DRUG DELIVERY DEVICE
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Accused Products
Abstract
A drug delivery device having a housing containing a gas generator controlled by an electronic controller. The gas generator generates gas into a reciprocable chamber, whereby reciprocation of the chamber causes a lever to reciprocate a pawl, and this action causes a ratchet to The device may also be provided with manually control for delivering a bolus dose of drug when necessary.
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Citations
75 Claims
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1-55. -55. (canceled)
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56. A wearable drug delivery device, comprising:
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a housing with an adherent patient surface for placing on a patient, and a reservoir disposed within the housing; a cannula in fluid communication with the reservoir and movable relative to the patient surface between a retracted position within the housing and an exposed position in which at least a portion of the cannula extends through the patient surface outside of the housing; a piston slidably supported within the reservoir and operable to expel a drug from the reservoir; and a drive system coupled to the piston, the drive system being operable to advance the piston linearly and intermittently in a series of increments to expel a drug from the reservoir. - View Dependent Claims (57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68)
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69. A wearable drug delivery device, comprising:
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a housing with an adherent patient surface for placing on a patient, and a reservoir disposed within the housing; a cannula in fluid communication with the reservoir and movable relative to the patient surface between a retracted position within the housing and an exposed position in which at least a portion of the cannula extends through the patient surface outside of the housing; a piston slidably supported within the reservoir and operable to expel a drug from the reservoir; and a drive system coupled to the piston, the drive system being operable in a plurality of cycles to linearly and intermittently advance the piston to expel the a drug from the reservoir.
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70. A method of manufacturing a wearable drug delivery device, comprising:
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providing a housing having a reservoir disposed therein, the reservoir having a piston slidably supported therein that is operable to expel a drug from the reservoir; providing an adherent patient surface on the housing for adhering the device to the patient; providing a movable a cannula in the housing, the cannula being movable from a retracted position within the housing to an exposed position in which at least a portion of the cannula extends through the patient surface outside of the housing; fluidly connecting the cannula to the reservoir; providing a drive system coupled to the piston, the drive system having a controller and being operable to advance the piston linearly and intermittently in a series of increments to expel a drug from the reservoir. - View Dependent Claims (71, 72, 73, 74, 75)
operatively connecting the first and second drive members to cooperate to slidably displace the second drive member and the piston in the reservoir in a first linear direction to expel a drug from the reservoir; and engaging the first drive member with the second drive member so that the rotation of the first drive member causes the linear displacement of the second drive member.
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72. The method according to claim 70, wherein the reservoir comprises a prefilled cartridge, and the method further comprises prefilling the cartridge and subsequently placing the prefilled cartridge into the housing.
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73. The method according to claim 72, wherein placing the prefilled cartridge into the housing comprises linearly sliding the prefilled cartridge in the first linear direction into an opening in the housing.
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74. The method according to claim 73, wherein placing the prefilled cartridge into the housing fluidly connects the prefilled cartridge with the movable cannula.
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75. The method according to claim 71, wherein the first drive member is rotatably moveable about an axis that is substantially perpendicular to the first linear direction.
Specification