Lancet drive system depth control method and test strip location methods

摘要

Adjustment mechanisms are used in conjunction with integrated lancet test strips to adjust the position of the drive system, engagement system, or the drive coupling in a fixed stroke lancing system to thereby adjust the penetration depth of the lancet. In a variable drive stroke lancing system, the lancet penetration depth is adjusted by changing the stroke length of a drive system. The stroke length of a drive system is adjusted by rotating a cam or sliding a cam in a cam type drive system. In either the fixed or the variable drive stroke lancing system, the test strip and/or guidance foil of the integrated lancet test strip is immobilized while the lancet is actuated.

主权项

1. An apparatus, comprising:
an integrated lancing test strip including a lancet for forming an incision in tissue and a test strip configured to analyze a body fluid sample; a driver system configured to move the lancet to form an incision, the driver system having a fixed stroke length to move the lancet, the driver system including:
a driver configured to fire the lancet, the driver having an extension mechanism;a drive actuator;a cam engagement member configured to connect the drive actuator with the driver, the cam engagement member defines a first opening sized to receive the extension mechanism, wherein the drive actuator is configured to move the cam engagement member; andan engagement mechanism configures to hold the test strip stationary while the lancet is moved to form the incision in tissue, the engagement mechanism configured to receive the driver and the cam engagement member, the engagement mechanism defines a second opening sized to receive the extension mechanism, wherein the first opening and the second opening are arranged to limit a distance the driver moves when the driver fires the lancet;and an adjustment mechanism configured to move the driver system to adjust a starting position of the driver system, to adjust a distance the extension mechanism travels in the first and the second openings, and to adjust the depth of penetration of the lancet in tissue.