Contamination-Resistant Sensor Port Sealing Design
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Solution Overview
Problem
Analyte sensors are prone to contamination due to exposure through the sensor port, which can affect internal components and interfere with analysis results.
Innovation Solution
A contamination-resistant sensor port design featuring multiple sealing members, including a compliant gasket material and adhesive-backed polyimide film tape, to form seals around the entry slot and other openings, preventing fluid and particle ingress.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the sensor port provides an opening for sensor insertion, then sensor accessibility is improved, but contamination risk increases
Solution Approach 1:
The patent employs a flexible membrane that selectively covers the sensor port opening. This membrane acts as a barrier to contaminants while allowing sensor insertion and removal. The flexible nature of the membrane maintains sensor accessibility, while its sealing property prevents contamination of internal components through the opening.
Solution Approach 2:
The membrane serves as an intermediary element between the external environment and the internal components of the device. It mediates the contradiction by providing a selective interface that permits sensor interaction while blocking harmful contaminants, thus resolving the conflict between accessibility and contamination protection.
2Object-affected harmful factors
If sealing members are added to prevent contamination, then contamination resistance is improved, but device complexity increases
Solution Approach 1:
The use of a flexible membrane as a sealing solution provides effective contamination protection without significantly increasing device complexity. The membrane can be integrated into the existing sensor port structure, offering a simple yet effective sealing mechanism that prevents contaminant ingress while maintaining ease of sensor insertion and removal.
Data Source
AI summary
The present disclosure provides a contamination resistant sensor port which includes one or more sealing members positioned so as to limit and/or prevent internal contamination of the sensor port with fluids and/or particles present in the environment outside the sensor port.