Knee Rehabilitation Frame Using Gravitational Flexion
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Solution Overview
Problem
Post-surgical or medical treatment for knee injuries and diseases often results in impaired knee mobility due to muscular swelling, scar tissue, and trauma, leading to limited range of motion and stiffness, for which existing physical therapy methods may be insufficient in restoring natural motion.
Innovation Solution
A system and method utilizing a support mechanism with a substantially rectangular frame that engages the thigh at the popliteal space and utilizes gravitational force to facilitate knee flexion, combined with optional straps for additional user force, allowing the knee to bend inward and promoting mobility through adjustable angles and padded support for comfort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If physical therapy is provided to restore knee motion, then knee mobility is improved, but the patient experiences discomfort and limited accessibility
Solution Approach 1:
The device enables patients to perform knee rehabilitation exercises independently at home without requiring professional therapist assistance. The gravitational force automatically provides the therapeutic action when the patient positions themselves on the device, making the therapy self-administered and continuously accessible.
Solution Approach 2:
The device utilizes gravitational force by positioning the knee at an elevated angle (20-90 degrees) relative to the floor, creating a natural force field that assists knee flexion. This eliminates the need for additional mechanical force application devices, making the therapy comfortable and easily accessible.
2Reliability
If the knee is supported at elevated angles for therapy, then knee mobility is improved, but the device complexity increases
Solution Approach 1:
The device is divided into distinct functional segments: an elevated support surface for positioning the knee at therapeutic angles, a frame structure with side members and cross members for structural support, and a strap for securing the lower leg. This segmentation allows each component to perform its specific function while maintaining overall simplicity.
Solution Approach 2:
The frame structure serves multiple functions simultaneously: it provides structural support for the elevated knee position, positions the knee at the required angle for therapy, and supports the weight of the patient's leg during exercise. This multi-functionality reduces the need for additional components.
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 system effectively improves knee mobility by allowing controlled flexion and extension exercises, reducing strain on muscles and promoting natural motion, making it suitable for rehabilitation and maintenance in various settings.
Implementation Method 1
said frame configured for inducing a knee of the treated leg of the user to bend inwards in response to gravitational force affecting a lower portion of the treated leg
Data Source
AI summary
The invention may be embodied in a physical therapy or health maintenance stretching system including a frame configured for engaging a treated leg of a user at or near the popliteal space of the treated leg to allow a knee of the treated leg to bend inwards in response to gravitational force affecting a lower portion of the treated leg. The frame may be further configured to allow a knee of the treated leg to bend inwards in response to a user force directly or indirectly applied to the lower portion of the treated leg.