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Motorized adaptive compression system for enhancing venous return: A feasibility study on healthy individuals
Mahan Rahimi1, Andrew P Blaber2, Carlo Menon1
1MENRVA Research Group, Schools of Mechatronic Systems Engineering and Engineering Science, Simon Fraser University, Metro Vancouver, BC V3T 0A3, Canada.
Medical Engineering & Physics
|November 6, 2017
Summary
A new motorized compression bandage effectively manages venous disorders by applying controlled pressure. This device improves hemodynamic responses, reducing orthostatic stress on the cardiovascular system.
Area of Science:
- Biomedical Engineering
- Cardiovascular Physiology
Background:
- Conventional compression devices for venous disorders have limitations affecting efficacy and patient adherence.
- Existing modalities often lack precise pressure control and reproducibility.
Purpose of the Study:
- To develop an improved compression system addressing the shortcomings of current devices.
- To design a motorized bandage capable of applying reproducible, controlled pressure to lower extremities.
Main Methods:
- A motorized bandage utilizing force-sensing resistors for continuous feedback was developed.
- A pilot study on 11 healthy participants assessed the device's impact on venous return.
- Lower body negative pressure simulated passive standing, with experiments conducted with and without calf compression.
Main Results:
- Hemodynamic responses significantly differed when the compression bandage was active (p < .05).
- Mean arterial pressure increased by 5%, diastolic blood pressure by 8%, and left ventricular ejection time by 4%.
- Heart rate decreased by 5% and pulse pressure by 6%.
Conclusions:
- The designed compression system effectively attenuates orthostatic stress on the cardiovascular system.
- The motorized bandage demonstrates potential for enhanced management of venous disorders and improved patient outcomes.
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