| 摘要 |
The invention relates to the designing of a biopsy system destined for the taking of tissue specimen with use of gradually insertable multiple needles and guide-stylets. Said system is designed to cooperate with the existing systems using multiple needles and gun-type mechanisms for the tissue specimen isolation. The invention is composed of a small-calibre guide-stylet (part I) characterised in that the extremity of its entry can be of various diameters and configurations. With the assistance of said guide-stylet, we succeed in obtaining the insertion of a needle-cannula (part III) provided with trocar stylet (part II) the cannula of which is compatible to the initial guide-stylet; after removal of both stylets (guide stylet and trocar) the remaining needle-cannula accommodates the passage either of an aspiration biopsy needle or of a gun-type mechanism meant for the multiple harvesting of material to be examined. |
