I've tried to find relevant sources to make this question more informed, but haven't had any luck. It just seems implausible to me that a humanoid with long and pointy canines could bite a victim in the neck, hit the jugular vein in two places with those same teeth, drink the blood either through hollow teeth or around the teeth, and withdraw the teeth from the wound without having the victim lose enough blood to die before the vampire wants him to.
Authors have worked around this supposed physical awkwardness. One story depicted a vampire whose feeding organ was a needle-like structure under the tongue. The famous "Strain" series created a special blood-sucking organ that projected more than a yard from the mouth when it struck the victims like a snake. I think there was another author who gave vampires the power to dislocate their jaws so that their mouths could fit comfortably around the neck. I once read a story about a vampire who fed from his victims' wrists.
I have thought about giving my vampire retractile claws so that it could use its hands to puncture or slash wherever it likes, and drink from almost any part of the body.
Is the usual way that vampires feed in the movies and TV plausible?