A lancet structure (606) for a lancet housing assembly (600) of a portable medical diagnostic device (10) for sampling body fluids from a site of a patient's skin, in which the lancet structure (606) is adapted to be placed in a lancet compartment (605), the lancet structure (606) comprising a piercing end of the skin (608) and a blood transporting part (610) near the piercing end of the skin (608), in which the piercing end of the skin (608), when extending through an opening (636) of the lancet compartment, adapts its shape and size to penetrate the patient's skin into place of the skin to provide an amount of blood, the blood transport part (610) being arranged and configured to receive the amount of blood from the skin piercing end (608) and to move the amount of blood away from the site of the skin and a reac material (650) located at the bottom (70, 84) of the lancet compartment (605) and inside the lancet compartment (605), in which the lancet structure (606) includes a spring finger (616) which is extends outwardly extending upwardly in a portion that extends upwardly and longitudinally in a portion that extends longitudinally, in which an elbow connects the portion that extends upward (618) and the part that extends longitudinally ( 620), characterized in that the longitudinally extending part (620) includes a gibbed part (624) that is adapted to be admitted within a notch (626) of the lancet compartment (605) thus providing a support structure for the structure of lancet (606) inside the lancet compartment (605).Una estructura de lanceta (606) para un conjunto de carcasa de lanceta (600) de un dispositivo de diagnóstico médico portátil (10) para el muestreo de fluidos corporales de un lugar de la piel de un paciente, en la que la estructura de lanceta (606) se adapta para situarse en un compartimento de lanceta(605), comprendiendo la estructura de lanceta (606) un extremo de perforación de la piel (608) y una parte de transporte de sangre (610) próxima al
