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Mobile radiation generator

A technology for generating devices and radiation, which is used in the fields of radiological diagnosis instruments, medical science, diagnosis, etc.

Pending Publication Date: 2018-04-20
FUJIFILM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the rotation lock operation of Non-Patent Document 1, two-handed operation is required, so there is still room for improvement in the operability of the height adjustment of the radiation irradiation section.

Method used

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Experimental program
Comparison scheme
Effect test

no. 1 Embodiment approach

[0067] exist figure 1 Among them, the X-ray imaging system 2 is a radiation imaging system using X-rays as radiation, and includes a cart 11 and an electronic cassette 12 . The electronic cassette 12 is a portable X-ray image detector that detects X-rays transmitted through a subject (patient) H and outputs an X-ray image. The electronic cassette 12 is communicably connected to an imaging control device (not shown) that controls the electronic cassette 12 and a console (not shown) responsible for saving and displaying X-ray images by wireless or wired communication. The electronic cassette 12 is placed on the bed 13 in order to photograph the subject H, for example. According to the imaging location, the electronic cassette 12 is wrapped around the subject H and the like, and positioning corresponding to the imaging location is performed.

[0068] The cart 11 is a cart-type mobile radiation generator, and generates X-rays for X-ray photography. The trolley 11 has a movable ...

no. 2 Embodiment approach

[0156] Figure 18 ~ Figure 23 The illustrated second embodiment is an embodiment in which a reservoir for retaining lubricating oil is provided on the friction surfaces of the friction plates 46 and 47 . The lubricating oil filled in the friction surfaces of the friction plates 46 and 47 deteriorates over time as the friction surfaces repeatedly slide against each other. By providing the reservoir, new lubricating oil can be supplied to the friction surface.

[0157] exist Figure 18 and Figure 19 Among them, a storage hole 74 is formed on the friction surface 73 of the friction plate 47 as a storage portion. On the other hand, if Figure 20 As shown, a storage hole 72 is also formed as a storage portion on the friction surface 71 of the friction plate 46 . The storage holes 72 and 74 are circular in shape.

[0158] A plurality of storage holes 72 and 74 are arranged on each of the friction surfaces 71 and 73 so as to be dispersed in the circumferential direction thereo...

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Abstract

The invention provides a mobile radiation generator which is free of structural complication and increasing of cost, and allows height adjustment on an irradiation section just by one hand. A mobile radiation generator includes an arm part (17) on which an irradiation section (15) is mounted. The height of the irradiation section is changed in a case in which the arm part is rotated. A spring (37)generates negative rotational moment in a negative direction where the irradiation section is displaced upward against positive rotational moment (N1) that acts on the arm part in a positive direction due to own weight of the irradiation section and the like, while a negative rotational moment (N2) is generated in the negative direction of upward displacement of the irradiation section (15). A friction mechanism is built in a pillar (18B). In a case in which the magnitude of the positive rotational moment and the magnitude of the negative rotational moment are different from each other, the friction mechanism generates a frictional force [delta]F acting in a direction opposite to a direction where the arm part is to be rotated due to a difference between the positive rotational moment andthe negative rotational moment and cancelling the difference.

Description

technical field [0001] The present invention relates to a mobile radiation generating device used in radiography. Background technique [0002] In the medical field, a mobile radiation generating device used in radiography is known (for example, refer to Non-Patent Document 1). Among the mobile radiation generators, there is a cart-type mobile radiation generator in which a radiation irradiation unit, an arm unit, and a support for supporting the arm unit are mounted on a movable trolley unit. Here, the trolley-type mobile radiation generator having a trolley is simply referred to as a trolley. Since the trolley can move the trolley, for example, it is used for radiography to inspect a ward with a patient in a ward building. [0003] The free end of the arm is attached with a radiation irradiation unit, and the proximal end is attached to a support fixed to the trolley. The arm is rotatably supported by the pillar, and when the arm rotates about the base end side as a ful...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B6/00
CPCA61B6/44A61B6/4405A61B6/447
Inventor 江口晃一
Owner FUJIFILM CORP