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Infusion device assembly

  • US 9,889,252 B2
  • Filed: 06/13/2014
  • Issued: 02/13/2018
  • Est. Priority Date: 06/14/2013
  • Status: Active Grant
First Claim
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1. A wearable infusion device assembly comprising:

  • a first component forming a first portion of a housing of the assembly and comprising an inwardly deflectable element; and

    a second component forming a second portion of the housing of the assembly and comprising a plurality of engagement elements, wherein each engagement element of the plurality of engagement elements comprises (i) a tapered portion configured to cause the inwardly deflectable element of the first component to deflect inwardly as the second component is advanced about the first component and (ii) a shoulder proximal to the tapered portion,wherein the inwardly deflectable element of the first component is configured to deflect outwardly after the shoulders pass the inwardly deflectable element as the second component is advanced about the first component,wherein the shoulder and the inwardly deflectable element are configured to cooperate to prevent withdrawal of the second component over the first component after the inwardly deflectable element of the first component has deflected outwardly after the shoulders have passed the inwardly deflectable element as the second component is advanced about the first component,wherein the second portion of the housing defines at least one channel positioned between two engagement elements of the plurality of engagement elements, wherein the at least one channel is configured to provide access to the inwardly deflectable element; and

    further comprising a disengagement component configured to advance over the second component towards the first component, the disengagement component having a disengagement element comprising a tapered portion configured to cause the inwardly deflectable element of the first component to deflect inwardly as the disengagement component is advanced about the first component,wherein the tapered portion of the disengagement element is configured to sufficiently inwardly deflect the inwardly deflectable element to allow the second component to be withdrawn over the first component.

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