# K191029: Affinity NTTM Oxygenator (Model 511), Affinity® NT Hollow Fiber Oxygenator with Plasma Resistant Fiber (PRF) with TrilliumTM Biosurface (Model 511T), Affinity® NT Integrated CVR/Membrane Oxygenator with Plasma Resistant Fiber (Model 541), Affinity® NT Integrated CVR/Membrane Oxygenator with Plasma Resistant Fiber (Model 541-R), Affinity NT® Integrated CVR/Membrane Oxygenator with Trillium® Biosurface (Model 541T), Affinity NT® Integrated CVR/Membrane Oxygenator with Trillium® Biosurfac

- Pathway: 510(k) (Special)
- Applicant: Medtronic, Inc.
- Decided: May 17, 2019 after 29 days
- Product code: DTZ (Oxygenator, Cardiopulmonary Bypass)
- Device class: 2
- Regulation: 21 CFR 870.4350
- 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.
1 of 4 devices in its family (counting itself) has a Class I recall.

## Predicates on the family tree (from the FDA summary)
- None. FDA’s file for it is a 510(k) statement, which names no predicate.

## Most influential descendants
- K200109: OXY-1 System (2020), 2 descendants of its own
- K223161: OXY-1 System (2023), 0 descendants of its own
- K222297: CentriMag Pre-connected Pack (2022), 0 descendants of its own

## Indications for use
The Affinity NT Oxygenator is intended to be used in an extracorporeal perfusion circuit to oxygenate and remove carbon dioxide from the blood and to cool or warm the blood during routine cardiopulmonary bypass (CPB) procedures up to 6 hours in duration. The Affinity® NT Hollow Fiber Oxygenator with Plasma Resistant Fiber (PRF) with Trillium™ Biosurface is intended to be used in an extracorporeal perfusion circuit to oxygenate and remove carbon dioxide from the blood and to cool or warm the blood during routine cardiopulmonary bypass procedures up to 6 hours in duration. The Affinity® NT Integrated CVR/Membrane Oxygenator with Plasma Resistant Fiber is intended to be used in an extracorporeal perfusion circuit to collect venous and cardiotomy suctioned blood, cool or warm the blood and oxygenate and remove carbon dioxide from the blood during routine cardiopulmonary bypass procedures up to 6 hours in duration. The Affinity® NT Integrated CVR/Membrane Oxygenator with Plasma Resistant Fiber is intended to be used in an extracorporeal perfusion circuit to collect venous and cardiotomy suctioned blood, cool or warm the blood and oxygenate and remove carbon dioxide from the blood during routine cardiopulmonary bypass procedures up to 6 hours in duration. The Affinity NT® Integrated CVR/Membrane Oxygenator with Trillium® Biosurface is intended to be used in an extracorporeal perfusion circuit to collect venous and cardiotomy suctioned blood, cool or warm the blood and oxygenate and remove carbon dioxide from the blood during routine cardiopulmonary bypass procedures up to 6 hours in duration. The Affinity NT® Integrated CVR/Membrane Oxygenator with Trillium® Biosurface is intended to be used in an extracorporeal perfusion circuit to collect venous and cardiotomy suctioned blood, cool or warm the blood and oxygenate and remove carbon dioxide from the blood during routine cardiopulmonary bypass procedures up to 6 hours in duration. The Affinity® NT Integrated Trillium™ CVR/Membrane Oxygenator is intended to be used in an extracorporeal perfusion circuit to collect venous and cardiotomy suctioned blood, cool or warm the blood and oxygenate and remove carbon dioxide from the blood during routine cardiopulmonary bypass procedures up to 6 hours in duration. The Affinity® NT Integrated Trillium™ CVR/Membrane Oxygenator is intended to be used in an extracorporeal perfusion circuit to collect venous and cardiotomy suctioned blood, cool or warm the blood and oxygenate and remove carbon dioxide from the blood during routine cardiopulmonary bypass procedures up to 6 hours in duration. The Affinity NT™ Oxygenator with Cortiva™ BioActive Surface is intended to be used in an extracorporeal perfusion circuit to oxygenate and remove carbon dioxide from the blood and to cool or warm the blood during routine cardiopulmonary bypass (CPB) procedures up to 6 hours in duration. The Affinity NT™ Integrated Uncoated CVR/Oxygenator with Cortiva™ BioActive Surface is intended to be used in an extracorporeal perfusion circuit to collect venous and cardiotomy suctioned blood, cool or warm the blood and oxygenate and remove carbon dioxide from the blood during routine cardiopulmonary bypass (CPB) procedures up to 6 hours in duration.

Source page: https://510kreport.com/device/K191029
Methodology: https://510kreport.com/methodology