The utility model relates to a retractor for the back wall of the pharynx, which comprises a clamp handle and an articulated part arranged side by side with two clamp handles. The middle position of the clamp handle is provided with an articulated part, and the two clamp handles are articulated together, including a transition handle, an outer arc handle and an expansion claw. The two transition handles are vertically arranged, the upper end of the transition handle is fixed with the front end of the clamp handle, and the two outer arc handles are vertically arranged on both sides of the middle. The protrusion is circular, the upper end of the outer arc handle is respectively fixed with the lower end of the corresponding transition handle, and the lower end of the outer arc handle is respectively fixed with the corresponding expansion claw. Through this technical scheme, the mucosa and muscle of the back pharyngeal wall are pulled apart by three claw hooks at the lower end of both sides, and the middle of both sides are curved outward to adapt to the shape of the mouth, increase the exposure range, and use self-locking machine. To maintain the stability of retropharyngeal wall mucosa and muscle pulling to both sides, not only effectively improve the intraoperative vision, reduce the working pressure of assistants, improve the quality of surgery and reduce the operation time.
【技术实现步骤摘要】
咽后壁牵开器
本技术涉及一种外科手术辅助装置,特别是涉及一种咽后壁牵开器。
技术介绍
在进行咽后壁手术时,如经口齿突磨除术,需要将咽后壁粘膜和肌肉向两侧牵开,由于位置较深,操作范围狭小,当助手用拉钩向一侧或两侧牵开时,常常与术者操作相冲突,并且持续时间不能长,长了靠手臂牵拉不稳定。
技术实现思路
有鉴于此,本技术的主要目的在于提供一种咽后壁牵开器,设计一个与咽后壁深度相应,与口腔两侧壁外形适形的剪式爪形牵开器,通过两侧下端三爪钩,将咽后壁粘膜和肌肉向两侧牵开,两侧中间向外弧形弯曲,以适应口腔形状,增加暴露范围,利用自锁止机构保持咽后壁粘膜和肌肉向两侧牵开的稳定,通过本技术方案,不但有效的提高了术中的视野,减轻了助手的工作压力,提高了手术质量和减少了手术时间,从而有效的达到减轻患者痛苦的目的。为了达到上述目的,本技术的技术方案是这样实现的:一种咽后壁牵开器,包括钳柄和铰接部,两个钳柄并排设置,钳柄中间位置设置有铰接部,将两个钳柄铰接在一起,包括过渡柄、外括弧形柄和扩张爪,两个过渡柄垂直设置,过渡柄的上端与钳柄前端相固定连接,两个外括弧形柄竖直设置中部向两侧凸起呈圆弧状,外括弧形柄上端分别与所对应的过渡柄下端相固连,外括弧形柄下端分别与所对应的扩张爪相固连。作为进一步的技术方案,所述扩张爪竖直设置为片状,扩张爪下部设为三个齿瓜,齿瓜下端设置有向外侧凸起呈钩状的齿尖。作为进一步的技术方案,还包括自锁机构,所述自锁机构分别设置在钳柄的后部。采用上述技术方案后的有益效果是:一种咽后壁牵开器,通过本技术方案,利用两侧下端三爪钩,将咽后壁粘膜和肌肉向两侧牵开,两侧中间向外弧形弯 ...
【技术保护点】
1.一种咽后壁牵开器,包括钳柄和铰接部,两个钳柄并排设置,钳柄中间位置设置有铰接部,将两个钳柄铰接在一起,其特征在于,包括过渡柄、外括弧形柄和扩张爪,两个过渡柄垂直设置,过渡柄的上端与钳柄前端相固定连接,两个外括弧形柄竖直设置中部向两侧凸起呈圆弧状,外括弧形柄上端分别与所对应的过渡柄下端相固连,外括弧形柄下端分别与所对应的扩张爪相固连。
【技术特征摘要】
1.一种咽后壁牵开器,包括钳柄和铰接部,两个钳柄并排设置,钳柄中间位置设置有铰接部,将两个钳柄铰接在一起,其特征在于,包括过渡柄、外括弧形柄和扩张爪,两个过渡柄垂直设置,过渡柄的上端与钳柄前端相固定连接,两个外括弧形柄竖直设置中部向两侧凸起呈圆弧状,外括弧形柄上端分别与所对应的过渡柄下端...
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