Current, coronal arteries and veins intervenes cure is in center of great majority intervening treatment still is it is main avenue with arteria femoralis.

In addition, existing conduit and weapon are main design for arteria femoralis, the appliance alternative that devises technically for radial artery is limited.

To these pathological changes, the limitation with may exist certain into the road via radial artery, if radial artery way is very not perfect, choose arteria femoralis as far as possible.