Non-invasive Pulsatile Circulatory Device with Fish-scale Pockets
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Solution Overview
Problem
Current non-invasive pulsatile circulatory assistance devices face challenges in precisely controlling and modulating pulsation waves across different body zones, leading to discontinuity in wave propagation and potential tourniquet effects that can harm endothelial cells and vessels.
Innovation Solution
A non-invasive pulsatile circulatory assistance device with a series of inflatable pockets, each with a flexible inner layer and a rigid outer layer, connected to a pulsation console, allowing for synchronized pulsatile waves that conform to body geometry, ensuring continuous and homogeneous propagation while allowing for precise control and modulation of pressures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple pockets are positioned adjacent to each other, then the distribution control of pulse wave is improved, but the continuity of pulse wave propagation deteriorates due to junction effects
Solution Approach 1:
The device divides the treatment area into multiple independent pockets (at least three pockets) that can be individually controlled. Each pocket can apply pulsatile pressure independently, allowing precise distribution control to different body zones while maintaining overall system functionality.
Solution Approach 2:
Each pocket is equipped with independent pressure control capabilities, allowing different pressure levels, frequencies, and waveforms to be applied to different body regions. This enables localized adaptation to specific anatomical requirements and pathological conditions of each treatment zone.
2Adaptability or versatility
If ECP systems create external counterpulsation, then blood flow direction control is improved, but harmful tourniquet effect on vessels increases
Solution Approach 1:
The device applies pulsatile pressure in periodic cycles that mimic physiological blood pressure waves. The pressure is applied rhythmically with controlled duration and intensity, avoiding continuous compression that would create harmful tourniquet effects while still directing blood flow appropriately.
Solution Approach 2:
The system dynamically adjusts pressure parameters (magnitude, duration, frequency, waveform) based on physiological feedback and treatment requirements. Pressure levels are modulated to remain within safe ranges that promote circulation without causing vessel compression or endothelial damage.
3Productivity
If pressotherapy applies significant compression, then lymphatic circulation activation is improved, but blood circulation impedment increases
Solution Approach 1:
The device employs dynamic pressure application with varying intensity levels throughout the treatment cycle. Pressure is applied in pulsatile waves that expand and contract, creating a pumping action that promotes both lymphatic and blood circulation without sustained compression that would impede flow.
Solution Approach 2:
The system maintains continuous pulsatile action across multiple pockets that work in coordination. The overlapping pressure waves ensure uninterrupted circulatory promotion throughout the treatment area, preventing stagnation while avoiding excessive localized compression.
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 provides a continuous, regular, and homogeneous propagation of pulsation waves, improving blood circulation, reducing endothelial stress, and enhancing cardiac function by increasing venous return and lymphatic drainage, thus addressing the limitations of existing systems.
Implementation Method 1
promote circulation of a blood volume in at least one part of a subject's body in the direction towards the subject's heart
Implementation Method 2
Each pocket has an inlet conduit for a pulsating fluid in fluidic connection with the means for generating a pulsation
Implementation Method 3
Each pocket includes a soft, elastic inner layer on the side facing the patient's body and a more rigid outer layer
Implementation Method 4
ensuring continuous and homogeneous propagation while allowing for precise control and modulation of pressures
Data Source
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AI summary
The invention relates to a non-invasive, pulsatile circulatory assistance device (1) designed to promote a circulation of a blood volume in at least one portion (Z) of the body of a subject, the device comprising: - a flexible structure (100) arranged so as to be applied to at least the portion of the body of the subject, comprising a series of paired adjacent pockets (100) extending along one another; and - means for generating (200) a physiologically synchronized pulsation, fluidly connected to the flexible structure in a sealed manner and arranged so as to create pulsation waves in the series of pockets between the internal and external layers, one of the paired adjacent pockets at least partially covering the other of the paired adjacent pockets (fish-scale mounting).