Scanning head of scanner, scanner and oral cavity scanning equipment

Abstract

The utility model provides a scanning head of a scanner, the scanner and oral cavity scanning equipment, the scanning head of the scanner comprises a shell and a fluid jet module, the shell is provided with an inner cavity, a scanning port communicated with the inner cavity is formed in the front end of the shell, and the fluid jet module is arranged on the shell and used for guiding fluid to be jetted to the outer side from the inner side of the scanning port. According to the scanning head of the scanner provided by the embodiment of the invention, the fluid jet module is arranged on the shell, and the fluid jet module is utilized to guide the fluid to flow towards the scanning port, so that saliva can be flushed away from the scanning port by the fluid, and the saliva can be flushed away from the inner cavity of the scanner; the risk that saliva drips into the inner cavity of the scanning head to pollute the camera of the scanner is reduced or avoided, so that the scanning host can record clear images, the scanning time for obtaining the clear images is shortened, the scanning efficiency is improved, the data processing equipment can obtain accurate tooth data, and the user experience is improved. Therefore, a relatively accurate digital impression is generated.

Description

Technical Field

[0001] The utility model relates to the technical field of oral medical instruments, in particular to a scanning head of a scanner, a scanner and oral scanning equipment. Background Art

[0002] In the related art, an air outlet tube is built into the scanning head to blow open the gums so as to scan the edges of the teeth below the gums. During the process of blowing the gums, saliva may drip into the inner cavity of the scanning head and contaminate the inner cavity of the scanner. The contaminated inner cavity of the scanner will cause the image obtained by the scanning host to be inaccurate, resulting in the final digital impression not matching the patient's teeth. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide a scanning head of a scanner, which can flush saliva away from the scanning port and the inner cavity of the scanner, reduce or avoid the risk of saliva dripping into the inner cavity of the scanning head and contaminating the inner cavity of the scanner, so that the scanning host can record a clearer image, reduce the scanning time for obtaining a clear image, improve the scanning efficiency, and enable the data processing device to obtain more accurate tooth data, thereby more accurately calculating the three-dimensional shape data of the patient's oral cavity.

[0004] The utility model also provides a scanner with the scanning head.

[0005] The utility model also provides an oral scanning device with the scanner.

[0006] The scanning head of the scanner according to the first aspect of the present invention comprises: a shell having an inner cavity, a scanning port connected to the inner cavity being formed at the front end of the shell; and a fluid injection module, arranged in the shell, for guiding the fluid to spray from the inside of the scanning port to the outside.

[0007] According to the scanning head of the scanner of the utility model, by arranging a fluid injection module on the shell and using the fluid injection module to guide the fluid to flow toward the scanning port, the fluid can flush saliva away from the scanning port and the inner cavity of the scanner, thereby reducing or avoiding the risk of saliva dripping into the inner cavity of the scanning head and contaminating the inner cavity of the scanner, so that the scanning host can record clearer images, reduce the scanning time for obtaining clear images, improve scanning efficiency, and enable the data processing equipment to obtain more accurate dental data, thereby more accurately calculating the three-dimensional morphological data of the patient's oral cavity.

[0008] According to some embodiments of the present invention, the scanning head further comprises: a reflector, wherein the reflector is disposed at the front end of the inner cavity, and the injection port of the fluid injection module is disposed at a side of the reflector away from the scanning port.

[0009] In some embodiments of the present invention, the fluid injection module includes a first injection port, and the first injection port is arranged toward the reflector.

[0010] In some embodiments of the present invention, the angle between the injection direction of the first injection port and the reflective surface of the reflector is greater than or equal to 10° and less than or equal to 45°.

[0011] In some embodiments of the present invention, there are two first injection ports, the two first injection ports are spaced apart along the second direction, and the blowing directions of the two first injection ports intersect; wherein the inner cavity extends along the first direction, the first direction is perpendicular to the second direction, and the second direction is parallel to the reflecting surface of the reflector.

[0012] According to some embodiments of the utility model, a mounting port is opened on the shell, the mounting port is communicated with the inner cavity, and the mounting port is arranged opposite to the scanning port, and the fluid injection module is inserted into the mounting port.

[0013] According to some optional embodiments of the present invention, the fluid injection module includes a second injection port, which is arranged toward the scanning port and is used to guide the fluid to sweep the gums.

[0014] In some optional embodiments of the utility model, the scanning head also includes: a reflector, which is arranged at the front end of the inner cavity, and the second injection port is arranged on the side of the reflector away from the scanning port, and the second injection port and the scanning port are arranged opposite to each other in a third direction; wherein, the inner cavity extends along a first direction, the first direction is perpendicular to the second direction, and the second direction is parallel to the reflecting surface of the reflector, and the third direction intersects with the first direction, the third direction is perpendicular to the second direction, and the third direction is parallel to the reflecting surface of the reflector.

[0015] In some optional embodiments of the present invention, the spraying direction of the second spray port is parallel to the reflecting surface of the reflecting mirror; or, the angle between the spraying direction of the second spray port and the reflecting surface of the reflecting mirror is greater than or equal to 130° and less than 180°.

[0016] According to some embodiments of the present invention, the scanning head further includes: a second spraying assembly, which is detachably disposed on the outside of the shell, and is used to guide the fluid to spray toward the spraying area of ​​the fluid spraying module.

[0017] The scanner according to the second aspect of the present invention comprises: a scanning host and a scanning head, wherein the scanning head is the scanning head according to the first aspect of the present invention, and is connected to the scanning host to transmit the image of the scanning area to the scanning host.

[0018] According to the scanner of the present invention, by setting the above-mentioned scanning head, the image received and recorded by the scanning host can be clearer, so that the data processing equipment can obtain more accurate tooth data, thereby more accurately calculating the three-dimensional morphological data of the patient's oral cavity.

[0019] The oral scanning device according to the third aspect of the utility model includes: a scanner according to the second aspect of the utility model; a data processing device, wherein the data processing device is connected to the scanner, and the data processing device analyzes and calculates the three-dimensional morphological data of the patient's oral cavity by receiving the image recorded by the scanner.

[0020] According to the oral cavity scanning device of the present invention, by setting the above-mentioned scanner, the data processing device can obtain more accurate tooth data, thereby more accurately calculating the three-dimensional shape data of the patient's oral cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0023] Figure 1 A perspective view of a scanner according to some embodiments of the utility model;

[0024] Figure 2 for Figure 1 The enlarged view of point A in the middle;

[0025] Figure 3 for Figure 1 A stereogram of another viewing angle of the scanner in FIG.

[0026] Figure 4 for Figure 1 A top view of the scanner in FIG.

[0027] Figure 5 for Figure 4 The enlarged view of point B in the middle;

[0028] Figure 6 for Figure 1 A side view of the scanner in FIG.

[0029] Figure 7 for Figure 1 Bottom view of the scanner in FIG.

[0030] Figure 8 for Figure 7 Cross-sectional view along line CC.

[0031] Among them, 100, scanner;

[0032] 10. Scanning head;

[0033] 1. Scanning body; 11. Shell; 111. Inner cavity; 112. Image transmission port; 113. Scanning port; 12. Reflector; 121. Reflection surface; 13. Connecting end; 14. Scanning end;

[0034] 3. Fluid injection module; 31. First injection port; 32. Second injection port;

[0035] 4. Fluid delivery pipe;

[0036] 50. Scanning host; 5. Air supply device;

[0037] 61. Teeth; 62. Saliva. DETAILED DESCRIPTION

[0038] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0039] Reference Figure 1-Figure 8 The oral scanning device includes a scanner 100 and a data processing device. The scanner 100 includes a scanning host 50 and a scanning head 10. The scanning host 50 is connected to the scanning head 10. When using the oral scanning device, the scanning head 10 can be placed in the patient's oral cavity. Light is transmitted through the inner cavity of the scanner 100, so that the scanning host 50 scans the patient's oral cavity to record the image of the patient's oral cavity surface and transmits the image information to the data processing device. The data processing device analyzes and calculates the three-dimensional shape data of the patient's oral cavity according to the image information transmitted by the scanning host 50. The scanning host 1 may include a projector and an image sensor.

[0040] For example, the data processing device may include a microcontroller. Specifically, the microcontroller may be a single chip microcomputer, a CPU or a GPU. Specifically, the data processing device may be a computer with a built-in microcontroller, or a mobile phone with a built-in microcontroller.

[0041] For example, the oral scanning device may also include a display device, which is connected to the data processing device and is used to display the three-dimensional shape of the patient's oral cavity calculated by the data processing device, so that medical workers can optimize the calculated three-dimensional shape.

[0042] The scanning head 10 of a scanner according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

[0043] Reference Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 8 According to the scanning head 10 of the first embodiment of the utility model, the housing 11 and the fluid injection module 3 are provided. The housing 11 has an inner cavity 111. A scanning port 113 connected to the inner cavity 111 is formed at one end of the housing 11. The fluid injection module 3 is arranged on the housing 11. The fluid injection module 3 is used to guide the fluid to be sprayed toward the scanning area facing the scanning port 113. It should be noted that the scanning area refers to the working scanning area of ​​the scanner, and the object to be measured can be scanned by the scanner 100 in the working scanning area.

[0044] The fluid injection module 3 is connected to the fluid supply device. The fluid generated by the fluid supply device is sprayed toward the scanning area facing the scanning port 113 through the fluid injection module 3. The fluid supply device can be integrated with the scanner 100 as a component of the scanner 100, or it can be independent of the scanner 100 as an independent device. The fluid injection module 3 is fixedly connected or detachably connected to the fluid supply device. For example, the fluid supply device can be an air supply device 5, which is connected to the fluid injection module 3, and the gas generated by the air supply device 5 is sprayed toward the scanning area facing the scanning port 113 through the fluid injection module 3. In the field of oral scanning, it can be used to blow open the gums (i.e., blowing gums). Of course, if there are other needs, the fluid supply device can also be a liquid supply device.

[0045] According to the scanning head 10 of the scanner of the present invention, by arranging the fluid injection module 3 on the shell 11, and using the fluid injection module 3 to guide the fluid to flow toward the scanning port 113, the fluid can flush the saliva away from the scanning port 113, and flush the saliva away from the inner cavity of the scanner, thereby reducing or avoiding the risk of saliva dripping into the inner cavity 111 of the scanning head 10 and contaminating the inner cavity of the scanner 100, so that the scanning host 50 can record clearer images, reduce the scanning time for obtaining clear images, improve scanning efficiency, and enable the data processing equipment to obtain more accurate tooth data, thereby more accurately calculating the patient's oral three-dimensional morphological data.

[0046] Reference Figure 3 , Figure 6-Figure 8 , the fluid injection module 3 includes a flow channel provided in the shell 11, the input end of the flow channel is connected to the fluid supply device, and the output end of the flow channel is provided with an injection port. The flow channel is provided in the shell 11, and the flow channel and the shell 11 are integrally formed. In another embodiment, the fluid injection module 3 may also include a fluid delivery pipe 4 provided with the flow channel, the fluid delivery pipe 4 is installed in the shell 11, and the fluid delivery pipe is fixedly installed or detachably installed with the shell 11. For example, the shell 11 is provided with a mounting port, and the fluid delivery pipe is passed through the mounting port. It can be seen that the fluid injection module 3 can be integrally formed with the shell 11, and the fluid injection module 3 can also be detachably connected to the shell 11.

[0047] According to some embodiments of the present invention, the fluid injection module 3 is detachably connected to the housing 11. For example, the fluid injection module 3 can be detachably connected to the housing 11 by a snap-fitting manner, and the fluid injection module 3 can also be detachably fixed to the housing 11 by a fastener. When the gingival blowing scan is not required, the size of the scanning head 10 can be reduced by removing the fluid injection module 3 from the housing 11, meeting the patient's comfort requirements and improving the overall performance of the scanner 100.

[0048] The sweeping area (i.e., the spraying area) of the fluid spraying module 3 is at least partially located in the scanning area facing the scanning port 113. For example, the center of the sweeping area of ​​the fluid spraying module 3 can be located at or close to the center of the scanning area facing the scanning port 113, so as to achieve center consistency. When used for gum blowing, the airflow blown by the fluid spraying module 3 blows toward the gums at the center of the scanning area. After the gums in the scanning area are blown open, subgingival scanning can be achieved. In this process, doctors are accustomed to facing the center of the scanning area to the target area to be tested in the oral cavity, and the center consistency setting can ensure that the airflow sprayed by the fluid spraying module 3 is sprayed toward the target area to be tested in the oral cavity in the scanning area. It should be noted that gum blowing generally requires a certain force of the airflow, and the airflow blown by the fluid spraying module 3 can form a spray effect by controlling the fluid flow rate, flow rate, pressure, etc., thereby effectively blowing the gums open. In one embodiment, the inner diameter of the spraying port of the fluid spraying module 3 gradually decreases along the spraying direction, and the air pressure when the airflow is blown out is increased, so that the force of the airflow blowing toward the gums can be guaranteed.

[0049] When the scanning head 10 is placed in the patient's mouth for oral scanning, when it is necessary to scan the area covered by the gums (i.e., the subgingival area), the fluid injection module 3 is activated to spray gas toward the gums in the scanning area, blow open the gums, and obtain an image of the subgingival area. For example, the gas injected by the fluid injection module 3 is used to blow open the gums around the tooth 61 to be scanned, and obtain an image of the subgingival shoulder of the tooth 61. In addition, the saliva 62 splashed from the oral cavity can be blown away to prevent the saliva 62 from falling into the inner cavity 111 through the scanning port 113 or reduce the amount of saliva 62 falling into the inner cavity 111 through the scanning port 113, thereby avoiding or reducing the risk of saliva dripping into the inner cavity 111 of the scanning head 10 and contaminating the scanner 100.

[0050] By arranging the fluid injection module 3 on the scanner 100, the fluid injection module 3 can follow the movement of the scanner and realize linkage, so that the sweeping area of ​​the fluid injection module 3 is consistent with the scanning area of ​​the scanner 100. Medical workers can realize gingival blowing scanning only by operating the scanner 100, without the need for additional gingival blowing operation, thereby reducing the difficulty of operation during oral scanning.

[0051] Reference Figure 2 , Figure 5 and Figure 8 The shell 11 has an inner cavity 111 extending along a first direction. One end of the shell 11 in the first direction is connected to the scanning host 50 . A scanning port 113 is formed at one end of the shell 11 away from the scanning host 50 .

[0052] The scanning head 10 further includes a reflector 12 disposed in the housing. The reflector 12 is disposed in the inner cavity 111 and is located at an end of the housing 11 away from the scanning host 50 (i.e., the reflector 12 and the scanning port 113 are located at the same end of the housing 11). The reflector 12 is used to reflect the light passing through the scanning port 113 to the scanning host 50, and is also used to reflect the light projected by the scanning host 50 to the scanning area facing the scanning port 113, wherein the propagation path of the light is the inner cavity of the scanning head 10. For example, referring to Figure 1-Figure 8 The shell 11 is generally cylindrical, the inner cavity 111 extends along the axial direction of the shell 11, the scanning port 113 is opened on the radial outer surface of the shell 11, and the reflecting surface 121 of the reflector 12 is set at an angle to the first direction (ie, the axial direction of the shell 11).

[0053] Specifically, the scanning head 10 is detachably connected to the scanning host 50. Medical workers can remove the scanning head 10 from the scanning host 50 to clean and disinfect the scanning head 10, thereby reducing the difficulty of sanitary treatment of the scanner 100 and reducing the work intensity of medical workers. When the medical and health requirements are high, medical workers can remove the old scanning head 10 and replace it with a new scanning head 10, without having to replace the entire scanner 100, so that the scanning host 50 can be reused, reducing the cost of using the scanner 100 to scan the patient's oral cavity each time, and improving the overall performance of the scanner 100. The scanning host 50 can also be adapted to scanning heads 10 of different specifications according to scanning requirements, such as scanning heads 10 of different sizes, where a smaller scanning head 10 is used for children's oral cavity scanning, and a larger scanning head 10 is used for adult oral cavity scanning, and scanning heads 10 of different orientations, that is, scanning heads 10 of different orientations have different scanning port orientations when installed in the scanning host. Of course, the scanning head 10 and the scanning host 50 can also be integrally formed.

[0054] The fluid injection module 3 is used to guide the fluid to spray from the inside of the scanning port 113 to the outside. In one embodiment, the fluid injection module 3 includes a first injection component, and the first injection component is used to guide the fluid to spray from the inside of the scanning port 113 to the outside. The first injection component is arranged to avoid the central area of ​​the inner cavity 111, and the central area of ​​the inner cavity 111 refers to the effective transmission area of ​​light in the inner cavity 111. The first injection component is arranged on the side of the shell 11 opposite to the scanning port 113. The first injection component includes a flow channel arranged on the shell 11, and the flow channel is arranged on the side of the shell 11 opposite to the scanning port 113. The flow channel passes through the inside and outside of the shell 11 and is connected with the inner cavity 111. The input end of the flow channel is located outside the shell 11 and can be connected to the air supply device 5. The output end of the flow channel is located on the inner side of the shell 11 (that is, the inner cavity 111), and a spray port is formed at the output end. The spray port of the first injection component is located in the area of ​​the shell 11 that is directly opposite to the scanning port 113 (including the vicinity of the directly opposite area). Refer to Figure 2 , Figure 5 and Figure 8 According to some embodiments of the utility model, the injection port of the first injection assembly includes a first injection port 31, and the first injection port 31 is arranged toward the reflector 12, that is, the purge area of ​​the first injection port 31 is at least partially located on the reflector 12. By arranging that the purge area of ​​the first injection port 31 is at least partially located on the reflector 12, when the first injection port 31 sprays airflow, the airflow can be blown toward the reflector 12 and blown out from the scanning port 113. The airflow blown toward the reflector 12 can blow away the saliva remaining on the reflector 12 to prevent the saliva on the reflector 12 from affecting the scanning accuracy, and the airflow can also blow away the saliva splashed from the oral cavity and blow toward the gums on both sides of the tooth 61 when it is blown out from the scanning port 111.

[0055] When saliva 62 drips onto the reflector 12, the airflow can change the movement trajectory of the saliva 62, blow the saliva 62 away from the reflector 12, and blow it out of the inner cavity 111 from the scanning port 113. A layer of air film formed on the reflecting surface 121 of the reflector 12 can prevent the saliva 62 from dripping onto the reflecting surface 121 and blow the saliva 62 away from the reflector 12, effectively reducing the risk of saliva 62 dripping on the reflecting surface 121 and causing a decrease in scanning accuracy, thereby improving the reliability of the scanning head 10, ensuring the scanning accuracy of the scanner 100, and improving the reliability of the scanner 100.

[0056] For example, a plurality of first injection ports 31 may be provided, wherein the plurality of first injection ports 31 are arranged at circumferential intervals along the scanning port 113, and each first injection port 31 guides the gas to flow toward the center position of the scanning port 113, so that multiple streams of gas simultaneously block the scanning port 113, thereby more comprehensively blocking the scanning port 113 and effectively preventing saliva 62 from flowing from the scanning port 113 into the inner cavity 111.

[0057] In the description of the present invention, it should be understood that “plurality” means “two” or “more than two”.

[0058] Reference Figure 8 In some optional embodiments of the present invention, the angle β between the injection direction of the first injection port 31 and the reflective surface 121 of the reflector 12 is greater than or equal to 10° and less than or equal to 45°. For example, the angle β between the injection direction of the first injection port 31 and the reflective surface 121 of the reflector 12 can be 10°, 11°, 12°, 13°, 14°, 15°, 16°, 17°, 18°, 19, 20°, 21°, 22°, 23°, 24°, 25°, 26°, 27°, 28°, 29°, 30°, 31°, 32°, 33°, 34°, 35°, 36°, 37°, 38°, 39°, 40°, 41°, 42°, 43°, 44°, 45°.

[0059] It should be understood that the airflow will diffuse in the blowing direction after being blown out from the injection port of the fluid injection module 3 . Therefore, the airflow blown out from the first injection port 31 is generally truncated cone-shaped, and the axis of the truncated cone-shaped airflow is in the injection direction of the first injection port 31 .

[0060] The smaller the angle β between the injection direction of the first injection port 31 and the reflecting surface 121 of the reflecting mirror 12, the greater the energy of the portion of the gas ejected from the first injection port 31 that flows directly toward the scanning port 113, the more effectively the saliva 62 can be blown out of the inner cavity 111, and the more effectively the saliva 62 can be prevented from dripping on the reflecting surface 121. The larger the angle β between the injection direction of the first injection port 31 and the reflecting surface 121 of the reflecting mirror 12, the greater the energy of the portion of the gas ejected from the first injection port 31 that flows directly toward the reflecting surface 121, the larger the range covered by the air film formed on the reflecting surface 121 by the gas ejected from the first injection port 31, the greater the energy of the air film, the more effectively the saliva 62 can be blown away from the reflecting surface 121, the more effectively the saliva 62 can be prevented from gathering on the reflecting surface 121, and the more effectively the saliva 62 can be prevented from being atomized on the reflecting surface 121.

[0061] By setting the angle β between the injection direction of the first injection port 31 and the reflecting surface 121 of the reflecting mirror 12 to be greater than or equal to 10° and less than or equal to 45°, the air flow intensity of the part blowing toward the scanning port 113 and the air flow intensity of the part blowing toward the reflecting surface 121 can be taken into account, so that the airflow ejected from the first injection port 31 can effectively and reliably blow the saliva 62 dripping onto the reflecting mirror 12 away from the reflecting mirror 12, and effectively and reliably blow the saliva 62 falling into the inner cavity 111 out of the inner cavity 111, thereby preventing the saliva on the reflecting mirror from affecting the scanning accuracy of the scanner.

[0062] Reference Figure 8 In some optional embodiments of the present invention, there are two first jet ports 31, the two first jet ports 31 are spaced apart along the second direction, and the jet directions of the two first jet ports 31 intersect, specifically, the jet centers of the two first jet ports 31 intersect along the center line of the jet direction, and the intersection points of the jet centers of the two first jet ports 31 along the center line of the jet direction and the reflector 12 are dispersed on the reflector 12 along the second direction. The first direction is perpendicular to the second direction, and the second direction is parallel to the reflective surface 121 of the reflector 12.

[0063] When the two streams of gas blown out from the two first injection ports 31 flow onto the reflector 12, the two streams of gas can work together to form an air film with higher energy on the reflective surface 121, so that the air film formed on the reflective surface 121 of the reflector 12 can more effectively prevent saliva 62 from dripping onto the reflective surface 121, and reliably blow the saliva 62 away from the reflector 12, effectively preventing the saliva on the reflector 12 from affecting the scanning accuracy of the scanner 100.

[0064] Moreover, by setting a gap between the two first injection ports 31 , the sweeping areas of the two gases can more completely cover the reflective surface 121 , thereby more effectively preventing the saliva 62 from dripping onto the reflective surface 121 , thereby improving the reliability of the scanning head 10 .

[0065] Reference Figure 2 , Figure 5 and Figure 8 According to some embodiments of the present invention, the injection port of the first injection assembly includes a second injection port 32, and the second injection port 32 is arranged toward the scanning port 113. The injection center of the second injection port 32 intersects with the scanning port 113 along the center line of the injection direction. Preferably, the second injection port 32 is arranged directly opposite to the scanning port 113, and the second injection port injects airflow for blowing gums, so that the airflow ejected from the second injection port 32 can directly pass through the scanning port 113 and be ejected toward the scanning area opposite to the scanning port 113, so that the airflow ejected from the second injection port 32 has sufficient force to blow open the gums when it is ejected to the gums of the patient in the scanning area, thereby improving the reliability of the fluid injection module 3; at the same time, this can reduce the collision between the airflow ejected from the second injection port 32 and the shell 11, reduce the noise generated when the second injection port 32 ejects airflow, reduce the noise generated when the scanner 100 is working, and improve the overall performance of the scanner 100.

[0066] Reference Figure 2 , Figure 5 and Figure 8 According to some specific embodiments of the present invention, the fluid injection module 3 includes a first injection port 31 and a second injection port 32. The first injection port 31 is set toward the reflector 12 and is used to blow the reflector 12. The second injection port 32 is set toward the scanning port 113 and is used to blow the gums.

[0067] In this way, sufficient airflow can be obtained to sweep the reflector 12 and the scanning port 113. After the saliva 62 falls into the inner cavity 111 from the scanning port 113, the airflow ejected from the two nozzles can reliably blow the saliva 62 out of the scanning port 113 and reliably disperse the saliva 62, thereby effectively reducing the amount of saliva 62 dripping on the reflector 12 or preventing the saliva 62 from dripping on the reflector 12, so that the reflector 12 can be clearly imaged, thereby improving the reliability of the scanning head 10.

[0068] The first injection port 31 and the second injection port 32 may be disposed at multiple output ends of the same flow channel. When two first injection ports 31 are provided, the two first injection ports 31 may be symmetrically disposed about the second injection port 32. As one embodiment, two first injection ports 21 are provided and one second injection port 32 is provided, and the three may be arranged in a triangle.

[0069] In addition, the second injection port 32 can also be arranged on the side of the scanning port 113 on the shell 11. At this time, the first injection port 31 and the second injection port 32 are located on both sides of the inner cavity 111, and flow channels are formed on both sides of the shell 11, one side of the flow channel is connected to the first injection port 31, and the other side of the flow channel is connected to the second injection port 32.

[0070] Reference Figure 2 , Figure 5 and Figure 8 According to some embodiments of the present invention, the scanning head 10 further includes a second spray assembly, which is disposed outside the housing 11 and is used to guide the fluid to spray toward the scanning area facing the scanning port 113. The second spray assembly and the housing 11 may be integrally formed, or the second spray assembly and the housing 11 may be detachably connected.

[0071] When the injection pressure of the fluid injection module 3 is relatively low, the second injection component can be turned on while the fluid injection module 3 is turned on, so that the fluid injection module 3 and the second injection component simultaneously spray fluid outward, thereby increasing the pressure in the injection area of ​​the fluid injection module 3 to a higher level, thereby reliably blowing open the patient's gums 61 and improving the reliability of the scanning head 10.

[0072] By detachably arranging the second injection assembly on the outside of the shell 11, when the fluid injection module 3 has sufficient injection pressure, the second injection assembly can be removed from the shell 11, reducing the size of the scanning head 10, so that the scanning head 10 has a larger movement space in the patient's mouth, making the scanning operation simpler.

[0073] Reference Figure 1-Figure 8 According to the second embodiment of the utility model, the scanner 100 includes: a scanning host 50 and a scanning head 10. The scanning host 50 is connected to the scanning head 10. When using the oral scanning device, the scanning head 10 can be placed in the patient's oral cavity. The light is transmitted through the inner cavity of the scanner 100, so that the scanning host 50 scans the patient's oral cavity to record the image of the patient's oral cavity surface, and transmits the image information to the data processing device. The data processing device analyzes and calculates the three-dimensional shape data of the patient's oral cavity according to the image information transmitted by the scanning host 50. The scanning host 1 may include a projector and an image sensor.

[0074] According to the scanner 100 of the present invention, by setting the above-mentioned scanning head 10, the image received and recorded by the scanning host 50 can be clearer, so that the data processing equipment can obtain more accurate tooth data, thereby more accurately calculating the three-dimensional morphological data of the patient's oral cavity.

[0075] The oral scanning device according to the third aspect of the utility model comprises: the scanner 100 and the data processing device according to the second aspect of the utility model, the data processing device is connected to the scanner 100, and the data processing device analyzes and calculates the three-dimensional morphological data of the patient's oral cavity by receiving the image recorded by the scanner 100.

[0076] For example, the data processing device may include a microcontroller unit, in which software for establishing a digital impression is built. Specifically, the microcontroller unit may be a single-chip microcomputer, a CPU, or a GPU. Specifically, the data processing device may be a computer with a built-in microcontroller unit, or a mobile phone or a tablet with a built-in microcontroller unit.

[0077] For example, the oral scanning device may also include a display device, which is connected to the data processing device and is used to display the three-dimensional shape of the patient's oral cavity calculated by the data processing device, so that medical workers can optimize the calculated three-dimensional shape.

[0078] Specifically, the display device can be used to display an image of the scanning area. When the medical worker uses the scanner 100 to scan the patient's oral cavity, the medical worker can observe the patient's oral cavity through the display device and move the scanner 100 according to the observed image, making the medical worker's scanning operation simpler and reducing the work intensity of the medical worker.

[0079] The scanner, data processing equipment and display device can be independent of each other or integrated into one.

[0080] For example, refer to Figure 3 , Figure 6-Figure 8The oral scanning device may further include a fluid supply device, and the fluid injection module 3 is connected to the fluid supply device. The fluid generated by the fluid supply device is sprayed toward the scanning area facing the scanning port 113 through the fluid injection module 3. The fluid supply device may be integrated with the scanner 100 as a component of the scanner 100, or it may be independent of the scanner 100 as an independent device. The fluid injection module 3 is fixedly connected or detachably connected to the fluid supply device. For example, the fluid supply device may be an air supply device 5, which is connected to the fluid injection module 3, and the gas generated by the air supply device 5 is sprayed toward the scanning area facing the scanning port 113 through the fluid injection module 3. In the field of oral scanning, it can be used to blow open the gums (i.e., blowing the gums). Of course, if there are other needs, the fluid supply device may also be a liquid supply device.

[0081] According to the oral scanning device of the present invention, by setting the above-mentioned scanner 100, the data processing device can obtain more accurate tooth data, thereby more accurately calculating the three-dimensional shape data of the patient's oral cavity.

[0082] In the description of the present utility model, it is to be understood that relational terms such as "first" and "second" are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprises", "comprising" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0083] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0084] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0085] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A scanning head of a scanner, characterized in that: include: A housing, wherein the housing has an inner cavity, and a scanning port communicating with the inner cavity is formed at one end of the housing; The fluid injection module is arranged on the housing and is used for guiding the fluid to be sprayed from the inside of the scanning port to the outside.

2. The scanning head of the scanner according to claim 1, characterized in that: The fluid injection module includes a first injection component disposed on the housing, the first injection component is used to guide the fluid to be sprayed from the inside of the scanning port to the outside, and the first injection component is disposed away from the central area of ​​the inner cavity.

3. The scanning head of the scanner according to claim 2, characterized in that: The first spraying assembly is arranged on a side of the housing opposite to the scanning port.

4. The scanning head of the scanner according to claim 3, characterized in that: The first injection assembly includes a flow channel arranged in the shell, the flow channel is connected to the inner cavity, the input end of the flow channel is located outside the shell, the output end of the flow channel is located in the inner cavity, the output end of the flow channel is formed with an injection port, and the injection port of the first injection assembly is arranged in an area on the shell facing the scanning port.

5. The scanning head of the scanner according to claim 4, characterized in that: It also includes a reflector arranged on the shell, the reflector is arranged in the inner cavity, the reflector and the scanning port are located at the same end of the shell, and the injection port of the first injection assembly includes a first injection port, and the first injection port is arranged toward the reflector.

6. The scanning head of the scanner according to claim 5, characterized in that: The included angle between the injection direction of the first injection port and the reflection surface of the reflection mirror is greater than or equal to 10° and less than or equal to 45°.

7. The scanning head of the scanner according to claim 5, characterized in that: There are two first injection ports, the two first injection ports are spaced apart along the second direction, and the injection directions of the two first injection ports intersect; The inner cavity extends along a first direction, the first direction is perpendicular to the second direction, and the second direction is parallel to a reflecting surface of the reflecting mirror.

8. The scanning head of the scanner according to claim 4, characterized in that: The jetting port of the first jetting assembly includes a second jetting port, and the second jetting port is arranged toward the scanning port.

9. The scanning head of the scanner according to any one of claims 1 to 8, characterized in that: The fluid injection module comprises a second injection assembly, which is arranged outside the housing and is used to guide the fluid to be injected toward a scanning area facing the scanning port.

10. The scanning head of the scanner according to any one of claims 1 to 8, characterized in that: The fluid ejection module is detachably connected to the housing.

11. The scanning head of a scanner according to any one of claims 1 to 8, characterized in that: The fluid injection module has an injection port, and the inner diameter of the injection port gradually decreases along the injection direction.

12. A scanner, characterized in that: include: Scan host and scan head, The scanning head is the scanning head according to any one of claims 1 to 11.

13. An oral scanning device, characterized in that: include: The scanner according to claim 12; A data processing device is connected to the scanner, and the data processing device analyzes and calculates the three-dimensional shape data of the patient's oral cavity by receiving the image recorded by the scanner.

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