公开(公告)号：US10980480B2

公开(公告)日：2021-04-20

申请号：US16363159

申请日：2019-03-25

Applicant: CeriBell, Inc.

Inventor： Alexander M. Grant ,  Jianchun Yi ,  Bradley G. Bachelder ,  Raymond Woo ,  Josef Parvizi ,  Xingjuan Chao

IPC: A61B5/04 ,  A61B5/0476 ,  A61B5/00 ,  A61B5/042 ,  A61N1/37 ,  A61N1/02 ,  A61N1/36 ,  A61B5/0478 ,  A61B5/0492 ,  A61N1/04 ,  A61N1/05

Abstract: Systems, devices, and methods are provided to assess connection quality between the electrodes of a bioelectrical signal measurement and/or electrical stimulation device and the tissue, typically skin, of the subject. A test signal is provided to a first electrode, voltage differences between the first electrode and additional electrodes are determined, an impedance of the first electrode is determined based on the voltages differences, and the determined impedance indicates connection quality. This process is typically repeated for all of the electrodes to determine connection quality. The user or subject can be alerted if the connection quality is poor, and the bioelectrical signal that is recorded can be provided with data points indicating connection quality during the signal recording.

公开(公告)号：US10849553B2

公开(公告)日：2020-12-01

申请号：US16367040

申请日：2019-03-27

Applicant: CeriBell, Inc.

Inventor： Alexander Grant ,  Chris Chafe ,  Josef Parvizi ,  Jianchun Yi ,  Raymond Woo ,  Xingjuan Chao

IPC: A61B5/04 ,  A61B5/00 ,  A61B5/0402 ,  G10L25/51 ,  A61B5/0488 ,  A61B5/0496 ,  H04R3/04 ,  A61B5/0476

Abstract: Systems and methods for sonifying electrical signals obtained from a living subject, particularly EEG signals, are disclosed. A time-domain signal representing the activity of an organ is obtained. A voltage of the time-domain signal over a time block is determined. An acoustic signal based on the time-domain signal over the time block is produced. The acoustic signal comprises one or more audibly discernible variations representative of the activity of the organ. If the determined voltage is over a threshold voltage, the time-domain signal is squelched over at least a portion of the time-block as the acoustic signal is produced. The time-domain signal can be squelched by ramping down the signal as an input to produce the acoustic signal. The frequency spectrum of the acoustic signal can also be adjusted as it is produced, such as by flattening the signal and/or attenuating high frequencies along the frequency spectrum of the signal.

公开(公告)号：US20180049661A1

公开(公告)日：2018-02-22

申请号：US15783346

申请日：2017-10-13

Applicant: CeriBell, Inc.

Inventor： Josef Parvizi ,  Xingjuan Chao ,  Bradley G. Bachelder ,  Raymond Woo ,  Mathew A. Herron ,  Vahid Saadatt ,  Alexander M. Grant ,  Jianchum Yi

IPC: A61B5/0478 ,  A61B5/0402 ,  A61B5/00

CPC classification number: A61B5/0478 ,  A61B5/04025 ,  A61B5/04026 ,  A61B5/6803 ,  A61B5/721 ,  A61B2562/043 ,  A61B2562/14 ,  A61B2562/164

Abstract: An electrode carrier system includes one or more electrode assemblies having an electrode body. One or more tubular members extend from the electrode body and define a lumen terminating in a distal opening. The electrode assemblies carry a reservoir containing a conductive fluid or gel. The reservoir is in fluid communication with the lumens in the tubular members, and the electrode assemblies are typically supported on a backing which may optionally be configured as a headband. Systems are for tracking patient movement may be used in combination with the electrode carrier system.

公开(公告)号：US20210128044A1

公开(公告)日：2021-05-06

申请号：US17089586

申请日：2020-11-04

Applicant: CeriBell, Inc.

Inventor： Josef Parvizi ,  Xingjuan Chao ,  Bradley G. Bachelder ,  Raymond Woo ,  Mathew A. Herron ,  Vahid Saadat ,  Alexander M. Grant ,  Jianchun Yi

IPC: A61B5/291 ,  A61B5/324 ,  A61B5/325 ,  A61B5/00

Abstract: An electrode carrier system includes one or more electrode assemblies having an electrode body. One or more tubular members extend from the electrode body and define a lumen terminating in a distal opening. The electrode assemblies carry a reservoir containing a conductive fluid or gel. The reservoir is in fluid communication with the lumens in the tubular members, and the electrode assemblies are typically supported on a backing which may optionally be configured as a headband. Systems are for tracking patient movement may be used in combination with the electrode carrier system.

公开(公告)号：US10888240B2

公开(公告)日：2021-01-12

申请号：US15783346

申请日：2017-10-13

Applicant: CeriBell, Inc.

Inventor： Josef Parvizi ,  Xingjuan Chao ,  Bradley G. Bachelder ,  Raymond Woo ,  Mathew A. Herron ,  Vahid Saadat ,  Alexander M. Grant ,  Jianchun Yi

IPC: A61B5/0478 ,  A61B5/0402 ,  A61B5/00

Abstract: An electrode carrier system includes one or more electrode assemblies having an electrode body. One or more tubular members extend from the electrode body and define a lumen terminating in a distal opening. The electrode assemblies carry a reservoir containing a conductive fluid or gel. The reservoir is in fluid communication with the lumens in the tubular members, and the electrode assemblies are typically supported on a backing which may optionally be configured as a headband. Systems are for tracking patient movement may be used in combination with the electrode carrier system.

公开(公告)号：US12150769B2

公开(公告)日：2024-11-26

申请号：US17089586

申请日：2020-11-04

Applicant: Ceribell, Inc.

Inventor： Josef Parvizi ,  Xingjuan Chao ,  Bradley G. Bachelder ,  Raymond Woo ,  Mathew A. Herron ,  Vahid Saadat ,  Alexander M. Grant ,  Jianchun Yi

IPC: A61B5/291 ,  A61B5/00 ,  A61B5/324 ,  A61B5/325

Abstract: An electrode carrier system includes one or more electrode assemblies having an electrode body. One or more tubular members extend from the electrode body and define a lumen terminating in a distal opening. The electrode assemblies carry a reservoir containing a conductive fluid or gel. The reservoir is in fluid communication with the lumens in the tubular members, and the electrode assemblies are typically supported on a backing which may optionally be configured as a headband. Systems are for tracking patient movement may be used in combination with the electrode carrier system.

公开(公告)号：US20210085235A1

公开(公告)日：2021-03-25

申请号：US16923689

申请日：2020-07-08

Applicant: CeriBell, Inc.

Inventor： Baharan Kamousi ,  Mehdi Hajinoroozi ,  Suganya Karunakaran ,  Alexander M. Grant ,  Jianchun Yi ,  Raymond Woo ,  Josef Parvizi ,  Xingjuan Chao

IPC: A61B5/00 ,  A61B5/0476 ,  G06F9/54 ,  G06N20/00

Abstract: The present disclosure provides systems and methods for seizure detection. The method for seizure detection may include receiving a plurality of electroencephalography (EEG) signals over a plurality of channels for a subject, preprocessing the plurality of EEG signals by segmenting the plurality of EEG signals for each channel into a plurality of temporal data segments, extracting a plurality of features from each temporal data segment for each channel, and applying a machine learning algorithm to the plurality of features to perform a seizure binary classification for each temporal data segment for each channel. A control policy may be employed to determine a seizure burden on the aggregated seizure binary classifications. When the seizure burden is equal to or exceeds a threshold, a notification may be generated. The notification may be usable by a healthcare practitioner to assess whether the subject may be at risk of having a seizure.

公开(公告)号：US20230225665A1

公开(公告)日：2023-07-20

申请号：US18153986

申请日：2023-01-12

Applicant: Ceribell, Inc.

Inventor： Baharan KAMOUSI ,  Suganya Karunakaran ,  Archit Gupta ,  Raymond Woo ,  Xingjuan Chao

IPC: A61B5/372 ,  G16H10/60 ,  G16H50/20 ,  A61B5/31 ,  A61B5/384 ,  A61B5/00

CPC classification number: A61B5/372 ,  G16H10/60 ,  G16H50/20 ,  A61B5/31 ,  A61B5/384 ,  A61B5/6803

Abstract: Described herein are systems and methods for the detection and monitoring of delirium in a subject. Other neurological conditions may also be detected and monitored. The systems may include a data module configured to obtain a plurality of electroencephalography (EEG) signals collected from a subject. The systems may also include a processing module in communication with the data module. The processing module may be configured to process the data to detect and monitor delirium and/or one or more other neurological conditions that the subject is experiencing or likely to experience. The processing module may also generate indications or assessments for delirium and/or for each neurological condition at an individual level, or optionally, between two or more related neurological conditions.

公开(公告)号：US10285646B1

公开(公告)日：2019-05-14

申请号：US15906375

申请日：2018-02-27

Applicant: CeriBell, Inc.

Inventor： Alexander M. Grant ,  Jianchun Yi ,  Bradley G. Bachelder ,  Raymond Woo ,  Josef Parvizi ,  Xingjuan Chao

IPC: A61B5/04 ,  A61B5/0476 ,  A61B5/00 ,  A61B5/0478 ,  A61B5/0492 ,  A61B5/042 ,  A61N1/04 ,  A61N1/05 ,  A61N1/36 ,  A61N1/37 ,  A61N1/02

Abstract: Systems, devices, and methods are provided to assess connection quality between the electrodes of a bioelectrical signal measurement and/or electrical stimulation device and the tissue, typically skin, of the subject. A test signal is provided to a first electrode, voltage differences between the first electrode and additional electrodes are determined, an impedance of the first electrode is determined based on the voltages differences, and the determined impedance indicates connection quality. This process is typically repeated for all of the electrodes to determine connection quality. The user or subject can be alerted if the connection quality is poor, and the bioelectrical signal that is recorded can be provided with data points indicating connection quality during the signal recording.

公开(公告)号：US10743809B1

公开(公告)日：2020-08-18

申请号：US16578032

申请日：2019-09-20

Applicant: CeriBell, Inc.

Inventor： Baharan Kamousi ,  Mehdi Hajinoroozi ,  Suganya Karunakaran ,  Alexander Grant ,  Jianchun Yi ,  Raymond Woo ,  Josef Parvizi ,  Xingjuan Chao

IPC: A61B5/00 ,  A61B5/0476 ,  G06F9/54 ,  G06N20/00

Abstract: The present disclosure provides systems and methods for seizure detection. The method for seizure detection may include receiving a plurality of electroencephalography (EEG) signals over a plurality of channels for a subject, preprocessing the plurality of EEG signals by segmenting the plurality of EEG signals for each channel into a plurality of temporal data segments, extracting a plurality of features from each temporal data segment for each channel, and applying a machine learning algorithm to the plurality of features to perform a seizure binary classification for each temporal data segment for each channel. A control policy may be employed to determine a seizure burden on the aggregated seizure binary classifications. When the seizure burden is equal to or exceeds a threshold, a notification may be generated. The notification may be usable by a healthcare practitioner to assess whether the subject may be at risk of having a seizure.