US 11,806,033 B2
Devices and methods for treating vascular occlusion
Phil Marchand, Lake Forest, CA (US); Benjamin E. Merritt, San Clemente, CA (US); John C. Thress, Capistrano Beach, CA (US); Jacob F. Louw, Carlsbad, CA (US); Paul Lubock, Monarch Beach, CA (US); and Brian J. Cox, Laguna Nigel, CA (US)
Assigned to Inari Medical, Inc., Irvine, CA (US)
Filed by Inari Medical, Inc., Irvine, CA (US)
Filed on Jan. 21, 2021, as Appl. No. 17/154,806.
Application 17/154,806 is a continuation of application No. 16/160,920, filed on Oct. 15, 2018, granted, now 10,912,577.
Application 16/160,920 is a continuation of application No. 15/498,320, filed on Apr. 26, 2017, granted, now 10,098,651, issued on Oct. 16, 2018.
Claims priority of provisional application 62/444,705, filed on Jan. 10, 2017.
Prior Publication US 2021/0236148 A1, Aug. 5, 2021
Int. Cl. A61B 17/221 (2006.01); A61F 2/01 (2006.01); A61B 17/3207 (2006.01); A61B 17/22 (2006.01)
CPC A61B 17/221 (2013.01) [A61B 17/320725 (2013.01); A61F 2/013 (2013.01); A61B 2017/2212 (2013.01); A61B 2017/2215 (2013.01); A61B 2017/22094 (2013.01); A61F 2/011 (2020.05); A61F 2002/016 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A method for removal of a vascular thrombus from a blood vessel of a patient, the method comprising:
positioning a thrombus extraction device at least partially distal to the thrombus in the blood vessel, wherein the thrombus extraction device includes an expandable coring element and an expandable cylindrical structure, and wherein a proximal portion of the cylindrical structure is coupled to a distal portion of the coring element;
expanding the coring element by proximally retracting a first shaft of the thrombus extraction device relative to a second shaft of the thrombus extraction device such that a stop feature on the first shaft engages a portion of the coring element, wherein a proximal portion of the coring element is coupled to the second shaft, and wherein the first shaft is slidably positioned within the second shalt; and
retracting the thrombus extraction device at least partially through the thrombus such that (a) the coring element separates a portion of the thrombus from a wall of the blood vessel and (b) the cylindrical structure captures the portion of the thrombus.