Hemodialysis monitoring system for hemodialysis machines
May 9, 2014. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3802562 Device for taking a liquid sample Apparatus and method for determining serum concentrates of metabolites by monitoring dialysate fluid Computer-control medical care system Dialysis apparatus with regulated mixing of the dialysis solution Hemodialysis processes and hemodialysis solutions Apparatus and control kit for analyzing blood sample values including hematocrit Hemodialysis with dialysate osmolarity varied non-linearly with time Multi-enzyme bioreactor therapy for cancer Dialysis system and method therefor InventorsAssigneeApplicationNo. 239936 filed on 05/09/1994US Classes:210/646, Hemodialysis210/96.2, With membrane210/739, Including controlling process in response to a sensed condition422/68.1, Means for analyzing liquid or solid sample436/108Urea or blood urea nitrogenExaminersPrimary: Drodge, Joseph W.Attorney, Agent or FirmForeign Patent References
International ClassesB01D 061/30B01D 061/32 AbstractAn improved on-line real time hemodialysis monitoring system for hemodialysis treatment. The hemodialysis monitoring system quantitates the rate and amount of a constituent, such as urea, removed during the hemodialysis treatment by measuring the constituent concentrations as a function of time in the spent dialysate effluent from a hemodialysis machine. A quantity of the spent dialysate effluent is removed from the dialysate effluent waste line periodically for testing. A urea concentration time profile can be analyzed to determined the urea removal, KT/V, URR, SRI and normalized protein catabolic rate (nPCR) indices. The hemodialysis monitoring system preferably can obtain a dialysate sample equilibrated with the blood prior to the start of a hemodialysis treatment. The hemodialysis monitoring system includes a two pool analysis for taking into account the constituent concentration differences in the extracellular and intracellular spaces in the hemodialysis patient during the hemodialysis treatment.Other References
Field of SearchWITH ALARM, INDICATOR, REGISTER, RECORDER, SIGNAL OR INSPECTION MEANSIn effluent conduit With membrane AUTOMATIC CONTROL Dialyzer with dialysate proportioning means Hemodialysis Maintaining critical concentration(s) Including controlling process in response to a sensed condition Electrical property sensing HEMOULTRAFILTRATE VOLUME MEASUREMENT OR CONTROL PROCESSES With significant electrical circuitry or nominal computer device Method Peritoneal dialysis Urea or blood urea nitrogen Means for analyzing liquid or solid sample |
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