Sacral Gluteal Dressing with Occlusion Zone for Pressure Ulcer Prevention
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Solution Overview
Problem
Individuals, particularly hospital patients immobilized in bed, are susceptible to pressure ulcers in the posterior region extending from the sacrum to the ischeal tuberosities due to moisture and friction, with deep tissue injuries being difficult to detect until they break through the skin, leading to pain and infection.
Innovation Solution
A dressing with a moisture barrier layer and a connective element providing a zone of occlusion, comprising a sacral member and gluteal members with extensions, along with optional electrodes for muscle stimulation, designed to prevent pressure ulcers by managing moisture and reducing friction and shear.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a dressing provides comprehensive coverage across the entire posterior region to prevent pressure ulcers, then protection effectiveness is improved, but device complexity increases
Solution Approach 1:
The dressing is divided into multiple functional members: a sacral member for the sacral region, gluteal members for the gluteal regions, and extensions reaching toward the ischial tuberosities. Each member can be independently sized and shaped to fit specific anatomical areas, providing comprehensive coverage while maintaining manageable complexity through modular design
Solution Approach 2:
The dressing integrates multiple functions into a single device: moisture barrier protection, friction reduction, shear force mitigation, and pressure distribution. The connective element serves dual purposes as both a structural connector and a moisture-wicking layer, while extensions provide both anatomical coverage and muscle stimulation capabilities
2Reliability
If the dressing includes multiple functional layers and members for comprehensive protection, then protection effectiveness is improved, but ease of operation deteriorates
Solution Approach 1:
Multiple functional layers including moisture barrier layers, connective elements, and therapeutic layers are combined into a single integrated dressing assembly. The sacral member and gluteal members are connected through connective elements to form one cohesive unit that simplifies application and removal while maintaining all protective functions
Solution Approach 2:
The dressing utilizes flexible, conformable members that can be easily shaped to fit the patient's anatomy. The thin-film construction allows the dressing to flex with body movements and be easily positioned, while the integrated design ensures proper alignment during application
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 effectively prevents pressure ulcers by creating a barrier against environmental moisture, reducing friction and shear, and stimulating muscles to enhance tissue integrity, thereby reducing the risk of deep tissue injuries.
Implementation Method 1
a moisture barrier layer whose components include a sacral member, a left gluteal member and a right gluteal member
Implementation Method 2
The connective element is arranged to provide a zone of occlusion
Implementation Method 3
The dressing also includes electrodes and is a component of a dressing assembly which includes an exciter for stimulating gluteal muscles
Data Source
Figure 1
Figure 2
Figure 3A
AI summary
A dressing for guarding against the development of pressure ulcers has a recipient side and an environmental side. The dressing comprises a moisture barrier layer whose components include a sacral member, a left gluteal member and a right gluteal member. Each gluteal member has a base and an extension which extends longitudinally inferiorly further than the inferior edge of the sacral member by a dimension which is approximately no less than the longitudinal length of the sacral member. The dressing also includes a connective element on the recipient side of the dressing. The connective element is arranged to provide a zone of occlusion. In some embodiments the dressing includes electrodes and is a component of a dressing assembly which includes an exciter for stimulating gluteal muscles.