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:
Aug. 04, 1998
Filed:
Feb. 14, 1997
Rodney S Kenley, Libertyville, IL (US);
Dawn Matthews, Grayslake, IL (US);
Douglas L Wilkerson, Gurnee, IL (US);
Joel DeJesus, Buffalo Grove, IL (US);
Tom L Brose, Gurnee, IL (US);
Andrew Gebhardt, Lake Zurich, IL (US);
Lori A Plummer, Spring Grove, IL (US);
Frederick H Peter, Jr, Barrington, IL (US);
Russel L Sage, McHenry, IL (US);
Dennis M Treu, Gurnee, IL (US);
Michael Edward Wiklund, Concord, MA (US);
William R Dolan, Newtonville, MA (US);
Shawn O Barrett, Grayslake, IL (US);
AKSYS, Ltd., Lincolnshire, IL (US);
Abstract
A user interface for a medical instrument such as a dialysis machine is described which uses both a touch screen and at least one hard key off of the touch screen to effectuate a change in a parameter associated with the operation of the machine or the treatment session. The user interface is connected to a central computer control system having a host microprocessor and a backup safety microprocessor. The hard key is directly wired to the safety microprocessor. After the user selects a new parametric value on the touch screen, the user presses a hard key. The host and safety microprocessors implement a verification routine to insure that the entered parameter is appropriate for the patient's treatment and the display on the touch screen. If the verification procedure ends in a positive result, the user is prompted to presses a second hard key to confirm the change, causing an additional verification check to be performed. If the additional verification check is successful, the parametric value is entered into a memory (such as a hard disk) storing instructions for operation of the medical instrument.