Combined Tonometer And Medication Applicator for Home Glaucoma Care
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Solution Overview
Problem
Existing glaucoma care requires vigilant and continuous patient adherence to both intraocular pressure (IOP) measurement and medication administration, which is challenging due to poor patient compliance and high costs associated with clinic visits.
Innovation Solution
A combined tonometer and medication applicator that integrates a medication dispensing unit, allowing for simultaneous or sequential IOP measurement and medication application in a single process step, utilizing various tonometry techniques such as rebound-based, air-puff-based, or optical coherence elastography, with options for disposable probes or smart cartridges for medication delivery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate IOP measurement and medication administration are performed independently, then each function can be optimized separately, but patient adherence deteriorates due to the burden of multiple separate procedures
Solution Approach 1:
The patent combines the IOP measurement function and medication administration function into a single integrated device. The tonometer housing incorporates both the measurement mechanism and the medication reservoir with dispensing capability, allowing patients to perform both tasks in one procedure rather than as separate steps, thereby improving adherence by reducing the burden of multiple separate procedures.
Solution Approach 2:
The device is designed to perform multiple functions: measuring intraocular pressure and administering medication. The single device serves as both a diagnostic tool and a therapeutic delivery system, eliminating the need for patients to switch between separate measurement devices and medication bottles, thus simplifying the overall process and improving compliance.
2Measurement precision
If clinic-based IOP measurements are performed annually, then measurement accuracy can be maintained, but cost burden increases significantly for patients
Solution Approach 1:
The patent enables patients to perform self-IOP measurements at home using the integrated device. The device includes all necessary components for autonomous operation: measurement mechanism, medication reservoir, and dosing control. This self-service capability eliminates the need for frequent clinic visits, reducing the cost burden on patients while maintaining measurement precision through proper device calibration and user guidance.
3Manufacturing precision
If medication dispensing is manual, then device complexity remains low, but dosing accuracy deteriorates due to patient error
Solution Approach 1:
The device incorporates a control mechanism that monitors and regulates medication dispensing. The system can track the number of doses administered, control the timing and quantity of medication release, and provide feedback to ensure accurate dosing. This automated control reduces patient error while the complexity is managed through integrated electronics and user-friendly interfaces.
Solution Approach 2:
The patent replaces manual mechanical dispensing with an automated or semi-automated dispensing mechanism controlled by electronic or software systems. This substitution enables precise control over medication delivery timing and quantity, improving dosing accuracy while the overall device complexity is balanced through integrated design and user guidance systems.
4Ease of operation
If home monitoring is implemented, then accessibility and convenience improve, but patient adherence deteriorates due to lack of supervision
Solution Approach 1:
The device incorporates monitoring and feedback mechanisms that track medication administration and IOP measurements. The system can alert patients to missed doses, provide reminders for scheduled measurements, and transmit data to healthcare providers for remote supervision. This feedback loop maintains patient compliance in a home setting by providing continuous monitoring and accountability while preserving the convenience of home-based care.
Data Source
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AI summary
The proposed combination device combines any tonometric metrology with a drug application to administer glaucoma medication on an eye. Several technical concepts are proposed and exemplary embodiments for rebound tonometry and air-puff tonometry are shown. However other methods such as optical coherence elastography (OCE) could also be used. The Solutions provide home care tonometry offerings which host the capability to administer glaucoma medication.