A spinous process fixation apparatus comprises: a support part with two opposite ends defining and forming a first support end face and a second support end face which are abutted against the spinous process of two adjacent vertebral bodies and a fixing wing part formed at the side edge of the support part and provided thereon with a plurality of fixing holes to be passed through by screws and secured and locked on the two vertebral bodies. This invention does not require screws locked on very thin and fragile spinous process so as to avoid spinous process collapse and uses the fixing wing part to cover on the region where vertebral bodies are scraped during surgical operation.一種棘突固定器,係含有:支撐部,該支撐部之相對兩端界定形成第一支撐端面及第二支撐端面,令該第一、二支撐端面抵靠於兩相鄰椎體之棘突;以及固定翼部,係形成於該支撐部的側緣,於該固定翼部上設有多數固定孔,分別以螺釘穿經固定孔後,鎖固於該兩椎體上;使本發明無需在極薄且脆弱的棘突上鎖入螺釘,可有效避免棘突崩裂,並可藉由該固定翼部覆蓋在手術中刮除椎體的區域。(10)‧‧‧棘突固定器(11)‧‧‧支撐部(111)‧‧‧第一支撐端面(112)‧‧‧第二支撐端面(12)‧‧‧固定翼部(121)‧‧‧固定孔(122)‧‧‧襯套(13)‧‧‧螺釘(S)(S’)‧‧‧椎體(S1)(S2)‧‧‧棘突(T)‧‧‧橫突
