There are two main types of brain injury that can be claimed for: traumatic brain injury and acquired brain injury. Acquired brain injury is the blanket term for any kind of brain injury that was suffered after birth. Traumatic brain injury specifically refers to injuries causing an alteration to brain function by external force.
There are actually many ways to suffer a brain injury: from physical trauma through to swelling of the brain or even lack of oxygen. They can happen as a result of car accidents, falls, during surgery or for many other reasons.
Typically, yes, there is a three year time limit for starting legal proceedings for a brain injury claim – the same as any other type of personal injury.
This can vary enormously and depends on a wide range of factors, including the severity of the brain injury and the ways that it has affected your life.
Once again this can depend on the complexity of the case. It may be that once the case is submitted, the other side admits fault and there is no need to go court.