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US 6,248,095 B1Granted
Low-cost medication delivery pen
AssigneeBecton, Dickinson and Company
InventorsLucio Giambattista, Carlos Guillermo, John Burbank
Life of this patent
Estimating the term…
Abstract
A medication delivery pen having very few parts allowing it to be manufactured at a very low-cost. The medication delivery pen also includes an automatic release mechanism to allow the user to easily reset the dose on the medication delivery pen and a mechanism for allowing the lead screw to easily retract back into the body of the medication delivery pen when the vial retainer has been removed to receive a new vial.
Claims7
A medication delivery pen comprising:
- a body having a distal end and a proximal end and including:
- a dose control mechanism for setting a desired dose to be delivered and initiating a reset condition;
- a drive mechanism for dispensing the desired dose, said drive mechanism including a leadscrew having a set of threads and a driver having a set of threads that engage with the set of threads on said leadscrew to drive said leadscrew in a distal direction during dispensing;
- and
- a reset mechanism that is selectively activated by said dose control mechanism for disengaging said drive mechanism from said dose control mechanism when said dose control mechanism initiates the reset condition to permit a new desired dose to be set by said dose control mechanism without having to use said drive mechanism to dispense the previously set desired dose, said reset mechanism including an alert mechanism that alerts a user that the reset condition has been initiated,
- wherein said dose control mechanism includes a dose set knob rotatably mounted within said body and attached to said drive mechanism by said reset mechanism during a dose setting condition, and
- wherein said reset mechanism disengages said dose set knob from said driver when said dose set knob initiates the reset condition.
4 more elements
Dependencies are inferred from the claim text.