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Balanced Performance

  • Low 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 with total quality management from raw materials to finished product.
  • Woven fiber bundle ensures consistent and high-performance gas exchange.
  • Choice of blood outlet port configurations for easy access and increased circuit flexibility.
  • Top-to-bottom blood flow path and air purge line provide excellent air removal capability.
  • No DEHP used in PVC tubing.


Hardshell Reservoir

Full Featured

  • Elongated shape provides a stable blood flow path and enhanced visibility at all levels from all angles.
  • Rotating venous inlet improves set-up flexibility.
  • No DEHP used in PVC tubing.
  • Connecting mount increases flexibility in circuit set-up and oxygenator rotation.
  • Funnel-shaped cardiotomy filter improves breakthrough and residual volumes.
  • Positive pressure relief value for additional safety.


  • Terumo’s exclusive hollow fiber
  • High flow with very low priming volume
  • Superior O2 transfer performance
  • Outstandingly low pressure drop

General specifications


OxygenatorRX15 R30 reservoirRX15 R40 reservoirRX25
 Housing materialPolycarbonate ​ ​
 Fiber materialMicroporous polypropylene ​ ​
Heat exchanger materialStainless steel ​ ​
Fibers: Approx. surface area1.5 m²
1.5 m²
2.5 m²
Heat exchanger: Approx. surface area0.14 m²0.14 m²0.2 m²
Blood flow range0.5 - 4.0 L/min0.5 - 5.0 L/min0.5 - 7.0 L/min
Priming Volume (static)135 mL
135 mL250 mL
Blood inlet port (from pump)3/8" (9.5 mm) ​ ​
Blood outlet port3/8" (9.5 mm) ​ ​
Cardioplegia port1/4" (6.4 mm) ​ ​
Gas inlet port1/4" (6.4 mm) ​ ​
Gas outlet port1/4" (6.4 mm) ​ ​
Water ports1/2" (12.7 mm) Hansen quick connect fittings ​ ​
Maximum pressure Blood inlet133 kPa (1.000 mmHg) ​ ​
Maximum pressure Water inlet196 kPa (2 kgf/cm²)(28.5 psi) ​ ​


Hardshell reservoir

Hardshell ReservoirRX15 R30 reservoirRX15 R40 reservoirRX25
Housing material Polycarbonate ​ ​
Venous filter materials Polyester screen type ​ ​
Cardiotomy filter materialPolyester depth type ​ ​
Defoamer materialPolyurethane foam ​ ​
Blood flow range: Venous 0.5 – 4.0 L/min
0.5 - 5.0 L/min
0.5 - 7.0 L/min
Blood flow range: Cardiotomy inlet4.0 L/min5.0 L/min5.0 L/min
Blood flow range: Combined flow4.0 L/min5.0 L/min
7.0 L/min
Blood storage capacity3.000 mL4.000 mL4.000 mL
Minimum operating volume70 mL200 mL200 mL
Venous blood inlet port (rotatable)
 > when 1/4" adaptor is attached
3/8" (9.5 mm);
1/4" (6.4 mm)
1/2" (12.7 mm) ​
Blood outlet port (to pump)
 > when 1/4" adaptor is attached
3/8" (9.5 mm);
1/4" (6.4 mm)
3/8" (9.5 mm) ​
Suction ports (rotatable)Six: 1/4" (6.4 mm) ​ ​
Vertical port (to CR filter)3/8" (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® RX 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® RX15 Oxygenator

Description​Catalog #Units/Case
CapioxRX15 Oxygenator.jpg​ ​ ​ ​ ​ ​Hollow fiber oxygenator1
​Hollow fiber oxygenator1
Hollow fiber oxygenator with hardshell reservoir​​2
Hollow fiber oxygenator with hardshell reservoir​2
Hollow fiber oxygenator with hardshell reservoir​
​Hollow fiber oxygenator with hardshell reservoir​

1 Contains two adapters 1/4" - 3/8"

2 Contains four adapters 1/4" - 3/8"

CAPIOX® RX25 Oxygenator

Description​Catalog #​Units/Case
​ ​ ​ ​CapioxRX25 Oxygenator.jpg​Hollow fiber oxygenator
​Hollow fiber oxygenator​
Hollow fiber oxygenator with hardshell reservoir​
Hollow fiber oxygenator with hardshell reservoir​


​Holders for CAPIOX® RX Oxygenators

​Description​Catalog #​Units/Case
​Holder for Capiox® RX15 and RX25 oxygenator when separated from reservoir
Holder for Capiox® RX15 and RX25 oxygenator without hardshell reservoir
XX_CXH18R.jpgHolder for Capiox® RX15 and RX25 oxygenator with hardshell reservoir​ (long angled arm)
XX_XH032.jpgHolder for Capiox® RX15 and RX25 oxygenator with hardshell reservoir (short non-angeled arm)

 Accessories for CAPIOX® RX Oxygenators

​Catalog #
​Blue thermistor wire
​Red thermistor wire

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