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Ventilatory Modes

Ventilatory Modes

Mechanical ventilators are life-saving devices that support or replace spontaneous breathing. They deliver breaths to patients through varying methods known as ventilator modes. Understanding these modes is critical for healthcare providers managing patients with respiratory failure.
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Full Support Modes
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Continuous Telemetric In Utero Tracheal Pressure Measurements in Fetal Lambs

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A Volume-Adjustable Artificial Womb for Extremely Preterm Infants.

Jan Heyer¹, Franziska Schubert¹, Alexander L Seitz¹

¹Department of Cardiovascular Engineering, Institute of Applied Medical Engineering, Helmholtz Institute, RWTH Aachen University and University Hospital, Aachen, Germany.

Transplant International : Official Journal of the European Society for Organ Transplantation

|August 9, 2024

Summary

This summary is machine-generated.

Developing an artificial womb, this bridge-to-life technology supports extremely preterm infants by providing a physiological liquid environment for organ maturation. The system demonstrates adaptability to fetal growth and maintains stable conditions for up to 7 days.

Keywords:

adjustable silicone sac artificial amniotic sac artificial womb extremely preterm infant perinatal life support

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Area of Science:

Neonatal medicine
Biomedical engineering
Developmental biology

Background:

Over 13 million children are born preterm annually, with prematurity causing 0.9 million global deaths.
Extremely preterm infants (gestational age < 28 weeks) face organ failure and specific morbidities due to immaturity.
Existing treatments for extreme prematurity have limited success in preventing mortality and long-term complications.

Purpose of the Study:

To develop and evaluate an artificial womb and placenta technology as a bridge-to-life solution for extremely preterm neonates.
To create a system that supports physiological organ maturation in a liquid environment, mimicking in utero conditions.
To design an adaptable artificial womb capable of accommodating fetal growth over a defined period.

Main Methods:

An artificial womb system was designed with adjustable inner sac volume (3.6–7.0 L) using fluid removal between chambers.
A filtration and disinfection system was developed to manage metabolic waste and prevent phospholipid washout.
In vitro testing was conducted over 7 days to assess temperature stability (36.8°C ± 0.3°C) and pressure integrity.

Main Results:

The artificial womb maintained a stable temperature of 36.8°C ± 0.3°C without pressure loss for 7 days.
The system demonstrated effective filtration, disinfection, and prevention of phospholipid washout.
The volume variability of the artificial womb was sufficient to support physiological growth for 4 weeks.

Conclusions:

The artificial womb technology shows promise as a bridge-to-life solution for extremely preterm infants.
The system's ability to adapt to fetal growth and maintain physiological conditions is a significant advancement.
Further development of this technology could reduce prematurity-related mortality and morbidity.