Pricking device for collecting a droplet of blood

Abstract

Abstract To make a small prick in order to collect a droplet of blood, use is made of a movable mounting (3) bearing a needle (1) and stressed by a spring. In the rest position of the spring as shown in the drawing, the needle (1) lies short of the edge (8) of the end (9), and there remains a distance x between a radial rod (5) (bearing a push-button 5a) and a stop arrangement 7. When the mechanism is triggered, the spring pushes the mounting (3) abruptly, and the rod (5) passes beyond the rest position and reaches the stop arrangement (7) which limits its path, in such a way that the needle (1) emerges, reaches a determined end position and returns automatically to its protected position. <IMAGE>

Inventors

• 👤 Gérard Joseph Slama

Bibliographic Details