注意：如果只是维修阀瓣，就不要拆卸阀瓣固定器，只需拆卸支撑阀瓣固定器板的六角头螺丝和拆卸阀瓣即可。

NOTE: the disc holder should not be removed when servicing only the disc, remove Allen head screws holding the disc retaining plate and replace disc.

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目的：观察新型头环石膏固定器在颈椎结核治疗中应用的临床效果。方法：用本法治疗6例伴有后突畸形的颈椎结核。

Objective: To observe the clinical results of the use of new type halo-cast fixation apparatus in the treatment of tuberculosis of cervical spine.

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本固定器，结构科学合理，适用于头、颈、脊柱、胸、腰各段后路手术。

The said fixing device with scientific and reasonable construction is suitable to surgical operation for head, neck, back bone, chest and waist.

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