| 摘要 |
A needle set for biopsy includes a hollow cannula (3) and a plunger (7), aimed at being introduced slidingly into the cannula (3). The plunger (7) has, at its distal portion, a lateral cavity (9) aimed at receiving a biopsy sample to be taken. The cannula (3) and plunger (7) are also provided, at their respective proximal ends (3b,7b), with relative heads, a cannula head (4) and a plunger head (8), respectively. The needle set (100) includes also a shaft (10), which extends for a predetermined length from the plunger head (8), parallel to the plunger (7) and toward the distal portion thereof. The shaft (10) is slidingly engaged in a longitudinal hole (5) made in the cannula head (4) parallel to the cannula (3), so as to guide and limit the stroke of the plunger (7) inside the cannula. <IMAGE> <IMAGE> |
