The oxygenator (a Sorin Inspire 8F) was setup as per our normal and pressure tested for 10 minutes prior to priming. All routine pressure / occlusion checks were performed and passed. The pump was left to recirculate during mammary harvest at 140mmHg. Upon return, we noticed several micro bubbles in the oxygenator near the white recirculation port but no visible leak which was de-aired with flow and pressure being applied. A very small leak was noted at this point but the location of the leak was difficult to visualize. Therefore, all luer lock connectors for the sampling manifold and both red and white recirculation ports were tightened, at which point the leak seemed to stop.



We continued with an arterial R.A.P which was uneventful. The venous tubing was then R.A.P.ed and it was this at this point where a fast and almost continuous blood leak was noted out the bottom of the oxygenator seemingly originating from inside or around the temperature port.