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Are artificial wombs the future?
- A European team led by Professor Frans van de Vosse at Eindhoven University of Technology is developing the world's first clinically approved artificial womb to reduce mortality among prematurely born infants.
- The initiative aims to address the fact that nearly one million babies die annually from prematurity, with approximately 50% of infants born at 24 weeks failing to survive in standard incubators.
- The project is driven by the medical necessity of providing an oxygenated, liquid-filled environment to support babies whose lungs are not yet sufficiently formed to breathe air.
- The 29-member interdisciplinary team combines expertise in physics, computational modeling, industrial design, and obstetrics to simulate the maternal cardiovascular system.
- Unlike existing animal trials using lamb pregnancies, this EU-funded project utilizes silicone rubber mannequins to mimic fetal movement and simulate system dynamics, potentially delaying the need for further animal experimentation.
- The proposed procedure involves a liquid tunnel to transfer the infant from the mother into the artificial womb, a transition designed to keep the fetus submerged in fluid throughout the process.
- Following the transfer, the umbilical cord must be disconnected from the mother and reattached to an artificial placenta within a few minutes to prevent hypoxic brain damage.
- Infants would spend approximately four weeks in the artificial environment, receiving nutrients and oxygen via the artificial placenta, until reaching a developmental stage equivalent to 28 weeks of gestation.
- Once the fetus develops sufficient lung capacity at 28 weeks, it would be moved to a standard incubator and eventually released to parental care.
- Significant technical hurdles remain, particularly the risk of blood coagulation when fetal blood contacts non-biological materials within the artificial circuit.
- Experts project a timeline of at least a decade before the technology becomes clinically available, noting that initial deployment will likely be cost-prohibitive.
- The team explicitly states the technology is not suitable for growing a baby entirely outside the human body, as the system is designed strictly to bridge the gap for extremely premature infants.
- The project is currently positioned as a life-saving intervention for infants born around 24 weeks, where current survival rates in incubators remain critically low.