Continuous Analyte Sensor Coating for Uniform Reel-to-Reel Production
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Solution Overview
Problem
Existing continuous analyte sensors are produced through batch processes, which are not suitable for large-scale, low-cost manufacturing and result in batch-to-batch variations, leading to property inconsistencies.
Innovation Solution
A continuous manufacturing process for analyte sensors involving the application of insulating and conductive materials to an elongated conductive body using a reel-to-reel system, with real-time thickness control and removal of excess material, followed by cutting into individual sensors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If batch processes are used to manufacture continuous analyte sensors, then manufacturing flexibility is maintained, but production costs increase and batch-to-batch variations occur
Solution Approach 1:
The patent implements a continuous manufacturing process where the elongated conductive body is continuously advanced through coating stations that apply insulating and conductive materials in sequence, eliminating batch processing interruptions and ensuring consistent sensor properties throughout production
Solution Approach 2:
The system incorporates real-time thickness measurement and control mechanisms that monitor coating application and provide feedback to maintain precise dimensional control, ensuring manufacturing precision while operating in continuous mode
2Device complexity
If batch processes are used to manufacture continuous analyte sensors, then process simplicity is maintained, but productivity decreases
Solution Approach 1:
The continuous manufacturing process operates without interruption, with the elongated conductive body continuously moving through multiple coating and processing stations, dramatically increasing production volume compared to batch processes that require repeated setup and teardown
Solution Approach 2:
Multiple manufacturing operations including coating application, drying, curing, and quality inspection are merged into a single continuous production line, maintaining operational simplicity while achieving high throughput
3Reliability
If coating material is applied to the elongated conductive body, then sensor functionality is improved, but coating thickness uniformity becomes difficult to control
Solution Approach 1:
Real-time thickness measurement devices monitor the coating application process and provide feedback control to maintain uniform coating thickness, ensuring both sensor functionality and manufacturing precision are achieved simultaneously
Solution Approach 2:
The system controls coating parameters such as material viscosity, application speed, and drying conditions to optimize coating uniformity while maintaining the functional requirements of the sensor
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 process reduces production costs and minimizes variations among sensors, enabling efficient, automated production of consistent analyte sensors.
Implementation Method 1
applying an insulating material to an elongated conductive body by advancing the elongated conductive body through a meniscus comprising the insulating material
Implementation Method 2
applying an insulating material to an elongated conductive body by advancing the elongated conductive body through a meniscus comprising the insulating material
Implementation Method 3
drying or curing the applied insulating material to form a coating of the insulating material on the elongated conductive body
Data Source
AI summary
Described here are embodiments of processes and systems for the continuous manufacturing of implantable continuous analyte sensors. In some embodiments, a method is provided for sequentially advancing an elongated conductive body through a plurality of stations, each configured to treat the elongated conductive body. In some of these embodiments, one or more of the stations is configured to coat the elongated conductive body using a meniscus coating process, whereby a solution formed of a polymer and a solvent is prepared, the solution is continuously circulated to provide a meniscus on a top portion of a vessel holding the solution, and the elongated conductive body is advanced through the meniscus. The method may also comprise the step of removing excess coating material from the elongated conductive body by advancing the elongated conductive body through a die orifice. For example, a provided elongated conductive body 510 is advanced through a pre-coating treatment station 520, through a coating station 530, through a thickness control station 540, through a drying or curing station 550, through a thickness measurement station 560, and through a post-coating treatment station 570.