Systems for fluid reservoir retention

  • US 9,033,924 B2
  • Filed: 01/18/2013
  • Issued: 05/19/2015
  • Est. Priority Date: 01/18/2013
  • Status: Active Grant
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First Claim
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1. A fluid reservoir for use with a fluid infusion device, comprising:

  • a first portion having a first end and a second end, the first end including an alignment feature and a delivery port;

    a second portion including a housing coupled to the second end of the first portion and a plunger having a rack, with the plunger movable within the housing and the first portion to advance a fluid out of the delivery port, the rack contained wholly within the first portion and the second portion;

    a reservoir defined between the first portion and the second portion that receives the fluid;

    wherein the rack cooperates with a pinion to advance the plunger within the first portion;

    wherein the housing further comprises;

    a base that is couplable to the second end of the first portion; and

    a rack receiving portion including a contact surface adjacent to the base and a removal portion, wherein the base defines an opening and the rack receiving portion defines a bore in communication with the opening to slidably receive the rack, the bore including a cutout portion to enable the rack to engage the pinion.

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