Digital impression instrument for oral cavity

Abstract

The utility model relates to the technical field of medical instruments, and provides an oral cavity digital impression instrument. The oral cavity digital impression instrument comprises a scanning head and a main body, the scanning head is in pluggable connection with the main body, the scanning head is provided with a magnetic part, and the main body is provided with a magnetic sensor and a controller which are electrically connected; the magnetic sensor is used for generating an electric signal according to the sensed magnetic field intensity of the magnetic part and transmitting the electric signal to the controller; and the controller is used for controlling to open or close the scanning function according to the received electric signal. Therefore, whether the scanning head is inserted or not can be automatically identified, and starting and stopping of the scanning function are automatically controlled. And meanwhile, the aging of an optical device caused by operation of the scanning function without inserting the scanning head is effectively avoided, and the service life of the device is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and more specifically, to a digital dental impression device. Background Technology

[0002] In the medical field, digital impression imaging technology is being used more and more widely. The scanning head of a digital impression instrument is frequently removed for disinfection. Scanning with the scanning head removed can lead to unclear scans and accelerate the aging of the optical sensors inside the instrument. Therefore, the scanning function needs to be turned off promptly after the scanning head is removed. However, manually turning off the scanning function is very troublesome and easily forgotten. Therefore, automatically turning off the scanning function of the digital impression instrument when the scanning head is removed is essential. Utility Model Content

[0003] The purpose of this invention is to provide a digital dental impression instrument that can solve the problem of the inability to automatically switch the scanning function on and off in the prior art.

[0004] The embodiments of this utility model are implemented as follows:

[0005] This utility model provides a digital dental impression instrument, which includes a scanning head and a main body. The scanning head is pluggably connected to the main body. The scanning head is equipped with a magnetic component, and the main body is equipped with an electrically connected magnetic sensor and a controller.

[0006] The magnetic sensor is used to generate an electrical signal based on the magnetic field strength of the sensed magnetic component and transmit it to the controller.

[0007] The controller is used to control the scanning function to be turned on or off based on the received electrical signal.

[0008] In an optional embodiment, the magnetic sensor is further configured to generate a high-level signal and transmit it to the controller when it senses that the magnetic field strength of the magnetic component reaches a preset magnetic field strength threshold.

[0009] The controller is also used to enable the scanning function when the high-level signal is received.

[0010] In an optional embodiment, the magnetic sensor is further configured to generate a low-level signal and transmit it to the controller when it senses that the magnetic field strength of the magnetic component is lower than a preset magnetic field strength threshold.

[0011] The controller is also used to control the scanning function to be turned off when the low-level signal is received.

[0012] In an optional embodiment, the main body includes a first component and a second component connected together; the magnetic sensor is mounted on the first component, the controller is mounted on the second component, and the end of the first component away from the second component is used to engage with the scanning head.

[0013] In an optional embodiment, the first component includes a mounting base, a base, and a connector;

[0014] The mounting base is provided with a through hole and a first connecting hole, and the base passes through the through hole;

[0015] One end of the base is closed and the other end is open, and the closed end is provided with a second connecting hole opposite to the first connecting hole;

[0016] The connector passes through the first connection hole and the second connection hole to connect the mounting base to the base.

[0017] In an optional embodiment, one end of the base opening is provided with two grooves, and the magnetic sensor is disposed on the inner wall of one of the grooves.

[0018] In an optional embodiment, the scanning head is a housing, and a fixing member is provided on the inner wall of the scanning head for abutting against the base.

[0019] In an optional embodiment, the fastener includes a first fastener, a second fastener, a third fastener, and a fourth fastener, wherein the first fastener and the third fastener are disposed opposite to each other, and the second fastener and the fourth fastener are disposed opposite to each other.

[0020] In an optional embodiment, the first fixing member is disposed on the left inner wall of the scanning head, the third fixing member is disposed on the right inner wall of the scanning head, the second fixing member is disposed on the upper inner wall of the scanning head, and the fourth fixing member is disposed on the lower inner wall of the scanning head.

[0021] In an optional embodiment, the fourth fixing member is provided with a mounting groove, and the magnetic member is disposed in the mounting groove.

[0022] This utility model provides a digital dental impression device, including a scanning head and a main body. The scanning head and the main body are pluggably connected. The scanning head is equipped with a magnetic component, and the main body is equipped with an electrically connected magnetic sensor and a controller. The magnetic sensor generates an electrical signal based on the magnetic field strength sensed by the magnetic component and transmits it to the controller. The controller controls the scanning function to turn on or off based on the received electrical signal. The advantages of this utility model include: automatically identifying whether the scanning head is inserted and automatically controlling the scanning function to turn on and off. It also effectively avoids aging of optical components caused by running the scanning function without the scanning head inserted, thus extending the service life of the device. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 A schematic diagram of the structure of the digital dental impression device provided in this embodiment of the present invention.

[0025] Figure 2 This is one of the schematic diagrams of the first component structure of the main body of the oral digital impression device provided in the embodiment of this utility model.

[0026] Figure 3 This is the second schematic diagram of the first component structure of the main body of the oral digital impression device provided in this embodiment of the utility model.

[0027] Figure 4 This is a schematic diagram of the scanning head in the dental digital impression instrument provided in an embodiment of the present invention.

[0028] Icons: 100 - Scanning head; 200 - Main body; 210 - First component; 220 - Second component; 211 - Mounting base; 212 - Base; 213 - Connector; 214 - Through hole; 215 - First connecting hole; 216 - Second connecting hole; 217 - Groove; 111 - First fixing component; 112 - Second fixing component; 113 - Third fixing component; 114 - Fourth fixing component; 115 - Mounting slot. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0031] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0032] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0033] Furthermore, the terms "first," "second," and "third" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0034] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0035] Please see Figure 1This is a schematic diagram of the structure of a digital dental impression device provided in an embodiment of the present invention. The digital dental impression device includes a scanning head 100 and a main body 200. The scanning head 100 and the main body 200 are pluggably connected. The scanning head 100 is equipped with a magnetic component, and the main body 200 is equipped with an electrically connected magnetic sensor and a controller. The magnetic sensor generates an electrical signal based on the magnetic field strength sensed by the magnetic component and transmits it to the controller. The controller controls the scanning function to be turned on or off based on the received electrical signal.

[0036] In this embodiment, the magnetic component can be a magnet. A magnetic sensor is a sensor that converts detected magnetic field signals into electrical signals; it can be a Hall effect sensor. The controller is an integrated circuit, which can be a Microcontroller Unit (MCU).

[0037] Because the scanning head 100 is equipped with a magnetic component, the magnetic field strength detected by the magnetic sensor in the main body 200 differs depending on whether the scanning head 100 is inserted into the main body 200 or not. This results in different electrical signals being generated by the magnetic sensor and transmitted to the controller. The controller then uses these received signals to control the scanning function to turn on or off. This allows for automatic identification of whether the scanning head is inserted and control of the scanning function's activation and deactivation. Simultaneously, it effectively prevents optical component aging caused by operating the scanning function without the scanning head inserted, extending the lifespan of the components.

[0038] Optionally, the magnetic sensor is also used to generate a high-level signal and transmit it to the controller when the magnetic field strength of the magnetic component reaches a preset magnetic field strength threshold; the controller is also used to control the scanning function to be started when the high-level signal is received.

[0039] In this embodiment, when the scanning head 100 is inserted into the main body 200, the magnetic component in the scanning head 100 approaches the magnetic sensor in the main body 200. When the magnetic field strength of the magnetic component sensed by the magnetic sensor reaches the preset magnetic field strength threshold, the magnetic sensor will generate a high-level signal and transmit it to the controller. After receiving the high-level signal, the controller will start the scanning function to perform scanning.

[0040] Optionally, the magnetic sensor is also used to generate a low-level signal and transmit it to the controller when the magnetic field strength of the sensed magnetic component is lower than a preset magnetic field strength threshold; the controller is also used to control the scanning function to be turned off when the low-level signal is received.

[0041] In this embodiment, when the scanning head 100 is pulled out from the main body 200, the magnetic component in the scanning head 100 moves away from the magnetic sensor in the main body 200. The magnetic field strength of the magnetic component sensed by the magnetic sensor is lower than the preset magnetic field strength threshold. Then the magnetic sensor will generate a low-level signal and transmit it to the controller. After receiving the low-level signal, the controller will turn off the scanning function to stop scanning.

[0042] Please continue reading. Figure 1 The main body 200 includes a first component 210 and a second component 220 connected together; a magnetic sensor is installed on the first component 210 and a controller is installed on the second component 220; the end of the first component 210 away from the second component 220 is used to engage with the scanning head 100.

[0043] In this embodiment, the second component 220 is generally cuboid and can be used as the handle of the digital dental impression instrument. The first component 210 is fixedly connected to the second component 220. When the scanning head 100 is inserted, the scanning head 100 is connected to the main body 200 for scanning by connecting the first component 210 to the scanning head 100; and when the scanning head 100 is removed, the scanning head 100 is separated from the main body 200 by separating the first component 210 from the scanning head 100 to stop scanning.

[0044] Please see Figure 2 and Figure 3 These are schematic diagrams illustrating two different structures of the first component 210 in the main body 200 provided in this embodiment of the present invention. The first component 210 includes a mounting base 211, a base 212, and a connector 213. The mounting base 211 has a through hole 214 and a first connecting hole 215, through which the base 212 passes. One end of the base 212 is closed, and the other end is open; the closed end has a second connecting hole 216 opposite to the first connecting hole 215. The connector 213 passes through the first connecting hole 215 and the second connecting hole 216 to connect the mounting base 211 and the base 212.

[0045] In this embodiment, the mounting base 211 is generally elliptical and has four first connecting holes 215. The through hole 214 of the mounting base 211 is also elliptical, and the size of the through hole 214 matches the size of the base 212, so that the base 212 passes through the through hole 214 to abut against the mounting base 211.

[0046] The base 212 includes a first body and a second body connected together. The first body is generally elliptical, and the second body is a rectangular plate structure. The first and second bodies are integrally formed. The first body passes through the mounting base 211 and is located on one side of the mounting base 211. The length and width of the second body are greater than the length and width of the first body, and the second body abuts against the other side of the mounting base 211. The second body has four second connecting holes 216, which are opposite to the four first connecting holes 215 on the mounting base 211. A connector 213 connects the base 212 to the mounting base 211 through the four connecting holes. Optionally, the connector 213 can be a screw. Furthermore, one end of the opening of the base 212 has two grooves 217, and a magnetic sensor is disposed on the inner wall of one of the grooves 217.

[0047] Please see Figure 4 This is a schematic diagram of the scanning head 100 in the digital dental impression device provided in this embodiment of the present invention. The scanning head 100 is a housing, and a fixing member is provided on the inner wall of the scanning head 100 for abutting against the base 212. The fixing member includes a first fixing member 111, a second fixing member 112, a third fixing member 113, and a fourth fixing member 114. The first fixing member 111 and the third fixing member 113 are disposed opposite each other, and the second fixing member 112 and the fourth fixing member 114 are disposed opposite each other. Furthermore, the first fixing member 111 is disposed on the left inner wall of the scanning head 100, the third fixing member 113 is disposed on the right inner wall of the scanning head 100, the second fixing member 112 is disposed on the upper inner wall of the scanning head 100, and the fourth fixing member 114 is disposed on the lower inner wall of the scanning head 100. The fourth fixing member 114 is provided with a mounting groove 115, and a magnetic component is disposed within the mounting groove 115.

[0048] In this embodiment, the four inner walls of the scanning head 100 are provided with fixing members extending along the inner walls, which are used to abut against the four outer walls of the first body of the base 212, so as to prevent the scanning head 100 from falling off when it is connected to the body 200.

[0049] Furthermore, the fixing components include a first fixing component 111, a second fixing component 112, a third fixing component 113, and a fourth fixing component 114. The first fixing component 111 and the third fixing component 113 are both hollow quadrangular pyramids. One side of the first fixing component 111 is fixedly connected to the left inner wall of the scanning head 100, and one side of the third fixing component 113 is fixedly connected to the right inner wall of the scanning head 100. The second fixing component 112 has a clip-like structure, and two second fixing components 112 are arranged parallel to each other on the upper inner wall of the scanning head 100. The fourth fixing component 114 is a cuboid, and its bottom surface is fixedly connected to the lower inner wall of the scanning head 100. The fourth fixing component 114 is provided with a mounting groove 115, and a magnetic component is disposed within the mounting groove 115. Optionally, the magnet is glued or clipped into the mounting groove 115.

[0050] In summary, this utility model provides a digital dental impression device, including a scanning head and a main body. The scanning head and the main body are pluggably connected. The scanning head is equipped with a magnetic component, and the main body is equipped with an electrically connected magnetic sensor and a controller. The magnetic sensor generates an electrical signal based on the magnetic field strength sensed by the magnetic component and transmits it to the controller. The controller controls the scanning function to turn on or off based on the received electrical signal. This allows for automatic detection of whether the scanning head is inserted and controls the scanning function to be turned on and off. It also effectively avoids aging of optical components caused by operating the scanning function without the scanning head inserted, thus extending the lifespan of the device.

[0051] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A digital dental impression instrument, characterized in that, The oral digital impression device includes a scanning head and a main body. The scanning head is pluggably connected to the main body. The scanning head is equipped with a magnetic component, and the main body is equipped with an electrically connected magnetic sensor and controller. The magnetic sensor is used to generate an electrical signal based on the magnetic field strength of the sensed magnetic component and transmit it to the controller. The controller is used to control the scanning function to be turned on or off based on the received electrical signal.

2. The digital dental impression instrument according to claim 1, characterized in that, The magnetic sensor is also used to generate a high-level signal and transmit it to the controller when it senses that the magnetic field strength of the magnetic component reaches a preset magnetic field strength threshold. The controller is also used to enable the scanning function when the high-level signal is received.

3. The digital dental impression instrument according to claim 1, characterized in that, The magnetic sensor is also used to generate a low-level signal and transmit it to the controller when it senses that the magnetic field strength of the magnetic component is lower than a preset magnetic field strength threshold. The controller is also used to control the scanning function to be turned off when the low-level signal is received.

4. The digital dental impression instrument according to claim 1, characterized in that, The main body includes a first component and a second component connected together; the magnetic sensor is installed on the first component, the controller is installed on the second component, and the end of the first component away from the second component is used to engage with the scanning head.

5. The digital dental impression instrument according to claim 4, characterized in that, The first component includes a mounting base, a base, and a connector; The mounting base is provided with a through hole and a first connecting hole, and the base passes through the through hole; One end of the base is closed and the other end is open, and the closed end is provided with a second connecting hole opposite to the first connecting hole; The connector passes through the first connection hole and the second connection hole to connect the mounting base to the base.

6. The digital dental impression instrument according to claim 5, characterized in that, Two grooves are provided at one end of the base opening, and the magnetic sensor is disposed on the inner wall of one of the grooves.

7. The digital dental impression instrument according to claim 5, characterized in that, The scanning head is a housing, and a fixing member is provided on the inner wall of the scanning head. The fixing member is used to abut against the base.

8. The digital dental impression instrument according to claim 7, characterized in that, The fasteners include a first fastener, a second fastener, a third fastener, and a fourth fastener, wherein the first fastener and the third fastener are disposed opposite to each other, and the second fastener and the fourth fastener are disposed opposite to each other.

9. The digital dental impression instrument according to claim 8, characterized in that, The first fixing member is disposed on the left inner wall of the scanning head, the third fixing member is disposed on the right inner wall of the scanning head, the second fixing member is disposed on the upper inner wall of the scanning head, and the fourth fixing member is disposed on the lower inner wall of the scanning head.

10. The digital dental impression instrument according to claim 9, characterized in that, The fourth fixing member is provided with a mounting groove, and the magnetic member is disposed in the mounting groove.

Images