Syringe with biasing member
AssigneeCareFusion 303, Inc.
InventorsJanice R. PAK, Edmond Yu, Hojae Choi, Lun Zhang, Vincent F. Wang, Wesley Underwood
Life of this patent
Estimating the term…
Abstract
Syringes are described herein. In certain embodiments, a syringe includes a syringe body, a movable plunger, and a biasing member. The syringe body defines a cavity and a port in fluid communication with the cavity. The movable plunger is disposed within the cavity. The plunger and cavity define a volume. The port is in fluid communication with the volume. The biasing member is coupled to the plunger. The biasing member is configured to urge the plunger toward the port to dispense a fluid stored within the volume at a desired rate.
Claims20
A syringe, comprising:
- a syringe body defining a cavity and a port in fluid communication with the cavity;
- a movable plunger disposed within the cavity, wherein the plunger and cavity define a volume and the port is in fluid communication with the volume;
- and
- a biasing member coupled to the plunger, wherein the biasing member is configured to urge the plunger toward the port to dispense a fluid stored within the volume at a desired rate.
A method comprising:
- releasing an energized biasing member coupled to a plunger;
- advancing the plunger within a syringe cavity;
- and
- dispensing fluid from the syringe cavity at a desired rate for a desired period of time in response to releasing the energized biasing member.
A syringe, comprising:
- a syringe body defining a cavity and a port in fluid communication with the cavity;
- a movable plunger disposed within the cavity, wherein the plunger and cavity define a volume and the port is in fluid communication with the volume;
- and
- a biasing member coupled to the plunger, wherein the biasing member is configured to advance the plunger toward the port.
Dependencies are inferred from the claim text.