US 12,226,112 B1
Neurovascular clot retrieving system
Thanh Van Nguyen, Anaheim, CA (US); Rajan Hansji, Anaheim, CA (US); and Duy Nguyen, Anaheim, CA (US)
Assigned to Cerebrova KP Medical, Inc., Irvine, CA (US)
Filed by Cerebrova KP Medical, Inc., Irvine, CA (US)
Filed on Feb. 21, 2024, as Appl. No. 18/583,727.
Claims priority of provisional application 63/617,321, filed on Jan. 3, 2024.
Claims priority of provisional application 63/610,696, filed on Dec. 15, 2023.
Int. Cl. A61B 17/221 (2006.01); A61B 17/00 (2006.01)
CPC A61B 17/221 (2013.01) [A61B 2017/00778 (2013.01); A61B 2017/00862 (2013.01); A61B 2017/2212 (2013.01)] 26 Claims
OG exemplary drawing
 
1. A device for removing material from a patient, the device comprising:
a catheter shaft;
an extractor formed from one continuous wire, the extractor comprising a first array of engagement panels located at a first longitudinal location formed from the one continuous wire, wherein the first array of engagement panels extends radially outward from a first coiled eyelet formed from the one continuous wire, a second array of engagement panels located at a second longitudinal location formed from the one continuous wire, wherein the second array of engagement panels extends radially outward from a second coiled eyelet formed from the one continuous wire, and a third array of engagement panels located at a third longitudinal location formed from the one continuous wire, wherein the third array of engagement panels extends radially outward from a third coiled eyelet formed from the one continuous wire,
wherein the extractor comprises a connecting member formed from the one continuous wire, wherein the connecting member connects the first array of engagement panels, the second array of engagement panels, and the third array of engagement panels; and
wherein the extractor comprises a collapsed state for delivery and an expanded state within a blood vessel,
wherein in the expanded state, at least a portion of the extractor is deployed such that the first array of engagement panels is positioned distal to a thrombus and the second array of engagement panels is positioned within the thrombus or proximal to the thrombus,
wherein the connecting member between the first array of engagement panels, the second array of engagement panels, and the third array of engagement panels pulls the first array of engagement panels, the second array of engagement panels, and the third array of engagement panels together thereby creating a pinching effect to hold the thrombus,
wherein in the expanded state the first array of engagement panels, the second array of engagement panels, and the third array of engagement panels are configured to engage the thrombus between the first array of engagement panels located at the first longitudinal location, the second array of engagement panels located at the second longitudinal location, and the third array of engagement panels located at the third longitudinal location.