| 摘要 |
The device has a replaceable blade (2) supported at a distal end of a shaft (1) and moved between a normal position and an operating position by a positioning mechanism (5). The normal position is located in the shaft, and the operating position that overlaps the distal end of the shaft. A blood collection device (3) is arranged at the distal end of the shaft, where the blade is fixed in respective end positions by the mechanism. The mechanism comprises a push-button (7) that is positioned in a guideway (6). The blade is carried in defined and fixed end positions by the mechanism. |
