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WO2025067571A1 - Tête de balayage, ensemble tuyau d'air, dispositif de balayage et système de balayage intrabuccal - Google Patents

Tête de balayage, ensemble tuyau d'air, dispositif de balayage et système de balayage intrabuccal Download PDF

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Publication number
WO2025067571A1
WO2025067571A1 PCT/CN2024/134855 CN2024134855W WO2025067571A1 WO 2025067571 A1 WO2025067571 A1 WO 2025067571A1 CN 2024134855 W CN2024134855 W CN 2024134855W WO 2025067571 A1 WO2025067571 A1 WO 2025067571A1
Authority
WO
WIPO (PCT)
Prior art keywords
scanning
scanning head
port
head according
sub
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/CN2024/134855
Other languages
English (en)
Chinese (zh)
Inventor
马超
徐斯旭
赵晓波
陈晓军
张伟
肖淑娟
章惠全
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shining 3D Technology Co Ltd
Original Assignee
Shining 3D Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN202322650972.2U external-priority patent/CN221730990U/zh
Priority claimed from CN202322643186.XU external-priority patent/CN221730989U/zh
Priority claimed from CN202322644539.8U external-priority patent/CN221770346U/zh
Priority claimed from CN202421054039.7U external-priority patent/CN222777383U/zh
Application filed by Shining 3D Technology Co Ltd filed Critical Shining 3D Technology Co Ltd
Publication of WO2025067571A1 publication Critical patent/WO2025067571A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C17/00—Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
    • A61C17/02—Rinsing or air-blowing devices, e.g. using fluid jets or comprising liquid medication
    • A61C17/022—Air-blowing devices, e.g. with means for heating the air
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C19/00—Dental auxiliary appliances
    • A61C19/04—Measuring instruments specially adapted for dentistry

Definitions

  • the present disclosure relates to the technical field of oral medical instruments, and in particular to a scanning head, an air duct assembly, a scanner and an oral scanning system.
  • Oral digital impression device also known as scanner
  • the complex and diverse oral environment will cause the three-dimensional scanning to generate more interference data, and because the optical system cannot detect the inside of the gums, it is difficult to obtain complete data for restorations such as subgingival preparations. Therefore, there is a need for a scanner that can achieve better scanning results in a complex oral environment.
  • the present disclosure provides a scanning head, an air duct assembly, a scanner and an oral scanning system to achieve better scanning effects in a complex intra-oral environment.
  • a scanning head for use in a scanner, comprising: a shell having a scanning port formed at one end of the shell; and a fluid injection module disposed on the shell and configured to guide fluid to flow at the scanning port.
  • the fluid can blow away interference factors such as debris that affect the scanning data, and dynamically push the gums aside to fully expose the subgingival shoulder, thereby obtaining three-dimensional morphological data of the tooth edge line of the invisible part under the gums. It can achieve better scanning effects in a complex intra-oral environment and improve the quality of the scanning data.
  • the fluid can also flush saliva away from the scanning port and the scanner, reducing or avoiding the risk of saliva dripping into the scanning head and contaminating the scanner, so that the scanning host can record clearer images, reduce the scanning time for obtaining clear images, and improve scanning efficiency, 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.
  • an air duct assembly for use in a scanner, comprising: an air duct including a hose and a hard tube, the hose being connected to one end of the hard tube and communicating with the hard tube, the hose being used to connect to a scanning host, the hard tube being used to connect to a shell to guide fluid to flow at a scanning port of the shell; an adapter, one end of the adapter being detachably connected to one end of the hose away from the hard tube and communicating with the hose, the other end of the adapter being used to connect to a dental chair.
  • the present application designs the air duct as a combination of a hose and a hard tube.
  • the flexibility of the hose allows it to be flexibly set on the scanning host, and the rigidity of the hard tube ensures its stability on the shell, so that the air duct can adapt to different use environments and needs, and can prevent the air duct from shaking due to force during use and interfering with the normal use of the oral scanning system, thereby improving the scanning effect of the oral scanning system.
  • the fluid guided by the hard tube can blow away debris and other interference factors that affect the scanning data, and dynamically push the gums apart to fully expose the subgingival shoulder, thereby obtaining the three-dimensional morphological data of the tooth edge line of the invisible part of the subgingival part.
  • the design of the adapter makes the connection between the hose and the dental chair detachable. Such a design not only facilitates installation and replacement, but also improves the maintenance convenience of the entire oral scanning system.
  • a scanner comprising: a scanning host and a scanning head, wherein the scanning head is the scanning head described above as an example.
  • the fluid can blow away interference factors such as debris that affect the scanning data, and dynamically push the gums aside to fully expose the subgingival shoulder, thereby obtaining three-dimensional morphological data of the tooth edge line of the invisible part under the gums. It can achieve better scanning effects in a complex intra-oral environment and improve the quality of the scanning data.
  • the fluid can also flush saliva away from the scanning port and the scanner, reducing or avoiding the risk of saliva dripping into the scanning head and contaminating the scanner, so that the scanning host can record clearer images, reduce the scanning time for obtaining clear images, and improve scanning efficiency, 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.
  • an oral scanning system comprising: the above-mentioned scanner; a data processing device, wherein the data processing device is connected to the scanner, and the data processing device receives image analysis and calculates three-dimensional morphological data of the patient's oral cavity by receiving the image recorded by the scanner.
  • the fluid can blow away interference factors such as debris that affect the scanning data, and dynamically push the gums aside to fully expose the subgingival shoulder, thereby obtaining three-dimensional morphological data of the tooth edge line of the invisible part under the gums. It can achieve better scanning effects in a complex intra-oral environment and improve the quality of the scanning data.
  • the fluid can also flush saliva away from the scanning port and the scanner, reducing or avoiding the risk of saliva dripping into the scanning head and contaminating the scanner, so that the scanning host can record clearer images, reduce the scanning time for obtaining clear images, and improve scanning efficiency, 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.
  • FIG. 1 is a schematic diagram showing a three-dimensional structure of a scanner in this exemplary embodiment.
  • FIG. 2 is an enlarged view of point A in FIG. 1 .
  • FIG. 3 shows a perspective view of the scanner in FIG. 1 from another perspective.
  • FIG. 4 shows a top view of the scanner in FIG. 1 .
  • FIG. 5 is an enlarged view of point B in FIG. 4 .
  • FIG. 6 shows a side view of the scanner in FIG. 1 .
  • FIG. 7 shows a bottom view of the scanner in FIG. 1 .
  • FIG8 is a cross-sectional view taken along line C-C in FIG7.
  • FIG. 9 is a schematic diagram showing the structure of a scanner in this exemplary embodiment.
  • FIG. 10 is a schematic structural diagram of a second fixer in FIG. 9 .
  • FIG. 11 is a schematic structural diagram of another second fixture in FIG. 9 .
  • FIG. 12 is a schematic diagram showing a three-dimensional structure of yet another scanner in this exemplary embodiment.
  • FIG. 13 is a schematic structural diagram of a first fixer in FIG. 9 .
  • FIG16 is a schematic structural diagram of the second wind direction control switch according to the exemplary embodiment.
  • FIG. 18 is a schematic perspective view showing a structure of yet another scanner according to the exemplary embodiment.
  • FIG19 shows a cross-sectional view taken along line D-D in FIG18.
  • FIG. 21 is a schematic structural diagram of the first fixing member in FIG. 18 .
  • the present application proposes an oral scanning system (not shown), including a scanner 100 and a data processing device.
  • the oral scanning system may further include a display device connected to the data processing device, and the display device is configured to display the three-dimensional shape of the patient's oral cavity calculated by the data processing device, so as to facilitate medical workers to process the calculated three-dimensional shape.
  • the scanning head 10 or the scanner 100 can be used not only in the field of oral scanning, but also in the field of industrial scanning, such as obtaining data of industrial products and industrial equipment, especially data inside holes. It can also be used in scanning fields such as facial scanners and professional scanners, and can realize three-dimensional reconstruction of objects or scenes such as faces, bodies, cultural relics, artworks, prostheses, medical devices, and buildings.
  • the scanning head 10 includes a housing 11 and a fluid ejection module 3 .
  • a scanning port 113 is formed at one end of the housing 11 .
  • the shell 11 is a structure made of printing material, and the printing material can be resin or ceramic to eliminate the problem of interruption of the operation of the scanner 100 caused by static electricity; the shell 11 can also be a plastic structure, and the shell 11 can be a structure that can be used multiple times or a disposable structure. In this way, the disposable structure is more convenient and hygienic when used.
  • the shell 11 has an inner cavity 111, one end of the shell 11 is connected to the scanning host 50, and a scanning port 113 is formed at one end of the shell 11 away from the scanning host 50 and is connected to the inner cavity 111; the fluid injection module 3 is arranged on the shell 11, and the fluid injection module 3 is configured to guide the fluid to flow at the scanning port 113, wherein the fluid injection module 3 can guide the fluid to spray toward the scanning area facing the scanning port 113.
  • the injection port of the fluid injection module 3 can be inside the shell 11 where the scanning head 10 is set, or it can be set outside the shell 11 of the scanning head 10.
  • the scanning area refers to the working scanning area of the scanner 100, and the object to be measured in the working scanning area can be scanned by the scanner 100.
  • 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.
  • 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.
  • the fluid supply device can also be a liquid supply device.
  • the fluid injection module 3 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 blow away interference factors such as debris that affect the scanning data, and dynamically push the gums aside to fully expose the subgingival shoulder, thereby obtaining three-dimensional morphological data of the edge line of the tooth 61 of the invisible part under the gums, and can achieve better scanning effects in a complex intraoral environment and improve the quality of the scanning data.
  • interference factors such as debris that affect the scanning data
  • the gums aside to fully expose the subgingival shoulder
  • the fluid can also flush saliva 62 or mist away from the scanning port 113 and flush saliva 62 or mist away from the scanner 100, thereby reducing or avoiding the risk of saliva 62 dripping into the scanning head 10 and contaminating the scanner 100, so that the scanning host 50 can record clearer images, reduce the scanning time for obtaining clear images, and improve scanning efficiency, so that the data processing equipment can obtain more accurate tooth 61 data, thereby more accurately calculating the three-dimensional morphological data of the patient's oral cavity.
  • the fluid injection module 3 includes a flow channel (not shown) 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.
  • 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 4 is fixedly installed or detachably installed with the shell 11.
  • the shell 11 is provided with a mounting port, and the fluid delivery pipe 4 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.
  • the fluid injection module 3 is detachably connected to the housing 11.
  • the fluid injection module 3 can be detachably connected to the housing 11 by a snap-fitting manner, or the fluid injection module 3 can be detachably fixed to the housing 11 by a fastener.
  • the size of the scanning head 10 can be reduced by removing the fluid injection module 3 from the housing 11, thereby meeting the patient's comfort requirements and improving the overall performance of the scanner 100.
  • 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.
  • 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.
  • 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.
  • blowing gums generally requires the airflow to have a certain force, 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.
  • 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 as to ensure the force of the airflow when blowing toward the gums.
  • the fluid injection module 3 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.
  • 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.
  • the fluid injection module 3 By arranging the fluid injection module 3 on the scanner 100, the fluid injection module 3 can follow the movement of the scanner 100 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.
  • the scanning head 10 further includes a reflector 12 disposed in the housing 11.
  • 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 configured to reflect the light passing through the scanning port 113 to the scanning host 50, and is also configured to reflect the light projected by the scanning host 50 to the scanning area opposite to the scanning port 113, wherein the propagation path of the light is the inner cavity 111 of the scanning head 10.
  • the housing 11 is generally cylindrical, the inner cavity 111 extends along the axial direction of the housing 11, the scanning port 113 is opened on the radial outer surface of the housing 11, and the reflective surface 121 of the reflector 12 is arranged at an angle to the axial direction of the housing 11.
  • 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.
  • 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 orientations of the scanning port 113 when installed in the scanning host 50.
  • scanning head 10 and the scanning host 50 can also be integrally formed.
  • the fluid injection module 3 is configured to guide the fluid to spray from the inside of the scanning port 113 to the outside.
  • the fluid injection module 3 includes a first injection assembly, which is configured to guide the fluid to spray from the inside of the scanning port 113 to the outside.
  • the first injection assembly 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 assembly is arranged on the side of the shell 11 opposite to the scanning port 113.
  • the first injection assembly 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 to 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 the output end is formed with a spray port.
  • the spray port of the first injection assembly 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).
  • the jet port of the first jet assembly includes a first jet port 31, and the first jet port 31 is arranged toward the reflector 12, that is, the purge area of the first jet port 31 is at least partially located on the reflector 12.
  • 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 62 remaining on the reflector 12 to prevent the saliva 62 on the reflector 12 from affecting the scanning accuracy, and the airflow can also blow away the saliva 62 splashed from the oral cavity and blow toward the gums on both sides of the teeth 61 when it is blown out from the scanning port 113.
  • 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.
  • 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.
  • the angle ⁇ 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°.
  • the angle ⁇ between the injection direction of the first injection port 31 and the reflective surface 121 of the reflector 12 may 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°.
  • 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 .
  • the angle ⁇ between the injection direction of the first injection port 31 and the reflecting surface 121 of the reflecting mirror 12 can be greater than or equal to 10° and less than or equal to 45°, so that 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 62 on the reflecting mirror 12 from affecting the scanning accuracy of the scanner 100.
  • first injection ports 31 there are two first injection ports 31, the inner cavity 111 extends along the first direction, the two first injection ports 31 are spaced apart along the second direction perpendicular to the first direction, and the injection directions of the two first injection ports 31 intersect, specifically, the injection centers of the two first injection ports 31 intersect along the center line of the injection direction, and the intersection points of the injection centers of the two first injection ports 31 along the center line of the injection direction and the reflector 12 are dispersed on the reflector 12 along the second direction.
  • the second direction is parallel to the reflective surface 121 of the reflector 12.
  • 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 62 on the reflector 12 from affecting the scanning accuracy of the scanner 100.
  • 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 .
  • 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.
  • the second injection port 32 is arranged directly opposite to the scanning port 113, and the second injection port 32 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 first jet port 31 and the second jet port 32 may be provided at the same time.
  • the first jet port 31 is provided toward the reflection mirror 12 and is configured to purge the reflection mirror 12 .
  • the second jet port 32 is provided toward the scanning port 113 and is configured to purge the gums.
  • 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.
  • the first injection port 31 and the second injection port 32 may be disposed at multiple output ends of the same flow channel.
  • the two first injection ports 31 may be symmetrically disposed about the second injection port 32.
  • two first injection ports 31 are provided and one second injection port 32 is provided, and the three may be arranged in a triangle.
  • the second injection port 32 can also be arranged on the side of the scanning port 113 on the shell 11.
  • 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.
  • the scanning head 10 further includes a second spray assembly, which is disposed outside the housing 11, and is configured 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.
  • the second injection assembly can be turned on while the fluid injection module 3 is turned on, so that the fluid injection module 3 and the second injection assembly simultaneously spray fluid outward, thereby increasing the pressure in the injection area of the fluid injection module 3, thereby reliably blowing open the patient's gums and improving the reliability of the scanning head 10.
  • the second injection assembly 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.
  • the scanning head 10 further includes a gingival retraction component 7, which is detachably mounted on the housing 11.
  • the gingival retraction component 7 may include a gingival retraction probe 71, which is disposed near the scanning port 113 of the scanning head 10.
  • the gingival retraction probe 71 may be mounted on the scanning head 10 near the scanning port 113 by plugging and unplugging.
  • the gingival retraction assembly 7 further includes a sleeve 72 configured to fix the gingival retraction probe 71, the sleeve 72 is disposed on the scanning head 10, and the gingival retraction probe 71 is disposed below the front end of the sleeve 72.
  • the gingival retraction probe 71 can be disposed in the sleeve 72 in a fixed or detachable manner, and the sleeve 72 is detachably disposed on the scanning head 10.
  • the stability of the gingival retraction probe 71 and the degree of matching between the gingival retraction probe 71 and the scanning head 10 can be increased.
  • the gum retraction assembly 7 can be installed on the scanning head 10, that is, the tube sleeve 72 can be installed on the scanning head 10.
  • a matching buckle can be correspondingly provided between the tube sleeve 72 and the scanning head 10, and the tube sleeve 72 is fixed to the scanning head 10 by the buckle.
  • the detachable gingival retraction component 7 can be quickly and conveniently installed on the scanning head 10 when data collection is required for non-exposed subgingival areas, wherein the tube sleeve 72 can strengthen the fixing effect between the scanning head 10 and limit the positional relationship of the gingival retraction probe 71 relative to the scanning head 10.
  • the gingival retraction probe 71 near the scanning port 113 is used to retract the gums and expose the subgingival shoulder, so that the scanner 100 can use structured light to project to the subgingival tooth 61 edge line area during scanning, and scan the three-dimensional morphological data of the shoulder edge of the subgingival tooth 61.
  • the front end of the gingival retraction probe 71 in this embodiment is flat, round or in other shapes.
  • scale lines can be set on the gingival retraction probe 71.
  • a plurality of annular scale lines are set on the gingival retraction probe 71.
  • the plurality of annular scale lines are 0.1mm, 0.2mm, 0.3mm, etc. from the outside to the inside. The accuracy and maximum value of the scale lines can be flexibly set according to actual needs.
  • the fluid injection module 3 includes an air duct 33 extending along the axial direction of the housing 11 ; the air inlet of the air duct 33 is connected to the outside, and the air outlet of the air duct 33 is at the scanning port 113 of the scanning head 10 to form a blowing airflow toward the scanning port 113 of the scanning head 10 .
  • an air duct 33 is provided in the embodiment of the present disclosure to blow air into the oral cavity to form a blowing airflow.
  • the blowing airflow can not only assist the gingival retraction probe 71 to more fully push the gums away to expose the subgingival shoulder, so as to use structured light to project to the edge line area of the subgingival tooth 61, and obtain the three-dimensional morphological data of the edge line of the subgingival tooth 61; moreover, the blowing airflow can also reduce the interference factors that affect the scanning data in the scanning environment, so that better scanning imaging effects can be achieved in a complex intraoral environment, and the quality of the scanning data can be improved.
  • the embodiment is oriented in a direction such that the scanning head 10 is at the head and the scanning host 50 is at the tail.
  • the air inlet of the air duct 33 is arranged at the tail end of the scanning host 50 to connect to the outside world, and the air outlet of the air duct 33 is at the scanning port 113 of the scanning head 10.
  • the air inlet of the air duct 33 is connected to the outside world, and the outside air is sucked in; the air forms a blowing airflow in the air duct 33, and the blowing airflow passes through the air duct 33 and is blown out at the air outlet of the air duct 33.
  • the blowing airflow is used to dynamically push the gums apart, shrink the gum margin, and expose the gingival sulcus.
  • the blowing airflow can blow away the debris on the reflector 12 of the scanning head 10 and in the oral cavity, providing a clean environment for the current scanning area, thereby obtaining more complete and accurate scanning data.
  • the gingival retraction probe 71 is a hollow cylindrical structure; the interior of the gingival retraction probe 71 of this structure is through, and air can circulate.
  • the air outlet of the air duct 33 can be connected to the rear end of the gingival retraction probe 71 to form a blowing airflow at the front end of the gingival retraction probe 71.
  • the blowing airflow passes through the air duct 33 and the gingival retraction probe 71 in sequence and blows out at the front end of the gingival retraction probe 71.
  • a sub-air duct is extended from the air duct 33, and the air outlet of the sub-air duct is connected to the rear end of the gingival retraction probe 71, so as to form a blowing airflow at the front end of the gingival retraction probe 71.
  • the blowing airflow passes through the air duct 33 in sequence and blows out a blowing airflow at the air outlet of the air duct 33.
  • the blowing airflow passes through the air duct 33, the sub-air duct and the gingival retraction probe 71 in sequence, and blows out another blowing airflow at the front end of the gingival retraction probe 71.
  • a sub-air duct specially connected to the gingival retraction probe 71 is extended from the air duct 33, so that a blowing airflow can be formed at the air outlet of the air duct 33 and at the front end of the gingival retraction probe 71, thereby increasing the number and blowing intensity of the blowing airflow.
  • this embodiment may include: a fan is provided at the air inlet of the air duct 33.
  • the fan can increase the gas pressure and discharge the gas by inputting mechanical energy, forming a blowing airflow with a higher wind pressure.
  • the present embodiment can utilize the fan to form a variety of blowing airflows with different wind pressure intensities, which can better meet the needs of different scenes for different wind pressures.
  • the air duct 33 may be a narrow and slit-shaped hose structure. It can be imagined that under the same air volume, the thinner the air duct 33, the greater the wind pressure. Therefore, in this embodiment, the air duct 33 is set to a narrow and slit-shaped tubular structure. In addition, in order to facilitate changing the air outlet direction of the air duct 33, the air duct 33 can adopt a flexible hose structure that is easy to bend and has strong flexibility.
  • the gingival retraction component 7 is configured to effectively retract the gingiva
  • the air duct 33 is configured to form a blowing airflow toward the scanning port 113, thereby reducing interference factors affecting the scan data in the scanning environment.
  • the fluid injection module 3 further includes a first fixture 34; the first fixture 34 is disposed at a position of the housing 11 close to the scanning port 113; the first fixture 34 is, for example, a spherical degree of freedom fixture, and of course, it can also be other multi-degree-of-freedom fixtures, which are not limited here.
  • the first fixture 34 is configured to fix the air duct 33 on the housing 11, and change the direction of the air outlet of the air duct 33 by rotating the spherical rotor of the first fixture 34, so as to form air blowing airflows in different directions around the scanning port 113.
  • the direction of the air outlet of the air duct 33 can be changed.
  • the air outlet of the air duct 33 is located at the scanning port 113 of the scanning head 10, so that the air outlet of the air duct 33 can blow out air flows in different directions to the scanning port 113.
  • the air flows in different directions can dynamically displace the gums from different angles to more fully expose the gingival sulcus.
  • the air flows in different directions can disperse debris at different positions in the oral cavity, thereby improving the environmental cleanliness of the scanning area, which is conducive to obtaining more complete and accurate scanning data.
  • the air duct 33 at the scanning host 50 has little effect on the direction of the blowing airflow formed at the air outlet, which can be almost ignored. Therefore, in this embodiment, the air duct 33 can be fixed on the scanning host 50 by adhesion. This fixing method is simple and low in cost.
  • the air duct 33 at the housing 11 has a greater influence on the direction of the blowing airflow formed at the air outlet. Therefore, a greater degree of freedom can be set for the air duct 33 on the housing 11, so as to flexibly adjust the outlet direction of the air duct 33 to form blowing airflows in different directions around the scanning port 113. Therefore, the air duct 33 on the housing 11 can be fixed only by the first fixture 34, and the air duct 33 between the first fixture 34 and the scanning host 50 is in a non-fixed state and can move freely.
  • the user manually rotates the spherical rotor of the first fixture 34 to adjust the placement position and angle of the air duct 33, thereby changing the outlet direction of the air duct 33 to form blowing airflows in different directions around the scanning port 113.
  • the air duct 33 is only fixed by the first fixer 34, the air duct 33 has a large degree of freedom and is prone to deviation, making it difficult for the user to control the direction of the air outlet of the air duct 33, resulting in an unstable blowing airflow.
  • the second fixer 35 can be added in this embodiment.
  • the fluid injection module 3 further includes a second fixture 35 configured to fix the air duct 33.
  • the second fixture 35 is disposed at a position of the housing 11 away from the scanning port 113; for example, the second fixture 35 is disposed at a position separated from the first fixture 34 by a specified distance, such as the middle part of the housing 11 as a whole, near the connection between the scanning host 50 and the scanning head 10, and the like.
  • the second fixture 35 may be a fixture that only serves to fix the air duct 33. In this way, from the second fixture 35 to the first fixture 34, the movable length of the air duct 33 is reduced, the flexibility and degree of freedom of the air duct 33 are limited, and the air duct 33 is easier to adjust and control.
  • the multiple second fixtures 35 are distributed along the arc curve on the surface of the scanning head 10.
  • there are three second fixtures 35 which are distributed in parallel on the arc curve on the surface of the scanning head 10 in the order of left, middle, and right.
  • the second fixture 35 includes a first component 351 and a second component 352 that can be opened and closed.
  • the first component 351 is fixed on the housing 11, and one end of the second component 352 is hingedly connected to the second component 352, specifically, by a bearing, a hinge, etc.; the hinged second component 352 can be opened or buckled on the first component 351.
  • the interiors of the first component 351 and the second component 352 are both concave arc shapes, and when the first component 351 and the second component 352 are buckled together, the concave arcs of the two constitute a complete circular area.
  • the air duct 33 can be placed in the concave arc of the first component 351, and then the second component 352 is buckled with the first component 351 to fix the air duct 33 in the circular area defined by the concave arc.
  • the air duct 33 can be fixed in any second fixer 35 , and the air duct 33 is subjected to stress between any second fixer 35 and the first fixer 34 , forming an air outlet direction different from the axial direction of the housing 11 .
  • the air duct 33 is fixed in the second fixture 35 on the right. Since the first fixture 34 is arranged in the middle position of the upper surface of the housing 11, and the second fixture 35 is arranged on the right; therefore, compared with the second fixture 35 on the right, the position of the first fixture 34 is biased to the left. Based on this, a leftward stress is generated on the air duct 33 connecting the first fixture 34 and the second fixture 35. Under the action of this stress, the spherical rotor of the first fixture 34 rotates to the left, driving the air outlet of the air duct 33 to deviate to the left by a certain angle, so that a blowing airflow biased to the left relative to the axial direction of the housing 11 is formed at the scanning port 113.
  • the air is transmitted from the fan, passes through the air duct 33 and passes through the second fixture 35 and the first fixture 34 on the right in sequence.
  • the air outlet of the air duct 33 is changed to be offset to the left by a certain angle, and the air outlet is directed downward at the same time, so that a blowing airflow biased to the lower left is formed at the scanning port 113.
  • the air duct 33 can form blowing airflows in the right, middle and left directions around the scanning port 113.
  • the three second fixtures 35 arranged in the left, middle and right directions are only examples, and there can be multiple settings in actual applications; for example, the tooth preparation shoulder is generally a circle around the prepared tooth, and theoretically, the blowing airflow needs to be blown in all directions. Therefore, four second fixtures 35 with different directions can be set to control the air duct 33 to form blowing airflows in four different directions.
  • the second fixture 35 is one; a slide rail 114 matching the arc curve of the surface of the scanning head 10 is installed on the housing 11, and the second fixture 35 slides in the slide rail 114.
  • the first component 351 in the second fixture 35 is installed in the slide rail 114, and can slide freely to the left and right in the slide rail 114.
  • the air duct 33 can be fixed in the second fixture 35.
  • the air duct 33 is subjected to stress between the second fixture 35 and the first fixture 34, forming an air outlet direction different from the axial direction of the shell 11.
  • first fixer 34 and the sliding second fixer 35 are used to control the direction of the air outlet of the air duct 33 in this embodiment.
  • the second fixer 35 can slide to any direction in the slide rail 114, so that the air outlet of the air duct 33 can be controlled to face more directions, and the angle difference between multiple directions can be conveniently and flexibly adjusted. In this way, the wind direction can be flexibly controlled according to needs, making the direction of the blowing airflow more accurate, greatly improving the accuracy and convenience of controlling the direction of the air outlet.
  • the outlet of the air duct 33 is controlled to face different directions by the first fixture 34 and the second fixture 35, thereby controlling the direction of the blowing airflow. Controlling the direction of the blowing airflow can accurately push away the gums at the scanning position and expose the shoulder under the gums, thereby improving the accuracy of the edge data of the preparation shoulder.
  • the fluid injection module 3 can be fixed to the outside or inside of the scanning host 50 and the scanning head 10; for example, the fluid injection module 3 can be fixed to the outer wall surface or the inner wall surface of the scanning host 50 and the scanning head 10.
  • the method of fixing to the outside can facilitate the installation and removal of the fluid injection module 3, and the method of fixing to the inside can reduce the occurrence of the fluid injection module 3 being offset or falling off due to external contact, and can also reduce the volume of the intraoral scanner 100.
  • the air duct 33 in the fluid injection module 3 is built into the tube sleeve 72; the first fixer 34 and the second fixer 35 in the fluid injection module 3 are arranged inside the tube sleeve 72 or pass through the tube sleeve 72.
  • the first fixer 34 and the second fixer 35 are arranged inside the tube sleeve 72; an operation window is opened at a position on the tube sleeve 72 corresponding to the first fixer 34 and the second fixer 35, and the operation window can facilitate the user to reach into the tube sleeve 72 to operate the first fixer 34 and the second fixer 35.
  • the first fixture 34 and the second fixture 35 pass through the tube sleeve 72; a cushion is provided at the joint between the tube sleeve 72 and the first fixture 34 and the second fixture 35.
  • the cushion can reduce the vibration between the first fixture 34 and the second fixture 35 and the tube sleeve 72 when operating, and can also play the role of sealing and dustproof.
  • the detachable gingival retraction component 7 can be quickly and conveniently installed on the scanning head 10 when it is necessary to collect data on the non-exposed subgingival area; the gingival retraction probe 71 located near the scanning port 113 is used to retract the gums and fully expose the subgingival shoulder, so that the three-dimensional morphological data of the edge line of the subgingival tooth 61 can be obtained during scanning, thereby improving the integrity of the scanning data.
  • the air duct 33 includes a main pipe 331 and a plurality of sub-pipes 332 extending from the main pipe 331 , and the plurality of sub-pipes 332 are configured to form blowing airflows in different directions around the scanning port 113 of the scanning head 10 .
  • the main pipe 331 is fixed on the scanning host 50, and the multiple sub-pipes 332 are fixed on the scanning head 10; the air inlet of the main pipe 331 is connected to the outside, and the air outlet of the main pipe 331 is connected to the air inlet of the multiple sub-pipes 332.
  • the air outlets of the multiple sub-pipes 332 are distributed around the scanning port 113 of the scanning head 10, and the air outlets of the multiple sub-pipes 332 face different directions to form blowing airflows in different directions.
  • the air duct 33 in this embodiment can be fixed to the scanning host 50 and the scanning head 10 by means of adhesion or the like. This fixing method is simple and low in cost.
  • the air duct 33 can be fixed to the outside or inside of the scanning host 50 and the scanning head 10, such as adhering the fluid injection module 3 to the outer wall surface or the inner wall surface of the scanning host 50 and the scanning head 10.
  • the method of fixing it to the outside can facilitate the installation and removal of the fluid injection module 3, and the method of fixing it to the inside can reduce the occurrence of the fluid injection module 3 being offset or falling off due to external contact, and can reduce the volume of the scanner 100.
  • this embodiment can provide a tube sleeve on the scanning head 10, and the tube sleeve has multiple sub-tubes 332 built therein.
  • the sleeve is a detachable structure independent of the scanning head 10 and the sub-tube 332.
  • the sub-tube 332 is fixed to the scanning head 10, and on this basis, the sleeve is installed on the scanning head 10 and the sub-tube 332, so that the sleeve strengthens the fixed relationship between the sub-tube 332 and the scanning head 10.
  • the pipe sleeve and the sub-pipe 332 are a combined structure and are separated from the scanning head 10.
  • the pipe sleeve and the sub-pipe 332 are combined into one body to fix the sub-pipe 332 on the pipe sleeve, and the pipe sleeve limits the position of the sub-pipe 332 and the direction of the air outlet of the sub-pipe 332.
  • the pipe sleeve with multiple sub-pipes 332 built in is installed on the scanning head 10, so that the air outlets of the multiple sub-pipes 332 are distributed around the scanning port 113 of the scanning head 10, and the air outlets of the multiple sub-pipes 332 are respectively oriented in different directions, forming air blowing airflows in different directions around the scanning port 113 of the scanning head 10.
  • the tooth preparation shoulder is generally a circle around the prepared tooth, so theoretically, the air flow needs to be blown open in all directions.
  • the sub-tubes 332 in this embodiment are generally four, facing four different directions, so as to dynamically push the gums in four directions to fully expose the subgingival shoulder, and then use structured light to project to the subgingival tooth 61 edge line area to obtain the three-dimensional morphological data of the subgingival tooth 61 edge line.
  • a main pipe 331 and a plurality of sub-tubes 332 are provided to blow air into the oral cavity to form a blowing airflow.
  • the blowing airflow can effectively retract the gums to fully expose the subgingival shoulder, thereby using structured light to project to the subgingival tooth edge line area and obtain the three-dimensional morphological data of the subgingival tooth edge line; at the same time, the blowing airflow can also reduce the interference factors that affect the scanning data in the scanning environment, so that better scanning imaging effects can be achieved in a complex intraoral environment, and the quality of the scanning data can be improved.
  • the air inlet of the main pipe 331 is connected to the outside world and inhales the outside air.
  • the air outlet of the main pipe 331 is connected to the air inlets of multiple sub-pipes 332, guiding the air into the sub-pipes 332, forming a blowing airflow in the sub-pipes 332, and the blowing airflow passes through the sub-pipes 332 and blows out at the air outlet of the sub-pipes 332.
  • the air outlets of the sub-pipes 332 are distributed around the scanning port 113 of the scanning head 10 and face different directions. Therefore, the blowing airflow blown out through the air outlets of the sub-pipes 332 can dynamically push the gums apart, shrink the gum margins, and expose the gingival sulcus.
  • the blowing airflow can blow away the debris in the reflector 12 of the scanning head 10 and the oral cavity, providing a clean environment for the current scanning area, thereby obtaining more complete and accurate scanning data.
  • this embodiment may include: a fan is provided at the air inlet of the main pipe 331.
  • the fan can increase the gas pressure and discharge the gas by inputting mechanical energy, forming a blowing airflow with a higher wind pressure.
  • blower in this embodiment can form a variety of blowing airflows with different wind pressure intensities by using the blower, which can better meet the requirements of different scenes for different wind pressures.
  • the plurality of sub-tubes 332 may all be narrow and slit-shaped tubular structures. It can be imagined that under the same air volume, the narrower the pipe, the greater the air pressure. Therefore, in this embodiment, the sub-tubes 332 are configured as narrow and slit-shaped tubular structures.
  • a wind direction control switch 8 is provided at the connection between the main pipe 331 and the plurality of sub-pipes 332 ; the wind direction control switch 8 is configured to control the opening and closing of each sub-pipe 332 to direct the blowing airflow toward the air outlet direction of the opened sub-pipe 332 .
  • the wind direction control switch 8 can control the opening and blocking of different sub-tubes 332, so that the opened sub-tubes 332 can form a blowing airflow, and the air outlets of different sub-tubes 332 correspond to different directions, thereby controlling the blowing airflow to different directions.
  • this embodiment controls the direction of the blowing airflow by controlling the opening and blocking of different sub-tubes 332 through the wind direction control switch 8. Controlling the direction of the blowing airflow can accurately push away the gums at the scanning position and expose the shoulder under the gums, thereby improving the accuracy of the edge data of the preparation shoulder.
  • the wind direction control switch 8 in this embodiment can be implemented in multiple forms.
  • the plurality of sub-tubes 332 are arranged in a ring shape, and the wind direction control switch 8 is a circular baffle structure composed of an opening component 81 and a shielding component 82 .
  • the wind direction control switch 8 is configured as a circular baffle structure consisting of an opening part 81 and a shielding part 82.
  • the opening part 81 is configured to connect the ventilation route between the sub-tube 332 and the main tube 331 to form a blowing airflow
  • the shielding part 82 is configured to block the ventilation route between the sub-tube 332 and the main tube 331.
  • the wind direction control switch 8 is turned.
  • the opening part 81 of the wind direction control switch 8 is placed on any sub-tube 332 among the multiple sub-tubes 332, the ventilation route between any sub-tube 332 and the main tube 331 is connected.
  • the sub-tubes 332 except any sub-tube 332 are blocked by the blocking part 82 and the ventilation route between them and the main tube 331 is blocked.
  • the air is transmitted from the fan, passes through the main pipe 331 and reaches the wind direction control switch 8.
  • the user uses the wind direction control switch 8 to select any one of the sub-pipes 332 to transmit the gas from the corresponding sub-pipe 332.
  • the wind direction control switch 8 may include a plurality of gears, each gear corresponding to a sub-pipe 332, and the sub-pipe 332 corresponding to the opening part 81 is switched by switching the gears.
  • the airflow direction of the blowing airflow at the scanning port 113 of the scanning head 10 is the direction in which the air outlet of the sub-pipe a is facing.
  • the user can control one of the sub-tubes 332 to blow air by controlling the wind direction control switch 8. Because the air outlets of the sub-tube 332 are arranged around the scanning port 113 of the scanning head 10 and face different directions, the wind direction can be flexibly controlled according to needs, so that the direction of the blowing airflow can be more accurate.
  • the plurality of sub-tubes 332 are arranged in a straight line or in an arc shape
  • the wind direction control switch 8 is a baffle structure including a plurality of movable baffles 83
  • the baffles 83 correspond one to one with the sub-tubes 332, and are configured to block the ventilation route between the sub-tubes 332 and the main pipe 331; any baffle 83 in the wind direction control switch 8 is moved to open the ventilation route between the corresponding sub-tube 332 and the main pipe 331.
  • the plurality of movable baffles 83 in the wind direction control switch 8 are located on the same straight line, simplifying the structure of the wind direction control switch 8.
  • the plurality of sub-tubes 332 when the plurality of sub-tubes 332 are arranged in an arc shape, the plurality of sub-tubes 332 fit the arc lines of the scanning head 10, making it easier to set a greater number of sub-tubes 332.
  • the baffle 83 in the wind direction control switch 8 opens or blocks the ventilation route between the sub-pipe 332 and the main pipe 331 by moving up and down.
  • the baffle 83 corresponding to the sub-pipe c in FIG. 16 or FIG. 17 moves to the top of the sub-pipe c to open the ventilation route between the sub-pipe c and the main pipe 331.
  • the other baffles 83 respectively block the ventilation routes between the sub-pipe a, sub-pipe b, sub-pipe d and the main pipe 331.
  • the baffle 83 opens or blocks the ventilation route between the sub-pipe 332 and the main pipe 331 by sliding in the slide groove.
  • the baffle 83 can slide to any position in the slide groove, that is, it can slide to fully open the sub-pipe 332 (refer to Figure 17), or it can slide to half open the sub-pipe 332 (refer to Figure 16). In this way, by controlling the sliding position of the baffle 83 in the slide groove, the air volume and/or wind pressure blown out of the sub-pipe 332 can be controlled.
  • the blocking piece 83 is a self-locking push-to-pop-up structure that automatically locks when pressed once and automatically pops up when pressed again.
  • air is transmitted from the fan, passes through the main pipe 331 and reaches the wind direction control switch 8 including a plurality of baffles 83.
  • the user uses the wind direction control switch 8 to move one or more baffles 83 to select one or more sub-pipes 332 to transmit the gas from the corresponding sub-pipes 332.
  • multiple baffles 83 can be moved each time to simultaneously open the ventilation routes between multiple sub-pipes 332 and the main pipe 331. Since the air outlets of different sub-pipes 332 face different directions, this method can form blowing airflows in multiple directions.
  • the fluid jet module 3 is used to form blowing airflows in different directions at the scanning port 113 of the scanning head 10, and the blowing airflow can blow away the interference factors that affect the scanning data, and provide a clean environment that is conducive to scanning in the complex intraoral environment; and the blowing airflow dynamically pushes away the gums to fully expose the subgingival shoulder, so that the originally invisible part of the subgingival can be projected with light, thereby obtaining the three-dimensional morphological data of the edge line of the subgingival tooth 61. Therefore, this scheme can achieve better scanning effects in a complex intraoral environment and improve the quality of the scanning data.
  • the air duct 3 includes a hose 333 and a hard tube 334, the hose 333 is connected to one end of the hard tube 334 and communicates with the hard tube 334, the hose 333 is located on one side of the scanning host 50, and the hard tube 334 is configured to be connected to the housing 11 to guide the fluid to flow at the scanning port 113.
  • the air duct 3 as a combination of the hose 333 and the hard tube 334, the flexibility of the hose 333 allows it to be flexibly arranged on the scanning host 50, and the rigidity of the hard tube 334 ensures its stability on the housing 11, so that the air duct 3 can adapt to different use environments and requirements, and can prevent the air duct 3 from shaking under force during use and interfering with the normal use of the oral scanning system, thereby improving the scanning effect of the oral scanning system.
  • the air duct 3 also includes a bending tube 335 extending into the housing 11.
  • the bending tube 335 is arranged at one end of the hard tube 334 away from the hose 333.
  • the bending tube 335 has an air jet 3351, and the inner diameter of the air jet 3351 gradually decreases along the jet direction. In this way, the air pressure when the airflow is blown out can be increased, so that the force of the airflow when blowing toward the gums can be guaranteed.
  • the bending tube 335 By extending the bending tube 335 into the housing 11, the bending tube 335 can be protected, and the bending tube 335 can be used to blow air toward the teeth and gums, so that the gums can be blown open and the tissues under the gums can be exposed, so that the subgingival tissues can be clearly scanned and a clear image of the subgingival tissues can be obtained. By blowing air, the patient does not feel pain and the operation is convenient.
  • the air duct 3 also includes a transition pipe 336, the two ends of which are respectively connected to the hard pipe 334 and the soft pipe 333, and the transition pipe 336 is bent and located at the connection between the scanning host 50 and the housing 11.
  • the transition pipe 336 is designed to be bendable, which increases the flexibility of the air duct 3 and enables it to adapt to different use environments and angle requirements, especially at the connection between the scanning host 50 and the housing 11. This design can reduce the impact of space limitations on the layout of the air duct 3.
  • the housing 11 is provided with a reflector 12, and the bending tube 335 is provided at one side of the reflector 12.
  • the outer periphery of the bending tube 335 is provided with a side nozzle 3352 connected with the nozzle 3351, and the side nozzle 3352 is arranged toward the reflector 12.
  • the nozzle 3351 ejects 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 62 or mist remaining on the reflector 12 to prevent the saliva 62 or mist on the reflector 12 from affecting the scanning accuracy, and the airflow can also blow away the saliva 62 splashed from the oral cavity and blow toward the gums on both sides of the teeth when it is blown out from the scanning port 113.
  • 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 reflector 12 can prevent the saliva 62 from dripping onto the reflector 12 and blow the saliva 62 away from the reflector 12, effectively reducing the risk of saliva 62 dripping onto the reflector 12 and causing a decrease in scanning accuracy, thereby improving the reliability of the scanning head 10, ensuring the scanning accuracy of the scanning head 10, and improving the reliability of the scanning head 10.
  • the angle ⁇ between the injection direction of the side nozzle 3352 and the reflector 12 is 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 reflector 12 can be taken into account, so that the air flow ejected from the side nozzle 3352 can effectively and reliably blow the saliva 62 dripping toward the reflector 12 away from the reflector 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 62 on the reflector 12 from affecting the scanning accuracy of the scanning head 10.
  • the side nozzle 3352 is fan-shaped, so that the gas ejected from the side nozzle 3352 can cover the reflector 12 more comprehensively, thereby more effectively preventing the saliva 62 from dripping onto the reflector 12 and improving the reliability of the scanning head 10.
  • the hose 333 is detachably connected to an adapter 90 away from the hard tube 334.
  • the adapter 90 includes an adapter body 91, an air inlet pipe 92, and an air outlet pipe 93.
  • the air inlet pipe 92 and the air outlet pipe 93 are respectively arranged on opposite sides of the adapter body 91 and are connected.
  • the air outlet pipe 93 is detachably connected to the fluid injection module 3, and the air inlet pipe 92 is connected to the dental chair.
  • the air inlet pipe 92 and the air outlet pipe 93 are both columnar structures.
  • One end of the adapter 90 is detachably connected to the hose 333, and the other end is configured to be connected to the dental chair.
  • This design allows the air duct 3 to be flexibly connected to the scanning host 50 and the dental chair; the air inlet duct 92 and the air outlet duct 93 are respectively arranged on opposite sides of the adapter body 91 and are connected.
  • This structural design ensures that the gas can flow smoothly inside the adapter 90, thereby forming a stable fluid flow at the scanning port 113 of the shell; the existence of the adapter body 91 provides a stable structure, ensuring the stability and reliability of the air duct 3 during connection and use.
  • the adapter 90 further includes a sealing gasket 94, which is sleeved on the outer periphery of the air inlet pipe 92 and connected to the side of the adapter body 91 away from the air outlet pipe 93.
  • the main function of the sealing gasket 94 is to provide an airtight connection to prevent gas leakage.
  • the sealing gasket 94 is sleeved on the outer periphery of the air inlet pipe 92 and connected to the side of the adapter body 91 away from the air outlet pipe 93.
  • Such a design can ensure the sealing of the connection between the air inlet pipe 92 and the dental chair to avoid gas leakage.
  • the sealing gasket 94 can prevent contaminants from entering the system and maintain the purity of the gas.
  • the outer periphery of the air outlet pipe 93 is provided with a plurality of step structures 931 at intervals, and the plurality of step structures 931 are arranged at intervals along the air outlet direction of the air outlet pipe 93.
  • the plurality of step structures 931 can increase the friction between the air outlet pipe 93 and the hose 333, and can make the connection between the air outlet pipe 93 and the hose 931 more stable.
  • the scanning head 10 also includes at least one first fixing member 101, which may be one, two or three, but is not limited thereto.
  • the first fixing member 101 is arranged on the housing 11, and the hard tube 334 is detachably arranged on the first fixing member 101.
  • the shape of the first fixing member 30 may be a circular ring or a square ring, and is arranged around the scanning head 400.
  • the first fixing member 101 provides a stable connection point, so that the hard tube 334 can be reliably connected to the housing 11, ensuring the stability and reliability of the air duct 3 during use; since the hard tube 334 is detachably arranged on the first fixing member 101, when replacement or maintenance is required, the hard tube 334 can be easily removed or installed from the first fixing member 101, which improves the convenience of maintenance; the use of the first fixing member 101 can reduce the risk of cross contamination, especially in a medical environment, and disposable use can ensure that each use is clean and safe.
  • the first fixing member 101 and the housing 11 can be detachably connected, such as a snap connection, a bolt connection, etc., or can be integrally formed.
  • the first fixing member 101 includes a first component 1011 configured to be connected to the housing 11.
  • a first groove 1011a is provided on the side of the first component 1011 away from the scanning head 10, and the hard tube 334 is clamped in the first groove 1011a.
  • the first fixing member 101 can stably fix the hard tube 334 on the housing 11 through the design of the first groove 1011a, ensuring that the air duct 3 will not be displaced due to movement or vibration during use, thereby ensuring the stability and reliability of the air duct 3; the design that the hard tube 334 is detachably arranged on the first fixing member 101 makes it possible to quickly and conveniently remove the hard tube 334 when the air duct 3 needs to be replaced or maintained, thereby improving the convenience of maintenance.
  • the first fixing member 101 also includes a second component 1012, a second groove 1012a is provided on one side of the second component 1012, one end of the second component 1012 is rotatably connected to the first component 1011, and the second component 1012a can be opened or buckled on the first component 1011.
  • the hard tube 334 is clamped in the first groove 1011a and the second groove 1012a.
  • the hose 333 is located on one side of the scanning host, wherein the hose 333 and the scanning host 50 may be unconnected or detachably connected.
  • the scanning head 10 further includes at least one second fixing member, which is detachably connected to the hose 333 and configured to fix the hose 333 on the scanning host 50, restricting the movement of the hose 333 to prevent the hose 333 from interfering with the doctor's operation.
  • the second fixing member may be one, two or three, but is not limited thereto. Specifically, the second fixing member may be a buckle.
  • the scanning host 50 can be wired or wireless.
  • the second fixing member can be set on the wire harness of the scanning host 50.
  • the second fixing member is set on the body of the scanning host 50.
  • the second fixing member and the scanning host 50 can be detachably connected, such as a snap connection, a bolt connection, etc., or can be integrally formed.
  • the present application proposes an oral scanning system, including a scanner, a data processing device and a dental chair.
  • the scanner 100 includes a scanning head 10 and a scanning host 50.
  • the scanning host 50 is detachably connected to one end of the scanning head 10;
  • 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;
  • the dental chair is connected to the scanner 100, and the dental chair and the scanner 100 are detachably connected.
  • the oral scanning system further comprises a dental three-in-one gun, which is connected to the dental chair and the fluid injection module 3 and is configured to control whether the dental chair supplies air to the fluid injection module.
  • the scanning head 400 can be manually controlled to scan while the dental chair can be controlled to supply air to or hold air to the fluid injection module 3 through the dental three-in-one gun.
  • the oral scanning system further includes a foot switch, which is connected to the dental chair and the fluid injection module 3 respectively, and is configured to control whether the dental chair supplies air to the fluid injection module 3.
  • a foot switch which is connected to the dental chair and the fluid injection module 3 respectively, and is configured to control whether the dental chair supplies air to the fluid injection module 3.
  • the fluid injection module 3 can be connected to any interface.
  • the operation can be completed by only one person, that is, a doctor can manually control the scanning head 400 to scan, and at the same time step on the foot switch to control the dental chair to supply air to the fluid injection module 3 or hold air.
  • a foot switch to supply air or hold air to the fluid injection module 3
  • a doctor can complete the scanning operation alone, and can obtain three-dimensional morphological data of the tooth edge line of the invisible part under the gums.

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  • Life Sciences & Earth Sciences (AREA)
  • Public Health (AREA)
  • Epidemiology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • Veterinary Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Biophysics (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Abstract

L'invention concerne une tête de balayage (10), un ensemble tuyau d'air, un dispositif de balayage (100) et un système de balayage intrabuccal. La tête de balayage (10) consiste en un boîtier (11) et un module de jet de fluide (3), un port de balayage (113) étant formé à une extrémité du boîtier (11); et le module de jet de fluide (3) étant disposé sur le boîtier (11) et étant configuré pour guider un fluide pour qu'il s'écoule au niveau du port de balayage (113). La présente divulgation peut acquérir des données de morphologie tridimensionnelle de lignes de bord de dent (61) de parties invisibles sous-gingivales, peut obtenir un effet de balayage relativement bon dans un environnement intrabuccal complexe et améliorer la qualité de données de balayage, et peut irriguer la salive (62) à l'opposé d'un port de balayage (113), réduire ou éviter le risque d'égouttement de la salive (62) dans une tête de balayage (113) et contaminer ainsi un dispositif de balayage (100), de telle sorte qu'une unité principale de balayage (50) peut enregistrer une image relativement claire, réduire un temps de balayage pour acquérir l'image claire et améliorer l'efficacité de balayage, de telle sorte qu'un appareil de traitement de données peut acquérir des données de dent (61) relativement précises, ce qui permet de calculer relativement précisément les données de morphologie tridimensionnelle d'une cavité buccale d'un patient.
PCT/CN2024/134855 2023-09-27 2024-11-27 Tête de balayage, ensemble tuyau d'air, dispositif de balayage et système de balayage intrabuccal Pending WO2025067571A1 (fr)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
CN202322650972.2U CN221730990U (zh) 2023-09-27 2023-09-27 一种口内三维扫描仪
CN202322643186.X 2023-09-27
CN202322643186.XU CN221730989U (zh) 2023-09-27 2023-09-27 一种口内三维扫描仪
CN202322650972.2 2023-09-27
CN202322644539.8U CN221770346U (zh) 2023-09-27 2023-09-27 一种口内三维扫描仪
CN202322644539.8 2023-09-27
CN202421054039.7 2024-05-14
CN202421054039.7U CN222777383U (zh) 2024-05-14 2024-05-14 扫描仪的扫描头、扫描仪和口腔扫描设备

Publications (1)

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WO2025067571A1 true WO2025067571A1 (fr) 2025-04-03

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WO (1) WO2025067571A1 (fr)

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CN104955418A (zh) * 2012-12-24 2015-09-30 牙医技术G·P·L·有限公司 用在龈下测量的装置及方法
KR101662566B1 (ko) * 2015-05-20 2016-10-05 주식회사바텍 광학부 교환에 의해 스캔 영역과 정밀도 변경이 가능한 구강스캐너
US20180071061A1 (en) * 2015-05-18 2018-03-15 Shlomo LIPOVETSKY Tip for an intraoral scanner
CN107851336A (zh) * 2015-04-29 2018-03-27 马里兰大学巴尔的摩分校 用于记录体腔的数字图像并呈现体腔的三维模型的设备和方法
KR20220118041A (ko) * 2021-02-18 2022-08-25 주식회사 휴비츠오스비스 에어 분사 노즐이 내장된 구강 스캐너
CN217365798U (zh) * 2022-05-16 2022-09-06 北京大学口腔医学院 一种获取牙预备体龈下边缘的口内三维扫描仪
CN221730989U (zh) * 2023-09-27 2024-09-20 先临三维科技股份有限公司 一种口内三维扫描仪
CN221730990U (zh) * 2023-09-27 2024-09-20 先临三维科技股份有限公司 一种口内三维扫描仪
CN221770346U (zh) * 2023-09-27 2024-09-27 先临三维科技股份有限公司 一种口内三维扫描仪

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104955418A (zh) * 2012-12-24 2015-09-30 牙医技术G·P·L·有限公司 用在龈下测量的装置及方法
CN107851336A (zh) * 2015-04-29 2018-03-27 马里兰大学巴尔的摩分校 用于记录体腔的数字图像并呈现体腔的三维模型的设备和方法
US20180071061A1 (en) * 2015-05-18 2018-03-15 Shlomo LIPOVETSKY Tip for an intraoral scanner
KR101662566B1 (ko) * 2015-05-20 2016-10-05 주식회사바텍 광학부 교환에 의해 스캔 영역과 정밀도 변경이 가능한 구강스캐너
KR20220118041A (ko) * 2021-02-18 2022-08-25 주식회사 휴비츠오스비스 에어 분사 노즐이 내장된 구강 스캐너
CN217365798U (zh) * 2022-05-16 2022-09-06 北京大学口腔医学院 一种获取牙预备体龈下边缘的口内三维扫描仪
CN221730989U (zh) * 2023-09-27 2024-09-20 先临三维科技股份有限公司 一种口内三维扫描仪
CN221730990U (zh) * 2023-09-27 2024-09-20 先临三维科技股份有限公司 一种口内三维扫描仪
CN221770346U (zh) * 2023-09-27 2024-09-27 先临三维科技股份有限公司 一种口内三维扫描仪

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