US 12,121,250 B1
Computer-aided vacuum thrombectomy systems and methods for controlled clot aspiration
Nicole Trosper, Fairfax, CA (US); and Stephen Pons, Alameda, CA (US)
Assigned to Penumbra, Inc., Alameda, CA (US)
Filed by Penumbra, Inc., Alameda, CA (US)
Filed on Jun. 21, 2024, as Appl. No. 18/750,607.
Application 18/750,607 is a continuation in part of application No. 18/492,674, filed on Oct. 23, 2023.
Application 18/750,607 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.
Int. Cl. A61B 17/3207 (2006.01); A61B 17/22 (2006.01); A61M 1/00 (2006.01); A61B 17/00 (2006.01); A61B 17/3203 (2006.01); A61B 17/34 (2006.01); A61B 90/00 (2016.01); A61M 39/10 (2006.01)
CPC A61B 17/22 (2013.01) [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 2017/00561 (2013.01); A61B 17/32037 (2013.01); A61B 17/3498 (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. An aspiration thrombectomy system, comprising:
an aspiration catheter having a proximal end and a distal end, wherein the aspiration catheter is configured to accommodate fluid, and wherein the distal end is configured to interface with occlusive material in a vasculature of a patient;
connection tubing coupled to the aspiration catheter, wherein the connection tubing is configured to act as a common conduit for fluid communication between the aspiration catheter and a vacuum source;
one or more controllable valves, wherein each valve is operable to selectively open and close to control a level of pressure in the aspiration catheter;
one or more pressure sensors, wherein each pressure sensor is positioned downstream from the distal end of the aspiration catheter; and
a controller configured to, during operation of the aspiration thrombectomy system:
detect, via one or more of the pressure sensors, a set of pressure levels associated with one or more positions associated with one or more of the pressure sensors, the aspiration catheter, or the connection tubing;
identify, based on one or more filtering criteria, one or more subsets of pressure levels from the set of detected pressure levels, wherein the one or more subsets of pressure levels are associated with one or more periods of time when the aspiration thrombectomy system is in an open flow state;
determine, based on one or more of the identified subsets of pressure levels, a vascular pressure level associated with one or more positions in the vasculature of the patient; and
transmit, to a display associated with the aspiration thrombectomy system, a representation of the vascular pressure level configured to be visually presented on the display.