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Posted by on Jul 27, 2012 in Science |

Microsystems to treat strokes

Microsystems to treat strokes

We know as stroke, or stroke, loss of function resulting from the interruption of blood flow to the brain that result in consequences such as loss of mobility, aphasia, dizziness or loss of vision affecting clinical events a considerable number of people requiring care and long rehabilitation process. While there are lines of work to improve the rehabilitation process, for example using video games or electrical stimulation , the best therapy is prevention or action early. In this sense, the Royal Melbourne Institute of Technology (RMIT) has developed a micro-engine that could treat aneurysms and strokes in cases where surgery is not possible or is extremely complex.

The micro-motor is a device MEMS (Microelectromechanical Systems) of 250 microns wide, ie, the width of a human hair and the size of a grain of salt. Why would this micro-motor? The idea is that you can enter the small veins that cross the human brain and browse to find the obstruction.

For invesigación team of the School of Electrical Engineering and Computer RMIT in collaboration with the Royal Melbourne Hospital, neurologists need instruments and equipment far more advanced than the currently available because approximately 15% of the neurosurgical operations are unsuccessful.

For the treatment of patients who have suffered a stroke, use of a flexible plastic microcatheters we put into the arteries to the brain and reach the blood clot that has clogged brain blood flow

The microsystem, it took 6 years to develop, has been manufactured by the Center for Nanofabrication of Melbourne, will allow neurosurgeons to precisely guide the catheters inserted through the veins of the patient’s brain since, until now, used tubes plastic wrapped and sometimes they have some resistance when traveling through the blood vessels (which have a diameter of 0.5 mm). In fact, in the worst case, the resistance to movement within the veins can lead to damage or even break them and eventually cause death of the patient.

How does it work then? Imagine the vein introduce a kind of micro-car that is pulling the tube and makes it pass through the veins to reach the blockage to break it an interesting development that would allow neurosurgeons to increase their accuracy and above all, the rate of success of interventions.

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