Shunts

There are 3 shunts in the boston circuit:

1. Filter purge line to the reservoir. 2. Oxygenated blood from oxygenator going through a manifold to the reservoir 3. Recirc line.

During bypass, all the perfusionists except 2, like to keep all the shunts closed! Even the filter purge line which is a safety feature.

No bubble detectors are used in Boston.