# K061893: Integra Radionics Xknife RT 4

- Pathway: 510(k) (Special)
- Applicant: Integra Radionics, Inc.
- Decided: Jul 25, 2006 after 22 days
- Product code: MUJ (System, Planning, Radiation Therapy Treatment)
- Device class: 2
- Regulation: 21 CFR 892.5050
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
Longest line of descent: 6 generations back to K914698 (1992). 19 ancestors in all.
No later device cites it as a predicate yet.
0 of 20 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K041997: Radionics Xknife RT 3 with Non Stereotactic Module, Radionics, A Division of Tyco Healthcare Group LP (2004) Summary page 1.

## Indications for use
XKnife RT 4 is a radiosurgery and radiotherapy treatment planning system intended for use in stereotactic and non-stereotactic (frameless), collimated beam, computer planned, LINAC based treatment

Source page: https://510kreport.com/device/K061893
Methodology: https://510kreport.com/methodology