	US 12,303,304 B2
	Electrode disconnect detection
Siddhi Tavildar, San Diego, CA (US); Sean O'Connor, San Diego, CA (US); and Dmitry Novikov, San Diego, CA (US)
Assigned to NuVasive, Inc., San Diego, CA (US)
Filed by NuVasive, Inc., San Diego, CA (US)
Filed on Jun. 16, 2023, as Appl. No. 18/336,742.
Application 18/336,742 is a continuation of application No. 17/488,673, filed on Sep. 29, 2021.
Prior Publication US 2023/0414182 A1, Dec. 28, 2023
Int. Cl. A61B 5/00 (2006.01); A61B 5/257 (2021.01); A61B 5/296 (2021.01); A61B 5/395 (2021.01); G08B 5/22 (2006.01); G08B 21/18 (2006.01)

CPC A61B 5/746 (2013.01) [A61B 5/257 (2021.01); A61B 5/296 (2021.01); A61B 5/395 (2021.01); A61B 5/7221 (2013.01); G08B 5/22 (2013.01); G08B 21/18 (2013.01)]

20 Claims

1. A method for detecting whether an electrode is connected, comprising:

storing a noise signal, the noise signal being a recording of a channel taken before an electrode is connected to the channel;

during a surgical procedure, obtaining an electrode signal from the channel;

performing a comparison on the electrode signal and the noise signal to generate an amount of linear correlation of the noise signal and the electrode signal;

determining if the amount of linear correlation satisfies a predetermined threshold; and

responsive to determining the amount of linear correlation satisfies the predetermined threshold, determining the electrode signal is disconnected from a patient and providing an alert that the electrode is disconnected from the patient.