EP3958725A1

EP3958725A1 - Oral cavity imaging device

Info

Publication number: EP3958725A1
Application number: EP20733040.8A
Authority: EP
Inventors: Damian SIUPKA MROZ; Lukasz LASSMANN
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-04-20
Filing date: 2020-04-17
Publication date: 2022-03-02
Also published as: WO2020218930A1; PL429702A1

Abstract

An oral cavity imaging device is configured to work with the tip of a dental working tool with a functional instrument on its head, and is characterised according to the invention by the fact that it is a partially open profile in which a socket is formed (1), the shape and depth of which matches the tip shank of a dental working tool. On the section of the upper surface of the shank (2) there is a head (3), in which the compartment (4) is formed, the camera (5) is mounted. In addition, an air channel (7) and a wiring loom channel (8) are opened, upper outlet of the air channel (7) is formed in front of the camera (5), whereby, once the tip of a dental working tool has been inserted into the socket (1), the shank (2) covers part of the shank of the dental working tool. The camera's vision axis (5), once attached, is directed towards the direction of the functional instrument of the tip of a dental working tool. The invention is used in conjunction with existing dental working tool tips such as the turbine, contra-angle handpiece, accelerator handpiece or rectifier.

Description

Oral cavity imaging device

The invention refers to the device for imaging for oral cavity used to monitor the interior of the oral cavity in real time, especially the dentition. The invention is used in conjunction with a known dental working tool's tips - the changeable ending of the dental device, such as a turbine, contra-angle handpiece, accelerator handpiece or rectum.

The standard tips used for dental working tools, tips that are changeable, are turbine, contra-angle handpiece, accelerator handpiece and rectifier. Dental working tool's head - top - are equipped with shank and the head and are connected to the dental unit. Dental working tool tips are equipped with a built-in light source. On the head, on the front surface, there is a functional instrument which performs the functions of these tips. The functional instrument that is placed on the top of it is especially the replacement drill.

Due to the size of the working tips of dental working tools, which is dictated by technical requirements, their use in the oral cavity is associated with the limitation of the field of vision of the area of the oral cavity to be treated.

Dental mirrors are often used to improve observation of the area under treatment. However, the use of dental mirrors as a separate tool requires the free hand of the dentist and the need to promptly interpret the image obtained in the reversed mirror.

In addition, the cooling systems used in dental tools make it difficult to work with a mirror or any other instrument designed to facilitate the viewing of hard-to-reach places.

Another solution to the problem of field of vision limitation is to use micro cameras to visualize the oral cavity. Dental micro cameras are known to be used as separate dental devices or as elements attached to the tips of dental working tools.

From the document US20120040305 it is disclosed a device for monitoring images inside the oral cavity, which is used as an additional device temporarily attached to the tips of dental working tools. This device contains the head with a compartment in which a camera is located and additional optical elements, a light source. The camera is connected through wiring loom running inside the shank with a control-regulating unit. The head has a detachable head fixture on top of a dental working tool and the shank of the imaging device is connected to the shank of the dental tool through a clamping or magnetic mechanism. The head of the imaging device is mounted laterally to the drill axis so that a sharp angle is created between the drill axis and the camera field axis. This device enables the visualisation of the field to be treated in real time. This device allows to visualize the image of the treated field in real time.

The disadvantages of known oral cavity imaging devices, including micro cameras, is the possibility of splashing the camera window through a water jet used during dental treatment. On the other hand, the introduction of optical elements isolating the camera from the interior of the oral cavity deteriorates the recorded image. The use of devices is associated with increasing both the size and weight of the device, especially within the shank of the dental tip.

It was the goal of the invention to provide the dental device for imaging of oral cavity without the disadvantages. The invention-based imaging device solves the above disadvantages.

The invention is an oral cavity imaging device cooperating with a dental working tool's tip and inserted on the top of a tool or within a tool^'s tip, the device is adjusted to be used with a dental working tool the standard dental hand-tool used during dental procedure. According to the invention the device is a partially open profile in which a socket is formed. The shape and depth of the socket - nest or cavity - is in the way that its matches the shank of a dental working tool^'s tip, while on the section of the upper surface of the shank there is a head in which the compartment - chamber is formed in which the camera is mounted. The camera is permanently or firmly fixed in the compartment, so that it can be removed from the compartment. In the head there is an air channel and a wiring loom channel, and the upper air channel outlet is formed before the camera. The compartments in a chamber. After a dental working tool's tip has been seated in the socket, the shank covers part of a dental working tool's shank, while the camera's vision axis, once it has been attached in the compartment, is directed towards the functional instrument of a dental working tool's tip.

The compartment is preferably in the form of a cavity which is led - that means it is performed or provided - through part of the width of the head and to which the inlet opening made in the head on the front side of the head leads. Or the compartment is in the form of a pass-through cavity - in the form of the through-hollow - which is led through the entire width of the head and to which the inlet and outlet opening made in the head leads. Pass-through cavity means through-hole, hollow.

Preferably, a prism is mounted in the compartment before the camera lens is placed.

Preferably, the air channel is routed so that its upper outlet is formed in the compartment or in the head before the inlet to the compartment.

Preferably, the air channel and the wiring loom channel are routed so that their upper outlet is formed in the compartment and the upper outlet of the air channel is formed in the compartment in front of the camera fixed in it. Favorably, the upper outlet of the wiring loom channel is formed in the compartment below or behind the camera fixed in it.

The air channel and the electrical wiring channel are preferably led through the length of the stem.

The head is preferably located on a section of the upper surface of the shank so that, after the tip of the dental working tool is placed in the socket, the head is positioned along the lateral surface of the tip of a dental working tool, preferably parallel to the tip of a dental working tool. The head is preferably made up of two separate parts located on opposite sections of the top surface of the shank so that, once the tip of a dental working tool is seated in the socket, both parts of the head are located along the opposite side of the tip of a dental working tool, preferably parallel to the opposite side of the tip of a dental working tool. Preferably, the compartment is formed in each part of the head so that a cavity is formed in one part of the head which is led through part of the width of the head and into which the inlet opening made in the head on the front side of the head leads, or the compartment in the form of a pass-through cavity led through the entire width of the head to which the inlet and outlet opening made in the head leads.

A transversely arranged through the upper part of the stem on the front side shall preferably be an inspection opening for the outlet of the external light source.

Preferably, the device is made of a flexible material susceptible to reversible deformation. Preferably, it is made of plastic.

Preferably, the camera's vision axis - the vision axis of the camera - crosses the axis of the functional instrument. Preferably, after the tip of a dental working tool has been deposited in the socket, the shank covers more than 50% of the shank of a dental working tool, preferably 70%-80%.

Preferably, the outer surface of the stem has a rough structure.

Preferably, the shape and depth of the socket is adapted to the shank of a dental working tool such as a turbine, contra-angle handpiece, accelerator handpiece or rectifier. Preferably, the air channel and the wiring loom channel run in the formed on the side wall of the sleeve stem.

The device, according to the invention, is an overlay on the tip of dental working tools. The device is designed in such a way that during dental procedures, it ensures that the device works together with the working tip of dental working tools such as turbine, accelerator contra-angle handpiece, contra-angle handpiece, rectifier.

Applying an oral cavity imaging device to the tip of a dental working tool does not involve any technical changes to the working tools. The device is very easy to assemble and disassemble as it has no complicated clamping or snapping mechanisms. Thanks to the depth and shape of the socket corresponding to the tip of a selected dental tool and very thin walls, the devices applied do not hinder the performance of dental procedures with a dental tool. In addition, the roughened outer surface of the device provides a firm grip on the device, especially when the tip of a dental working tool is working. The use of a flexible material with memory of the original shape, especially polymer-based plastic, makes it possible to easily attach the device to the tip of a dental working tool, to securely attach the device to the tip of a dental working tool and at the same time gives the device strength, rigidity and lightness.

An oral cavity imaging device allows for real-time recording of the oral cavity image during dental treatment. The image recorded by the camera is transmitted to a display allowing the dentist to see the treatment field from the point of a dental tool. Thanks to the camera being embedded in the air curtain, after switching on the air source and maintaining the air blast, and in the variant of execution also in the created air compartment, the camera window does not get dirty and splashed with water or vaporized, which is a particular problem of known devices of this type.

Location of the camera in an open compartment makes it possible to easily remove the camera after surgery and thus facilitates the sterilization process of the overlay.

The invention is presented in more detail in the embodiments and examples in fig. 1 where the mouth imaging device is shown in a side view. Fig. 2 shows close-ups on the head formed on the surface of the top wall of the stem, fig. 3 shows the head in a frontal view, fig. 4, 5 and 6 shows a close-up of the head with the formed compartment and the course of channels in the stem having an outlet at the bottom of the compartment in the head, fig. 7 a longitudinal section through the head and a fragment of the stem showing the channel route, fig. 8 shows a close-up of the head with an open compartment formed, for figs. 9 shows a close-up of the head with an open compartment with an outlet adapted to the camera size, fig.10 shows a longitudinal section through the head with fig. 8 and figs. 9, fig.11 shows a view from below on the settling tank in a different variant of the channel routing through the length of the stem, on fig. 9. 12 shows how the device is mounted on the working tip of a dental tool, on fig. 13 and fig. 14 the upper part of the device is presented in another variant of the head divided into parts. Fig. 1 5 shows how to mount the device on the working tip of a dental working tool in a different version, and fig. 16 and 19 shows the upper part of the device with the shown canal guiding in another variant of execution and fig. 17 and 18, a cross section through the head with a shown canal run in a different version is shown in fig. 20 and 21, a cross-section through the head with the air duct course shown in a different version of the compartment is shown.

Example 1

Interior Imaging Device a) Construction.

As shown in fig. 1 device is a partially open profile, in which a settling socket 1 is formed on the inside of the device, whose shape and depth is adapted to the shank of a dental working tool N, as shown on fig. 12, such as a turbine, contra-angle handpiece or accelerator handpiece. The device is made of a temporary deformable plastic, a copolymer of acrylonitrile, styrene and acrylates or nylon, or poly(acrylonitrile-co- butadiene-co-styrene), in 3D printing technology.

The device includes shank 2 and the head 3, with the outer surface of shank 2 having a rough structure at the operator's grip point.

As shown in fig. 1 and 2, in the upper side wall of stem 2, a 2-through inspection opening 9 is created laterally in the stem for the outlet of the light beam. Inspection hole 9 is made in such a way that after the device is placed on the tip of a dental working tool, he light led through the light beams at this end had an outlet through the inspection opening 9. 'Led" means it is perfumed.

As shown in fig. 3-7, at the edge of the length of the top face of stem 2, there is the head 3, in which the compartment 4 is formed in the form of a cavity, which runs through part of the width of the head 3, i.e. it leads into the compartment 4 through an inlet opening on the side of the inspection opening 9. In the compartment 4 there is a camera 5. From the compartment 4 in through the length of stem 2 there is the air channel 7 and wiring loom channel 8. The ducts are routed so that their upper outlet is formed in the bottom of the compartment 4 so that the outlet of air channel 7 is formed in the compartment 4 immediately before the position of camera 5 in the compartment 4 and the outlet of the wiring loom channel 8 immediately after the position of camera 5. The lens 6 of camera 5 in the compartment 4 is situated at the edge of the outlet of the air channel 7. The cables feeding camera 5 are routed in the wiring loom channel 8 and the airflow from the sources of these media is routed through the air channel 7 respectively.

The air flow is directed along the surface of lens 6 of camera 5 to protect it from harmful external factors when working with a dental tool tip in the mouth, such as water particles and biological material. The air flowing out of the canal surrounds the lens under high pressure. This creates an air curtain for lens 6 of camera 5. With this application, the operator can carry out the procedure without having to continuously clean lens 6. The outline of the air channel 7 is cuboidal in shape and runs from the camera compartment 4 along the stem 2 of the device. For fig. 1 and 11 shows a variant of the possibility of guiding the channel through the length of the stem 2. The air channel and the wiring loom channel can be guided in 2 sleeves formed on the side wall of the stem.

As shown in the fig. 8-10, in another variant of the compartment 4, open the compartment 4 led through the entire width of the head 3, in the form of a pass-through socket to which the inlet from the inspection opening 9 and the outlet lead. Camera 5 is fixed in the compartment 4. Through the outlet opening in the compartment 4, camera 5 is placed in the compartment 4. Once the camera has been fixed in the compartment 4, the inlet opening is in the same plane as the lens of camera 6 in the compartment 5. The air channel 7 has its outlet in the bottom of the compartment 4 in place before the position of camera 6 in the compartment 5. The outlet of the wiring loom channel 8 is guided directly behind camera 5 in the compartment 4.

In this variant of the invention, camera 5 is fixed separately in the compartment 4 in such a way that camera 5 is inserted through the outlet until its lens 6 contacts the edge of the outlet of the air channel 7 into the compartment 4. Then the electrical wiring harness at the bottom of camera 5 is connected to wiring loom 8 along the stem and led out in compartment 4 at a distance equal to the length of the camera from the edge of the inlet opening of the compartment. Camera 5 is connected to wiring loom 8 via a direct contact. Camera 5 is manually inserted into the compartment 4 so that the wires at the bottom of the camera are connected to the wires leading out of the compartment 4. In the advantageous variant, the outlet from the compartment is closed with a gasket 10, which has a shape matching the outlet from the compartment 4, as shown in fig. 9. As shown in fig. 9 and 10, in another variant of the open the compartment 4, a 6a prism is located in the compartment at the edge of the outlet from the air channel 7. The prism 6a is an integral part of the head 3. It is an element permanently placed at the inlet to the compartment 4, as the boundary of the compartment 4, and its lower edge is connected to the upper edge of the air channel 7. The prism 6a size fits into the inlet opening of the compartment 4 so that it fills the entire longitudinal section of the inlet opening of the compartment 4 with its surface, thus forming an airtight barrier against the external environment for lens 6 of camera 5. Camera 5 is inserted through the outlet opening into the compartment 4 until lens 6 of camera 5 comes into contact with the prism 6a so that the surfaces of camera 6 and the surface of prism 6 overlap and adhere to each other. The wires of camera 5 are connected to the wiring harness 8, as described above, through a direct contact of the wires. The wiring harness 8 is led into the compartment 4 at a distance from prism 6a equal to the length of the camera and lens.

When the tip of a dental working tool N is inserted into socket 1, shank 2 covers 75% of the shank surface of a dental working tool and the vision axis of camera 5 is directed towards the direction of the functional instrument, the bur of the dental working tool, so that the vision axis of camera 5 intersects with the axis of the functional instrument, which ensures that an image of the bur is recorded. Covering more than 50% of the shank surface of a dental working tool ensures that the device is firmly seated on parts of the tip of a dental working tool by fitting. After the tip of a dental working tool has been placed in socket 1, the head 3 is not in contact with the side surface of the tip of a dental working tool as shown in fig. 12.

The lower inlet of the air channel 7 from the compartment 4 and the signal cables from the camera through the wiring loom channel 8 are connected to suitable external media supply equipment: power supply and the air source: a compressor with a minimum capacity of 601/min at 5 bars. The air supplied by the compressor through air channel 7 delivers compressed air from 5 to 8 bar, which at the beginning of the compartment 4 forms the air the compartment that protects the camera. The compressor is for the dental unit through dedicated hoses that can withstand high enough pressure and a compatible plug/connection to the air channel inlet. The compressor delivers a constant, specified value of compressed air into the canal through the tubing and maintains it from the start of a dental working tool to the end of the work, or maintains a constant high- pressure flow from the connection of a dental working tool tip to the device, or maintains a constant high-pressure flow at the operator's request. Cables routed from camera are terminated with a plug. Using a wiring loom extension cable, they connect to a graphic design that processes the camera signal. The graphics are connected to a control system with at least one display. The systems enabling the images recorded by the camera are known in the state of the art.

b) The way of mounting the device on a dental tool.

As shown in fig. 12 the device with the mounted camera is placed on the tip of a dental working tool N in such a way that the tool is temporarily bent, and the shank of a dental working tool N is covered with it. The parts that are so close to each other are pressed against each other until they become a system that forms a whole from the user's perspective. The operator intuitively places a dental tip on the housing of the device so that the direction of the drill is in line with the direction of the vision field of lens 6 of camera 5 and the inspection hole 9 coincides with the light source outlet of a dental tip. Camera 5 is mounted by the operator through the outlet of the compartment 4 by pressing until the camera lens contacts the compartment border/or prism. Then the compartment is closed by pressing the seal 10 at the end of the exit opening of the compartment 4 as shown in fig. 9.

In the case of using tips of dental working tools equipped with individual light sources, where the diode is located just under the head 3, an inspection hole 9 is made on the shank 2 of the device at the location of a dental working tool diode, which effectively illuminates working area. After the device has been placed on the tip of a dental working tool N, camera 5 is positioned at the side of the tool head, parallel to the side surface of the tool head, which did not disturb the operator when manoeuvring the drill in the mouth. Camera 5 is located at the same height as the drill, which allows for maintaining the alignment and direction of camera 5 lens to the drill. During the dental procedure, the lens 6 of camera 5 is directed at the point of contact between the bur and the surface of the teeth, which is of interest to the operator. Thanks to the well-adjusted focal length of camera 5 the image is crisp and sharp.

When finished, the device is pulled from the tip of a dental tool so that the plug connecting the air wires and the cables for image and air transfer between the unit and the device is disconnected. Then, holding the lower part of the shank of a dental working tool's tip, the device is pulled away by a force pointing in the opposite direction to the force holding the shank of a dental working tool's tip. In this case, the camera is part of the housing and remains in the housing after the treatment is completed and the housing is removed.

In the case of the variant of the compartment 4 in an open manner, after completion of the procedure, the seal 10 is mechanically pulled out of the exit opening of the compartment 4 using a dedicated instrument or manually, in the case of its previous mounting, and then a suitable auxiliary instrument, e.g. a tweezer grabs the rear part of the camera and with a movement 'from the prism' to the exit opening of the compartment 4, camera 5 is pulled out of the compartment. This movement disconnects the contact connection formed in the compartment 4 between the electrical wires from channel 8 and the electrical wires from camera 5.

The same procedure shall be followed when using the device with a different end of a dental working tool, especially a turbine, contra-angle handpiece, accelerator handpiece or rectifier. In any case, the device is a partially open profile in which a socket 1 is formed, the shape and depth of which is matched to the shank of the corresponding tip of a dental working tool. c) Working - functioning of the device integrated in the tip of a dental working tool.

The device allows for real-time recording of the oral cavity image by connecting the wires routed in the channel to a graphic design that converts the camera signal into a signal adapted to the imaging system containing the computer and a display that allows the dentist to see and record the camera view in real time. The entire imaging system integrates with the dental unit. The dental unit is a power source, a source of compressed air, a base for mounting a monitor/display and a controller/computer.

Example 2

The device is constructed as described in example 1, except that the head 3 is made up of two separate parts located on opposite sides of the top of shank 2 in such a way that, once a dental working tool's tip is seated in socket 1, both parts of the head 3 are located parallel the opposite side surfaces of the working tip head of a dental working device, as shown in fig. 13 and 15. In each part of the head 3 the compartment 4 is formed in which the camera 5 is embedded and the air channel 7 and a wiring loom channel 8 are routed from each part of the head 3 through the length of shank 2. Both channels have an outlet to the compartment 4 in the bottom of the compartment 5. In one part of the head 3 the compartment is formed in the form of a cavity into which an inlet hole leads, and in the other part of head the 3 an open compartment 4 is formed into which an inlet and outlet hole leads. It is also possible to make the same variant of the compartment 4 in both parts of the head 3.

Thanks to the use of two cameras, on the left and right side of the tip of a dental working tool, it is possible to accurately record the area of the dentition to be treated, especially in more complicated dental operations.

Example 3

The device is constructed as described in example 2, except that the head 3 is made up of two separate parts located on separate sections of the upper wall of shank 2 in such a way that, once a dental working tool's tip has been seated in socket 1, both parts of the head 3 are located on the lateral opposite top surfaces of the tip of a dental working tool, as shown in fig. 14. The sections of the upper wall of shank 2 on which the parts of the head 2 are seated are unevenly spaced. Both parts of the head 3 have different heights.

Example 4 a) Construction.

As shown in the fig. 16 and 17, the device is constructed as in example 1, except that the air channel 7 is guided only through part of the head 3 and in the upper part of the stem 2. The upper outlet of the air channel 7 is formed outside compartment 4 but in front of the inlet opening to compartment 4 so that the air stream from the air channel 7 is directed outside the compartment but along the surface of lens 5 of camera 4 or along the prism 6a.

At the bottom of the device, the air channel 7 inlet is formed in the middle of the shank 2. The wiring loom channel 8 is formed in the head 3 and leads into the compartment 4 and its outlet is formed directly behind the head 3.

Another variant of an open compartment design with an inlet and outlet opening, as shown in the fig. 18, the wiring loom channel is led through part of the width of the head 3 and has an outlet under the outlet from the compartment 4. The wiring loom 8 is inserted into the compartment 4 in its lower surface at a distance equal to the length of the camera mounted so that the front wall of the lens is parallel to the rear wall of the prism 6a, which is an integral part of the housing and is located at the beginning of the inlet opening to the compartment 4. The upper edge of the air channel is located under the lower edge of the front wall of the prism.

In the case of the variant of an open compartment design, it is also possible to lead out the air channel in a different way: as shown in fig. 18 and fig. 21, the air channel 7 outlet is formed outside the compartment 4 but in front of the inlet opening to the compartment 4 so that the air stream from the air channel 7 is directed outside the compartment but along the surface of lens 6 of camera 4 or along the prism 6a.

The airflow is directed along the plane of lens 6 of camera 5 or 6a prism to protect it from harmful external factors when working with a dental tool tip in the mouth, such as water particles and biological material. The air flowing out of the channel flows through the lens under high pressure, which creates an air curtain for camera 5 lens 6. With this application, the operator can carry out the procedure without having to clean lens 10 continuously. b) The way of mounting the device on a dental tool.

The device with mounted camera 5 is placed on a dental working tool's tip as described and shown in example 1, except that the air channel end 7 is connected via wires directly to the compressor and the wiring of camera 8 via the wiring loom channel 8 is connected directly to the signal processing system. The air channel 7 with its lower inlet in the middle of shaft 2 has a separate track than the camera wiring path wiring loom channel 8.

Example 5 a) Construction

As shown in the fig. 19 the device is constructed like in example 1 except that the air channel 7 and wiring loom channel 8 are routed through the length of stem 2. The air channel 7 is routed so that its upper outlet is formed in front of the compartment 4 immediately before camera 5, as shown in fig. 20. Wiring loom channel 8 is routed so that its upper outlet is formed in the compartment 4 of camera 5 directly behind camera 5's position. The air coming out of the channel is orbiting the lens under high pressure, forming an air curtain for lens 6 of camera 5.

The way the device is mounted on a dental working tool's tip and the interaction between the device and the tip of a dental working tool is carried out in the same way as described in example 1.

Claims

1. An oral cavity imaging device adjusting to a tip of a dental working tool with a functional instrument on its top and comprises a shank and a head with an attached camera to which a wiring loom is performed, characterised in that it is in a form of partially open profile in which a socket (1) is formed, the shape and depth of which is configured to a shank of a tip of a dental working tool, wherein on the upper surface of the shank (2) the head (3) is located, into which a compartment (4) is formed in which the camera (5) is mounted, and in addition, in the head (3) an air channel (7) and a wiring loom channel (8) are opened, while upper outlet of the air channel (7) is formed in front of the camera (5), whereby, once a tip of a dental working tool is inserted into the socket (1), the shank (2) covers part of the shank of a dental working tool, while the camera's (5) vision axis, after attached it, is directed towards the direction of a functional instrument on the top of a dental working tool.

2. The device according to claim 1, wherein the compartment (4) has the form of a cavity which is led through part of the width of the head (3) and into which an inlet opening made in the head (3) on the front side of the head (3) leads, or the compartment (4) has a form of a through-hollow socket which is led through the entire width of the head (2) and into which the inlet and outlet opening made in the head (3) leads.

3. The device according to claim 1 or 2, wherein a prism (6a) is mounted in the compartment (4) before the camera (5) is placed.

4. The device according to claim 1 or 2 or 3, wherein the air channel (7) is performed in the way that its upper outlet is formed in the compartment (4) or in the head (2) before the inlet to the compartment (4).

5. The device according to claim 1 or 2 or 3, wherein the air channel (7) and a wiring loom channel (8) are performed in the way that its upper outlet is formed in the compartment (4), while in front of the mounted camera (5) there is formed the upper outlet of the air channel (7) in the compartment and, preferably, the upper outlet of the wiring loom channel (8) is formed in the compartment (4) below or behind the mounted camera (5).

6. The device according to any of claim 1-5, wherein the air channel (7) and the wiring loom channel (8) are performed through the length of the stem (2).

7. The device according to any of claim 1-6, wherein the head (3) is positioned within a section of the upper surface of the shank (2) in such a way that, after a dental working tool's tip is inserted in the socket (1), the head (3) is positioned along the lateral surface of the top of a dental working tool's tip, preferably parallel to the top of a dental working tool's tip.

8. The device according to any of claim 1-7, wherein the head (3) is made up of two separate parts located on opposite sides of the upper surface of the shank (2) in such a way that, after a dental working tool's tip is inserted in the socket (1), both parts of the head (3) are located along the opposite side of the head of a dental working tool's tip, preferably parallel to the opposite side of the top of a dental working tool's tip.

9. The device according to any of claim 1-8, wherein in the upper part of the shank (2), on the front side, there is a transversely formed a through-hole (9) for the outlet of the external light source.

10. The device according to any of claim 1-9, wherein it is made of a flexible material susceptible to reversible deformation.

11. The device according to claim 1-10, wherein the camera's (5) video axis crosses the axis of the functional instrument.

12. The device according to any of claim 1-11, wherein after placing a dental working tool's tip in the socket (1), the shank (2) covers more than 50% of a dental working tool's tip, preferably 70%-80%.

13. The device according to any of claim 1-12, wherein the external surface of the stem (2) has a rough structure.

14. The device according to any of claim 1-13, wherein the shape and depth of the socket (1) matches the shank of a dental working tool's tip, such as a turbine, contra- angle handpiece, accelerator handpiece, or rectifier.

15. The device according to claim 6, wherein the air channel and the wiring loom channel is performed in a sleeve formed on the side wall of the stem (2).

16. The device according to claim 8, wherein the compartment (4) is formed in each part of the head (3) in such a way that in one part of the head (3) the compartment (4) is formed in the form of a cavity which is performed through part of the width of head (3) and to which the inlet opening is provided that is made in the head (3) on the front side of the head (3), or the compartment (4) in the form of a through-hollow socket which is performed through the entire width of the head (2) and to which the inlet and outlet opening is made in the head (3).

17. The device according to claim 10, wherein it is made of plastic.