Check with surgeon Fr10 or 12--Flo Introducer Cook catheter which comes with a guide wire for an anterior /posterior placenta.
At the completion of the procedure, the surgeon collects amniotic fluid from the recipient twin through the Cook catheter for the purpose of preventing pre-term labour and miscarriage.
He told me there was an instrument used called a Cook catheter
, that no one was familiar with or trained in.
And consultant anaesthetist Deepa Singh decided to use a Cook catheter
to give him the gas, despite no one in the room being trained in its use.