Medical fluid therapy machine including pneumatic pump box and accumulator for it

Abstract

A medical fluid delivery machine comprising: a medical fluid pump comprising a pneumatic pump chamber and a first pneumatic medical fluid valve chamber and a second pneumatic medical valve chamber respectively located upstream and downstream of the pneumatic pump chamber a fluid valve chamber; a compressor for generating positive pressure air; and storing positive pressure air for delivery to the pneumatic pump chamber, the first pneumatic medical fluid valve chamber, or the second pneumatic medical fluid valve chamber At least one of the accumulators, the accumulator holds an elastic bladder that inflates under positive pressure air from the compressor, thereby creating additional positive pressure, which increases the amount of positive pressure air that the accumulator can provide.

Description

[0001] Cross References to Related Applications [0002] This application calls for U.S. patent application No. .15 / 336, the priority of 266, which is hereby incorporated by reference in its entirety. technical field [0003] The present disclosure generally relates to devices, systems and methods for medical fluid conveyor machines. More specifically, the present disclosure relates to medical fluid delivery machines employing pneumatic pumping, such as kidney failure treatment machines. Background technique [0004] Regarding the kidney failure treatment machine, due to various reasons, a person's kidney system may decline. Renal failure produces a variety of physiological disturbances. No longer able to balance water and minerals or excrete daily metabolic load. Toxic end products of nitrogen metabolism (urea, creatinine, uric acid, etc.) can accumulate in the blood and tissues. [0005] Dialysis has been used to treat kidney failure and reduced kidney function. Dial...

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