A Dynamic Compliance Cervix Phantom Robot for Latent Labor Simulation

Area of Science:

• Biomedical Engineering
• Robotics
• Medical Simulation

Background:

• Current physical simulation systems for midwifery and obstetrics training lack dynamic cervix ripening simulation.
• Realistic simulation of cervical changes is crucial for effective birth training.

Purpose of the Study:

• To introduce a unique soft robot phantom capable of simulating cervix softening during the latent labor phase.
• To evaluate the phantom's ability to mimic cervical dilation and effacement.
• To assess the effectiveness of the phantom in tactile discrimination training for birth simulators.

Main Methods:

• Development of a novel soft robotic phantom designed to simulate cervical changes.
• Implementation of a Foley catheter-like loading mechanism for dilation and effacement.
• Conducting psychophysics trials with untrained subjects to evaluate tactile perception of phantom states.

Main Results:

• The robotic phantom achieved 1 cm dilation and 35% effacement.
• Psychophysics trials showed high specificity in identifying hard (91%) and soft (87%) phantom states.
• Results indicate successful simulation of key cervical changes relevant to labor.

Conclusions:

• The developed soft robot phantom effectively simulates cervix softening and mechanical properties during labor.
• This technology is appropriate for enhancing the realism of birth training simulators.
• The phantom offers a valuable tool for improving midwifery and obstetrics education.