WO2024184897A1

WO2024184897A1 - Dental device and system

Info

Publication number: WO2024184897A1
Application number: PCT/IL2024/050256
Authority: WO
Inventors: Matan SHABAT
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-03-09
Filing date: 2024-03-09
Publication date: 2024-09-12
Anticipated expiration: 2025-09-09
Also published as: IL301288A

Abstract

A system for identifying location of dental bur tip during use, the system comprises: a dental handpiece for actuating a dental bur, a position sensor for continuously monitoring the location of the dental bur tip.

Description

DENTAL DEVICE AND SYSTEM

FIELD OF THE INVENTION

The present invention relates to a device and system for monitoring the position of a dental bur during use and in particular, to such a device and system wherein the position of the dental bur is provided with reference to anatomical locations with augmented reality imaging.

BACKGROUND OF THE INVENTION

Many dental procedures such as root canal, implant, fillings, commonly utilize a drills or dental handpiece to perform necessary procedures. Such dental drills and/or handpiece is used to drill within the tooth, for example during root canal procedures or while treating dental carries. Similarly dental drills are used to drill within the jaws in preparation for the introduction of a dental implant.

During such procedures the dental practitioner oftentimes works "blindly" in that the exact location of the drilling bur and/or tip is not readily visible. Accordingly, a practitioner may therefore miss and/or overshoot a targeted area or tissue.

For example, during a root canal, for example as shown in FIG. 1 A, a practitioner has to be very careful not to transcend the root apex (6) of the canal (4), with the tool and/or bit and/or file (5) used to shape and evacuate the root canal (4) of a tooth (2).

For example, during dental implant placement, for example as shown in FIG. IB, a practitioner has to be careful to properly place an implant (10) in the correct location and orientation within the bone (12).

SUMMARY OF THE INVENTION

While the use of tools and medical imagery of the treatment area prior to undertaking a procedure does facilitate planning and visualizing, however, in real time, during the treatment, a practitioner cannot readily the location of the dental tool relative to the treated tooth and/or tissue. For example, as the tool shapes a root canal or drills within the jawbone to allocate a dental implant therein, the distal tip of the bur or drill bit is not visible to the practitioner. There is an unmet need for, and it would be highly useful to have, a system and device for facilitating dental procedures by readily making the distal tip of a dental drill or bur visible to a practitioner within the surrounding treatment area.

Embodiments of the present invention provide a device and system that generates an image rendering that is reflective of a real time location and orientation of at least a portion of a dental tool for example including but not limited to one of a bur and/or drill bit and/or file or the like, wherein the tools is associated with a dental handpiece within a treatment tissue anatomy for example including but not limited to a tooth, root canal, jaw bone, or the like anatomy.

In a preferred embodiment the image rendering of the dental tool is provided of a distal portion of the dental tool within the anatomy.

Within the context of this application the term dental tool refers to a dental drill, and/or bur, and/or file or the like that is optionally but preferably functionally associated with a dental handpiece.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The materials, methods, and examples provided herein are illustrative only and not intended to be limiting.

Implementation of the method and system of the present invention involves performing or completing certain selected tasks or steps manually, automatically, or a combination thereof.

BRIEF DESCRIPTION OF THE DRAWINGS

The invention is herein described, by way of example only, with reference to the accompanying drawings. With specific reference now to the drawings in detail, it is stressed that the particulars shown are by way of example and for purposes of illustrative discussion of the preferred embodiments of the present invention only, and are presented in order to provide what is believed to be the most useful and readily understood description of the principles and conceptual aspects of the invention. In this regard, no attempt is made to show structural details of the invention in more detail than is necessary for a fundamental understanding of the invention, the description taken with the drawings making apparent to those skilled in the art how the several forms of the invention may be embodied in practice.

In the drawings: FIG. 1 A is a schematic illustrative diagram of root canal procedure;

FIG. IB is a schematic illustrative diagram of a dental implant placement procedure;

FIG. 2 is a schematic block diagram of an exemplary device and system according to embodiments of the present invention;

FIG. 3 is a schematic illustrative diagram of an exemplary device and system according to embodiments of the present invention;

DESCRIPTION OF THE PREFERRED EMBODIMENTS

The principles and operation of the present invention may be better understood with reference to the drawings and the accompanying description.

The following figure reference labels are used throughout the description to refer to similarly functioning components are used throughout the specification hereinbelow.

2 tooth;

4 root canal;

6 root apex;

5, 15 dental tool;

10 dental implant;

12 bone /jawbone;

50 auxiliary devices;

100 device;

101 system;

102 magnetic field/flux sensor;

104 imaging sensor;

105 dental tool/bur/drill bit/file;

105d distal end tool;

110 electronics circuitry;

120 sensor module;

150 ring device;

200 augmented reality (AR) system; FIG. 1A shows a tooth 2 that is undergoing a root canal procedure where a practitioner evacuates the root canals 4 along its length until it reaches the apex 6 without transcending and/or crossing the apex 6. The evacuation process is performed with optional dental tools 5, for example including files, drills, burs or the like that may be utilized with an automated with a dental handpiece or manipulated manually.

The root canal procedure generally includes removing at least a portion of the tooth crown to expose the canal system 4, followed by the extraction of the contents from the one or more canals 4 of the tooth 2. The canals 4 are then generally subjected to mechanical shaping operations, such as reaming or filing, with optional dental tool 5, in order to reduce and/or remove various irregularities within the canal, and to prepare the canal to receive a filling material.

In standard root canal procedures the distal tip of tool 5 is not readily visible during the procedure especially while the tool is within the canal 4. Accordingly, as tool 5 is advanced within canal 4 and progresses distally toward apex 6 the distal tip of tool 5 is not visible to the practitioner. Furthermore, as tool 5 is manipulated within the canal 4 the practitioner performing the procedure does not have the visual means to visualize the surrounding tissue while the tool is manipulated within the canal. Although a practitioner can visualize the treatment area with various images obtained prior to the initiation of the treatment, during the advancement of tool 5 the practitioner is blind to the advancement of the tool, unless the practitioner stops obtains an image and moves forward.

Accordingly, embodiments of the present invention provide a system 101 and device 100 that allows for substantially real time imaging of the root canal during the procedure itself, wherein both the utilized tool , for example a file and/or a drilling bur, and the surrounding treatment area, for example the tooth 2 and/or canal 4 and/or apex 6, are rendered readily visible as the tool is manipulated within the treatment tissue.

FIG. IB, shows a schematic illustration of placement of a dental implant anchor 10 within a jawbone 12 with the use of a dental drill 15. As described above with respect to a root canal procedure, during the drilling phase of the jawbone 12 to place a dental implant anchor 10 a practitioner is blind to the surrounding tissue and how the drill bit 15 is advancing within the surrounding tissue. The orientation of the dental implant anchor 10 is set by the positioning of the drill bit 15 within the jawbone 12.

Accordingly, embodiments of the present invention provide a system 101 and device 100 that allows for substantially real time imaging of the advancement of the dental drill bit 15 as it transcends the jawbone 12, during the procedure itself, therein allowing for ensuring proper placement and orientation of the implant anchor 10 within the bone 12.

FIG. 2 shows a box diagram of system 101 and device 100 that facilitates for substantially real time viewing of dental procedures with a dental handpiece as the tool is manipulated within the surrounding tissue.

System 101 comprises device 100 provided in the form of a dental handpiece that features a tool 105, that is functionally associated with an augmented reality (AR) system 200. Optionally and most preferably system 101 further comprises at least one or more ring member 150 that is functionally associated with device 100. Optionally, system 101 may be further associated with optional auxiliary devices 50.

In embodiments system 101 comprises device 100 that is functionally associated with and/or in communication with at least one or more auxiliary device 50, and an AR system 200. Optionally auxiliary device 50 may provide for obtaining or otherwise capturing a medical imagery of the treatment area and communicating the same to AR system 200.

In embodiments auxiliary device 50 may for example include but is not limited to at least one or more selected from: a smartphone, a mobile processing and communication device, imaging device, medical imaging device, MRI images, X- ray images, CT images, server, computer, medical imagery database center, medical history database center, dental equipment, intraoral scanner, the like or any combination thereof.

In embodiments AR system 200 is configured to provide a user, for example a dental practitioner, with additional information and visualization of device 100 and in particular tool 105 in the context of its surrounding environment, most preferably treatment area such as root canal, an example of which is depicted in FIG.1A and/or implant site as schematically illustrated in FIG. IB. For example, an augmented reality system 200 provides for indicating and/or conveying to a user, for example a dental practitioner, a substantially real time image of the location and orientation of a distal end of tool 105 within the oral anatomy within it is utilized. Optionally the image of the treatment site is based on a-priori obtained medical imagery of the treatment area for example with an auxiliary device 50.

In embodiments AR system 200 may be provided in optional forms for example including but not limited to computer, display device, glasses, wearable head gear, so as to convey to a user the location of the dental tool 105 in relation to the treatment area within which it is used.

In embodiments device 100 is optionally but preferably provided in the form of a dental handpiece tooling device, a schematic illustration of which is shown in FIG. 3. Device 100 is preferably fit with the required electronics circuitry module 110 to render it functional, a detailed account of which for the sake of brevity is not detailed herein.

Device 100 in the form of a dental handpiece is preferably associated with a tool 105 for example in the form of a bur, and/or drill and/or file or the like dental tool.

In embodiments tool 105 may comprise at least one sensor of a sensor module 120 that is preferably configured to facilitate identification of a distal end 105d of tool 105, for example as shown in FIG. 3. Preferably the sensor renders tool 105 and in particular distal end 105d visible within system 101, and in particular to AR system 200, so as to allow for visualizing the position, orientation and/or advancement of tool 105 within the context of and/or with respect to the treatment site tissue.

In embodiments sensor module 120 may be directly and/or indirectly associated with tool 105 by wired and/or wireless couplers. Sensor module 120 may for example comprise at lest one sensor for example including but not limited to a pressure sensor 122, piezoelectric sensor 124, infrared sensor 126, temperature sensor 128, magnetic flux sensor 102, imaging sensor 104, the like sensor or any combination thereof.

In embodiments, sensor module 120 and any one or more sensors thereof may be configured to relay details about device 100 and/or tool 105 as it is utilized so as to allow system 101 to determine the location, orientation and position of tool 105 and/or device 100 as it is used within the treatment tissue.

Preferably device 100 comprises a magnetic field and/or flux sensor 102 that is preferably configured to facilitate determining the position, orientation and/or location of tool 105 by ascertaining change in magnetic field and/or flux as tool 105 is used within the treatment tissue for example a root canal procedure, FIG. 1A, or dental implantation procedure, FIG. IB. Most preferably such positional and/or location data is communicated to AR system 200 so as to be displayed in substantially real time to the practitioner utilizing device 100 and/or tool 105.

Preferably device 100 comprises an imaging sensor 104 that is preferably configured to facilitate determining the position, orientation and/or location of tool 105 by ascertaining a substantially real-time image of tool 105 during its use within the treatment tissue for example a root canal procedure, FIG. 1A, or dental implantation procedure, FIG. IB. Most preferably such positional and/or location data is communicated to AR system 200 so as to be displayed in substantially real time to the practitioner utilizing device 100 and/or tool 105. In embodiments imaging sensor 104, may for example be provided in the form of an infrared imaging sensor and/or camera. In embodiments imaging sensor 104, may for example be provided in the form of an imaging sensor and/or camera.

In embodiments system 101 comprises a ring member 150, a schematic nonlimiting example of which is shown in FIG. 3. Optionally ring 150 may be provided in the form of a magnetic field ring configured to generate a magnetic field. Most preferably, ring member 150 may be provided as adjunct device that may be associated over an external surface of a tooth, for example in the form of a holding ring and/or clamp that is used with a rubber dam utilized to isolate a treatment area during root canal procedure. Optionally such ring member 150 may be fit over an external surface of a tooth and an internal surface and/or portion of a tooth. Optionally ring member 150 may be fit over an internal surface and/or portion of a tooth.

In some embodiments, ring member 150 may configured such that it may be fit across an edentulous space (area devoid of teeth), such that is it clamped along a portion of the jawbone, for example between two teeth or the like. Optionally , ring member may be configured in the form of a drill guide and/or denture.

In embodiments ring member 150 may feature a magnetic field ring featuring a magnetic domains in at least two axis and more preferably in three axis.

In embodiments ring member 150 preferably interfaces with tool 105 such that ring member is capable of detecting the orientation and position of tool 105 relative to ring member 150 so as to facilitate communication the position and/or orientation of tool 105 within the treatment site and/or tissue which may be displayed and/or conveyed to a practitioner with AR system 200.

In embodiments system 101 utilizes AR system 200 provides for overlying and/or combining the details of the substantially real time data provided from device 100 about the position, orientation and location of tool 105, for example as facilitated with ring member 150, with medical imagery data of the treatment site most preferably provided with optional auxiliary device 50, wherein the data is merged and/or overlayed so as to convey to the practitioners the substantially realtime position of tool 105 within the treatment area. For example, with respect to root canal procedure, schematically shown in FIG. 1A, as a tool 105 advances within canal 4 toward apex 6, a practitioner can visually monitor the advancement of tool 105 so as to ensure that apex 6 is not transcended. Similarly, during dental implant anchor 10 placement, FIG. IB, system 101 preferably provides for relaying images of tool 105 as it drills within the jawbone ensuring that tool is advanced as intended.

In embodiments system 101 may be further utilized to convey to a practitioner working lines and/or guidelines so as to visually reflect how tool 105 should be advanced within the treatment tissue so as to ensure proper placement of a dental implant 10, for example, or to properly follow the root canal 4 without injuring surrounding tissue.

As used herein the term “about” refers to +/-10 %.

The terms "comprises", "comprising", "includes", "including", “having” and their conjugates mean "including but not limited to". The term “consisting of’ means “including and limited to”. The term "consisting essentially of' means that the composition, method or structure may include additional ingredients, steps and/or parts, but only if the additional ingredients, steps and/or parts do not materially alter the basic and novel characteristics of the claimed composition, method or structure.

The word “exemplary” is used herein to mean “serving as an example, instance or illustration”. Any embodiment described as “exemplary” is not necessarily to be construed as preferred or advantageous over other embodiments and/or to exclude the incorporation of features from other embodiments. The word “optionally” is used herein to mean “is provided in some embodiments and not provided in other embodiments”. Any particular embodiment of the invention may include a plurality of “optional” features unless such features conflict.

As used herein, the singular form "a", "an" and "the" include plural references unless the context clearly dictates otherwise. For example, the term "a compound" or "at least one compound" may include a plurality of compounds, including mixtures thereof.

Throughout this application, various embodiments of this invention may be presented in a range format. It should be understood that the description in range format is merely for convenience and brevity and should not be construed as an inflexible limitation on the scope of the invention. Accordingly, the description of a range should be considered to have specifically disclosed all the possible subranges as well as individual numerical values within that range. For example, description of a range such as from 1 to 6 should be considered to have specifically disclosed subranges such as from 1 to 3, from 1 to 4, from 1 to 5, from 2 to 4, from 2 to 6, from 3 to 6 etc., as well as individual numbers within that range, for example, 1, 2, 3, 4, 5, and 6. This applies regardless of the breadth of the range.

Whenever a numerical range is indicated herein, it is meant to include any cited numeral (fractional or integral) within the indicated range. The phrases “ranging/ranges between” a first indicate number and a second indicate number and “ranging/ranges from” a first indicate number “to” a second indicate number are used herein interchangeably and are meant to include the first and second indicated numbers and all the fractional and integral numerals therebetween.

In those instances where a convention analogous to "at least one of A, B, and C, etc." is used, in general such a construction is intended in the sense one having skill in the art would understand the convention (e.g., "a system having at least one of A, B, and C" would include but not be limited to systems that have A alone, B alone, C alone, A and B together, A and C together, B and C together, and/or A, B, and C together, etc.). It will be further understood by those within the art that virtually any disjunctive word and/or phrase presenting two or more alternative terms, whether in the description, claims, or drawings, should be understood to contemplate the possibilities of including one of the terms, either of the terms, or both terms. For example, the phrase "A or B" will be understood to include the possibilities of "A" or "B" or "A and B."

As used herein the term "method" refers to manners, means, techniques and procedures for accomplishing a given task including, but not limited to, those manners, means, techniques and procedures either known to, or readily developed from known manners, means, techniques and procedures by practitioners of the chemical, pharmacological, biological, biochemical and medical arts.

There are many inventions described and illustrated herein. The present inventions are neither limited to any single aspect nor embodiment thereof, nor to any combinations and/or permutations of such aspects and/or embodiments. Moreover, each of the aspects of the present inventions, and/or embodiments thereof, may be employed alone or in combination with one or more of the other aspects of the present inventions and/or embodiments thereof. For the sake of brevity, many of those permutations and combinations will not be discussed separately herein.

While the invention has been described with respect to a limited number of embodiment, it is to be realized that the optimum dimensional relationships for the parts of the invention, to include variations in size, materials, shape, form, function and manner of operation, assembly and use, are deemed readily apparent and obvious to one skilled in the art, and all equivalent relationships to those illustrated in the drawings and described in the specification are intended to be encompassed by the present invention.

Therefore, the foregoing is considered as illustrative only of the principles of the invention. Further, since numerous modifications and changes will readily occur to those skilled in the art, it is not described to limit the invention to the exact construction and operation shown and described and accordingly, all suitable modifications and equivalents may be resorted to, falling within the scope of the invention.

It should be noted that where reference numerals appear in the claims, such numerals are included solely or the purpose of improving the intelligibility of the claims and are no way limiting on the scope of the claims.

Having described a specific preferred embodiment of the invention with reference to the accompanying drawings, it will be appreciated that the present invention is not limited to that precise embodiment and that various changes and modifications can be effected therein by one of ordinary skill in the art without departing from the scope or spirit of the invention defined by the appended claims.

It is appreciated that certain features of the invention, which are, for clarity, described in the context of separate embodiments, may also be provided in combination in a single embodiment. Conversely, various features of the invention, which are, for brevity, described in the context of a single embodiment, may also be provided separately or in any suitable sub-combination or as suitable in any other described embodiment of the invention. Certain features described in the context of various embodiments are not to be considered essential features of those embodiments, unless the embodiment is inoperative without those elements.

Although the invention has been described in conjunction with specific embodiments thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art. Accordingly, it is intended to embrace all such alternatives, modifications and variations that fall within the scope of the appended claims.

Citation or identification of any reference in this application shall not be construed as an admission that such reference is available as prior art to the invention.

Section headings are used herein to ease understanding of the specification and should not be construed as necessarily limiting.

While the invention has been described with respect to a limited number of embodiments, it will be appreciated that many variations, modifications and other applications of the invention may be made.

Claims

What is currently claimed is:

1) A system for identifying location of dental bur tip during use, the system comprising: a) a dental handpiece for actuating a dental bur ; i) the dental handpiece having a position sensor for continuously monitoring the location of the dental bur tip; and b) an augmented reality device.

2) The system of claim 1 wherein the position sensor is an imaging sensor.

3) The system of claim 1 wherein the position sensor is a magnetic field sensor.

4) The system of claim 1 wherein the position sensor is a magnetic flux sensor.

5) The system of claim Iwherien the dental handpiece further comprises an imaging device.

6) The system of claim 1 wherein the dental handpiece further comprises an imaging sensor.

7) The system of claim 1 wherein the dental handpiece further comprises a sensor module comprising at least one sensor selected from: temperature sensor, infrared sensor, pressure sensor, piezoelectric sensor, or any combination thereof.

8) The system of claim 1 wherein the dental handpiece is associated with a dental bur and/or file that features a magnetic flux sensor.

9) The system of claim 1 further comprising a magnetic field sensing ring for associating with a portion of the treatment area and/or tooth.

10) The system of claim 9 wherein the sensing ring is associated along an external surface of the treated tooth.

11) The system of claim 9 wherein the sensing ring is associated with an internal surface of the treated tooth.

12) The system of claim 1 further comprising an auxiliary device selected from a medical imaging device.

13) The system of claim 12 wherein the medical imaging device is selected from: X- Rays, CT scan, MRI, ultrasound imaging device, or any combination thereof.

14) The system of claim 12 further comprising an auxiliary processing device selected from of or more of the group comprising: a computer, mobile imaging and processing device, smartphone, server, mobile communication and processing device.