Automated control mechanisms and methods for controlling fluid flow in a hemodialysis apparatus

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United States of America Patent

PATENT NO 11725645
APP PUB NO 20200171226A1
SERIAL NO

16723408

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Abstract

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Automated control mechanisms and methods for controlling fluid flow in a hemodialysis apparatus are described. The methods can involve a controller receiving information from a pressure sensor in a control chamber of a reciprocating diaphragm-based blood pump and causing the application of a time-varying pressure waveform on a diaphragm of the blood pump during a fill-stroke of the blood pump. The controller can be configured and programmed to monitor a pressure variation in the control chamber measured by the pressure sensor and to compare the measured pressure variation to a pre-determined value. Based on such comparison, the controller can initiate a procedure to pause or stop a dialysate pump of the hemodialysis apparatus if the magnitude of the measured pressure variation deviates from the pre-determined value.

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Patent Owner(s)

Patent OwnerAddress
DEKA PRODUCTS LIMITED PARTNERSHIP340 COMMERCIAL ST MANCHESTER NH 03101

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Dale, James D Milton, US 157 11584
Demers, Jason A Manchester, US 246 17422
Flynn, Catharine N Manchester, US 16 1221
Grant, Kevin L Litchfield, US 219 11698
Tracey, Brian D Litchfield, US 126 4898
van, der Merwe Dirk A Canterbury, US 106 5464
Wilt, Michael J Windham, US 115 11074

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