Lifting device for supporting C-shaped or U-shaped arm and medical X-ray machine thereof

Abstract

The invention provides a lifting device for supporting a C-shaped or U-shaped arm of an X-ray machine. The lifting device comprises an outer shell, an inner shell and a gas spring arranged in the inner shell, wherein the inner shell is arranged inside the outer shell and can slide up and down inside the outer shell, and the C-shaped or U-shaped arm is connected to the inner shell; one end of the gas spring is connected to the top of the inner shell, and the other end of the gas spring penetrates through the bottom of the inner shell and is connected to the bottom of the outer shell; and the gas spring stretches and retracts to drive the inner shell to slide up and down. An electromagnetic lock is arranged inside the inner shell, comprises a sliding sheet, and is used for locking or releasing the inner shell through the stretching and retracting of the sliding sheet. According to the invention, by means of the low-cost gas spring and the matched electromagnetic lock and by utilizing the characteristic of the gas spring, the C-shaped or U-shaped arm can reach any position just by slightly pushing or pulling the inner shell, and thus, the operation of a doctor is facilitated; meanwhile, the gas spring can be used for effectively balancing the weight of the C-shaped or U-shaped arm, no noises are generated in a work process, so that the safety and the stability of the lifting of the C-shaped or U-shaped arm are effectively enhanced. The lifting device provided by the invention also has the advantages of simple structure and low cost.

Description

technical field [0001] The invention relates to the technical field of medical X-ray systems, in particular to a lifting device supporting a C-shaped arm or a U-shaped arm in an X-ray machine and an X-ray machine using the lifting device. Background technique [0002] The up and down movement of the C-arm or U-arm of the existing movable X-ray machine usually uses a motor to push the push rod to make the inner shell slide up and down in the outer shell, as disclosed in US Patent No. 5,544,217. However, in the prior art, due to the use of motor drive, the operator needs to press the button all the time to lift during the operation. This technology prevents doctors from quickly locating and is inconvenient for doctors to operate; at the same time, the prior art has the disadvantages of high noise and high configuration costs. Contents of the invention [0003] The object of the present invention is to propose a lifting device with a C-shaped or U-shaped arm supporting an X-...

AI Technical Summary

Problems solved by technology

However, due to the use of motor drive in the prior art, it is necessary for the surgeon to press the button all the time during the operation to perform lifting.

This technology makes it impossible for doctors to locate quickly and is not convenient for doctors to operate; at the same time, the existing technology has the disadvantages of high noise and high configuration cost

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