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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 Specifications Ordering Information

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	40-60	350-410	260-300	≥3.1	≥150	≥400	20-80
PPB-300/200	40-60	280-320	180-220	≥3.1	≥100	≥400	20-80

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	±3	0	<2
Double Layer Cross Wounded Mat	2	Sealed	20.5±1 300 OD	±3	≥12	<2

Ordering Information

Capillary	12 km/reel
Single Layer Mat*	40 m/roll
Double Layer Cross Wounded Mat*	40 m/roll

*Feasible width according to order