# US 12,190,749 B2 · Apparatuses for simulating dental procedures and methods > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,190,749 B2 - Document ID: US12190749B2 - Status: Granted - Kind: B2 - Application number: 17/633,703 - Filed: 2020-08-04 - Published: 2022-10-06 - Granted: 2025-01-07 - Earliest claimed: 2019-08-09 - Assignees: SIMtoLIFE B.V. - Applicants: SIMtoLIFE B.V. - Inventors: Dyon Bode; Dennis Brinkman; Niels Van Den Braber; Karel Van Gelder - Web page: https://patentgrep.com/patent/US12190749B2 ## CPC - A61C 1/00: Dental machines for boring or cutting {; General features of dental machines or apparatus, e.g. hand-piece design} - G09B 23/283: {for dentistry or oral hygiene (G09B23/286 takes precedence)} - A61B 34/10: Computer-aided planning, simulation or modelling of surgical operations - G06F 3/011: {Arrangements for interaction with the human body, e.g. for user immersion in virtual reality (blind teaching G09B21/00)} - G06F 3/0346: with detection of the device orientation or free movement in a three-dimensional [3D] space, e.g. 3D mice, 6-DOF [six degrees of freedom] pointers using gyroscopes, accelerometers or tilt-sensors - G09B 23/00: Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes (in the nature of toys A63H) - A61B 2034/102: {Modelling of surgical devices, implants or prosthesis} - A61B 2034/105: {Modelling of the patient, e.g. for ligaments or bones} - A61C: DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE (non-driven toothbrushes A46B; {tongue scrapers A61B17/24;} preparations for dentistry A61K6/00; preparations for cleaning the teeth or mouth A61K8/00, A61Q11/00) - G09B: EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS (devices for psychotechnics or for testing reaction times A61B5/16; games, sports, amusements A63; projectors, projector screens G03B) - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) ## Abstract A dental procedure simulator includes a support structure and a linkage suspended from the support structure. The linkage is controlled by a computer that is configured to simulate a dental procedure or treatment. A handpiece is coupled to the linkage and configured to be held in a hand of a user and to be manipulated by the user in a workspace (W) in real space. The phenom head is provided with a phantom upper jaw and a phantom lower jaw (14) and is supported by the support structure and arranged in the workspace (W.) The phantom lower jaw is arranged movably relative to the phantom upper jaw. ## Claims ### Claim 1 A dental procedure simulator comprising: a support structure, a display screen, a computer configured to simulate a dental procedure or treatment, a linkage suspended from said support structure, said linkage being controlled by said computer to simulate a medical procedure or treatment by providing haptic force feedback, a handpiece operably coupled to said linkage and configured to be held in a hand of a user and to be manipulated by the user in a predefined workspace (W) of the dental procedure simulator in real space, a phantom upper jaw and a phantom lower jaw movably supported by said support structure and arranged in said workspace (W), wherein said phantom upper jaw is movable relative to said support structure, said dental procedure simulator comprises rotary position sensors configured to sense the position and orientation of said phantom upper jaw and said phantom lower jaw relative to said support structure, said computer being configured to display on said display screen a virtual environment comprising at least one virtual tooth co-located with said phantom upper jaw or with said phantom lower jaw. ### Claim 2 (depends on 1) The dental procedure simulator according to claim 1, wherein said computer is configured to create a virtual environment comprising a virtual handpiece, a virtual upper jaw, and a virtual lower jaw, said computer being configured to display said virtual environment on said display screen, and said computer being configured to: co-locate said virtual handpiece with said handpiece, one or more of co-locate said virtual upper jaw with said phantom upper jaw, and co-locate said virtual lower jaw with said phantom lower jaw. ### Claim 3 (depends on 1) The dental procedure simulator according to claim 1, wherein said phantom lower jaw is arranged movably relative to said phantom upper jaw. ### Claim 4 (depends on 1) The dental procedure simulator according to claim 1, wherein said phantom upper jaw and said phantom lower jaw are provided with one or more recesses for receiving a phantom tooth, and wherein said at least one virtual tooth is co-located on said display screen with one of said one or more recesses for receiving a phantom tooth. ### Claim 5 (depends on 1) The dental procedure simulator according to claim 1, wherein said phantom upper jaw is movable relative to said support structure, wherein said computer is through said rotary position sensors in receipt of the position and orientation of said phantom upper jaw and said phantom lower jaw, and said computer being configured to adjust the orientation and position of said at least one virtual tooth to movement of said phantom upper jaw and of said phantom lower jaw so that said at least one virtual tooth remains co-located on said display screen with said phantom upper jaw or phantom lower jaw when said phantom upper jaw or phantom lower jaw is moved. ### Claim 6 (depends on 1) The dental procedure simulator according to claim 1, wherein said computer is configured to display at least a portion of said virtual upper jaw and a portion of said virtual lower jaw, the computer being configured to co-locate said virtual upper jaw with said phantom upper jaw and to co-locate said virtual lower jaw with said phantom lower jaw on said display screen, also when said phantom upper jaw or said phantom lower jaw is moved. ### Claim 7 (depends on 1) The dental procedure simulator according to claim 1, wherein said phantom lower jaw is suspended from said phantom upper jaw by a hinge mechanism that comprises a four-bar linkage that imitates the movement of a human jaw. ### Claim 8 (depends on 1) The dental procedure simulator according to claim 1, wherein said phantom lower jaw is suspended from said phantom upper jaw to allow movement between an open position and a closed position. ### Claim 9 (depends on 8) The dental procedure simulator according to claim 8, wherein said closed position corresponds to a position for examining the occlusal reduction and wherein said computer is configured to display on a display screen a set of virtual upper teeth for said phantom upper jaw and a set of lower virtual teeth for said phantom lower jaw, thereby allowing visual occlusal examination of the virtual set of teeth in said closed position. ### Claim 10 (depends on 8) The dental procedure simulator according to claim 8, wherein the rotary position sensors are configured for sensing rotation of said phantom upper jaw for each of said one to three degrees of freedom. ### Claim 11 (depends on 1) The dental procedure simulator according to claim 1, wherein the rotary position sensors comprise a position sensor configured to create a signal indicative of the position of said phantom lower jaw relative to said phantom upper jaw. ### Claim 12 (depends on 1) The dental procedure simulator according to claim 1, wherein said phantom upper jaw is suspended from said support structure to allow, rotation in one, two, or three rotational degrees of freedom with the center of rotation for each degree of freedom being located between said phantom upper jaw and said phantom lower jaw. ### Claim 13 (depends on 1) The dental procedure simulator according to claim 1, wherein said phantom upper jaw is suspended from said support structure by a first mechanism that allows said upper jaw to rotate about a first horizontal axis Y that is disposed in said workspace (W) without said first mechanism intruding said workspace (W). ### Claim 14 (depends on 1) The dental procedure simulator according to claim 1, wherein said phantom upper jaw is suspended from said support structure by a second mechanism that allows said phantom upper jaw to rotate about a second horizontal axis X that is disposed in said workspace (W) without said second mechanism intersecting said workspace (W). ### Claim 15 (depends on 1) The dental procedure simulator according to claim 1, wherein said phantom upper jaw is suspended from said support structure by a third mechanism that allows rotation of said phantom upper jaw about a vertical axis Z, without said third mechanism intersecting said workspace (W). ### Claim 16 (depends on 1) The dental procedure simulator according to any claim 1, wherein said phantom upper jaw comprises an upper support member with a removable upper jaw element removably attached thereto, and wherein said phantom lower jaw comprises a lower support member with a removable lower jaw element removably attached thereto. ### Claim 17 (depends on 16) The dental procedure simulator according to claim 16, wherein said removable upper jaw element is a specific upper jaw element that is provided with phantom teeth. ### Claim 18 A dental procedure simulator comprising: a support structure, a display screen, a computer configured to simulate a dental procedure or treatment, a linkage suspended from said support structure, said linkage being controlled by said computer to simulate a medical procedure or treatment by providing haptic force feedback, a handpiece operably coupled to said linkage and configured to be held in a hand of a user and to be manipulated by the user in a predefined workspace (W) of the dental procedure simulator in real space, a phantom upper jaw and a phantom lower jaw movably supported by said support structure and arranged in said workspace (W), said computer being configured to generate an image of the simulated dental procedure for display on a display screen, wherein said dental procedure simulator comprises a partially transparent reflective element arranged to reflect the image from said display screen to the eyes of the user, wherein said workspace (W) is arranged to be visible for the user through said partially transparent reflective element, and wherein said computer is configured to display on said display screen a virtual environment comprising at least one virtual tooth co-located with said phantom upper jaw or with said phantom lower jaw. ### Claim 19 (depends on 18) A dental procedure simulator according to claim 18, configured to reflect said image from said display screen to the eyes of the user by reflection on said partially transparent reflective element and configured to mix said image with a view of said workspace (W) seen by the user through said partially transparent reflective element. ### Claim 20 (depends on 18) A dental procedure simulator according to claim 18, wherein said partially transparent reflective element is a partially transparent mirror or a semi-transparent mirror.