公开(公告)号：US10583256B2

公开(公告)日：2020-03-10

申请号：US15305285

申请日：2015-04-24

Applicant: BAYER HEALTHCARE LLC

Inventor： Dave Berry ,  Barry L. Tucker ,  Edward J. Rhinehart ,  Gerald W. Callan ,  Arthur E. Uber, III ,  Kevin P. Cowan ,  Raymond C. Hoffman ,  Benjamin T. Krupp ,  Martin J. Gibler ,  Michael A. Spohn

IPC: A61M5/315 ,  A61M5/24

Abstract: A syringe for a fluid delivery system includes a pressure jacket having a distal end, a proximal end, and a throughbore therebetween. The syringe further includes a rolling diaphragm having a proximal end with an end wall for engaging a plunger, a distal end received within the throughbore of the pressure jacket. A sidewall extends between the proximal end and the distal end of the rolling diaphragm along a longitudinal axis. At least a portion of one of the sidewall and the end wall has non-uniform thickness. At least a portion of the sidewall is flexible and rolls upon itself when acted upon by the plunger such that an outer surface of the sidewall at a folding region is folded in a radially inward direction as the plunger is advanced from the proximal end to the distal end of the rolling diaphragm.

公开(公告)号：US11717614B2

公开(公告)日：2023-08-08

申请号：US16812912

申请日：2020-03-09

Applicant: BAYER HEALTHCARE LLC

Inventor： Dave Berry ,  Kevin P. Cowan ,  Martin J. Gibler ,  Michael A. Spohn

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

CPC classification number: A61M5/31513 ,  A61M5/145 ,  A61M5/14586 ,  A61M5/2425 ,  A61M5/14546 ,  A61M5/14566 ,  A61M5/14593 ,  A61M5/31515 ,  A61M2005/14513 ,  A61M2005/14553 ,  A61M2205/36

Abstract: A syringe for a fluid delivery system includes a pressure jacket having a distal end, a proximal end, and a throughbore therebetween. The syringe further includes a rolling diaphragm having a proximal end with an end wall for engaging a plunger, a distal end received within the throughbore of the pressure jacket. The distal end of the rolling diaphragm has a nozzle and a sidewall extending between the proximal end and the distal end of the rolling diaphragm along a longitudinal axis. At least a portion of one of the sidewall and the end wall has non-uniform thickness. At least a portion of the sidewall is flexible and rolls upon itself when acted upon by the plunger such that an outer surface of the sidewall at a folding region is folded in a radially inward direction as the plunger is advanced from the proximal end to the distal end of the rolling diaphragm.