US 12,485,256 B2
Systems and methods for endovascularly accessing a subarachnoid space
Adel M. Malek, Weston, MA (US); Carl Heilman, Wayland, MA (US); David A. Rezac, Westborough, MA (US); Jack B. Sattell, Boston, MA (US); and Anthony Maiorano, Jamaica Plain, MA (US)
Assigned to Cerevasc, Inc., Auburndale, MA (US)
Filed by CEREVASC, INC., Auburndale, MA (US)
Filed on Mar. 30, 2023, as Appl. No. 18/192,948.
Application 18/192,948 is a continuation of application No. 16/986,245, filed on Aug. 5, 2020, granted, now 11,951,270.
Application 16/986,245 is a continuation of application No. 15/981,497, filed on May 16, 2018, granted, now 10,758,718, issued on Sep. 1, 2020.
Application 15/981,497 is a continuation of application No. 15/745,961, granted, now 10,272,230, issued on Apr. 30, 2019, previously published as PCT/US2016/059592, filed on Oct. 28, 2016.
Claims priority of provisional application 62/406,825, filed on Oct. 11, 2016.
Claims priority of provisional application 62/332,444, filed on May 5, 2016.
Claims priority of provisional application 62/301,523, filed on Feb. 29, 2016.
Claims priority of provisional application 62/290,384, filed on Feb. 2, 2016.
Claims priority of provisional application 62/249,145, filed on Oct. 30, 2015.
Prior Publication US 2023/0233820 A1, Jul. 27, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. A61M 27/00 (2006.01); A61M 25/04 (2006.01); A61B 17/00 (2006.01); A61B 17/22 (2006.01); A61B 17/34 (2006.01); A61F 2/915 (2013.01); A61M 25/01 (2006.01); A61M 25/06 (2006.01); A61M 25/09 (2006.01)
CPC A61M 27/006 (2013.01) [A61M 25/04 (2013.01); A61B 2017/00252 (2013.01); A61B 2017/22077 (2013.01); A61B 17/3478 (2013.01); A61F 2/915 (2013.01); A61M 25/0147 (2013.01); A61M 25/065 (2013.01); A61M 25/09 (2013.01); A61M 2202/0464 (2013.01); A61M 2205/32 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A system for endovascularly accessing a subarachnoid space (SAS) in a patient, the system comprising:
an expandable anchor configured for being deployed in a dural venous sinus of a patient at a location distal to a curved portion of a sinus wall of the patient;
an elongate guide member coupled to, and extending proximally from, the anchor;
an SAS access catheter comprising a first lumen extending between respective proximal and distal openings in the SAS access catheter, a penetrating element coupled to a distal end of the SAS access catheter; and
a guard at least partially disposed over, and movable relative to, the penetrating element, wherein the guard comprises a tubular guard body having a first guard body lumen or recess configured to receive the penetrating element, a second guard body lumen configured to accommodate passage therethrough of the guide member, and a pull wire having a distal portion attached to the guard body, wherein the pull wire is configured to translate the guard body proximally relative to the SAS access catheter so as to at least partially expose the penetrating element.