Neurovascular Intervention

Smart Course on how flow diverters work.

The Chitra flow diverter is designed to have a better grip on the walls of arteries of complex shapes in order to reduce the risk of migration of the device.
The unique design is in its weave also makes the stent resistant to kinking or twisting, when it is placed in tortuous arteries and those with complex shapes. Even a 180 degrees bend does not occlude the lumen of the stent.

Company accelerates development of its nanoparticle-based drug delivery technology platform to treat peripheral artery disease and other applications.

Researchers at the University of Nebraska-Lincoln have developed a 3D-printed stent that can aid surgeons in stitching small arteries together. The small tube sits between the open ends of the artery and helps to hold them in place during stitching. The device is 3D-printed using a sugar-based material, meaning that it dissolves and disappears within minutes after the artery has been sealed.

Penumbra’s Indigo system is designed to remove clot from arteries and veins in the peripheral vasculature. It was introduced in 2014, and Penumbra announced it received clearance for the PE indication in January 2020.

BioSerenity has announced that its electroencephalography (EEG) wearable device system has received 510(k) clearance from the US Food and Drug Administration (FDA). This clearance includes BioSerenity’s Neuronaute EEG system and IceCap EEG wearable device, which are intended to allow physicians to remotely monitor and assess electrical brain activity of people living with epilepsy.

According to ClearMind, the Axonpen System supports a clinical shift in the minimally invasive removal of unwanted intracranial fluid and tissue, as commonly manifested in cases of intracerebral haemorrhage (ICH) and subdural haematomas.

Mission Thrombectomy 2020+ (MT2020+), a global campaign of SVIN (Society of Vascular and Interventional Neurology), recently published Mechanical Thrombectomy for Acute Stroke. Building Thrombectomy Systems of Care in Your Region: Why and How—a white paper targeted towards health policymakers. The paper examines the widespread inaccessibility and geographical disparities in receiving mechanical thrombectomy, and calls for sweeping increase in awareness, accessibility to thrombectomy, and action on a worldwide level.

3D printing technology is widely used in the field of implantable medical device in recent decades because of its advantages in high precision, complex structure, and high material utilization. Based on the characteristics of 3D printing technology, this paper reviews the manufacturing process, materials, and some typical products of 3D printing implantable medical devices and analyzes and summarizes the development trend of 3D printed implantable medical devices.

One of our favorite examples of science-as-art is the vascular corrosion cast: a physical replica of an explanted organ’s internal vascular networks made by first injecting the vasculature with plastic resin, then chemically degrading the original tissue (Fig. 1). These captivating structures remind us of the spectacular architecture woven throughout nature, but in our research group, they also serve as goalposts for our ongoing efforts in vascular biofabrication.

A multicentre study has reported that clot perviousness or permeability, the ability for contrast used during the initial imaging workup to seep through a clot, as estimated by computed tomography (CT) imaging, is associated with ”first-pass success” in large vessel occlusion (LVO) strokes initially treated with an aspiration thrombectomy approach.

Cerenovus, part of Johnson & Johnson Medical Devices Companies, has today announced the European launch of Cerenovus Nimbus, a device designed to remove tough clots for successful revascularisation in patients with acute ischaemic stroke caused by a large vessel occlusion.

The Stentrode brain-computer interface (BCI) has successfully been demonstrated by researchers to help patients with severe paralyses compete tasks such as texting, emailing, shopping and online banking, in a new study. The BCI does this without the need for open brain surgery.

Attorney Becca Timmons joins Mike Papantonio to explain an emergency recall by the FDA for a popular catheter used to remove blood clots during brain surgery. Manufactured by Penumbra, the faulty device has actually caused ruptured arteries, strokes, and even death.

The proposed indication for use includes: “The MagicTouch SCB Sirolimus coated balloon catheter is indicated for percutaneous transluminal coronary angioplasty, after appropriate vessel preparation, of small coronary artery lesion lengths of 6‒36mm in coronary arteries with reference vessel diameters of 1.50‒2.75mm.”

Rapid Medical states that, with Drivewire, physicians control the direction and shape of the guidewire’s tip while it is inside the vessel, precisely navigating the neuro and peripheral vasculature. Rapid Medical add that this intravascular steering provides access to difficult anatomical locations, increasing the physician’s ability to treat vascular diseases with less invasive interventional approaches.

“We recognise that not all neurovascular interventions can be displaced by robotic surgery due to the complexity of vascular and aneurysm anatomies, however this accomplishment does demonstrate promise for procedures to be performed like this in the future. The Contour device is positioned as an easy to use ‘one and done’ solution, which we believe makes this a very realistic application for robotic surgery, as Nitin Dange has clearly demonstrated.”

Study of 12,128 patients over 5 years showed automated AI measurement of visceral fat area on abdominal CT images predicts future heart attack or stroke risk better than overall weight or BMI

Coils have the potential to introduce undesirable point or localised forces on the aneurysm wall which can lead to an IAR. The incidence rate of IAR is low but the mortality rate associated with such complications remains high. Causes of IAR are likely multifactorial and may be related to characteristics of the aneurysm such as wall thickness or integrity as well as properties of the procedure such as catheter tip position. For example, it is possible that a very soft, small coil can perforate an aneurysm if deployed through a catheter tip that is pinned against an aneurysm wall (immediately apposed to the dome). IAR rates as reported in the literature have found no specific correlation related to coil type (framing, filling, finishing) and sequence. IAR rates are somewhat dependent on aneurysm location10, and size.

The UK-based startup Proximie, which has developed an augmented reality tool to save lives by allowing senior surgeons to virtually climb into any operation theatre across the globe, has seen a 430% increase in surgeries this year.
Since being founded by the NHS surgeon Dr Nadine Hachach-Haram in 2016, the startup has managed to attract 2,500 users across 300 hospitals and has had its tool used in over 7,000 surgeries.

Neurovascular intervention is an approach for the treatment of neurological disorders and neurovascular diseases that affects the central nervous system. It is also used for the treatment of associated blood vascular systems using minimally invasive procedures. Neurological medical devices have been broadly classified into Neuro-stimulation Devices, Interventional Devices, Cerebral Spinal Fluid (CSF) Management Devices and Neurosurgery Devices.

Basics of Neurovascular Intervention and Neurointerventional devices