Collapsible Wound Irrigation Device With Pressure-Controlled Nozzle

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Solution Overview

Problem

Current wound irrigation methods are inefficient due to high pressure causing tissue damage and the need for expensive, bulky equipment that requires extensive storage and shipping space, while also risking infection if not properly cleaned before closure.

Innovation Solution

A self-contained, collapsible wound irrigation device that can be quickly filled with liquid and delivers fluid under pressure using a nozzle assembly with a valve system that allows controlled fluid exit based on applied pressure, reducing tissue damage and infection risk.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If high pressure irrigation is used to effectively clean wounds, then cleaning effectiveness is improved, but tissue damage and infection risk increase

Engineering Contradiction:

Improvewound cleaning effectivenessVSAvoidtissue damage and infection risk

Core Design Contradiction:

ProductivityVSObject-affected harmful factors

Solution Approach 1:

The device changes the pressure parameter from high to low range (1-5 psi), and controls fluid volume parameter (250-10000 cc) to achieve effective wound cleaning without causing tissue damage or driving pathogens deeper into the wound

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The device uses hydraulic principles by delivering controlled volumes of fluid (250-10000 cc) at controlled low pressure (1-5 psi) through a nozzle assembly to achieve effective wound irrigation without the harmful effects of high pressure

Inventive Principle:

Principle #29Pneumatics and hydraulics

2Ease of operation

If traditional wound irrigation equipment is used, then wound cleaning can be performed, but the equipment is expensive, bulky, and requires extensive storage and shipping space

Engineering Contradiction:

Improvewound irrigation capabilityVSAvoidstorage and shipping space

Core Design Contradiction:

Ease of operationVSVolume of moving object

Solution Approach 1:

The device merges multiple functions (fluid storage, pressure control, nozzle assembly, and irrigation delivery) into a single integrated handheld device, eliminating the need for separate bottles, catheters, and control mechanisms that characterize traditional systems

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The device is designed as a multi-functional handheld unit that can store various irrigation fluids, control pressure and flow, and deliver irrigation to wounds, making it suitable for multiple wound care applications without requiring different equipment

Inventive Principle:

Principle #6Universality (Multi-functionality)

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 efficiently cleans wounds by allowing precise control of fluid pressure and volume, reducing tissue damage and infection risk while being more compact and cost-effective for storage and transport.

Implementation Method 1

the valve configured to selectively allow liquid to exit the container when pressure is applied to the container

Methodology Applied

Scientific EffectPressure differential: Pressure Gradient

Data Source

PatentUS11654229B2Wound irrigation device

Publication Date: 2023.05.23 INDIANA UNIVERSITY RESEARCH & TECHNOLOGY CORP

AI summary

A wound irrigation device including a container with an opening along the outer surface of the container and a nozzle assembly coupled to the container and configured to selectively allow the liquid to exit the container when pressure is applied to the container.