| 摘要 |
<p>A surgical guidance device for the precise positioning of a surgical object, comprises a base (12) having three feet (16.1, 16.2 and 16.3) which define a first plane (18.1), a swivel head (38) at the end of a radius arm (30), and a guide (46) for guiding the surgical object, the guide being mounted on the swivel head (38). The radius arm is slidable in its longitudinal direction and pivotally displaceable about a pivot axis (24) which is normal to the plane (18.1). This enables the swivel head (38) to be moved to any position in a plane (18.2) parallel to the plane (18.1). Tightening of a wing nut (34) locks the swivel head in position. There is a ball-and-socket connection between the guide and the swivel head, whereby the swivel head can swivel about a pivot point in any direction with respect to the swivel head, and can be locked in position by means of clamping screws (44).</p> |
