Knee part digital image positioning instrument with light-shielding plate

Abstract

The invention discloses a knee digital image positioning instrument with a light-shielding plate, which comprises a bottom plate and a guide rail. A threaded cylinder is arranged on the outside of the insertion hole, and the threaded cylinder is fixed on the sliding cylinder. The upper end of the threaded cylinder is inserted into the A threaded rod is connected, and the outer end of the threaded rod is connected with a handle, and a second spring is arranged in the threaded cylinder, and the second spring is located on the lower side of the threaded rod, and the inner end of the second spring is against the non-slip rubber on the block. The person lies on the bottom plate, the legs are placed on the support plate, and the pulley can move left and right in the guide rail, so that the anti-shock plate can be moved according to people of different heights, and the anti-shock plate can be rotated through the side handle, and the threaded rod is connected to the second spring Extrusion is generated, thereby squeezing the slide bar, so that the anti-shock plate will not rotate by itself. The extrusion force of the second spring can be adjusted through the handle, and the height of the anti-shock plate can be adjusted by loosening the telescopic adjustment knob. It is very easy to use. It is convenient and well protects important parts of the body from innocent radiation.

Description

technical field [0001] The invention belongs to the technical field of photographic inspection, and relates to a digital image positioner, in particular to a knee digital image positioner with a shading plate. Background technique [0002] At present, when the radiology department of each hospital performs knee joint lateral examination, the subject is lying on the imaging bed with the affected side on the lower side, the knee joint is flexed at an angle of 135°, the coronal plane is perpendicular to the bed plane, and the centerline of the tube ball is cephalad. Tilt 5-10°, and inject at the midpoint between the lower edge of the patella and the fold line of the popliteal fossa. The operator does not have an accurate body surface positioning point to complete the 135° angle of knee joint flexion during the positioning process, and the coronal plane is perpendicular to the bed surface, which lacks operability. At the same time, according to the patient's size, the center lin...

AI Technical Summary

Problems solved by technology

In addition, the lower limb of the affected side cannot be perpendicular to the bed surface and the inclination angle of the center line is not appropriate, which will cause the medial and lateral femoral condyles to fail to coincide.

There are also auxiliary positioning instruments on the market, such as the patent with the notification number CN 202005761 U. However, this photography has radiation, which will cause harm to some innocent parts of the body, especially for children and pregnant women. Radiation protection is very important

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