Concave Rotor Recesses for Safe Layperson Centrifuge Operation
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Solution Overview
Problem
Centrifuges are large, expensive, and pose safety risks for untrained operators due to complex rotor assemblies and high rotational speeds, necessitating a design that can be safely operated by laypersons without additional mechanical means.
Innovation Solution
A centrifuge with a rotor featuring recesses and protrusions that create g-forces to retain specimens, a lid mechanism preventing incorrect insertion, and a brake mechanism to prevent rotor rotation if the lid is open, ensuring safe operation without additional mechanical means.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional rotor assemblies with buckets, lids, and mechanical retention means are used, then specimen retention during centrifugation is reliable, but device complexity and operator training requirements increase
Solution Approach 1:
The patent removes traditional mechanical retention means (buckets, lids, clips) from the rotor assembly. Instead, the rotor surface itself is shaped with concave recesses that directly retain specimens through centrifugal force, extracting unnecessary components and simplifying the overall device structure while maintaining reliable specimen retention
Solution Approach 2:
The patent changes the geometric parameters of the rotor surface by creating specific concave recesses with optimized dimensions and orientations. These geometric modifications enable the rotor to retain specimens through g-forces alone, transforming the retention mechanism from mechanical to physical/centrifugal without adding complexity
2Productivity
If high rotational speeds are used for effective centrifugation, then centrifugation performance is improved, but safety risks for untrained operators increase
Solution Approach 1:
The patent designs the rotor with concave recesses that securely hold specimens before centrifugation begins. This pre-positioning and secure retention prevents specimens from becoming projectiles during high-speed rotation, cushioning against potential safety hazards while maintaining effective centrifugation performance
Solution Approach 2:
The concave recesses act as an intermediary between the rotor and specimens, providing a secure interface that prevents direct contact between高速 rotating rotor and specimens. This intermediary structure eliminates safety risks associated with untrained operators while preserving centrifugation effectiveness
3Reliability
If multiple components (buckets, lids, inserts) are used in the rotor assembly, then specimen retention is secure, but ease of operation by laypersons deteriorates
Solution Approach 1:
The patent merges multiple separate components (buckets, lids, retention mechanisms) into a single integrated rotor structure with built-in concave recesses. This consolidation eliminates the need for operators to assemble multiple parts, making the device easy to operate by laypersons while maintaining secure specimen retention through the integrated geometric design
4Manufacturing precision
If traditional rotor designs requiring precise assembly are used, then manufacturing precision can be maintained, but ease of manufacture deteriorates
Solution Approach 1:
The patent segments the rotor into a simple monoblock structure with integrated concave recesses, eliminating the need for precise assembly of multiple components. This segmentation approach simplifies manufacturing while maintaining the precision needed for proper specimen retention, as the recesses are formed directly in the rotor material rather than assembled from separate parts
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 design allows safe operation by laypersons, reduces size and cost, and simplifies assembly, while ensuring specimens are securely held during centrifugation.
Implementation Method 1
at least one recess, at least one protrusion or a combination of the at least one recess or the at least one protrusion defining a concave arrangement that, during centrifugation, creates g-forces that serve to retain the specimen in the rotor
Data Source
AI summary
A centrifuge including a rotor having at least one recess, at least one protrusion or a combination of the at least one recess or the at least one protrusion defining a concave arrangement, each of the at least one recess, the at least one protrusion or the combination of the at least one recess or the at least one protrusion adapted to receive a corresponding specimen container.