US 11,857,209 B2
Devices and methods for treating blocked blood vessels
Jerome Choe, Los Angeles, CA (US); and Earl Bardsley, San Clemente, CA (US)
Assigned to SHANGHAI WALLABY MEDICAL TECHNOLOGIES CO., INC., Shanghai (CN)
Appl. No. 16/963,898
Filed by SHANGHAI WALLABY MEDICAL TECHNOLOGIES CO., INC., Shanghai (CN)
PCT Filed Jan. 28, 2019, PCT No. PCT/US2019/015483
§ 371(c)(1), (2) Date Jul. 22, 2020,
PCT Pub. No. WO2019/152328, PCT Pub. Date Aug. 8, 2019.
Claims priority of provisional application 62/624,062, filed on Jan. 30, 2018.
Prior Publication US 2021/0045761 A1, Feb. 18, 2021
Int. Cl. A61B 17/221 (2006.01); A61B 17/22 (2006.01)
CPC A61B 17/22012 (2013.01) [A61B 17/221 (2013.01); A61B 2017/22038 (2013.01); A61B 2017/22084 (2013.01)] 9 Claims
OG exemplary drawing
 
1. An embolic capture device comprising:
an elongated stent body having a distal end, a proximal end, an axial lumen extending from the distal end to the proximal end, and a luminal surface;
at least two connecting struts at the proximal end of the stent body joined together with a distal end of a pusher shaft;
wherein the luminal surface of the elongated stent body has a plurality of cells; and each cell of the plurality of cells has a distal end, a proximal end, and a cell axis extending through both distal and proximal ends;
wherein a first circumferential row of cells of the plurality of cells along the luminal surface of the elongated stent body have a first cell axis forming a first angle with a longitudinal axis of the stent body, and a second circumferential row of cells of the plurality of cells adjacent to the first circumferential row of cells having a second cell axis forming a second angle with the longitudinal axis of the elongated stent body; and the first and the second angles are different; and
wherein the embolic capture device has a radially collapsed profile during delivery and a radially expanded profile upon deployment, and
wherein as the device resumes its radially expanded profile, the first
circumferential row of cells rotates around the longitudinal axis of the stent body in a first direction, and the second circumferential row of cells rotates around the longitudinal axis of the stent body in an opposite direction, wherein one of the first direction and the opposite direction is clockwise.