Cerevasc, LLC

Tufts University

The Charles Stark Draper Laboratory, Inc.

Adel M Malek

Joseph M Gordon

Andrew Ziegler

Amos G Cruz

Carl Heilman

David A Rezac

Timothy Robinson

Joseph Ting

Jack B Sattell

Anthony Maiorano

Rami S Mangoubi

Shane Siwinski

Mukund Desai

Gregory T Martin

Alexander Bonin

Ayan A Bhandari

Andrew Copeland

Timothy W Robinson

Joseph Gordon

Eric Miller

Alexandra Lauric

Jonathan B O'Keefe

Jennet Toyjanova

Jeffrey C Cerier

Jonathan B O'KEEFE

Thomas R Johnson

Carl B Heilman

Methods for deploying and removing an endovascular cerebrospinal fluid (CSF) shunt device in a patient's spinal subarachnoid space or third ventricle are disclosed herein. The disclosed methods can be used to treat elevated CSF pressure (e.g., acquired communicating hydrocephalus, pseudotumor cerebri), normal pressure hydrocephalus, or as a temporary measure to drain CSF and/or blood from the subarachnoid space instead of inserting an external ventricular drain in the patient.

Systems and methods for treating hydrocephalus

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.

Systems and methods for endovascularly accessing a subarachnoid space

In some aspects, catheter devices can include: a reinforcing member having a proximal and distal ends, the reinforcing member comprising: discrete longitudinally arranged structural regions between the proximal and distal ends comprising: a first, proximal, structural region defining a first series of wall perforations that generate structural properties within the first structural region, the first series of wall perforations setting a first stiffness of the first structural region; and a second structural region, disposed distally relative to the first structural region, defining a second series of wall perforations that generate structural properties within the second structural region, the second series of wall perforations setting a second stiffness of the second structural region, which is less than the first stiffness, wherein the second series of wall perforations differs from the first series of wall perforations by at least one of: cut balance, cut frequency, or pitch.

Catheter systems and methods for medical procedures using catheters

Implantable shunt devices and methods for draining cerebrospinal fluid from a patient's subarachnoid space include a shunt having opposed first and second ends, the second end being constructed to penetrate a wall of a sigmoid, transverse, straight, or sagittal sinus of the patient, a one-way valve, a hollow passageway extending between the second end and the one-way valve such that cerebrospinal fluid can be drained through the second end and out through the valve, and a mechanism coupled to the shunt and configured to anchor the shunt at a desired location proximal to the subarachnoid space.

Endovascular cerebrospinal fluid shunt

An endovascular shunt implantation system includes a guide member configured for being deployed in an inferior petrosal sinus, and a delivery catheter movably coupled to the guide member, wherein a distal end of the delivery catheter includes a tissue penetrating element. A guard is disposed over the tissue penetrating element, the guard having an open distal end portion including an inner surface feature configured to deflect the tissue penetrating element away from the guide member when the tissue penetrating element is translated distally relative to the guard. A shunt delivery shuttle is positioned within, and is movable relative to, the delivery catheter, the shunt delivery shuttle having a distal portion configured to collapse around an elongate shunt body to thereby transport the shunt body through the delivery catheter, wherein the distal portion self-expands to release the shunt body when the distal shuttle portion is advanced out of the delivery catheter.

Methods and systems for treating hydrocephalus

Methods for treating hydrocephalus using a shunt, the shunt having one or more CSF intake openings in a distal portion, a valve disposed in a proximal portion of the shunt, and a lumen extending between the one or more CSF intake openings and the valve, the method comprises deploying the shunt in a body of a patient so that the distal portion of the shunt is at least partially disposed within a CP angle cistern, a body of the shunt is at least partially disposed within an IPS of the patient, and the proximal portion of the shunt is at least partially disposed within or proximate to a JV of the patient, wherein, after deployment of the shunt, CSF flows from the CP angle cistern to the JV via the shunt lumen at a flow rate in a range of 5 ml per hour to 15 ml per hour.

Methods and systems for draining cerebrospinal fluid into the venous system

An extravascular access system includes a tubular stent configured to be deployed in a blood vessel, the stent having a sidewall and a proximal end opening and an internal scaffolding comprising one or more structural members, and an elongate access catheter having a distal end portion configured to access the blood vessel wherein when the stent is deployed in the blood vessel, and the distal end portion of the catheter is inserted into the proximal end opening of the stent, the one or more internal structural members of the stent deflect the distal end portion of the catheter towards a wall of the blood vessel.

Directional stent for accessing extravascular spaces

Endovascular drug delivery systems and methods are disclosed herein for delivering a therapeutic agent to the intracranial subarachnoid space of a patient, and/or deploying an endovascular drug delivery device distal portion in the intracranial subarachnoid space and a portion of the drug delivery device body in a dural venous sinus such that a therapeutic agent is delivered from the deployed drug delivery device into the intracranial subarachnoid space.

Systems and methods for minimally invasive drug delivery to a subarachnoid space

An implant sized and shaped to be endovascularly delivered to the middle meningeal artery includes a carrier that carries a payload between first and second ends thereof. An anchor mechanism associated with the implant transitions into a swollen state in response to exposure to bodily fluids. In the swollen state, said anchor mechanism anchors the implant to the middle meningeal artery. Before or during the transition, the anchor mechanism permits endovascular delivery of the implant to the middle meningeal artery.

Implant in middle meningial-artery

Growing community of inventors

Weston, MA, United States of America

Adel M Malek