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Pressure vented fluid reservoir having a movable septum

  • US 8,864,726 B2
  • Filed: 02/17/2012
  • Issued: 10/21/2014
  • Est. Priority Date: 02/22/2011
  • Status: Active Grant
First Claim
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1. A fluid reservoir for a fluid infusion device that delivers a medication fluid to a body, the fluid reservoir comprising:

  • a main body section that defines a fluid chamber for the medication fluid;

    a fluid delivery port coupled to and extending from the main body section, the fluid delivery port comprising a fluid conduit that communicates with the fluid chamber, and the fluid delivery port terminating at a port opening; and

    a septum movably coupled to the fluid delivery port, the septum being movable between a sealed position where the septum forms a circumferential seal around the port opening, and a vented position that permits fluid to flow out of the fluid delivery port via the port opening; and

    a valve sleeve movably coupled to the fluid delivery port, wherein the septum is coupled to the valve sleeve in a fixed position relative to the valve sleeve, and wherein the valve sleeve comprises;

    an attachment receptacle that receives the fluid delivery port, the attachment receptacle being sized to accommodate translational movement of the valve sleeve relative to the fluid delivery port; and

    a septum receptacle adjacent to the attachment receptacle, wherein the septum receptacle receives and holds the septum in the fixed position.

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