Integrated Cartridge for Nucleic Acid Homogenization and Fragmentation
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Solution Overview
Problem
Current laboratory-based nucleic acid detection techniques require manual and separate steps for sample preparation, which are not feasible in point-of-care settings, especially during emergencies or in areas lacking trained personnel and specialized equipment.
Innovation Solution
An integrated cartridge system that automates sample homogenization and nucleic acid fragmentation, using a sonication feature with a sonotrode and temperature regulation, allowing for compact, portable, and affordable point-of-care testing by integrating these steps into a single device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual separate steps for sample preparation are used, then reliability of nucleic acid detection is improved, but device complexity and ease of operation worsen
Solution Approach 1:
The patent combines multiple separate sample preparation steps (homogenization, fragmentation, purification) into a single integrated cartridge system. The cartridge integrates a homogenization chamber with beads, a fragmentation chamber with sonication capability, and a purification chamber with magnetic bead separation, allowing all steps to be performed sequentially in one device rather than requiring multiple separate manual operations.
Solution Approach 2:
The integrated cartridge serves multiple functions within a single device: it performs mechanical homogenization using beads, ultrasonic fragmentation using a sonotrode, magnetic purification using magnetic beads, and nucleic acid detection. This multi-functional design eliminates the need for separate specialized equipment for each step.
2Manufacturing precision
If manual separate steps for sample preparation are used, then manufacturing precision is improved, but ease of operation worsens
Solution Approach 1:
The patent replaces manual mechanical operations with automated mechanisms. The sonication feature with sonotrode provides controlled ultrasonic energy for precise fragmentation without requiring manual manipulation, and the magnetic bead separation automates the purification process that would otherwise require manual pipetting and handling.
Solution Approach 2:
The cartridge incorporates dynamic elements including the sonication feature that can be activated to provide controlled ultrasonic energy, and the magnetic separation capability that can be engaged on demand. These dynamic features allow precise control of the fragmentation and purification processes while maintaining ease of operation through automated activation.
3Ease of operation
If integrated automated sample preparation is used, then ease of operation is improved, but device complexity increases
Solution Approach 1:
The patent divides the integrated cartridge into distinct functional chambers: a homogenization chamber containing beads, a fragmentation chamber with sonication capability, and a purification chamber with magnetic beads. This segmentation allows each function to be independently optimized while maintaining overall integration, making the complex system more manageable and easier to operate.
Solution Approach 2:
The cartridge design nests multiple functional components within a compact structure. The sonication feature is integrated into the cartridge body, magnetic beads are contained within the purification chamber, and the entire assembly fits within a single disposable cartridge that can be loaded into standard diagnostic equipment, effectively nesting complexity within a user-friendly interface.
4Productivity
If integrated cartridge system is used, then productivity is improved, but device complexity increases
Solution Approach 1:
The integrated cartridge enables continuous processing through sequential chambers. Sample fluid flows continuously from the homogenization chamber through the fragmentation chamber to the purification chamber without interruption, eliminating the need to transfer samples between separate devices and maintaining continuous productive action throughout the preparation process.
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
Enables rapid, automated, and reliable nucleic acid detection at the point of care, facilitating use by medical staff of all experience levels and providing consistent results in various medical and remote settings.
Implementation Method 1
transmitting ultrasonic energy into the sample fluid to homogenize the sample and fragment the nucleic acid
Implementation Method 2
regulating a temperature of the sample fluid within the sonication feature
Data Source
AI summary
Integrated cartridges for sample homogenization, nucleic acid fragmentation, and nucleic acid detection are disclosed herein. The integrated cartridges include a main housing having a sample well and a detection chamber and a sonication feature coupled to and extending outwardly from the main housing. The sonication feature includes a sonication chamber for receiving a sample fluid. A fluidic path directs the sample fluid from the sample well, to the sonication chamber, and to the detection chamber. Systems for use with the integrated cartridges can include sonotrodes with openings for positioning the sonication feature and/or temperature sensors for monitoring the temperature of the sonication feature. Methods include moving the sample fluid from the sample well to the sonication feature, transmitting ultrasonic energy into the sample fluid, moving the sample fluid from the sonication feature to the detection chamber, and performing a nucleic acid detection assay within the detection chamber.