PROBLEM TO BE SOLVED: To provide a spinous process fixator capable of easing pain of a patient by removing compression on a nerve and a vessel.SOLUTION: A spinous process fixator 10 comprises a support part 11 and a fixation wing part 12. At both opposed ends of the support part 11, a first support end surface 111 and a second support end surface 112 are formed, and the first and second support end surfaces 111 and 112 contact spinous processes S1 and S2 of two adjacent spines S and S. The fixation wing part 12 is formed at a side edge of the support part 11 and many fixation holes 121 are installed on the fixation wing part 12. Bolts 13 after being respectively inserted into the fixation holes 121 are screwed onto the spines S and S and are fixed, and then the fixation wing part covers a surgically-removed spinal section. Accordingly, since there is no need to screw the bolts onto the extremely-thin and fragile spinous processes, the fixator can effectively prevent the spinous processes from rupturing and can cover the surgically-removed spinal section with the fixation wing part 12.COPYRIGHT: (C)2015,JPO&INPIT【課題】神経及び血管への圧迫を取り除き、患者の痛みを改善することができる棘突起固定器を提供する。【解決手段】棘突起固定器10はサポート部11、固定翼部12を備え、サポート部11の相対する両端には第一サポート端面111及び第二サポート端面112を形成し、第一、二サポート端面111、112は隣接する2つの脊椎S、S’の棘突起S1、S2に接触し、固定翼部12はサポート部11の側縁に形成し、固定翼部12上には多数の固定孔121を設置し、それぞれボルト13を固定孔121に差し込んだ後、2つの脊椎S、S’上に螺合して固定し、前記固定翼部は、手術で切除された脊椎の区域を覆う。これにより、極めて薄くかつ脆弱な棘突起上にボルトを螺入する必要がないため、棘突起の破裂を効果的に予防でき、しかも固定翼部12により手術で切除された脊椎の区域を覆うことができる。【選択図】図4