Rod Assembly for Magnetizable Particle Extraction
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Solution Overview
Problem
Existing rod assemblies for extracting magnetizable particles from solutions are limited in their ability to effectively handle small particles due to restricted magnetic field distribution and surface area, making it difficult to efficiently purify and collect magnetizable particles with diameters in the range of several hundred nanometers.
Innovation Solution
A rod assembly with a guide element and a magnet element that includes a plurality of rod magnets with opposing poles and spacer elements, allowing for an increased inhomogeneous magnetic field distribution across a larger surface area, enabling the effective extraction and collection of small magnetizable particles by moving the magnet element to a distal exposed position and utilizing a thin-walled cylindrical tube for enhanced magnetic field strength.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a simple rod assembly with a sealed sheath is used, then the device structure is simple, but the magnetic field distribution is restricted and the effective surface area for particle extraction is limited
Solution Approach 1:
The rod assembly is segmented into a guide element and a separate magnet element that can move independently within the guide element. This segmentation allows the magnet element to be positioned at different locations, including a distal exposed position, to maximize the effective surface area for particle extraction while keeping the overall device structure relatively simple.
Solution Approach 2:
The magnet element is designed to move along the longitudinal axis of the guide element, adding a dimensional aspect to the magnetic field distribution. By positioning the magnet element at a distal exposed position, the magnetic field is distributed across a larger surface area, effectively increasing the extraction area without significantly complicating the device structure.
2Productivity
If the magnet element is moved to a distal exposed position, then the effective area for particle accumulation is increased, but the device operation becomes more complex
Solution Approach 1:
The magnet element is designed to be movable within the guide element, allowing dynamic adjustment of its position. This dynamic capability enables the magnet element to be moved to a distal exposed position for enhanced particle extraction efficiency. The guide element provides guidance and constraints, making the operation manageable despite the increased complexity.
Solution Approach 2:
The guide element acts as an intermediary between the actuation mechanism and the magnet element. It provides a structured path for the magnet element to move along and ensures proper positioning, thereby facilitating the complex operation of moving the magnet element to the distal exposed position while maintaining control and precision.
3Ease of manufacture
If a thin-walled sheath is used, then the manufacturing cost is reduced, but the magnetic field strength may be compromised
Solution Approach 1:
The magnetic function is extracted from the sheath structure and concentrated in a separate magnet element. This allows the use of a thin-walled, cost-effective sheath material while maintaining strong magnetic field strength through the dedicated magnet element. The magnet element can be made of high-performance magnetic materials without the constraint of sheath material limitations.
Solution Approach 2:
The rod assembly uses a composite structure combining a thin-walled sheath material (for cost-effectiveness) with a separate magnet element (for magnetic field strength). This composite approach allows each component to be optimized for its specific function, achieving both low manufacturing cost and high magnetic field strength.
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 solution provides a higher effective area for the accumulation of small magnetizable particles, improving their purification and collection efficiency compared to prior art, and allows for the use of thinner, less expensive sheaths without compromising magnetic field strength.
Implementation Method 1
The magnet element is arranged at a distal end portion of the at least one rod element. The magnet element is also movable to a distal magnet element position. The distal magnet element position is located at the distal end portion of the at least one guide element.
Implementation Method 2
The magnetic attraction enables transport of the magnetizable particle possible from the solution and into further cavities.
Data Source
AI summary
A rod assembly for the extraction of magnetizable particles from solutions is described. The rod assembly includes at least one guide element. A rod element is insertable into the at least one guide element and moveable in a direction substantially parallel to the at least one guide element. A magnet element is moveable to a distal magnet element position; wherein the distal magnet element position is located on a distal end section of the at least one guide element; wherein the at least one guide element includes an opening at a distal end. A method for the extraction of magnetizable particles from solutions is also described, as well as a magnet element for the extraction of magnetizable particles from solutions.