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US 11,890,457 B2Granted
Aspiration and injection device
AssigneeAllergan, Inc.
InventorsBastien Mandaroux, Shushuo Wu, Lance Hussey
Life of this patent
Estimating the term…
Abstract
An aspiration and injection device is provided that can allow for ergonomic, safe, and precise aspiration of a target site and ejection of a medicament to the target site. The device can include a syringe barrel, a flange extender couplable to the barrel, and plunger that can be engaged by a hand and/or one or more finger of a user to perform aspiration and injection at a target site.
Claims10
A syringe plunger assembly, the assembly comprising:
- a plunger head comprising a distal-facing surface and a plurality of engagement structures extending distally from the distal-facing surface to facilitate gripping with a user's thumb during operation of the syringe;
- and
- a plunger rod having (i) a proximal end portion coupled to the distal-facing surface of the plunger head and (ii) a distal end portion configured to be at least partially disposed within a barrel of the syringe,
- wherein the plurality of engagement structures circumscribes the plunger rod.
1 more element
Dependencies are inferred from the claim text.