Handheld Meibomian Gland Thermal Applicator with Spring-Biased Telescoping Tip
Solution Overview
Problem
Current treatments for dry eye syndrome, particularly those involving thermal applications, are cumbersome, require significant patient compliance, and often apply heat to unnecessary areas, while existing devices are complex and expensive, limiting their use to clinical settings and lacking in precise control over pressure and even heating.
Innovation Solution
A portable, hand-held meibomian gland thermal treatment apparatus with a battery-powered thermal applicator tip that allows for precise temperature control and application pressure, enabling treatment with one eye open and automatic timing, designed for comfortable and discreet use at home.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If warm compresses or gel masks are used to treat meibomian glands, then thermal treatment can be applied, but the treatment requires significant time (10-20 minutes), applies heat to unnecessary facial areas, and requires patient to be tethered to power sources
Solution Approach 1:
The patent divides the treatment area into segments: a focused thermal applicator tip that treats only the specific meibomian gland region of one eyelid at a time, rather than applying heat to the entire face or both eyes simultaneously. This segmentation enables precise, localized treatment reducing unnecessary heating time and allowing the other eye to remain open and functional
Solution Approach 2:
The patent employs a telescoping applicator head with spring biasing that dynamically adjusts to match the force of an eyelid blink, providing consistent contact pressure without requiring manual pressure application. This dynamic adaptation ensures effective thermal transfer while maintaining comfort and reducing treatment time
2Measurement precision
If advanced thermal treatment devices are used, then precise temperature control can be achieved, but the devices become complex and expensive, limiting use to clinical settings
Solution Approach 1:
The patent implements self-regulating thermal control through a PTC (positive temperature coefficient) heater element that automatically adjusts its resistance based on temperature, providing precise temperature control without complex external regulation circuits. The spring-biased telescoping mechanism also provides self-regulating contact pressure, eliminating the need for motorized pressure control systems
Solution Approach 2:
The patent replaces complex electronic pressure control systems with a simple mechanical spring-biased telescoping mechanism that naturally mimics the force of an eyelid blink. This mechanical substitution achieves consistent contact pressure with minimal components, reducing device complexity while maintaining treatment precision
3Productivity
If both eyes are treated simultaneously with warm compresses, then both meibomian glands receive treatment, but the patient cannot perform visual tasks and must close both eyes
Solution Approach 1:
The patent treats one eyelid at a time using a focused applicator tip, allowing the other eye to remain open and functional. This segmented approach enables patients to perform visual tasks, communicate, or monitor their environment during treatment, significantly improving ease of operation and patient convenience
Solution Approach 2:
The patent enables continuous useful action by allowing the non-treated eye to remain open and functional throughout the treatment process. Patients can continuously perform visual tasks without interruption, eliminating the need to close both eyes simultaneously and maintaining productivity during treatment
4Force
If manual pressure application is used during thermal treatment, then contact with the eyelid can be maintained, but consistent pressure and even heating are difficult to achieve
Solution Approach 1:
The patent uses a dynamic spring-biased telescoping mechanism that automatically adjusts to match the force of an eyelid blink, providing consistent contact pressure across the treatment surface. This dynamic adaptation ensures even heating by maintaining uniform force distribution without requiring manual pressure control
Solution Approach 2:
The spring-biased mechanism provides mechanical feedback that automatically regulates contact pressure. As the applicator compresses the eyelid, the spring force naturally adjusts to maintain optimal contact, ensuring consistent pressure and even heating distribution across the treatment area without manual intervention
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 apparatus provides effective, precise thermal treatment for meibomian glands, improving patient compliance by allowing treatment during daily activities and reducing the risk of gland damage from solidified oil, while being affordable and easy to use outside clinical settings.
Implementation Method 1
The thermal applicator tip has a face configured to apply thermal energy to a single eyelid meibomian gland region
Implementation Method 2
A battery-containing housing terminates at a thermal applicator tip
Data Source
AI summary
A portable handheld meibomian gland thermal treatment apparatus includes a housing holding a battery and necessary electrical components. A generally rectangular and concave thermal applicator tip terminates the housing, and applies precisely controlled heat to a single eyelid. A bend in the housing enables the apparatus to be held in position with the apparatus extending from the eyelid generally parallel to the ground and then from the bend sloping away from the viewing plane, either down toward the ground or upward away from the ground. As a result, a person may still keep one of the two eyelids on the treatment eye open and see past the housing and supporting hand, thereby simultaneously performing treatment while also performing other tasks. Various embodiments illustrate automatic on and off operation; a telescoping applicator having long-travel application force regulation; and a method of thermally treating meibomian gland dysfunction using the apparatus.