This document summarizes research on medical robots, including modeling, path planning, and motion control. It describes how medical robots are modeled as 6 degree of freedom manipulators to perform surgical operations. Path planning algorithms discussed include the probabilistic roadmap method and fuzzy logic approaches. The probabilistic roadmap method constructs a graph of collision-free paths between random configurations. Fuzzy logic can be used to vary a robot's speed based on the number of obstacles detected. Overall the document provides an overview of different techniques for modeling, path planning, and motion control of medical robots.