A - Human Necessities – 61 – B
Patent
A - Human Necessities
61
B
A61B 17/34 (2006.01) A61B 5/15 (2006.01) A61B 5/14 (1995.01)
Patent
CA 2140726
The present invention is a lancing device with an automatic cocking feature. The automatically cocking lancing device utilizes a firing button loaded with a firing button spring and a drive spring connecting the firing button to a plunger. As the user presses the firing button and compresses the firing button spring, the user also moves the plunger until the plunger engages a latching mechanism. The latching mechanism holds the plunger in a latched position, and, as the user continues pressing the firing button, the user compresses the drive spring connected to the plunger. Before firing, the drive spring is compressed enough such that the biasing force of the drive spring is sufficient to cause the plunger to strike and drive a lancet into the user's finger. At that point, the pressing of the firing button causes the lancing device to fire. The plunger unlatches and drives the lancet into the user's finger under the biasing force of the drive spring. At firing, the firing button spring is compressed, and, once the user releases the firing button, the firing button spring returns the plunger and the firing button to the cocked position under the biasing force of the firing button spring.
Dispositif de crevage armé automatiquement. Ce dispositif est muni d'un bouton d'amorce chargé par un ressort et d'un ressort moteur reliant le bouton d'amorce au piston. Lorsque l'utilisateur appuie sur le bouton d'amorce et comprime le ressort du bouton, il fait bouger le piston jusqu'à l'enclenchement du mécanisme de verrouillage. Ce mécanisme tient le piston en position verrouillée et, durant que l'utilisateur continue d'appuyer sur le bouton, le ressort moteur relié au piston est comprimé. Avant l'amorce, le ressort moteur est comprimé suffisamment pour que la force de polarisation du ressort moteur permette que le piston frappe et entraîne la lancette vers le doigt de l'utilisateur. € ce moment, le fait d'appuyer sur le bouton entraîne l'amorce du dispositif de crevage. Le piston déverrouille la lancette et l'entraîne dans le doigt de l'utilisateur sous la force de polarisation du ressort moteur. Au moment de l'amorce, le ressort du bouton d'amorce est comprimé et, lorsque l'utilisateur relâche le bouton, le piston et le bouton sont retournés en position armée par le ressort sous la force de polarisation du ressort du bouton d'amorce.
Purcell D. Glenn
Whitson Robert C.
Corporation Bayer
Osler Hoskin & Harcourt Llp
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