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US 12,364,810 B2Granted
Drug delivery device with needle actuation mechanism
AssigneeSensile Medical AG
InventorsOliver Wieser, Maximilian Marhöfer
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AssigneeSensile Medical AG
InventorsOliver Wieser, Maximilian Marhöfer
Estimating the term…
A drug delivery device (1) comprising a delivery unit (2) receiving a drug cartridge (3) containing a drug to be administered to a patient in need thereof, the delivery unit comprising a subcutaneous delivery mechanism (7) including a needle (24), a needle support (8) to which the needle is mounted, and a needle actuation mechanism (9) configured to move the needle from a retracted position within a housing (5) of the delivery unit (2), to an extended delivery position where the needle projects through a base wall (14) of the housing. The needle actuation mechanism comprises a rotary actuator (10) configured to engage an engagement lever (11) coupled to the needle support (8) for translating the needle support between retracted and extended delivery positions.
A drug delivery device comprising a delivery unit receiving a drug cartridge containing a drug to be administered to a patient in need thereof, the delivery unit comprising a subcutaneous delivery mechanism including a needle, a needle support to which the needle is mounted, and a needle actuation mechanism configured to move the needle from a retracted position within a housing of the delivery unit, to an extended delivery position where the needle projects through a base wall of the housing, the needle actuation mechanism comprising a rotary actuator configured to engage an engagement lever coupled to the needle support for translating the needle support between the retracted position and the extended delivery position, wherein the needle support comprises a translation guide member slidably mounted with respect to the housing, and a rotation guide member rotatably mounted to the translation guide member, the needle being fixed to the rotation guide member configured to tilt the needle in a fully retracted park position after full retraction of the needle, and the delivery unit comprising a mounting surface with an adhesive layer on an underside of the base wall from mounting against a patient's skin.
A drug delivery device comprising a delivery unit receiving a drug cartridge containing a drug to be administered to a patient in need thereof, the delivery unit comprising a subcutaneous delivery mechanism including a needle, a needle support to which the needle is mounted, and a needle actuation mechanism configured to move the needle from a retracted position within a housing of the delivery unit, to an extended delivery position where the needle projects through a base wall of the housing, the needle actuation mechanism comprising a rotary actuator configured to engage an engagement lever coupled to the needle support for translating the needle support between the retracted position and the delivery position, wherein the needle support comprises a pivot support and the engagement lever comprises a pivot portion rotatably mounted around a rotation axis wherein the rotation axis is on the pivot support, wherein the engagement lever is pivotally mounted on the needle support via the pivot portion and the pivot support such that said rotation axis is translated with said needle support, and wherein the engagement lever elastically engages the needle support configured to allow the engagement lever to elastically pivot and bias against the rotary actuator of the needle actuation mechanism in the extended delivery position such that the rotary actuator may turn freely in a delivery direction (R+).
Dependencies are inferred from the claim text.