发明名称 |
FORCE ESTIMATION FOR A MINIMALLY INVASIVE ROBOTIC SURGERY SYSTEM |
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. |
申请公布号 |
CA2870343(C) |
申请公布日期 |
2016.11.29 |
申请号 |
CA20072870343 |
申请日期 |
2007.10.25 |
申请人 |
THE EUROPEAN ATOMIC ENERGY COMMUNITY (EURATOM), REPRESENTED BY THE EUROPEAN COMMISSION |
发明人 |
RUIZ MORALES, EMILIO;CORRECHER SALVADOR, CARLOS |
分类号 |
A61B34/30;A61B34/35;B25J3/00;B25J19/02 |
主分类号 |
A61B34/30 |
代理机构 |
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代理人 |
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主权项 |
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