Movable Magnetic Field Layout for Precise Microrobot Control
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Solution Overview
Problem
Conventional magnetic drive systems are inefficient due to fixed electromagnet arrangements, which fail to consider lesion position and characteristics, leading to restricted operation areas and limited applicability, and are bulky, hindering their use in various medical applications.
Innovation Solution
A magnetic drive system comprising first and second magnetic field generation units with a moving module to adjust their position and distance, optimizing the operation area based on the lesion, allowing close contact with the body and tracking microrobot movements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional magnetic drive systems use fixed position and arrangement of electromagnets, then the system structure is simple, but the operation area cannot be optimized according to lesion position and characteristics
Solution Approach 1:
The patent applies the dynamics principle by making the electromagnets movable rather than fixed. The moving module enables the first and second electromagnets to dynamically adjust their positions and distances according to different lesion locations and sizes, transforming the static magnetic drive system into a dynamic one that can adapt to various surgical scenarios.
Solution Approach 2:
The patent segments the magnetic drive system into multiple independent electromagnets (first and second electromagnets) that can be individually positioned and controlled. This segmentation allows each electromagnet to be independently adjusted to optimize the magnetic field distribution for different lesion characteristics.
2Adaptability or versatility
If conventional magnetic drive systems use fixed electromagnet arrangement, then the device is easier to manufacture, but the system is heavy and bulky with restricted storage and placement
Solution Approach 1:
The moving module enables dynamic reconfiguration of the electromagnet arrangement, allowing the system to achieve multiple operation configurations without requiring a large, heavy fixed structure. This dynamic capability reduces the overall system weight while maintaining versatility.
Solution Approach 2:
The patent designs the magnetic drive system with universal applicability through the moving module that can position electromagnets for different lesion types and locations. This multi-functional design eliminates the need for multiple specialized heavy devices, achieving versatility with reduced weight.
3Measurement precision
If conventional magnetic drive systems cannot track microrobot movements, then the system is simpler to control, but the control precision and real-time adjustment capability are insufficient
Solution Approach 1:
The patent implements a feedback control mechanism where the position of the microrobot is continuously monitored and used to adjust the electromagnet positions in real-time. This feedback loop enables precise tracking and control of the microrobot throughout the surgical procedure.
Solution Approach 2:
The magnetic drive system automatically adjusts its configuration based on real-time microrobot position information, enabling self-service control without requiring complex external intervention. The system autonomously optimizes its state to maintain precise microrobot control.
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
The system enables precise control of microrobots by adjusting the operation area and magnetic field strength to match the target, facilitating real-time tracking and continuous control of microrobots within the body.
Implementation Method 1
a first magnetic field generation unit; a second magnetic field generation unit disposed under the first magnetic field generation unit in a Z-axis direction with an operation area interposed therebetween to generate a magnetic field in the operation area
Implementation Method 2
A magnetic robot equipped therein with a magnet is driven after receiving magnetic torque and magnetic force by an external magnetic field
Data Source
AI summary
A magnetic drive system is disclosed. The magnetic drive system comprises: a first magnetic field generation unit; a second magnetic field generation unit which is disposed under the first magnetic field generation unit in a Z-axis direction with an operation area interposed therebetween, and generates a magnetic field in the operation area in combination with the first magnetic field generation unit; and a moving module for moving at least one of the first magnetic field generation unit and the second magnetic field generation unit.