# Precision Instruments, Inc.

- Location (FDA's records): Grand Blanc, MI
- FDA decisions: 4 (1980–1987): 4 510(k) clearances
- Product codes: HRH (3), EMF (1)
- Predicates its devices cite: 0 (0 its own); citations of its devices by later devices: 3 (0 its own)
- Recalls linked to its devices: 0 (0 Class I)
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Firms that cite its devices most
- Eyefix, Inc.: 1 (https://510kreport.com/company/eyefix)
- Lensx Lasers, Inc.: 1 (https://510kreport.com/company/lensx-lasers)
- Laser Center Dev. Corp.: 1 (https://510kreport.com/company/laser-center-dev)

## Its most-cited devices
- K864520: Barron Rotary Blade Trephine Using Hessburg-Barron (1987), cited by 3

## Recent decisions
- K864520: Barron Rotary Blade Trephine Using Hessburg-Barron (Jan 20, 1987)
- K860648: Barron Twin Blade Trephine for Eppikaratophakia (Mar 25, 1986)
- K843048: Ring Supported Trephine for Cornea Trans (Oct 5, 1984)
- K801585: Hessburg-Bfrron Trephine (Oct 3, 1980)

Source page: https://510kreport.com/company/precision-instruments