Wenwen Li resumes & CV records
Resumes
Wenwen Li
Wenwen Li
Location:
United States
Wenwen Li, 36Tracy, CA
Wenwen Li Phones & Addresses
Tracy, CA
Union City, CA
Mountain View, CA
Pomona, CA
Hacienda Heights, CA
Hacienda Heights, CA
Mentions for Wenwen Li
Publications & IP owners
Us Patents
Method And System For Optimizing Filter Settings Of An Implantable Medical Device
US Patent:
2022040, Dec 29, 2022
Filed:
Apr 14, 2022
Appl. No.:
17/720748
Inventors:
- Sylmar CA, US
Fady Dawoud - Studio City CA, US
Wenwen Li - San Jose CA, US
Chaoyi Kang - Northridge CA, US
Fady Dawoud - Studio City CA, US
Wenwen Li - San Jose CA, US
Chaoyi Kang - Northridge CA, US
International Classification:
A61B 5/00
A61B 5/318
A61B 5/318
Abstract:
A system and a method include an implantable medical device (IMD) having one or more inputs configured to receive one or more sensed signals from one or more electrodes. A plurality of filters are configured to filter the one or more sensed signals and output a plurality of filtered signals. Memory is configured to store program instructions. A processor, when executing the program instructions, is configured to receive the plurality of filtered signals, and analyze the plurality of filtered signals to determine a desired one of the plurality of filters.
Methods And Systems For Determining Whether R-Wave Detections Should Be Classified As False Due To T-Wave Oversensing (Two) Or P-Wave Oversensing (Pwo)
US Patent:
2022040, Dec 22, 2022
Filed:
Apr 18, 2022
Appl. No.:
17/723207
Inventors:
- Sylmar CA, US
Wenwen Li - Studio City CA, US
Fujian Qu - San Jose CA, US
Jong Gill - Valencia CA, US
Wenwen Li - Studio City CA, US
Fujian Qu - San Jose CA, US
Jong Gill - Valencia CA, US
Assignee:
Pacesetter, Inc. - Sylmar CA
International Classification:
A61B 5/00
A61B 5/352
A61B 5/353
A61B 5/355
A61B 5/352
A61B 5/353
A61B 5/355
Abstract:
Described herein are methods, devices and system for determining whether an R-wave detection should be classified as a false R-wave detection due to T-wave oversensing (TWO) or P-wave oversensing (PWO). One such method includes comparing a specific morphological characteristic (e.g., peak amplitude) associated with the R-wave detection to the specific morphological characteristic associated with each R-wave detection in a first set of earlier detected R-wave detections to thereby determine whether first TWO or PWO morphological criteria are met, and in a second set of earlier detected R-wave detections to thereby determine whether second TWO or PWO morphological criteria are met, wherein the second set differs from the first set but may have some overlap with the first set. The method also includes determining whether to classify the R-wave detection as a false R-wave detection, based on whether one of the first or second TWO or PWO morphological criteria are met.
Methods And Systems For Analyzing Electrocardiogram (Ecg) Signals
US Patent:
2022038, Dec 8, 2022
Filed:
Apr 1, 2022
Appl. No.:
17/711735
Inventors:
- Sylmar CA, US
Dean P. Andersen - San Jose CA, US
Wenwen Li - San Jose CA, US
Yun Qiao - Sunnyvale CA, US
Dean P. Andersen - San Jose CA, US
Wenwen Li - San Jose CA, US
Yun Qiao - Sunnyvale CA, US
International Classification:
A61B 5/308
A61B 5/352
A61B 5/355
A61B 5/353
A61B 5/283
A61B 5/352
A61B 5/355
A61B 5/353
A61B 5/283
Abstract:
A computer implemented system and method include one or more processors configured to receive a plurality of electrocardiogram (ECG) signals from one or more subcutaneous implantable medical devices (IMDs) and combine at least two of the plurality of ECG signals to form a first composite ECG signal.
Device And Method For Detecting Ventricular Arrhythmias Based On Duty Cycle Characteristics
US Patent:
2022035, Nov 10, 2022
Filed:
Apr 10, 2022
Appl. No.:
17/717103
Inventors:
- Sylmar CA, US
Yun Qiao - Sunnyvale CA, US
Wenwen Li - San Jose CA, US
Kevin J. Davis - Thousand Oaks CA, US
Chaoyi Kang - Sylmar CA, US
Yun Qiao - Sunnyvale CA, US
Wenwen Li - San Jose CA, US
Kevin J. Davis - Thousand Oaks CA, US
Chaoyi Kang - Sylmar CA, US
International Classification:
A61B 5/352
A61B 5/308
A61B 5/283
A61B 5/308
A61B 5/283
Abstract:
A computer implemented method and system for detecting an arrhythmia are provided. The method is under control of one or more processors configured with executable instructions. The method obtains far field cardiac activity (CA) signals sensed at electrodes located remote from a heart over a period of time and applies a feature attenuation filter to the CA signals to form modified CA signals. The feature attenuation filter reduces potential T-waves as a feature not of interest. The method calculates a duty cycle (DC) characteristic of the modified CA signals with respect to duty cycle boundaries and detects an arrhythmia based on the DC characteristic.
Implantable Medical Systems And Methods Used To Detect, Characterize Or Avoid Atrial Oversensing Within A His Iegm
US Patent:
2022024, Aug 11, 2022
Filed:
Feb 9, 2021
Appl. No.:
17/171762
Inventors:
- Sylmar CA, US
Wenwen Li - Studio City CA, US
Jan Mangual - Rho (MI), IT
Luke C. McSpadden - Studio City CA, US
Wenwen Li - Studio City CA, US
Jan Mangual - Rho (MI), IT
Luke C. McSpadden - Studio City CA, US
Assignee:
Pacesetter, Inc. - Sylmar CA
International Classification:
A61N 1/37
A61B 5/33
A61B 5/283
A61N 1/05
A61N 1/368
A61B 5/33
A61B 5/283
A61N 1/05
A61N 1/368
Abstract:
Certain embodiments of the present technology described herein relate to detecting atrial oversensing in a His intracardiac electrogram (His IEGM), characterizing atrial oversensing, determining when atrial oversensing is likely to occur, and or reducing the chance of atrial oversensing occurring. Some such embodiments characterize and/or avoid atrial oversensing within a His IEGM. Other embodiments of the present technology described herein relate to determining whether atrial capture occurs in response to His bundle pacing (HBP). Still other embodiments of the present technology described herein relate to determining whether AV node capture occurs in response to HBP.
Implantable Medical Systems And Methods For Use Therewith That Detect Atrial Capture And Av Node Capture Responsive To His Bundle Pacing
US Patent:
2022024, Aug 11, 2022
Filed:
Feb 9, 2021
Appl. No.:
17/171773
Inventors:
- Sylmar CA, US
Wenwen Li - Studio City CA, US
Jan Mangual - Rho (MI), IT
Luke C. McSpadden - Studio City CA, US
Wenwen Li - Studio City CA, US
Jan Mangual - Rho (MI), IT
Luke C. McSpadden - Studio City CA, US
Assignee:
Pacesetter, Inc. - Sylmar CA
International Classification:
A61N 1/37
Abstract:
Certain embodiments of the present technology described herein relate to detecting atrial oversensing in a His intracardiac electrogram (His IEGM), characterizing atrial oversensing, determining when atrial oversensing is likely to occur, and or reducing the chance of atrial oversensing occurring. Some such embodiments characterize and/or avoid atrial oversensing within a His IEGM. Other embodiments of the present technology described herein relate to determining whether atrial capture occurs in response to His bundle pacing (HBP). Still other embodiments of the present technology described herein relate to determining whether AV node capture occurs in response to HBP.
Robust Ventricular Sensing Of Far-Field Egm Or Ecg Signals That Avoids Oversensing Of Ventricular Sensed Events
US Patent:
2023007, Mar 9, 2023
Filed:
May 16, 2022
Appl. No.:
17/745260
Inventors:
- Sylmar CA, US
Nima Badie - Oakland CA, US
Wenwen Li - Studio City CA, US
Chaoyi Kang - Northridge CA, US
Jan Mangual - Milan, IT
Fady Dawoud - Studio City CA, US
Nima Badie - Oakland CA, US
Wenwen Li - Studio City CA, US
Chaoyi Kang - Northridge CA, US
Jan Mangual - Milan, IT
Fady Dawoud - Studio City CA, US
Assignee:
Pacesetter, Inc. - Sylmar CA
International Classification:
A61B 5/352
A61B 5/0245
A61B 5/07
A61B 5/287
A61B 5/333
A61B 5/363
A61B 5/00
G16H 40/67
G16H 50/30
A61B 5/0245
A61B 5/07
A61B 5/287
A61B 5/333
A61B 5/363
A61B 5/00
G16H 40/67
G16H 50/30
Abstract:
Described herein are methods, devices, and systems that identify ventricular sensed (VS) events from a signal indicative of cardiac electrical activity, such a far-field EGM or ECG signal, and monitor for an arrythmia and/or perform arrythmia discrimination based on the VS events. Beneficially, such embodiments reduce the probability of double-counting of R-wave, or more generally, of oversensing VS events, and thereby provide for improved arrythmia detection and arrythmia discrimination.
Method And System For Implanting A Septal Wall Electrode
US Patent:
2023000, Jan 12, 2023
Filed:
Jul 6, 2021
Appl. No.:
17/367855
Inventors:
- Sylmar CA, US
Wenwen Li - Studio City CA, US
Yun Qiao - Sunnyvale CA, US
Kyungmoo Ryu - Palmdale CA, US
Wenwen Li - Studio City CA, US
Yun Qiao - Sunnyvale CA, US
Kyungmoo Ryu - Palmdale CA, US
International Classification:
A61N 1/37
A61N 1/375
A61N 1/05
A61N 1/375
A61N 1/05
Abstract:
A system is provided that includes a first electrode configured to be located within a septal wall, and a second electrode configured to be located outside of the septal wall. The system also includes an impedance circuit configured to measure impedance along an impedance monitoring (IM) vector between the first and second electrodes. One or more processors are also provided that are configured to obtain impedance data indicative of an impedance along the IM vector with the first electrode located at different depths within the septal wall, the impedance data including a set of data values associated with different depths of the first electrode within the septal wall. The one or more processors are also configured to determine when the first electrode is located at a target depth within the septal wall based on the impedance data.
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