Radiolucent Limb Positioner with Segmented Adjustable Support
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Solution Overview
Problem
Current devices for positioning a patient's limb during medical procedures lack adjustability, obstruct surgical access, and are difficult to sterilize and transport.
Innovation Solution
A device with a planar base structure and adjustable limb support structures that allow 360° access, easy disassembly, and sterilization, featuring rotatable and telescoping components made from radiolucent materials to accommodate various surgical needs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a limb support device is made adjustable to accommodate different patient needs and surgical procedures, then the adaptability and versatility improve, but the device complexity increases
Solution Approach 1:
The device is divided into modular components including a base structure, multiple raised supports, and limb support bars that can be independently adjusted and positioned. This segmentation allows each component to be optimized for specific functions while maintaining overall adjustability without excessive complexity
Solution Approach 2:
The device incorporates dynamic adjustment mechanisms allowing the raised supports and limb support bars to be repositioned during surgical procedures. This enables the device to adapt to different surgical needs while maintaining a relatively simple base structure
2Ease of operation
If a limb support device provides full 360° access to the limb for surgical procedures, then the ease of operation improves, but the device complexity increases
Solution Approach 1:
The support structure is segmented into multiple raised supports and limb support bars that can be independently positioned around the limb, providing 360° access without requiring a complex enclosing structure
Solution Approach 2:
The device design extracts only the essential support elements needed for limb positioning, removing unnecessary structural components that would obstruct surgical access while maintaining stability and adjustability
3Ease of operation
If a limb support device is designed to be easily disassembled and collapsed for transport and storage, then the ease of operation improves, but the stability during use may worsen
Solution Approach 1:
The device is segmented into modular components connected by joints that allow easy disassembly for transport while maintaining structural integrity during use. The base structure, raised supports, and limb support bars can be separated and reconfigured as needed
Solution Approach 2:
The device incorporates dynamic connection mechanisms that provide rigid stability during surgical procedures but allow easy disconnection and collapse for transport, transitioning between stable and portable states as required
4Measurement precision
If a limb support device uses radiolucent materials for compatibility with medical imaging, then the measurement precision of imaging improves, but the strength and durability may worsen
Solution Approach 1:
The device utilizes composite material construction combining radiolucent components (such as acrylic or polymer elements) with radiopaque components (such as metal fasteners or markers). This allows the main structural elements to be imaging-compatible while maintaining overall device strength through the composite construction
Solution Approach 2:
Different parts of the device use different material properties - radiolucent materials are used in areas requiring imaging transparency while radiopaque or stronger materials are used in load-bearing or connection points, optimizing both imaging compatibility and structural strength
Data Source
AI summary
The present invention is directed to methods, compositions and software for enriching low abundance alleles in a sample. It is directed in particular to the use of an excess amount of reference blocking sequence in an amplification reaction mixture in order to improve the enrichment efficiency, and reduce cycle time, of full COLD-PCR.