Compressible Bulb Medication Delivery Device

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Solution Overview

Problem

Current droppers for administering liquid medications, particularly for ear applications, are inefficient, leading to wasted medication, increased costs, and decreased clinical efficacy due to reliance on gravity, which often results in poor targeting and potential trauma to the ear canal.

Innovation Solution

A device comprising a compressible first hollow bulb and a second hollow bulb connected by a hollow stem, where the second bulb has an opening opposite the stem, allowing for controlled propulsion of liquid into the ear by compressing the first bulb, ensuring accurate delivery and minimizing waste.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If liquid medication is dispensed using gravity-dependent droppers, then the device structure is simple, but the medication delivery accuracy deteriorates and clinical efficacy decreases

Engineering Contradiction:
Improvedropper structureVSAvoidmedication delivery accuracy
Core Design Contradiction:
Device complexityVSMeasurement precision

Solution Approach 1:

The patent employs pneumatic pressure through a compressible bulb to propel liquid medication through a controlled pathway. The bulb connects to a reservoir and delivers medication via a tip, using mechanical compression rather than gravity-dependent flow. This pneumatic mechanism enables precise control over medication delivery accuracy while maintaining relatively simple device construction.

Inventive Principle:
Principle #29Pneumatics and hydraulics

2Ease of operation

If gravity-dependent dropping is used to administer medication, then the device is easy to operate, but medication waste increases and clinical efficacy decreases

Engineering Contradiction:
Improvedropper usageVSAvoidmedication waste
Core Design Contradiction:
Ease of operationVSLoss of substance

Solution Approach 1:

The compressible bulb creates controlled pneumatic pressure to deliver medication through a defined pathway to the target location. This controlled delivery mechanism reduces medication waste by ensuring precise placement rather than gravity-dependent dripping that often results in spillage or improper positioning. The device remains easy to operate through simple compression action.

Inventive Principle:
Principle #29Pneumatics and hydraulics

3Device complexity

If gravity-dependent droppers are used, then the device structure is simple, but the number of drops required increases thus increasing cost

Engineering Contradiction:
Improvedropper structureVSAvoidnumber of drops needed
Core Design Contradiction:
Device complexityVSQuantity of substance

Solution Approach 1:

The pneumatic delivery system through the compressible bulb and controlled pathway enables more efficient medication delivery per drop. By using mechanical compression rather than gravity-dependent flow, each drop is more effectively placed at the target location, reducing the total number of drops required to achieve therapeutic effect and thereby reducing overall treatment cost.

Inventive Principle:
Principle #29Pneumatics and hydraulics

4Device complexity

If gravity-dependent droppers are used, then the device is simple, but the likelihood of medication reaching target location decreases

Engineering Contradiction:
Improvedropper structureVSAvoidmedication delivery reliability
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The compressible bulb creates active pneumatic pressure to propel medication through a controlled pathway directly to the target location. This active delivery mechanism significantly improves reliability compared to passive gravity-dependent droppers, ensuring medication reaches the intended target with greater consistency and effectiveness.

Inventive Principle:
Principle #29Pneumatics and hydraulics

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 device enhances the efficiency and accuracy of liquid medication delivery to the ear, reducing waste and trauma, while improving clinical efficacy and reducing costs by ensuring the medication reaches the target location effectively.

Implementation Method 1

a first hollow bulb, wherein the first hollow bulb is compressible

Methodology Applied
Scientific EffectCompression: Compression

Implementation Method 2

projecting the liquid into the patient's ear by compressing a first hollow bulb of the device

Methodology Applied
Scientific EffectPressure gradient: Pressure Gradient

Data Source

PatentEP3362183B1Device for delivering medication
Publication Date: 2021.07.28 AJB LLC
  • EP3362183B1 patent drawingFigure 1~3
  • EP3362183B1 patent drawingFigure 4~6
  • EP3362183B1 patent drawingFigure 7~9

AI summary

A device for the dispensing of liquids is disclosed. In an embodiment the device comprises a first hollow bulb coupled to a second hollow bulb, wherein the first hollow bulb is compressible; and a separator element disposed between the first hollow bulb and the second hollow bulb, wherein the separator element defines a passage; wherein the second hollow bulb defines an opening.