Injection device with injection completion indicator
AssigneesPulse Needlefree Systems, Inc., Otsuka Pharmaceutical Co., Ltd.
InventorMIKHAIL ZOLOTUKHIN
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Abstract
In an aspect, the present invention is directed to an injection device. The injection device includes a pneumatic piston chamber and a pneumatic piston slidably positioned within the pneumatic piston chamber; a dose chamber and an injectate piston slidably positioned within the dose chamber; and an injection completion indicator comprising a window into the piston chamber or dose chamber, wherein the injection completion indicator is aligned with a portion of the pneumatic piston chamber or the dose chamber. In another aspect, the present invention is directed to a method of administering an injection to a subject using the injection device of the invention.
Claims5
An injection device, comprising:
- a pneumatic piston chamber and a pneumatic piston slidably positioned within the pneumatic piston chamber;
- a dose chamber and an injectate piston slidably positioned within the dose chamber;
- and
- an injection completion indicator comprising a window into the piston chamber or dose chamber, wherein the injection completion indicator is aligned with a portion of the pneumatic piston chamber or the dose chamber.
Dependencies are inferred from the claim text.