Surgical Robot Haptic Feedback Using Arm-Mounted Accelerometers

The patent implements a feedback mechanism by using accelerometers on the robot arm to detect interactions with surgical objects, generating vibration signals that are transmitted to the user input interface. This allows the surgeon to feel tactile feedback about physical interactions during surgery, resolving the information loss problem while maintaining surgical precision

The patent replaces complex mechanical feedback systems with electronic sensors (accelerometers) and signal processing. Instead of using expensive force sensors and motors, the system uses accelerometers to detect interactions and generates vibration signals electronically, achieving tactile feedback with a simpler, more cost-effective approach

The patent uses accelerometers, which are relatively inexpensive sensors compared to force sensors, to detect interactions. The system processes these signals to generate tactile feedback, achieving acceptable feedback accuracy at a lower cost. This approach sacrifices some measurement precision but maintains functional effectiveness while reducing system cost

The patent creates a simplified copy of the physical interaction experience by using vibration signals to simulate tactile feedback. Instead of directly measuring complex forces, the system detects interactions through acceleration changes and reproduces the sensation through vibrations, providing a cost-effective approximation of true tactile feedback