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Implantable Epilepsy Device in Initial Clinical Studyrns-implant.jpg

An implantable epilepsy device from NeuroPace Inc is currently tested in a randomized, double-blind, sham stimulation controlled investigation at approximately 28 sites throughout the United States. The RNS-device is designed to detect abnormal electrical activity in the brain and to deliver small amounts of electrical stimulation to suppress seizures before there are any seizure symptoms.

The RNS is placed within the skull and underneath the scalp. The RNS is then connected to one or two wires containing electrodes that are placed within the brain or rest on the brain surface in the area of the seizure focus (where seizures start). The RNS is designed to continuously monitor brain electrical activity from the electrodes and, after identifying the "signature" of a seizure's onset, deliver brief and mild electrical stimulation with the intention of suppressing the seizure. This type of treatment is called responsive stimulation, but it is not yet known if it will work for the treatment of epilepsy.

A modified laptop computer known as a programmer communicates with the RNS via a hand-held wand. The programmer collects information from the RNS about brain electrical activity and is used to program the RNS to make detections and deliver responsive stimulation.

The purpose of the RNS System Pivotal Clinical Investigation is to assess the safety and to demonstrate that the RNS System is effective as an add-on (adjunctive) therapy in reducing the frequency of seizures in individuals 18 years of age or older with partial onset seizures (those that start from one or two areas of the brain) that are refractory (resistant or hard to treat) to two or more antiepileptic medications. Participants in the trial will continue to receive their epilepsy medications.

Read more:
NeuroPace website 
Singularity Hub 
Videoclip from KGO-TV.com  

Medtronic_NerveNew Intraoperative Nerve Integrity Monitors

Medtronic has launched of a couple new intraoperative nerve integrity monitors. The NIM-Response® 3.0 and NIM-Neuro® 3.0 help locate critical nerves during surgery and monitor their integrity throughout the procedure.

According to the press release from Medtronic the The Nim 3.0 systems enables simultaneous monitoring during bipolar cautery, includes artifact detection software that distinguishes artifacts (false signals) from true nerve signals, stim Bur technology that combines stimulation with Medtronic’s electric Visao® High-Speed Otologic Drill and real-time continuous monitoring of nerve function via APS™ (Automatic Periodic Stimulation)* that provides early warning of a change in nerve function.

Read more in Press release

Platos_Cave.jpg3-D virtual visualization of the brain

A new 3-D visualization system has been implemented at the Methodist Hospital in Houston, USA. The system, called Plato´s Cave, projects 3-D views of the patient onto a screen, giving the surgeon a stereoscopic visualization of the anatomy.

“This technology enables us to combine data from CT, MRI and PET scans and channel them into a single computer to generate one clear, comprehensive image,” said Dr. E. Brian Butler, Chairman of Radiation Oncology at Methodist and creator of “Plato’s Cave.”

Read more...

microecogmicroECoG Electrodes reads brain activity

A press release from University of Utah describes the technology which provides a lot of information out of the brain without having to put electrodes into the brain. In the current study the microelectrodes were formed in grid-like arrays embedded in rubbery clear silicone.

The arrays were placed over parts of the brain controlling one arm and hand. The study showed that the microECoG electrodes could be used to distinguish brain signals ordering the arm to reach to the right or left, based on differences such as the power or amplitude of the brain waves.

Read more in Press release.

HIFUTranscranial MR-guided high-intensity focused ultrasound

A press release from The Magnetic Resonance Center of the University Children's Hospital Zurich reports that ten patients have been treated by means of transcranial high-intensity focused ultrasound (HIFU). HIFU has been used for the treatment of uterine fibroids and tumors of the prostate gland for some years. However, its application to the brain through the intact skull for non-invasive neurosurgery was not possible until recently.

The whole surgical procedure is planned and monitored in real time by MRI. The HIFU beams produced by 1024 transducers are transferred through the intact skull of the patient into the brain and concentrated onto a focus of 3 to 4 millimeters in diameter. Thus, sharply defined targets deep inside the brain are coagulated by heating them up to a focal temperature of 60 degrees Celsius. The whole surgical procedure lasts several hours and is performed without anaesthesia. Patients are awake and fully conscious during the intervention.

Read more – Press release

BrainGate2Clinical trial of the BrainGate2 Neural Interface System has started

BrainGate reports that their pilot clinical trial of the BrainGate2 Neural Interface System now has started, and is now recruiting participants. The study is called ´BrainGate2: Feasibility Study of an Intracortical Neural Interface System for Persons With Tetraplegia´ and the purpose is to obtain preliminary device safety information and demonstrate proof of principle (feasibility of efficacy) of the ability of people with tetraplegia to control a computer cursor and other assistive devices with their thoughts.


The 4x4 mm BrainGate2 sensor is placed into the motor cortex, connected to a percutaneous pedestal and neural recordings are made at least weekly for a year or more. Inclusion criterias are clinical diagnosis of spinal cord injury, brainstem stroke, muscular dystrophy, amyotrophic lateral sclerosis or other motor neuron disorders, complete or incomplete tetraplegia (quadriplegia) and the participants must live within a two-hour drive of the Study site (Massachusetts General Hospital, USA).

 

Read more on
BrainGate.org
Singularityhub.com

LibraOngoing US Trial of Libra Deep Brain Stimulation System for Parkinson's disease

St. Jude Medical has announced that they included 136 patients in an ongoing randomized, controlled study to evaluate the St. Jude Medical Libra and LibraXP™ DBS systems, to determine the devices’ safety and effectiveness in controlling many of the motor symptoms of advanced Parkinson’s disease. The patients have had the disease for more than five years and the symptoms were insufficiently controlled with medication alone.

 

Read more on Medgadget.com 

BryanBRYAN Cervical Disc Gets FDA Approval


BRYAN® Cervical Disc, a product of Medtronic Sofamor Danek, has been approved by the FDA. The cervikal disc implant is composed of a polyurethane and titanium discs designed to fit between adjacent vertebral bodies in the neck, is indicated "in skeletally mature patients for reconstruction of the disc from C3-C7 following single-level discectomy for intractable radiculopathy and/or myelopathy," according to the FDA.

What will it accomplish? The device should help stabilize the operated spinal level. Unlike a fusion procedure, the BRYAN® Cervical Disc is designed to allow motion at the operated spinal level. The effects of the diseased disc removal should include pain relief and improved function.

 

Read more on Medgaget.com.

Siemens presents Cappa C-Nav System for navigating with minimal radiationcappa-nav200.jpg

At the current Congress of the European Federation of National Associations of Orthopaedics and Traumatology (EFORT), June 3 - 6, 2009 in Vienna, Siemens is presenting a new navigation system for orthopedic and neurological surgeons called Cappa C-Nav.

From the press release from Siemens:

The optical navigation system Cappa C-Nav facilitates minimally-invasive surgical procedures
For surgical interventions, physicians increasingly use modern navigation technologies comparable. With Cappa C-Nav, Siemens Healthcare offers an optical navigation system that is especially suitable for spinal as well as trauma surgery. The new navigation system enables surgeons to perform interventions with greater safety and precision. Additionally, the method also minimizes radiation exposure to the patient as well as the OR staff. Siemens will introduce Cappa C-Nav for the first time at the Congress of the European Federation of National Associations of Orthopaedics and Traumatology (EFORT) in Vienna from June 3 – 6, 2009.

 

Read more on Medgaget.com.

Winner of Practical Handbook of Neurosurgery

From Leading Neurosurgeons, Marc Sindou (Ed.)handbook210.jpg

The winner in our contest of Practical Handbook of Neurosurgery From Leading Neurosurgeons is Dr Yi Liu from Dept. Neurosurgery, West China Hospital, Chengdu City, China.

Congratulations!

 

/Team NEUROSURGIC


Newsletter from NEUROSURGIC

 

Sent to all members June 2, 2009.

 

Dear colleague,

 

Welcome to the latest newsletter from NEUROSURGIC! You receive this mail since you are one of 850 members in our neurosurgical community! Every week NEUROSURGIC has visitors from over 100 different countries.

We would like to inform you about some new features on NEUROSURGIC:

  • A section with a large collection of links to neurosurgical videos

  • Now over 160 neurosurgical courses and conferences in our calendar.

  • The Startpage is updated, when you login you will immediately see neurosurgical news, latest added conferences and latest Forum posts.

  • Browse through over 60 neurosurgical books in the section Book previews.

  • Use our Logbook to keep track of your operations.

  • Find the latest neurosurgical product and company news in our News section.

 

Welcome to http://www.NEUROSURGIC.com

Regards,

Team NEUROSURGIC

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