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LOW COST FLUID DELIVERY DEVICE

  • US 20180036475A1
  • Filed: 10/13/2017
  • Published: 02/08/2018
  • Est. Priority Date: 08/25/2014
  • Status: Active Grant
First Claim
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1. A device for delivering a fluid to a user'"'"'s body comprising:

  • a housing having a skin-contacting surface and an adhesive layer on the skin-contacting surface for attaching the device to the user'"'"'s body;

    a reservoir contained within the housing to contain the fluid;

    a source of pressure to exert a force to expel the fluid contained in the reservoir;

    a tubing having a first end and a second end, the first end of the tubing connected to the housing;

    a bolus port connected to the second end of the tubing, the bolus port adapted to receive a needle of a syringe containing an optional extra dose of fluid;

    a cannula in fluid communication with the reservoir and the bolus port, the cannula extending from the skin-contacting surface of the housing and inserted into the user'"'"'s body for delivery of the fluid to the user'"'"'s body;

    a first fluid flow path originating from the reservoir to the cannula;

    a second fluid flow path originating from the bolus port through the tubing and to the cannula;

    a pressure regulator valve contained within the housing and located along the first fluid flow path between the reservoir and the cannula to control the pressure of the fluid expelled from the reservoir to maintain a constant fluid flow prior to reaching the cannula;

    a one-way valve contained within the housing and located along the first fluid flow path between the pressure regulator valve and the cannula to prevent backflow from the second fluid flow path;

    wherein the device provides a continuous delivery of the fluid along the first fluid flow path from the reservoir to the cannula and the optional extra dose of fluid along the second fluid flow path from the bolus port to the cannula.

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