US 12,073,648 B2
Wetness detection with biometric sensor device for use in blood treatment
Colin Weaver, Pleasanton, CA (US); Martin Joseph 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 Mar. 16, 2022, as Appl. No. 17/696,020.
Application 17/696,020 is a division of application No. 15/899,573, filed on Feb. 20, 2018, granted, now 11,281,878.
Prior Publication US 2022/0207905 A1, Jun. 30, 2022
Int. Cl. G16H 40/60 (2018.01); A61M 1/14 (2006.01); G06V 40/10 (2022.01); G06V 40/12 (2022.01); G08B 21/20 (2006.01); G16H 20/17 (2018.01)
CPC G06V 40/12 (2022.01) [A61M 1/14 (2013.01); G06V 40/10 (2022.01); G08B 21/20 (2013.01); G16H 20/17 (2018.01); G16H 40/60 (2018.01); A61M 2205/15 (2013.01)] 26 Claims
OG exemplary drawing
 
1. A wetness detection device that allows for patient identification comprising:
a housing,
a biometric sensor, coupled to the housing, the biometric sensor being configured to detect a biometric feature of a patient,
a signal transmitter configured to transmit data related to the detected biometric feature to a medical treatment machine for carrying out a medical treatment on the patient, wherein the wetness detection device is configured to be secured to the patient during the medical treatment,
a flexible base comprising an inner surface configured to be disposed over a venous access site or an arterial access site on the patient and flexibly conform to the skin of the patient;
a first electrical conductor and a second electrical conductor coupled to the flexible base, wherein the wetness detection device is configured to detect a blood leak from the venous access site or the arterial access site of the patient based on an amount of electrical resistance between the first electrical conductor and the second electrical conductor; and
a separation plate positioned between the flexible base and the housing, the separation plate configured to separate one or more electronics of the biometric sensor from the first electrical conductor and the second electrical conductor.