# K990423: Philips Nicol Collimator Family

- Pathway: 510(k) (Traditional)
- Applicant: Philips Medical Systems, Inc.
- Decided: Mar 15, 1999 after 32 days
- Product code: IZW (Collimator, Automatic, Radiographic)
- Device class: 2
- Regulation: 21 CFR 892.1610
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
No predicates in its family tree.
6 later devices descend from it; 1 cites 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)
- None. The FDA summary names its predicate without a number.
- (no number) Philips Galileo Automatic Collimator: named in the summary without a submission number

## Most influential descendants
- K031597: Dunlee Format Collimator Family (2003), 5 descendants of its own
- K050092: R605 Facs Collimeter (2005), 4 descendants of its own
- K072780: Model R302DACS/a Automatic X-Ray Collimator (2007), 2 descendants of its own
- K093572: R650 Qdasm Collimator (2010), 0 descendants of its own
- K091517: Ralco, Model R225 Acs (2009), 0 descendants of its own

## Indications for use
The Philips NICOL Collimator is intended for use in diagnostic x-ray systems during radiographic and fluoroscopic examinations. The collimator restricts the dimensions of the diagnostic x-ray field by limiting the size of the primary x-ray beam.

Source page: https://510kreport.com/device/K990423
Methodology: https://510kreport.com/methodology