Surgical Robot Movable Arm Cannula Alignment
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Solution Overview
Problem
Current surgical robotic systems for minimally invasive surgery face limitations in precision and flexibility, particularly in navigating complex anatomical structures like the eye, where traditional robotic arms may not adequately support the surgeon's intent and instrument alignment.
Innovation Solution
A surgical robot with a movable surgical arm system attached to a base element on a surgical operating table, featuring a fixed and movable arm part with a cannula connection, reference arms, and manipulation arms that allow for precise positioning and alignment of surgical instruments through a cannula, enabling enhanced control and flexibility during procedures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional robotic arms are used for minimally invasive surgery, then the system structure is relatively simple, but precision and flexibility in navigating complex anatomical structures are insufficient
Solution Approach 1:
The robotic system is divided into multiple independent components: a base element, multiple reference arms, multiple manipulation arms, and a surgical arm with fixed and movable parts. Each segment can be independently positioned and controlled, allowing complex anatomical navigation through coordinated movement of individual segments rather than requiring a single complex robotic arm.
2Adaptability or versatility
If traditional robotic arms are used for minimally invasive surgery, then the device complexity is lower, but flexibility in navigating complex anatomical structures is limited
Solution Approach 1:
The system incorporates dynamic elements including the movable part of the surgical arm that can move relative to the fixed part, and multiple arms that can independently adjust their positions and orientations. This dynamic configuration allows the system to adapt to various anatomical structures and surgical requirements, providing flexibility without requiring an overly complex monolithic design.
Solution Approach 2:
The base element serves multiple functions by supporting the attachment of reference arms, manipulation arms, and the surgical arm. The reference arms and manipulation arms can work in coordination to provide both positioning and manipulation capabilities, creating a multi-functional system that can handle diverse surgical tasks with a unified platform.
3Ease of operation
If a movable surgical arm system with reference arms and manipulation arms is implemented, then precision and flexibility are enhanced, but device complexity increases
Solution Approach 1:
The reference arms act as intermediary elements between the base element and the surgical arm, providing stable reference frames and positioning support. The manipulation arms serve as intermediaries that translate surgeon input into precise movements of the surgical instrument. These intermediary components simplify the control task by breaking down the complex coordination requirements into manageable segments.
Data Source
AI summary
A surgical robot for performing minimally invasive surgery (e.g. in the eye) is provided. A cannula connection is positioned at a fixed surgical arm part and aligned with a movable surgical arm part movable with respect to the fixed surgical arm part. A surgical instrument can be mounted at the movable part. The surgical instrument can pass through the cannula connection. Reference arm(s) and manipulation arm(s) connect a base element with the fixed surgical arm part. The base element could have a surgical operating table attachment part to movably attach to a surgical operating table and rotating parts movably attached to the surgical operating table attachment part.