US 12,403,263 B2
Syringe control structure and manufacture method
Alexander Merson, Brooklyn, NY (US); and Gennady I Kleyman, Brooklyn, NY (US)
Assigned to Algen & Klemer, LLC, New York, NY (US)
Filed by Alexander Merson, Brooklyn, NY (US); and Gennady I Kleyman, Brooklyn, NY (US)
Filed on Jul. 27, 2022, as Appl. No. 17/874,629.
Application 17/874,629 is a division of application No. 16/999,788, filed on Aug. 21, 2020, granted, now 11,464,910.
Prior Publication US 2022/0355039 A1, Nov. 10, 2022
Int. Cl. A61M 5/31 (2006.01); A61M 5/315 (2006.01)
CPC A61M 5/3137 (2013.01) [A61M 5/3148 (2013.01); A61M 5/31511 (2013.01); A61M 5/31576 (2013.01); A61M 2005/3139 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A syringe having improved control members, the syringe comprising:
a barrel having a region therein to retain material, and a first opening at one end through which said material is dispensed, and a second opening distal from said first opening;
a plunger including
a plunger rod disposed to enter said barrel through said second opening and extending into said barrel, and having a first end within said barrel and a second end external to said barrel, and having an axis of motion within said barrel; and
a finger receiver connected to said second end, and comprising an annular member having a wall defining an adjustable opening having an opening length extending in a dimension substantially perpendicular to said axis of motion, wherein said annular member wall comprises a lower portion, and an upper portion detached from said lower portion and having a first end and a second end, said upper portion and said lower portion movable together to provide said adjustable opening in a direction of said axis of motion while maintaining a substantially uniform dimension across said adjustable opening and perpendicular to said axis of motion,
wherein said first end and said second end of said upper portion each comprises a corresponding first member, and said lower portion comprises a second member adapted to be adjustably received by said first members of said first end and said second end of said upper portion to form said adjustable opening having a wall length adjustable at two locations therealong.