arXiv:2603.08490cs.RO2026-03被引 1

开源平台实现精准腹腔镜手术机器人控制,支持多种机械臂与自主学习。

An Open-Source Robotics Research Platform for Autonomous Laparoscopic Surgery

  • 基于解析解的远程中心控制器,直接满足穿刺孔约束
  • 亚毫米级运动偏差,轨迹平滑度媲美专家操作数据
  • 兼容工业机械臂,适合手术数据采集与自主策略部署

自主机器人辅助手术需要可靠、高精度的平台,严格遵循微创手术的安全与运动学约束。现有研究平台多基于 da Vinci Research Kit,受限于缆线驱动结构,导致状态空间不一致,影响自主策略训练可靠性。本文提出一种开源、机械臂无关的远程中心(RCM)控制器,采用闭式解析速度求解器,无需迭代优化即可确定性地满足穿刺孔约束。控制器在笛卡尔空间运行,使任意工业机械臂均可作为手术机器人使用。我们实现了 UR5e 与 Franka Emika Panda 两种机械臂的集成,并融合立体三维感知。系统集成于全栈 ROS 架构的外科机器人平台,支持远控、示范录制与学习策略部署,采用解耦服务器-客户端架构。在模拟物、离体猪肠与活体猪腹腔镜操作中验证了系统性能:所有条件下 RCM 偏差均保持亚毫米级,轨迹平滑度指标(SPARC、LDLJ)与 JIGSAWS 基准中在 da Vinci 系统上记录的专家示范相当。结果表明,该平台具备真实手术场景下远控、数据采集与自主策略部署所需的精度与鲁棒性。

原文摘要 · Abstract (English)

Autonomous robot-assisted surgery demands reliable, high-precision platforms that strictly adhere to the safety and kinematic constraints of minimally invasive procedures. Existing research platforms, primarily based on the da Vinci Research Kit, suffer from cable-driven mechanical limitations that degrade state-space consistency and hinder the downstream training of reliable autonomous policies. We present an open-source, robot-agnostic Remote Center of Motion (RCM) controller based on a closed-form analytical velocity solver that enforces the trocar constraint deterministically without iterative optimization. The controller operates in Cartesian space, enabling any industrial manipulator to function as a surgical robot. We provide implementations for the UR5e and Franka Emika Panda manipulators, and integrate stereoscopic 3D perception. We integrate the robot control into a full-stack ROS-based surgical robotics platform supporting teleoperation, demonstration recording, and deployment of learned policies via a decoupled server-client architecture. We validate the system on a bowel grasping and retraction task across phantom, ex vivo, and in vivo porcine laparoscopic procedures. RCM deviations remain sub-millimeter across all conditions, and trajectory smoothness metrics (SPARC, LDLJ) are comparable to expert demonstrations from the JIGSAWS benchmark recorded on the da Vinci system. These results demonstrate that the platform provides the precision and robustness required for teleoperation, data collection and autonomous policy deployment in realistic surgical scenarios.

手术机器人开源平台远程中心自主控制

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