DRUG DELIVERY DEVICE
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Accused Products
Abstract
The invention relates to a drug delivery device, comprising a control unit, a drive unit, a pressurizing medium container arranged to contain a pressurizing liquid, a drug container arranged to contain a drug and a discharge nozzle, wherein the drive unit when controlled and energized by the control unit is arranged to generate a pressure gradient in the pressurizing liquid thereby propagating the pressure to the drug container and at least partially displacing the drug from the drug container through the discharge nozzle, wherein the drive unit is arranged as an electro-osmotic actor.
13 Citations
30 Claims
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1-15. -15. (canceled)
- 16. Drug delivery device, comprising a control unit, a drive unit, a pressurizing medium container arranged to contain a pressurizing liquid, a drug container arranged to contain a drug and a discharge nozzle, wherein the drive unit when controlled and energized by the control unit is arranged to generate a pressure gradient in the pressurizing liquid thereby propagating the pressure to the drug container and at least partially displacing the drug from the drug container through the discharge nozzle, wherein the drive unit is arranged as an electro-osmotic actor.
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30. Disposable unit for a drug delivery device, comprising a drug container, a pressurizing medium container and an electro-osmotic actor, wherein the drug container is configured to be attached to a discharge nozzle, and wherein the electro osmotic actor is configured to displace a pressurizing liquid from the pressurizing medium container so as to expel a drug from the drug container through the discharge nozzle.
Specification