Syringe with Suction-Based Automatic Disabling
AssigneeBecton, Dickinson and Company
InventorPraveen Nalawade
Life of this patent
Estimating the term…
Abstract
Provided herein is a syringe including a syringe barrel having a barrel proximal end and a barrel distal end and defining a chamber configured for containing a fluid therein. The syringe also includes a plunger axially movable within the chamber of the syringe barrel, the plunger having a plunger proximal end and a plunger distal end. The syringe further includes a stopper secured to the plunger distal end, the stopper axially movable with the plunger within the chamber, with the stopper having an attachment member configured to couple to the plunger distal end and a cup member extending out distally from the attachment member, the cup member having a concave shape.
Claims20
A syringe comprising:
- a syringe barrel having a barrel proximal end and a barrel distal end and defining a chamber configured for containing a fluid therein;
- a plunger axially movable within the chamber of the syringe barrel, the plunger having a plunger proximal end and a plunger distal end;
- and
- a stopper secured to the plunger distal end, the stopper axially movable with the plunger within the chamber, wherein the stopper includes:
- an attachment member configured to couple to the plunger distal end;
- and
- a cup member extending out distally from the attachment member, the cup member having a concave shape.
A syringe comprising:
- a syringe barrel having a barrel proximal end and a barrel distal end and defining a chamber configured for containing a fluid therein;
- and
- a plunger assembly axially movable within the chamber of the syringe barrel between a retracted position and an advanced position, the plunger assembly including:
- a plunger having a plunger proximal end and a plunger distal end;
- and
- a stopper secured to the plunger distal end, the stopper configured to suction to the barrel distal end upon the plunger assembly being moved to the advanced position;
- wherein the stopper is further configured to separate from the plunger and remain suctioned to the barrel distal end upon the plunger being moved axially from the advanced position back toward the retracted position.
Dependencies are inferred from the claim text.