Dental irrigator detection system and method

Abstract

The present disclosure provides a dental irrigator detection system and method. The detection system comprises a sampling device, a sensing device, and a controller. The sampling device is configured for collecting a fluid sprayed by a dental irrigator; the sensing device is configured for detecting a sensed electrical signal representing the content of bubbles in the fluid; and the controller obtains a bubble content parameter according to the sensed electrical signal, and obtains a detection result according to the bubble content parameter. In the embodiments of the present disclosure, by means of detecting the content of bubbles in the fluid sprayed by the dental irrigator and determining the detection result of the dental irrigator on the basis of the bubble content parameter, the inhibition and cleaning ability of the dental irrigator against subgingival anaerobic bacteria can be more accurately and objectively quantified, thereby reflecting the cleaning ability of the dental irrigator to the oral cavity of a user and its disease prevention ability, and providing objective and effective guidance for manufacturers and users.

Description

Toothwasher detection system and method

[0001] Cross-reference to related applications

[0002] The present disclosure claims priority to Chinese Patent Application No. 202410870829.0, filed on June 28, 2024, entitled “Toothwasher detection system and method”, the entire contents of which are incorporated herein by reference in its entirety. TECHNICAL FIELD

[0003] The present disclosure relates to the technical field of detection devices, in particular to a toothwasher detection system and method. BACKGROUND

[0004] With the concept of oral care being deeply rooted in people, people pay more and more attention to personal oral health, and various oral care tools follow, of which toothwashers are one. Toothwashers clean the food residues, bacteria and dental plaque on the surface of teeth and interdental spaces through high-speed and high-pressure water flow spraying, so as to achieve the purpose of cleaning the oral cavity and preventing oral diseases.

[0005] In related technologies, there are various brands and models of toothwashers, and the effects of oral cleaning and care are uneven. At present, the performance test of toothwashers mainly relies on human efficacy tests by third-party institutions, which is more dependent on the subjective feelings of testers, and lacks objective and effective evaluation standards, which leads to uneven cleaning effects of toothwashers and affects people's oral health. SUMMARY

[0006] The present disclosure provides a toothwasher detection system and method.

[0007] In a first aspect, the present disclosure provides a toothwasher detection system, comprising:

[0008] a sampling device arranged at a nozzle of a toothwasher, for collecting fluid sprayed by the toothwasher through the nozzle;

[0009] a sensing device arranged at the sampling device, for detecting a sensing electric signal in the process of the toothwasher spraying the fluid, the sensing electric signal being a signal representing the bubble content in the fluid; and

[0010] a controller, for receiving the sensing electric signal of the sensing device, and performing data processing on the sensing electric signal to obtain a bubble content parameter in the fluid, obtaining an oral care ability parameter based on the bubble content parameter, and determining a detection result of the toothwasher according to the oral care ability parameter.

[0011] In some embodiments, the sampling device comprises a liquid flow cell, the liquid flow cell is sleeved on the nozzle, and a liquid flow direction of the liquid flow cell is the same as a fluid direction of the nozzle;

[0012] The sensing device comprises a laser emitting end and a light receiving end, the laser emitting end and the light receiving end are arranged on two sides of the liquid flow cell, the laser emitting end is used for emitting laser towards the liquid flow cell, the light receiving end is used for receiving light signals passing through the fluid, and the sensing electric signal is generated according to the light signals.

[0013] In some embodiments, the sampling device comprises a liquid container, the liquid container is arranged on the nozzle, and the liquid container is used for collecting the fluid emitted by the nozzle;

[0014] The sensing device comprises an ultrasonic transducer, the ultrasonic transducer is arranged in the liquid container, the ultrasonic transducer is used for emitting ultrasonic waves to the liquid container and receiving sound wave signals reflected and / or scattered by the fluid, and the sensing electric signal is generated according to the received sound wave signals.

[0015] In some embodiments, the detection system further comprises a camera, the camera is used for collecting an image sequence in a process in which the tooth cleaner emits the fluid through the nozzle;

[0016] An image processing module is arranged in the camera or the controller, the image processing module is used for image detection on the image sequence, determination of a fluid width parameter of the fluid at a first distance from the nozzle, and determination of an outlet size parameter of the nozzle;

[0017] The controller is configured to determine a fluid fit degree of the tooth cleaner according to the fluid width parameter and the outlet size parameter, and determine the detection result of the tooth cleaner according to the fluid fit degree and the oral care ability parameter.

[0018] In some embodiments, the fluid width parameter, the outlet size parameter, and the fluid fit degree of the tooth cleaner satisfy the following formula:

[0019] Wherein, K1 represents the fluid fit degree, W represents the fluid width parameter, D represents the outlet size parameter, Y represents a tooth gap length, and Z represents a periodontal pocket depth.

[0020] In some embodiments, the detection system further comprises a measuring device, the measuring device is used for detecting a bending angle between the nozzle and a flow channel connected to the nozzle, and a length of the nozzle;

[0021] The controller is configured to determine a use comfort degree of the oral irrigator according to the bending angle and the length of the nozzle, and determine the detection result of the oral irrigator according to the fluid fit degree, the use comfort degree, and the oral care ability parameter.

[0022] In some embodiments, the bending angle, the length of the nozzle, and the use comfort degree satisfy the following formula:

[0023] wherein K2 represents the use comfort degree, A represents the bending angle, B represents the length of the nozzle, and R represents the dental arch curvature of the dental model.

[0024] In some embodiments, the detection system further comprises a frequency detection device for detecting a pulse frequency of the fluid ejected by the oral irrigator, and a water pressure detection device for detecting a maximum pressure of the fluid ejected by the oral irrigator.

[0025] The controller is configured to determine an oral cleaning ability parameter of the oral irrigator according to the pulse frequency and the maximum pressure, and determine the detection result of the oral irrigator according to the fluid fit degree, the use comfort degree, the oral cleaning ability parameter, and the oral care ability parameter.

[0026] In some embodiments, the pulse frequency, the maximum pressure, and the oral cleaning ability parameter satisfy the following formula:

[0027] wherein K3 represents the oral cleaning ability parameter, P represents the maximum pressure, F represents the pulse frequency, and L represents a distance from a nozzle outlet of the oral irrigator to a tooth surface or a gum surface.

[0028] In some embodiments, the frequency detection device comprises a stroboscope or an electronic pulse signal collector, and the water pressure detection device comprises a water pressure gauge or a pressure scale.

[0029] In some embodiments, the controller is configured to perform a weighted fusion processing on the fluid fit degree, the use comfort degree, the oral cleaning ability parameter, and the oral care ability parameter according to a first coefficient corresponding to the fluid fit degree, a second coefficient corresponding to the use comfort degree, a third coefficient corresponding to the oral cleaning ability parameter, and a fourth coefficient corresponding to the oral care ability parameter, to obtain the detection result.

[0030] In some embodiments, the first coefficient, the fluid fit degree, the second coefficient, the use comfort degree, the third coefficient, the oral cleaning ability parameter, the oral care ability parameter, and the fourth coefficient satisfy the following formula: M=αK1+βK2+ωK3+θK4

[0031] wherein M represents the detection result, α represents the first coefficient corresponding to the fluid fit degree K1, β represents the second coefficient corresponding to the use comfort degree K2, ω represents the third coefficient corresponding to the oral cleaning ability parameter K3, and θ represents the fourth coefficient corresponding to the oral care ability parameter K4.

[0032] In some embodiments, the value of the oral care ability parameter is equal to the value of the bubble content parameter.

[0033] In some embodiments, the detection system further comprises a clamping device, the clamping device comprising a first clamping part and a second clamping part, the first clamping part being used for clamping the water pick, and the second clamping part being used for clamping the dental model.

[0034] In a second aspect, the disclosure provides a water pick detection method, comprising:

[0035] During the operation of the water pick, the fluid ejected by the water pick is collected, and an induced electric signal in the process of the water pick ejecting the fluid is detected by an induction device, the induced electric signal representing a signal of the bubble content in the fluid;

[0036] According to the induced electric signal, a bubble content parameter in the fluid is determined, an oral care ability parameter is obtained based on the bubble content parameter, and a detection result of the water pick is determined according to the oral care ability parameter.

[0037] In some embodiments, the detection method further comprises:

[0038] An image sequence in the process of the water pick ejecting the fluid is collected;

[0039] An image detection is performed on the image sequence to determine a fluid width parameter of the fluid at a first distance from the nozzle of the water pick, and an outlet size parameter of the nozzle;

[0040] According to the fluid width parameter and the outlet size parameter, a fluid fit degree of the water pick is determined;

[0041] The determination of the detection result of the water pick according to the oral care ability parameter comprises:

[0042] According to the fluid fit degree and the oral care ability parameter, the detection result of the water pick is determined.

[0043] In some embodiments, the detection method further comprises:

[0044] collecting a bending angle between the nozzle and a flow channel connected to the nozzle, and a length of the nozzle;

[0045] determining a use comfort degree of the water pick according to the bending angle and the length of the nozzle;

[0046] The determining the detection result of the water pick according to the oral care ability parameter comprises:

[0047] The determining the detection result of the water pick according to the fluid fit degree, the use comfort degree and the oral care ability parameter.

[0048] In some embodiments, the detection method further comprises:

[0049] detecting a pulse frequency of the water pick spraying the fluid, and a maximum pressure of spraying the fluid;

[0050] determining an oral cleaning ability parameter of the water pick according to the pulse frequency and the maximum pressure;

[0051] The determining the detection result of the water pick according to the oral care ability parameter comprises:

[0052] The determining the detection result of the water pick according to the fluid fit degree, the use comfort degree, the oral cleaning ability parameter and the oral care ability parameter.

[0053] In some embodiments, the determining the detection result of the water pick according to the fluid fit degree, the use comfort degree, the oral cleaning ability parameter and the oral care ability parameter comprises:

[0054] According to the first coefficient corresponding to the fluid fit degree, the second coefficient corresponding to the use comfort degree, the third coefficient corresponding to the oral cleaning ability parameter and the fourth coefficient corresponding to the oral care ability parameter, the fluid fit degree, the use comfort degree, the oral cleaning ability parameter and the oral care ability parameter are weighted and fused to obtain the detection result.

[0055] In some embodiments, the value of the oral care ability parameter is equal to the value of the bubble content parameter. BRIEF DESCRIPTION OF DRAWINGS

[0056] In order to more clearly illustrate the technical solutions in the specific embodiments of the present disclosure or the prior art, the accompanying drawings needed to be used in the specific embodiments or prior art description will be briefly introduced as follows. Obviously, the accompanying drawings in the following description are some embodiments of the present disclosure, and for those skilled in the art, other drawings can also be obtained from these accompanying drawings without creative effort.

[0057] FIG. 1 is a structural schematic diagram of a tooth washer in some embodiments of the present disclosure.

[0058] FIG. 2 is a structural schematic diagram of a tooth mold in some embodiments of the present disclosure.

[0059] FIG. 3 is a structural diagram of human teeth and periodontal tissues.

[0060] FIG. 4 is a schematic diagram of an application scenario of a tooth washer.

[0061] FIG. 5 is a schematic diagram of healthy gums, gingivitis and periodontitis.

[0062] FIG. 6 is a structural schematic diagram of a tooth washer and a tooth mold in some embodiments of the present disclosure.

[0063] FIG. 7 is a structural block diagram of a detection system in some embodiments of the present disclosure.

[0064] FIG. 8 is a partial structural schematic diagram of a detection system in some embodiments of the present disclosure.

[0065] FIG. 9 is a partial structural schematic diagram of a detection system in some embodiments of the present disclosure.

[0066] FIG. 10 is a structural block diagram of a detection system in some embodiments of the present disclosure.

[0067] FIG. 11 is a schematic diagram of the width of two different tooth washer jet flows.

[0068] FIG. 12 is a flowchart of a detection method in some embodiments of the present disclosure.

[0069] FIG. 13 is a flowchart of a detection method in some embodiments of the present disclosure.

[0070] FIG. 14 is a flowchart of a detection method in some embodiments of the present disclosure.

[0071] FIG. 15 is a flowchart of a detection method in some embodiments of the present disclosure. DETAILED DESCRIPTION

[0072] The technical solutions of the present disclosure will be described clearly and completely in combination with the drawings. Obviously, the described embodiments are part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present disclosure. In addition, the technical features involved in different embodiments of the present disclosure described below can be combined with each other as long as they do not conflict with each other.

[0073] Nowadays, people pay more and more attention to oral health, and various oral care tools are also increasing, such as electric toothbrushes, dental floss, portable oral irrigators, etc. The basic working principle of the oral irrigator is to use high-speed and high-pressure water flow to remove food residues, bacteria and dental plaque on the surface of teeth and interdental spaces, so as to achieve the purpose of cleaning the oral cavity and preventing oral diseases.

[0074] For example, FIG. 1 shows the appearance structure of a portable oral irrigator. Referring to FIG. 1, the oral irrigator mainly includes a body 10, a nozzle 20 and a water tank 30. The body 10 refers to the basic main structure of the oral irrigator, and the inside is integrated with electrical elements such as a battery, a circuit board, a negative pressure water pump, etc. The appearance surface of the body 10 is provided with touch or physical buttons, which can realize functions such as switching, gear adjustment, etc. The water tank 30 is used to store water, and the user can pour liquid into the water tank 30, so that when the oral irrigator is turned on, the negative pressure water pump in the body 10 works to pump out the liquid in the water tank 30 and then sprays it out from the nozzle 20 after being pressurized, generating high-speed and high-pressure water flow.

[0075] In order to better fit the user's oral cavity and teeth, the nozzle 20 generally includes two parts, namely a flow channel 21 and a nozzle 22, and the flow channel 21 and the nozzle 22 have a certain bending angle, so that when the user holds the oral irrigator, the water flow sprayed by the nozzle 22 can be aligned with the interdental space or the gum at a better angle.

[0076] In the related art, there are various brands and models of oral irrigators, and the oral cleaning and care effects are uneven, which brings great difficulty to users in purchasing products. At present, due to the lack of industry evaluation standards for oral irrigators, the pre-delivery detection of oral irrigators is generally carried out by each manufacturer independently, for example, the manufacturer carries out full inspection and sampling inspection on the service life, single working time, water flow impact force, failure rate, etc. of the oral irrigator. The detection of oral irrigators after delivery mainly depends on third-party evaluation agencies, for example, the third-party evaluation agencies detect and compare the water flow impact force, water flow pulse frequency, etc. of oral irrigators of different brands and models, and give the test results.

[0077] However, the above evaluation methods mainly test the hardware parameters of the water flosser device itself, and it is difficult to give objective guidance for the specific oral cleaning and care effect. For example, the greater the water flow impact force of the water flosser, the better the cleaning effect on the oral cavity, but the comfort of the user will also decrease. The water flow with too large impact force can even cause the user's gum bleeding, periodontal disease and other oral diseases. Therefore, it is difficult to objectively evaluate the oral care effect of the water flosser by only comparing the hardware parameters of the water flosser.

[0078] A more common solution can use human efficacy tests, that is, a certain number of subjects are selected, and these subjects use different water flossers or use different gears of the same water flosser for oral cleaning within a test period. Then, by comparing the oral cleaning effect and combining the subjective feelings of the subjects, the oral care ability of the water flosser is determined.

[0079] On the one hand, the process cost of such human efficacy test is high, the test period is long, and it is more dependent on the subjective feelings of the subjects, which is obviously affected by individual differences, and the test results are not highly referable. On the other hand, such human efficacy test is not suitable for the research and development stage of the product. Due to the lack of objective and efficient test standards, the product needs to be repeatedly interrupted in the research and development stage for human test, which greatly delays the product iteration period.

[0080] Based on the above defects, the embodiments of the present disclosure provide a water flosser detection system and method, which aims to start from the bottom logic of oral preventive medicine, quantitatively express the cleaning ability of the water flosser for the gums and the ability to prevent dental caries and periodontal disease, and thus objectively and efficiently detect the oral care and disease prevention ability of the water flosser.

[0081] In some embodiments, the present disclosure provides a water flosser detection system, which mainly simulates the real water flossing process of the user by using the water flosser to be detected, and obtains the detection results for objectively reflecting the cleaning ability and oral disease prevention ability of the water flosser by detecting and quantitatively expressing one or more dimensions of the water flosser.

[0082] Before describing the water flosser detection system of the embodiments of the present disclosure, first, the working scene of the water flosser and the meanings of some terms in the following text are described in combination with FIGS. 2 to 5.

[0083] Referring to FIG. 2, the oral cavity of a user includes gums 1 and teeth 2, and the teeth 2 grow in the gums 1. The teeth 2 include a part growing inside the gums 1 and a part growing outside the gums 1. In combination with FIG. 3, the part of the teeth 2 growing inside the gums 1 is referred to as "sub-gingival", and the part growing outside the gums 1 is referred to as "supra-gingival", that is, the "supra-gingival" part of the teeth 2 can be directly seen by the human eye.

[0084] The gap between two adjacent teeth is a "tooth gap" or "tooth gap", and the position of the tooth gap close to the gum is a "gum papilla", as shown in FIG. 2, the area of the gum papilla 3 circled by the dotted line is approximately triangular, so it is also called "gum triangular area". Referring to FIG. 4, the vertical distance from the top of the tooth gap to the top of the gum triangular area is the tooth gap length Y.

[0085] Continuing to refer to FIG. 4, when a user uses the oral irrigator to clean the oral cavity, the user generally needs to keep the water flow sprayed by the nozzle 22 perpendicular to the front side of the tooth 2 or the gum 1, and make the water flow contact the user's oral cavity at a predetermined distance from the water outlet of the nozzle 22, for example, generally keep the water outlet of the nozzle 22 2-3 mm away from the tooth surface. Then the user can clean different positions of the oral cavity by moving the position of the nozzle 22 of the oral irrigator.

[0086] In the related art, the cleaning effect of the oral irrigator is mainly evaluated based on the water flow pressure and pulse frequency of the nozzle 22. The water flow pressure refers to the impact force or impact pressure of the water flow sprayed by the oral irrigator on the user's oral cavity. Generally, the greater the water flow pressure, the better the cleaning effect, but the higher the risk of injury and discomfort to the user's oral cavity. The pulse frequency refers to the fact that the water flow of the oral irrigator is not continuously sprayed, but is periodically sprayed at a certain pulse frequency. The pulse frequency can be expressed in times per minute. Generally, the higher the pulse frequency, the more water flow the oral irrigator sprays in the same time, and thus the better the cleaning effect. However, a too high pulse frequency can greatly increase the risk of injury to the user's oral cavity, and also requires a higher hardware requirement for the oral irrigator and a higher power consumption.

[0087] It can be seen that the water flow pressure and pulse frequency described above cannot objectively and effectively reflect the actual use effect of the oral irrigator, and cannot reflect the ability of the oral irrigator to relieve, treat and prevent oral diseases.

[0088] In the present disclosure, through a large number of studies on the oral cavity environment of the human body, it is found that there are very obvious differences between the supragingival and subgingival environments, which are manifested as great differences in the characteristics of the bacteria attached to the supragingival and subgingival regions.

[0089] Taking periodontal disease as an example, periodontal disease is an oral disease occurring at the gum periodontal pocket, mainly caused by bacterial growth in the periodontal pocket. Severe periodontal disease can cause irreversible loosening and shedding of teeth. For example, FIG. 5 shows tooth cross-sectional views of different degrees of periodontal disease. As shown in FIG. 5, different degrees of periodontal disease cause different depths of the gingival sulcus of the user's periodontal pocket, so that the more severe the periodontal disease, the more likely it is to cause loosening or even shedding of the tooth root.

[0090] It is found through the research on the flora of human oral cavity that the bacteria existing on the gingival of human oral cavity are mainly aerobic bacteria and microaerophilic bacteria, and the oxygen tension of the subgingival of human oral cavity (inside the periodontal pocket) is relatively low, which is an anaerobic environment, and is beneficial to the survival of anaerobic bacteria. Therefore, the bacteria existing in the subgingival of human oral cavity are mainly anaerobic bacteria. In the process of tooth cleaning, the inside of the periodontal pocket is rarely washed or brushed, so that some anaerobic bacteria are difficult to be removed. With the increase of anaerobic bacteria in the periodontal pocket, the degree of gingival disease and periodontal disease gradually increases.

[0091] Therefore, in order to effectively remove or reduce the anaerobic flora in the subgingival, the content of micro-bubbles in the water flow sprayed by the tooth cleaner is crucial. The micro-bubbles carry oxygen, so that the oxygen can enter the subgingival (such as the inside of the periodontal pocket) with the fluid to remove or reduce the anaerobic flora in the subgingival, so as to achieve the purpose of preventing or treating oral diseases and relieving disease symptoms. At the same time, compared with pure water flow, the fluid mixed with micro-bubbles has higher comfort for the impact on the user's oral cavity, reduces the harm to the user's oral cavity on the basis of ensuring high cleaning power, and improves the user experience.

[0092] Therefore, the detection system and method of the tooth cleaner in the embodiment of the present disclosure can quantitatively express the detection result of the tooth cleaner by combining the bubble content in the fluid sprayed by the tooth cleaner when detecting a certain tooth cleaner to be detected, so as to accurately reflect the cleaning effect and oral care ability of the tooth cleaner. The following will be described in combination with FIG. 6 and FIG. 7.

[0093] Referring to FIG. 6, in the embodiment of the present disclosure, any brand or model of tooth cleaner can be provided as a tooth cleaner to be detected, or a certain function gear of the tooth cleaner can be taken as a detection object, so that the detection system or method of the embodiment of the present disclosure is used to detect different function gears of the same tooth cleaner. Those skilled in the art can understand this, and the present disclosure will not be described again.

[0094] Continuing to refer to FIG. 6, in the embodiment of the present disclosure, a standard tooth model can be provided to simulate a real user's oral cavity. The tooth model refers to a standard tooth model imitating human oral cavity and made of high molecular material. The tooth model generally includes a gingival 1 and a tooth 2. The gingival can be made of, for example, high molecular material, and the tooth can be made of, for example, zirconium dioxide, metal or the like.

[0095] It is worth noting that the tooth model in the embodiment of the present disclosure can be a tooth model obtained by imitating a standard adult oral cavity, or a tooth model obtained by imitating an oral cavity of a teenager, a child, an old person or the like. By replacing different tooth models, the applicability of the tooth cleaner to users of different age groups can also be tested respectively. Those skilled in the art can understand this, and the present disclosure will not be described again.

[0096] Referring to FIG. 7, in some embodiments, the detection system of the present disclosure includes a sampling device 100, a sensing device 200, and a controller 300.

[0097] The sampling device 100 can be arranged on the nozzle of the dental cleaner, and during the dental cleaning process, the sampling device 100 can collect the fluid sprayed through the nozzle of the dental cleaner. The sensing device 200 can be arranged on the sampling device 100, so that the sensing device 200 can perform corresponding sensing operations on the fluid sampled by the sampling device 100, to detect the bubble content in the fluid, and obtain corresponding sensing electrical signals under different bubble contents.

[0098] It is worth noting that the sampling device 100 and the sensing device 200 can be configured with corresponding hardware according to the specific bubble detection principle. For example, in one example, when laser detection is used, the sampling device 100 can be a liquid flow cell arranged on the nozzle, and the sensing device can be a laser emitting end and a light receiving end, which generates a sensing electrical signal according to the change of light. For another example, when ultrasonic wave detection is used, the sampling device 100 can be a liquid container arranged on the nozzle, which is used to collect the sprayed fluid, and the sensing device can be an ultrasonic transducer arranged on the liquid container, which generates a sensing electrical signal according to the change of sound wave.

[0099] The controller 300 refers to the processing core of the detection system, which can include a processor and a memory.

[0100] The processor can be of any type, with one or more processing cores. It can perform single-threaded or multi-threaded operations, for parsing instructions to perform operations such as obtaining data, performing logical operation functions, and issuing operation processing results.

[0101] The memory can include a non-volatile computer-readable storage medium, such as at least one magnetic disk storage device, a flash memory device, a distributed storage device arranged remotely from the processor, or other non-volatile solid-state storage device. The memory can have a program storage area for storing non-volatile software programs, non-volatile computer executable programs, and modules, for the processor to invoke to cause the processor to perform one or more method steps described below. The memory can also include a volatile random access memory or a storage portion such as a hard disk, as a data storage area, to store the operation processing results and data output by the processor.

[0102] In the embodiments of the present disclosure, the controller 300 can receive the sensing electrical signal of the sensing device, and determine the bubble content parameter in the fluid sprayed by the dental cleaner by performing data processing on the sensing electrical signal.

[0103] In some examples, the above process can be performed only once for a fluid pulse, so as to detect the bubble content parameter of the single fluid pulse. The above process can also be performed for multiple fluid pulses respectively, so as to detect the bubble content parameters of the multiple fluid pulses, and then obtain the final bubble content parameter by averaging, weighted averaging, summation, or the like.

[0104] It can be understood in combination with the foregoing that the bubble content parameter in the fluid reflects the inhibitory and cleaning ability of the dental cleaner for subgingival anaerobic flora, and further reflects the cleaning and disease prevention ability of the dental cleaner for the user's oral cavity.

[0105] In some examples of the present disclosure, the controller 300 can obtain the final detection result for expressing the cleaning and disease prevention ability of the dental cleaner according to the bubble content parameter of the fluid ejected by the dental cleaner, or can further obtain the detection result by comprehensively quantifying aspects such as the fluid width, nozzle bending angle, fluid pressure, pulse frequency, and the like, which will be described below.

[0106] As can be understood from the above, in the examples of the present disclosure, the bubble content of the fluid ejected by the dental cleaner is detected, and the detection result of the dental cleaner is determined based on the bubble content parameter, so that the inhibitory and cleaning ability of the dental cleaner for subgingival anaerobic flora can be more accurately and objectively quantified and expressed, and further reflects the cleaning and disease prevention ability of the dental cleaner for the user's oral cavity, thereby providing objective and efficient guidance for manufacturers and users. In addition, in the examples of the present disclosure, the dental cleaner detection process is standardized, so that long-term observation tests on a large number of subjects are not required, the detection efficiency is improved, and the detection cost is reduced.

[0107] In some examples, the method for detecting the bubble content in the fluid ejected by the dental cleaner can use a laser detection method, which will be described below with reference to FIG. 8. Referring to FIG. 8, in some examples, the collection device 100 includes a liquid flow cell 101, and the sensing device 200 includes a laser emitting end 201 and a light receiving end 202.

[0108] The liquid flow cell 101 is an open container with a liquid flow channel. Referring to FIG. 8, the liquid flow cell 101 can be fitted on the nozzle 22 of the dental cleaner, and the liquid flow direction of the liquid flow cell 101 is the same as the direction of the fluid ejected by the nozzle 22, so that the fluid ejected by the nozzle 22 can pass through the liquid flow cell 101. In the examples of the present disclosure, the liquid flow cell 101 can be made of transparent material, for example, the liquid flow cell 101 can be enclosed by transparent glass or transparent acrylic plate. The laser emitting end 201 and the light receiving end 202 of the sensing device 200 are arranged on opposite sides of the liquid flow cell 101, and the laser emitting end 201 and the light receiving end 202 are arranged opposite to each other.

[0109] When the detection is performed, the tooth cleaner can be controlled to work normally, so that the nozzle 22 sprays fluid in the form of fluid pulses, the liquid flow cell 101 can collect the fluid pulses, and then the laser emitting end 201 emits a laser signal, the laser signal passes through the fluid in the liquid flow cell 101, and the bubbles in the fluid cause scattering of light, so that the laser signal reaches the light receiving end 202 after reflection, refraction and scattering of the water flow and the bubbles. The light receiving end 202 converts the received light signal into an induced electric signal and sends the induced electric signal to the controller 300. The controller 300 can determine the bubble content parameter in the current fluid pulse according to the received induced electric signal.

[0110] In some embodiments, the method for detecting the bubble content in the fluid sprayed by the tooth cleaner can use ultrasonic detection, which will be described below with reference to FIG. 9. Referring to FIG. 9, in some embodiments, the collection device 100 includes a liquid container 102, and the sensing device includes an ultrasonic transducer 203.

[0111] The liquid container 102 can be sleeved on the nozzle 22 to collect the fluid pulses sprayed by the nozzle 22 of the tooth cleaner. The ultrasonic transducer 203 can be arranged inside the liquid container 102. When the detection is performed, the tooth cleaner can be controlled to work normally, so that the nozzle 22 sprays fluid in the form of fluid pulses, and the liquid container 102 can collect the fluid pulses. Then the ultrasonic transducer 203 can emit ultrasonic signals toward the fluid. When the ultrasonic signals meet the bubbles in the water flow, reflection and scattering occur. Therefore, the ultrasonic transducer 203 can receive the reflected and scattered acoustic signals and convert the received acoustic signals into induced electric signals. The ultrasonic transducer 203 sends the induced electric signals to the controller 300. The controller 300 can determine the bubble content parameter in the current fluid pulse according to the received induced electric signals.

[0112] The bubble content detection of one fluid pulse of the tooth cleaner can be completed by the method processes of FIG. 8 and / or FIG. 9. In some embodiments, the above processes can be performed only for one fluid pulse, so that the bubble content parameter of a single fluid pulse is detected. The above processes can also be repeatedly performed continuously or at intervals for multiple fluid pulses, so that the bubble content parameters of multiple fluid pulses are detected, and then the final bubble content parameter is obtained by averaging, weighted averaging, summation, etc.

[0113] In some embodiments, the quantification dimensions of the detection results of the tooth cleaner include not only the aforementioned bubble content parameter, but also other dimensions, such as fluid width, nozzle bending angle, fluid pressure, pulse frequency, etc. In the following embodiments of the present disclosure, the detection system shown in FIG. 10 will be taken as an example to describe the working principle and the calculation process of the detection results.

[0114] Referring to FIG. 10, in some embodiments, the detection system of the present disclosure comprises, in addition to the aforementioned sampling device 100, sensing device 200 and controller 300, a camera 400, clamping device 500, measuring device 600, frequency detection device 700 and water pressure detection device 800.

[0115] The clamping device 500 refers to the structure in the detection system for fixing and clamping the dental cleaner and the dental model. In some embodiments, the clamping device 500 can comprise a first clamping part and a second clamping part, the first clamping part being used to clamp the dental cleaner, and the second clamping part being used to clamp the dental model. For example, in one example, the first clamping part and the second clamping part can be a mechanical arm, a mechanical hand or other clamping mechanism that can be driven and controlled.

[0116] In some embodiments of the present disclosure, the detection results of the dental cleaner are divided into the following four dimensions: fluid fit, use comfort, oral cleaning ability and oral care ability. The calculation process of the four dimensions will be described below with reference to the detection system of the embodiment of FIG. 10.

[0117] 1) Fluid fit

[0118] As can be seen from the dental cleaning scene shown in FIG. 4, during the dental cleaning process, the fluid width sprayed by the nozzle 22 will directly affect the cleaning efficiency and effect. For example, too fine fluid will cause the user to take a long time to clean the entire oral cavity, thereby affecting the cleaning efficiency and reducing the user experience. For another example, too wide fluid will cause the water flow impact force to decrease, thereby affecting the cleaning effect. Therefore, in the embodiment of the present disclosure, the fluid fit K1 can be used to reflect the adaptability of the fluid width sprayed by the dental cleaner to the user's tooth gap length.

[0119] In some embodiments, the fluid fit K1 is expressed as:

[0120] In formula (1), W represents the fluid width parameter of the fluid sprayed by the dental cleaner. D represents the outlet size parameter of the nozzle 22 of the dental cleaner. Y represents the tooth gap length. Z represents the periodontal pocket depth. It can be understood that, in the case of a given dental model size, Y and Z are both known quantities, so only the fluid width parameter W and the outlet size parameter D need to be determined.

[0121] In some embodiments, in combination with the example of FIG. 4, the detection system can control the dental cleaner to perform a simulation operation of the real dental cleaning process on the dental model. For example, in one example, the detection system can control the first clamping part to clamp the dental cleaner, and perform the dental cleaning operation on the dental model clamped by the second clamping part according to the preset operation program.

[0122] In the tooth cleaning process, the camera 400 of the detection system can capture a sequence of images containing the fluid ejected by the nozzle of the tooth cleaner. The camera 400 can be a high-speed camera, so that a sequence of images of each fluid pulse ejected by the nozzle can be captured.

[0123] In some embodiments, the detection system further comprises an image processing module, which can be built-in in the camera 400 or the controller 300, and the present disclosure does not limit this. The image processing module can perform image detection according to the sequence of images captured by the camera 400, and determine the fluid width parameter W of the fluid at the first distance from the nozzle and the outlet size parameter D of the nozzle.

[0124] It can be understood that in a standard tooth cleaning process, the nozzle is generally required to maintain a certain distance from the tooth surface or the gum of the user, which is the first distance according to the present disclosure. In some embodiments, the first distance can be 2-3 mm.

[0125] In the embodiments of the present disclosure, the image detection technology can be used to detect the fluid width of the fluid ejected by the nozzle at the first distance, so as to obtain the fluid width parameter. For example, FIG. 11 shows the image of the fluid ejected by two different tooth cleaners. In the embodiments of the present disclosure, the fluid width parameter W of the tooth cleaner can be detected through the above process. The outlet size parameter of the nozzle refers to the fluid width parameter at the outlet position of the nozzle 22. Also referring to FIG. 11, the outlet size parameter D of the nozzle of different tooth cleaners can be detected through the image detection technology.

[0126] After the fluid width parameter W and the outlet size parameter D of the tooth cleaner are determined through the detection system, they can be substituted into the formula (1) above to calculate the corresponding fluid fitting degree K1 of the tooth cleaner.

[0127] 2) Comfort level

[0128] As described above, the bending angle between the nozzle 22 and the flow channel 21 of different tooth cleaners is different, and the length of the nozzle 22 is also different. Whether the design of the tooth cleaner meets the ergonomics will directly affect the comfort level of the user using the tooth cleaner. Therefore, in the embodiments of the present disclosure, the comfort level K2 can be used to reflect the use effect of the tooth cleaner.

[0129] In some embodiments, the comfort level K2 is expressed as:

[0130] In formula (2), A represents the bending angle between the nozzle and the flow channel, B represents the length of the nozzle, and R represents the arc of the dental arch of the dental model. It can be understood that the arc of the dental arch refers to the arc of the parabola formed by the dentition. In the given dental model, the arc of the dental arch R is a known quantity, so only the bending angle A and the length B of the nozzle need to be determined.

[0131] Referring to FIG. 10, the detection system comprises a measuring device 600 for detecting the bending angle between the nozzle 22 and the flow channel 21, and the length of the nozzle 22.

[0132] For example, in some embodiments, the measuring device 600 can be an image detection device, which determines the bending angle A and the length B of the nozzle based on image detection technology by image acquisition of the nozzle of the dental cleaner. The image detection device can use image detection software such as Image J, and the present disclosure will not be repeated here.

[0133] For example, in some other embodiments, the measuring device 600 can comprise an electronic protractor and an electronic range finder, and the detection system can control the clamping device 500 to place the dental cleaner on the measuring device 600, and then the electronic protractor measures the bending angle A of the nozzle and the electronic range finder measures the length B of the nozzle to obtain the corresponding measurement values.

[0134] Of course, those skilled in the art can understand that the specific implementation of the measuring device 600 is not limited to the above examples, and other ways can also be used, and the present disclosure will not be repeated here.

[0135] After the bending angle A and the length B of the nozzle are determined by the detection system, they can be substituted into the above formula (2) to calculate the corresponding use comfort K2 of the dental cleaner.

[0136] 3) Oral cleaning ability

[0137] As known from the foregoing, the pulse frequency and fluid pressure of the jet flow of the dental cleaner will directly affect the cleaning effect, and therefore, in the embodiments of the present disclosure, the pulse frequency and fluid pressure can be used to reflect the oral cleaning ability of the dental cleaner.

[0138] In some embodiments, the oral cleaning ability parameter K3 is represented as:

[0139] In formula (3), P represents the maximum pressure of the fluid jet of the dental cleaner. F represents the pulse frequency of the fluid jet of the dental cleaner. L represents the first distance, i.e. the distance from the nozzle outlet of the dental cleaner to the tooth surface or gum surface. It can be understood that in a standard dental cleaning process, the first distance L is generally a known quantity, so only the maximum pressure P and the pulse frequency F need to be determined.

[0140] In some embodiments, as shown in FIG. 10, the detection system comprises a frequency detection device 700 and a water pressure detection device 800. The frequency detection device 700 is used to detect the pulse frequency of the fluid ejected by the oral irrigator, for example, the pulse frequency is (n times / minute), indicating that the oral irrigator ejects fluid n times per minute. The water pressure detection device 800 is used to detect the maximum pressure of the fluid ejected by the oral irrigator.

[0141] In some embodiments, the frequency detection device 700 can comprise a stroboscope or an electronic pulse signal collector. For example, taking the stroboscope as an example, the oral irrigator can be controlled to normally work periodically to eject fluid, and then the stroboscope can be used to collect and read the ejection frequency of the fluid to obtain the pulse frequency F. For example, taking the electronic pulse signal collector as an example, the electronic pulse signal collector can be implanted in the oral irrigator, and the pulse frequency F can be determined by directly collecting the electronic signal used to control the emission pulse. Those skilled in the art can understand this, and the disclosure will not be repeated here.

[0142] In some embodiments, the water pressure detection device 800 can comprise a water pressure gauge or a pressure scale. For example, taking the water pressure gauge as an example, the nozzle of the oral irrigator can be connected to the interface of the water pressure gauge, and then the oral irrigator can be controlled to normally eject fluid, and the maximum pressure P of the ejected fluid can be determined by reading the reading of the water pressure gauge. For example, taking the pressure scale as an example, the nozzle outlet of the oral irrigator can be controlled to keep a first distance L from the scale surface of the pressure scale, and then the oral irrigator can be started to make the ejected fluid hit the scale surface, and the maximum pressure P of the ejected fluid can be determined by reading the reading of the pressure scale. Those skilled in the art can understand this, and the disclosure will not be repeated here.

[0143] After the maximum pressure P and the pulse frequency F are determined by the detection system, they can be substituted into the formula (3) above to calculate the corresponding oral cleaning ability parameter K3 of the oral irrigator.

[0144] 4) Oral care ability

[0145] As described above, the content of bubbles in the fluid ejected by the oral irrigator will directly affect the inhibition and cleaning ability of the subgingival anaerobic bacteria, thereby affecting the oral care effect. Therefore, in the embodiments of the disclosure, the oral care ability parameter K4 can be used to reflect the disease prevention and care ability of the oral irrigator to the user's oral cavity.

[0146] In some embodiments, the oral care ability parameter K4 is represented as:

[0147] In formula (4), O represents a bubble content parameter of the fluid ejected by the dental cleaner, and P represents a maximum pressure of the fluid ejected by the dental cleaner. In the embodiments of the present disclosure, the detection processes of the bubble content parameter O and the maximum pressure P are described in the foregoing embodiments, and those skilled in the art can refer to the foregoing embodiments, and the present disclosure will not be described here again.

[0148] It is worth noting that in the above embodiments, the oral care ability parameter K4 is represented by the ratio of the bubble content parameter O to the maximum pressure P. In other embodiments, the oral care ability parameter K4 can be equal to the bubble content parameter O.

[0149] In the embodiments of the present disclosure, after obtaining the fluid fitting degree K1, the use comfort degree K2, the oral cleaning ability parameter K3, and the oral care ability parameter K4, these parameters can be fused to obtain the detection result of the dental cleaner.

[0150] In some embodiments, the corresponding detection result can be obtained by arbitrarily fusing the above two parameters, or the corresponding detection result can be obtained by comprehensively considering all four parameters. For example, in some embodiments, the detection result M of the dental cleaner is represented as: M = αK1 + βK2 + ωK3 + θK4 (5)

[0151] In formula (5), α represents a first coefficient corresponding to the fluid fitting degree K1, β represents a second coefficient corresponding to the use comfort degree K2, ω represents a third coefficient corresponding to the oral cleaning ability parameter K3, and θ represents a fourth coefficient corresponding to the oral care ability parameter K4. In the embodiments of the present disclosure, the specific values of α, β, ω, and θ are not limited, and those skilled in the art can select the corresponding coefficient values according to the specific application scenarios, and the present disclosure will not be described here again.

[0152] As described above, in the embodiments of the present disclosure, the bubble content of the fluid ejected by the dental cleaner is detected, and the detection result of the dental cleaner is determined based on the bubble content parameter, which can more accurately and objectively quantitatively express the inhibition and cleaning ability of the dental cleaner for subgingival anaerobic bacteria, and further reflect the cleaning ability and disease prevention ability of the dental cleaner for the user's oral cavity, thereby providing objective and efficient guidance for manufacturers and users.

[0153] Moreover, by comprehensively considering multiple dimensions to obtain the detection result of the dental cleaner, the dental cleaner can be more comprehensively and fully evaluated, which is more instructive. The detection result can be used as an industry general standard to provide intuitive and efficient guidance for users to select and purchase products, and can also provide objective guidance for manufacturers in the research and development stage to improve the brush head structure in a targeted manner, effectively pre-position the risk, and form an effective closed loop for product iteration.

[0154] In addition, in the embodiments of the present disclosure, the oral irrigator detection process is standardized, and long-term observation tests on a large number of subjects are not required, thereby improving the detection efficiency and reducing the detection cost.

[0155] Based on the foregoing detection system, in some embodiments of the present disclosure, a detection method for oral irrigator detection is provided, which will be described below with reference to FIG. 12.

[0156] As shown in FIG. 12, in some embodiments, the detection method of the present disclosure example includes the following steps.

[0157] S1210, during the operation of the oral irrigator, the fluid sprayed by the oral irrigator is collected, and the inductive electric signal in the process of the oral irrigator spraying the fluid is detected by the inductive device.

[0158] S1220, the bubble content parameter in the fluid is determined according to the inductive electric signal, and the detection result of the oral irrigator is determined according to the bubble content parameter.

[0159] In combination with the detection system shown in FIG. 7 or FIG. 10, during the oral cleaning process, the sampling device 100 can collect the fluid sprayed through the nozzle of the oral irrigator, and the inductive device 200 can perform corresponding inductive operation on the fluid sampled by the sampling device 100, to detect the bubble content in the fluid and obtain the corresponding inductive electric signal under different bubble contents. For example, in the examples of FIG. 8 and FIG. 9 described above, the inductive electric signal can be obtained by laser detection or ultrasonic detection, which will not be described again in the present disclosure.

[0160] In the embodiments of the present disclosure, the controller 300 can receive the inductive electric signal of the inductive device, and determine the bubble content parameter in the fluid sprayed by the oral irrigator by processing the inductive electric signal.

[0161] As can be understood from the foregoing, the bubble content parameter in the fluid reflects the inhibition and cleaning ability of the oral irrigator to the subgingival anaerobic bacteria, and further reflects the cleaning ability and disease prevention ability of the oral irrigator to the user's oral cavity. Therefore, in some embodiments of the present disclosure, the controller 300 can obtain the detection result for expressing the cleaning and disease prevention ability of the oral irrigator according to the bubble content parameter of the fluid sprayed by the oral irrigator.

[0162] As can be understood from the foregoing, in the embodiments of the present disclosure, by detecting the bubble content of the fluid sprayed by the oral irrigator and determining the detection result of the oral irrigator based on the bubble content parameter, the inhibition and cleaning ability of the oral irrigator to the subgingival anaerobic bacteria can be objectively quantified and expressed, and further the cleaning ability and disease prevention ability of the oral irrigator to the user's oral cavity can be reflected, thereby providing objective and efficient guidance for manufacturers and users. In addition, in the embodiments of the present disclosure, the oral irrigator detection process is standardized, and long-term observation tests on a large number of subjects are not required, thereby improving the detection efficiency and reducing the detection cost.

[0163] As shown in FIG. 13, in some embodiments, the detection method of the present disclosure example further comprises:

[0164] S1310, acquiring an image sequence of the process of the oral irrigator ejecting fluid.

[0165] S1320, performing image detection on the image sequence to determine a fluid width parameter of the fluid at a first distance from the nozzle of the oral irrigator, and an outlet size parameter of the nozzle.

[0166] S1330, determining the fluid fit degree of the oral irrigator according to the fluid width parameter and the outlet size parameter.

[0167] As can be known from the foregoing, in the process of tooth cleaning, the camera 400 of the detection system can acquire an image sequence containing the fluid ejected by the nozzle of the oral irrigator. The camera 400 can be a high-speed camera, so that the image sequence of each fluid pulse ejected by the nozzle can be acquired. Then, according to the image sequence acquired by the camera 400, image detection is performed to determine the fluid width parameter W of the fluid at the first distance from the nozzle, and the outlet size parameter D of the nozzle.

[0168] It can be understood that in a standard tooth cleaning process, the nozzle is generally required to maintain a certain distance from the tooth surface or the gum of the user, which is the first distance according to the present disclosure. In some embodiments, the first distance can be 2mm to 3mm. In the embodiments of the present disclosure, the image detection technology can be used to detect the fluid width of the fluid ejected by the nozzle at the first distance, so as to obtain the fluid width parameter W. Similarly, the image detection technology can also be used to detect the outlet size parameter D of the nozzle of different oral irrigators.

[0169] After the fluid width parameter W and the outlet size parameter D of the oral irrigator are determined by the detection system, they can be substituted into the formula (1) above to calculate the corresponding fluid fit degree K1 of the oral irrigator.

[0170] As shown in FIG. 14, in some embodiments, the detection method of the present disclosure example further comprises:

[0171] S1410, acquiring the bending angle between the nozzle and the flow channel connected to the nozzle, and the length of the nozzle.

[0172] S1420, determining the use comfort degree of the oral irrigator according to the bending angle and the length of the nozzle.

[0173] Referring to FIG. 10, the detection system comprises a measuring device 600 for detecting the bending angle between the nozzle 22 and the flow channel 21, and the length of the nozzle 22.

[0174] For example, in some embodiments, the measuring device 600 can be an image detection device, which determines the bending angle A and the length B of the nozzle of the oral irrigator based on image detection technology by image acquisition of the nozzle of the oral irrigator. The image detection device can use image detection software such as Image J, and the present disclosure will not be repeated here.

[0175] For example, in some other embodiments, the measuring device 600 can include an electronic protractor and an electronic range finder, and the detection system can control the clamping device 500 to place the oral irrigator on the measuring device 600, and then the electronic protractor measures the bending angle A of the nozzle, and the electronic range finder measures the length B of the nozzle to obtain the corresponding measurement values.

[0176] After the bending angle A and the length B of the nozzle are determined by the detection system, they can be substituted into the above formula (2) to calculate the corresponding use comfort K2 of the oral irrigator.

[0177] As shown in FIG. 15, in some embodiments, the detection method of the present disclosure further includes:

[0178] S1510, detecting the pulse frequency of the fluid ejected by the oral irrigator, and the maximum pressure of the ejected fluid.

[0179] S1520, determining the oral cleaning ability parameter of the oral irrigator according to the pulse frequency and the maximum pressure.

[0180] In some embodiments, in combination with FIG. 10, the detection system includes a frequency detection device 700 and a water pressure detection device 800. The frequency detection device 700 is used to detect the pulse frequency of the fluid ejected by the oral irrigator, for example, the pulse frequency is (n times / minute), which represents that the oral irrigator ejects fluid n times per minute. The water pressure detection device 800 is used to detect the maximum pressure of the fluid ejected by the oral irrigator.

[0181] In some embodiments, the frequency detection device 700 can include a stroboscope or an electronic pulse signal collector. For example, taking the stroboscope as an example, the normal working period of the oral irrigator can be controlled to periodically eject fluid, and then the stroboscope is used to collect and read the ejection frequency of the fluid to obtain the pulse frequency F. For example, taking the electronic pulse signal collector as an example, the electronic pulse signal collector can be implanted in the oral irrigator, and the pulse frequency F is determined by directly collecting the electronic signal used to control the emission pulse. Those skilled in the art can understand this, and the present disclosure will not be repeated here.

[0182] In some embodiments, the water pressure detection device 800 can include a water pressure gauge or a pressure scale. For example, taking the water pressure gauge as an example, the nozzle of the oral irrigator can be connected to the interface of the water pressure gauge, and then the normal fluid injection of the oral irrigator is controlled, and the maximum pressure P of the injected fluid can be determined by reading the reading of the water pressure gauge. For example, taking the pressure scale as an example, the nozzle outlet of the oral irrigator can be controlled to maintain a first distance L from the scale surface of the pressure scale, and then the oral irrigator is started so that the injected fluid hits the scale surface, and the maximum pressure P of the injected fluid can be determined by reading the reading of the pressure scale. Those skilled in the art can understand this, and the present disclosure will not be repeated here.

[0183] After the maximum pressure P and the pulse frequency F are determined by the detection system, they can be substituted into the above formula (3) to calculate the oral cleaning ability parameter K3 corresponding to the oral irrigator.

[0184] In some embodiments, the oral care ability parameter K4 can be calculated by the aforementioned formula (4).

[0185] In the embodiments of the present disclosure, after the aforementioned fluid fitting degree K1, the use comfort degree K2, the oral cleaning ability parameter K3, and the oral care ability parameter K4 are obtained, these parameters can be fused and processed according to the aforementioned formula (5), so as to obtain the detection result of the oral irrigator, and the present disclosure will not be repeated here.

[0186] As can be seen from the above, in the embodiments of the present disclosure, the inhibition and cleaning ability of the oral irrigator for subgingival anaerobic bacteria can be objectively quantified by detecting the bubble content of the fluid injected by the oral irrigator and determining the detection result of the oral irrigator based on the bubble content parameter, so as to reflect the cleaning ability and disease prevention ability of the oral irrigator for the user's oral cavity, and provide objective and efficient guidance for manufacturers and users.

[0187] Moreover, the detection result of the oral irrigator can be obtained by comprehensively considering multiple dimensions, so that the oral irrigator can be more comprehensively and fully evaluated, and the detection result can be used as an industry standard to provide intuitive and efficient guidance for users to select and purchase products, and can also provide objective guidance for manufacturers in the research and development stage, so as to improve the brush head structure in a targeted manner and effectively pre-position risks to form an effective closed loop for product iteration.

[0188] In addition, in the embodiments of the present disclosure, the oral irrigator detection process is standardized, and long-term observation tests on a large number of subjects are not required, so as to improve the detection efficiency and reduce the detection cost.

[0189] In the present disclosure, the performance of the oral irrigator is refined into four different aspects, and a more accurate detection result of the oral irrigator is obtained by weighting and the like, so as to establish an objective test standard close to the real use condition.

[0190] Obviously, the above embodiments are merely example for clearly illustrating but not limitation to the embodiments. Based on the above description, other different forms of changes or variations can be made by those skilled in the art. Here, all the embodiments need not and can not be enumerated. The obvious changes or variations derived from the above description are still within the protection scope of the disclosure.

Claims

1. A detection system of a dental irrigator, comprising: a sampling device arranged at a nozzle of the dental irrigator, configured to collect fluid emitted by the dental irrigator through the nozzle; a sensing device arranged at the sampling device, configured to detect a sensing electric signal during the dental irrigator emitting the fluid, the sensing electric signal representing a signal of a bubble content in the fluid; and a controller configured to receive the sensing electric signal of the sensing device, and to process the sensing electric signal to obtain a bubble content parameter of the fluid, to obtain an oral care ability parameter based on the bubble content parameter, and to determine a detection result of the dental irrigator according to the oral care ability parameter. 2.The detection system of claim 1, wherein: the sampling device comprises a liquid flow cell, the liquid flow cell is sleeved on the nozzle, and a liquid flow direction of the liquid flow cell is the same as a fluid direction of the fluid emitted by the nozzle; the sensing device comprises a laser emitting end and a light receiving end, the laser emitting end and the light receiving end are arranged on two sides of the liquid flow cell, the laser emitting end is configured to emit laser towards the liquid flow cell, and the light receiving end is configured to receive light signals passing through the fluid and to generate the sensing electric signal according to the light signals. 3.The detection system of claim 1, wherein: the sampling device comprises a liquid container, the liquid container is arranged on the nozzle, and the liquid container is configured to collect the fluid emitted by the nozzle; the sensing device comprises an ultrasonic transducer, the ultrasonic transducer is arranged in the liquid container, the ultrasonic transducer is configured to emit ultrasonic waves to the liquid container and to receive sound wave signals reflected and / or scattered by the fluid, and the sensing electric signal is generated according to the received sound wave signals. 4.The detection system of any one of claims 1 to 3, further comprising: a camera configured to collect a sequence of images during the dental irrigator emitting the fluid through the nozzle; an image processing module arranged at the camera or at the controller, the image processing module is configured to perform image detection on the sequence of images to determine a fluid width parameter of the fluid at a first distance from the nozzle and an outlet size parameter of the nozzle; and the controller is configured to determine a fluid fit degree of the dental irrigator according to the fluid width parameter and the outlet size parameter, and to determine the detection result of the dental irrigator according to the fluid fit degree and the oral care ability parameter. wherein K1 represents the fluid fit degree, W represents the fluid width parameter, D represents the outlet size parameter, Y represents a gingival crevice length, and Z represents a periodontal pocket depth.

5. The detection system of claim 4, wherein, The fluid width parameter, the outlet size parameter, the fluid fit of the dental irrigator satisfy the following equation: the detection system further comprises a measurement device configured to detect a bending angle between the nozzle and a flow channel connected to the nozzle and a length of the nozzle; and 6. The detection system of claim 4, wherein, the controller is configured to determine a use comfort degree of the dental irrigator according to the bending angle and the length of the nozzle, and to determine the detection result of the dental irrigator according to the fluid fit degree, the use comfort degree, and the oral care ability parameter. ​ 7. The detection system of claim 6, wherein, The bending angle, the length of the nozzle, and the use comfort degree satisfy the following formula: K2 represents the use comfort, A represents the bending angle, B represents the length of the nozzle, and R represents the dental arch curvature of the dental model.

8. The detection system of claim 6, wherein, Further comprising a frequency detection device for detecting a pulse frequency of the fluid ejected by the dental cleaner, and a water pressure detection device for detecting a maximum pressure of the fluid ejected by the dental cleaner; The controller is configured to determine an oral cleaning capability parameter of the dental cleaner according to the pulse frequency and the maximum pressure, and determine the detection result of the dental cleaner according to the fluid fit, the use comfort, the oral cleaning capability parameter, and the oral care capability parameter.

9. The detection system of claim 8, wherein, The pulse frequency, the maximum pressure, and the oral cleaning ability parameter satisfy the following equation: K3 represents the oral cleaning capability parameter, P represents the maximum pressure, F represents the pulse frequency, and L represents a distance from a nozzle outlet of the dental cleaner to a tooth surface or a gum surface.

10. The detection system of claim 8, wherein, The frequency detection device comprises a stroboscope or an electronic pulse signal collector, and the water pressure detection device comprises a water pressure gauge or a pressure scale.

11. The detection system of claim 8, wherein, The controller is configured to perform a weighted fusion process on the fluid fit, the use comfort, the oral cleaning capability parameter, and the oral care capability parameter according to a first coefficient corresponding to the fluid fit, a second coefficient corresponding to the use comfort, a third coefficient corresponding to the oral cleaning capability parameter, and a fourth coefficient corresponding to the oral care capability parameter, to obtain the detection result.

12. The detection system of claim 11, wherein, The first coefficient, the fluid fit, the second coefficient, the use comfort, the third coefficient, the oral cleaning capability parameter, the oral care capability parameter, and the fourth coefficient satisfy the following formula: M = αK1 + βK2 + ωK3 + θK4 M represents the detection result, α represents the first coefficient corresponding to the fluid fit K1, β represents the second coefficient corresponding to the use comfort K2, ω represents the third coefficient corresponding to the oral cleaning capability parameter K3, and θ represents the fourth coefficient corresponding to the oral care capability parameter K4.

13. The detection system of claim 11, wherein, The value of the oral care capability parameter is equal to the value of the bubble content parameter.

14. The detection system of claim 1, wherein, Further comprising a clamping device, the clamping device comprising a first clamping portion for clamping the dental cleaner and a second clamping portion for clamping a dental model.

15. A dental cleaner detection method, comprising: During operation of the dental cleaner, collecting fluid ejected by the dental cleaner, and detecting an induction electric signal in the process of the dental cleaner ejecting the fluid through an induction device, the induction electric signal representing a signal of bubble content in the fluid; Determining a bubble content parameter in the fluid according to the induction electric signal, obtaining an oral care capability parameter based on the bubble content parameter, and determining a detection result of the dental cleaner according to the oral care capability parameter.

16. The method of claim 10, wherein, Further comprising: Collecting an image sequence in the process of the dental cleaner ejecting the fluid; image detection is performed on the image sequence to determine a fluid width parameter of the fluid at a first distance from a nozzle of the dental cleaner and an outlet size parameter of the nozzle; a fluid fit degree of the dental cleaner is determined according to the fluid width parameter and the outlet size parameter; the determination result of the dental cleaner according to the oral care ability parameter comprises: the determination result of the dental cleaner according to the fluid fit degree and the oral care ability parameter.

17. The method of claim 11, wherein, Further comprising: an angle of bending between the nozzle and a flow channel connected to the nozzle is collected, and a length of the nozzle is collected; a use comfort degree of the dental cleaner is determined according to the angle of bending and the length of the nozzle; the determination result of the dental cleaner according to the oral care ability parameter comprises: the determination result of the dental cleaner according to the fluid fit degree, the use comfort degree and the oral care ability parameter.

18. The method of claim 12, wherein, Further comprising: a pulse frequency at which the dental cleaner sprays the fluid and a maximum pressure at which the dental cleaner sprays the fluid are detected; an oral cleaning ability parameter of the dental cleaner is determined according to the pulse frequency and the maximum pressure; the determination result of the dental cleaner according to the oral care ability parameter comprises: the determination result of the dental cleaner according to the fluid fit degree, the use comfort degree, the oral cleaning ability parameter and the oral care ability parameter.

19. The method of claim 13, wherein, the determination result of the dental cleaner according to the fluid fit degree, the use comfort degree, the oral cleaning ability parameter and the oral care ability parameter comprises: a weighted fusion process is performed on the fluid fit degree, the use comfort degree, the oral cleaning ability parameter and the oral care ability parameter according to a first coefficient corresponding to the fluid fit degree, a second coefficient corresponding to the use comfort degree, a third coefficient corresponding to the oral cleaning ability parameter and a fourth coefficient corresponding to the oral care ability parameter, to obtain the determination result.

20. The method of claim 19, wherein, a value of the oral care ability parameter is equal to a value of the bubble content parameter.

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