Patent ID: 7841991

Claim:
A device for expressing bodily fluid from an incision in the skin, the incision being formed at an incision site in the skin surface, the device comprising: a skin stimulating member including at least three pins and at least three spaced-apart skin-engaging surfaces arranged around the incision site, said skin stimulating member having a first position with the skin-engaging surfaces contacting the skin and located at initial, outer positions, and a second position with the skin-engaging surfaces engaging the skin and located at constricting, inner positions, said inner position of each skin-engaging surface being in a radially-inward direction toward the incision site from the corresponding outer position, wherein each skin-engaging surface pivots around one of the pins when moving between the first and second positions; and a skin penetrating member connected to said skin stimulating member and positioned between the skin-engaging surfaces; and wherein said skin stimulating member includes at least three levers, each lever being pivotally mounted to said skin-stimulating member and each lever having a lower end with a roller, each said roller defining one of said spaced-apart skin-engaging surfaces and each said roller adapted to rotate about an axis extending approximately parallel to the skin surface at the incision site.