| 摘要 |
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. <IMAGE> |
