Patent ID: 11951282
Assignee: BAXTER INTERNATIONAL INC.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. An infusion pump configured for pumping fluid through a tubular administrative set at a desired flow rate over a specified duration, comprising:
a pumping mechanism constructed and arranged for releasably receiving the tubular administrative set and for exerting a pulsing force on the tubular administrative set, thus pressurizing a portion of the tubular administrative set for creating a flow of fluid from an outlet of the tubular administrative set; and
a controller connected to said pumping mechanism and configured for operating said pumping mechanism;
said controller being configured to:
determine a first pulse frequency to obtain a target fluid volume of fluid infused over a portion of the specified duration and the desired flow rate;
output a control signal to said pumping mechanism for operating said pumping mechanism at said first pulse frequency;
and
adjust the first pulse frequency to a second pulse frequency, said second pulse frequency being different from said first pulse frequency;

wherein said adjusting the first pulse frequency comprises adjusting the first pulse frequency at predetermined volume points based on a comparison of historical data of administrative set flow rate accuracy in terms of % error with an intended volume of fluid infused, such that said second pulse frequency compensates for a degradation of a material of the administrative set.