Porous Microbe Trapping Structure for Antibiotic-Free UTI Control
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Solution Overview
Problem
The rise of antibiotic resistance due to overuse poses a significant threat to public health, particularly in urinary tract infections, necessitating an alternative approach to reduce bacterial load effectively.
Innovation Solution
A trapping device comprising a porous polymeric structure with a proximal and distal end, optionally featuring holes or cores, is designed to mechanically entrap microbes using biocompatible polymers like polycaprolactone or polylactic acid, augmented with silver nanoparticles for bactericidal activity, and can be deployed in the urinary bladder to treat infections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If suppressive antibiotics are used to decrease bacterial colonization, then the incidence of UTI is reduced, but antibiotic resistance develops
Solution Approach 1:
The patent replaces the chemical mechanism of antibiotics with a mechanical trapping system. The porous polymeric structure physically captures bacteria through size-exclusion mechanisms, preventing them from colonizing the urinary tract without using antimicrobial chemicals that drive resistance
Solution Approach 2:
The invention employs a porous polymeric structure with controlled pore sizes that selectively trap bacteria based on their physical dimensions. The porous architecture allows the device to capture pathogenic bacteria while permitting smaller molecules like nutrients and signaling compounds to pass through, maintaining a selective barrier that prevents colonization without antibiotic pressure
2Ease of operation
If indwelling urinary catheters are used, then urinary tract access is provided, but bacterial colonization risk increases by 3-10%
Solution Approach 1:
The porous polymeric structure serves as an intermediary barrier between the catheter and the urinary environment. It allows the catheter to maintain urinary access while the porous structure actively traps bacteria, preventing them from establishing colonization on the catheter surface or in the urinary tract
Solution Approach 2:
The porous architecture provides a physical filtering mechanism that captures bacteria while allowing urine flow. The interconnected pores are sized to retain bacterial cells through adsorption and size-exclusion, creating a protective barrier that reduces colonization risk associated with indwelling catheters
3Reliability
If broader spectrum antibiotics are used to treat resistant infections, then treatment coverage is improved, but microbiome disruption and opportunistic infections increase
Solution Approach 1:
The patent replaces chemical broad-spectrum antibiotics with a mechanical filtration approach. The porous structure physically traps target bacteria based on size exclusion, providing treatment coverage through physical removal rather than chemical killing, thereby preserving the microbiome and preventing opportunistic infections
Solution Approach 2:
The device provides localized bacterial trapping at the site of application (urinary tract or catheter surface). The porous structure creates a localized barrier that captures pathogenic bacteria where needed, without the systemic effects of broad-spectrum antibiotics that disrupt the broader microbiome
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 effectively traps and kills bacteria, reducing bacterial load and preventing infections such as UTIs, while avoiding the development of resistance, and is adaptable for various geometries and sizes for easy deployment.
Implementation Method 1
The porous structure mechanically traps the bacteria
Implementation Method 2
The device comprises silver nanoparticles which provide bactericidal property to the device
Data Source
AI summary
The present disclosure provides a trapping device for trapping microbes, the device comprises a porous polymeric structure with a proximal end and a distal end, wherein the proximal end and the distal end is optionally provided with a hole or core on the 5 longitudinal direction. The present disclosure also provides a process of preparing the device and implementations thereof.