Smallest brain implant ever helping those living with hydrocephalus

Clinical trials are underway for a neural implant to monitor brain pressure in those living with hydrocephalus.

The condition causes fluid to build up in the brain which, if untreated, can be fatal.

Patients can be born with hydrocephalus or develop it later in life.

It is typically treated with a small tube, called a shunt, implanted under the skin which drains fluid from the brain into the stomach.

However, shunts had a 50 percent chance of failure in the first two years.

To tackle this, researchers at the Auckland Bioengineering Institute and Kitea Health developed an implant to measure pressure in the brain using an external, wireless wand.

The implant is only two by three millimetres, and weighs 0.3 of a gram.

Clinical trials in adults are about 50 percent complete, and trials on children have begun.

It is a world first, the smallest brain implant ever developed, as well as the first implantable medical device developed in New Zealand.