Massage Finger Variable Frequency Oscillation
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Solution Overview
Problem
Current spinal massage devices lack variability in contact surface with the skin and fail to effectively mimic the manual massage's two-dimensional movement, leading to limited muscle relaxation due to constant vibration frequency and habituation effects.
Innovation Solution
A massage device with a drive motor that generates a variable frequency oscillation in the axial direction of the massage finger, allowing for alternating frequency changes between 1 and 24 Hz, and a massage finger with a variable contact surface that can simulate manual massage by changing the contact area and pressure distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a constant frequency vibration is applied to the massage finger, then the device structure is simple, but the muscle relaxation effect is limited due to habituation
Solution Approach 1:
The patent implements periodic action by alternating between two different vibration frequencies (first frequency and second frequency) in a cyclic manner. The control unit switches between frequencies based on predetermined time intervals or depth parameters, creating a periodic variation in vibration that prevents muscle habituation and enhances relaxation effectiveness.
Solution Approach 2:
The patent applies parameter changes by varying the vibration frequency parameter over time. The control unit adjusts the frequency between a first frequency and a second frequency, and also varies the depth parameter periodically. This dynamic parameter adjustment prevents the muscle from adapting to a constant stimulus, thereby maintaining effective relaxation throughout the massage session.
2Reliability
If a single contact surface is used for the massage body, then the device structure is simple, but the massage effectiveness is limited due to lack of variability in contact surface
Solution Approach 1:
The massage body is segmented into multiple distinct contact surfaces, each with different geometric characteristics. Instead of a single uniform surface, the patent divides the contact interface into multiple segments (first contact surface, second contact surface, etc.), allowing different portions of the massage body to engage with the muscle tissue in varying patterns.
Solution Approach 2:
The patent applies local quality by giving different geometric properties to different contact surfaces of the massage body. Each contact surface has specific local characteristics (different curvatures, angles, or surface features) that are optimized for particular massage needs, allowing the same massage body to provide varied contact qualities at different locations.
3Reliability
If the massage finger only moves in one direction, then the device structure is simple, but the simulation of manual massage is insufficient
Solution Approach 1:
The patent transitions from one-dimensional linear movement to two-dimensional or multi-dimensional movement of the massage finger. By adding lateral displacement capability alongside the primary axial movement, the system recreates the complex motion patterns of manual massage, including side-to-side motions and angular variations that mimic human hand movements.
Solution Approach 2:
The patent implements dynamic movement by allowing the massage finger to vary its motion characteristics during operation. The system adjusts not only the amplitude and frequency of vibration but also introduces variable lateral displacements and directional changes, creating a dynamic movement pattern that adapts to different massage requirements and better simulates manual therapy.
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 device effectively relaxes muscles by matching the resonant frequency of each muscle and providing a variable contact surface, preventing habituation and achieving a more comprehensive massage experience similar to manual therapy.
Implementation Method 1
indirectly transmits an adjustable basic oscillation with a constant amplitude in the axial direction to a massage finger
Implementation Method 2
The device effectively relaxes muscles by matching the resonant frequency of each muscle
Data Source
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AI summary
The invention relates to a device (1) for massaging or treating the muscles of the back and neck of a patient, comprising a housing (2) in which a drive motor (3) drives an annular crank track (6) by means of a gearbox (4). A lift motion acting on a massage finger (8) is generated by means of a guide unit (7). The geometric dimensions of the annular crank track determine the constant amplitude or the constant stroke of the massage finger (8) or of the massage head (83) thereof. The massage finger (8) is thus displaced at a constant amplitude, while the frequency is changed in accordance with a controller (10). The massage device (1) according to the invention works extremely quietly. The special construction thereof allows the resonant frequency of each muscle to be achieved.