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Devices and methods for delivering a beneficial agent to a user

  • US 10,213,546 B2
  • Filed: 03/08/2016
  • Issued: 02/26/2019
  • Est. Priority Date: 12/31/2013
  • Status: Active Grant
First Claim
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1. A device for delivering a beneficial agent, comprising:

  • a pump including a pump housing containing a pump assembly having a fluid drive component, the pump housing having a receiving region disposed proximate the fluid drive component, the pump housing comprising a rear closure portion including a membrane disposed between the receiving region and the fluid drive component; and

    a cassette including a cassette housing comprising a cassette body region defining a fluid reservoir chamber therein and a delivery tube assembly extending from the fluid reservoir chamber, the cassette further including a cassette base region having a boundary configured to be received by the receiving region;

    wherein the delivery tube assembly comprises a peristaltic tube that engages an occlusion sensor proximate the rear closure portion when the cassette base region boundary is received by the receiving region, and the membrane includes an occlusion sensor protrusion configured to cover a portion of the occlusion sensor.

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