Thank you Prof Dr Hamid!

This is the information we get from Wikipedia:
The aortic valve is one of the valves of the heart. It is normally tricuspid (with three leaflets), although in 1% of the population it is found to be congenitally bicuspid (two leaflets). It lies between the left ventricle and the aorta. During ventricular systole, pressure rises in the left ventricle. When the pressure in the left ventricle rises above the pressure in the aorta, the aortic valve opens, allowing blood to exit the left ventricle into the aorta. When ventricular systole ends, pressure in the left ventricle rapidly drops. When the pressure in the left ventricle decreases, the aortic pressure forces the aortic valve to close.

Aortic valve replacement means that a patient's aortic valve is replaced by a different valve. The aortic valve can be affected by a range of diseases and require aortic valve replacement. The valve can either become leaky or stuck partially shut. Aortic valve replacement currently requires open heart surgery. There are two basic types of artificial heart valve, mechanical valves and tissue valves. Tissue heart valves are usually made from animal tissues, either animal heart valve tissue or animal pericardial tissue. The tissue is treated to prevent rejection and to prevent calcification.There are alternatives to animal tissue valves. In some cases a human aortic valve can be implanted. These are called homografts. Homograft valves are donated by patients and recovered after the patient expires. The durability of homograft valves is probably the same for porcine tissue valves. Another procedure for aortic valve replacement is the Ross procedure or pulmonary autograft. The Ross procedure involves going to surgery to have the aortic valve removed and replacing it with the patient's own pulmonary valve. A pulmonary homograft (a pulmonary taken from a cadaver) or a valvular prosthesis is then used to replace the patient's own pulmonary valve.(Wikipedia)

But the information is not really help us. We need someone to explain to us in detail, especially the mechanism of the valve.

On 2nd of September 2010, we met Prof Dr Hamid (Anatomy Professor), who explained to us details theory of Aortic Valve.

We managed to record the brief explanation given by Prof. Dr.Abdul Hamid Bin Abdul Rashid @ Kyaw Myint, so that we can refresh our memory for each research step.



We need to explore more the valve leaflet. We managed to digitized the leaflet using Minolta 3D laser scanner. We need to explore techniques on how to digitize the whole implant.