| 摘要 |
<p>A surgical assembly (10) for removing body tissue for disposal or analysis includes a conduit piece (12) interconnecting a cannula (20) and a handheld rotary valve (40). The cannula (20) has a distal end (24) for insertion into a patient's body. A notch (30) is defined in the distal end (24), adjacent to the tip opening (28). A surgeon maneuvers the distal end (24) to catch and hold a piece of body tissue in the notch (30). After body tissue has been positioned in the notch (30), a cutter (50) is moved forward from its position in the cannula interior (22) toward the distal end (24). When the cutter (50) passes through the cannula interior (22) to cover the region of the notch (30), any tissue entrapped in the cannula interior (22) is severed by the sharpened edge (52). This severed, dissected tissue can be drawn through the cutter passageway (54), into the conduit piece (12) and through the handheld rotary valve (40) to a storage site.</p> |
