US 12,433,617 B2
Aspiration thrombectomy system and methods for thrombus removal with aspiration catheter
Derek Dee Deville, Coral Gables, FL (US); Matthew A. Palmer, Miami, FL (US); William T. Bales, Miami, FL (US); M. Sean McBrayer, Coral Gables, FL (US); Eric Petersen, Homestead, FL (US); Richard Cartledge, Boca Raton, FL (US); Thomas O. Bales, Jr., Miami, FL (US); and Carlos Rivera, Cooper City, FL (US)
Assigned to RapidPulse, Inc., Miami, FL (US)
Filed by RapidPulse, Inc., Miami, FL (US)
Filed on Jun. 30, 2023, as Appl. No. 18/346,008.
Application 18/346,008 is a continuation of application No. 16/899,514, filed on Jun. 11, 2020, granted, now 12,059,161.
Application 16/899,514 is a continuation of application No. 16/681,564, filed on Nov. 12, 2019, granted, now 10,722,253, issued on Jul. 28, 2020.
Application 16/899,514 is a continuation of application No. PCT/US2019/042546, filed on Jul. 19, 2019.
Application 16/681,564 is a continuation of application No. 16/516,232, filed on Jul. 18, 2019, granted, now 10,531,883, issued on Jan. 14, 2020.
Claims priority of provisional application 62/750,011, filed on Oct. 24, 2018.
Claims priority of provisional application 62/701,086, filed on Jul. 20, 2018.
Prior Publication US 2024/0000466 A1, Jan. 4, 2024
Int. Cl. A61B 17/22 (2006.01); A61B 17/34 (2006.01); A61F 2/01 (2006.01); A61M 25/00 (2006.01); A61B 17/00 (2006.01)
CPC A61B 17/22 (2013.01) [A61F 2/013 (2013.01); A61M 25/0075 (2013.01); A61B 2017/00022 (2013.01); A61B 2017/00154 (2013.01); A61B 2017/22079 (2013.01); A61B 2017/22082 (2013.01); A61B 2217/007 (2013.01); A61F 2/011 (2020.05)] 7 Claims
OG exemplary drawing
 
1. A method for removing thromboembolic material, comprising:
positioning the distal end of a catheter at least proximate to thromboembolic material in a blood vessel of a person, wherein the catheter has a proximal portion, a distal end and a lumen extending from the proximal portion to the distal end;
providing a vent liquid at a pressure from above atmospheric pressure to approximately equal to body pressure of a human; and
controlling a vacuum valve fluidically coupled to a vacuum source and the catheter and a vent valve fluidically coupled to the vent liquid and the catheter according to a first predetermined sequence at a first frequency at approximately 6 Hz to approximately 16 Hz and a second predetermined sequence at a second frequency at approximately 6 Hz to 16 Hz, wherein
(a) the first frequency is different than the second frequency,
(b) the first predetermined sequence and the second predetermined sequence each have a vacuum-only state in which the vacuum valve is open and the vent valve is closed, a first off-off state following the vacuum-only state in which both the vacuum valve and the vent valve are closed, a vent-only state in which the vent valve is open and the vacuum valve is closed, and a second off-off state after the vent-only state in which both the vacuum valve and the vent valve are closed,
(c) the first off-off state lasts a predetermined period of time from 5.2 ms to 13.9 ms, and
(d) the second off-off state lasts a predetermined period of time.