The purpose of the utility model is to provide a minimally invasive spinal pedicle nail implantation drilling tool for spinal navigation, in order to improve the safety and clinical effect of the pedicle screw insertion, which belongs to the technical field of medical instruments in the Department of orthopedics. The drilling tool is composed of a tap rod sleeve, a tap rod, a puncture needle and a probe. The outer diameter of the taps is matched with the inner diameter of the taps sleeve, and the length of the taps is greater than the length of the taps. The puncture needle and the outer diameter of the probe match the inner diameter of the taps, and the length of the probe and needle is greater than the length of the taps. When the tap is inserted into the protective sleeve of the tap, the probe or puncture needle can be inserted into the tap rod and connected with the navigation reference frame, so that the work can be carried out. The end of the tapping rod sleeve is designed to be serrated, so that the contact between the tap sleeve and the contact surface is more stable. The drilling tool can also control the drilling depth while improving the speed and precision of the drill hole, and the safety and accuracy of the drilling of the pedicle screw are further improved by using the navigation system.
【技术实现步骤摘要】
脊柱导航微创椎弓根钉植入钻孔工具
本技术涉及骨科医疗器械
,具体涉及脊柱导航微创椎弓根钉植入钻孔工具。
技术介绍
经皮的椎弓根螺钉内固定手术治疗胸腰椎骨折,当下椎弓根螺钉的置入主要依靠手感和凭借经验,采用手钻引孔后用椎弓根丝锥攻丝,建立螺钉通道,然后将椎弓根螺钉植入。因此,椎弓根螺钉的置入需要高超的手术技巧,而此类技术的训练周期较长,复杂的手术要求更高。如果钻孔或螺钉置入不当,极易穿破骨皮质,导致脊髓、神经根、内脏损伤等并发症。
技术实现思路
本技术的目的旨在提供一种脊柱导航微创椎弓根钉植入钻孔工具,以提高椎弓根螺钉置入的安全性和精度。为实现上述目的,本技术采用以下技术手段:脊柱导航微创椎弓根钉植入钻孔工具,由丝锥杆套筒、丝锥杆、穿刺针和探针组成。丝锥杆套筒为圆管,一端端部安装有手柄,另一端端部为锯齿状。丝锥杆轴向设有导针孔,丝锥杆上部设有手柄、下部设有丝锥。丝锥杆外径与丝锥杆套筒内径匹配,便于丝锥杆自由穿放在丝锥杆套筒内。丝锥杆长度大于丝锥杆套筒长度,丝锥杆丝锥完全伸出丝锥杆套筒外。穿刺针和探针外径与丝锥杆内径匹配,便于穿刺针和探针自由穿放在丝锥杆内,穿刺针和探针长度大于丝锥杆长度,穿刺针和探针针尖伸出丝锥外。按照上述技术方案即可做成脊柱导航微创椎弓根钉植入钻孔工具,使用时将丝锥杆插入丝锥保护套筒内,再将穿刺针或探针插入丝锥杆内、连接导航参考架,便可开展工作。穿刺针或探针穿套在丝锥杆内、丝锥杆又穿套在丝锥杆套筒内,从而在椎弓根螺钉置入钻孔作业过程中省去了反复交替更换丝锥杆和穿刺针或探针的麻烦,提高了钻孔速度。同时,有丝锥杆套筒的导向作用,提高了钻孔精度 ...
【技术保护点】
脊柱导航微创椎弓根钉植入钻孔工具,由丝锥杆套筒(3)、丝锥杆(4)、穿刺针(5)和探针(7)组成,丝锥杆套筒(3)为圆管,一端端部安装有手柄二(2),另一端端部为锯齿状;丝锥杆(4)外径与丝锥杆套筒(3)内径匹配,丝锥杆(4)长度大于丝锥杆套筒(3)长度,丝锥杆(4)轴向设有导针孔,丝锥杆(4)上部设有手柄一(1)、下部设有丝锥(6),丝锥(6)螺纹与椎弓根钉螺纹一致,穿刺针(5)和探针(7)外径与丝锥杆(4)内径匹配,穿刺针(5)和探针(7)长度大于丝锥杆(4)长度,其特征在于:穿刺针(5)和探针(7)采用导航参考架专用穿刺针和探针,穿刺针(5)和探针(7)针尖伸出丝锥(6)外,丝锥(6)完全伸出丝锥杆套筒(3)外。
【技术特征摘要】
1.脊柱导航微创椎弓根钉植入钻孔工具,由丝锥杆套筒(3)、丝锥杆(4)、穿刺针(5)和探针(7)组成,丝锥杆套筒(3)为圆管,一端端部安装有手柄二(2),另一端端部为锯齿状;丝锥杆(4)外径与丝锥杆套筒(3)内径匹配,丝锥杆(4)长度大于丝锥杆套筒(3)长度,丝锥杆(4)轴向设有导针孔,丝锥杆(4)上部设有手柄一(1)、下部设有丝锥(6),丝锥(6)螺纹与椎弓根钉螺纹一致,穿刺针(5)和探针(7)外径与丝锥杆(4)内径匹配,穿刺...
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