Load suspension and weighing system for a dialysis machine reservoir

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United States of America Patent

PATENT NO 9157786
SERIAL NO

13726450

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A load suspension and weighing system for a removable reservoir unit of a portable dialysis machine includes a centrally located flexure assembly. The flexure assembly includes magnets and a number of flexure rings which allow for movement of the magnets about a fixed circuit board. Sensors in the circuit board sense changes in the magnetic field as the magnets move in relation to the circuit board. The magnetic field changes produce a voltage output which is used by a processor to generate weight calculations. The top of the flexure assembly is attached to the interior of the dialysis machine. The entirety of the reservoir unit is suspended by a first internal frame that is attached to the bottom of the flexure assembly. Having a single flexure assembly positioned above the reservoir unit provides more accurate weight measurements while also preventing damage to the assembly from water spillage.

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Patent Owner(s)

  • FRESENIUS MEDICAL CARE HOLDINGS, INC.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fazio, Joe Santa Ana, US 4 20
Fulkerson, Barry Neil Longmont, US 51 1416
Huang, Alec Irvine, US 19 418
Kelly, Brian Thomas Anaheim Hills, US 12 202
Nolan, Tam Oceanside, US 15 158
Smith, Mark Longmont, US 340 5011

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