Time-lapse Microscopy for Embryo Blastocyst Prediction
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Solution Overview
Problem
Current methods for assessing human embryo viability in IVF are limited by their reliance on morphological observations and time-consuming processes, which do not accurately predict blastocyst formation or pregnancy outcomes, and are not species-specific, leading to inefficiencies in identifying suitable embryos for transfer.
Innovation Solution
The development of methods and kits using time-lapse microscopy to measure specific cellular parameters such as cytokinesis duration and intervals between cell divisions, allowing for the prediction of blastocyst formation and embryo ranking, thereby improving the selection of viable embryos for transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If morphological observations are used to assess embryo viability, then the assessment process is simple, but the prediction accuracy of blastocyst formation is low
Solution Approach 1:
The patent transitions from simple morphological parameters to quantitative kinetic parameters including cell division timing, duration, and intervals. These dynamic parameters provide more predictive information about blastocyst formation potential while maintaining measurement simplicity through automated time-lapse imaging systems.
Solution Approach 2:
The patent replaces manual morphological assessment with automated image analysis systems that objectively measure cellular parameters. This substitution eliminates human subjectivity and enables precise quantification of embryo development kinetics, significantly improving prediction accuracy.
2Reliability
If extended culture to blastocyst stage is used to assess embryo quality, then more information about developmental potential is obtained, but the culture period is prolonged and embryo integrity may be disrupted
Solution Approach 1:
The patent performs preliminary assessment of embryo viability by measuring early cell division kinetics parameters. These early measurements allow prediction of blastocyst formation potential before extended culture is required, enabling earlier selection decisions that reduce culture duration and minimize potential disruption to embryo integrity.
Solution Approach 2:
The patent uses the embryo's own natural development process as the assessment tool. By monitoring inherent cellular behaviors such as cytokinesis timing and duration without external intervention, the method obtains reliable predictive information while maintaining embryo integrity and avoiding the need for prolonged culture or invasive procedures.
3Ease of manufacture
If model organism studies are used to understand embryo development, then research funding is more available, but the findings cannot be directly extrapolated to human embryos
Solution Approach 1:
The patent identifies and measures specific cellular parameters in human embryos that can be directly observed and quantified. By focusing on universal biological processes such as cell division kinetics that are conserved across species but measurable in human embryos, the method bridges the gap between model organism research and human applications, making findings directly applicable without requiring species-specific adaptation.
Data Source
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AI summary
Methods, compositions and kits for determining the likelihood of reaching the blastocyst stage for one or more embryos or pluripotent cells are provided. These methods, compositions and kits find use in identifying embryos and oocytes in vitro that are most useful in treating infertility in humans.