Appropriate Pressure Determination for Blood Flow Restriction
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Solution Overview
Problem
Existing muscle strength enhancement methods involving blood flow restriction often cause anxiety and safety issues due to excessive arterial pulsation and variability in determining appropriate compression pressure, leading to inconsistent and potentially harmful outcomes.
Innovation Solution
A device and method for determining an appropriate pressure for muscle strength enhancement that includes a constricting band with a gas bladder, pressure control means, and pulse wave measuring means to specify a maximum pulse wave pressure and calculate an appropriate pressure smaller than the maximum, reducing anxiety and ensuring safety by avoiding excessive arterial hemostasis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If compression pressure is increased to achieve vein hemostasis and muscle strengthening, then muscle strengthening effect is improved, but arterial pulsation becomes excessive causing anxiety and safety issues
Solution Approach 1:
The device uses pulse wave measuring means to continuously monitor arterial pulsation and provides feedback to the pressure control means. The system automatically adjusts compression pressure based on real-time pulse wave data, ensuring pressure remains within the safe range that prevents excessive arterial pulsation while maintaining vein hemostasis for muscle strengthening.
Solution Approach 2:
The system dynamically changes the compression pressure parameter based on individual pulse wave characteristics. By measuring pulse wave amplitude and frequency, the system determines the optimal pressure range for each user, transforming the fixed pressure approach into a variable parameter system that adapts to individual physiological differences.
2Reliability
If compression pressure is determined based on expert experience, then appropriate pressure can be selected, but determination variability and instability increase
Solution Approach 1:
The system performs self-determination of appropriate compression pressure by automatically measuring the user's pulse wave and calculating the optimal pressure range. The pressure determination means uses the measured pulse wave data to autonomously select the appropriate pressure without requiring expert intervention, making the system self-sufficient and consistent.
Solution Approach 2:
The patent replaces the manual expert judgment process with an automated electronic measurement and calculation system. Pulse wave measuring means and pressure determination means use optical or electrical sensors to detect physiological signals and compute optimal pressure, substituting human expert experience with objective measurement-based automation.
3Productivity
If compression pressure is set to achieve maximum pulse wave amplitude, then arterial blood flow is optimized, but resonance occurs in blood vessels causing safety issues
Solution Approach 1:
The system applies partial compression pressure that achieves sufficient vein hemostasis and muscle strengthening without reaching the excessive pressure level that causes arterial resonance. By applying only the necessary amount of pressure (not maximum), the system avoids blood vessel resonance while maintaining therapeutic effectiveness.
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 solution provides a safer and more effective muscle strength enhancement method by determining a suitable compression pressure that minimizes anxiety and fear while maintaining sufficient muscle strengthening effects, suitable for a wide range of users with reduced variability and instability.
Implementation Method 1
a gas bladder provided on or in the band, the gas bladder being for applying a predetermined compression pressure to the predetermined portion to compress the predetermined portion by being filled with a gas
Implementation Method 2
pulse wave measuring means for measuring a predetermined parameter and generating pulse wave data for the parameter near the predetermined portion or on a distal side from the predetermined portion, the predetermined parameter varying depending on a fluctuation of the magnitude of a pulse wave in an artery
Data Source
AI summary
A method of determining a more suitable appropriate pressure for use in muscle strength enhancement methods involving the restriction of blood flow.The pressure of air in a gas bladder of a compression band is temporarily increased to a pressure higher than a presumed appropriate pressure and then gradually reduced. During this process, a pulse wave amplitude is measured, and a maximum pulse wave pressure, which is the pressure of the air in the gas bladder at a time when the pulse wave amplitude that is temporarily increased and then reduced has its maximum value is specified by a maximum pulse wave pressure specifying unit 12E. The unit 12E sends maximum pulse wave pressure data representing a maximum pulse wave pressure to an appropriate pressure calculating unit 12F. The unit 12F multiplies the maximum pulse wave pressure by a coefficient to obtain an appropriate pressure.