Infusion device having gear assembly initialization
AssigneeMedtronic MiniMed, Inc.
InventorsJuan M. Alderete, JR., Salman Monirabbasi
Life of this patent
Estimating the term…
Abstract
Apparatus are provided for infusion devices and related operating methods. An exemplary infusion device includes a housing to receive a shaft coupled to a plunger disposed in a reservoir and a gear assembly including a first gear to engage the shaft, wherein the first gear exhibits rotational freedom in a direction opposite a delivery direction. One exemplary method of operating the infusion device comprises identifying a reset condition and in response to the reset condition, operating a motor having a rotor coupled to the gear assembly to provide the rotational freedom for the first gear.
Claims30
An infusion device comprising:
- a housing to receive a shaft coupled to a plunger disposed in a reservoir;
- and
- a gear assembly including a first gear to engage the shaft, the first gear having rotational freedom in a direction opposite a delivery direction.
An infusion device comprising:
- a housing to receive a shaft coupled to a plunger disposed in a reservoir;
- a gear assembly including a first gear to engage the shaft;
- a motor having a rotor coupled to the gear assembly;
- and
- a control module coupled to the motor to operate the motor to provide rotational freedom for the first gear in a direction opposite a delivery direction for the plunger in response to a reset condition.
An infusion device comprising:
- a housing to receive a shaft coupled to a plunger of a reservoir;
- a gear assembly including a first gear to engage the shaft;
- and
- a mechanical element coupled to the first gear, the mechanical element applying force resulting in the first gear exhibiting rotational freedom in a direction opposite a delivery direction of the plunger.
Dependencies are inferred from the claim text.