| 摘要 |
This fixing device comprises a clamping claw consisting of a pair of diametrally opposed semi-cylindrical curved shells each connected by means of a small bar parallel to the shell generatrices to an end pivot pin, the bars extending on either side of the shells. An axial bore is formed through the claw and the pair of pivot pins are provided, in the vicinity of their junction with the corresponding bars, with a circular land having a diameter at least substantially equal to that of the shells, a cylindrical sleeve of flexible and sterilization-resistant material being slipped over these lands and extending therebetween in order to impart the necessary fluid-tightness to the axial bore in relation to the interior of the handpiece. |
