# K171563: MagnetOs Putty

- Pathway: 510(k) (Traditional)
- Applicant: Kuros Biosciences B.V
- Decided: Aug 24, 2017 after 86 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: 7 generations back to K960978 (1996). 26 ancestors in all.
4 later devices descend from it; 1 cites it directly.
0 of 31 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K161859: MagnetOs, Xpand Biotechnology BV (2017) Summary page 5.
- K151584: AttraX Putty, Progentix Orthobiology BV (2015) Summary page 5.
- K132071: Bioactive Bone Graft Putty, Biostructures, LLC (2014) Summary page 5.
- K071046: Synthes Chronos Composite, Synthes (Usa) (2007) Summary page 5.

## Most influential descendants
- K211201: MagnetOs Easypack Putty (2021), 3 descendants of its own
- K233607: MagnetOs Easypack Putty (2023), 2 descendants of its own
- K241212: MagnetOs Easypack Putty (2024), 1 descendant 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., posterolateral spine. MagnetOs Putty must be used with autograft as a bone graft extender in the posterolateral spine. 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/K171563
Methodology: https://510kreport.com/methodology