Patent · US Active

Infusion pump apparatus having convex platen surface

US11446431B2 · kind B2 · utility

0Cited by

9References

19Claims

0Family size

Assignee

Zevex, Inc. · US

Inventors

Azur Azapagic · Cottonwood Heights, US
Kent F. Beck · Layton, US
J. Ryan Stanfield · Sandy, US

Key dates

Filing date	Nov 14, 2019
Grant date	Sep 20, 2022
Priority date	—
Expiry date	May 14, 2040

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61M2205/12
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A peristaltic infusion pump system has a convex platen surface opposite a linear peristaltic pumping mechanism. The convex platen surface may be part of a cassette of an administration set removably loadable in an infusion pump, or the convex platen surface may be a feature of the pump itself. Pumping efficiency is improved without giving up the ability to have independently controlled compensating fingers. The convex platen surface may have a trapezoidal profile, a curved profile, or a hybrid profile having upstream and downstream inclined portions connected by an intermediate curved portion.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.