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MENTOR® Tissue Expanders

Tissue expanders are used in two-stage immediate breast reconstruction surgery to expand the skin and create a shaped pocket for the breast implant to eventually occupy.


The MENTOR® CPXTM4 Expander is designed for reconstruction and is designed to preferentially expand the lower portion of the breast, allowing surgeons to continually add saline solution via an injection dome.†,1-2

The MENTOR® CPXTM4 Breast Tissue Expander also has proprietary features including the BufferZoneTM Self-Sealing Patch that surrounds the injection dome and protects more of the expander’s surface area from accidental needle puncture.*,3

CPX™4 Breast Tissue Expander

† The third-party trademarks used herein are trademarks of their respective owners.

* Data on file at Mentor Worldwide LLC.

1. Source 14 AST-2012-0176 3D Imaging Study

2. Design fact: Fluid travels the path of least resistance. The reinforced anterior and posterior patches drive fluid towards the lower pole of the expander.

3. Source 15: Surface Area Memo