Tag: Neurological Surgery

3D Printed Brain Regions Help Neurosurgeons Prepare for Difficult Procedures

by Medgadged • 2015/08/04 • 0 Comments

While neurosurgeons have been able to virtually navigate volumetric images of patients’ brain structures gathered from CT and MRI scans, difficult procedures within complex anatomy still remains challenging. At Boston Children’s Hospital, physicians are now using 3D-printed replicas of brain regions they’ll be working on to practice with before actual surgery. The researchers studying how the new […]

The post 3D Printed Brain Regions Help Neurosurgeons Prepare for Difficult Procedures appeared first on Medgadget.

3D Printed Brain Regions Help Neurosurgeons Prepare for Difficult Procedures

by Medgadged • 2015/08/04 • 0 Comments

The post 3D Printed Brain Regions Help Neurosurgeons Prepare for Difficult Procedures appeared first on Medgadget.

Artificial Semiconductor Wireless Retina Already Proving Itself in Lab Study

by Medgadged • 2014/11/12 • 0 Comments

Researchers from Tel Aviv University, the Hebrew University of Jerusalem, Israel, and Newcastle University have created a proof of concept artificial retina that may one day help treat a number of eye diseases, including age-related macular degeneration. The device is made of semiconductor nanorod-carbon nanotubes and doesn’t have any metal wire components. The resulting film is both flexible and light sensitive, allowing it to be shaped into the form of a natural retina.

The researchers tested the new device on chicks whose retinas were still not light sensitive, and showed that the artificial retina was able to induce neuronal activity in response to light.

EBS Technologies Electro-Optical Stimulation System Restores Vision Lost Due to Neurological Conditions (VIDEO)

by Medgadged • 2014/09/23 • 0 Comments

Many people affected by certain types of glaucoma, stroke, traumatic brain injury, and some other diseases lose a great deal of their vision due to neuropathy rather than from damage to the optical components of the eye. The nerve rich areas that can be affected are either in the brain’s regions that deal with vision or within the neuronal structures in the optic nerve. Turns out that a bit of electrical stimulation can get nerve cells that were otherwise dormant, but that survived the injury, to activate and become productive members of their community of cells.

EBS Technologies, a German firm, developed technology that takes advantage of this effect and it’s now going to become available for the first time at the University Medical Center Hamburg-Eppendorf. The company’s NEXT WAVE system consists of an EEG cap, special goggles that provide both optical and electrical stimulation, and an EEG amplifier that talks to the goggles. The idea is to stimulate the retina while energizing the optic nerve to send signals to the brain. The EEG cap is used to monitor and adjust the effect of the therapy via a Supervisor Unit used by the therapist.

Vittamed’s Non-Invasive Intracranial Pressure and Cerebrovascular Autoregulation Monitors Cleared in EU (VIDEOS)

by Medgadged • 2014/07/31 • 0 Comments

Vittamed out of Carlisle, MA received European CE Mark approval for its non-invasive intracranial pressure meter and non-invasive cerebrovascular autoregulation monitor. The Vittamed 205 intracranial pressure monitor works by applying pressure to the tissue surrounding the eye using a special pressure cuff. A Doppler ultrasound transducer placed over the eye measures blood flow through the intracranial and extracranial parts of the ophthalmic artery. The blood flow through the extracranial segment changes as the pressure is applied to the eye, while the intracranial segment responds to the intracranial pressure. Applying pressure to the eye until the blood flow matches in the two segments of the ophthalmic artery results in equal pressure in both parts and a readout is produced by the system. This technique does not require calibration for each patient and the company claims there’s little to no discomfort during the procedure.

Leica M320 F12 ENT Microscope with New Multifocal Lens, High Definition Camera

by Medgadged • 2014/06/02 • 0 Comments

Leica Microsystems has upgraded its Leica M320 F12 ENT surgical microscope with a new multifocal objective lens and a 1080p HD video camera.

The new lens allows surgeons performing ear, nose, and throat procedures to change the working distance between 200 mm and 300 mm from the surgical site without having to move the microscope. The camera allows video and photo capture, which are saved to an SD card within the device. These can then be shared with other clinicians and shown to patients, as well as saved into electronic medical records.

Leica Unveils Surgical Microscopes with Built-In TrueVision 3D Technology

by Medgadged • 2013/10/22 • 0 Comments

Surgical microscopes now offer 3D capabilities, but to see the images one had to use a separate cart with a 3D screen and related equipment on it. Now Leica Microsystems is releasing a couple new microscopes with with TrueVision (Santa Barbara, CA) 3D technology built right in.

The new Leica M720 OH5 and Leica M525 OH4 models stream both 2D and 3D video to other displays, features a small footprint and an ergonomic design, and, of course, legendary Leica optics.

Cerepress Elucidates Intracranial Pressure from a Quirky Scan of Eye

by Medgadged • 2013/08/15 • 0 Comments

Critically elevated intracranial pressure (ICP) represents the important cause of morbidity and mortality in patients with intracranial pathology, but measuring it has long been a problem because doing it effectively has required invasive methods that are not exactly practical on the sidelines of a football field or by a bedside.

Third Eye Diagnostics out of Bethlehem, PA has been developing a promising device called Cerepress that measures central retinal venous pressure (CRVP) and how fast blood is flowing through the ophthalmic artery, which together correlate well with intracranial pressure (Pearson’s correlation coefficient r=0.94, according to the company). The CRVP is itself derived from the intraocular pressure combined with images taken of the central retinal vein. A clinician places the device over the eye socket after which a probe extends and touches the eye, increasing the intraocular pressure and completely compressing the central retinal vein. When that happens, intraocular pressure equals the CRVP, so the system measures the IOP like any traditional tonometer. A Doppler ultrasound probe is the used to measure the blood velocity in the ophthalmic artery and the reading is combined with the CRVP to derive the intracranial pressure.

Leica 3D Surgical Microscopes with TrueVision Technology

by Medgadged • 2013/05/06 • 0 Comments

Leica is releasing two new surgical microscopes that combine 3D visualization and TrueVision technology from TrueVision Systems, Inc (Santa Barbara, CA).TrueVision provides visual guidance during procedures by putting graphic markers on relevant points…