Multi-Cassette Electrotransfer Instrument with Independent Power Control
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Solution Overview
Problem
Existing electroblotting techniques for transferring electrophoretically separated species from slab gels to membranes lack flexibility and efficiency in handling multiple cassettes simultaneously and independently, with safety concerns due to exposed electrical contacts.
Innovation Solution
A multi-cassette electrotransfer instrument with battery contact technology and automatic power control, allowing independent operation of one or multiple cassettes with a compact design and internal power supply, ensuring safe and efficient electrotransfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple cassettes are handled simultaneously in existing electroblotting techniques, then throughput is improved, but device complexity and safety risks increase due to exposed electrical contacts
Solution Approach 1:
The instrument is divided into multiple independent cassette slots, each capable of holding and processing a separate cassette simultaneously. Each slot has its own electrical contacts and control circuitry, allowing independent operation of multiple cassettes without increasing overall system complexity. This segmentation enables parallel processing while maintaining simple, modular architecture.
Solution Approach 2:
Battery-style electrical contacts serve as intermediaries between the power supply and the cassettes. These contacts are enclosed within the instrument housing and only engage with cassette contacts when properly inserted, providing safe electrical connection without exposing live contacts to the user. The intermediary mechanism includes automatic relay control that activates power only when cassettes are correctly positioned.
2Reliability
If battery contact technology with automatic power control is implemented, then safety is improved, but device complexity increases
Solution Approach 1:
The automatic relay circuitry is pre-configured to detect cassette insertion and automatically activate or deactivate power supply before the user can access electrical contacts. This preliminary action ensures that power is only present when cassettes are properly positioned, eliminating the need for manual power control and reducing safety risks without requiring complex user interfaces.
Solution Approach 2:
The instrument automatically detects the presence and position of cassettes and self-regulates power distribution to each slot. The system monitors cassette insertion status and independently controls power delivery to each cassette, eliminating the need for manual intervention and reducing operational errors while maintaining simple user interaction.
3Area of stationary object
If a compact design with internal power supply is used, then bench space is minimized, but manufacturing complexity increases
Solution Approach 1:
The power supply, control circuitry, and cassette processing functions are merged into a single integrated instrument housing. The internal power supply eliminates the need for external power units, and the compact arrangement of components within the housing reduces bench space requirements. This consolidation simplifies the overall system architecture despite increased integration demands during manufacturing.
Solution Approach 2:
The instrument is designed with universal cassette compatibility, where a single housing and power supply system can accommodate multiple types of cassettes through standardized interfaces. The electrical contacts and control circuitry are configured to work with various cassette designs, reducing the need for multiple specialized instruments and simplifying manufacturing through standardized components.
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
Enables flexible and efficient electrotransfer of species across multiple cassettes with enhanced safety features, minimizing bench space and allowing precise control over transfer conditions.
Implementation Method 1
an electric current is passed through both the gel and the membrane in a transverse direction, thereby transferring the species
Implementation Method 2
the influence of the electric field generated by the electrodes
Data Source
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AI summary
Electrotransfer is performed in an instrument that receives electroblotting cassettes and that contains an integrated power supply, controls, and a display that allows the user to monitor and control each of a plurality of cassettes individually through electrical contacts within the housing that mate with corresponding electrical contacts on the cassettes.