Formed 3D Textile Dressings for Joint Negative Pressure Therapy
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing negative pressure therapy systems fail to effectively treat joint injuries by providing adequate circulation and reducing swelling and inflammation due to limitations in design and material properties.
Innovation Solution
A negative pressure dressing designed with a compressive layer that collapses laterally and vertically under negative pressure, generating upward lifting forces to improve blood and lymph fluid circulation, featuring a sealing layer, compressive layer, and optional non-adherent layer, adapted to conform to joint areas and provide vertical and lateral compression.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional negative pressure dressing is used, then negative pressure can be applied to the wound site, but adequate circulation improvement and swelling reduction at joint injuries cannot be achieved
Solution Approach 1:
The compressive layer is designed to dynamically collapse and deform in response to applied negative pressure, transforming the static dressing into an active system that adapts its shape and compression pattern to the joint anatomy and movement, thereby improving both treatment efficacy and adaptability
Solution Approach 2:
The invention introduces a third dimension of compression by designing the compressive layer to collapse not only vertically but also laterally, creating multi-directional compression that generates lifting forces perpendicular to the joint surface, enhancing circulation and swelling reduction beyond what conventional single-direction compression achieves
2Reliability
If a compressive layer that collapses under negative pressure is used, then lifting forces are generated to improve circulation, but the device complexity increases
Solution Approach 1:
The compressive layer utilizes changes in material parameters (compressibility, collapse characteristics) under negative pressure to generate the desired lifting forces, transforming a simple material property change into a complex mechanical action that improves circulation without adding structural complexity
Solution Approach 2:
The compressive layer is designed to automatically collapse and generate lifting forces in response to negative pressure application, eliminating the need for external actuation mechanisms or complex control systems, thereby achieving circulation improvement while maintaining relatively simple device structure
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
Enhances circulation and reduces swelling and inflammation at joint treatment sites by generating lifting forces through a combination of vertical and lateral compression, improving treatment efficacy.
Implementation Method 1
negative pressure therapy (NPT) system adapted to provide NPT to treat joint injuries
Implementation Method 2
compressive layer that collapses laterally and vertically under negative pressure, generating upward lifting forces
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A system for applying negative pressure to a joint positioned in a treatment area. The system includes a negative pressure dressing. The negative pressure dressing includes a compressive layer and a sealing layer. The compressive layer includes a first surface and a second, treatment area-facing. The compressive layer further includes a first elongated portion configured to be positioned proximate the joint. The first elongated portion includes a first end and a second end. The compressive layer further includes a second elongated portion spaced from the first elongated portion and configured to be positioned proximate the joint. The second elongated portion includes a first end and a second end. The compressive layer further includes an interconnecting portion extending between the first elongated portion and the second elongated portion. The interconnecting portion is configured to overlie at least a portion of the joint. The compressive layer further includes a plurality of channels formed in the first surface and extending proximate the second surface. The plurality of channels is formed in at least one of the first end and the second end of the first elongated portion and at least one of the first end and the second end of the second elongated portion. The sealing layer is configured to form a seal around a perimeter of the negative pressure dressing.