# K230736: MagnetOs Putty

- Pathway: 510(k) (Traditional)
- Applicant: Kuros Biosciences B.V
- Decided: Dec 20, 2023 after 278 days
- Product code: MQV (Filler, Bone Void, Calcium Compound)
- Device class: 2
- Regulation: 21 CFR 888.3045
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
Longest line of descent: 9 generations back to K960978 (1996). 21 ancestors in all.
4 later devices descend from it; 1 cites it directly.
0 of 26 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K213111: MagnetOs granules, Kuros Biosciences B.V (2022) Summary page 5.
- K181958: MagnetOs Putty, Kuros Biosciences B.V (2018) Summary page 5.
- K191974: NuVasive AttraX Putty, Nu Vasive, Incorporated (2019) Summary page 5.

## Most influential descendants
- K240442: MagnetOs Putty (2024), 3 descendants of its own
- K241212: MagnetOs Easypack Putty (2024), 1 descendant of its own
- K262230: Mg OSTEOREVIVE™;Mg OSTEOCRETE™ (2026), 0 descendants of its own
- K243474: MagnetOs MIS (2025), 0 descendants of its own

## Indications for use
MagnetOs Putty is an implant intended to fill bony voids or gaps of the skeletal system i.e., the extremities, pelvis and posterolateral spine. MagnetOs Putty may be used standalone or mixed with autograft. These osseous defects may be surgically created or the result of traumatic injury to the bone and are not intrinsic to the stability of the bony structure. MagnetOs Putty resorbs and is replaced with bone during the healing process.

Source page: https://510kreport.com/device/K230736
Methodology: https://510kreport.com/methodology