Roller Module Surgical Tool Control for Multi-Tool PCI Handling
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Solution Overview
Problem
Existing interventional assistant robots are limited to controlling a single surgical tool, making them unsuitable for complex procedures like chronic total occlusion lesions, and require extensive training and exposure to radiation for operators.
Innovation Solution
A surgical tool control apparatus with a housing and control assembly featuring multiple roller modules that can independently grip, move, and rotate multiple surgical tools, including a guide wire and balloon catheter, through a system of rollers, motors, and linkages, allowing simultaneous control of four surgical tools.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If existing interventional assistant robots are used, then single surgical tool control is achieved, but applicability to complex procedures is limited
Solution Approach 1:
The control assembly is segmented into multiple independent roller modules (first, second, third, fourth roller modules), each capable of independently gripping and controlling a surgical tool. This segmentation allows the system to handle multiple tools simultaneously, enabling complex procedures while maintaining modular simplicity in each individual module.
Solution Approach 2:
Each roller module is designed with universal functionality to grip, move, and rotate any surgical tool placed between its rollers. The standardized roller module design with drive shafts, rollers, and control mechanisms can handle different tool types (guide wires, catheters, etc.), making the system versatile for various interventional procedures.
2Adaptability or versatility
If multiple surgical tools are controlled simultaneously, then complex PCI procedures become applicable, but control system complexity increases
Solution Approach 1:
The control assembly is divided into multiple independent roller modules arranged side by side, each responsible for controlling one surgical tool. This segmentation allows simultaneous control of multiple tools while keeping each module's internal structure relatively simple and manageable.
Solution Approach 2:
Multiple roller modules are combined within a single control assembly housing, sharing common structural elements and control mechanisms. The modules work together as an integrated system to control multiple surgical tools simultaneously, achieving multi-tool capability without proportionally increasing overall system complexity.
3Reliability
If operator training is extended to achieve stable surgical procedures, then procedure quality improves, but training time and cost increase
Solution Approach 1:
The roller modules provide automated control of surgical tools through drive shafts and motors, reducing the skill gap between operators. The system's automated gripping, moving, and rotating functions perform complex manipulations that would otherwise require extensive operator training, thereby improving procedure stability while reducing training requirements.
4Ease of operation
If manual surgical tool manipulation is performed, then procedural flexibility is maintained, but radiation exposure to operators increases
Solution Approach 1:
The roller modules with their drive shafts, rollers, and motors automatically perform surgical tool manipulation functions (gripping, moving, rotating). This automation maintains procedural flexibility while eliminating the need for operators to manually manipulate tools in the radiation field, thereby reducing radiation exposure.
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 independent control of multiple surgical tools, facilitating complex PCI procedures and reducing operator training time and radiation exposure.
Implementation Method 1
a first surgical tool is gripped between the first roller module and the second roller module
Implementation Method 2
a vertical movement lead screw nut integrally rotating with the vertical movement pulley, and a vertical movement lead screw that is engaged with the vertical movement lead screw nut and has one side connected to the upper roller plate to vertically move the upper roller plate in accordance with rotation of the vertical movement lead screw nut
Implementation Method 3
a spline nut integrally rotating with the rotation drive pulley, and a spline shaft that is engaged with the spline nut and has one side connected to the roller member to rotate the roller member in accordance with rotation of the spline nut
Data Source
AI summary
A surgical tool control apparatus according to an embodiment comprises: a housing; and a control assembly including a frame connected to the housing, and a first roller module, a second roller module, and a third roller module which are installed on the frame, wherein the second roller module can horizontally move toward the first roller module so that a first surgical tool can be held between the first roller module and the second roller module, and can horizontally move toward the third roller module so that a second surgical tool can be held between the second roller module and the third roller module.