Phased Array Amplifier Current Steering for Limb-Sparing Infection Treatment
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Solution Overview
Problem
Existing treatments for bone or tissue infections, such as those caused by bacteria, viruses, or fungi, are often ineffective, leading to the need for amputation when antibiotics and surgery fail, and current methods cannot effectively target and destroy bacterial bio-membranes without damaging surrounding tissue.
Innovation Solution
A method and apparatus using a phased array amplifier system with multiple electrode shafts and a microprocessor or FPGA to dynamically steer electrical current vectors, applying DC current with varying waveforms and amplitudes to target and destroy infections while sparing healthy tissue.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If antibiotics and surgery are used to treat bone or tissue infections, then the infection may be temporarily controlled, but the treatment is ineffective against bacterial bio-films and may require amputation when failed
Solution Approach 1:
The patent replaces conventional mechanical/surgical intervention and chemical antibiotic treatment with an electrical field-based treatment system. The phased array amplifier system delivers controlled electrical current vectors directly to the infection site, using electroporation and resistive heating effects to destroy bacterial bio-films and infected tissue, thereby substituting ineffective mechanical/surgical methods with a targeted electrical therapy approach that preserves the limb.
Solution Approach 2:
The system dynamically adjusts multiple parameters including current amplitude, frequency, pulse duration, and vector orientation to optimize treatment effectiveness. By changing electrical parameters in real-time based on tissue properties and infection depth, the system overcomes the fixed-dose limitations of antibiotics and the destructive nature of surgery, achieving reliable eradication of infections while minimizing tissue damage.
2Reliability
If high energy is applied to destroy bacterial bio-membranes, then infection eradication is improved, but surrounding healthy tissue is damaged
Solution Approach 1:
The phased array system creates highly localized electrical current vectors that concentrate energy precisely at the infection site through constructive interference of multiple electrode fields. By adjusting phase and amplitude of individual electrodes, the system delivers high energy density only where needed to disrupt bio-membranes, while surrounding healthy tissue receives minimal energy exposure, thus achieving selective destruction of infected tissue without collateral damage.
Solution Approach 2:
The patent introduces a computer-controlled phased array amplifier system as an intermediary between the power source and the tissue. This intermediary precisely controls the distribution of electrical energy, modulating current vectors to target infected areas while protecting healthy tissue. The system acts as a smart mediator that translates raw electrical power into selective, controlled therapeutic effects based on real-time feedback and pre-programmed treatment protocols.
3Reliability
If conventional electrical therapy is applied to treat infections, then some bacterial destruction occurs, but the current cannot be dynamically steered to target specific infection areas
Solution Approach 1:
The system employs dynamic current steering capability where the phased array amplifiers can electronically redirect current vectors in real-time without physical movement of electrodes. By dynamically adjusting phase and amplitude of each electrode, the system can sweep, rotate, or concentrate current vectors to target infections of any shape or depth, providing adaptability to various infection geometries and locations that static electrical therapy cannot achieve.
Solution Approach 2:
The phased array amplifier system serves multiple functions: it can deliver monophasic or biphasic waveforms, adjust frequency and amplitude, steer current vectors in three-dimensional space, and adapt to different infection types and locations. This multi-functional capability replaces the need for multiple specialized devices, providing universal treatment for various infection scenarios with a single versatile system.
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
Effectively eradicates bacterial, viral, or fungal infections by disrupting bio-membranes with minimal damage to surrounding tissue, allowing for rapid healing and reducing the need for amputation.
Implementation Method 1
applying sufficient DC electrical voltage and current in dynamically and proportionally steered current vectors to heat and/or electrically stimulate the defined area to destroy the bacterial, viral, or fungal infections
Implementation Method 2
electrical stimulation (ES) using low DC current on the order of microamps to milliamps at low or high voltage to disrupt the bio-membranes that encase bacterial colonies or to destroy any virus or fungus
Data Source
AI summary
A method and apparatus for treating bone or other infection in a patient to minimize the number of limb amputations which employs a unique, three-dimensional software-controlled electronic phased array amplifier system using arbitrary waveforms that dynamically and proportionally steer electrical currents by using two or more current vector paths, sequentially or simultaneously, through a defined infected area containing electrically-conductive ionic solutions so as to obtain 100% treatment using low or high voltage, low current that delivers electrical stimulation (ES) using a low DC current through and or around the defined infection treatment area. The minimally invasive treatment of the infection requires no radiation or chemotherapy that could be harmful to the patient.