Surgeons may need to relieve pressure on the brain by drilling burr holes through the skull using a trephine in the case of brain injuries and strokes.
Performing burr hole craniotomies still happens to be a manual cranking operation, which is quite injury prone and can even cause meningitis.
Researchers at Fraunhofer Institutes for Photonic Microsystems, Laser Technology, and Integrated Circuits have come out with a novel laser system that can be a safer option.
An articulated mirror arm is used to guide the laser beam into the hand piece.
The core consists of two new types of micro-mirrors. The cranial vault incision is made by the first one and any further adjustments to position are made by the second mirror.
"Whereas the silicon panel in conventional micro-mirrors is mirrored by an aluminum layer measuring a hundred nanometers thick, we applied highly-reflective electric layers to the silicon substrate," scientists explained.