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Fluid delivery device, transcutaneous access tool and fluid drive mechanism for use therewith

  • US 10,420,883 B2
  • Filed: 08/02/2016
  • Issued: 09/24/2019
  • Est. Priority Date: 03/30/2012
  • Status: Active Grant
First Claim
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1. A fluid delivery device comprising:

  • a fluid reservoir;

    a transcutaneous access tool fluidly coupled to the fluid reservoir; and

    a drive mechanism for driving fluid from the fluid reservoir, the drive mechanism comprising;

    a plunger received in the fluid reservoir;

    an elongated assembly comprising a first elongated member and a second elongated member;

    the first elongated member extending from the plunger;

    the second elongated member coupled to the first elongated member;

    a drive wheel; and

    a clutch mechanism coupled to the drive wheel wherein the clutch mechanism is configured to allow the second elongated member to pass through when disengaged and is configured to grip the second elongated member without threaded engagement when engaged, such that the drive wheel rotates the second elongated member to advance the first elongated member and the plunger into the fluid reservoir.

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