Fluid testing sensor for use in dispensing instruments

摘要

A sensor for use in a sensor dispensing instrument so that fluids can be tested when the sensor is ejected from within a sensor cavity of a sensor pack sealed by a foil. The sensor has a generally flat, rectangular shape and is formed by a base and a lid. The sensor has a perpendicularly extending longitudinal and transverse axes. A rear end of the sensor has a notch that is engaged by a knife blade within the sensor dispensing instrument as the sensor is being ejected through the foil from the sensor cavity. A front testing edge of the lid overhangs a front testing edge of the base of the sensor. One side edge of the sensor adjacent the front edges of the base and lid is beveled at about a 25 DEG angle. The front base edge extends from the beveled side portion across the entire remaining width of the sensor at an angle of approximately 10 DEG with respect to the transverse axis. A first major portion of the front lid edge extends from the beveled side portion across a significant portion of the width of the sensor at an angle of about 15 DEG with respect to the transverse axis of the sensor. The other portion of the front lid edge extends at an angle of about 25 DEG with respect to the transverse axis of the sensor so that a relatively pointed tip at the side edge opposite from the beveled side portion is formed to pierce the foil as the sensor is being ejected from the cavity.