×

Ambulatory infusion devices and associated methods

  • US 10,300,195 B2
  • Filed: 01/19/2017
  • Issued: 05/28/2019
  • Est. Priority Date: 01/20/2016
  • Status: Active Grant
First Claim
Patent Images

1. A method of operating an infusion device, comprising the steps of:

  • actuating a fluid transfer device, which is configured to deliver a predetermined volume during each actuation, in accordance with a delivery profile that includes a plurality of fluid transfer device actuations;

    determining whether an actual volume delivered during a fluid transfer device actuation is the predetermined volume by sensing pressure, at a single location with a single pressure sensor that is located upstream of a flow restrictor and that has a compliant diaphragm, a compliance value and a sensor apparatus located in spaced relation to the compliant diaphragm, and determining the magnitude of the of a pressure spike associated with the fluid transfer device actuation and multiplying the magnitude of the pressure spike by the compliance value; and

    adjusting the number of actuations in the delivery profile in response to the actual volume delivered differing from the predetermined volume.

View all claims
  • 3 Assignments
Timeline View
Assignment View
    ×
    ×