	US 12,274,637 B2
	Method of detecting leakage in medical devices
Scott E. Liddle, Raleigh, NC (US); and Lauren M. Lattanzi, Raleigh, NC (US)
Assigned to HOLLISTER INCORPORATED, Libertyville, IL (US)
Filed by Hollister Incorporated, Libertyville, IL (US)
Filed on Feb. 1, 2024, as Appl. No. 18/429,962.
Application 18/429,962 is a continuation of application No. 18/259,371, granted, now 11,896,512, previously published as PCT/US2022/011139, filed on Jan. 4, 2022.
Claims priority of provisional application 63/139,042, filed on Jan. 19, 2021.
Prior Publication US 2024/0164934 A1, May 23, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. A61F 5/443 (2006.01); A61F 5/44 (2006.01); G01M 3/16 (2006.01); G08B 21/00 (2006.01); G08B 21/18 (2006.01)

CPC A61F 5/4404 (2013.01) [A61F 5/443 (2013.01); G01M 3/16 (2013.01); G08B 21/182 (2013.01)]

20 Claims

1. A method of detecting leakage in a medical device, the method comprising the steps of:

accumulating a plurality of resistance measurements measured by a sensor, wherein the sensor is configured to measure a resistance of the medical device;

calculating a median resistance value of the plurality of resistance measurements;

incrementing a leak count associated with the sensor if the median resistance value is less than a predetermined threshold value;

determining the sensor is in a leak state if the leak count exceeds a predetermined acceptable leak count, wherein the predetermined acceptable leak count is at least two; and

generating an alert associate with leakage if the sensor is in the leak state.