The utility model discloses a hip joint retractor, which relates to an orthopaedic surgical fixing device. The base plate is supported and fixed by a base. A ball holder is arranged on the base, a steering ball is arranged in the ball holder, a central screw is connected with the steering ball, the other end of the central screw is fixed in the middle of the bridge plate, and a curved screw is fixed at each end of the bridge plate. The advantages of the utility model are as follows: 1. The direction of the hip retractor is flexible and adjustable, which is suitable for different individuals and is convenient for positioning and fixing. 2, fixed nail stereoscopic location, firm and reliable. 3. It can effectively regulate the joint space of the femoral head. 4. It accords with the physiological structure characteristics of human body, making the femoral head and acetabulum space even. 5, facilitate patient activity. Overall, it is more conducive to new bone formation and joint remodeling.
【技术实现步骤摘要】
一种髋关节牵开器
本技术涉及医疗器械
,进一步涉及骨外科手术固定装置,尤其是用于治疗儿童股骨头坏死的髋关节牵开器。
技术介绍
儿童先天发育不良、髋关节损伤、外伤等,如不及时治疗,会造成儿童股骨头坏死。儿童股骨头坏死又称股骨头骨骺软骨炎或扁平髋、或Legg-Calve’-Perthes综合征,多发于2-12岁儿童。本病开始患儿叫膝痛-髋关节痛,步行不便或跛行,患髋不能屈伸、内收。此时家长往往误认为扭伤,未加注意,拖延病程,造成股骨头压扁-"扁平髋",造成终生残疾。因此,本症早期诊断早期治疗十分重要。现有技术中,针对儿童的生理特点,进行应力环境下儿童坏死股骨头早期修复,采用髋关节骨外固定支架进行髋关节间隙撑开手术,此手术可拉开髋关节间隙,减少股骨头的压力,达到患髋的低应力环境,减轻股骨头负重,保持患髋的外展内旋,增加髋臼对股骨头的包容,允许关节软骨缺损处的纤维性修复,有利于股骨头塑形,最终可修复儿童坏死的股骨头。现有技术中,髋关节骨外固定支架的髋关节牵开器为铰链式外固定支架,其结构是:一个直杆前端铰接圆球,圆球置于底座上,整体处一个平面内。由于其为平面结构,存在着不易固定牢固、牵开股骨头与髋臼间隙不均匀、患者运动相对受限等问题。
技术实现思路
本技术的目的是为了提供一种髋关节牵开器,它可克服现有技术中髋关节牵开器的不易固定牢固、牵开股骨头与髋臼间隙不均匀、患者运动受限问题。本技术的目的是通过以下技术方案实现的:一种髋关节牵开器,其特征在于:底板通过底座支撑固定底座,底座上设置有球臼,球臼内设置转向球,转向球连接有中心螺杆,中心螺杆另一端固定于桥板中部,桥板两端各 ...
【技术保护点】
1.一种髋关节牵开器,其特征在于:底板通过底座支撑固定底座,底座上设置有球臼,球臼内设置转向球,转向球连接有中心螺杆,中心螺杆另一端固定于桥板中部,桥板两端各固定有一曲螺杆。
【技术特征摘要】
1.一种髋关节牵开器,其特征在于:底板通过底座支撑固定底座,底座上设置有球臼,球臼内设置转向球,转向球连接有中心螺杆,中心螺杆另一端固定于桥板中部,桥板两端各固定有一曲螺杆。2.根据权利要求1所述的髋关节牵开器,其特征在于:所述底座...
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