Injection device having a miniaturized drug delivery portion
AssigneeBecton Dickinson France
InventorChristophe Bureau
Life of this patent
Estimating the term…
Abstract
A self-injection device with a miniaturized drug delivery portion is provided. The device includes a housing (10) having an interior volume and the drug delivery portion (20) has a volume enclosed within the housing. The drug delivery portion includes a reservoir (30) containing a fluid to be delivered to a user and a microneedle (22) in fluid communication with the reservoir and extendable through the housing. The drug delivery portion also includes a drive mechanism for expelling fluid from the reservoir through the microneedle, wherein the volume of the drug delivery portion is less than 40% of the interior volume of the housing. The volume of the drug delivery portion may be less than 30% of the interior volume of the housing.
Claims26
A self-injection device with a miniaturized drug delivery component, the device comprising a housing having an interior volume consisting of a functional portion and a non-functional portion, the functional portion comprising:
- a substrate having a depression or cavity extending inwardly from a surface thereof, the depression or cavity defining a reservoir containing a single dose of a fluid to be delivered to a user;
- a microneedle mounted to the substrate in fluid communication with the reservoir and extendable through the housing;
- and
- a drive mechanism in communication with the substrate for expelling the fluid from the reservoir through the microneedle,
- wherein a volume of the functional portion is less than 40% of the interior volume of the housing.
A self-injection device with miniaturized drug delivery components, the device comprising:
- a housing having an interior volume, the interior volume consisting of a functional portion and a non-functional portion,
- the functional portion comprising:
- a substrate having a depression or cavity extending inwardly from a surface thereof, the depression or cavity defining a reservoir containing a single dose of a fluid to be delivered to a user;
- a microneedle mounted to the substrate in fluid communication with the reservoir and extendable through the housing;
- and
- a drive mechanism in communication with the substrate for expelling the fluid from the reservoir through the microneedle,
- wherein an R value for the self-injection device defined by the equation
- R
- =
- L
-
-
- 3
- Functional_portion
- L
-
-
- 3
- housing
- is less than 50%, and wherein L3Functional Portion is a longest length of the functional portion and L3Housing is a longest length of the interior volume of the housing.
A system for self-injection comprising:
- a self-injection device having a housing having an interior volume consisting of a functional portion and a non-functional portion, the functional portion comprising:
- a substrate having a depression or cavity extending inwardly from a surface thereof, the depression or cavity defining a reservoir containing a single dose of a fluid to be delivered to a user;
- a microneedle mounted to the substrate in fluid communication with the reservoir and extendable through the housing;
- and
- a drive mechanism in communication with the substrate for expelling the fluid from the reservoir through the microneedle;
- and
- an external controller in communication with the drive mechanism deployable to initiate expulsion of the fluid from the reservoir through the microneedle,
- wherein a volume of the functional portion of the interior volume is less than 40% of the interior volume of the housing.
Dependencies are inferred from the claim text.