This image shows how the expander gets enlarged to stretch your skin for a new implant.
Expanders are filled weekly, bi-weekly or monthly depending on what your surgeon feels is best for your recovery and reconstruction. A small IV needled is inserted into the port of your expander and the surgeon slowly injects saline in to the expander. As time passes with each "fill", you can decide the size that best fits your body structure!
Your expanders will be filled with sterile saline (salt water) from an IV bag.