Intraocular Pressure Sensor with Reduced Electrode Attachment
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Solution Overview
Problem
Current intraocular pressure sensors face limitations in measuring range and efficiency, particularly in accommodating changes in intraocular pressure, due to the large attachment area of electrodes and base films, which hinders accurate diagnosis and treatment of conditions like glaucoma.
Innovation Solution
The method involves manufacturing an intraocular pressure sensor with a reduced attachment area by using a base film and a first electrode with an epoxy application, and a support film with a second electrode, where the distance between the electrodes generates an eddy current that changes with intraocular pressure, allowing for improved measurement efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the attachment area of the first electrode and base film is reduced to improve pressure measurement sensitivity, then the measurement precision is improved, but the structural stability deteriorates
Solution Approach 1:
The electrode system is divided into a first electrode attached to the base film and a second electrode on the support film, with the first electrode specifically designed with reduced attachment area. This segmentation allows the measurement function to be isolated from the structural support function, enabling small attachment area for sensitivity while maintaining overall structural integrity through the dual-electrode configuration.
Solution Approach 2:
The base film and support film are designed as thin flexible structures that can deform in response to pressure changes. The first electrode is attached to the flexible base film with minimal attachment area, allowing the film to flex freely for sensitive pressure detection while the overall film structure maintains structural stability through its continuous geometry.
2Adaptability or versatility
If the attachment area of the first electrode and base film is reduced to enable easier movement with pressure changes, then the adaptability is improved, but the manufacturing precision requirement increases
Solution Approach 1:
The base film is prepared in advance with a defined geometry and material properties suitable for flexible attachment. The first electrode is then attached to this pre-prepared base film with controlled attachment area, rather than attempting to create the entire structure in one manufacturing step. This preliminary preparation of the base film simplifies the subsequent electrode attachment process and reduces overall manufacturing complexity.
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 configuration enhances the range and efficiency of intraocular pressure measurement by minimizing the attachment surface, enabling easier movement of the first electrode with pressure changes and improving the accuracy of pressure detection.
Implementation Method 1
generating an eddy current that measures pressure changes
Data Source
AI summary
Disclosed is a method of manufacturing an intraocular pressure sensor that is put into an eyeball of a patient and measures the intraocular pressure, the method comprising: preparing a first substrate; depositing a base film on the bottom of the first substrate; exposing the top of the base film by etching the first substrate; applying epoxy onto the center of the exposed base film; disposing the first electrode at the epoxy-applied portion on the base film; preparing a second substrate; depositing a support film onto the second substrate; forming a second electrode on the support film; exposing the bottom of the support film by etching the second substrate; and disposing the second substrate onto the first substrate.