Fresenius Medical Care Holdings, Inc.

Mark David Tuckwell

Ross Jones

Martin Joseph Crnkovich

Lynn E Jensen

Simon Roderick Grover

Shashikant Dattatraya Kalaskar

Pranav Chopra

Rupert Menzies

Ross Peter Jones

This disclosure relates to medical fluid sensors and related systems and methods. In certain aspects, a nuclear magnetic resonance device includes a support frame, a first magnet connected to the support frame, a second magnet connected to the support frame in a manner such that the second magnet is disposed within the magnetic field of the first magnet and a magnetic attraction exists between the first magnet and the second magnet, and a spacer disposed between the first magnet and the second magnet. The spacer is configured to maintain a space between the first magnet and the second magnet.

Dialysis system with sample concentration determination device using magnet and radio frequency coil assemblies

This disclosure relates to medical fluid sensors and related systems and methods. In some aspects, a circuit includes a radio frequency coil tuned to at least one frequency and at least one switching circuit directly connected to the radio frequency coil. The radio frequency coil is characterized by a high impedance.

Nuclear magnetic resonance module for a dialysis machine

This disclosure relates to medical fluid sensors and related systems and methods. In certain aspects, a method includes reading an indicia of a medical fluid cartridge to determine a volume of a fluid passageway of the medical fluid cartridge indicated by the indicia, receiving radio frequency energy generated by excited atoms in medical fluid in the fluid passageway of the medical fluid cartridge, and determining a concentration of a substance in the medical fluid based on the determined volume of the fluid passageway of the medical fluid cartridge indicated by the indicia and the received radio frequency energy generated by the excited atoms in the medical fluid in the fluid passageway of the medical fluid cartridge.

Medical fluid sensing and concentration determination in a fluid cartridge with multiple passageways, using a radio frequency device situated within a magnetic field

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Hertfordshire, United Kingdom

Mark David Tuckwell