Lancet actuator

A - Human Necessities – 61 – B

Patent

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Details

A61B 5/15 (2006.01) A61B 5/14 (1990.01)

Patent

CA 2093081

An actuating mechanism (10,110) for sequentially advancing and retracting a lancet needle (11,111) includes a carriage (12,112) for carrying the advancement and retraction of the needle, and a cam-following structure (14,114) for transmitting propulsion to the carriage during the advancement. The actuating mechanism is also provided with a drive cam structure (16,116) which engages the cam-following structure (14,114) to direct the advancement propulsion. The cam-following structure (14,114) can have a separate surface (20,120: 18,118) engagable with the drive cam structure during the retraction of the carriage (12,112) and during arming of the actuator for the advancement propulsion.

Mécanisme actionneur (10,110) pour faire avancer et reculer séquentiellement une aiguille de lancette (11,111) et comprenant un élément porteur (12,112) pour assurer l'avance et le recul de l'aiguille, et une structure entraînée par came (14,114) pour transmettre la propulsion à l'élément porteur durant l'avance. Le mécanisme actionneur est aussi doté d'une structure de commande par came (16,116) qui se met en prise sur la structure entraînée par came (14,114) pour diriger la propulsion d'avance. La structure entraînée par came (14,114) peut avoir une surface distincte (20,120: 18,118) qui peut se mettre en prise avec la structure de commande par came durant le recul de l'élément porteur (12,112) et durant l'armement de l'actionneur pour la propulsion d'avance.

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