Patent ID: 7293989
Filing Date: 2007-11-13
Classification: A61C

Abstract:
1. An instrument for periodontal treatment, comprising: a blade integrally connected to a head which is connectable to a handpiece for imparting vibratory movement to the blade; wherein the blade has a center defining an axis, wherein a plane passing through the axis defines opposing sides of the blade and wherein the blade has an active part distributed along the blade on one of the sides, and an irrigation channel provided in the center of the blade for receiving a liquid, wherein the channel opens out into the active part of the blade for ensuring cleaning of the active part of the instrument during a treatment procedure and a removal of detached particles; and wherein the blade has an end remote from the active cart of the blade, wherein the end of the blade is detachably fixed to the head by a maneuverable bushing, wherein the blade is integrally connected on the bushing, and wherein the bushing includes an annular groove which, when the bushing is mounted on the head, forms a leak-tight annular chamber for ensuring communication between the irrigation channel of the blade and a delivery channel on the head for receiving liquid.