Priming volume; prewash requirements; transmembrane pressures; position in CPB circuit

 

Terumo SE15NL

Prefilled

Yes

Prefilled with reverse osmosis water - makes debubbling & priming easier & as the pores are already saturated, see immediate maximum efficiency

Water Removal at 200 mmHg

3720 ml/hr

Design

Hollow fibres

200 m diam fibre

235 cm long

9700 fibres number

Cuprammonium rayon

Priming volume [excluding circuit]

90 ml

Ultra filtration rate (ml/mmHg/hr)

19

Creatinine clearance (ml/min)

200

Cut off molecular weight

± 60,000 (95%)

Max TMP

500 mmHg

 

 

1.                   Important to adequately flush with NS to remove vasodilatory substances

a)                   1- 2 litres

 

2.                   Techniques

a)                   Passive arterial flow +/- suction on ultrafiltrate

i)                    Difficult to control

b)                  Use of a pump

i)                    Easier to control ultrafiltration rates