Water Resistant Connector Sleeve Plug Deformation
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Solution Overview
Problem
Conventional waterproof rubber rings fail to achieve tight sealing in implantable medical electronic devices due to the size constraint between the electrode line and guide pin, allowing moisture to penetrate and cause damage to the internal components.
Innovation Solution
A water-resistant connector design featuring a base, sleeve plug, clamping member, and locking member, where the sleeve plug deforms to tightly join with the internal wall of the base and transmission line, preventing moisture ingress and securing the line in place.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional waterproof rubber ring is used to seal the connector, then water resistance is improved, but the electrode line cannot be securely held due to size constraints in implantable devices
Solution Approach 1:
The sealing function is divided into two separate components: the waterproof rubber ring for sealing and the clamping member for line securing. This segmentation allows each component to perform its specific function effectively without the size constraints that prevented the rubber ring from holding the line in implantable devices.
Solution Approach 2:
The clamping member acts as an intermediary component between the electrode line and the connector housing. It provides the mechanical clamping force needed to secure the line, while the rubber ring provides the sealing function, allowing both functions to coexist in the limited space of implantable devices.
2Length of moving object
If the electrode line diameter is reduced to fit through the guide pin, then implantability is improved, but the rubber ring cannot be extruded to achieve tight sealing
Solution Approach 1:
The sealing and clamping functions are separated into distinct components. The rubber ring maintains its sealing function independent of the line diameter, while the clamping member provides the necessary extrusion force to secure the line, allowing tight sealing even with reduced electrode line diameters suitable for implantable devices.
Solution Approach 2:
The design changes the mechanical parameters of the sealing system by introducing a clamping member that can be extruded to apply controlled force on both the rubber ring and the electrode line. This allows the system to achieve tight sealing with varying line diameters without relying on the line size to extrude the rubber ring.
3Device complexity
If a single rubber ring is used for both sealing and line holding, then device complexity is reduced, but water resistance and line securing cannot both be achieved
Solution Approach 1:
The sealing mechanism is segmented into two specialized components: the rubber ring dedicated to water sealing and the clamping member dedicated to line holding. This segmentation, while increasing component count, enables both functions to be performed reliably, which is critical for implantable medical devices where failure is not an option.
Solution Approach 2:
The clamping member serves multiple functions: it secures the electrode line, provides structural support, and works in conjunction with the rubber ring to achieve both sealing and line holding. This multi-functionality compensates for the increased component count by integrating several roles into a single component.
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 design effectively prevents moisture penetration and line loosening, ensuring the integrity and safety of implantable medical electronic devices by achieving a secure and watertight seal.
Implementation Method 1
The locking member moves linearly and extrudes the clamping member and the sleeve plug such that the sleeve plug has deformation by the extrusion from the neck portion of the base
Implementation Method 2
The locking member moves linearly and extrudes the clamping member and the sleeve plug
Data Source
AI summary
A water resistant connector jointing with a housing, comprises a base, a sleeve plug disposed in the base, a clamping member disposed in the base and a locking member. The sleeve plug contacts with the neck portion of the base. The locking member is locked at the housing and contacts with the clamping member. The transmission line passes through the locking member, the clamping member, and the sleeve plug such that one portion of the transmission line is exposed at the exterior of the base. The locking member moves linearly and extrudes the clamping member and the sleeve plug such that the sleeve plug has deformation by the extrusion from the neck portion of the base. The effects of water resistance and seal may be achieved by using the sleeve plug to tightly joint with the internal wall of the base and the transmission line.


