This tutorial will highlight some of the devices that we have utilized in the Visible Heart
Catheters have numerous applications in cardiac treatments. They are used to
diagnosis patients, deliver treatments, and implant devices. This tab contains videos of electrical
mapping catheters, monitoring catheters, ablation catheters, and lead delivery catheters in
functional human and animal hearts.
Leads are used to deliver electrical energy to stimulate the heart in the form of
pacing pulses or higher field voltages to elicit defibrillation. This tab includes videos of pacing
leads, defibrillation leads, heart failure leads, epicardial leads, and lead extraction methods in
Valve replacement is a treatment for patients with dysfunctional valves. The most
common indications for a valve replacement are regurgitation (leaky valve) and stenosis (narrowed
valve opening). This tab contains videos of surgical mechanical valve replacements, surgical tissue
valve replacements, and transcatheter tissue valve replacements.
A stent is a medical device made up of wire mesh that provides scaffolding to
support the wall of the artery and keep its lumen open and free from the buildup of plaque. Balloon
angioplasty and coronary stents have prevented numerous patients from undergoing coronary artery
bypass graft surgery, which can be more costly and painful. This tab includes videos of stent
deployment in the coronary arteries of human and swine hearts.
The need for structural repairs of the heart can be due to congenital
deformities or the progression of cardiac disease. These structural problems can be repaired during
open-heart procedures requiring cardiopulmonary bypass, using minimally invasive surgical approaches
(off-pump), or transcatheter delivery systems. This tab includes videos of mitral annuloplasty and
the edge to edge procedure.