# K230331: Protrieve Sheath

- Pathway: 510(k) (Special)
- Applicant: Inari Medical, Inc.
- Decided: Mar 7, 2023 after 28 days
- Product code: QEW (Peripheral Mechanical Thrombectomy With Aspiration)
- Device class: 2
- Regulation: 21 CFR 870.5150
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
Longest line of descent: 5 generations back to K032073 (2003). 6 ancestors in all.
2 later devices descend from it; 2 cite it directly.
0 of 9 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K212392: Intri24 Sheath, Inari Medical, Inc. (2022) Summary page 4.

## Most influential descendants
- K253323: Protrieve Sheath (2025), 0 descendants of its own
- K233815: ClotTriever Sheath (2023), 0 descendants of its own

## Indications for use
The ClotTriever Thrombectomy System is indicated for: • The non-surgical removal of thrombi and emboli from blood vessels. • Injection, infusion, and/or aspiration of contrast media and other fluids into or from a blood vessel. The ClotTriever Thrombectomy System is intended for use in the peripheral vasculature including deep vein thrombosis (DVT). The Protrieve Sheath is indicated for use as a conduit for the insertion of endovascular devices into the vasculature while minimizing blood loss associated with such insertions.

Source page: https://510kreport.com/device/K230331
Methodology: https://510kreport.com/methodology