Movable computer tomography device

Abstract

The invention discloses a mobile computed tomography device, comprising: a support base; a scanning system, which includes a turntable, a ball tube and a detector fixed at the rear of the turntable, a slip ring fixed at the front of the turntable and The driven gear, the driving gear cooperating with the driven gear, the rotating motor that drives the driving gear to rotate, the front part of the turntable is also provided with a bearing; the linear drive, one end of which is hinged on the support seat, The other end of the linear driver is hinged on the inner ring of the bearing; the connecting shaft has a corner block fixed at one end, the corner block is fixed on the inner ring of the bearing, and the other end of the connecting shaft It is pivotally connected to the side of the supporting base, and the other end of the connecting shaft is connected with an encoder. The mobile computed tomography device provided by the invention is safe and reliable, has high transmission precision, and can realize the scanning system to work at a certain inclination angle.

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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