# K982009: One Week Backstop Dental Anti-Retraction Check Valve

- Pathway: 510(k) (Traditional)
- Applicant: Scitech Solutions, Inc.
- Decided: Jun 25, 1998 after 84 days
- Product code: EIA (Unit, Operative Dental)
- Device class: 1
- Regulation: 21 CFR 872.6640
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
Longest line of descent: 3 generations back to K930144 (1994). 4 ancestors in all.
No later device cites it as a predicate yet.
0 of 5 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K973996: Clearline Plus, Dental Waterline Filter, Scitech Solutions, Inc. (1998) Summary page 1.
- K960556: Bacstop Dental Anti-Retraction Check Valve, Scitech Solutions, Inc. (1996) Summary page 1.

## Indications for use
The BACSTOP™ dental waterline Anti-retraction valve is normally closed disposable valve, which is replaced every week, or 5 working days. It is intended to be used in-line on dental unit water lines as a means of preventing the retraction of orally contaminated fluids into the coolant and irrigant water hoses. It is to be used for all patients. BACSTOP™ is to be installed within the last several inches of tubing, before the dental handpiece, air/water syringe or ultra sonic scaler. It opens only under sufficient pressure (equivalent to 1.5 psi) and snaps closed and seals against backflow when the pressure drops below this point. The device is inserted by connection to luer mounts placed permanently in-line.

Source page: https://510kreport.com/device/K982009
Methodology: https://510kreport.com/methodology