# K820459: Viragard/Virashield

- Pathway: 510(k) (Traditional)
- Applicant: Tri-Med, Inc.
- Decided: Jun 16, 1982 after 117 days
- Product code: DRS (Transducer, Blood-Pressure, Extravascular)
- Device class: 2
- Regulation: 21 CFR 870.2850
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
No predicates in its family tree.
3 later devices descend 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)
- None. FDA has not posted a summary or statement for it, so its predicates are not known.

## Most influential descendants
- K983076: Medisystems Transducer Protector (1998), 2 descendants of its own
- K072988: Nipro Transducer Protector TP-Sure, Model Tpsure+1 (2008), 1 descendant of its own
- K240164: NovaLine SP-C35 Transducer Protector (956007) (2024), 0 descendants of its own

Source page: https://510kreport.com/device/K820459
Methodology: https://510kreport.com/methodology