Medicine dispensing device

  • US 8,226,608 B2
  • Filed: 07/13/2011
  • Issued: 07/24/2012
  • Est. Priority Date: 04/06/2005
  • Status: Active Grant
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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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