| Summary: | 碩士 === 中臺科技大學 === 醫學影像暨放射科學系暨研究所 === 106 === The sulcus angle of the femoral trochlea is particularly important for evaluating the patellofemoral joint（PFJ）. The location and configuration of the intercondylar groove of the distal femur is clinically significant in the mechanics and pathomechanics of the PFJ. The aged society brings elder people in the tendency of increment of this disease. The imaging of PFJ has been becoming more important in the radiology department for the sulcus angle.
The auxiliary frame adopts aluminum alloy and adopts multi-stage adjustment function to facilitate the bending of patients with different angles. The design of the base and hidden height can be adjusted according with the height of the examination table. The handles are easy to accommodate and designated fashionally.
Composed of small parts, a total of 22 parts were cut. After metal cutting, the parts were anodized and black, and the instrument wheel was added to the base to allow the user to move easily. The positioning bar can also be adjusted in length. The length of the positioning bar is 22～37.5 cm and the hidden handle. The cassette positioning bar and the calf placing frame can be folded without occupying space, and can provide accommodating features.
The knee bending angle was designed with five angles. In order to meet the increasing demand for photography in the clinic, a convenient, easy-to-store and angle-changing knee assist frame that can be used at angles of 30°, 35°, 40°, 45°, and 50° in order to meet the increasing demand for clinical photography. The use of patients with impaired joints that are difficult to bend will increase the convenience of clinical photography and benefit patients with knee discomfort.
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