Dual Z-Rod Pipetting Tool Docking for Space and Collision Control
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Solution Overview
Problem
Existing pipetting systems face issues with increased costs, space requirements, operational inefficiencies, and contamination risks due to the use of disposable and fixed tips, as well as interference between equipment components.
Innovation Solution
A method and system that utilizes a collaborative interaction between two Z-rods, one with a fixed tip and the other with a tool such as a downholding means, piercing means, or receptacle, allowing tools to be placed on standby on a docking station when not in use, reducing the number of tools deployed and minimizing collisions, while enhancing operational precision and throughput.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple tools are deployed simultaneously to assist the pipetting needle, then operational versatility is improved, but device complexity and space requirements increase
Solution Approach 1:
The system dynamically configures tools by attaching them to the manipulator arm only when needed for specific operations, rather than having all tools permanently mounted. This allows the system to adapt its capabilities to match the immediate task requirements, reducing complexity while maintaining versatility.
Solution Approach 2:
The tool system is segmented into modular components that can be independently attached and detached from the manipulator arm. Each tool (downholding means, piercing means, receptacle) functions as a separate module that can be selectively deployed, allowing versatility without permanent complexity.
2Adaptability or versatility
If multiple tools are permanently mounted on the manipulator arm, then operational capabilities are improved, but the risk of collisions between components increases
Solution Approach 1:
Tools are dynamically positioned on the manipulator arm based on operational needs rather than being fixed in permanent positions. This dynamic configuration reduces the likelihood of collisions by optimizing tool placement and movement paths for each specific task.
Solution Approach 2:
The system performs preliminary planning of tool attachment and movement sequences to avoid potential collisions before operations begin. Tools are attached and positioned in advance with collision avoidance considerations, ensuring safe operation throughout the workflow.
3Ease of operation
If disposable tips are used in continuous operation, then operational convenience is improved, but costs increase due to continuous replacement needs
Solution Approach 1:
The system uses disposable tips only when necessary for specific operations that require them, rather than continuously replacing them. By selectively deploying disposable tips only when needed and using fixed tips for routine operations, the system maintains operational convenience while significantly reducing the cost of continuous tip replacement.
4Loss of substance
If fixed tips are used instead of disposable tips, then costs are reduced, but piercing capacity is lost
Solution Approach 1:
The system employs a universal tool platform that can accommodate both fixed tips for routine operations and piercing means for membrane penetration tasks. This multi-functional approach allows the system to use cost-effective fixed tips while maintaining the capability to perform piercing operations when required, eliminating the trade-off between cost and versatility.
Data Source
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AI summary
A method of operating a pipetting system (10) comprising a worktable (12), at least one manipulator arm (18), and first and second Z-rods (20',20") arranged on the least one manipulator arm (18), comprises the steps of receiving by said second Z-rod (20") a tool (24) via an adapter attached to said second Z-rod (20"), wherein said tool (24) comprises a central axis and a working area, said working area being defined by a circle which center is located on the central axis of said tool (24) and which radius being a distance between said central axis and a largest extension of an outline of the tool (24) in a projection.