Orthopedic Adhesive Surface With Pneumatic Release and Repositioning
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Solution Overview
Problem
Existing orthopedic devices with adhesive surfaces make it difficult to fit and remove components due to the need for relative movements, limiting their ease of use and allowing only slight corrections.
Innovation Solution
Incorporating recesses in the orthopedic device with pressure and suction ports to allow the adhesive regions to be switched between contact and non-contact states, enabling easy fitting and adjustment without compromising functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If adhesive surfaces are provided on the orthopedic device to prevent relative movement and maintain stable position, then the reliability and stability of the device are improved, but the ease of operation deteriorates because fitting and removing the device becomes difficult
Solution Approach 1:
The adhesive region's contact state is made dynamic and switchable between contact and non-contact states with the skin surface. By applying negative pressure through suction ports, the adhesive region is pulled away from the skin surface into recesses, reducing adhesion. By applying positive pressure through pressure ports, the adhesive region is pushed back into contact with the skin surface, increasing adhesion. This dynamic control allows easy fitting/removal when non-contact and stable positioning when contact is required.
Solution Approach 2:
The device incorporates pressure ports and suction ports that utilize pneumatic pressure to control the adhesive region's contact state. Negative pressure (vacuum) through suction ports creates a pressure differential that pulls the adhesive region away from the skin. Positive pressure through pressure ports pushes the adhesive region back into contact. This pneumatic mechanism provides simple and effective control over the adhesive force without requiring mechanical manipulation.
2Reliability
If adhesive surfaces are provided to prevent slipping or sliding of the orthopedic device on the limb, then the stability is improved, but the ease of operation worsens as subsequent corrections require unrolling and re-rolling the entire device
Solution Approach 1:
The adhesive region's contact state is made dynamic and switchable between contact and non-contact states with the skin surface. By applying negative pressure through suction ports, the adhesive region is pulled away from the skin surface into recesses, reducing adhesion. By applying positive pressure through pressure ports, the adhesive region is pushed back into contact with the skin surface, increasing adhesion. This dynamic control allows easy fitting/removal when non-contact and stable positioning when contact is required.
Solution Approach 2:
The device incorporates pressure ports and suction ports that utilize pneumatic pressure to control the adhesive region's contact state. Negative pressure (vacuum) through suction ports creates a pressure differential that pulls the adhesive region away from the skin. Positive pressure through pressure ports pushes the adhesive region back into contact. This pneumatic mechanism provides simple and effective control over the adhesive force without requiring mechanical manipulation.
3Reliability
If the adhesive region is designed to bear directly on the skin surface to maintain stable position, then the reliability is improved, but the ease of manufacture worsens due to the complexity of integrating switchable adhesion mechanisms
Solution Approach 1:
The first surface serves multiple functions: it provides structural support as part of the device body, contains the adhesive region for positioning, and acts as a barrier to the pneumatic system. The recesses in the device body serve both as structural features and as the mechanism for controlling adhesive contact. The pressure and suction ports provide a universal interface for both fitting (negative pressure) and securing (positive pressure) the device.
Solution Approach 2:
The adhesive region is nested within recesses in the device body, allowing it to be pulled away from the skin surface while remaining structurally integrated. The pneumatic control system is nested within the device body with ports that access the internal pressure chamber. This nested arrangement maintains a relatively simple external device structure while incorporating the switchable adhesion mechanism internally.
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 easy fitting and adjustment of orthopedic devices by reducing adhesive contact when needed, allowing for smooth movement and stable adhesion when required, enhancing user convenience.
Implementation Method 1
when a negative pressure is applied in the at least one recess and/or to be pushed out when a positive pressure is applied
Implementation Method 2
The adhesive forces described are deliberately applied in order to avoid relative movements
Implementation Method 3
to be pushed out when a positive pressure is applied
Data Source
AI summary
The invention relates to an orthopedic device comprising a main part with a first surface which is provided with at least one adhesive region. At least one recess is provided in the main part, said at least one recess being at least partly formed behind the adhesive region and being provided with a pressure and/or suction connection. The first surface is designed to be at least partly suctioned into the recess when negative pressure is applied in the at least one recess and/or pushed out when positive pressure is applied.