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Fluid dispensing device with a flow detector

  • US 9,227,010 B2
  • Filed: 04/29/2013
  • Issued: 01/05/2016
  • Est. Priority Date: 11/01/2010
  • Status: Active Grant
First Claim
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1. A portable therapeutic fluid delivery device for delivering a therapeutic fluid into a body of a patient, the fluid delivery device comprising:

  • a first part comprising,a driving mechanism, the driving mechanism including a rotary motor and at least one gear;

    a flow detector comprising at least one heating element and at least two temperature sensors, anda processor;

    a second part comprising,a reservoir,an exit port, anda delivery tube communicating between the reservoir and the exit port;

    wherein the first part and the second part are designed such that upon pairing of the first part with the second part, the at least one heating element and the at least two temperature sensors touch the delivery tube, and wherein the processor, upon activation of the at least one heating element, detects a flow condition of the therapeutic fluid inside the delivery tube based on a signal provided by the at least two temperature sensors; and

    wherein the rotary motor is configured to automatically adjust motor operation in a positive or negative feedback, so that the fluid delivery device is configured to adjust or control delivery of the therapeutic fluid through the delivery tube based, at least in part, on the determined flow rate such that the therapeutic fluid is delivered at substantially a pre-determined delivery rate.

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