| 摘要 |
<p>The invention features an assembly (10) for taking a biopsy sample from a site within the body of a patient. The assembly includes a resecting device (14) having a cutter (30) near its distal end for resecting and containing a tissue sample and a sheath exterior (12) to the resecting device (14) and sized to be present within the body with the resecting device. The sheath (12) includes an electrode element (22a, 22b) electrically isolated from the resecting device (14) and disposed on the sheath's outer surface for cauterizing tissue. The resecting device (14) and the sheath (12) cooperate to permit sequential resecting of a tissue sample from a resecting site and cauterizing of the site with the cutter sufficiently spaced from the electrode element (22a, 22b) to avoid heat damage to the tissue sample.</p> |
