# K131853: Mentor Memoryshape Resterilizable Gel Sizer

- Pathway: 510(k) (Special)
- Applicant: Mentor Worldwide, LLC
- Decided: Jul 17, 2013 after 26 days
- Product code: MRD (Mammary Sizer)
- Device class: U
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
Longest line of descent: 2 generations back to K010709 (2001). 2 ancestors in all.
4 later devices descend from it; 2 cite it directly.
0 of 7 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K062421: Mentor Resterilizable Gel Breast Implant Sizer, Mentor Corporation (2006) Summary page 1.

## Most influential descendants
- K151055: Mentor MemoryShape Resterilizable Gel Breast Implant Sizer STERILE (2015), 3 descendants of its own
- K183163: Intraoperative, Single-Use, Sterile, Silicone Breast Sizer Motiva Implant Matrix (2019), 1 descendant of its own
- K243271: MENTOR™ MemoryShape™ Resterilizable Gel Breast Implant Sizer; MENTOR™ MemoryGel™ Resterilizable Gel Breast Implant Sizer; MENTOR™ MemoryGel™ Enhance Single Use Gel Sizer (2025), 0 descendants of its own
- K200706: Sientra OPUS Silicone Gel Breast Implant Sizer (2020), 0 descendants of its own

## Indications for use
The Mentor Resterilizable MemoryShape m Gel Breast Implant Sizer is indicated for temporary insertion intra-operatively to evaluate the size and shape of the MemoryShape m breast implant to be implanted.

Source page: https://510kreport.com/device/K131853
Methodology: https://510kreport.com/methodology