Time-Lapse Imaging for Embryo Selection Kinetics
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Solution Overview
Problem
Current methods for selecting viable embryos in IVF are largely subjective and rely on morphological evaluations, which have limited predictive value, leading to potential unsuccessful treatments and multiple gestation pregnancies due to inadequate identification of embryos with good developmental potential.
Innovation Solution
The use of time-lapse imaging to measure specific cellular parameters such as the duration of first cytokinesis, syngamy, and abnormal cleavage events, allowing for the selection or deselection of embryos based on their likelihood to reach the blastocyst stage, implant, and be euploid, thereby improving the accuracy of embryo selection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If morphological evaluation methods are used for embryo selection, then the process is simple and quick, but the predictive value for implantation success is limited
Solution Approach 1:
The patent performs time-lapse imaging and kinetic parameter measurements during the early culture period (days 1-3) before embryo transfer. By capturing developmental dynamics in advance and analyzing kinetic parameters such as cell division timing and cleavage patterns, the system predicts implantation potential before the embryo is transferred, thereby improving selection accuracy without extending the clinical decision timeline
Solution Approach 2:
The patent replaces subjective morphological assessment with automated time-lapse imaging systems and computerized image analysis algorithms. The system objectively measures kinetic parameters including time to first cleavage, cell division intervals, and developmental rate, substituting human visual evaluation with quantitative digital analysis to eliminate subjectivity and improve prediction reliability
2Measurement precision
If extended culture to blastocyst stage is used, then implantation prediction improves, but culture period is prolonged and embryo integrity may be disrupted
Solution Approach 1:
The patent performs comprehensive time-lapse imaging and kinetic parameter analysis during days 1-3 of culture, capturing critical developmental information early. By analyzing cell division timing, cleavage patterns, and developmental rate during this initial period, the system predicts blastocyst formation potential and implantation likelihood before extended culture is required, enabling earlier clinical decisions
Solution Approach 2:
The system uses non-invasive time-lapse imaging that allows embryos to develop undisturbed in the incubator without repeated manual handling. The automated imaging system captures developmental dynamics continuously while embryos culture themselves under optimal conditions, eliminating the need for frequent laboratory interventions that could compromise embryo integrity
3Reliability
If multiple embryos are transferred to ensure pregnancy, then implantation success rate increases, but the risk of multiple gestations increases
Solution Approach 1:
The patent provides detailed kinetic parameter profiles and implantation potential predictions for each individual embryo, enabling clinicians to make informed decisions about embryo selection and transfer numbers. By feedbacking quantitative developmental data and predicted outcomes, the system allows optimization of transfer strategies to achieve pregnancy with minimal embryo transfer, thereby reducing multiple gestation risks while maintaining success rates
Data Source
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AI summary
Infertility is a common health problem that affects 10-15% of couples of reproductive age. In the United States alone in the year 2006, approximately 140,000 cycles of in vitro fertilization (IVF) were performed. This resulted in the culture of more than a million embryos annually with variable, and often ill-defined, potential for implantation and development to temi. The live birth rate, per cycle, following IVF was just 29%, while on average 30% of live births resulted in multiple gestations. Multiple gestations have well-documented adverse outcomes for both the mother and fetuses, such as miscarriage, preterm birth, and low birth rate.