Non-clogging dispensing device
AssigneesBaxter International Inc., Baxter Healthcare S.A.
InventorDustin Christopher Cawthon
Life of this patent
Estimating the term…
Abstract
An assembly for mixing and dispensing a multi-component fluid includes a sheath having first and second fluid chambers, a chamber coupler, and a flexible tip. The chamber coupler forms first and second fluid channels. Additionally, the flexible tip forms a mixing chamber with a variable mixing volume and an outlet. The flexible tip is coupled to the chamber coupler near a distal end of the sheath. In the presence of an activation force, the flexible tip is forced out of the sheath and positioned in a dispensing state with a maximum mixing volume. In the absence of the activation force, the flexible tip is housed within the sheath and positioned in a non-dispensing state with a minimum mixing volume such that the outlet is substantially closed.
Claims20
An assembly for mixing and dispensing a multi-component fluid, the assembly comprising:
- a sheath having first and second fluid chambers, a proximal end and a distal end, wherein the sheath includes a restriction member at the distal end and a handgrip at the proximal end;
- a chamber coupler forming a first fluid channel and a second fluid channel;
- and
- a flexible tip forming a mixing chamber with a variable mixing volume and an outlet, the flexible tip coupled to the chamber coupler near the distal end of the sheath, wherein in the presence of an activation force, the flexible tip is forced out of the restriction member of the sheath and positioned in a dispensing state with a maximum mixing volume, and wherein in the absence of the activation force, the restriction member extends over the flexible tip and deforms the flexible tip as the flexible tip is housed within the sheath and positioned in a non-dispensing state with a minimum mixing volume such that the outlet is substantially closed.
A self-cleaning applicator for mixing and dispensing a multi-component fluid, the applicator comprising:
- a first fluid chamber and a second fluid chamber;
- a sheath enclosing the first and second fluid chambers, the sheath having a restriction member at a distal end and a handgrip at a proximal end;
- a chamber coupler forming a first fluid channel and a second fluid channel;
- a flexible tip forming a mixing chamber with a mixing volume and an outlet, the flexible tip coupled to the chamber coupler near the distal end of the sheath;
- a spring positioned between the distal end of the sheath and the chamber coupler;
- and
- a grip connected to a first plunger and a second plunger, wherein
- the first fluid channel extends from the first fluid chamber to the mixing chamber,
- the second fluid channel extends from the second fluid chamber to the mixing chamber, and
- wherein upon applying a force to the grip and an opposing force to the handgrip, the flexible tip is forced out of the restriction member and positioned in a dispensing state thereby increasing the mixing volume and allowing the multi-component fluid to exit the outlet, and wherein removal of the application of the force and opposing force causes the restriction member to extend over the flexible tip and deform the flexible tip such that the mixing volume is reduced and the outlet is substantially closed in a non-dispensing state.
Dependencies are inferred from the claim text.