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Programmable joint simulator with force and motion feedback

  • US 20040254771A1
  • Filed: 07/30/2004
  • Published: 12/16/2004
  • Est. Priority Date: 06/25/2001
  • Status: Active Grant
First Claim
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1. A programmable joint simulator with force and movement feedback for duplicating modifiable biomechanical properties of human and animal body segments with joints, whereby the joint simulator has the following features:

  • a body model, which essentially has the shape and hardness properties of the body segment to be simulated controllable drive elements, which are coupled mechanically with the body model, in such a way that movements of the body model, which correspond to real biomechanical joint movements of the body segment to be simulated, can be effected by controlling the drive elements, a sensor arrangement for detecting forces and movements, which are introduced by an examining person with his/her hands on body model whereby the sensors of sensor arrangement are arranged in the kinematic chain between the body model and the drive elements and/or on the drive elements themselves and a programmable control device having a computer for controlling the drive elements, whereby the control device is configured such that the measured signals processed by the sensor arrangement are introduced into the computer, in which a simulation program is stored, which, in cooperation with the control device, causes the body model to move by means of the drive elements when external force is applied, in such a way that the biomechanical joint properties of the natural body segment are simulated and are sensed by the examining person as a biomechanical property of the respective natural body segment.

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