Methods and apparatus for organ support

摘要

An organ support apparatus includes: (a) a fluid circuit defining upstream and downstream legs adapted to be connected to an organ to be supported; (b) a circulation pump connected to the fluid circuit for circulating a process fluid through the fluid circuit and the organ; and (c) a first waveform generator connected to the fluid circuit for impressing a preselected pressure waveform on the process fluid.

主权项

1. An organ support apparatus, comprising:
an enclosure adapted to enclose an organ to be supported and including inlet and outlet connections configured to be coupled to the organ; a fluid circuit defining upstream and downstream legs connected to the inlet and outlet connections respectively; a circulation pump connected to the fluid circuit for circulating a process fluid through the fluid circuit and the organ; a first waveform generator disposed in the upstream leg for impressing a preselected first pressure waveform on the process fluid before it is delivered to the organ, wherein the first waveform generator comprises:
a first diaphragm-type pressure regulator; anda first reference pressure source connected to the pressure regulator; and a second waveform generator connected in the downstream leg of the fluid circuit for impressing a preselected second pressure waveform on the downstream pressure applied to the organ, wherein the second waveform generator comprises:
a second diaphragm-type pressure regulator; anda second reference pressure source connected to the second pressure regulator.