Eyedrop Bottle Alignment With Tilt Feedback for Precise Dosing

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Solution Overview

Problem

Conventional eyedrop bottles are difficult to manage due to compromised motor skills, tremors, and lack of coordination, leading to misplaced drops and inefficient application, especially for elderly users or those with physical limitations.

Innovation Solution

An eyedrop assist device with a receiving region, angle calibrator, tilt sensor, and haptic/audio feedback to guide users in correctly positioning the eyedrop bottle and tilting their head for precise dispensing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If conventional eyedrop bottles are used, then users can dispense medication, but users experience difficulty managing the bottle due to compromised motor skills, tremors, and lack of coordination

Engineering Contradiction:
Improveease of dispensingVSAvoidaccuracy of drop placement
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The device introduces an intermediary positioning system between the user's hand and the eyedrop bottle. The positioning device with alignment features and feedback mechanisms acts as a mediator that guides the bottle to the correct position and orientation, compensating for user coordination difficulties while ensuring accurate drop placement.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The device incorporates feedback mechanisms (visual alignment indicators, haptic feedback) that provide real-time information to the user about the bottle's position and orientation. This feedback loop enables users with compromised motor skills to achieve proper positioning by adjusting based on the feedback signals, thereby improving both ease of operation and reliability.

Inventive Principle:
Principle #23Feedback

2Productivity

If users simultaneously squeeze the bottle, aim the nozzle, and maintain position while tilting their head, then eyedrops can be dispensed, but the multi-step process becomes cumbersome and difficult for elderly users or those with physical limitations

Engineering Contradiction:
Improveefficiency of medication administrationVSAvoidcomplexity of dispensing process
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The device performs preliminary positioning and alignment actions before the actual dispensing step. The alignment features and feedback mechanisms pre-establish the correct bottle position and orientation, so that when dispensing occurs, the user only needs to maintain the position rather than continuously adjust multiple parameters simultaneously, simplifying the overall process.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The device merges the positioning, alignment, and stabilization functions into a single integrated system. Rather than requiring separate actions for each of these tasks, the combined device structure with interrelated alignment features allows multiple functions to be achieved through a unified positioning action, reducing the number of discrete steps the user must perform.

Inventive Principle:
Principle #5Merging (Combining)

3Ease of manufacture

If traditional eyedrop bottle design is used, then the bottle is simple in structure, but the task of administering eyedrops becomes complicated and demands a level of dexterity that is challenging for many users

Engineering Contradiction:
Improvesimplicity of bottle designVSAvoidease of administering eyedrops
Core Design Contradiction:
Ease of manufactureVSEase of operation

Solution Approach 1:

The positioning device serves as an intermediary that adds operational guidance without fundamentally redesigning the eyedrop bottle itself. The alignment features and feedback mechanisms provide the necessary guidance to simplify operation, while the basic bottle structure remains relatively simple and manufacturable.

Inventive Principle:
Principle #24Intermediary (Mediator)

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

Enhances precision and ease of administering eyedrops by optimally positioning the bottle tip, aligning with the eye, stabilizing around the eye orbit, and providing feedback for successful delivery.

Implementation Method 1

A tilt sensor is configured to produce second indicium when the longitudinal axis of the receiving region is tilted to form a second angle, relative to the horizontal.

Methodology Applied
Scientific EffectTilt sensor detection: Accelerometer

Implementation Method 2

The angle calibrator may include a proximal aperture and a distal aperture. As such, alignment of the proximal and distal apertures relative to the head tilt of the user may be the first indicium.

Methodology Applied
Scientific EffectLight alignment: Light

Implementation Method 3

The tilt sensor may include a ball inclinometer. For example, to notify the person using the eyedrop assist device of an appropriate amount of tilt, the second indicium may include haptic or audio feedback.

Methodology Applied
Scientific EffectBall inclinometer: Ball

Data Source

PatentUS20260060841A1Eyedrop assist device and method of use
Publication Date: 2026.03.05 MASSACHUSETTS INST OF TECH
  • US20260060841A1 patent drawing
  • US20260060841A1 patent drawing
  • US20260060841A1 patent drawing

AI summary

An eyedrop assist device is configured for use with an eyedrop bottle in an environment defining a horizontal. To that end, the eyedrop assist device has a body with a proximal end and a distal end. Importantly, the body has a receiving region to receive the eyedrop bottle and forming a longitudinal axis. The eyedrop assist device also has an angle calibrator configured to produce first indicium identifying when the longitudinal axis of the receiving region forms a first angle, and a tilt sensor. Preferably, the tilt sensor is configured to produce second indicium when the longitudinal axis of the longitudinal axis of the receiving region is tilted to form a second angle relative to the horizontal. Since they are for different purposes, the first and second angles are different angles.