Surgical Robot Dynamic Control for Heat and Bandwidth Management
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Solution Overview
Problem
Surgical robotic systems face challenges with heat generation due to power consumption, which reduces system life expectancy and increases the risk of failure, as well as bandwidth and storage issues during tele-surgical implementations.
Innovation Solution
A surgical robotic system with a computer that dynamically adjusts the robotic arm's range of motion, speed limit, and data transmission rate based on the phase or task of the surgical procedure, optimizing performance and resource utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the surgical robotic system operates continuously with high power consumption, then the surgical tasks can be performed efficiently, but heat is generated which reduces system life expectancy and increases failure risk
Solution Approach 1:
The patent implements dynamic adjustment of system features including range of motion, speed limits, and data transmission rates based on the phase or task of the surgical procedure. This allows the system to optimize performance for each surgical phase while reducing power consumption and heat generation during less critical phases, thereby resolving the contradiction between productivity and reliability
Solution Approach 2:
The system changes operational parameters such as speed limits, range of motion, and data transmission rates according to the surgical phase. By adjusting these parameters dynamically, the system maintains high efficiency when needed while reducing power consumption and heat generation during other phases, thus improving both productivity and reliability
2Loss of information
If the system transmits data at high rates during all surgical phases, then complete surgical data is captured, but bandwidth is excessively consumed which limits tele-surgical implementations
Solution Approach 1:
The patent dynamically adjusts the data transmission rate based on the surgical phase or task being performed. During critical phases such as dissection and suturing, high transmission rates ensure complete data capture, while during less critical phases or when the user is disengaged, transmission rates are reduced to optimize bandwidth utilization and enable tele-surgical implementations
3Productivity
If the robotic arm operates at high speed throughout the procedure, then surgical efficiency is improved, but safety risk increases during critical tasks
Solution Approach 1:
The system dynamically adjusts speed limits based on the surgical phase or task. During initial dissection, higher speed limits improve efficiency, while during safety-critical tasks, the speed limits are automatically reduced to minimize safety risks, thus resolving the contradiction between productivity and reliability
Data Source
AI summary
A surgical robotic system includes a robotic arm, a surgical console, and a computer. The robotic arm includes a surgical instrument and the surgical console includes a handle communicatively coupled to the robotic arm or the surgical instrument. The computer is configured to determine a phase or a task of a surgical procedure based on at least one of sensor data or a user command to perform the task, change a range of motion of one or more joints of the robotic arm or the surgical instrument based on the phase or the task of the surgical procedure, change a speed limit of the robotic arm based on the phase or the task of the surgical procedure, and change a rate of wireless transmission of data based on the phase or the task of the surgical procedure.