US 11,883,635 B2
System and method for microdose injection
Alan E. Shluzas, San Carlos, CA (US)
Assigned to Credence MedSystems, Menlo Park, CA (US)
Filed by CREDENCE MEDSYSTEMS, INC., Menlo Park, CA (US)
Filed on Jun. 17, 2021, as Appl. No. 17/351,006.
Claims priority of provisional application 63/040,384, filed on Jun. 17, 2020.
Prior Publication US 2021/0393883 A1, Dec. 23, 2021
Int. Cl. A61M 5/315 (2006.01); A61M 5/31 (2006.01)
CPC A61M 5/31531 (2013.01) [A61M 5/31501 (2013.01); A61M 5/31505 (2013.01); A61M 2005/3139 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A system for injecting, comprising:
a syringe body having proximal and distal ends, a syringe interior, and a syringe flange at the proximal end thereof;
an injectable fluid disposed in the syringe interior;
a stopper member disposed in the syringe interior;
a plunger member coupled to the stopper member;
a finger flange removably coupled to the syringe flange, the finger flange defining a pair of side openings and a pair of bumps adjacent respective side openings; and
a swing spacer rotatably coupled to the finger flange, the swing spacer defining a pair of arms, a pair of pivot pins, two pairs of slots, and a pair of indentations,
wherein the swing spacer is configured to define a distance of movement of the plunger member relative to the syringe body along a longitudinal axis of the syringe body, thereby defining a dose of the injectable fluid.