JPH0626805U - Mobile X-ray equipment - Google Patents

Abstract

(57) [Summary] [Purpose] For positioning the X-ray tube device by the operator when the mobile X-ray device is placed in a narrow space such as between beds in a patient room for X-ray photography. Eliminates the need to go back and forth between the front and back of the device. [Structure] Gears 13 and 15 are provided in mesh with a connecting portion between a swingable column 6 and an am 7 standing upright in front of a moving carriage 2, and a lever 14 is fixed to a fulcrum shaft 12 of the gear 13. The gear 15 is fixed to the arm 7 via the fulcrum shaft 11,
When a rotational force is applied to the gear 13 from the lever 14, the gear 15
The arm 7 is rotated via the. A force for reducing the operating force is applied to the lever 14 by a compression spring. Further, the X-ray tube device unit 8 is connected to the gear 15 by the link 17,
Always point in the vertical direction. [Effect] From the rear of the moving carriage, the operator can use the lever to move the X
The line device can be positioned.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a mobile X-ray apparatus, and more particularly to a mobile X-ray apparatus equipped with an X-ray tube support that facilitates an X-ray imaging operation in a hospital room.

[0002]

[Prior art]

 The conventional apparatus to which the present invention is directed is provided with an X-ray tube supporter (hereinafter referred to as an arm) that bends and extends in front of a moving carriage. It was possible to position the tube and hold the X-ray tube in the storage position while the equipment was running.

[0003]

[Problems to be solved by the device]

 In the above conventional device, when moving the device to the patient room, the operator performs a traveling operation at the back of the moving carriage, and when he arrives in the patient room, goes to the front of the carriage and extends the arm held at a predetermined position. Therefore, it was necessary to position the X-ray tube. That is, the X-ray tube cannot be positioned unless the operator goes to the front of the carriage. With such a device, an X-ray tube can be used when X-ray imaging cannot be performed unless the device is entered into a narrow space such as between beds in the patient room or between the bed and the wall of the patient room. It was necessary to perform the positioning and the forward and backward movement of the device alternately or repeatedly. Even when the device is moved back and forth, care must be taken not to hit the device against the bed or wall, and care must be taken not to hit the extended arm against the wall or fluorescent lamp. However, the operator was required a lot of time and labor including mental strength.

In view of the above problems, it is an object of the present invention to provide a mobile X-ray apparatus that can quickly and easily perform X-ray imaging positioning in a hospital room.

[0005]

In order to achieve the above object, the present invention has an X-ray high-voltage device and an X-ray control device mounted on the rear of a moving carriage, and pivots a column in front of the moving carriage. In a movable X-ray apparatus, which is erected as much as possible and is provided with an arm for supporting the X-ray tube device rotatably along a vertical surface on this support, provided on a fulcrum shaft connecting the arm and the support. A first rotating body, a second rotating body provided on the support post and engaging with the first rotating body, and a driving force extending to the rear of the movable carriage and applied to the second rotating body. It is characterized in that an arm rotating device including a lever for giving and an operation force reducing mechanism for giving a rotating force for pushing the arm upward to the second rotating body is provided.

[0006]

[Action]

 Since the lever extends toward the rear of the moving carriage, the operator can operate the lever from the rear of the moving carriage facing the X-ray controller. When the operator operates the lever, the operation force reducing mechanism applies a rotational force to the second rotating body so as to push the arm upward. Therefore, the lever can be operated with a small force. When the lever is operated, the rotating force is transmitted from the second rotating body to the first rotating body, the rotating force of the first rotating body is transmitted to the arm, and the arm rotates upward, whereby X The wire tube device is moved to a predetermined position. Therefore, by rotating the column with a lever, the X-ray tube device can be positioned at the imaging site of the subject on the bed. Therefore, the operator does not need to go back and forth behind the moving carriage, that is, between narrow beds.

[0007]

【Example】

 An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a perspective view showing the external appearance of a mobile X-ray apparatus according to an embodiment of the present invention. In the figure, 1 is an X-ray device main body that houses an X-ray high-voltage device and an X-ray control device, 2 is a mobile trolley, which has a main wheel (driving wheel) 3 and a free wheel 4, and includes an electric motor (not shown). One that can travel by driving the main wheels 3 by a drive mechanism, 5 is a bearing portion, and 6 is a pillar that is rotatably supported by the bearing portion 5. An arm 7 is rotatable about a fulcrum provided at the upper end of the column 6. An X-ray tube device unit 8 is composed of an X-ray tube device 8a, a diaphragm device 8b, and a support metal member 8c. The X-ray tube device unit 8 is rotatably connected to the end of the arm 7 and is connected to the arm 7 The X-ray emission direction is always oriented in the vertical direction even when is rotated up and down.

Next, the swing mechanism of the arm 7 which is a feature of the present invention will be described with reference to FIG. A fulcrum shaft 11 is provided at the upper end of the column 6, and the fulcrum shaft 11 is rotatably connected to the column 6 and fixed to the arm 7 with a key. Therefore, when a rotational force is applied to the fulcrum shaft 11, the arm 7 rotates. Another fulcrum shaft 12 is rotatably provided at the upper end of the column 6 with respect to the column 6. A gear 13 and a lever 14 are fixed to the fulcrum shaft 12. Further, a gear 15 is fixed to the fulcrum shaft 11 and meshes with the gear 13. As a result, when the rotational force of the fulcrum shaft 12 is applied to the lever 14, the fulcrum shaft 11 is rotated via the gear 15 and the gear 13, and the arm 7 is rotated. A pin 16 is fixed to the gear 15 at a position separated from the shaft center by a predetermined distance, and a link 17 is rotatably connected to the pin 16. The other end of the link 17 is rotatably connected to the support fitting 8c of the X-ray tube device section 8 and also by a pin 18. The link 17 has a function of keeping the center of the X-ray vertical emitted from the X-ray tube device 8a always vertical even if the arm 7 rotates. Therefore, when the gear 15 rotates, the length of the link 17 and the mounting positions of the pins 16 and 18 are set so that the rotation angle of the support fitting 8c is rotated by an equal angle with the sign reversed with respect to the rotation angle. Has been done.

Next, a mechanism for reducing the turning force of the arm 7, that is, the operation force for the operator to rotate the lever 14 upward will be described. Reference numeral 20 is a cylinder, and a compression spring 21 is inserted inside the cylinder 20. One end of the compression spring 21 is held by the bottom surface of the cylinder 20, and the other end thereof abuts on a piston shaft 23 rotatably connected to the lever 14 by a pin 22. The bottom surface of the cylinder 20 that houses the compression spring 21 is rotatably connected to the support column 6 by a pin 24. The strength of the compression spring 21 is such that the arm 7 is balanced at the normal X-ray imaging position shown by the chain double-dashed line in FIG. 2, and below the predetermined range from the position of the chain double-dashed line the cylinder 20 is These relationships may be set so that the arm 7 can be stopped by the frictional force of the piston shaft 23. If it is difficult to apply the frictional force, an electromagnetic brake may be provided on the fulcrum shaft 11. Further, in order to prevent the operator from pinching his / her finger between the lever 14 and the apparatus main body 1 when the lever 14 is pulled down to the lowest position, a stopper for setting the lowest end position of the arm 7 is provided. It is good to install it on the pillar 6.

Next, the operation will be described together with the operation method of the present apparatus. The mobile X-ray device is stored in the storage area in the hospital as shown in FIG. This device is moved into the hospital room, which is the shooting location, by the operation handle 9 of the device body 1. Then, the device is carried between the beds. Here, the operator pushes the lever 7 upward. At this time, the force of the compression spring 21 reduces the operating force of the operator. Then, the X-ray tube device 8a is aligned with the imaging region of the subject by the vertical movement of the lever 7 and the turning movement of the support 6. Since the X-ray tube device 8a is always oriented in the vertical direction, it is possible to align the position by rotating the lever 7 and the column 6.

When the X-ray imaging is completed, the X-ray tube device unit 8 is housed in a predetermined position by a reverse operation to the above, and the device is moved to the storage place again.

Although one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment and can be modified without departing from the scope of the invention. For example, if it is unavoidable that the operating force increases in the middle of lever movement only with a compression spring that reduces the lever operating force of the operator, a motor assist mechanism in which a small motor with a reduction gear is connected to the fulcrum shaft 11 is used. In addition, an on / off switch of the motor may be provided on the lever 7. In this case, when the lever 7 is lowered, the speed reducer of the motor serves as a brake, so that a preferable effect on safety can be obtained.

[0013]

[Effect of device]

 As described above, according to the present invention, the X-ray tube apparatus can be operated while the operator is not moving back and forth between the beds, and the operator can operate the X-ray tube device while being behind the moving carriage. The operation can be performed quickly and easily as compared with the device.

[Brief description of drawings]

FIG. 1 is a perspective view showing the external appearance of an embodiment of a mobile X-ray apparatus of the present invention.

FIG. 2 is a side view of a movable X-ray device, a part of which is shown in section for explaining an example of a detailed configuration of an arm rotating device.

[Explanation of symbols]

 6 Supports 7 Arms 13 Gears 14 Levers 15 Gears 17 Links 21 Compression Springs

Claims (1)

[Scope of utility model registration request] 1. An X-ray high-voltage device and an X-ray control device are mounted on the rear of a moving carriage, and a supporting column is erected vertically in front of the moving supporting vehicle, and an X-ray tube device is supported on the supporting column. In a movable X-ray apparatus in which an arm to be turned is provided so as to be rotatable along a vertical surface, a first rotating body provided to a fulcrum shaft connecting the arm and a support, and the first support provided to the support. A second rotating body that engages with the one rotating body, a lever that extends rearward of the moving carriage and applies a driving force to the second rotating body, and the arm is upwardly attached to the second rotating body. A mobile X-ray apparatus comprising an arm rotating device having an operation force reducing mechanism that applies a rotating force for pushing up.