# Protocol Systems, Inc.

- Location (FDA's records): Beaverton, OR
- FDA decisions: 15 (1988–2000): 15 510(k) clearances
- Product codes: DRT (4), DXN (1), MLD (1), DSF (1), MHX (1), FLS (1), DQK (1), DSK (1), CCK (1), DRG (1), DQA (1), DSI (1)
- Predicates its devices cite: 1 (0 its own); citations of its devices by later devices: 23 (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 whose devices it cites most
- Accucore, Inc.: 1 (https://510kreport.com/company/accucore)

## Firms that cite its devices most
- Welch Allyn Protocol, Inc.: 10 (https://510kreport.com/company/welch-allyn-protocol)
- Remote Diagnostic Technologies, Ltd.: 4 (https://510kreport.com/company/remote-diagnostic-technologies)
- Cas Medical Systems, Inc.: 2 (https://510kreport.com/company/cas-medical-systems)
- Welch Allyn, Inc.: 2 (https://510kreport.com/company/welch-allyn)
- Sabratek Corp.: 1 (https://510kreport.com/company/sabratek)
- Physio-Control Corp.: 1 (https://510kreport.com/company/physio-control)
- Nellcor Puritan Bennett, Inc.: 1 (https://510kreport.com/company/nellcor-puritan-bennett)
- Nexan Telemed, Ltd.: 1 (https://510kreport.com/company/nexan-telemed)

## Its most-cited devices
- K951246: Propaq Encore 200 Series Monitor with Neonatal Mode and Impedance Pneumography Options (1996), cited by 5
- K002725: Micropaq, Models 402 and 404 (2000), cited by 4
- K914838: Propaq 102,104,106,102EL,104EL,&106EL (1992), cited by 3
- K910772: Propaq 102, 104 and 106 (1991), cited by 2
- K972121: Acuity Central Station (1997), cited by 2
- K935846: Model Acuity Central Station (1994), cited by 2

## Recent decisions
- K002725: Micropaq, Models 402 and 404 (Nov 21, 2000)
- K972121: Acuity Central Station (Nov 7, 1997)
- K951246: Propaq Encore 200 Series Monitor with Neonatal Mode and Impedance Pneumography Options (Feb 2, 1996)
- K945071: Propaq 200 Monitor (May 10, 1995)
- K935846: Model Acuity Central Station (Dec 5, 1994)
- K934711: Propaq Ecg Telemetry Option (Sep 1, 1994)
- K921497: Propaq Monitors, Modification (Mar 23, 1993)
- K914838: Propaq 102,104,106,102EL,104EL,&106EL (Jan 10, 1992)

Source page: https://510kreport.com/company/protocol-systems