Medicine Dispensing Device
First Claim
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1. A wearable medicine dispensing device, comprising:
- a portable housing that defines a space to receive a medicine for incremental dispensation to a user;
a piston rod being arranged in the portable housing and being movable in individual forward increments toward the medicine when the medicine is received in the space;
a drive mechanism arranged in the portable housing and coupled to the piston rod so as to longitudinally advance the piston rod in each of the individual forward increments for medicine dispensation when the medicine is received in the space;
a battery-powered, reversible motor arranged in the portable housing and coupled to the drive mechanism such that rotation of the reversible motor urges the drive mechanism to advance piston rod in each of the individual forward increments; and
wherein the drive mechanism is configured to longitudinally advance the piston rod in one of the individual forward increments in response to each motor rotation cycle including one or more full rotations of the reversible motor in a first rotational direction and one or more full rotations of the reversible motor in a second reverse rotational direction.
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Abstract
Some embodiments of a wearable, disposable medicine dispensing device may include a piston rod that is advanced to dispense medicine from the device. A rotational motor may be coupled to a drive mechanism so as to carry out a certain number of revolutions and thereby displace the piston rod by a desired distance. Such a device can be used in a method of dispensing liquid medicine.
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Citations
15 Claims
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1. A wearable medicine dispensing device, comprising:
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a portable housing that defines a space to receive a medicine for incremental dispensation to a user; a piston rod being arranged in the portable housing and being movable in individual forward increments toward the medicine when the medicine is received in the space; a drive mechanism arranged in the portable housing and coupled to the piston rod so as to longitudinally advance the piston rod in each of the individual forward increments for medicine dispensation when the medicine is received in the space; a battery-powered, reversible motor arranged in the portable housing and coupled to the drive mechanism such that rotation of the reversible motor urges the drive mechanism to advance piston rod in each of the individual forward increments; and wherein the drive mechanism is configured to longitudinally advance the piston rod in one of the individual forward increments in response to each motor rotation cycle including one or more full rotations of the reversible motor in a first rotational direction and one or more full rotations of the reversible motor in a second reverse rotational direction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification