自动系统校准用于正轨机器人系统的自动系统校准
Qianqian Li1, Guoliang Li2, Xiaojing Liu3
1Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250033, Shandong, China.
International journal of computer assisted radiology and surgery
|November 12, 2025
概括
这项研究引入了手术机器人的自动校准方法,显著提高了整形机器人系统 (ORS) 的精度和效率. 新技术将手动干预的错误最小化,为更自主化的外科手术程序铺平了道路.
科学领域:
- 机器人在医学中的机器人
- 手术导航系统 手术导航系统
- 医学成像和图像处理.
背景情况:
- 系统校准对于手术机器人的准确性至关重要.
- 传统的方法在正轨机器人系统 (ORS) 中与不规则形状的工具作斗争,需要人工干预和降低精度.
- 需要自动校准来提高效率和准确性.
研究的目的:
- 开发和验证一个自动校准方法,用于直立机器人系统 (ORSs).
- 为了提高手术机器人校准的准确性和效率,特别是不规则形状的末端工具.
- 为了最大限度地减少与手动校准过程相关的错误.
主要方法:
- 开发了一种自动化方法,将3D工具模型与手术前CT空间对齐,用于图像注册和手眼校准.
- 重建了手眼工具校准方程,使用手术前数据来定义工具终点 (TEP).
- 采用强大的最小平方优化方法来解决转换矩阵和自动化机器人路径规划以进行校准.
主要成果:
- 在模拟实验中达到1.04 ± 0.54mm的校准误差.
- 将总执行错误减少到1.56 ± 0.61mm.
- 在没有人参与的情况下,证明了整个校准过程的成功自动化.
结论:
- 拟议的方法自动化了手术机器人校准,提高了系统的准确性和稳定性.
- 预计这种方法将促进更自主和更有效的外科手术程序.
- 未来的工作将通过整合无标记跟踪和机器学习来解决基于标记的跟踪依赖性和小样本大小等局限性.
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