Embodiments of the present invention relate generally to certain types of reciprocating positive-displacement pumps (which may be referred to hereinafter as “pods,” “pump pods,” or “pod pumps”) used to pump fluids, such as a biological fluid (e.g., blood or peritoneal fluid), a therapeutic...http://www.google.es/patents/US20080175719?utm_source=gb-gplus-sharePatente US20080175719 - Fluid pumping systems, devices and methods
