Patent ID: 8845549
Filing Date: 2014-09-30
Classification: A61B,A61M

Abstract:
1. A method for a system for withdrawing body fluid from a body part via a withdrawal site, comprising: depressing skin at the withdrawal site with a penetrating member of a system for withdrawing body fluid in a direction toward a surface of the skin; measuring an amount of elastic tenting of skin of the body part as the penetrating member depresses the skin in a direction toward a surface of the skin to determine elasticity of the skin; storing the amount of elastic tenting of the skin in a processor of the system for withdrawing body fluid; selecting a driver profile from a set of alternative driver profiles stored in the processor of the system for withdrawing body fluid; penetrating the skin by driving the penetrating member in accordance with the selected driver profile; settling at a depth setting that depends on the measured amount of elastic tenting of the skin for a certain period of dwell time that is related to the measured amount of elastic tenting of the skin before starting to withdraw from the withdrawal site; and withdrawing body fluid from the body part via the withdrawal site.