Alternating Negative Pressure and Oxygen Wound Therapy

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Solution Overview

Problem

Current wound treatment devices either apply negative pressure or oxygen, but not both in an alternating and cycling manner, which limits their combined therapeutic effect on wound healing.

Innovation Solution

A portable wound treatment device that integrates a negative pressure pump and an oxygen delivery system with a control mechanism to apply alternating cycles of negative pressure and oxygen, allowing adjustable durations and intensities, forming a sealed enclosure to enhance wound healing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a wound treatment device applies only negative pressure or only oxygen separately, then the device structure is simpler, but the wound healing effect is limited and not optimized

Engineering Contradiction:
Improvewound healing effectVSAvoiddevice structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines negative pressure delivery and oxygen delivery into a single integrated wound treatment device. The device includes a negative pressure pump, oxygen storage bag, oxygen delivery pump, and control unit all integrated within one housing, allowing simultaneous application of both therapies to enhance wound healing while maintaining a unified device structure

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The device performs multiple functions through a single integrated system: it can deliver negative pressure to the wound, deliver oxygen to the wound, control treatment cycles automatically, and monitor treatment parameters. This multi-functionality allows the device to provide comprehensive wound care that combines the benefits of both negative pressure therapy and oxygen therapy

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Reliability

If the device integrates multiple functions (negative pressure pump, oxygen delivery system, control mechanism), then the treatment capability is enhanced, but the device size and portability are compromised

Engineering Contradiction:
Improvetreatment capabilityVSAvoiddevice portability
Core Design Contradiction:
ReliabilityVSWeight of moving object

Solution Approach 1:

The patent integrates the negative pressure pump, oxygen storage bag, oxygen delivery pump, and control unit into a single compact housing, consolidating multiple heavy components into one portable device that can be easily transported and used at the patient's bedside or in various clinical settings

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The device nests multiple functional components within a compact structure: the oxygen storage bag is positioned within the housing, the negative pressure pump and oxygen delivery pump are integrated side-by-side, and the control unit is embedded within the same housing, creating a space-efficient design that maintains all necessary functions while minimizing overall device size

Inventive Principle:
Principle #7Nested doll (Nesting)

3Ease of operation

If the device provides fixed treatment cycles, then the operation is simpler, but the adaptability to different wound types and treatment requirements is reduced

Engineering Contradiction:
Improveoperation simplicityVSAvoidtreatment customization
Core Design Contradiction:
Ease of operationVSAdaptability or versatility

Solution Approach 1:

The control unit allows dynamic adjustment of treatment parameters including negative pressure level, oxygen flow rate, and treatment cycle duration. Users can customize the treatment protocol based on specific wound requirements, patient condition, and treatment stage, enabling the device to adapt from simple fixed cycles to complex customized regimens as needed

Inventive Principle:
Principle #15Dynamics

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

Facilitates faster and more complete wound recovery by combining the benefits of negative pressure and oxygen therapy in a portable, easily adjustable device, suitable for various wound types and locations.

Implementation Method 1

a negative pressure pump connected to the negative pressure lumen, the negative pressure pump being capable of applying intermittent negative pressure to the wound enclosure

Methodology Applied
Scientific EffectNegative pressure: Vacuum

Implementation Method 2

an oxygen delivery device connected to the oxygen tube, the oxygen delivery device being capable of delivering intermittent oxygen to the wound enclosure

Methodology Applied
Scientific EffectOxygen delivery: Diffusion

Data Source

PatentUS10328184B2Wound treatment device
Publication Date: 2019.06.25 GVODAS JR JOHN M
  • US10328184B2 patent drawing

AI summary

The current invention discloses a wound treatment device having a wound covering member, an applicator unit, and two lumens. The wound covering member may cover a wound. Sealing mechanism of the wound covering member may be used to form a sealed wound enclosure over and around the wound. The two lumens, including a negative pressure lumen and an oxygen lumen, connect the wound enclosure to the applicator unit. The applicator may be used to apply alternating and cycling negative pressure and oxygen to the wound enclosure, facilitating the wound healing process. The levels and durations of negative pressure, as well as the purity, amount, and durations of oxygen, may be adjusted by the applicator unit.