Wound Box Trainer Annular Cavity Tissue Simulation
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Solution Overview
Problem
Existing medical training devices, such as mannequins and wearable simulants, often constrain movement and compression of a wound structure when probed or packed, failing to adequately simulate the expansion and contraction of flesh and tissues, thus limiting their effectiveness as training tools.
Innovation Solution
A wound box trainer with a compressible body and a base that allows for movement and expansion of a wound structure within a carrying case, featuring an annular cavity that permits the simulation of tissue compression and expansion, along with a bleed tube for realistic blood flow simulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a simulant is disposed within a box-like structure for convenient transport and protection, then the simulant is protected and portable, but the box structure constrains movement and compression of the simulant when a wound cavity is probed or packed
Solution Approach 1:
The box structure is segmented into a rigid outer shell for protection and a compliant inner chamber or cushioning material that allows local deformation. This segmentation enables the box to provide overall structural protection while permitting the simulant to move and compress realistically during wound probing and packing operations.
Solution Approach 2:
The inner surface of the box or the material directly surrounding the simulant is made flexible rather than rigid. This flexible interface layer allows the simulant to expand, contract, and deform naturally when subjected to probing and packing forces, while the outer rigid box structure maintains protection and portability.
2Strength
If a simulant is constrained within a rigid housing, then the simulant is protected during transport, but the simulant cannot adequately simulate compression of flesh, tissues, and organs
Solution Approach 1:
The housing transitions from a static rigid structure to a dynamic system where the inner chamber or supporting material can change its compliance characteristics. During transport, the housing maintains rigidity for protection, but during training operations, it allows dynamic compression and expansion of the simulant to mimic tissue behavior.
Solution Approach 2:
The housing employs composite construction combining rigid materials for structural strength and protection with compliant materials for the inner chamber or interface layer. This composite structure enables simultaneous achievement of transport protection and realistic tissue compression simulation.
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
Enables realistic simulation of wound probing and packing by allowing the wound cavity to conform to gauze and other materials, enhancing the training experience by mimicking the movement and expansion of tissues and organs around a wound.
Implementation Method 1
a compressible body... whereby the case does not compromise movement and compression of the simulant immediately adjacent to a wound structure in response to probing and packing
Data Source
AI summary
A training device applicable to training personnel in the treatment of a traumatic injury is presented. The invention includes a compressible body, a base, a wound structure, and an annular cavity. The compressible body simulates a body portion. The compressible body resides within the base. The base is disposed about a top surface of the compressible body. The base is harder than the compressible body so that the base protectively covers the compressible body. The wound structure is disposed along the compressible body. The wound structure includes a wound cavity which extends from the top surface into the compressible body. The annular cavity extends into the compressible body about the wound cavity. The annular cavity permits movement and/or expansion of a wall defined by and between the wound cavity and the annular cavity when probed by a finger or instrument and packed with gauze, bandages, and the like during treatment of the wound structure to stem blood flow from a bleed tube.