# K890783: Grieshaber Viscoelastic Injection System

- Pathway: 510(k) (Traditional)
- Applicant: Grieshaber & Co.
- Decided: May 16, 1989 after 90 days
- Product code: FRN (Pump, Infusion)
- Device class: 2
- Regulation: 21 CFR 880.5725
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
No predicates in its family tree.
12 later devices descend from it; 1 cites it directly.
0 of 13 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- None. FDA has not posted a summary or statement for it, so its predicates are not known.

## Most influential descendants
- K050716: Iscience Surgical Viscoinjector (2005), 11 descendants of its own
- K132494: Viscoelastic Injector (2013), 10 descendants of its own
- K143205: Viscoelastic Injector (2014), 9 descendants of its own
- K171905: VISCO 360 Viscosurgical System (2017), 8 descendants of its own
- K173332: OMNI Surgical System (2017), 6 descendants of its own

Source page: https://510kreport.com/device/K890783
Methodology: https://510kreport.com/methodology