The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 12, 2006
Filed:
Jul. 22, 2003
Chad E. Bouton, Delaware, OH (US);
Dale M. Radcliff, Dublin, OH (US);
Steven R. Nelson, Grove City, OH (US);
Clark E. Fortney, Gahanna, OH (US);
Chad E. Bouton, Delaware, OH (US);
Dale M. Radcliff, Dublin, OH (US);
Steven R. Nelson, Grove City, OH (US);
Clark E. Fortney, Gahanna, OH (US);
Abbott Laboratories, Abbott Park, IL (US);
Abstract
A method is disclosed for determining the operating condition of a medical pump based on data derived from a pressure sensor and a position sensor. The pressure sensor generates pressure data by sensing the force on the pumping element. The position sensor generates position data by tracking the pumping cycle and determining the position of the pumping element. The pump pressure data and pump position data are processed and the calculated results compared with a pre-determined threshold value to determine the operating condition of the pump. The three main types of operating conditions of concern are the following: normal condition, where liquid is present and no leaks exist in pumping chamber; leak condition, where liquid is present but a leak exists in the pumping chamber; and air stroke condition, where the chamber contains some air.