PERFUSION APPARATUS WITH REDUCED PRESSURE FLUCTUATIONS, AND BUBBLE TRAP

摘要

An organ perfusion apparatus comprises a pulsatile pump and a bubble trap. The bubble trap includes a chamber having at least one liquid inlet opening, at least one gas outlet opening and at least one liquid outlet opening. The bubble trap is configured to reduce or eliminate pulsatility of the liquid flow and pressure. A minimum volume of gas is maintained in the chamber, which is sufficient to dampen flow rate and pressure fluctuations of the liquid. In particular, the volume of the chamber above the gas outlet opening is at least 0.4 liter or at least 75% of a total volume of the chamber. The bubble trap may further include a liquid level sensor, and a sampling port in a wall of the chamber.