REPRESENTED BY THE EUROPEAN COMMISSION;THE EUROPEAN ATOMIC ENERGY COMMUNITY (EURATOM)
发明人:
RUIZ MORALES, EMILIO,CORRECHER SALVADOR, CARLOS
申请号：
CA2870343
公开号：
CA2870343C
申请日:
2007.10.25
申请国别(地区):
CA
年份:
2016
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； and - calculating 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.programmable computing device. The invention also concerns a software program product comprising program code stored on a machine-readable storage medium which, when running on programmable computing device or loaded onto a programmable computing device, causes the programmable computing device to perform all the steps of any one of the above embodiments of the method.
