Phased Array Current Steering for Bone Infection Biofilm Eradication
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Solution Overview
Problem
Existing treatments for bone or tissue infections, particularly those resistant to antibiotics, often require amputation when conventional therapies fail, necessitating a more effective method to eradicate bacterial, viral, or fungal infections without extensive surgical intervention.
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 and thermal therapy to target and destroy bacterial bio-membranes while sparing healthy tissue.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional antibiotic therapy and surgery are used to treat bone or tissue infections, then the treatment approach is simple and widely available, but the treatment fails when bacteria develop resistance and ultimately requires amputation
Solution Approach 1:
The patent replaces conventional mechanical surgical intervention and chemical antibiotic therapy with an electrical field-based treatment system. The phased array amplifier system applies controlled electrical currents to create thermal and non-thermal effects that directly kill bacteria, viruses, and fungus without relying on antibiotics or extensive surgery.
Solution Approach 2:
The system dynamically adjusts multiple parameters including voltage amplitude, current density, pulse duration, and frequency to optimize treatment effectiveness. The phased array amplifiers can vary these parameters in real-time to target different types of infections and tissue depths, allowing adaptation to resistant bacterial strains that fail conventional treatments.
2Reliability
If extensive surgical intervention and prolonged antibiotic courses are applied, then the treatment coverage is comprehensive, but the treatment time is extended to three to six weeks and tissue damage increases
Solution Approach 1:
The system employs pulsed electrical therapy with specific pulse durations and frequencies that maximize bacterial killing while minimizing tissue damage. The periodic application of electrical fields allows for efficient energy delivery and heat generation that rapidly eliminates infections, potentially reducing treatment time from weeks to days or even hours.
Solution Approach 2:
The electrical therapy induces thermal effects that can cause phase transitions in bacterial cell membranes and proteins, leading to rapid cell death. The controlled heating from electrical currents denatures bacterial proteins and disrupts membrane structures, providing a mechanism for quick infection eradication without prolonged exposure.
3Reliability
If high electrical current is applied to destroy bacterial bio-membranes, then the infection eradication is effective, but healthy tissue may be damaged
Solution Approach 1:
The phased array amplifier system creates highly localized electrical fields that concentrate energy precisely at the infection site. By controlling current density and distribution, the system delivers destructive electrical stress to bacterial bio-membranes while sparing surrounding healthy tissue through selective field placement and intensity modulation.
Solution Approach 2:
The system incorporates monitoring and control mechanisms that adjust electrical parameters in real-time based on tissue response. This feedback control allows the system to maintain effective treatment currents while preventing excessive heating or damage to healthy tissues, optimizing the balance between infection destruction and tissue preservation.
4Measurement precision
If multiple electrode shafts and phased array amplifiers are used to steer current vectors, then the treatment precision is improved, but the device complexity and cost increase
Solution Approach 1:
The system divides the treatment field into multiple discrete electrode shafts, each controlled by independent amplifiers. This segmentation allows precise control of current vectors by adjusting individual electrode outputs, enabling accurate targeting of three-dimensional infection volumes while maintaining manageable system architecture through modular design.
Solution Approach 2:
The phased array system extends treatment from two-dimensional surface application into three-dimensional space by using multiple electrode shafts positioned at different depths and angles. This spatial dimensionality allows current vectors to be steered through volumetric infection regions, providing precise targeting capability that conventional single-plane electrode systems cannot achieve.
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
This approach effectively reduces or eliminates infections in bones and tissues by disrupting bacterial bio-membranes, allowing for quicker healing and minimizing tissue damage, with the potential for repeated treatments and avoiding amputation.
Implementation Method 1
applying sufficient DC electrical voltage and current in dynamically and proportionally steered current vectors to resistively and/or electrically stimulate the defined area and eradicate the bacterial bio-films, bacteria, viruses, or fungus causing infections
Implementation Method 2
dynamically and proportionally steering electrical current vectors to a predetermined defined area to resistively and/or electrically stimulate the defined area and eradicate the bacterial bio-films, bacteria, viruses, or fungus causing infections
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.