Portable Bioimpedance Compression Device for Dynamic Lymphedema Therapy
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Solution Overview
Problem
Current lymphedema treatment methods using intermittent pneumatic compression devices require patients to wear bulky and uncomfortable compression garments and be tethered to a stationary pump, limiting mobility and comfort, and lack the ability to monitor treatment progress or adjust therapy dynamically.
Innovation Solution
A portable compression device with inflatable chambers, a pneumatic pump, a bioimpedance analyzer, and a microcontroller that applies sequential pneumatic compression based on real-time body impedance measurements, allowing for adjustable pressure and duration of treatment, and providing feedback on swelling reduction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a stationary pump and bulky compression garment are used, then effective compression can be achieved, but patient mobility and comfort are reduced
Solution Approach 1:
The compression garment is divided into multiple inflatable chambers that can be independently controlled by portable pumps, allowing the system to be broken down from a single stationary unit into modular portable components that maintain compression effectiveness while enabling patient mobility
Solution Approach 2:
The system replaces the mechanical tethering to a stationary pump with portable battery-powered pneumatic pumps that can be worn on the patient's body, eliminating the need for external mechanical connections and allowing free movement while maintaining compression therapy
2Reliability
If a stationary pump is used, then compression therapy can be applied, but the device complexity and patient convenience are reduced
Solution Approach 1:
The pump system is extracted from the stationary external location and integrated into portable units that can be worn on the patient's body, removing the dependency on external infrastructure and reducing overall system complexity for the patient
Solution Approach 2:
The portable compression device integrates multiple functions including compression therapy, bioimpedance monitoring, and data tracking into a single wearable system, eliminating the need for separate stationary equipment and improving patient convenience
3Ease of operation
If manual monitoring is used, then treatment can be applied, but the ability to dynamically adjust therapy and monitor progress is limited
Solution Approach 1:
The system incorporates bioimpedance sensors that continuously measure swelling and provide feedback to the control system, enabling automatic adjustment of compression parameters based on real-time physiological data and improving monitoring precision
Solution Approach 2:
The device performs self-monitoring and self-adjustment through integrated bioimpedance analysis and automated pump control, eliminating the need for manual measurement and adjustment while improving the precision and continuity of 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 enhances mobility and comfort by eliminating the need for bulky garments, provides effective lymphatic fluid movement, and enables precise monitoring and adjustment of treatment, improving lymphedema management through dynamic compression therapy.
Implementation Method 1
Body impedance values are received from the sensors by a bio impedance circuit connected to a microcontroller
Implementation Method 2
The sleeve can have a plurality of inflatable chambers. Instructions are sent from the microcontroller to a plurality of pumps based on the values received by the bio impedance circuit. The inflatable chambers are inflated in a sequence and to a pressure level based on the instructions from the microcontroller
Data Source
AI summary
Provided herein are compression devices and methods of use thereof, and methods of treatment for patients with edema. The compression device can include a sleeve having a plurality of inflatable chambers and at least one pneumatic pump that can be coupled to at least one inflatable chamber. The device can also include a portable bio impedance analyzer, a microcontroller and a battery. The battery can power the microcontroller and the at least one pneumatic pump and the microcontroller can control the both the portable bio impedance analyzer and the at least one pneumatic pump. The device can be used to treat a patient. Body impedance values are received from the sensors. The inflatable chambers are inflated in a sequence and to a pressure level based on the instructions from the microcontroller when the body impedance values meet a first predefined threshold.