JP5426268B2 - Mobile X-ray equipment - Google Patents

Description

  The present invention relates to a mobile X-ray imaging apparatus, and more particularly to a mobile X-ray imaging apparatus for moving to a hospital room or the like to perform X-ray imaging of a patient.

  Some hospitalized patients have severe medical conditions and cannot go to the X-ray laboratory and receive an X-ray examination. There is a mobile X-ray imaging apparatus as an apparatus for performing such an X-ray examination of a patient. That is, the mobile X-ray imaging apparatus includes an X-ray imaging apparatus mounted on a moving carriage, and the X-ray imaging apparatus performs X-ray imaging by moving the X-ray imaging apparatus from the storage location to the bedside where the patient is sleeping. Is. Such a mobile X-ray imaging apparatus moves to a hospital room by operating a traveling handle fixed to a casing unit mounted on an electric mobile carriage.

  In such a mobile X-ray imaging apparatus provided with a traveling handle, a traveling handle is provided on each of the front side and the rear side of the carriage as in the mobile X-ray apparatus described in Patent Document 1. Is described. In the mobile X-ray imaging apparatus described in Patent Document 1, the traveling handle is interlocked with a lock mechanism that fixes the X-ray generation unit to the apparatus body when the X-ray generation unit is not used. It is configured to move up and down.

JP 2008-61944 A

  The means for detecting the control signal for the movement speed of the carriage uses a sensor for detecting the amount of movement of the handle in the horizontal direction. Therefore, in order for the operator to move the carriage efficiently, a force is applied to the handle in the horizontal direction. It is necessary to act. That is, it is preferable that the operation handle is positioned at a height at which the operator's forearm is kept horizontal. However, because the height of the operator varies from person to person, there is a concern that even if the height of the handle is appropriate for a specific operator, the height may not be appropriate for another operator. . That is, in the conventional mobile X-ray imaging apparatus, since the height of the traveling handle is determined based on the average extension, for the operator who is higher or lower than the average height, This is because the mounting height does not match.

  In this case, for the operator who feels that the mounting height of the traveling handle is high, the pushing force is directed upward from the horizontal, and for the operator who feels that the mounting height of the traveling handle is low, the pushing force is higher than the horizontal. Since it faces downwards, it requires a larger pressing force than an operator whose traveling handle is at the correct height.

  Furthermore, an operator having a high height must operate the traveling handle in a posture in which his / her waist is bent, which is a heavy physical burden.

  The present invention has been made in view of these problems, and an object of the present invention is to provide a mobile X-ray imaging apparatus capable of improving operability when the height of the operator is different. is there.

(1) In order to solve the above-mentioned problem, the X-ray imaging unit having an X-ray generation unit that irradiates the subject with X-rays, a cart on which the X-ray imaging unit is mounted, a side surface and a rear part of the cart. A traveling X-ray imaging apparatus comprising: a traveling handle for controlling traveling of the carriage; a handle height adjusting mechanism for changing a height of the traveling handle from a floor surface ; An operation panel for setting irradiation conditions, the handle height adjustment mechanism and the operation panel are supported, and the handle height adjustment mechanism and the operation panel are interlocked by rotating around the one side. An operation panel surface adjustment mechanism having a frame that moves in the vertical direction to change the height from the floor surface, and a set value input means for setting the travel handle, or the height of the travel handle and the operation panel And the above Based on the set value set by the value input means, the handle height adjusting mechanism and / or the operation panel surface adjusting mechanism is used to move the traveling handle or the height of the traveling handle and the operation panel. A mobile X-ray imaging apparatus.

  According to the present invention, the operability can be greatly improved even if there is a large difference in the height of the operator.

  Other effects of the present invention will become apparent from the description of the entire specification.

It is a figure for demonstrating the whole structure of the mobile X-ray imaging apparatus of Embodiment 1 of this invention. It is a block diagram for demonstrating the whole structure of the mobile X-ray imaging apparatus of Embodiment 1 of this invention. It is a figure for demonstrating the detailed structure of the handle | steering-wheel height adjustment mechanism in the mobile X-ray imaging apparatus of Embodiment 1 of this invention. It is a flowchart for demonstrating the height adjustment operation | movement of the handle for driving | running | working in the mobile X-ray imaging apparatus of Embodiment 1 of this invention. It is a figure for demonstrating the detailed structure of the handle height adjustment mechanism and the adjustment mechanism of an operation panel surface in the mobile X-ray imaging apparatus of Embodiment 1 of this invention. It is a block diagram for demonstrating the whole structure of the mobile X-ray imaging apparatus of Embodiment 2 of this invention.

  Embodiments to which the present invention is applied will be described below with reference to the drawings. However, in the following description, the same components are denoted by the same reference numerals, and repeated description is omitted.

<Embodiment 1>
<overall structure>
FIG. 1 is a diagram for explaining the overall configuration of a mobile X-ray imaging apparatus according to Embodiment 1 of the present invention. Hereinafter, the overall configuration of the mobile X-ray imaging apparatus according to Embodiment 1 will be described with reference to FIG. explain. However, the movable X-ray imaging apparatus of Embodiment 1 has the same configuration as that of the conventional X-ray apparatus except for the height adjustment mechanism of the traveling handle. Therefore, in the following description, the height adjustment mechanism and the control unit thereof according to the first embodiment will be described in detail.

  As shown in FIG. 1, the mobile X-ray imaging apparatus according to the first embodiment has a configuration in which the X-ray imaging apparatus is mounted on a moving carriage. The moving carriage is based on a carriage 11, two drive wheels (rear wheels) 12 arranged at the rear of the carriage 11, two front wheels 13 arranged at the front, and a drive output from the control circuit. A travel drive mechanism 14 for driving the drive wheels 12 and a housing 15 are provided, and a battery 16 is accommodated in the internal space of the carriage 11. In the mobile carriage of the first embodiment, the driving wheel 12 is driven by the motor of the traveling drive mechanism 14 by operating a traveling handle, which will be described in detail later, in the direction of arrow A in the figure (the longitudinal direction of the apparatus main body). The apparatus main body can move in the direction of arrow B in the figure.

  Above the front of the carriage 11, a support column 17 is erected in the vertical direction with one end side rotatably supported on the upper surface of the carriage 11. The rotation direction of the support column 17 is a rotation direction around the central axis in the extending direction of the support column 17 as indicated by an arrow C in FIG.

  One end side of the X-ray tube support mechanism 18 is fixed to a side surface portion on the other end side of the support column 17 through a known slide mechanism (not shown). By adopting a configuration through this slide mechanism, the X-ray tube support mechanism 18 can be moved in the extending direction of the support column 17, that is, in the direction indicated by the arrow D (vertical direction in the figure). Further, the X-ray tube support mechanism 18 is configured to include a well-known expansion / contraction mechanism. However, in the first embodiment, as a part of a slide mechanism (not shown), a well-known counter balance mechanism is provided inside the column 17, and the X-ray tube apparatus 19 described later together with the X-ray tube support mechanism 18 by the counter balance mechanism. The operator can manually move up and down.

  At the other end of the X-ray tube support mechanism 18, an X-ray tube device 19 is arranged via an expansion / contraction mechanism. As a result, the X-ray tube device 19 is movable in the expansion / contraction direction of the expansion / contraction mechanism of the X-ray tube support mechanism 18, that is, in the direction indicated by the arrow E (the left-right direction in the figure). A well-known collimator 20 for limiting the X-ray beam irradiation range is attached to the X-ray beam irradiation window portion (the lower surface side of the X-ray tube device 19 in the figure) of the X-ray tube device 19. .

  An X-ray control device 21 including an X-ray high-voltage device and each drive control unit described in detail later are mounted above (above) the carriage 11, and a casing 15 is formed so as to surround these devices. ing. The X-ray control device 21 supplies tube voltage and tube current to the X-ray tube device 19 and performs on / off control of X-ray radiation.

  In the X-ray apparatus according to the first embodiment, the operation panel 22 is disposed on the upper surface of the housing 15. The operation panel 22 includes an operation device for setting X-ray imaging conditions (tube voltage, tube current, imaging time), an X-ray imaging push button switch, an X-ray irradiation field setting operation device, and the like. Further, a well-known lock mechanism 23 for fixing the position of the X-ray tube device 19 is provided on the upper surface of the housing 15 when the X-ray device of the first embodiment travels.

  Furthermore, a traveling handle 30 is disposed on a side surface portion of the housing 15, that is, on the rear side of the carriage 11. The traveling handle 30 according to the first embodiment includes a rod-shaped or column-shaped handle portion and a pair of handle support members that are respectively disposed at both ends of the handle portion and hold the handle portion horizontally with respect to the floor surface 24. Has been. At this time, the handle portion is fixed to one end of each handle support, and the other end is attached (connected) to the height adjusting mechanism 40, and the traveling handle 30 is shown in the figure by the height adjusting mechanism 40. It is moved in the direction of arrow F (vertical direction), and the height of the handle portion can be adjusted. In addition, a concave portion for supporting the handle portion is formed at the connection portion between the handle portion and the handle support tool, and a plurality of sensors are arranged in the concave portion. It is configured to detect a horizontal force that is a designated value of the moving direction in the front-rear direction and the moving speed applied to the handle portion 31 by the person.

<Block configuration>
Next, FIG. 2 is a block diagram for explaining the overall configuration of the mobile X-ray imaging apparatus according to the first embodiment of the present invention. Hereinafter, the mobile X-ray imaging apparatus according to the first embodiment will be described with reference to FIG. The block configuration and operation will be described. However, in FIG. 2, the configuration other than the height input device 48, the handle moving motor drive control circuit 49, and the motor 45 arranged on the operation panel 22 is the same as that of the conventional mobile X-ray imaging apparatus. . Therefore, in the following description, the height input device 48, the handle movement motor drive control circuit 49, and the motor 45 will be described in detail.

  As shown in FIG. 2, the mobile X-ray imaging apparatus according to the first embodiment is equipped with a battery 16 as a power source, and supplies power to each unit. The CPU 60 plays a central role in various controls of the mobile X-ray imaging apparatus. The CPU 60 controls input / output from the operation panel 22, the X-ray control device 21, the collimator 20, the travel handle mechanism 30, and the travel motor drive control. The circuit 14a and various control signals are output to each control circuit (control unit) such as a handle moving motor drive control circuit (first control means) 49. The X-ray control device 21 radiates from the X-ray tube device 19 based on an X-ray output control instruction output from the CPU 60 to which the tube voltage, tube current, and imaging time set by the operator on the operation panel 22 are input. Control the X-ray dose. The traveling motor drive control circuit 14 a is configured to control the rotational speeds of the motor (left) 14 b and the motor (right) 14 c based on the drive instruction from the CPU 60, and the drive instruction from the CPU 60 is applied to the handle portion 31. The CPU 60 detects the sensor output arranged on the traveling handle 30 that is output according to the operator's force. Further, the handle movement motor drive control circuit 49 controls the motor 45 in response to a control signal from the CPU 60 based on the height data of the operator input to the height input device (setting value input means) 48 of the operation panel 22 by the operator. It drives and adjusts the height of the handle part 31 so that it may suit the operator.

  In the mobile X-ray imaging apparatus of the first embodiment having such a block configuration, the battery 16 is charged when it is not in operation, and when the X-ray examination of the patient in the hospital room is performed, the apparatus is moved from the storage location to the patient room. The patient is moved to the sleeping bedside. During this movement, the height of the traveling handle 31 is adjusted by the operator. Further, the operator positions the X-ray tube device 19 to the imaging region of the patient by adjusting the position of the device by the movable carriage 11, turning the column 17, and extending and contracting the X-ray tube support mechanism 18, and then X After setting the radiographic conditions, an X-ray image is performed by placing an X-ray image receiving medium such as an X-ray film cassette or an X-ray flat panel detector (FPD) between the patient and the bed.

  That is, the CPU 60 controls the travel motor drive control circuit 14a according to the detection amount detected by the sensor disposed on the travel handle 30. Here, by driving the motor (left) 14b for driving the left drive wheel 12 and the motor (right) 14c for driving the right drive wheel 12 in accordance with the drive control of the travel motor drive control circuit 14a, The vehicle travels according to the operation on the travel handle 30. When X-ray imaging is performed after the apparatus main body is moved to a desired position on the bedside by traveling by operating the traveling handle 30, the operator manually moves the X-ray tube apparatus 19 to the desired position. Later, by setting a tube current value, a tube voltage, and an irradiation range, which are X-ray beam irradiation conditions, from the operation panel 22, the CPU 60 controls the collimator 20 to limit the irradiation range. Next, when the imaging start button is pressed, the CPU 60 controls the X-ray control device 21 to generate a high voltage from the battery 16 and supply it to the X-ray tube device 19 so that the X-ray beam is irradiated and the desired position is reached. X-ray imaging is performed.

<Driving handle height adjustment mechanism>
FIG. 3 is a diagram for explaining a detailed configuration of a handle height adjusting mechanism in the mobile X-ray imaging apparatus according to the first embodiment of the present invention. Hereinafter, the handle according to the first embodiment will be described with reference to FIGS. The height adjustment mechanism will be described.

  As shown in FIG. 1, the handle height adjusting mechanism 40 according to the first embodiment is disposed on the rear side of the carriage 11, which is a position close to the traveling handle 30, that is, on the side where the operator moves the apparatus main body. The housing 15 is configured to be covered. Therefore, in the height adjustment of the traveling handle 30 by the handle height adjustment mechanism of the first embodiment, the handle portion 31 and the handle support 32 that are arranged outside the housing 15 are moved up and down by the operation of the handle adjustment mechanism 40. It is configured to move. In adjusting the height of the traveling handle 30 at this time, the height of the handle portion 31 is adjusted to the horizontal height of the forearm of the operator who moves the mobile X-ray imaging apparatus.

  As shown in FIG. 3, the handle height adjusting mechanism 40 according to the first embodiment is supported in a vertical posture so as to be rotatable by two bearings 41 fixed to the casing 15 of the carriage 11 and these bearings 41. A feed screw 42, a nut member 43 combined with the feed screw 42, a gear 44 fixed to one end of the feed screw 42, a known motor 45 with a reduction gear fixed to the housing 15, and the motor 45 A gear 46 fixed to the output shaft and two limit switches 47 which are turned on / off by a cam portion (not shown) formed on the nut member 43 are provided. The limit switch 47 is a switch that generates a signal for stopping the motor 45 at the upper limit and the lower limit of the movement of the nut member 43. The handle height adjustment mechanism 40 configured as described above is configured such that the motor 45 is driven and controlled according to the height value of the operator input by the operator to the height input device 49 of the operation panel 22, thereby the handle portion 31. The height from the floor is variably set within the range of the distance H in the height direction.

  As described above, the height adjustment mechanism 40 according to the first embodiment includes the feed screw 42 longer than the distance H that is the height adjustment range of the traveling handle 30 and the rotation of the feed screw 42 when fitted to the feed screw 42. A feed screw mechanism including a nut member 43 that moves in the axial direction according to the operation is used. In the mobile X-ray imaging apparatus, the vertical direction with respect to the floor surface, which is the height direction of the traveling handle 30, is the axial direction of the feed screw 42, but the present invention is not limited to this. For example, the support position on the upper end side of the feed screw 42, that is, the mounting position of the bearing 41 on the upper end side is arranged at a position shifted in the right direction in FIG. 3, and the axial direction of the feed screw 42 is on the handle portion side. By inclining, the distance between the handle portion 31 and the housing 15 can be changed in conjunction with the height of the traveling handle 30. In general, when the height of the operator is high, the step length when walking is generally large, and the height of the operator is increased by disposing the feed screw 42 as described above. When the handle 30 is set high, the distance between the handle portion 31 and the housing 15 can be increased, and a special effect can be obtained that can be applied to the step length of a tall operator. .

<Heading handle height adjustment operation>
FIG. 4 is a flowchart for explaining the height adjustment operation of the traveling handle in the mobile X-ray imaging apparatus according to the first embodiment of the present invention. Hereinafter, the traveling handle according to the first embodiment will be described with reference to FIG. The height adjustment operation will be described.

  When moving the mobile X-ray imaging apparatus to the hospital room, the operator turns on the power switch of the apparatus and confirms whether the height of the handle portion 31 is suitable for him / her. When the height of the handle portion 31 is not suitable for itself, the height of the handle portion 31 is adjusted in the following procedure. That is, the start of the flow shown in FIG. 4 is the height determination of the handle portion 31 by the operator.

  Here, when the operator determines that the height of the handle portion 31 is not suitable for his / her height, the operator first inputs the value of his / her height from the height input device 48 provided on the operation panel 22. (Step 401).

  The operator's height data input to the operation panel 22 is output to the CPU 60. When the CPU 60 receives the height data of the operator, the CPU 60 obtains the height of the handle portion 31 suitable for the operator. (Step 402). However, the height of the handle portion 31 suitable for the operator is the height of the elbow of the operator, and preferably the height of the elbow when the operator is walking. It should be noted that the height of the handle suitable for the operator may be determined from the experimental results obtained by conducting an experimental movement of the apparatus for a plurality of persons for each height. In this case, the height of the handle 31 determined for each height is stored in advance in the memory of the CPU 60 as table data, and the CPU 60 searches the table data based on the operator's height input, and the input height This can be realized by obtaining the height of the handle portion 31 corresponding to the above. The height data stored as table data is divided into a plurality of preset step values, for example, the height is 155 cm or less, 160 cm, 165 cm, 170 cm, or 175 cm or more, and the input height data of the operator is displayed. It is good also as a structure which approximates to the nearest thing of those values, and adjusts the height of the steering wheel with the value. In this case, the motor drive control described later can also be controlled stepwise.

  When data relating to the handle height is output from the CPU 60 to the handle moving motor drive control circuit 49, the height of the handle portion 31 is adjusted (step 403). In the height adjustment of the handle portion 31 in step 403, first, the current height data of the handle portion 31 held by the handle moving motor drive control circuit 49 and the height data input from the CPU 60 are compared. The Next, based on the comparison result, the handle moving motor drive control circuit 49 obtains the rotation direction and the rotation speed of the motor 45, and the motor 45 is driven according to the obtained rotation direction and rotation speed. By driving the motor 45, the feed screw 42 rotates through the gear 46 and the gear 44, and the nut member 43 fitted to the feed screw 42 is moved in the direction of arrow F. As a result, the height of the handle portion 31 is changed together with the handle support 32 coupled to the nut member 43, that is, the height of the traveling handle 30 is adjusted.

  Then, the operator determines whether or not fine adjustment is necessary for the height of the handle portion 31 whose height has been adjusted (step 404). This determination step 404 is provided to compensate for individual differences in the operator's physique.

  If it is determined in step 404 that the handle height fine adjustment is not “necessary” by the operator, the handle height adjustment flow ends. On the other hand, if it is determined in step 404 that the handle height fine adjustment is “necessary”, the process proceeds to the next step 405 handle height fine adjustment.

  The fine adjustment of the handle height in step 405 is performed by the operator operating the “+” and “−” fine adjustment switches provided on the panel surface of the operation panel 22 along with the height input device 49. The operation results of the fine adjustment switches “+” and “−” are output to the CPU 60, and when either “+” or “−” is operated once, the height of the handle becomes a predetermined height, for example, 1 cm. The drive control of the motor 45 is performed so as to change. Therefore, the operator can transport the mobile X-ray imaging apparatus to the hospital room after operating the fine adjustment switch to adjust the handle to a height at which it can be easily operated. Note that a fine adjustment mechanism for the handle height in step 405 may be provided as necessary.

  As described above, in the mobile X-ray imaging apparatus according to the first embodiment of the present invention, the traveling handle 30 moves linearly in the vertical direction when the height of the handle is adjusted. Since the distance between the body and the handle does not change, the handle does not become difficult to grip, and the direction of the handle does not change even if the height of the handle is changed. Furthermore, by providing a handle height fine adjustment mechanism as necessary, the handle height can be finely adjusted according to height, so the handle position can be set to the height that the operator feels optimal. The operability when the height of the operator is different can be improved.

<Embodiment 2>
FIG. 5 is a diagram for explaining the detailed configuration of the handle height adjustment mechanism and the operation panel surface adjustment mechanism in the mobile X-ray imaging apparatus according to the first embodiment of the present invention. A handle height adjusting mechanism and an operation panel surface adjusting mechanism according to the second embodiment will be described. However, the mobile X-ray apparatus according to the second embodiment is the same as the mobile X-ray apparatus according to the first embodiment except for the height adjustment mechanism of the traveling handle and the adjustment mechanism of the operation panel surface. Become. Therefore, in the following description, the traveling handle height adjustment mechanism and the operation panel surface adjustment mechanism of the second embodiment will be described in detail.

  As shown in FIG. 5, in the mobile X-ray imaging apparatus of the second embodiment, the operation panel 22 and the height adjustment mechanism 40 are fixed to the side frame 53, and the side frame 53 operates around the fulcrum G. Since it is configured to rotate (tilt and tilt), the arrangement side of the height adjustment mechanism 40 moves up and down in the direction of the arrow J in the drawing as the side frame 53 operates. In addition, since the traveling handle 30 is arranged in the height adjustment mechanism 40 as described in the first embodiment, in the second embodiment, a diagram accompanying the operation (tilting operation) of the side frame 53 is shown. The traveling handle 30 moves in the vertical (vertical) direction in the tilt direction indicated by the arrow J in the middle, and the traveling handle 30 alone moves in the direction indicated by the arrow J by the height adjusting mechanism 40. The height of the handle 30 can be adjusted.

  In the second embodiment, since the operation panel 22 is also arranged on the side frame 53, the side frame 53 is tilted and the operation panel 22 is also moved up and down. In this case, when the side frame 53 is tilted and moved so as to lower the side on which the traveling handle 30 is disposed, the panel surface (operation panel surface) of the operation panel 22 is inclined toward the operator. On the other hand, when the side frame 53 is tilted so as to raise the arrangement side of the traveling handle 30, the panel surface (operation panel surface) of the operation panel 22 is on the side opposite to the operator, that is, on the front side of the apparatus. It will be inclined. For this reason, the second embodiment includes a mechanism (operation panel surface height adjustment mechanism) that inclines the operation panel 22 toward the operator side in conjunction with the inclination of the side frame 53. The mechanism for inclining the operation panel 22 is arranged on a well-known hinge mechanism that supports one side (lower end side) of the operation panel 22 on the operator side, and on the back surface of the operation panel 22 on the side far from the operator. It is comprised from the simple bar (push-up part) 50 from which the amount of protrusions fluctuates in conjunction with the inclination angle.

  Next, FIG. 6 is a block diagram for explaining the overall configuration of the mobile X-ray imaging apparatus according to the second embodiment of the present invention, and the operation of the mobile X-ray imaging apparatus according to the second embodiment will be described. However, as apparent from the block diagram shown in FIG. 6, the configuration other than the handle and operation panel surface moving motor drive control circuit 51 and the motor 52 is the same as that of the first embodiment. Accordingly, in the following description, the handle and operation panel surface moving motor drive control circuit 51 and the motor 52 will be described in detail.

  Regarding the height adjustment of the traveling handle 30 and the operation panel 22, first, when using the mobile X-ray imaging apparatus, the operator confirms whether the height of the handle portion 31 or the operation panel surface 22 is suitable for himself. Here, when the height of the handle portion 31 or the operation panel surface 22 is not suitable for the user, the height value input by inputting the height value from the height input device 48 provided on the operation panel 22 is input. Data is output to the CPU 60.

  The CPU 60 that has received the height data obtains the height of the traveling handle 30 and the operation panel surface suitable for the height data. In the calculation at this time, as in the first embodiment, the CPU 60 searches the height of the steering wheel 30 and the operation panel corresponding to the height data input from the table data stored in advance, and the obtained data is This is output to the handle and operation panel surface moving motor drive control circuit (second control means) 51. Based on the data input from the CPU 60, the handle and operation panel surface moving motor drive control circuit 51 controls the motor 52, moves the side frame 53 around the fulcrum G, and operates the traveling handle 30 and the operation. Adjust the height of the panel surface. At this time, when the handle and operation panel surface moving motor drive control circuit 51 determines that only the height of the traveling handle 30 needs to be adjusted, the current handle height held by the handle moving motor drive control circuit 49 is determined. The amount of movement is calculated from the height of the traveling handle 30 input from the CPU 60. Next, the calculated movement amount is output to the handle movement motor drive control circuit 49 via the CPU 60, so that the handle movement motor drive control circuit 49 obtains the rotation direction and the number of rotations of the motor 45. Then, the driving handle 30 is moved to a desired height by driving the motor 45 in accordance with the rotation direction and the number of rotations obtained by the steering wheel moving motor drive control circuit 49.

  Further, during traveling, as in the first embodiment, the CPU 60 outputs control data to the traveling motor drive control circuit 14a in accordance with the detection amount detected by the sensor disposed on the traveling handle 30. The travel motor drive control circuit 14a drives the motor (left) 14b for driving the left drive wheel 12 and the motor (right) 14c for driving the right drive wheel 12 based on the control data, thereby driving the travel motor. Traveling according to the operation on the handle 30 is performed.

  Even during X-ray imaging, as in the first embodiment, after the operator manually moves the X-ray tube device 19 to a desired position, the irradiation conditions of the X-ray beam are set from the operation panel 22. The CPU 60 controls the collimator 20 to limit the irradiation range. Next, when the imaging start button is pressed, the CPU 60 controls the X-ray control device 21 to generate a high voltage from the battery 16 and supply it to the X-ray tube device 19 so that the X-ray beam is irradiated and the desired position is reached. X-ray imaging is performed.

  As described above, in the mobile X-ray imaging apparatus according to the second embodiment, the traveling handle including the height adjustment mechanism and the operation panel are provided on the side frame having the fulcrum G in the end region far from the operator. Since the configuration is such that the height of the steering wheel and the operation panel is adjusted by changing the inclination angle of the side frame based on the height data of the operator, in addition to the effects of the first embodiment described above. Thus, the operability when the height of the operator is different from the average height can be further improved.

  In the mobile X-ray imaging apparatuses according to the first and second embodiments, the height adjustment mechanism of the traveling handle is configured to use the feed screw mechanism, but is not limited thereto. For example, instead of the feed screw mechanism, the drive mechanism is composed of a linear motion bearing mechanism that guides the traveling handle mechanism, and a swingable link provided between the swing arm provided on the output shaft of the motor and the handle support. It may be configured to move the traveling handle mechanism by rotating the motor. Furthermore, with this configuration, it becomes easy to set the height of the traveling handle to a plurality of steps.

  As mentioned above, the invention made by the present inventor has been specifically described based on the embodiment of the invention. However, the invention is not limited to the embodiment of the invention, and various modifications can be made without departing from the scope of the invention. It can be changed.

DESCRIPTION OF SYMBOLS 11 ... Carriage, 12 ... Drive wheel, 13 ... Front wheel, 14 ... Travel drive mechanism 14a ... Travel motor drive control circuit, 14b ... Motor (left), 14c ... Motor (right)
DESCRIPTION OF SYMBOLS 15 ... Case, 16 ... Battery, 17 ... Support | pillar, 18 ... X-ray tube support mechanism, 19 ... X-ray tube apparatus 20 ... Collimator, 21 ... X-ray control apparatus, 22 ... Operation panel, 23 ... Lock mechanism 24 ... Floor Surface, 30 ... Traveling handle mechanism, 31 ... Handle portion, 32 ... Handle support 40 ... Height adjusting mechanism, 41 ... Bearing, 42 ... Feed screw, 43 ... Nut member 44, 46 ... Gear, 45 ... Motor, 47 ... limit switch, 48 ... height input device 49 ... motor drive control circuit for moving the handle, 50 ... simple bar (push-up part)
51 ... Motor drive control circuit for moving handle and operation panel surface, 52 ... Motor 53 ... Side frame, 60 ... CPU

Claims (3)

An X-ray imaging unit having an X-ray generation unit that irradiates a subject with X-rays, a carriage on which the X-ray imaging unit is mounted, and a traveling handle that is installed on a side surface and a rear part of the carriage to control the traveling of the carriage. A mobile X-ray imaging apparatus comprising:
A handle height adjustment mechanism for changing the height of the traveling handle from the floor, an operation panel for setting the X-ray irradiation conditions, the handle height adjustment mechanism, and the operation panel are supported; An operation panel surface adjustment mechanism having a frame that moves in the vertical direction while interlocking the handle height adjustment mechanism and the operation panel by rotating around the one side, and changing the height from the floor surface, A setting value input means for setting the traveling handle, or the height of the traveling handle and the operation panel, the handle height adjusting mechanism based on the setting value set by the setting value input means, and / or Control means for moving the travel handle or the travel handle and the height of the operation panel using the operation panel surface adjustment mechanism;
A mobile X-ray imaging apparatus comprising: A mechanism for adjusting an inclination angle of a display surface of the operation panel installed on the upper surface with respect to the floor surface based on an inclination angle of the upper surface of the frame with respect to the floor surface caused by the rotational movement of the frame; The mobile X-ray imaging apparatus according to claim 1. The set value input from the set value input means is height data, and based on the height data input from the set value input means, a height calculation that calculates the height of the traveling handle and the operation panel The mobile X-ray imaging apparatus according to claim 1, further comprising means.

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