| 摘要 |
<p>PURPOSE: A cannula is provided to easily secure a space for surgical operation while protecting organs and cells in case amount of a target cell for elimination is many and area of a surgical site is wide. CONSTITUTION: A plurality of protrusions(110) is projected along the outer circumference of a body rod(100). The plurality of protrusions is projected from the outer circumference of the body rod and secures a safe operation range and a space in the surgical operation. A protrusion accomplishing a first row and a protrusion accomplishing a second row are arranged as zigzag shape. A plurality of suction slits(101) penetrated along the outer circumference of a closed tip-end part is formed on the body rod. A feed port supplies fluid from a tank to an expansion part through a hydraulic motor.</p> |
