Rapid Sperm Fertility Test Strip Using Protamine Ratio
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Solution Overview
Problem
Current methods for determining sperm fertility are complex, require specialized equipment and personnel, and are not suitable for routine use due to their cost, time-consuming nature, and lack of standardization, making them unsuitable for widespread application in assessing fertility for artificial insemination procedures.
Innovation Solution
An immunological method using a rapid test strip to determine the protamine-protein ratio of protamine-1 to protamine-2 in sperm samples, allowing for quick, standardizable, and cost-effective assessment of sperm fertility without the need for specialized knowledge or equipment, using ELISA techniques to quantify protamine-1 and protamine-2 concentrations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional methods for determining sperm fertility are used, then measurement precision is improved, but device complexity and ease of operation deteriorate
Solution Approach 1:
The patent employs disposable test strips containing pre-coated antibodies for protamine detection, eliminating the need for expensive, reusable laboratory equipment. Each test strip is a single-use device that integrates all necessary reagents and detection elements, making the system simple, disposable, and suitable for routine use without specialized facilities.
Solution Approach 2:
The test strip serves multiple functions: it detects protamine presence, quantifies protamine concentration, determines fertility status, and provides standardized results all in one device. This multi-functional design replaces complex laboratory workflows with a single integrated tool that can be used by non-specialists.
2Measurement precision
If traditional sperm fertility determination methods are used, then measurement precision is improved, but productivity deteriorates
Solution Approach 1:
The test strips are pre-prepared with antibodies and reagents in optimal configurations during manufacturing. This preliminary preparation eliminates time-consuming steps in the actual testing process, such as reagent mixing, calibration, and equipment setup, allowing rapid testing to be performed directly by adding the sample.
Solution Approach 2:
The patent employs a streamlined testing procedure that skips intermediate laboratory steps. The test strip directly processes the sperm sample through antibody binding and signal generation in a single continuous operation, reducing the total testing time from hours to minutes while maintaining measurement precision.
3Measurement precision
If traditional sperm fertility determination methods are used, then measurement precision is improved, but ease of operation deteriorates
Solution Approach 1:
The test strip is designed to be self-explanatory with built-in controls and clear result indicators. The device performs quality control checks automatically and provides unambiguous fertility status readings, allowing users without specialized training to operate the test independently and interpret results correctly.
Solution Approach 2:
The test strip uses colorimetric changes to indicate protamine concentration and fertility status. Different colors or color intensities directly correspond to different fertility outcomes, providing an intuitive visual readout that requires no specialized knowledge to interpret, while maintaining quantitative precision through standardized color comparisons.
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 method provides a reliable, rapid, and standardized means to assess sperm fertility, enabling the determination of normal or reduced fertility based on the protamine-protein ratio, thereby predicting the success of in vitro fertilization or intracytoplasmic sperm injection.
Implementation Method 1
The fertility of sperm is determined by detecting the proteins protamine-1 and protamine-2 and showing the ratio between protamine-1 and protamine-2 (protamine-protein ratio)
Data Source
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AI summary
The present invention relates to a method and a device for determining the concentration of protamine-1 and protamine-2 and the ratio between protamine-1 and protamine-2 (the protamine-protein ratio) in a sample from an individual under investigation in vitro for determining sperm fertility. This is very important for predicting the success of in vitro fertilization of an egg. The test strip includes a sperm pre-test for determining sperm concentration and a rapid protamine test for determining the concentration of protamine-1 and protamine-2 and the ratio between protamine-1 and protamine-2 (the protamine-protein ratio).