Patent ID: 8475395

Claim:
A method for collecting blood with little pain, comprising: forming a puncture at a puncture site of a finger of a human being by one of a needle and another puncturing device, wherein (a) a depth of the puncture is no more than 0.4 mm, and (b) the puncture site is located on the dorsal surface of a finger and is defined by an area from a finger joint to a proximal nail wall and the area extending from the proximal nail wall to a lateral nail wall, wherein the finger joint is one of an IP joint of a thumb and a DIP joint of a finger other than the thumb; and enhancing bleeding by applying persistent positive pressure using a method selected from the group consisting of inflecting the finger joint of the punctured finger, asserting compression or avascularization at a proximal area from the puncture site on the finger, and compressing a tip of the punctured finger.