US 12,239,777 B2
Thrombectomy systems and methods for controlled clot aspiration
Bo-Yu Su, Alameda, CA (US); Vinita Verma, Pleasanton, CA (US); Scott Teigen, West Fargo, ND (US); Steven Loisel, Castro Valley, CA (US); Stephen Pons, Alameda, CA (US); and Ben Tompkins, Danville, CA (US)
Assigned to Penumbra, Inc., Alameda, CA (US)
Filed by Penumbra, Inc., Alameda, CA (US)
Filed on May 8, 2024, as Appl. No. 18/658,292.
Application 18/658,292 is a continuation in part of application No. 18/492,674, filed on Oct. 23, 2023.
Application 18/658,292 is a continuation in part of application No. 18/469,445, filed on Sep. 18, 2023.
Application 18/492,674 is a continuation of application No. 17/463,939, filed on Sep. 1, 2021, granted, now 11,793,542, issued on Oct. 24, 2023.
Application 18/469,445 is a continuation of application No. 16/977,431, granted, now 11,759,219, issued on Sep. 19, 2023, previously published as PCT/US2019/043095, filed on Jul. 23, 2019.
Claims priority of provisional application 62/778,708, filed on Dec. 12, 2018.
Claims priority of provisional application 62/702,804, filed on Jul. 24, 2018.
Prior Publication US 2024/0285846 A1, Aug. 29, 2024
Int. Cl. A61B 17/3207 (2006.01); A61M 1/00 (2006.01); A61B 17/00 (2006.01); A61B 17/3203 (2006.01); A61B 90/00 (2016.01); A61M 39/10 (2006.01)
CPC A61M 1/75 (2021.05) [A61M 1/76 (2021.05); A61M 1/77 (2021.05); A61M 1/774 (2021.05); A61B 17/00 (2013.01); A61B 2017/00022 (2013.01); A61B 2017/00075 (2013.01); A61B 2017/00123 (2013.01); A61B 2017/00561 (2013.01); A61B 17/32037 (2013.01); A61B 2017/320775 (2013.01); A61B 90/06 (2016.02); A61B 2090/064 (2016.02); A61B 2217/005 (2013.01); A61M 39/105 (2013.01); A61M 2205/3334 (2013.01); A61M 2205/3344 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A thrombectomy system, comprising:
a catheter having a proximal end and a distal end, wherein the catheter comprises a lumen configured to accommodate fluid;
a first valve, wherein the first valve is in fluid communication with the catheter, and wherein the first valve is configured to operate in a plurality of operating modes, wherein one or more of the operating modes is configured to alter a level of pressure in the catheter;
a cutting instrument at the distal end of the catheter, wherein the cutting instrument is configured for one or more motions comprising one or more of axial motion and rotational motion;
a first sensor associated with the cutting instrument; and
a controller configured to:
detect, via the first sensor, one or more operational parameters associated with the cutting instrument;
determine, based on one or more of the detected operational parameters associated with the cutting instrument at the distal end of the catheter, a current flow state indicating whether the distal end of the catheter is engaging with occlusive material, wherein the current flow state is determined via a machine learning algorithm trained on training data to predict one or more flow states associated with the catheter based on one or more of the operational parameters associated with the cutting instrument at the distal end of the catheter;
operate, based on a determination that the current flow state indicates that the distal end of the catheter is engaging with the occlusive material, the first valve in a first operating mode of the plurality of operating modes to alter the level of pressure in the catheter, and
operate, based on a determination that the current flow state indicates that the distal end of the catheter is not engaging with the occlusive material, the first valve in a second operating mode of the plurality of operating modes.