Vacuum Aspirator for Maize Embryo Extraction
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Solution Overview
Problem
Current methods for extracting immature maize embryos are slow, labor-intensive, and prone to damaging the fragile embryos, limiting the efficiency and speed of the process for monocot plants like maize.
Innovation Solution
A method and apparatus using a pressurized fluid stream to rapidly and efficiently isolate immature maize embryos from maize seeds, allowing for high-throughput processing and minimizing damage, which includes a dispenser system to direct the fluid stream at the seeds and a collection system to gather the embryos, enabling simultaneous extraction of multiple embryos.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual hand extraction with scalpel is used, then embryo extraction can be performed with simple equipment, but the process is slow and labor-intensive
Solution Approach 1:
The patent employs a vacuum aspirator system that uses vacuum pressure to automatically extract immature embryos from maize kernels. The vacuum force draws embryos through a needle into a collection vial, replacing manual scalpel work with pneumatic suction to achieve faster, automated extraction while maintaining equipment simplicity
Solution Approach 2:
The system allows the vacuum aspirator to perform the extraction work automatically without requiring manual manipulation of each embryo. The operator simply attaches the apparatus to the kernel, and the vacuum mechanism itself completes the extraction process, reducing labor intensity and increasing throughput
2Productivity
If vacuum aspirator is used to automate embryo excision, then extraction speed is slightly increased, but the process remains excessively slow and tedious
Solution Approach 1:
The patent extracts only the essential function needed for embryo removal - the vacuum suction mechanism - and applies it directly to the kernel surface. By focusing solely on the extraction action rather than attempting to replicate complex manual manipulation, the system achieves rapid embryo removal without unnecessary procedural steps
Solution Approach 2:
The patent replaces the mechanical scalpel-cutting action with a vacuum-based pneumatic system. This substitution eliminates the need for precise manual cutting and embryo manipulation, allowing multiple embryos to be extracted quickly through suction alone, dramatically reducing total extraction time
3Reliability
If manual extraction methods are used, then embryo damage can be minimized through careful handling, but the process requires considerable hand-eye coordination and dexterity
Solution Approach 1:
The vacuum aspirator uses controlled vacuum pressure to gently draw embryos through a needle without mechanical cutting or crushing. This pneumatic method maintains embryo integrity while eliminating the need for skilled manual manipulation, making the process both reliable and easy to operate
Solution Approach 2:
The vacuum needle acts as an intermediary between the embryo and the collection vial. Instead of direct manual contact that requires dexterity, the needle-transmitted vacuum force performs the extraction, reducing the skill requirement while maintaining embryo viability through gentle, controlled suction
4Productivity
If vacuum suction is applied to extract embryos, then extraction speed increases, but embryo fragility remains a limiting factor
Solution Approach 1:
The patent optimizes the vacuum pressure parameters to achieve sufficient suction force for rapid extraction while remaining below the threshold that would damage fragile embryos. By carefully controlling the vacuum level, the system maintains high extraction rates without compromising embryo integrity
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 method significantly increases the efficiency of embryo extraction, reducing processing time and embryo damage, allowing for the rapid isolation of large numbers of viable embryos that can be used for genetic transformation and tissue culture.
Implementation Method 1
applying a stream of fluid to a seed, wherein the stream of fluid displaces the embryo from the seed
Data Source
Figure 1A
Figure 1B
Figure 1C
AI summary
The invention relates to rapid and efficient methods and apparatuses for displacing target plant materials from seeds. In one embodiment, the invention relates to methods and apparatuses for displacing embryos from maize seeds. In yet another embodiment, the displaced embryos can be propagated and regenerated into plants.