Amputation Dressing With Elastic Tube Compression

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Amputation surgeries result in surgical wounds that require proper healing and prevention of stump oedema, with existing dressings often failing to efficiently facilitate healing and prevent swelling, leading to complications like tissue necrosis and re-amputation.

Innovation Solution

An amputation dressing featuring a wound contact layer with a central panel and radially extending petals, coupled with an elastic tube providing compressive force, along with an absorbent pad and hip attacher for secure application, designed to promote healing and prevent swelling.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional dressings are used to cover surgical wounds on the stump, then wound coverage is provided, but the dressings fail to effectively resist swelling and prevent oedema

Engineering Contradiction:

Improvewound healing effectivenessVSAvoidstump swelling and oedema

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent combines wound coverage function and compression function into a single integrated dressing system. The elastic tube provides compression while the wound contact layer with petals provides wound coverage, and both are applied together as one system rather than separate dressings.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The dressing system performs multiple functions simultaneously: the elastic tube provides both compression to prevent oedema and structural support, while the wound contact layer with petals provides both wound coverage and conformal adaptation to the stump shape.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Object-affected harmful factors

If compressive force is applied to the stump to prevent oedema, then swelling is resisted, but existing dressings fail to provide adequate compression and support

Engineering Contradiction:

Improvestump oedema preventionVSAvoidcompressive force provision

Core Design Contradiction:

Object-affected harmful factorsVSStrength

Solution Approach 1:

The elastic tube is made from elastic material that can be stretched and rolled to provide controlled compressive force. The elasticity parameter of the material allows it to exert consistent compression on the stump to prevent oedema while adapting to different stump sizes.

Inventive Principle:

Principle #35Parameter changes

3Ease of operation

If a simple dressing structure is used, then application is easy, but the dressing cannot effectively facilitate healing and prevent complications

Engineering Contradiction:

Improvedressing application simplicityVSAvoidhealing facilitation and complication prevention

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The wound contact layer is segmented into a central panel and multiple petals that can be independently positioned and conform to the stump shape. This segmentation allows easy application while ensuring proper coverage and adaptation to the complex geometry of the stump.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The petals are designed to wrap around and conform to the curved surface of the stump, providing better contact and coverage compared to flat dressings. The curved geometry of the petals allows them to adapt to the cylindrical shape of the stump while maintaining simplicity in application.

Inventive Principle:

Principle #14Spheroidality (Curvature)

4Area of stationary object

If existing dressings are used to cover wounds, then basic coverage is provided, but they fail to expedite prosthetic fitting and reduce complication risks

Engineering Contradiction:

Improvewound coverage areaVSAvoidtime to prosthetic fitting

Core Design Contradiction:

Area of stationary objectVSLoss of time

Solution Approach 1:

The elastic tube provides continuous compression along the length of the stump, maintaining constant pressure to prevent oedema and support healing throughout the recovery period, which expedites prosthetic fitting by preventing complications that would delay fitting.

Inventive Principle:

Principle #20Continuity of useful action

Solution Approach 2:

The dressing combines different materials with complementary properties: the elastic tube provides compression and support, while the wound contact layer with petals provides wound coverage and absorption. This composite structure addresses multiple healing requirements simultaneously, reducing complication risks and accelerating the path to prosthetic fitting.

Inventive Principle:

Principle #40Composite materials

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 dressing enhances wound healing, reduces the risk of complications, and provides effective compression to prevent oedema, thereby expediting prosthetic fitting and improving patient care.

Implementation Method 1

The tube is made of an elastic material and may be stretched and rolled to provide compression

Methodology Applied

Scientific EffectElasticity: Elasticity

Data Source

PatentUS12193916B2Dressing for stumps following amputation

Publication Date: 2025.01.14 SYSTAGENIX WOUND MANAGEMENT LTD

AI summary

An amputation dressing includes a wound contact layer that includes a central panel and three or more petals extending radially from the central panel. The wound contact layer also includes a tube of elastic material twisted to form a point. The point is located substantially centrally along a length of the tube. The tube of elastic material is coupled to the central panel proximate the point. The tube is rolled from a first end of the tube to the point to form a first roll and from a second end of the tube to the point to form a second roll.