Layered disposable oral cavity digital impression instrument scanning head

Abstract

The invention discloses a layered disposable oral cavity digital impression instrument scanning head. The layered disposable oral cavity digital impression instrument scanning head is characterized by comprising a fixed shell and a disposable outer shell arranged on the shell in a sleeving mode, and the fixed shell is fixedly connected with a handheld piece. According to the layered disposable oral cavity digital impression instrument scanning head, through the layered disposable design, equipment does not need to be disinfected before digital scanning is carried out on a patient, and only the disposable part of the outer layer of the scanning head needs to be replaced, so that the oral digital impression instrument can be conveniently used in the market; a novel anti-fogging module is arranged in the scanning head, the anti-fogging effect is good, and the risk that the final scanning precision is affected due to lens fogging is reduced; the fixed connection design of the fixed shell and the handheld piece is optimized, a strong magnetic assembly or a plug pin type and the like are introduced, and use by a user is facilitated; and a scanning head type detection module is arranged on the scanning head, and the model of the currently installed scanning head is judged by detecting resistance changes brought by scanning heads of different models.

Description

technical field [0001] The present application relates to the field of oral scanners, in particular to a layered and disposable oral digital impression scanner head. Background technique [0002] In recent years, people pay more and more attention to oral health and dental aesthetics. In the fields of orthodontics, implants and restorations, dental digital impression instruments are more convenient and quicker than traditional impressions in the process of use, and are highly accepted by patients. In the traditional oral clinical process, the dentist needs to take an impression of the patient's teeth, and then send the impression to the processing center, the processing center turns the impression into a plaster model, and uses a desktop scanner to convert the plaster model into a 3D model , and then the processing center designs orthodontic braces, implants or dentures for the patient on the basis of the three-dimensional model, and then sends the finished product to the c...

AI Technical Summary

Problems solved by technology

[0005] (2) The scanning efficiency is high, and the long-term oral opening and closing will affect the comfort of the patient, so it is necessary to quickly obtain the three-dimensional digital model of the oral cavity;

The scanning head requires specific disinfection tools, which increases the cost of use and some smaller clinics cannot meet the corresponding disinfection requirements

If the disinfection and sterilization are not complete, it will bring the risk of cross-infection to patients

[0010] 2) The existing fixed installation method of the integral scanning head and the handpiece may have an impact on the accuracy of the final scanned 3D model, and at the same time, there are certain problems in its stability after multiple installations; its fixation with the handpiece The installation method relies on the shrapnel to pop up the fixed scanning head. After cleaning, disinfection and sterilization, when the scanning head is installed multiple times, the elastic force of the multiple shrapnel that fix the scanning head is not completely consistent, which may cause the scanning head to be installed on the handle. There will be a certain inclination on the upper surface, which will lead to insufficient accuracy of the 3D model of the patient's teeth scanned by the scanning head of the oral digital impression machine, which will affect the lack of matching between the dentures, restorations or orthodontic braces made based on the 3D model and the patient, resulting in rework ;

[0011] In addition, since the scanning head must be cleaned, disinfected and sterilized before each patient is digitally scanned, it is inevitable that the scanning head needs to be plugged and pulled out multiple times. There is a risk of the head falling off during use

[0012] 3) In the existing scan head design, some anti-fogging modules will be added inside the scan head, and the design including the heat dissipation module will bring higher scanning head replacement costs

Generally, the scanning head needs to be replaced with a new scanning head after being sterilized by special equipment and exceeding a certain number of times, and the scanning head is generally equipped with an anti-fogging device module, which invisibly increases the use cost

[0013] 4) In the existing design of the scanning head, the design effect of the anti-fogging module in some scanning heads is not good. If the heating temperature of the lens is too high, the surface temperature of the oral digital impression instrument will be too high. On the one hand Does not meet the requirements of relevant electrical safety standards (the temperature range of the equipment surface is limited)

On the other hand, it will also reduce the patient's experience; if the heating temperature of the lens is insufficient, the anti-fogging effect will be poor, which will affect the imaging effect

Images