The LifeVest is a wearable defibrillator for individuals that are at risk of sudden cardiac arrest.
It's used as an alternative to the implantable defibrillator.
Dr. Prakash Desai with the Amarillo Heart Group said the LifeVest can be used during the 90 days that an individual has to wait before getting an implantable one.
Desai also said it allows doctors to monitor and see if that individual needs to get the implantable defibrillator.
For Coy Kelley, the LifeVest meant the difference between life and death.
Kelley was working alone 20 miles outside of Amarillo. He got into his truck, and that's the last thing he remembers.
He woke up about a minute later to the sound of the monitor on the LifeVest beeping and telling him to call an ambulance. He was able to call the hospital and his wife.
The vest sensed a dangerous heart rhythm and delivered a shock treatment while Kelley was unconscious.
Kelley started wearing the LifeVest in August, when he started experiencing heart problems. He wears it all the time under his clothes.
"I'm just glad to be here, and that's all I can say. So can agitate and aggravate everybody?| be myself," Kelley said.
The LifeVest was approved by the FDA in 2011 and has been prescribed to more than 100,000 patients.