Surgical Robot Shaft Assembly Rotation Mechanism
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Solution Overview
Problem
Conventional surgical robots with straight robot arms are not easily applicable to narrow affected areas, such as the occipital region, due to limited space and the cumbersome process of changing surgical equipment positions, which requires detachment and reattachment.
Innovation Solution
A surgical robot with a shaft assembly that integrates flexible shafts capable of translation, rotation, and bending motions, allowing for position changes of surgical equipment within the affected area by rotation without detachment, utilizing a curved frame and housing with a rotating mechanism to adjust the position of surgical instruments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If straight robot arms with detachable surgical equipment are used, then the surgical robot can be easily applied to wide affected areas such as the abdominal cavity, but it cannot be easily applied to narrow affected areas such as the occipital region
Solution Approach 1:
Multiple flexible shafts with different surgical equipments are integrated into a single shaft assembly that rotates together as one unit. This merging allows the surgical robot to handle multiple instruments simultaneously without requiring separate insertion and detachment operations for each instrument, thereby improving ease of operation in narrow affected areas while maintaining adaptability to different surgical sites
2Adaptability or versatility
If multiple surgical equipments are inserted into the narrow space of the occipital region, then comprehensive surgical operations can be performed, but every time the position of the surgical equipment is changed, the operation of extracting and inserting these surgical equipments becomes very cumbersome
Solution Approach 1:
Multiple flexible shafts are combined into a single rotating shaft assembly, allowing all surgical equipments to be repositioned simultaneously through one rotation operation rather than requiring individual insertion and extraction for each instrument, thereby reducing time loss and operational complexity
Solution Approach 2:
The shaft assembly is designed to rotate dynamically within the curved frame, enabling continuous adjustment of surgical equipment positions during the surgical procedure. This dynamic repositioning capability allows surgeons to adapt instrument orientations in real-time without stopping the procedure for instrument changes
3Volume of moving object
If the surgical robot is miniaturized to fit the narrow occipital region, then it can access the affected area, but the straight robot arm structure according to the related art becomes insufficient
Solution Approach 1:
The robot arm is transformed from a straight structure to a curved flexible shaft assembly that can navigate through the oral cavity and reach the occipital region. The curved configuration allows the miniaturized robot to access narrow anatomical passages while maintaining the capability to perform comprehensive surgical operations at the target site
Data Source
AI summary
Provided is a surgical robot for changing a position of surgical equipment capable of selectively using the surgical equipment appropriate for affected areas by rotating the surgical equipment instead of changing a position of the surgical equipment by detachment, by integrating a plurality of flexible shafts having a surgical equipment attached to a leading end thereof to configure a single shaft assembly and allowing each flexible shaft to perform translation, rotation, and bending motions and rotating the shaft assembly. According to the embodiment of the present invention, the surgical robot for changing a position of surgical equipment includes: a housing 200 coupled with a rear end of the frame fixing part 100; a curved frame 300 coupled with a leading end of the frame fixing part 100; and a shaft assembly 400, wherein the shaft assembly 400 penetrates through the curved frame 300 within the housing 200 to be exposed to a leading end of the curved frame 300 and rotates within the curved frame 300.