Peripheral-Arm Surgical Robotic System for Camera and Display Positioning
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Solution Overview
Problem
Current robotic navigation systems in surgery are limited by inaccurate registrations, poor line of sight, passive guidance issues, single-arm limitations, and lack of visibility for surgeons and assistants, hindering system movement and adaptability during procedures.
Innovation Solution
A multi-arm surgical robotic system with integrated navigation and peripheral arms, allowing for simultaneous or sequential performance of surgical tasks, with motorized subsystems controlled by both system software and users, and featuring a moveable base station with on-board computer, display, camera, and synchronized surgical arms with seven degrees of freedom.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a single robotic arm is used for navigation, then the system structure is simple, but only one surgical action can be performed at a time
Solution Approach 1:
The robotic system is divided into multiple independent robotic arms, each capable of performing different surgical actions simultaneously. This segmentation allows parallel execution of multiple surgical tasks without increasing overall system complexity, as each arm operates semi-independently with its own control system.
Solution Approach 2:
Each robotic arm is designed with universal end-effectors that can be quickly exchanged to perform different surgical functions. This multi-functionality allows a single arm to handle multiple surgical instruments and procedures, maximizing the utility of each arm while maintaining system compactness.
2Reliability
If passive guidance is used, then the system is easier to operate, but patient movement and inability to actively move the system during procedure occur
Solution Approach 1:
The robotic arms transition from static passive guidance to dynamic active positioning during surgery. The system can be actively moved and repositioned intraoperatively to accommodate patient movement or changing surgical requirements, while maintaining precise positioning through real-time control systems that compensate for movements.
Solution Approach 2:
Real-time feedback from position sensors and navigation systems allows the robotic arms to actively adjust their positions during the procedure. This closed-loop control maintains positioning accuracy even when the system is moved or when patient anatomy shifts, resolving the contradiction between reliability and ease of operation.
3Measurement precision
If the robotic system is fixed in position, then positioning accuracy is maintained, but system movement is hindered intraoperatively and during transport
Solution Approach 1:
The robotic system incorporates movable bases with locking mechanisms that allow the entire system to be repositioned during surgery or transported between operating rooms. Once positioned, the bases lock to maintain stability and navigation accuracy during the surgical procedure, providing both mobility and positional stability as needed.
Solution Approach 2:
The system is pre-positioned and locked into place before the surgical procedure begins to ensure measurement precision. The movable bases allow for preliminary setup and positioning adjustments, after which the system remains fixed during the actual surgery to maintain navigation accuracy, but can be quickly repositioned between procedures.
4Ease of operation
If surgeons and assistants are positioned to oversee the procedure, then visibility of the monitor is improved, but system complexity increases
Solution Approach 1:
The robotic arms are equipped with integrated display systems that can serve multiple functions: providing surgical navigation information, displaying patient anatomy, showing instrument positions, and offering procedural guidance. This multi-functionality consolidates multiple display needs into a single integrated system, improving surgeon visibility without proportionally increasing system complexity.
Data Source
AI summary
Devices, systems, and methods for a robot-assisted surgery. A surgical robotic system with integrated navigation and multiple surgical arms may assist a user with one or more surgical procedures. In addition to the multiple surgical arms, the robotic system may also have peripheral arms to position a navigation camera and surgeon displays. The robotic system is collaborative to allow for easy integration into procedural workflows, for example, to install pedicle screws, interbody implants, or other surgical devices.


