# K170071: SGS ECCOVISIONTM Pharyngometer, SGS ECCOVISIONTM Rhinometer, SGS ECCOVISIONTM Rhino/Pharyngometer

- Pathway: 510(k) (Traditional)
- Applicant: Sleep Group Solutions
- Decided: Nov 9, 2017 after 304 days
- Product code: BXQ (Rhinoanemometer (Measurement Of Nasal Decongestion))
- Device class: 2
- Regulation: 21 CFR 868.1800
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
Longest line of descent: 1 generation back to K921452 (1993). 2 ancestors in all.
1 later device descends from it; 1 cites it directly.
0 of 4 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K011329: Eccovision Acoustic Diagnostic Imaging Acoustic Pharyngometer, E. Benson Hood Lab, Inc. (2002) Summary page 4.
- K921452: Acoustic Rhinometer, Hood Laboratories (1993) Summary page 4.

## Most influential descendants
- K221892: Visionair (2022), 0 descendants of its own

## Indications for use
To measure the upper respiratory airway by means of acoustic reflection

Source page: https://510kreport.com/device/K170071
Methodology: https://510kreport.com/methodology