Patent ID: 8235972
Filing Date: 2012-08-07
Classification: A61M,F04B,Y10S

Abstract:
1. A pump system, comprising: a head adapted for being in fluid communication with a target volume; a waste container defining a collection volume for collection of materials that may be drained from said target volume; and a pump apparatus comprising a powered pump drive and a pump head, in operation said pump apparatus being configured for enabling said pump drive to drive said pump head via a non-mechanical coupling arrangement, the pump head being in fluid communication with said head and with said waste container, wherein said non-mechanical coupling arrangement comprises a pneumatic coupling arrangement, wherein said pump apparatus comprises an actuation chamber that at least during operation of said system, is substantially air-tight and comprises a control volume of air that pneumatically couples the pump drive with the pump head, enabling said pump drive to drive said pump head, wherein said pump head is releasably coupled mechanically to said pump drive, wherein said actuation chamber comprises a first part, comprised in said pump head, and a second part, comprised in said pump drive, wherein said first part and said second part are configured for being reversibly sealably engaged with one another to define said control volume, when said pump head is coupled mechanically to said pump drive, wherein said pump head comprises a pump member in the form of a diaphragm, and said pump drive comprises a reciprocation drive for driving a reciprocating diaphragm member, said diaphragm member being in fluid communication with said actuation chamber only via a first surface thereof during operation of said system, and wherein said pump member and said diaphragm member are in mutually facing relationship in said actuation chamber.