摘要：【中文】本发明属于医疗用具技术领域，具体公开了一种颅内血肿微创穿刺术用立体定位尺。该立体定位尺包括顶杆、左侧杆、右侧杆、标准划线尺、穿刺划线尺和中尺，标准划线尺、穿刺划线尺和中尺均由可弯曲变形的材料制成；左侧杆、右侧杆和中尺均和顶杆垂直连接且可相对顶杆移动，左侧杆和右侧杆上开分别开设有左侧滑动槽和右侧滑动槽；标准划线尺、穿刺划线尺和中尺上分别开设有标准划线槽、穿刺划线槽和正中划线槽，所述标准划线槽的两端分别与左侧滑动槽和右侧滑动槽搭接并通过第一紧固螺栓连接，穿刺划线槽的两端分别与左侧滑动槽和右侧滑动槽搭接并通过第二紧固螺栓连接。该立体定位尺有效提升了颅内血肿微创穿刺术中穿刺平面和标准平面划线的精确度。 【EN】The invention belongs to the technical field of medical appliances, and particularly discloses a three-dimensional positioning ruler for intracranial hematoma minimally invasive puncture. The three-dimensional positioning ruler comprises a top rod, a left side rod, a right side rod, a standard marking ruler, a puncture marking ruler and a middle ruler, wherein the standard marking ruler, the puncture marking ruler and the middle ruler are all made of materials capable of bending and deforming; the left side rod, the right side rod and the middle ruler are vertically connected with the ejector rod and can move relative to the ejector rod, and a left side sliding groove and a right side sliding groove are respectively formed in the left side rod and the right side rod; standard marking off groove, puncture marking off groove and centre marking off groove have been seted up respectively on standard marking off chi, puncture marking off chi and the well chi, the both ends in standard marking off groove respectively with left side sliding tray and right side sliding tray overlap joint and through first fastening bolt connection, the both ends in puncture marking off groove respectively with left side sliding tray and right side sliding tray overlap joint and through second fastening bolt connection. The three-dimensional positioning ruler effectively improves the marking accuracy of the puncture plane and the standard plane in the intracranial hematoma minimally invasive puncture.