REPRESENTED BY THE EUROPEAN COMMISSION;THE EUROPEAN ATOMIC ENERGY COMMUNITY (EURATOM)
发明人:
Emilio RUIZ MORALES,Carlos CORRECHER SALVADOR
申请号：
US16730903
公开号：
US20200156259A1
申请日:
2019.12.30
申请国别(地区):
US
年份:
2020
代理人:
摘要：
A method of force estimation for a minimally invasive medical system comprising a robot manipulator (10). The manipulator has an effector unit (12) equipped with a 6-degrees-of-freedom (DOF) force/torque sensor and is configured to hold a minimally invasive instrument (14) having a first end (16) mounted to the effector unit and a second end (20) located beyond an external fulcrum (23) that limits the instrument in motion, usually to 4 DOF.The method comprising the steps:determining a position of the instrument relative to the fulcrum；measuring by means of the 6-DOF force/torque sensor a force and a torque exerted onto the effector unit by the first end of the instrument； andcalculating by means of the principle of superposition an estimate of a force exerted onto the second end of the instrument based on the determined position, the measured force and the measured torque.
