Donor Identity Verification for Human Milk Banking
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Solution Overview
Problem
The challenge is to verify the identity and provenance of human breast milk donations, which are often collected unsupervised and may be contaminated, requiring a method to confirm that the milk comes from a specific donor.
Innovation Solution
The method involves obtaining a reference sample from a potential donor, analyzing it for identity markers, and comparing these markers with samples of donated breast milk to ensure a match, using techniques such as DNA typing, HLA analysis, or self-antigen profiling, which can be stored for future reference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If DNA typing and identity marker analysis are implemented to verify donor identity, then the reliability and safety of donated breast milk is improved, but the device complexity and testing cost increase
Solution Approach 1:
The patent applies preliminary action by collecting and storing reference biological samples (DNA, HLA typing, self-antigen profiles) from donors before the actual milk donation. These reference samples are processed and stored in advance, creating a database of identity markers that can be quickly compared against future donations. This preliminary preparation simplifies the actual verification process at the time of donation, as only comparison testing is needed rather than full analysis from scratch.
Solution Approach 2:
The patent uses identity markers (DNA profiles, HLA typing results, self-antigen profiles) as intermediaries to verify donor identity. Rather than directly comparing entire biological samples, the system extracts and compares specific genetic and immunological markers that serve as unique identifiers. These marker profiles act as mediators that enable reliable donor verification through simplified comparative analysis.
2Measurement precision
If multiple identity markers are analyzed to confirm milk provenance, then the measurement precision of donor identification is improved, but the loss of time for sample processing increases
Solution Approach 1:
The system performs comprehensive identity marker analysis (DNA typing, HLA analysis, self-antigen profiling) in advance during the reference sample collection phase. Multiple identity markers are processed and stored before actual donation occurs, so that during milk donation only rapid comparison testing is required. This preliminary comprehensive analysis achieves high measurement precision without time loss during the critical donation window.
Solution Approach 2:
The patent creates copies of identity information by generating and storing reference profiles (DNA profiles, HLA typing results, self-antigen profiles) from donors. These reference copies are then used for rapid comparison against donated milk samples. Instead of repeatedly performing full analysis on each donation, the system compares against pre-existing reference copies, dramatically reducing processing time while maintaining identification accuracy.
3Adaptability or versatility
If reference samples are stored for future comparison, then the adaptability of the testing system is improved, but the loss of substance and storage requirements increase
Solution Approach 1:
The patent extracts and stores only the essential identity information from complete biological samples. Instead of storing entire blood or tissue samples, the system extracts specific identity markers (DNA profiles, HLA typing results, self-antigen profiles) and stores only these extracted data elements. This extraction approach enables adaptability for multiple donation verifications while minimizing substance storage requirements, as only informational data rather than physical biological material needs to be retained.
Data Source
AI summary
The disclosure is related generally to methods for testing mammary fluid (including milk) to establish or confirm the identity of the donor of the mammary fluid. Such methods are useful in the milk-bank business to improve safety.