US 11,951,270 B2 · Systems and methods for endovascularly accessing a subarachnoid space

Abstract

Systems and methods for implanting an endovascular shunt in a patient is disclosed. The system having 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 wall of an inferior petrosal sinus (IPS) of the patient; an elongate guide member coupled to, and extending proximally from, the anchor; a shunt delivery catheter having a first lumen configured to receive the guide member, and a second lumen extending between respective proximal and distal openings in the shunt delivery catheter, the shunt delivery catheter further having a penetrating element coupled to a distal end of the catheter; and the system further having a guard at least partially disposed over, and movable relative to, the penetrating element.

Claims17

Dependent claims

A method for endovascularly accessing a subarachnoid space (SAS) in a patient, the method comprising:

deploying an anchor in the patient at a location distal to a curved wall portion of a venous sinus adjacent a cerebrospinal fluid-filled SAS, wherein an elongate guide member extends proximally from the deployed anchor, through the venous sinus, and into a jugular vein (JV), respectively, of the patient;
advancing an SAS access catheter distally along, on, and/or within the guide member through the JV and toward the curved wall portion of the venous sinus;
retracting a guard body disposed over a penetrating element on a distal portion of the SAS access catheter to at least partially expose the penetrating element in the venous sinus;
and
further advancing the SAS access catheter toward and through a target penetration site in the curved wall portion of the venous sinus to create an anastomosis between the venous sinus and the SAS.

2 more elements

A method for implanting an endovascular shunt in a patient, the method comprising:

deploying an anchor in an inferior petrosal sinus (IPS) or cavernous sinus (CS) of the patient at a location distal to a curved wall portion of the IPS that separates the IPS from a cerebellopontine (CP) angle cistern of the patient, wherein an elongate guide member extends proximally from the deployed anchor, through the curved portion of the IPS, to or through a location proximate to, or proximal of, a junction of the IPS and a jugular vein (JV) of the patient;
and
advancing the shunt distally along, on, and/or within the guide member through the junction with the JV, into the IPS, and through a penetration site in the curved portion of the IPS wall, respectively, so that a distal portion of the shunt is disposed within the CP angle cistern, a body of the shunt is disposed within the IPS, and a proximal portion of the shunt is disposed within or proximate to the JV.

Dependencies are inferred from the claim text.

Facts

Application

16/986,245Filed 5 Aug 2020 · continuation

Priority

30 Oct 2015

Published

US 2020/0368506 A126 Nov 2020

Granted

9 Apr 2024

Term ends

Not estimatedThe source records don’t support an estimate.

Classification14 codes

A61M 27/006
Implant devices for drainage of body fluids from one part of the body to another: cerebrospinal drainage; Accessories therefor, e.g. valves
A61M 25/04
Holding devices, e.g. on the body: in the body, e.g. expansible
A61B 17/3478
Trocars; Puncturing needles: endoscopic needles, e.g. for infusion
A61B 2017/00252
Making holes in the wall of the heart, e.g. laser Myocardial revascularization: for by-pass connections, i.e. connections from heart chamber to…

Family

Application62/249,145Us provisional application · filed 30 Oct 2015

Application62/290,384Us provisional application · filed 2 Feb 2016

Application62/301,523Us provisional application · filed 29 Feb 2016

Application62/332,444Us provisional application · filed 5 May 2016

Application62/406,825Us provisional application · filed 11 Oct 2016

PCT/US2016/059592Parent of this continuation · filed 28 Oct 2016

Application15/745,961Parent of this continuation · filed 18 Jan 2018

Application15/981,497Parent of this continuation · filed 16 May 2018

US 10,272,230 B2Parent of this continuation · filed 30 Apr 2019

US 2020/0368506 A1Pre-grant publication · published 26 Nov 2020

US 10,758,718 B2Parent of this continuation

US 2018/0207412 A1Published application

US 2018/0256866 A1Published application

US 11,951,270 B2This patent

From the US filing history. Foreign family members aren’t listed.

Systems and methods for endovascularly accessing a subarachnoid space

Life of this patent

Systems and methods for endovascularly accessing a subarachnoid space

Life of this patent

Abstract

Claims17