. The wrist fixing ring 240 is slidably supported in the longitudinal direction of the bed 210 on the hand grip 261. Furthermore, the wrist fixing ring 240 is rotatably supported with the hand grip 261 as a rotation axis.

  In addition, the wrist fixing ring 240 is provided with a fixing support mechanism (for example, an electromagnetic lock or the like) which can be fixed at any position in the longitudinal direction of the bed 210 on the hand grip 261 and at any position around the hand grip 261. It is done. As a result, the position of the wrist fixing ring 240 can be adjusted to a position where the wrist of the subject can be easily fixed or a position where the subject can easily pass the hand.

  Moreover, in the said embodiment, although the wrist fixing ring 240 was used as a means to prevent fall of a subject, it is not limited to this. FIG. 7 is a perspective view schematically showing a configuration in which an ankle fixing ring 262 is added to the X-ray imaging table 200 shown in FIG. FIG. 8 is a view showing an example of the fixing operation of the ankle fixing ring 262 when the bed shown in FIG. 7 is in the reverse inclination position.

  As shown in FIG. 7, the ankle fixing ring 262 is provided at the longitudinal end of the bed 210, that is, near the footrest 213. The ankle fixing ring 262 is a fixing device for fixing an ankle of a subject.

  FIG. 8 is a view showing an example of the fixing operation of the ankle fixing ring 262 when the bed 210 shown in FIG. 3 is in the reverse inclination position.

  As shown in FIG. 8A, when the tilt of the bed 210 is in the standing position, the horizontal position and the tilting position, the ankle fixing ring 262 is open. When the position of the bed 210 is changed from at least one of the standing position, the horizontal position, and the inclined position to the reverse inclined position, as shown in FIG. 8B, the ankle of the subject is controlled by the control unit 350. Sandwich the Thereby, the ankle of the subject may be fixed together with the wrist of the subject.

  Further, an electromagnet is built in the footrest 213, and a fixing boot provided with an iron plate or the like in the sole is worn on the subject. Thereby, when the bed 210 is in the reverse tilt position, the foot of the subject may be fixed by the control of the electromagnet by the control unit 350.

  In the same manner as the wrist fixing ring 240, the ankle fixing ring 262 may have a structure in which the air bag is stored. Thereby, the ankle fixing ring 262 may fix the ankle of the subject by controlling the operation of the air pump 250 by the control unit 350.

  Moreover, although the X-ray tube holding | maintenance part 290 presupposed that it is a structure for holding the X-ray tube 280 in said embodiment, it is not limited to this. For example, the X-ray tube holder 290 may be a structure for holding both the X-ray tube 280 and the X-ray detector 281. In this case, the X-ray tube holder 290 has, for example, an arm having a substantially C shape, the X-ray tube 280 is mounted at one end, and the X-ray detector 281 is mounted at the other end.

  Further, the control unit 350 may control the operation of the air pump 250 so that the wrist is fixed by the wrist fixing ring 240 at the timing when the hand grip 242 is gripped. In this case, the hand grip 242 is provided with a switch, a sensor or the like for sensing a gripping operation by the subject.

  Moreover, in the said embodiment, although the air pump 250 is contained in the structure of the X-ray imaging stand 200, it is not limited to this. The air pump 250 may be an apparatus independent of the X-ray imaging table 200 and the console unit 300.

  Moreover, in the said embodiment, although the inclination detection part 230 is contained in the structure of the X-ray imaging stand 200, it is not limited to this. The tilt detection unit 230 may be provided in the console unit 300.

  Further, in the above embodiment, the gantry 292 is an electronic circuit (not shown) for executing processing according to an instruction from the console unit 300, and a data acquisition circuit for collecting raw data from the X-ray detector 281. (Not shown) may be accommodated.

  While the embodiments of the present invention have been described above, the embodiments are presented as examples and are not intended to limit the scope of the invention. This novel embodiment can be implemented in other various forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. The embodiment and the modification thereof are included in the scope and the gist of the invention, and are included in the invention described in the claims and the equivalent scope thereof.

  DESCRIPTION OF SYMBOLS 100 ... X-ray diagnostic apparatus, 200 ... X-ray imaging stand, 210 ... Bed, 211 ... Bed drive part, 212 ... Top plate 213 ... Footrest, 220 ... Data collection part, 230 ... Inclination detection part, 240 ... Wrist fixing ring, 241: cylindrical portion 242: hand grip 243: air bag 250: air pump (air compressor) 260: support mechanism 261: hand grip 262: ankle fixing ring 280: X-ray tube 281: X Line detector 290 X-ray tube holding part 291 connection housing 292 mount base 293 pedestal 300 console part 310 image generation part 320 image processing part 330 operation part 340 Display unit, 350 ... control unit.

Claims (6)

An x-ray tube that generates x-rays,
A bed on which the subject is placed;
Fixed hand grips disposed on both sides in the longitudinal direction of the bed for the subject to grip;
A wrist fixing device attached to the fixed hand grip and having a movable hand grip for holding the subject and a fixing part for fixing a wrist of the subject;
An X-ray diagnostic apparatus comprising: a support mechanism slidably supporting the wrist fixing device attached to the fixed hand grip in the longitudinal direction of the bed.   The X-ray diagnostic apparatus according to claim 1, wherein the support mechanism rotatably supports the wrist fixing device with the fixed hand grip as a rotation axis. The fixing unit, the mobile X-ray diagnostic apparatus according to claim 1 or 2, wherein fixing the wrist of the subject to grasp the hand grip by mechanical action of air pressure. A tilt detection unit that detects the tilt of the bed;
A control unit that controls an operation of an air pump such that the fixing unit fixes the wrist according to the tilt of the bed detected by the tilt detection unit;
The X-ray diagnostic apparatus according to claim 3 , further comprising The X-ray diagnostic apparatus according to claim 4 , wherein the control unit controls the operation of the air pump such that the wrist fixing device fixes the wrist when the bed is in the reverse tilt position. The X-ray diagnostic apparatus according to claim 4 , wherein the control unit controls the operation of the air pump so as to release the fixation of the wrist by the wrist fixing device when the bed is at a position other than the reverse inclination position. .

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