公开(公告)号：JPS62218675A

公开(公告)日：1987-09-26

申请号：JP3358787

申请日：1987-02-18

Applicant: BAXTER TRAVENOL LAB

Inventor： AREGUSANDAA ESU BORUSANII

IPC: F04B43/12 ,  A61M1/10 ,  F04B43/08

Abstract: The pump platen assembly takes the form of a support frame which is fixed in relation to the pump axis when the pump is in operation. A rigid platen plate has an elongated channel or trough that supports the straight section of resilient tubing to be compressed by the bearing assemblies. A compression part is interposed between the frame and the floating rigid plate for holding the tubing section in position for sequential compression by the bearing assemblies. The compression part may take the form of an elastomeric foam pad or a series of compression springs disposed between the frame and floating plate. The compression part is only slightly or partially compressed during a normal pump operation but is more fully compressed to permit substantial displacement of the plate when a predetermined maximum back pressure is exceeded.