The utility model relates to a minimally invasive surgical instrument for the fracture of the middle and distal junction of the humerus, which comprises a steel plate, a casing, a casing core and a guide device. The steel plate is longitudinally provided with a connecting hole which is connected with the humerus screw. The guide device is an L-shaped guide device, and one side of the guide device is provided with a positioning through hole which is perpendicular to the other side, and the positioning through hole of the lower end surface of this side is provided with a positioning convex pin around the positioning through hole; the positioning through hole of the lower end surface of this side is sleeved in At the upper end of the screw, the positioning screw of the steel plate is matched with the positioning screw hole of the steel plate; the positioning convex pin is inserted into the positioning concave hole corresponding to the steel plate to form a corresponding match, the other side of the guide device is longitudinally provided with an arranged guide hole, which is one-to-one matched with the connection hole on the one side of the steel plate, the sleeve core is inserted into the sleeve, and passes through the guide hole of the guide device together with the sleeve, and the lower end is connected with the steel The connecting holes corresponding to the plate are butted. The utility model is safer and more reliable than the back side fixation of the humerus, reduces the distance of the distal screw hole, increases the number of the distal screw fixation, and can anatomically reset the diaphysis.
【技术实现步骤摘要】
肱骨中远交界部骨折微创手术器具
肱骨中远交界部骨折微创手术器具,是对肱骨中远交界部骨折进行微创开口并用钢板及螺钉固定骨折交界两侧的手术的专门器具。
技术介绍
肱骨中远交界部存在一个力学交界区域,从而成为间接暴力骨折的好发部位。应用功能支具的非手术治疗方式具有很高的骨折愈合率和良好的功能。然而其缺点也无法避免,包括长时间的制动,很难控制远端骨块从而造成畸形愈合,肘关节僵硬,以及闭合复位过程中可能造成桡神经损伤。解剖复位和可靠固定有利于早期肘关节活动度的恢复,很多作者支持切开复位钢板内固定手术。传统切开内固定手术存在医源性桡神经损伤的风险,而且造成广泛的软组织剥离,遗留很长的手术瘢痕。而微创钢板内固定手术以其创伤小,恢复快,切口瘢痕较为美观等优点在创伤骨折的治疗方面的不断推广普及。中国专利技术专利(申请号:CN201510886876.5)公开了一种皮外定位板与皮下接骨板的连接和夹送的装置,它包括连接杆和夹送推把,在皮下接骨板和皮外定位板的板面上分别有连接孔,两个连接孔在皮下接骨板和皮外定位板的板面上的位置相同且精确相对,连接杆的两端分别与两个连接孔相连接,连接孔连接后的皮下接骨板和皮外定位板的长度方向的中心线在同一垂直平面内平行,夹送推把的前端夹持在皮外定位板或皮下接骨板上,夹送推把的后端有推动把手。皮外定位板与皮下接骨板由连接杆和夹送推把两个部位进行对应连接固定。皮外定位板与皮下接骨板固定后才能将皮内接骨板送入皮下。所以要开大的刀口,创伤面大。皮外定位板与皮下接骨板一起操作送入皮下贴附在骨头外面,非常费时费事 ...
【技术保护点】
1.一种肱骨中远交界部骨折微创手术器具,有钢板、套管、套管芯和导向器,钢板纵向带有与肱骨螺钉连接的连接孔;其特征在于:导向器为L型的导向器,导向器一边开有与另一边垂直的定位通孔,这一边下端面定位通孔周围带有定位凸销;这一边下端面定位通孔套在钢板的定位螺钉上端,钢板的定位螺钉配合设置在钢板的定位螺孔;所说的定位凸销插入钢板对应的定位凹孔形成对应配合,所说的导向器另一边纵向带有排列的导向孔,并与钢板这一侧连接孔上下一一对应,套管芯插入套管,并同套管一起从导向器的导向孔穿过,下端与钢板对应的连接孔相对接。/n
【技术特征摘要】
1.一种肱骨中远交界部骨折微创手术器具,有钢板、套管、套管芯和导向器,钢板纵向带有与肱骨螺钉连接的连接孔;其特征在于:导向器为L型的导向器,导向器一边开有与另一边垂直的定位通孔,这一边下端面定位通孔周围带有定位凸销;这一边下端面定位通孔套在钢板的定位螺钉上端,钢板的定位螺钉配合设置在钢板的定位螺孔;所说的定位凸销插入钢板对应的定位凹孔形成对应配合,所说的导向器另一边纵向带有排列的导...
【专利技术属性】
技术研发人员:曲巍,赵巍,蒋华军,
申请(专利权)人:大连医科大学附属第一医院,
类型:新型
国别省市:辽宁;21
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