Cable-Based Orthopedic Bracing with Ratchet Adjustment
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Solution Overview
Problem
Conventional orthopedic braces are uncomfortable, difficult to adjust during activity, prone to wear and tear, and have rough edges that irritate the skin, with fabric hook-and-loop fasteners like VELCRO® wearing out quickly and sticking to clothing.
Innovation Solution
A cable-based orthopedic bracing system with a frame, a cable interconnected to the frame, and an adjustment mechanism, such as a ratchet, that allows for easy tightening and loosening, using eyelets and a sheath to guide the cable and protect the body material, providing a snug and uniform fit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If fabric hook-and-loop fasteners are used to secure the brace, then the brace can be easily attached and removed, but the fasteners wear out quickly and irritate the skin
Solution Approach 1:
The patent removes the problematic fabric hook-and-loop fasteners from the system and replaces them with a cable-based adjustment mechanism. The cable system with ratchet mechanism provides the necessary securing function without the skin irritation and durability issues of fabric fasteners, while maintaining ease of operation through simple cable tightening and releasing actions.
2Reliability
If long straps surround the entire knee to provide support, then the brace offers comprehensive stabilization, but the user must undo and redo entire straps to tighten the brace
Solution Approach 1:
The patent divides the continuous strap system into segmented cable sections that can be independently adjusted. Instead of requiring the user to manipulate long entire straps, the cable system allows localized adjustment at specific points around the knee, maintaining comprehensive stabilization while dramatically simplifying the tightening process to simple cable tensioning actions.
3Reliability
If the brace is adjusted to desired tightness for activity, then proper support is provided, but the brace becomes too tight during rest periods
Solution Approach 1:
The patent implements a dynamic adjustment system where the cable tension can be easily modified in real-time. The ratchet mechanism allows the user to tighten the cable during activity for proper support, then quickly release and loosen the cable during rest periods. This dynamic adaptability enables the brace to respond to changing physiological conditions without requiring complex automated systems.
4Reliability
If rigid frame portions are used to provide structural support, then the brace maintains its shape and provides stability, but the frame may cause discomfort and pressure points
Solution Approach 1:
The patent applies different material properties to different parts of the brace system. The rigid frame portions maintain structural stability where needed, while soft body material contacts the skin to eliminate discomfort and pressure points. The cable system provides adjustable tension without direct skin contact, combining the benefits of rigidity for support with softness for comfort at the interface with the user's body.
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 cable-based system is more comfortable, easier to use, simpler to adjust, and longer lasting than conventional braces, with reduced wear and tear, and a more secure fit that adapts to muscle swelling and contraction.
Implementation Method 1
an adjustment mechanism for adjusting the tightness level of the cable. Typically, the portions of the frame are rigid and are rotatably connected by at least one a hinge. In some embodiments, the orthopedic bracing system further comprises body material connected to the frame. In certain embodiments, the adjustment mechanism comprises a ratchet.
Data Source
AI summary
An orthopedic bracing system for providing support to a joint of an individual is provided. The bracing system includes a frame configured to conform to the individual's body and configured to contact the individual such that it can provide support to the joint. The frame has at least two portions configured to connect at least a first part of the individual's body to a second part of the individual's body. The bracing system further includes a cable interconnected to the frame, and an adjustment mechanism for adjusting the tightness level of the cable.