Chromatographic Connector Access Element for Ferrule Removal
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Solution Overview
Problem
The removal and replacement of stuck ferrules in chromatographic connectors are often difficult and time-consuming, potentially damaging the system and requiring costly and labor-intensive procedures such as thermal shock or the use of prying tools.
Innovation Solution
A connector element with a cavity for receiving a sealing member and an access element for providing access to the sealing member, allowing for the use of a dislodgement element like a rigid rod to easily remove stuck ferrules from the connector interior.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional ferrules are used in connector cavities, then sealing function is achieved, but removal becomes difficult and time-consuming
Solution Approach 1:
The patent incorporates a pre-designed access element (such as a slot or opening) in the connector cavity during manufacturing. This preliminary structural feature allows future removal tools to easily access the ferrule without requiring complex thermal shock processes or specialized prying tools, thus reducing removal time while maintaining the sealing function during normal operation.
2Ease of operation
If conventional ferrule removal methods are used, then ferrule can be removed, but system components may be damaged
Solution Approach 1:
The patent extracts the access element as a separate functional feature from the main connector body. This access element provides a dedicated pathway for removal tools to reach the ferrule, allowing ferrule extraction without applying force to surrounding sensitive components. The access element acts as an isolated interface that protects the rest of the system from damage during removal operations.
3Ease of repair
If thermal shock or prying tools are used for ferrule removal, then ferrule can be dislodged, but costly procedures and tools are required
Solution Approach 1:
The connector cavity is designed with self-service characteristics through the integrated access element. This feature enables users to perform ferrule removal themselves using simple, inexpensive tools that can reach through the access element, eliminating the need for costly thermal shock equipment or specialized prying tools. The design makes the removal process self-servicing rather than requiring complex external equipment.
Data Source
AI summary
A connector element for use with analytical devices is provided. The connector element includes a cavity for receiving a sealing member, and an access element for providing access to the sealing member when disposed in the cavity, e.g., for dislodging the sealing member from the connector element. Also provided are analytical devices that include the connector element, as well as methods of using the same.