支撑股骨头防止塌陷的羟基磷灰石涂层空芯钛棒制造技术

本发明专利技术属于临床医学、关节外科学及骨科材料学，具体的说是一种支撑股骨头防止塌陷并且带有羟基磷灰石涂层的空芯钛棒。股骨头囊性病变特别是股骨头坏死髓芯减压后遗留的骨缺损和股骨颈薄弱区，会导致病变股骨头内支撑结构变薄弱且加速股骨头的塌陷；羟基磷灰石涂层的钛棒发明专利技术理念是对股骨头囊性病变特别是早期股骨头坏死的中青年患者，以空心钛棒为机械支撑，有利于髓腔减压及新生骨小梁的长入，可以有效的防止股骨头塌陷，避免行人工关节置换起积极作用，待病变愈合后易取出钛棒。本发明专利技术棒身为羟基磷灰石涂层，整棒长度对应的棒尾粗螺纹长度为60-70×10mm、72-80×15mm、82-115×2mm，尾端为6mm等边三角型凹口。

Hydroxyapatite coated hollow titanium rods for preventing collapse of femoral head

The invention belongs to the field of clinical medicine, joint surgery and Department of orthopedics materials, in particular to an empty core titanium bar which supports a femoral head to prevent collapse and has a hydroxyapatite coating. The femoral head cystic lesions, especially bone defect of femoral neck and femoral head necrosis core decompression left after the weak area, will lead to the collapse of lesion within the femoral head support structure becomes weak and the acceleration of the femoral head; hydroxyapatite coated titanium rod is invention idea of femoral head cystic lesions, especially early avascular necrosis of the femoral head in young patients with hollow titanium bars for mechanical support, is conducive to the medullary cavity decompression and bone trabecula ingrowth, can effectively prevent the collapse of the femoral head, avoid the artificial joint replacement plays a positive role, to be easy to remove the lesion healed after titanium rod. The invention is made of hydroxyapatite coating, and the length of rod tail crude thread corresponding to the length of the whole rod is 60-70 * 10mm, 72-80 * 15mm and 82-115 * 2mm, and the tail end is 6mm equilateral triangle notch.

【技术实现步骤摘要】

【技术保护点】
１．一种支撑股骨头防止塌陷并且带有羟基磷灰石涂层的空芯钛棒，其特征是钛棒质地为国产钛金属，棒身（１）为羟基磷灰石涂层（Ａ－Ａ），棒直径１０ｍｍ，中空径为２ｍｍ，棒尾（２）为粗螺纹，长度为１０－２０ｍｍ，以每５ｍｍ逐渐递增棒尾长度，螺纹芯直径１０ｍｍ，螺纹外径１１ｍｍ，螺纹间距１．５ｍｍ，整棒长度为６０－１１５ｍｍ，以每２ｍｍ逐渐递增棒长度，整棒长度对应的棒尾粗螺纹长度为６０７０×１０ｍｍ、７２－８０×１５ｍｍ、８２－１１５×２ｍｍ，尾端（３）有边长为６ｍｍ等边三角型凹口（Ｂ－Ｂ）。

【技术特征摘要】

【专利技术属性】
技术研发人员：杨新明，石蔚，
申请(专利权)人：杨新明，
类型：发明
国别省市：13