We are dedicated to providing a broad selection of premium Surgical Blade No. 11 with the invaluable support of a qualified team of professionals. Blade No. 11 is an extended triangular blade with a strong pointed tip and is honed along the hypotenuse edge, making it perfect for stab incisions. used in a number of surgeries, including making incisions for chest drains, widening the aorta, accessing coronary arteries, and removing calcifications from the aortic or mitral valves.