Patent ID: 7621744
Filing Date: 2009-11-24
Classification: A61B,A61C

Abstract:
1. Surgical guide for performing a sinus elevation procedure on a specific patient's maxillary sinus by penetrating a lateral bony wall proximate a maxillary sinus of the patient, said lateral wall having an external surface, and a varying length, height and depth extending along an X-axis, a Y-axis, and a Z-axis, respectively, said surgical guide comprising: a curvilinear-shaped structure for placement adjacent to and in direct and continuous contact with the external surface of said lateral wall of the maxillary sinus, said curvilinear-shaped structure having a three-dimensional window configured for placement directly over a portion of said lateral wall of the maxillary sinus and to define a surgical site to perform the sinus elevation, said window being sized to receive a dental bur and formed with a patient-specific custom-shaped peripheral edge that defines at least one elongated ledge having a length that extends in a direction along the X-axis of the lateral wall, the ledge having varying surface contours formed in X-Y and Z-X planes extending along the length to correspond to and align with surface contours formed in the X-Y and Z-X planes of the lateral wall at the surgical site, the ledge being configured to provide continuous contact with the lateral wall along its entire length at the surgical site, wherein the ledge includes a variable depth in the Z-X plane and is configured to directly correspond to thickness variations along the Z-X plane of the patient's lateral wall, said window being sized greater than a diameter of the bur to permit movement, guidance and depth control of the bur in three-dimensions along the custom-shaped peripheral edge and surface contours of the window.