The stent: a major medical innovation that was invented by Hans Wallstén, Swedish. He designed a self-expanding, tube-shaped implant made of braided wire. After multiple tests on animals, this first stent, is finally called “Wallstent”. The role of the stent? As a stent, it can be either a stent or a vascular stent. It is slipped into a natural human cavity to keep it open and prevent it from shrinking after being surgically treated. When an artery is obstructed, usually a coronary artery, angioplasty is performed to dilate it with a balloon. So this is a device whose invention completely revolutionized the world of cardiology.
Professor Alain Carpentier, famous European inventor, cardiology-oriented, meanwhile, invented the implantable artificial heart called Carmat heart. While heart disease is one of the leading causes of death in the world, the Carpentier mechanical pump is biocompatible, battery-powered, and it does more than just keep patients alive while waiting for a transplant, because it’s made for last at least five years. Thanks to its unique design, and especially its ability to self-regulate blood flow, it improves the quality of life during this period. However, fewer than 2,000 people have been able to receive fully artificial hearts over the past 30 years, as these solutions are still considered interim solutions to keep patients alive before finding more suitable donors.
An important name in cardiology is that of Pr Antoine Lafont. It is at the origin of a new stage in the development of stents that has just been reached with the development of a fully biodegradable model. He designed it with the collaboration of Professor Michel Vert, a chemist and specialist in biodegradable polymers. The designers emphasize that this is a “truly” biodegradable model: it deconstructs and disintegrates after three months, the time necessary and sufficient for the artery to regain its configuration and tone. The other models did not reach the degradation stage until two years later. For patients, the advantage is to reduce the long-term intake of antiplatelet drugs (clopidogrel, aspirin) essential for the prevention of new cardiovascular events. Onlyaspirinisnecessary.
- Mitral dilatation
Last but not least, the cardiology surgeon, Philipp Bonhoeffer. His invention was one of the most significant in history as he developed a system whose purpose is similar to the Inoue system, which is mitral dilatation, but with a different technique: the multi-track system. This is to use a single metal guide that will serve for two catheters. This system has reduced the size of the percutaneous vascular approach. The concept of the Multi-Track Mitral Dilation System later found an important application in the field of cardiac catheterization diagnosis. Indeed, the Multi-Track angio catheter was the first catheter designed by Philipp Bonhoeffer that has achieved worldwide success. It allows cardiac angiography in the presence of a guide which has greatly facilitated and improved imaging during cardiac procedures.