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:
Jul. 05, 1994
Filed:
Nov. 12, 1992
Jeffrey B Grogan, West Linn, OR (US);
Thore Falkvall, Helsingborg, SE;
Harley D Johnson, Portland, OR (US);
Thomas D Kelly, Portland, OR (US);
Alan G Wolfe, Portland, OR (US);
Althin Medical, Inc., Miami, FL (US);
Abstract
Methods are disclosed for providing certain operational instructions to a hemodialysis machine. The hemodialysis machine possesses a programmable memory and a capability of operating according to a time-varying parameter such as variable ultrafiltration. According to the methods, the machine operator enters into the memory a desired time period, a target cumulative value of the time-varying parameter, such as target UF volume, and a proposed time-varying profile of the time-varying parameter that is representable as a plot of coordinates in a region defined by an ordinate of values of the parameter and a time-based abscissa, wherein the plot defines a profile cumulative value of the parameter. If the profile cumulative value is not equal to the target cumulative value, then the proposed time-varying profile is changed along the ordinate so that the profile cumulative value is made equal to the target cumulative value. The machine then operates according to the changed profile to enable the apparatus to achieve, while operating, the entered target cumulative value within the time period.