Device for subcutaneous delivery of fluid medicament
First Claim
1. A device for delivering a fluid medicament into or through the skin of a user, the device comprising:
- a reusable part having a generally T-shaped configuration including a middle leg portion, the middle leg portion having a first side including a first sensor and a second side, opposite the first side, including a second sensor, the reusable part comprising;
a drive component contained in the middle leg portion; and
a control unit for controlling the drive component; and
a disposable part engageable with the reusable part, the disposable part comprising;
a first reservoir for containing the fluid medicament;
a first plunger head moveable by a first lead screw in the first reservoir; and
a first nut threadedly engaged with a thread of the first lead screw and operable to displace the first lead screw upon rotation of the first nut, wherein when the reusable part and the disposable part are attached, the first nut is operably coupled with and rotatable by the drive component in a direction controllable by the control unit.
1 Assignment
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Accused Products
Abstract
An improved device delivers a fluid medicament to the subcutaneous tissue of a user. The device is better suited for patients with Parkinson'"'"'s Disease and other central nervous system disorders, than conventional infusion devices. The device can include a reusable part including a drive component (e.g., motor) and control electronics and a disposable part including a medicament reservoir. Medicament can be evacuated from the medicament reservoir by a plunger assembly that includes a plunger attached to a lead screw that is rotated by a nut, all within the disposable part. The device can be fluidically coupled with the tissue via a flexible cannula. Various embodiments relate to an improved cannula insertion mechanism that delivers the cannula under a force applied by a spring. Various embodiments relate to improved filling of the device, for example, using a vial adapter and an automated filling station.
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Citations
26 Claims
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1. A device for delivering a fluid medicament into or through the skin of a user, the device comprising:
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a reusable part having a generally T-shaped configuration including a middle leg portion, the middle leg portion having a first side including a first sensor and a second side, opposite the first side, including a second sensor, the reusable part comprising; a drive component contained in the middle leg portion; and a control unit for controlling the drive component; and a disposable part engageable with the reusable part, the disposable part comprising; a first reservoir for containing the fluid medicament; a first plunger head moveable by a first lead screw in the first reservoir; and a first nut threadedly engaged with a thread of the first lead screw and operable to displace the first lead screw upon rotation of the first nut, wherein when the reusable part and the disposable part are attached, the first nut is operably coupled with and rotatable by the drive component in a direction controllable by the control unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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Specification