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Poxymem™ Polypropylene Capillary

Cobetter Poxymem PPB-380/280 and PPB-300/200 are porous hydrophobic capillary membranes manufactured by thermally induced phase separation method. The excellent balance of porosity and pore size brings good mechanical strength, large gas transfer and sufficient anti-plasma leakage breaking through ability. It is suitable for applications to substitute lungs in less than 6 hours such as cardiopulmonary bypass surgery and organ perfusion.
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Description

Features

  • Good Mechanical Strength
  • Good Chemical Compatibility
  • Good Biological Compatibility
  • Good Gas Transfer Ability

Applications

  • Extracorporeal Circulation-Cardiopulmonary Bypass
  • Organ Perfusion

Specifications

Poxymem PPB Capillary Specifications

Model Wall Thickness
[μm]
Outer Diameter
[μm]
Inner Diameter
[μm]
IPA Bubble Point
[bar]
Tensile Strength
[cN]
Elongatoin at Break
[%]
Nitrogen Flux
[mL/(cm²·min·bar)]
PPB-380/280 50±10
380±20
280±20
≥3.1 ≥150 ≥400 75±30
PPB-300/200 50±10
300±20
200±20
≥3.1 ≥150 ≥400 75±30


Cobetter Poxymem capillary can be delivered in form of mat including single layered mat and double layered cross wounded mat. The mat product is knitted by balanced yarn wrapping force and the capillaries are fixed in certain shapes with little damage to capillaries. This geometry allows great freedom for the following oxygenator device design and massively increases manufacturing efficiency. The cross arrangement of capillaries in double layered cross wounded mat is sufficient to break blood flow boundary layers at capillary surface and thus helps to promote oxygenation performance remarkably.


Poxymem PPS Mat Specifications

Model Layer Edge Condition Capillary Count
[caps./cm]
Width Tolerance
[mm]
Distorting Angle
[°]
Shifting of Mat
[mm]
Single Layer Mat 1 Sealed 16.7±1 380 OD
16.7±1 380 OD
17.0±1 380 OD
20.5±1 300 OD
±3 0 <2
Double Layer Cross Wounded Mat 2 ≥12


Ordering Information

Model PPB-380/280 PPB-300/200
Capillary 12 km/reel 12 km/reel
Single Layer Mat* 23.38 km/roll at maximum, varies with width 28.70 km/roll at maximum, varies with width
Double Layer Cross Wounded Mat* 97.49 km/roll at maximum, varies with width 126.33 km/roll at maximum, varies with width

*Feasible width according to order

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