Sterile Adapter Transmission Interface for Fast Surgical Robot Alignment
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Solution Overview
Problem
Current methods for connecting a sterile adapter to a surgical instrument in surgical robots are cumbersome and require meticulous alignment, leading to inefficiencies in installation and calibration, particularly due to the need for multiple rotations to ensure accurate engagement of transmission discs.
Innovation Solution
A transmission and connection structure featuring cylindrical fitting portions and fool-proofing structures, such as transmission bosses and grooves, allows for pre-alignment and precise fitting of the sterile adapter and surgical instrument transmission members, enabling faster and more accurate connection without inaccuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional engagement methods with multiple engaging members and recesses are used, then the connection stability is improved, but the installation complexity and time consumption increase due to the need for meticulous alignment and multiple adjustments
Solution Approach 1:
The cylindrical fitting portion is designed to perform preliminary alignment between the sterile adapter and surgical instrument before the final engagement of the transmission discs. This preliminary action guides the relative positioning, ensuring that the subsequent engagement of engaging members and recesses occurs automatically without requiring meticulous manual alignment, thus reducing installation complexity while maintaining connection stability
Solution Approach 2:
The cylindrical fitting portion acts as an intermediary alignment mechanism between the sterile adapter and surgical instrument. It mediates the positioning process by providing a guiding interface that automatically establishes the correct relative orientation, eliminating the need for complex manual adjustment procedures while ensuring reliable engagement of the transmission components
2Measurement precision
If traditional engagement methods requiring multiple rotations are used, then the engagement accuracy is improved, but the installation time increases due to the need for multiple adjustments in vertical, left-right, and front-rear directions
Solution Approach 1:
The cylindrical fitting portion performs the preliminary alignment action before final engagement, automatically establishing the correct relative position and orientation between the sterile adapter and surgical instrument. This eliminates the need for multiple rotational adjustments in multiple directions, reducing installation time while ensuring engagement accuracy is achieved automatically through the guiding interface
Solution Approach 2:
The cylindrical fitting portion introduces an asymmetric guiding feature that automatically determines the correct orientation during insertion. This asymmetric design ensures that the sterile adapter and surgical instrument can only engage in the correct orientation, eliminating the need for multiple adjustments in left-right and front-rear directions, thus reducing installation time while maintaining engagement accuracy
Data Source
AI summary
The present disclosure discloses a transmission and connection structure for connecting a sterile adapter to a surgical instrument including a first transmission member configured to be provided at the sterile adapter and a second transmission member configured to be provided at the surgical instrument. The first transmission member and the second transmission member each include a fitting surface, and the fitting surface includes a transmission fitting portion and a cylindrical fitting portion. The cylindrical fitting portion has a central axis aligned with a rotation axis of the first transmission member as well as a rotation axis of the second transmission member.