[The technical safety of tissue expander domes]

Area of Science:

• Biomaterials Science
• Medical Device Engineering
• Plastic and Reconstructive Surgery

Background:

• Tissue expander dome leakage is a significant complication in tissue expansion procedures.
• This complication can lead to the interruption of reconstructive surgeries.
• Understanding device integrity is crucial for successful outcomes.

Purpose of the Study:

• To evaluate the pressure stability of different tissue expander domes and medication ports.
• To assess the impact of various needles and puncture techniques on device integrity.
• To identify reliable expander dome and port combinations for clinical use.

Main Methods:

• Tested five expansion domes and one medication port against three needle types (two diameters).
• Measured puncture forces, force-distance curves, and leakage pressures after single and repeated punctures.
• Conducted over 2000 experiments to ensure robust data collection.

Main Results:

• Only one specific expander dome and medication port combination demonstrated adequate pressure stability.
• Needle type and puncture technique had minimal impact on the overall pressure stability of the tested domes.
• Detailed technical characteristics of the stable device are presented.

Conclusions:

• The choice of expander dome and medication port is critical for preventing leakage.
• A single combination exhibited superior pressure stability, suggesting its suitability for clinical applications.
• Further research may focus on optimizing device design to enhance resistance to puncture-related complications.