Granted Patent B2

US 12,740,833 · App. 17/449,842 · Granted Sep 22, 2026

Inventor: Michael J Hartman (Lewisberry, PA)

Assignee: Digital Provisionalization Technologies, Inc.

A61B34/20A61B1/24A61C13/0004A61B17/1673A61B2034/2057A61B2034/2072

Abstract

Claims (29)

1 . An oral fixture for use in a dynamic navigation system for oral and maxillofacial surgery, comprising:

a tracker arm, a tracker arm mount, and at least one fastener;

the tracker arm comprising a threaded portion attached by a connecting arm to the tracker arm mount,

the threaded portion being configured to receive to an optical tracking device for dynamic navigation;

the tracker arm mount having a body comprising a top surface and an inner surface designed from computed tomography (CT) corresponding with an outer surface contour of the buccal surface of a jawbone specific to a patient, a plurality of receiving slots configured to receive tabs from dental device components, and a plurality of apertures positioned to receive fasteners while avoiding vital anatomical structures and planned implant locations, wherein the body is configured to fit on the outer surface contour of the jawbone;

at least one aperture of the plurality of apertures adapted to receive a fastener for attachment of the oral fixture to the jawbone, wherein the tracker arm is adapted to be attached to the jawbone via the tracker arm mount and fastener;

wherein the aperture adapted to receive the fastener for attachment of the oral fixture to the jawbone is monolithically formed with the tracker arm and tracker arm mount;

wherein the fastener is capable of engaging the full thickness of the jawbone for secure temporary fixation of the tracker arm and tracker arm mount during oral and maxillofacial surgery.

2 . The oral fixture of claim 1 , further comprising:

a dental device comprising a plurality of tabs, the tabs corresponding to the receiving slots in the body for connecting the dental device to the body tracker arm mount.

3 . The oral fixture of claim 2 , wherein the dental device comprises an occlusal positioning device comprising a prosthesis having negative tooth impressions; the tabs extending outward, for connection to the receiving slots;

the occlusal positioning device having an undersurface; the undersurface comprising contours corresponding with a top surface of a patient's teeth.

4 . The oral fixture of claim 3 , wherein the occlusal positioning device further comprises a plurality of verification window apertures; the verification window apertures disposed in the occlusal positioning device to ensure proper seating of the occlusal positioning device on the patient's teeth.

5 . The oral fixture of claim 4 , wherein the tabs are insertable into the corresponding receiving slots via a pin to join the body of the tracker arm mount and the dental device and to seat the dental device onto the patient's teeth; the patient's teeth being partially viewable through the verification window apertures to confirm a predetermined position.

6 . The oral fixture of claim 5 , further comprising an ultraviolet light source, a patient tracker, an instrument tracker, at least one stereotactic camera, and a dynamic navigation unit;

wherein the oral fixture is fixated to the jawbone and the patient tracker is secured onto the tracker arm; the ultraviolet light source is reflected off of the patient tracker and the instrument tracker; the patient tracker and the instrument tracker in data communication with the at least one stereotactic cameras to generate camera data; the stereotactic camera data configured to transmit the camera data to a dynamic navigation unit.

7 . The oral fixture of claim 6 , further comprising a monitor in data communication with a processor of the dynamic navigation system; the monitor configured to display the camera data.

8 . The oral fixture of claim 6 , wherein the tracker arm mount is based on one of an intra oral scan or a digital tooth impression; and having a guide tube for accepting a fixation screw to provide anchorage into the underlying jawbone.

9 . The oral fixture of claim 1 , wherein the fastener is a screw capable of engaging the full thickness of a jawbone.

10 . The oral fixture of claim 1 , wherein the top surface of the body of the tracker arm mount is configured as a reference for jawbone leveling.

11 . An oral fixture for oral and maxillofacial surgery, comprising:

a tracker arm and a tracker arm mount;

the tracker arm comprising a threaded portion for receiving an optical tracking device for dynamic navigation guidance;

the tracker arm mount having at least one aperture for receiving a fastener adapted to be attached to the buccal surface of a jawbone, wherein the is directly affixed to the jawbone via the tracker arm mount with the fastener on the end opposite the threaded portion;

wherein the aperture is monolithically formed with the tracker arm and tracker arm mount;

wherein the fastener is capable of engaging the full thickness of the jawbone for secure temporary attachment during surgery;

the tracker arm mount having a body designed from computed tomography (CT) customized to fit said jawbone;

the tracker arm mount having at least one receiving slot configured to receive an occlusal positioning device disposed on the jawbone.

12 . The oral fixture of claim 11 , wherein the body of the tracker arm mount is configured as a reference for jawbone leveling.

Assignments (1)

Continuity (2)

References Cited (32)