Patent ID: 9498570
Filing Date: 2016-11-22
CPC Classification: A61M,B29C,B29K,B29L

Claim Text:
1. A bladder syringe for a fluid delivery system, the bladder syringe comprising: a cylindrical body having a sidewall extending between a distal end and a proximal end and defining a throughbore; a cap-bladder assembly adapted for connection to the distal end of the cylindrical body, the cap-bladder assembly comprising: a plunger element disposed in the throughbore of the cylindrical body; wherein a distal portion of the plunger element and the bladder interact to restrict movement of the bladder outward toward the sidewall to conserve a bladder material thickness in a center of the membrane portion as the plunger element is retracted in the cylindrical body creating vacuum pressure between the plunger element and the bladder.