# K922741: Lorenz 1.0 MM System

- Pathway: 510(k) (Traditional)
- Applicant: Walter Lorenz Surgical, Inc.
- Decided: Dec 23, 1992 after 198 days
- Product code: JEY (Plate, Bone)
- Device class: 2
- Regulation: 21 CFR 872.4760
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
No predicates in its family tree.
12 later devices descend from it; 2 cite it directly.
0 of 13 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- None. FDA lists a 510(k) statement for it but has not posted the file, so its predicates are not known.

## Most influential descendants
- K121624: Biomet Microfixation Neuro Plating System (2012), 5 descendants of its own
- K121589: Biomet Microfixation Facial Plating System (2012), 5 descendants of its own
- K141911: Optimus Neuro System (2015), 4 descendants of its own
- K183352: Optimus Neuro System (2019), 2 descendants of its own
- K140037: Optimus CMF System (2015), 2 descendants of its own

Source page: https://510kreport.com/device/K922741
Methodology: https://510kreport.com/methodology