Magnetic Robot With Rotatable Work Member for Thrombus Steering
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Solution Overview
Problem
Existing magnetic catheters face limitations in effectively navigating complex blood vessels and performing tunneling treatments due to insufficient force reach at the catheter end, hindering effective thrombus removal and adjustment of posture and position.
Innovation Solution
A magnetic robot design with a rotatable work member and adjustable posture and position, featuring a housing part with a connection hole and a fastening part with a separation prevention mechanism, allowing for enhanced steering and thrombus fragmentation within blood vessels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a magnetic catheter is used for tunneling treatment in complex blood vessels, then the treatment can be performed remotely with magnetic control, but the force cannot reach the end of the catheter effectively
Solution Approach 1:
The catheter is divided into multiple sections with different structural characteristics. The front portion has a smaller outer diameter and higher flexibility to navigate complex vessels, while the rear portion provides structural support and magnetic actuation. This segmentation allows force to be effectively transmitted to the front working end.
Solution Approach 2:
The patent introduces a radial dimension for magnetic field application, where external magnets apply force not only axially but also radially to steer the catheter tip. This multi-dimensional control enables effective force transmission and steering capability simultaneously.
2Ease of manufacture
If the catheter structure is simplified for easy manufacturing, then production cost decreases, but the ability to adjust work member position and posture is reduced
Solution Approach 1:
The work member is designed with dynamic positioning capability through magnetic coupling. The position and orientation of the work member can be adjusted by changing the magnetic field configuration, allowing the same catheter structure to adapt to different treatment requirements without complex mechanical adjustment mechanisms.
Solution Approach 2:
Complex mechanical adjustment mechanisms are replaced with magnetic field-based control. The work member's position and posture are controlled by external magnetic fields rather than mechanical linkages, simplifying the catheter structure while maintaining high adaptability.
3Ease of operation
If the connection hole diameter is increased to allow work member insertion, then assembly is easier, but the structural integrity and precision of the connection is reduced
Solution Approach 1:
A magnetic coupling mechanism serves as an intermediary between the connection hole and work member. The magnetic field enables precise alignment and secure connection without requiring tight mechanical tolerances, as the magnetic force guides and holds the work member in the correct position.
Solution Approach 2:
The connection mechanism utilizes magnetic field parameters (strength, direction, distribution) to achieve precise positioning. By changing magnetic field parameters rather than relying solely on mechanical dimensions, the system achieves both easy insertion and high precision connection.
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 effective navigation and thrombus removal by adjusting the work member's posture and position, improving steering ability and reducing load on blood vessels during procedures.
Implementation Method 1
Magnetic catheters are driven with a magnetic torque and a magnetic force by an external magnetic field generated by a magnetic driving system
Implementation Method 2
Magnetic catheters are driven with a magnetic torque and a magnetic force by an external magnetic field generated by a magnetic driving system
Data Source
AI summary
The present invention relates to a magnetic robot. The magnetic robot according to one embodiment of the present invention comprises: a body; and a work member which is connected to the body so as to be positioned in an anterior region of the body, and which is provided to be rotatable around a longitudinal center as an axis, wherein the body comprises: a housing part provided to have a preset length in the forward-backward direction so as to form an inner space; and a connection part positioned at a front end portion of the housing part so as to be provided to protrude toward the longitudinal central axis of the housing part, and thus has a connection hole formed at the inner center thereof, and the work member comprises: a body part which is provided to have a preset length in the forward-backward direction, and which has at least one region provided as a magnetic body; and a fastening part provided to extend backward from the rear end of the body part so as to be inserted into the connection hole.