PREPARATION OF PHYSIOLOGICALLY SIMULATED TESTING BENCHES AS PER ISO 25539 FOR THE TESTING OF VASCULAR IMPLANTS

Abstract

Atherosclerosis occurs due to the accumulation of the fats, cholesterol and hardening of the calcium anywhere in the arteries. Coronary artery disease (CAD) is a type of the atherosclerosis which can cause severe heart stroke leading to the heart failure. Coronary artery stents are widely used these days as a treatment for the coronary artery disease (CAD). Stents are tubular mesh like structures of metals which are inserted by procedure known as percutaneous transluminal coronary angioplasty (PTCA). A catheter trackability testing device is required to test the trackability and resistive force encountered by catheter in the tortuous anatomy of coronary arteries in an in vitro environment. Trackability is defined as the ability of the stent and the delivery system to advance over the guide-wire along the path of vessel in a simulated anatomy. Development of this type of device is helpful in analyzing the trackability of catheters under the prevailing conditions of coronary artery which can be further used for improvement in the device design.