A wedge type adjustable intervertebral fusion device, relates to spinal fusion surgery intervertebral fusion device. Is provided with a kidney shaped supporting platform and the sliding support block; the surface subreniform support platform with dentations, on the kidney shaped support platform is arranged between the bone hole, hole for bone graft bone fusion, subreniform, on the front platform and left behind the limit structure and slope on the right side of the kidney shaped supporting platform is provided with a bell, the bell of the slope stability for subreniform support platform, on the opposite kidney shaped support platform are respectively arranged on the upper and lower sliding sliding support block through the sliding slot wedge on subreniform support platform; the upper and lower ends of the slide block is provided with convex support T, the T and the convex sliding slot is arranged on the matched; kidney shaped bone hole and arranged on the sliding support block of the bone graft in the middle of the supporting platform through Kong Xiang.
【技术实现步骤摘要】
一种楔入式可调节椎间固定融合器
本技术涉及用于脊柱椎间融合手术的椎间融合器,尤其是涉及一种楔入式可调节椎间固定融合器。
技术介绍
在脊柱外科中经椎间孔椎体间融合(Transforaminallumbarinterbodyfusion)技术(TLIF)相对于经前路椎体间融合(Anteriorlumbarinterbodyfusion)技术(ALIF)和经后路椎体间融合(Posteriorlumbarinterbodyfusion)技术(PLIF)是一种较新的脊柱融合技术。TLIF技术具有创伤小、融合率高和符合脊柱生物力学的特点,在脊柱融合领域逐渐占主导地位(ChristopherP,Ames,FrankL,etal.Biomechanicalcomparisionofposteriorlumbarinterbodyfusionandtransforaminallumbarinterbodyfusionperformedat1and2levels[J].Spine,2005,19:562-566)(AnnetteKettler,WernerSchmoelz,ErichKast.Invitrostabilizingeffectofatransforaminalcomparedwithtwoposteriorlumbarinterbodyfusioncages[J].Spine,2005,22:665-670)。它是通过后路实行彻底的单侧关节突关节切除术,而不去显露神经根以及硬膜等椎管内结构。由此可降低了包括神经并发症在内的多种并发症的风险。TLIF可以提供前柱的 ...
【技术保护点】
一种楔入式可调节椎间固定融合器,其特征在于设有上肾形支撑平台、下肾形支撑平台和滑动支撑块;所述上肾形支撑平台和下肾形支撑平台的表面带齿状凸起,在上肾形支撑平台和下肾形支撑平台中间设有植骨孔,植骨孔用于植骨融合,上肾形支撑平台和下肾形支撑平台的前面、后面和左面各有1个限位结构,在上肾形支撑平台和下肾形支撑平台的右侧面设有开喇叭口的斜坡面,所述开喇叭口的斜坡面用于稳定上肾形支撑平台和下肾形支撑平台,上肾形支撑平台和下肾形支撑平台的相对面分别设有上滑槽和下滑槽,滑动支撑块通过上滑槽和下滑槽楔入上肾形支撑平台与下肾形支撑平台之间;所述滑动支撑块的上下端设有T形凸起,所述T形凸起与上滑槽和下滑槽相配合;设于上肾形支撑平台和下肾形支撑平台中间的植骨孔与设于滑动支撑块上的植骨孔相贯通。
【技术特征摘要】
1.一种楔入式可调节椎间固定融合器,其特征在于设有上肾形支撑平台、下肾形支撑平台和滑动支撑块;所述上肾形支撑平台和下肾形支撑平台的表面带齿状凸起,在上肾形支撑平台和下肾形支撑平台中间设有植骨孔,植骨孔用于植骨融合,上肾形支撑平台和下肾形支撑平台的前面、后面和左面各有1个限位结构,在上肾形支撑平台和下肾形支撑平台的右侧面设有开喇叭口的斜坡面,所述开喇叭口的斜坡面用于稳定上肾形支撑平台和下肾形支撑平台,上肾形支撑平台和下肾形支撑平台的相对面分别设有上滑槽和下滑槽,滑动支撑块通过上滑槽和下滑槽楔入上肾形支撑平台与下肾形支撑平台之间;所述滑动支撑块的上下端设有T形凸起,所述T形凸起与上滑槽和下滑槽相配合;设于上肾形支撑平台和下肾形...
还没有人留言评论。发表了对其他浏览者有用的留言会获得科技券。