公开(公告)号：US20190314573A1

公开(公告)日：2019-10-17

申请号：US16341205

申请日：2017-10-16

Applicant: BAYER HEALTHCARE LLC

Inventor： KEVIN COWAN ,  MICHAEL SPOHN ,  BARRY TUCKER ,  JAMES DEDIG ,  GREGORY JOHNSTON ,  MICHAEL MCDERMOTT ,  DAVID BERRY ,  ADAM STEEGE ,  JESSIE DELGADO ,  COREY SAVANNAH ,  KEITH LIPFORD ,  CHET LARROW ,  MARIANO MUMPOWER ,  DANICA GORDON

IPC: A61M5/145 ,  A61M5/00 ,  A61M5/24 ,  A61M5/315 ,  A61M5/14

Abstract: An engagement mechanism associated with a reciprocally movable piston of a fluid injector is configured for releasably engaging an engagement portion at a proximal end of a rolling diaphragm syringe having a flexible sidewall configured for rolling upon itself when acted upon by the piston. The engagement mechanism has a plurality of engagement elements reversibly and radially movable relative to the engagement portion of the syringe between a first position, where the plurality of engagement elements are disengaged from the engagement portion of the syringe, and a second position, where the plurality of engagement elements are engaged with the engagement portion of the syringe. The engagement mechanism further has a drive mechanism for moving the plurality of engagement elements between the first position and the second position.