Hospital Bed Rehabilitation Pedal Structure for Limb Assessment
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Solution Overview
Problem
Hospitalized patients often lack access to rehabilitation equipment due to limited space in hospital rooms, leading to reduced mobility and muscle strength deterioration, with existing devices unable to accurately assess individual limb movement abilities.
Innovation Solution
A rehabilitation pedal structure for hospital beds featuring a pivotally mounted bottom plate with two independent pedals connected to monitors and a counter, allowing individual operation and monitoring of foot or hand exercises.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If rehabilitation equipment is added to hospital rooms, then patient exercise and rehabilitation capability is improved, but device complexity and space requirements increase
Solution Approach 1:
The rehabilitation device is divided into two independent pedals that can be operated separately, allowing individual assessment of each limb while maintaining a compact integrated structure. This segmentation enables versatile rehabilitation exercises without requiring multiple separate devices, thus improving adaptability while controlling complexity.
Solution Approach 2:
The pedal structure serves multiple functions: it can be used for both foot and hand exercises, provides individual limb assessment, and integrates with the hospital bed frame. This multi-functionality allows one device to replace multiple separate rehabilitation tools, improving versatility without proportionally increasing complexity.
2Measurement precision
If conventional interconnected pedals are used, then device simplicity is maintained, but measurement precision of individual limb ability is lost
Solution Approach 1:
The pedals are designed as independent units with separate counting mechanisms, allowing each limb's movement to be measured individually. This segmentation provides precise measurement of individual limb capabilities while maintaining relatively simple pedal structures that do not require complex interconnections.
Solution Approach 2:
Each pedal has an independent counter that provides immediate feedback on the number of movements performed by each limb. This feedback mechanism enables precise measurement and comparison of individual limb abilities without requiring complex external monitoring equipment or complicated pedal mechanisms.
3Loss of information
If patients exercise without monitoring equipment, then device simplicity is maintained, but loss of information about exercise capacity occurs
Solution Approach 1:
The counting mechanism provides immediate visual feedback on exercise capacity through monitors that display the number of pedal movements. This feedback system captures and preserves exercise capability information without requiring complex external monitoring equipment, as the counting function is integrated directly into the pedal structure.
Solution Approach 2:
The device monitors and records exercise capacity data automatically through integrated counters and displays, eliminating the need for external monitoring equipment or manual recording by healthcare providers. This self-service capability preserves exercise information while maintaining device simplicity.
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 accurate assessment of limb movement abilities, facilitating personalized exercise and rehabilitation plans based on individual performance, enhancing medical care quality.
Implementation Method 1
two pedals (21) elastically and pivotally mounted on two sides of the bottom plate (2)
Data Source
AI summary
A rehabilitation pedal structure for a hospital bed includes a footboard, a bottom plate pivotally mounted on two sides of the footboard, and two pedals elastically and pivotally mounted on the bottom plate. The footboard is provided with a slot. The bottom plate is pivotally mounted in the slot. The two pedals can be received in the slot. Each of the pedals is electrically connected with one of two monitors, a counter, and a microcontroller. The counter performs a counting action. When the two pedals are respectively stepped or pressed by a user's two feet or hands, the two pedals swing relative to the bottom plate respectively, and the two monitors indicate a swinging number of the two pedals respectively, to facilitate detection of exercise capacity and rehabilitation times of the user's two feet or hands.