Healthcare Professionals
Affinity NT <br>Oxygenation system
With Balance™ Biosurface
Overview
The Affinity NT™ oxygenation system set the standard for the industry as the first to feature a radial blood flow design and graduated fiber winding.
Consistent performance
Reliable results
The Affinity NT oxygenator continues the Affinity tradition of high performance and convenience.
- Proprietary graduated fiber bundle density technology and radial flow design for enhanced gas transfer and low pressure drop
- Excellent air handling capabilities with separate venous and cardiotomy inlets, a final screen intended to remove air and other potential emboli, and a design that prevents blood contact with defoamer (unless foam is present)
- Clear design for unobstructed visibility pre- and post-membrane for ease in priming
Balance biosurface*
A balanced approach to preserving platelet function.
Balance’s heparin-free, hydrophilic polymer surface reduces platelet adhesion and activation.1 Platelet activation has been shown to play a role in systemic inflammatory response.2-5
% functional platelets over time†
Oxygenator performance data
Manuals and technical guides
Find the Affinity NT™ oxygenation system technical manual in the product labeling supplied with each device.
Model specifications
Affinity NT Oxygenator
Membrane type: Microporous polypropylene hollow fibers
Membrane surface area: 2.5m2
Static priming volume: 280 ml
Recommended blood flow rate: 1-7 L/min
Maximum water side pressure: 30 psi
Arterial outlet port: 3/8”
Venous inlet port: 3/8”
Arterial sample port: Female luer port
Access port: Female luer port
Recirculation port: 1/4"
Gas outlet port: 3/8” nonbarbed
Water ports: 1/2” quick disconnects
Affinity NT CVR Specifications
Reservoir volume capacity: 4,000 ml
Recommended blood flow rate: 1-7 L/min
Maximum cardiotomy blood flow rate: 6 L/min
Minimum operating level: 200ml
Cardiotomy filtration: 30 μm
Venous inlet screen: 200 μm
Final reservoir screen: 150 μm
Positive pressure relief valve crack: < 5 mm Hg
Vacuum pressure relief valve crack: > 150 mm Hg
Ordering information
Oxygenators
| 541B | Affinity NT integrated uncoated CVR/oxygenator with Balance Biosurface | 2 |
| 511B | Affinity NT oxygenator with Balance Biosurface | Available in custom tubing packs |
| PRODUCT NUMBER | PRODUCT DESCRIPTION | UNITS/CASE |
|---|
Accessories and Holders
| MODEL NUMBER | PRODUCT DESCRIPTION | UNITS/CASE |
|---|---|---|
| 61399401093 | Affinity oxygenator with integrated CVR holder | 1 |
| 61399401072 | Affinity oxygenator holder | 1 |
| TP | Temperature probe | 1 |
*
Cortiva™ BioActive Surface, formerly marketed under the Carmeda® brand name. Carmeda is a registered trademark of Carmeda AB (Sweden).
Technology licensed under agreement from BioInteractions, Limited, United Kingdom
†
Representative of the Affinity NT with Balance Biosurface. Bench data on file. Not necessarily predictive of clinical performance results..
References
1
Medtronic data on file.
2
Morrell CN, Aggrey AA, Chapman LM, Modjeski KL. Emerging roles for platelets as immune and inflammatory cells. Blood. May 1, 2014;123(18):2759-2767.
3
Sonmez O, Sonmez M. Role of platelets in immune system and inflammation. Porto Biomedical Journal. November-December 2017;2(6):311-314.
4
Mirza I, Kottke-Marchant K. In: Kottke- Marchant K, ed. An Algorithmic Approach to Hemostasis Testing. 2nd ed. College of American Pathologists; 2016:30-31.
5
Thomas MR, Storey RF. The role of platelets in inflammation. Thromb Haemost. August 31, 2015;114(3):449-458.