Pressure Sensor Coupling With Membrane-Sealed Quick Release
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Solution Overview
Problem
Current connection systems for single-use pressure sensors with metal measuring heads are complex to handle, prone to user errors, and require significant time for installation and disinstallation, leading to inaccurate measurements in biopharmaceutical applications.
Innovation Solution
A connection system featuring a disc-shaped holding member and a releasable connection member that allows for a robust, defined mechanical coupling between a single-use pressure sensor and a fluid-carrying system via a fluid-tight membrane, enabling easy and reliable mounting, even with one hand, and ensuring a secure fluid-tight seal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If auxiliary devices such as hoods and locking pins are used to achieve firm compression between single-use pressure sensor and metal measuring head, then measurement accuracy and reproducibility are improved, but device complexity and ease of operation deteriorate
Solution Approach 1:
The connection member integrates multiple functions (hood, locking mechanism, compression element) into a single unified component. The U-shaped connection member combines the protective hood structure with integrated locking pins and compression surfaces, eliminating the need for separate auxiliary devices while maintaining measurement accuracy and reproducibility.
Solution Approach 2:
The connection member is designed as a multi-functional universal component that can be used with both single-use pressure sensors and metal measuring heads. It provides protection, locking, and compression functions simultaneously, making it adaptable to various connection scenarios without requiring different auxiliary devices.
2Measurement precision
If auxiliary devices such as hoods and locking pins are used to achieve firm compression, then measurement accuracy is improved, but ease of operation deteriorates
Solution Approach 1:
The connection member integrates multiple functions (hood, locking mechanism, compression element) into a single unified component. The U-shaped connection member combines the protective hood structure with integrated locking pins and compression surfaces, eliminating the need for separate auxiliary devices while maintaining measurement accuracy and reproducibility.
3Reliability
If complex auxiliary devices are used for connection, then connection firmness is improved, but installation and disinstallation time increases
Solution Approach 1:
The connection system is segmented into distinct modular components: the connection member, the single-use pressure sensor, and the metal measuring head. This segmentation allows for quick assembly and disassembly while maintaining connection firmness during operation. The U-shaped connection member can be easily attached and detached without complex procedures.
Solution Approach 2:
The connection member incorporates dynamic locking and release mechanisms that allow for rapid engagement and disengagement. The locking pins and compression features are designed to be easily activated and deactivated, enabling quick installation and disinstallation while maintaining reliable connection firmness during the measurement process.
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 connection system provides a simple, safe, and reliable method for mounting and dismounting single-use pressure sensors, reducing the risk of errors and improving measurement accuracy by facilitating a secure fluid-tight seal and efficient installation process.
Implementation Method 1
The pressure transducer, being a sealed flow-through part of the fluid system, transmits the pressure forces via a membrane to a measuring element
Data Source
AI summary
Disclosed is a connection system for releasably coupling a first body (5) with a flange (25) to a fluid-conducting system in a force-fitting manner, and the invention also relates to a connection system for releasably coupling the interior of a first fluid-conducting body (5) to the interior of a second fluid-conducting body (3) in a force-fitting manner. The second body (3) has a second end with a circumferential wall (22), a membrane contact portion (9) which can be found on the wall, and an opening (43). A retaining element (2) has a passage (35) and a peripheral outer edge (24). One side and/or the passage (35) of the retaining element (2) is coupled to the membrane (1), and an annular wall (26) is arranged on the same side, said annular wall being connected to the circumferential wall (22) of the second body (3). The other side is designed to contact the surface of the flange (25) of the first body (5). The retaining element (2) can also be integrated into the second body (3) when the first body (5) is fluid-conductive. The releasable connection element (4) is designed to at least partly surround the peripheral outer edge (24) of the retaining element (2) and the flange (25) of the first body (5).