DAVID BERRY,BARRY L. TUCKER,EDWARD J. RHINEHART,GERALD CALLAN,ARTHUR E. UBER, III,KEVIN P. COWAN,RAYMOND C. HOFFMAN,BENJAMIN T. KRUPP,MARTIN J. GIBLER,MICHAEL A. SPOHN
申请号：
US16812912
公开号：
US20200222634A1
申请日:
2020.03.09
申请国别(地区):
US
年份:
2020
代理人:
摘要：
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.
