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Disposable infusion device with snap action actuation

  • US 7,771,391 B2
  • Filed: 09/28/2007
  • Issued: 08/10/2010
  • Est. Priority Date: 09/28/2007
  • Status: Active Grant
First Claim
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1. A wearable infusion device comprising:

  • a reservoir that holds a liquid medicament;

    an outlet port that delivers the liquid medicament to a patient;

    a pump that displaces a volume of the liquid medicament to the outlet port when actuated, wherein the pump is configured to be actuated multiple times; and

    a control that actuates the pump, the control comprising a snap action actuator, wherein the snap action actuator comprises a bendable member, an abutment member that initially engages and holds the bendable member under compression, a first cam surface that, when translated in a first direction, raises the bendable member above the abutment member to release the bendable member, a second cam surface that, when translated in a second direction, opposite the first direction, raises the bendable member above the abutment member and returns the bendable member into engagement with the abutment member under compression, and, a spring that forces the second cam surface to translate in the second direction.

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