This is a new tissue expander by Mentor. This new expander is designed to control pocket formation during the first stage of breast reconstruction when the expander is placed. This new expander has internal structural elements that provide more precise expansion.
This expander will supposedly allow more controlled expansion to create a more natural look. This new expander will limit expansion laterally AND superiorly. The expander has 2 projections available. So who knows this may be a step forward in creating a more natural look with breast reconstruction.