| 摘要 |
<p>The present invention relates to a cannula assembly comprising a cannula body extended in a particular length to be inserted in the affected area of the human body; and a fixing unit installed on the cannula body to fix the position of the cannula body inserted in the affected area. The fixing unit comprises a first tube body installed in a position separated to have a particular distance from the bottom end of the cannula body and made of elastic material so that the volume is increased when a fluid is fed therein and the volume is decreased when the fed fluid is discharged to the outside; a second tube body installed in the cannula body upwardly separated to have a particular distance above the first tube body and made of elastic material so that the volume is increased when a fluid is fed therein and the volume is decreased when the fed fluid is discharged to the outside; and an operating unit for changing the volumes of the first tube body and second tube body by feeding a fluid into the first tube body and second tube body and discharging the fluid fed in the first tube body and second tube body. The cannula assembly according to the present invention prevents the cannula from slipping and being separated to the outside even during an operation, and a change in the position of insertion is also prevented. At the same time, important areas are not damaged, so that an operator can easily perform a procedure.</p> |
