Spine Surgery Assistant Robot Vibration-Free Linear Guide
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Solution Overview
Problem
Existing guide devices for spinal surgery lack the ability to accurately and uniformly transmit rotational force and are prone to vibration during linear movement of surgical tools, hindering precise spinal procedures like spinal fusion.
Innovation Solution
An assistant robot for spine surgery featuring a surgical tool support with a rotating body, a handle for operator control, and a driving member that enables automatic rotation and smooth linear movement of surgical tools, minimizing vibration through a gear-based transmission system and a linear guide mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a guide device is used to maintain the position of a surgical tool, then the direction guidance is improved, but the rotational force transmission becomes inaccurate and non-uniform
Solution Approach 1:
The guide device is segmented into distinct functional modules: a guide body for directional guidance, a rotating member for rotational movement, and a driving member for force transmission. This segmentation allows each component to be optimized for its specific function, resolving the contradiction between directional precision and rotational accuracy.
Solution Approach 2:
A driving member acts as an intermediary between the operator's manual rotation and the surgical tool's movement. This intermediary component transmits rotational force uniformly and accurately, eliminating the direct friction contact that caused inaccurate force transmission in traditional guide devices.
2Measurement precision
If a surgical tool moves linearly through a guide portion, then the directional guidance is maintained, but vibration is generated due to friction
Solution Approach 1:
The rotating member serves as an intermediary between the surgical tool and the guide body. By introducing this intermediate rotating component, the system eliminates direct frictional contact during linear movement, thereby preventing vibration while maintaining precise position control through the guide body's structural constraints.
3Ease of operation
If an operator manually rotates a surgical tool, then the tool can be positioned, but it is difficult to accurately and uniformly transmit rotational force
Solution Approach 1:
The driving member functions as a mechanical intermediary that the operator manipulates to rotate the rotating member. This intermediary mechanism converts the operator's manual input into uniform rotational motion, ensuring accurate force transmission while preserving operational flexibility.
Solution Approach 2:
The direct manual rotation of the surgical tool is replaced by a mechanical transmission system consisting of the driving member and rotating member. This substitution transforms the direct mechanical coupling into an indirect transmission system that ensures uniform and accurate rotational force delivery.
4Adaptability or versatility
If a guide device restricts the position of a surgical tool, then linear motion is allowed, but the device lacks additional functions for sophisticated surgical procedures
Solution Approach 1:
The guide device is designed with multi-functionality by integrating the guide body for positioning, the rotating member for rotational control, and the driving member for force transmission. This universal design enables the device to perform multiple surgical functions including precise positioning, controlled rotation, and vibration-free linear movement without significantly increasing overall structural complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables precise and vibration-free movement and automatic rotation of surgical tools, facilitating more sophisticated and accurate spinal surgeries by ensuring uniform force transmission and reducing friction-related issues.
Implementation Method 1
a gear provided on the outer circumference of the rotating body; a driving gear that rotates the gear
Implementation Method 2
a linear guide provided at the other side of the surgical tool support so as to move the surgical tool forward and backward
Data Source
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AI summary
The present invention relates to an assistant robot for spine surgery, including: a surgical tool support provided with a rotating body to which the surgical tool is penetratingly coupled; a handle provided at one side of the surgical tool support; a driving member configured to rotate the rotating body; and a linear guide provided at the other side of the surgical tool support so as to move the surgical tool forward and backward. Accordingly, the surgical tool can smoothly move without vibration when moving forward and backward, and can be automatically rotated with uniform force so as to enable sophisticated surgery.