Segmented Suction Tip for Microcell Handling
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Solution Overview
Problem
Existing suction tips face challenges in manufacturing microsized distal ends while maintaining a suitable proximal end size for attachment, making it difficult to selectively suck and handle microcells without damaging surrounding cells or causing liquid overflow.
Innovation Solution
A two-split type suction tip is designed, comprising a base tip and a sub-tip that are coupled by externally fitting the sub-tip's guide passage to the base tip's distal end, creating a suction path with a smaller suction port than the distal end opening, allowing for precise manipulation of microsized biological subjects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a combined type suction tip with a glass tube inserted into the distal end opening is used, then a storage portion for liquid overflow is created, but it becomes difficult to position and insert the glass tube without breaking it
Solution Approach 1:
The suction tip is divided into a base tip and a sub-tip that can be separately manufactured and then assembled. The base tip includes a distal end opening and a tubular passage, while the sub-tip includes a suction port and guide passage. This segmentation allows each component to be manufactured independently with appropriate sizes, avoiding the difficulty of inserting a pre-formed glass tube while maintaining structural integrity through the integrated design of the two parts.
2Manufacturing precision
If the distal end portion is molded to microsize to selectively suck microcells, then selective suction capability is improved, but it becomes very difficult to manufacture while maintaining a suitable proximal end size for attachment
Solution Approach 1:
The suction tip is segmented into a base tip with a relatively large distal end opening suitable for manipulation and attachment, and a sub-tip with a microsize suction port for selective cell suction. This allows the base tip to be manufactured with standard dimensions for easy handling and attachment, while the sub-tip provides the precise microsize suction port needed for biological applications, resolving the contradiction between manufacturing precision and ease of manufacture.
3Device complexity
If a single-piece suction tip is used, then structural simplicity is maintained, but it cannot simultaneously provide a large distal end opening for manipulation and a microsize suction port for selective cell handling
Solution Approach 1:
The base tip and sub-tip are merged into a single integrated suction tip structure through coupling. The base tip provides the large distal end opening for manipulation, while the sub-tip provides the microsize suction port for selective cell handling. This merging combines the advantages of both components into one functional unit, achieving size differentiation capability while maintaining reasonable structural simplicity for practical applications.
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
This configuration facilitates the manufacture and use of a suction tip with a smaller suction port, enabling accurate and selective suction of microcells while minimizing damage to surrounding cells and ensuring efficient liquid handling.
Implementation Method 1
a suction port (33T) that sucks a biological subject
Implementation Method 2
The integration forms one suction path in which the tubular passage and the guide passage communicate with each other
Data Source
AI summary
A suction tip that sucks a biological subject includes a base tip and a sub-tip. The base tip includes a distal end portion having a distal end opening, and a tubular passage connected to the distal end opening. The sub-tip includes a suction port that sucks the biological subject, and a guide passage having one end connected to the suction port and the other end that receives the distal end portion of the base tip. The base tip and the sub-tip are coupled and integrated by externally fitting the other end of the guide passage to the distal end portion, the integration forming one suction path in which the tubular passage and the guide passage communicate with each other. The suction port has a size smaller than a size of the distal end opening.