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Family of Hollow Fiber Oxygenators

A 32 µm screen filter surrounds the fiber layer of the oxygenator. Particulate micro-emboli that may be present in the blood are trapped in the filter mesh while gaseous emboli remain inside the oxygenator and in contact with the hollow fibers. Driven by the pressure difference, gaseous emboli enter the inner lumen of the microporous hollow fiber and are eliminated via the gas outlet.


  • Integrated arterial filter with self-venting technology
  • Lower priming volume, high gas exchange and low pressure drop are optimally balanced for superb performance
  • Hollow fibers manufactured exclusively by Terumo using a patented technology means total quality management from raw materials to finished product 
  • Superior O2 transfer performance

Clinical evidence

See all clinical evidence

General specifications


Oxygenator FX05FX15FX25
Housing materialPolycarbonate    
Fiber materialMicroporous polypropylene    
Heat exchanger materialStainless steel    
Fiber bundle surface areaApprox. 0.5 m²Approx. 1.5 m²Approx. 2.5 m²
Heat exchanger surface areaApprox. 0.035 m²Approx. 0.14 m²Approx. 0.2 m²
Blood flow range

Min. 0.1 L/min

Max. 1.5 L/min

 Min. 0.5 - 5.0 L/min

0.5 - 4.0 L/min*

Min. 0.5 L/min

Max. 7.0 L/min

Reference blood flow (AAMI std.)2.5 L/min7 L/minN/A
Prime volume (static)43 mL144 mL260 mL
Blood inlet port (from pump)1/4" (6.4 mm)3/8" (9.5 mm)3/8" (9.5 mm)
Blood outlet port1/4" (6.4 mm)3/8" (9.5 mm)3/8" (9.5 mm)
Cardioplegia PortN/A1/4" (6.4 mm)1/4" (6.4 mm)
Luer port (for recirc. or blood cardioplegia)One luer lock on blood outlet portN/A  
Gas inlet port1/4" (6.4 mm)    
Gas outlet port5/16" (7.9 mm)1/4" (6.4 mm)1/4" (6.4 mm)
Water ports (Hansen quick-connect fittings)1/2" (12.7 mm)    
Maximum pressure: Blood Inlet133 kPa (1.000 mmHg)    
Maximum pressure: Water Inlet196 kPa (2 kgf/cm²)    

 * When using R30 hardshell reservoir

Arterial filter

Aterial filterFX05FX15FX25
Filter materialPolyester screen type    
Pore size32 µm    
Surface area130 cm²360 cm²600 cm²

Hardshell reservoir

Hardshell reservoirFX05R40 (for FX15)R30 (for FX15)FX25
Housing materialPolycarbonate      
Venous filter materialPolyester screen type, Pore size 47 µm       
Venous pore size Pore size 47 µm       
Cardiotomy filter materialPolyester depth type       
Defoamer materialPolyurethane foam      
Blood flow range: Venous flow

Min. 0.1 L/min

Max. 1.5 L/min

Min. 0.5 L/min

Max. 5.0 L/min

Min. 0.5 L/min

Max. 4.0 L/min

Min. 0.5 L/min

Max. 7.0 L/min

Blood flow range: Cardiotomy inletN/AMax. 5.0 L/minMax. 4.0 L/minMax. 5.0 L/min
Blood flow range: Combined flow N/AMax. 4.0 L/minMax. 5.0 L/minMax. 7.0 L/min
Blood storage capacity1.000 mL4.000 mL3.000 mL4.000 mL
Minimum operating volume15 mL200 mL70 mL200 mL
Venous blood inlet port1/4" (6.4 mm) rotatable1/2" (12.7 mm) rotatable3/8" (9.5 mm) rotatable1/2" (12.7 mm) rotatable
Blood outlet port (to pump)1/4" (6.4 mm)3/8" (9.5 mm)    
Suction portsFive 3/16" - 1/4" (4.8 mm - 6.4 mm) rotatableSix 1/4" (6,4 mm)    
Vertical port (to CR filter)N/A3/8" (9.5 mm)    
Quick prime port1/4" (6.4 mm)      
Vent port1/4" (6.4 mm)      
Auxiliary port1/4" - 3/8" (6.4 mm - 9.5 mm)      
Luer portsThree filtered luer locks to cardiotomy filter, one non-filtered luer lock, two luer locks on venous inlet 
Maximum sustainable negative pressure in reservoir-20.0 kPa (-150 mmHg)      

 Xcoating-Logo-TM_CMYK.pngXcoating™ Surface Coating, Terumo Corporation's biocompatible amphiphilic polymer surface coating, is a standard feature on the CAPIOX® FX Oxygenators.

Item specifications

Choose the blood outlet port configuration that best suits your circuit.

West outlet port
Oxy inlet on right when outlet is
facing away from user

​East outlet port
Oxy inlet on left when outlet is
facing away from user


Capiox® FX05 Oxygenator

​Catalog #Units/Case
CapioxFX05 Oxygenator.jpg​ ​
Oxygenator with integrated arterial filter1 and hardshell reservoir
​​Oxygenator with integrated arterial filter1 and hardshell reservoir
​Oxygenator with integrated arterial filter2

​Oxygenator with integrated arterial filter2


Capiox®FX15 Oxygenator

​Catalog #
​ ​CapioxFX15 Oxygenator.jpg ​ ​ ​ ​
Oxygenator with integrated arterial filter3
Oxygenator with integrated arterial filter3
Oxygenator with integrated arterial filterand hardshell reservoir
Oxygenator with integrated arterial filter4 and hardshell reservoir
Oxygenator with integrated arterial filter and hardshell reservoir
Oxygenator with integrated arterial filter and hardshell reservoir

1 Contains 2 adapters 1/4" - 3/8"

2 Contains 4 adapters 3/16" - 1/4", 1 adapter 1/4" - 3/8" and a recirculation line

3 Contains 2 adapters 1/4" - 3/8"

4 Contains 4 adapters 1/4" - 3/8"

Capiox® FX25 Oxygenator

DescriptionCatalog #
​ ​ ​ ​CapioxFX25 Oxygenator.jpg
​Oxygenator with integrated arterial filterCX*FX25W​​4
Oxygenator with integrated arterial filterCX*FX25E​4​
Oxygenator with integrated arterial filter and hardshell reservoirCX*FX25RW​2​
Oxygenator with integrated arterial filter and hardshell reservoirCX*FX25RE

Holders for CAPIOX® FX Oxygenators

DescriptionCatalog #Units/Case
Holder for Capiox® FX05 oxygenator without hardshell reservoir
Holder for Capiox® FX05 oxygenator with hardshell reservoir
Holder for Capiox® FX15 and FX25 oxygenator without hardshell reservoir
XX*CXH15 1
Holder for Capiox® FX15 and FX25 oxygenator when separated from reservoir
Holder for Capiox® FX15 and FX25 oxygenator with hardshell reservoir (long angled arm)
Holder for Capiox® FX15 and FX25 oxygenator with hardshell reservoir (short non-angled arm)

Accessories for CAPIOX® FX Oxygenators

​Description​Catalog #
​Blue thermistor wireCX*BP021​10​
Red thermistor wire​CX*BP022​10​

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