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. 23, 1997
Filed:
Apr. 28, 1995
Chi Chen, Hawthorn Woods, IL (US);
Paul Emerson, St. Louis Park, MN (US);
Prakash Keshaviah, Plymouth, MN (US);
Baxter International Inc., Deerfield, IL (US);
Abstract
There is disclosed a method and apparatus for automatically conducting peritoneal equilibration testing. The method involves removing a sample of overnight dwell fluid from a patient in an amount sufficient to determine the concentration of a metabolite in the drain fluid. The concentration of the metabolite in the sample is then detected and the overnight dwell fluid is drained and weighed. A known weight of dialysate fluid is instilled into a patient and thereafter there are periodically withdrawn samples of the dialysate fluid and the concentration of metabolite in each sample is determined. The ratio of metabolite concentration of each of the periodically drawn samples to metabolite concentration for the overnight dwell fluid is determined. The patient is then drained after a predetermined dwell time and the volume of drained dialysate is determined. The mass transfer area coefficient of the patient's peritoneal membrane is then obtained as a function of the measured variables. Means are provided for conducting the method for each of the steps described.