Robotic Surgical Tool Exchange Bases for Faster Procedures
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing robotic surgical devices face limitations in precision, require extensive training, cause increased separation between surgeon and surgical end-effectors, have large robotic units that constrain movement, and necessitate multiple tool exchanges during surgery, leading to increased risk and complexity.
Innovation Solution
The system allows for easy swapping of tool elements on a robot arm by using a pair of opposed tool exchange base segments, pulley elements, and electrical contact elements, enabling tool elements to be removably and replaceably mounted and locked into various positions without requiring replacement of the entire robot arm.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If traditional laparoscopic instruments are used with four axes of motion, then the surgical procedure is simple to implement, but the surgeon's ability to operate with precision and ease deteriorates
Solution Approach 1:
The robotic surgical system divides the surgical instrument into multiple segments with independent degrees of freedom. The robotic arm provides 7 degrees of freedom, allowing each segment to move independently, thereby enhancing surgical precision while maintaining ease of implementation through modular design
Solution Approach 2:
The system transitions from static four-axis laparoscopic instruments to dynamic robotic instruments with 7 degrees of freedom. The robotic arm can dynamically adjust its configuration during surgery, providing enhanced precision and flexibility while maintaining ease of operation through automated control
2Adaptability or versatility
If multiple incisions are made to address multiple locations within the abdominal cavity, then all necessary access points are obtained, but the complexity of the surgical procedure and risk to the patient increases
Solution Approach 1:
The robotic surgical system provides multi-functionality through a single incision approach. The 7-degree-of-freedom robotic arm can reach multiple locations within the abdominal cavity, eliminating the need for multiple incisions while maintaining the ability to address various surgical sites with a single unified system
3Extent of automation
If existing robotic surgical devices are used with increased separation between surgeon and end-effectors, then automated control is achieved, but the surgeon's understanding of motion and force applied deteriorates
Solution Approach 1:
The robotic surgical system incorporates feedback mechanisms that provide the surgeon with real-time information about motion and force applied at the end-effectors. This feedback loop maintains the surgeon's understanding and control while enabling automated operation, thereby improving reliability without sacrificing automation
4Adaptability or versatility
If tool elements are removed and replaced throughout surgery, then different surgical functions are achieved, but the surgical time is lengthened and the risk of complications increases
Solution Approach 1:
The robotic surgical system maintains continuity of useful action by keeping tool elements in place throughout the surgical procedure. The 7-degree-of-freedom robotic arm can perform multiple surgical functions with a single continuously positioned tool element, eliminating the need for repeated removal and replacement operations that would interrupt the surgical flow and increase risk
Data Source
AI summary
An end effector region device of a robot arm that forms part of a surgical robotic system that includes a tool base portion that is coupled to an end portion of the robot arm by a connector and first and second pulley elements that are rotatably coupled to the tool base portion. The device further includes first and second tool elements that are coupled together and can be removably and replaceably mounted to the pulley elements.