X-ray collimation and automatic filter disc replacement device

By designing an automatic filter replacement device, the filter replacement is automatically achieved by using a lead screw motor to drive the filter mounting plate. This solves the problems of cumbersome filter replacement and contamination in the existing technology and improves the imaging effect.

CN224288229UActive Publication Date: 2026-05-26JINAN INST OF NUCLEAR TECH OF CHINA +1
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Patent Information

Application Number
CN202521569023.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-25
Publication Date
2026-05-26
Estimated Expiration
2035-07-25

AI Technical Summary

Technical Problem

In existing X-ray devices, filter replacement requires manual operation, which is cumbersome and prone to contamination, affecting imaging results.

Method used

An X-ray collimation and automatic filter replacement device was designed, including a front collimation unit, a guide rail mounting plate, a lead screw motor, and a filter mounting plate. The filter is automatically replaced by driving the filter mounting plate along a miniature guide rail via the lead screw motor, and the zero position is determined by a photoelectric sensor plate.

Benefits of technology

It enables automatic filter replacement, reduces the tediousness of manual operation, avoids filter contamination, and improves imaging results.

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Abstract

The utility model discloses an X-ray collimation and automatic filter disc replacement device, which is characterized by comprising a front collimation unit, a guide rail mounting plate, a lead screw motor, a filter disc mounting plate and a miniature guide rail, the front end of the front collimation unit is used for being connected with a ray emission port of an X-ray source, and is used for collimating input X-rays and then outputting the X-rays; the rear end of the front collimation unit is connected with the front end of the guide rail mounting plate; a strip-shaped gap is formed in the guide rail mounting plate and is used for outputting the X-rays collimated by the front collimation unit; micro guide rails are respectively arranged on two sides of the rear end of the guide rail mounting plate; a filter disc mounting plate is mounted on the micro guide rail and is used for providing linear guidance for the movement of the filter disc mounting plate; a plurality of side-by-side filter discs are arranged on the filter disc mounting plate and are respectively used for filtering the X-rays output by the strip-shaped gaps; a lead screw motor is mounted on one side of the guide rail mounting plate, is connected with the filter disc mounting plate and is used for driving the filter disc mounting plate to do linear motion along the micro guide rail, so that switching of different filter discs is realized.
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