Movable computer tomography device

Abstract

The invention discloses a movable computer tomography device which comprises a supporting base, a scanning system, a linear driver and a connection shaft. The scanning system comprises a rotary plate, a bulb tube, a detector, a sliding ring, a driven gear, a driving gear and a rotary motor, the bulb tube and the detector are fixed to the rear portion of the rotary plate, the sliding ring and the driven gear are fixed to the front portion of the rotary plate, the driving gear is in transmission with the driven gear in a matched mode, the rotary motor drives the driving gear to rotate, and a bearing is further arranged on the front portion of the rotary plate; one end of the linear driver is hinged to the supporting base, and the other end of the linear driver is hinged to the inner ring of the bearing; one end of the connection shaft is fixedly connected with an angle block, the angle block is fixedly connected to the inner ring of the bearing, the other end of the connection shaft is in pivot connection with the side of the supporting base, and the other end of the connection shaft is connected with an encoder. The movable computer tomography device is safe, reliable and high in transmission precision, and the scanning system can work in a certain dip angle state.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a mobile computed tomography imaging device. Background technique [0002] The rotation of the scanning system of the existing computed tomography device is mostly driven by a synchronous belt. The disadvantage is that the pitch of the teeth of the synchronous belt will change during the manufacturing and force transmission process, resulting in unequal pitches when the synchronous belt meshes with the pulley. Pitch error occurs, and excessive pitch error will make the transmission unstable, resulting in vibration and gear climbing phenomenon; at the same time, the axis position of the scanning system of the existing mobile computer tomography device is fixed, that is, during the scanning process, the axis of the scanning system only It can be kept parallel to the long axis of the scanned object. However, when inspecting the cervical spine and lumbar spine, it is often ne...

AI Technical Summary

Problems solved by technology

[0002] The rotation of the scanning system of the existing computed tomography device is mostly driven by a synchronous belt. The disadvantage is that the pitch of the teeth of the synchronous belt will change during the manufacturing and force transmission process, resulting in unequal pitches when the synchronous belt meshes with the pulley. Pitch error occurs, and excessive pitch error will make the transmission unstable, resulting in vibration and gear climbing phenomenon; at the same time, the axis position of the scanning system of the existing mobile computer tomography device is fixed, that is, during the scanning process, the axis of the scanning system only It can be kept parallel to the long axis of the scanned object. However, when inspecting the cervical spine and lumbar spine, it is often necessary to adjust the tilt angle of the scanning system according to the physiological curvature of the cervical spine and lumbar spine, so that the planned scanning level can scan the cervical spine that needs to be checked more accurately. and lumbar level

Therefore, the existing mobile computed tomography device with a fixed axial position of the scanning system limits the imaging accuracy of the cervical spine and lumbar spine.

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