US 12,070,540 B2
Wetness detector with integrated inertial measurement unit configured for use in a dialysis system
Colin Weaver, Pleasanton, CA (US); Martin Crnkovich, Walnut Creek, CA (US); and David Yuds, Hudson, NH (US)
Assigned to Fresenius Medical Care Holdings, Inc., Waltham, MA (US)
Filed by Fresenius Medical Care Holdings, Inc., Waltham, MA (US)
Filed on Nov. 18, 2021, as Appl. No. 17/529,571.
Prior Publication US 2023/0149611 A1, May 18, 2023
Int. Cl. A61M 1/16 (2006.01); A61M 1/36 (2006.01)
CPC A61M 1/1692 (2013.01) [A61M 1/1601 (2014.02); A61M 1/3621 (2013.01); A61M 2205/18 (2013.01); A61M 2205/3327 (2013.01); A61M 2205/3553 (2013.01); A61M 2205/8206 (2013.01); A61M 2230/04 (2013.01); A61M 2230/63 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A dialysis system for providing a dialysis treatment to a patient, the dialysis system comprising:
a dialysis machine including a dialysate flow path;
an extracorporeal blood flow path including a connector coupled to a limb of the patient at a blood access point;
a dialyzer arranged and configured to receive dialysate from the dialysate flow path and blood from the extracorporeal blood flow path; and
a detector assembly coupled to the limb of the patient adjacent to the blood access point, the detector assembly including:
a wetness detector arranged and configured to detect blood;
an integrated inertial measurement unit (IMU) arranged and configured to detect a patient's pulse; and
a transmitter arranged and configured to transmit information or data relating to the detection of blood, movement of the limb, the patient's pulse, or a combination thereof, to the dialysis machine;
wherein the IMU is arranged and configured to measure the patient's pulse either by monitoring the patient's blood vessels or monitoring blood traveling through tubing of the dialysis system; or any combination thereof.