Emergency medical officials in Louisville have unveiled a new tool designed to help heart attack patients.Ambulances are now equipped with wireless heart monitors that can send cardiograms to hospitals. Patients suffering from certain types of heart attacks can then be rushed directly to the heart catheterization lab to receive treatment.EMS director Dr. Neal Richmond says the equipment will allow the diagnoses to be made on the way to the hospital."Once that diagnosis is made they will wirelessly transmit that EKG right into the emergency room," he says. "The doctor will confirm it, they will activate the cath team, even it's 3 in the morning and we have an agreement that people are going to show up and be in the cath lab."Richmond estimates that about 100 patients will benefit from the new equipment every month.