Self-injection device
First Claim
Patent Images
1. A drug delivery device, comprising:
- a body having a reservoir disposed therein for containing a medicament;
an injection needle for penetrating a patient'"'"'s skin, the needle being in fluid communication with the reservoir;
a pressurization unit and a plunger movable within the body under a force of the pressurization unit for contacting the reservoir; and
an end-of-dose indicator visible outside the device for indicating that delivery of the medicament is substantially complete, the end-of-dose indicator comprising a post rotatably disposed within the body and having a helical face; and
wherein the helical face of the post bears against an edge of the plunger such that motion of the plunger rotates the post from an initial position to a second position, indicating that delivery of the medicament is substantially complete.
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Abstract
A device for delivering a medicament into a patient'"'"'s body by injection into or through the patient'"'"'s skin includes a body having a reservoir disposed therein for containing the medicament, an injection needle for penetrating the skin of the patient, the needle having a lumen and communicating with the reservoir, and a pressurizing system for pressurizing the reservoir. The device also includes indicator means visible outside the device for indicating that delivery of the medicament is substantially complete.
148 Citations
9 Claims
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1. A drug delivery device, comprising:
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a body having a reservoir disposed therein for containing a medicament; an injection needle for penetrating a patient'"'"'s skin, the needle being in fluid communication with the reservoir; a pressurization unit and a plunger movable within the body under a force of the pressurization unit for contacting the reservoir; and an end-of-dose indicator visible outside the device for indicating that delivery of the medicament is substantially complete, the end-of-dose indicator comprising a post rotatably disposed within the body and having a helical face; and wherein the helical face of the post bears against an edge of the plunger such that motion of the plunger rotates the post from an initial position to a second position, indicating that delivery of the medicament is substantially complete. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification