CN215271106U - Multifunctional flushing type toothbrush - Google Patents
Multifunctional flushing type toothbrush Download PDFInfo
- Publication number
- CN215271106U CN215271106U CN202121584512.9U CN202121584512U CN215271106U CN 215271106 U CN215271106 U CN 215271106U CN 202121584512 U CN202121584512 U CN 202121584512U CN 215271106 U CN215271106 U CN 215271106U
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- China
- Prior art keywords
- brush
- water storage
- toothbrush
- guide pipe
- storage bag
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- 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.)
- Expired - Fee Related
Links
- 238000011010 flushing procedure Methods 0.000 title abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 52
- 238000003860 storage Methods 0.000 claims abstract description 33
- 230000007246 mechanism Effects 0.000 claims abstract description 18
- 239000007788 liquid Substances 0.000 claims description 17
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 210000000214 mouth Anatomy 0.000 abstract description 19
- 238000005406 washing Methods 0.000 abstract description 5
- 238000005086 pumping Methods 0.000 abstract description 2
- 238000004140 cleaning Methods 0.000 description 8
- 241000894006 Bacteria Species 0.000 description 6
- 235000009161 Espostoa lanata Nutrition 0.000 description 4
- 240000001624 Espostoa lanata Species 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 210000002200 mouth mucosa Anatomy 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 239000000741 silica gel Substances 0.000 description 3
- 229910002027 silica gel Inorganic materials 0.000 description 3
- 206010006326 Breath odour Diseases 0.000 description 2
- 208000032139 Halitosis Diseases 0.000 description 2
- 206010024971 Lower respiratory tract infections Diseases 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000002324 mouth wash Substances 0.000 description 2
- 229940051866 mouthwash Drugs 0.000 description 2
- 230000000474 nursing effect Effects 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- 210000003437 trachea Anatomy 0.000 description 2
- 208000002064 Dental Plaque Diseases 0.000 description 1
- 206010036790 Productive cough Diseases 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000036528 appetite Effects 0.000 description 1
- 235000019789 appetite Nutrition 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 244000052616 bacterial pathogen Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003115 biocidal effect Effects 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 239000010794 food waste Substances 0.000 description 1
- 210000003128 head Anatomy 0.000 description 1
- 238000005399 mechanical ventilation Methods 0.000 description 1
- 210000004400 mucous membrane Anatomy 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 210000003300 oropharynx Anatomy 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 210000002345 respiratory system Anatomy 0.000 description 1
- 230000028327 secretion Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 210000003802 sputum Anatomy 0.000 description 1
- 208000024794 sputum Diseases 0.000 description 1
- 230000009967 tasteless effect Effects 0.000 description 1
- 210000003813 thumb Anatomy 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Landscapes
- Brushes (AREA)
Abstract
本实用新型公开了一种多功能冲洗式牙刷，涉及牙刷技术领域，包括刷柄、刷杆和刷头，且刷柄与刷杆之间保持可拆卸连接，刷头与刷杆之间一体成型，刷柄的一侧设有储水机构，刷柄的尾端设有连接机构，刷头一侧开设有卡口，卡口内侧嵌入设置有刷毛板，且刷毛板与卡口之间保持卡合可拆卸式连接，能够有效集冲、洗、抽于一体，不需要借助注射器来冲洗，不需要备口护包，缩短了操作时间，操作完毕自然冲洗即可，减轻了护士的工作量，而且能够有效对患者口腔进行清洁，改善患者口腔环境。
The utility model discloses a multifunctional rinsing type toothbrush, which relates to the technical field of toothbrushes. One side of the brush handle is provided with a water storage mechanism, the tail end of the brush handle is provided with a connecting mechanism, one side of the brush head is provided with a bayonet, and the inner side of the bayonet is embedded with a bristle plate, and the card is kept between the bristle plate and the bayonet. Combined with detachable connection, it can effectively integrate flushing, washing and pumping. It does not need to use a syringe to flush, no need for a mouth guard, shortens the operation time, and can flush naturally after the operation, reducing the workload of nurses. Moreover, it can effectively clean the patient's oral cavity and improve the oral environment of the patient.
Description
Technical Field
The utility model relates to the technical field of toothbrushes, in particular to a multifunctional washing type toothbrush.
Background
The severe patients are seriously ill, fasting or appetite is reduced, antibiotic treatment is more, and the severe patients cannot take enough drinking water every day like normal people, particularly, the patients with mechanical ventilation have the oral cavity in an open state for a long time, the mucous membrane is dry, so that the self-cleaning function and the defense capability of the oral cavity are reduced, bacteria are massively propagated, bad conditions such as halitosis, oral cavity and lower respiratory tract infection are more likely to occur, and researches such as Zhangyuan suggest that colonizing bacteria at the oropharynx part of the patients are important pathogenic bacteria of the lower respiratory tract infection, and the same rate of the lower respiratory tract bacteria culture and the oral bacteria culture is up to 67%, so that the oral care is of great importance.
Traditional oral care uses the cotton ball to clean, it is limited to have clean scope, the cotton ball can't with patient's slit between teeth in close contact with or because of wiping the not enough unexpected clean effect of pressure, burnisher such as tweezers makes fragile oral mucosa easily receive the damage scheduling problem, clinical suction formula toothbrush that adopts carries out oral care more at present, through realizing the research, an experimental group will be connected the use of suction formula toothbrush and electronic suction machine and wipe the effect of doing oral care for severe patients with traditional cotton ball and do contrast research discovery, oral cavity bacterium can be clear away better to electronic suction formula toothbrush, the dirt remains, oral cavity peculiar smell, dental plaque, shorten oral care time. The other experimental group and the like adopt a mode of combining negative pressure suction and a suction type toothbrush to carry out oral care on patients with oral trachea cannula, and the results show that the experimental group is superior to a control group in oral cleaning, tooth cleaning, gum cleaning, tongue cleaning, halitosis prevention, oral mucosa integrity and oral mucosa damage degree, but has the defects that another nurse needs to use a syringe to assist washing, the time of the two nurses is occupied, and the use is inconvenient.
SUMMERY OF THE UTILITY MODEL
Therefore, in order to solve the above-mentioned not enough, the utility model provides a multi-functional washout toothbrush herein can effectively collect dash, wash, take out in an organic whole, need not wash with the help of the syringe, need not be equipped with the mouth and protect the package, has shortened operating time, and the operation finishes naturally wash can, has alleviateed nurse's work load, can effectively clean patient's oral cavity moreover, improves patient's oral cavity environment.
The utility model discloses a realize like this, construct a multi-functional washout toothbrush, including brush holder, brush-holder stud and brush head, and keep dismantling between brush holder and the brush-holder stud to be connected, integrated into one piece between brush head and the brush-holder stud, one side of brush holder is equipped with water storage mechanism, and the tail end of brush holder is equipped with coupling mechanism, and the bayonet socket has been seted up to brush head one side, and the inboard embedding of bayonet socket is provided with the brush hair board, and keeps the detachable connection of block between brush hair board and the bayonet socket.
Further, water storage mechanism comprises water storage bag, aqueduct, inner chamber, spacing card and pipette, and the water storage bag is installed in brush holder one side and runs through the brush holder, and the aqueduct embedding is installed in brush holder and brush pole surface, and the inner chamber sets up in the brush head, and the aqueduct both ends respectively with water storage bag and inner chamber intercommunication, spacing card is the symmetry and sets up between brush holder and brush pole, and the aqueduct runs through and sets up in spacing card, and the pipette intercommunication sets up in the afterbody of water storage bag, and all is equipped with the check valve in aqueduct and the pipette.
Furthermore, the connecting mechanism consists of a brush tail, a threaded port, an air guide pipe, a three-way pipe and a suction control hole, the threaded port is arranged in the brush tail and connected with the air guide pipe, the suction control hole is arranged on the side surface of the brush handle and penetrates through the brush handle, and the three-way pipe is respectively connected with the air guide pipe, the suction control hole and the inner cavity.
Furthermore, a plurality of bundles of bristles are arranged on the surface of the bristle plate, nozzles are arranged among the bundles of bristles and penetrate through the bristle plate and are communicated with the inner cavity.
Furthermore, an anti-skid layer is adhered to the surface of the water storage bag, and a transparent liquid level groove is formed in one side of the water storage bag.
Furthermore, the back of the brush head is stuck with sponge.
Compared with the prior art, the beneficial effects of the utility model embody:
the method has the advantages that: the multifunctional toothbrush integrates flushing, washing and pumping, a syringe is not needed for flushing, a mouth protecting bag is not needed, the operation time is shortened, the multifunctional toothbrush can be naturally flushed after the operation is finished, and the workload of nurses is reduced; the nursing operation of the oral cavity can be completed by one nurse, so that the labor is saved, and particularly for a patient with trachea cannula, the nurse can fix the cannula by the other hand while nursing the oral cavity, thereby preventing adverse events such as tube falling and the like; the soft brush hair can be closely contacted with teeth, so that food residues and bacteria are thoroughly removed, and the cleanliness is improved; the spouts distributed on the brush head can suck the gargle and oral secretion in time, thereby avoiding the aspiration.
The method has the advantages that: the brush hair is made of silica gel material, has the advantages of softness, small friction coefficient, difficult deformation, no toxicity, no odor, no water absorption, high air permeability, high-temperature disinfection and the like, avoids the defects of bacterial breeding and hair falling of the traditional toothbrush and cotton ball, and is safer and more sanitary. The sponge at the back of the oval brush head and the brush head can protect the fragile oral mucosa from being damaged in the operation process, the sponge at the back of the brush head can be used for cleaning the tongue fur after the operation is finished, the brush handle is made of transparent plastic materials, the color and the property of the gargle of a patient can be conveniently observed, if abnormal measures are taken in time for treatment, the oral environment of the patient is improved, and the safety and the comfort level are improved.
The method has the advantages that: the toothbrush is made of green and environment-friendly materials, an injector is not needed to be matched with the toothbrush for washing, consumables are reduced, and cost of a department is reduced, wherein the silica gel is high-temperature resistant (can be sterilized at the temperature of less than or equal to 260 ℃), can be repeatedly used after being sterilized, is not easy to deform, has long service life, and is worthy of popularization and use in the department.
Drawings
FIG. 1 is a schematic view of the multi-functional rinse-off toothbrush of the present invention;
figure 2 is a cross-sectional view of the present invention from figure 1;
in the figure: the toothbrush comprises a toothbrush handle 1, a toothbrush rod 2, a toothbrush head 3, a bayonet 31, a toothbrush bristle plate 32, a nozzle 321, toothbrush bristles 322, sponge 33, a water storage mechanism 4, a water storage bag 41, a water guide pipe 42, an inner cavity 43, a limiting clamp 44, an anti-slip layer 45, a pipette 46, a connecting mechanism 5, a toothbrush tail 51, a threaded port 52, an air guide pipe 53, a three-way pipe 54 and a suction control hole 55.
Detailed Description
The present invention will be described in detail below with reference to the attached drawings, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention; furthermore, the terms "first," "second," "third," "upper, lower, left, right," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Meanwhile, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "connected" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; the connection can be mechanical connection or electrical connection; may be directly connected or indirectly connected through an intermediate. To those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific cases, and unless otherwise defined, all technical and scientific terms used herein have the same meanings as commonly understood by one of ordinary skill in the art to which the present invention belongs.
The following combines specification drawing and concrete embodiment to do further detailed explanation the utility model discloses technical scheme, the multi-functional washout toothbrush that this application embodiment provided, including brush holder 1, brush-holder stud 2 and brush head 3, and keep dismantling between brush holder 1 and the brush-holder stud 2 and be connected, integrated into one piece between brush head 3 and the brush-holder stud 2, one side of brush holder 1 is equipped with water storage mechanism 4, the tail end of brush holder 1 is equipped with coupling mechanism 5, bayonet 31 has been seted up to 3 one side of brush head, the inboard embedding of bayonet 31 is provided with brush hair board 32, and keeps the detachable connection of block between brush hair board 32 and the bayonet 31.
Referring to fig. 2, the water storage mechanism 4 comprises a water storage bag 41, a water conduit 42, an inner cavity 43, a limiting clamp 44 and a liquid suction pipe 46, wherein the water storage bag 41 is installed on one side of the brush handle 1 and penetrates through the brush handle 1, the water conduit 42 is embedded in the surfaces of the brush handle 1 and the brush rod 2, the inner cavity 43 is arranged in the brush head 3, two ends of the water conduit 42 are respectively communicated with the water storage bag 41 and the inner cavity 43, the limiting clamps 44 are symmetrically arranged between the brush handle 1 and the brush rod 2, the water conduit 42 is arranged in the limiting clamp 44 in a penetrating manner, the liquid suction pipe 46 is arranged at the tail of the water storage bag 41 in a communicating manner, and one-way valves are arranged in the water conduit 42 and the liquid suction pipe 46.
As an example, it should be noted that the water storage mechanism 4 is used for temporarily storing the oral care liquid for being conveniently delivered into the oral cavity of a patient, the liquid suction tube 46 is firstly placed in the oral care liquid, by applying a gripping force to the water storage bag 41, since the opening directions of the check valves in the water guide tube 42 and the liquid suction tube 46 are consistent and are all right, the air in the water storage bag 41 is discharged from the nozzle 321 on the bristle plate 32 connected to the water guide tube 42 through the water guide tube 42, and negative pressure is formed in the water storage bag 41, so that the oral care liquid is sucked into the water storage bag 41 through the liquid suction tube 46, when oral care is performed, the liquid in the water storage bag can enter the water guide tube 42 (at this time, the liquid suction tube 46 is in a closed state) by applying the gripping force and flow into the inner cavity 43 of the brush head 3, and is ejected to the oral cavity through the nozzle 321 on the bristle plate 32 and the bundle of bristles 322, and the oral cleaning work can be performed repeatedly, and can prevent oral cavity sewage backward flow from causing the pollution, the position of spacing card 44 is exactly a set of thread bush and screwed pipe, is used for being connected between brush holder 1 and the brush-holder stud 2 on the one hand, and on the other hand spacing card 44 is the spacing three-way pipe 54 winding of water pipe 42 card holding.
In fig. 2, the connecting mechanism 5 comprises a brush tail 51, a threaded port 52, an air duct 53, a three-way pipe 54 and a suction control hole 55, the threaded port 52 is arranged in the brush tail 51 and connected with the air duct 53, the suction control hole 55 is arranged on the side surface of the brush handle 1 and penetrates through the brush handle 1, and the three-way pipe 54 is respectively connected with the air duct 53, the suction control hole 55 and the inner cavity 43.
As an example, it should be noted that the connecting mechanism 5 is used for connecting with a negative pressure device outside a hospital, connecting the brush tail 51 and the threaded port 52 with a negative pressure drainage tube, adjusting the negative pressure and controlling the pressure supply of the negative pressure device at 40.0kPa-53.3kPa, then controlling the suction control hole 55 by a thumb to form a negative pressure environment in the three-way tube 54, and sucking out the mouth wash after the patient is brushed by the nozzle 321 through the inner cavity 43 and the three-way tube 54 into the sputum collection bottle for subsequent treatment, and it should be noted that the brush handle 1, the brush rod 2, the water storage bag 41, the water conduit 42 and the three-way tube 54 are all made of transparent materials, so that the working personnel can conveniently master the use condition of the cleaning solution.
The surface of the bristle plate 32 is provided with a plurality of bristles 322, a nozzle 321 is arranged between the plurality of bristles 322, and the nozzle 321 penetrates through the bristle plate 32 and is communicated with the inner cavity 43.
Referring to fig. 1, an anti-slip layer 45 is adhered to the surface of the water storage bag 41.
As an example, it should be noted that the anti-slip layer 45 is convenient for medical staff to hold by hand, and the transparent liquid level groove 46 can facilitate observation of the color and property of the mouthwash in the water storage bag 41, so that if there is an abnormality and measures are taken in time, the oral environment of the patient is improved, and meanwhile, the safety and comfort level are improved.
In fig. 1, a sponge 33 is attached to the back surface of the brush head 3.
As an example, it should be noted that the sponge 33 on the back of the brush head 3 can also be used to clean the tongue coating after the operation is finished.
In conclusion; multifunctional flushing type toothbrush can effectively collect dashes, washes, takes out in an organic whole, need not wash with the help of the syringe, need not be equipped with the mouth and protect the package, has shortened operating time, the operation finish naturally wash can, alleviateed nurse's work load, can effectively clean patient's oral cavity moreover, improve patient's oral cavity environment.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein, and it is to be understood that various changes and modifications may be made by one of ordinary skill in the art without departing from the spirit and scope of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (6)
1. The utility model provides a multi-functional washout toothbrush, includes brush holder (1), brush-holder stud (2) and brush head (3), and keeps dismantling between brush holder (1) and brush-holder stud (2) and be connected, integrated into one piece, its characterized in that between brush head (3) and brush-holder stud (2): one side of brush holder (1) is equipped with water storage mechanism (4), the tail end of brush holder (1) is equipped with coupling mechanism (5), bayonet socket (31) have been seted up to brush head (3) one side, bayonet socket (31) inboard embedding is provided with brush hair board (32), and keeps the detachable connection of block between brush hair board (32) and bayonet socket (31).
2. A multi-functional rinse-off toothbrush as defined in claim 1, wherein: the water storage mechanism (4) is composed of a water storage bag (41), a water guide pipe (42), an inner cavity (43), a limiting clamp (44) and a liquid suction pipe (46), the water storage bag (41) is installed on one side of the brush handle (1) and penetrates through the brush handle (1), the water guide pipe (42) is installed on the surfaces of the brush handle (1) and the brush rod (2) in an embedded mode, the inner cavity (43) is arranged in the brush head (3), the two ends of the water guide pipe (42) are communicated with the water storage bag (41) and the inner cavity (43) respectively, the limiting clamp (44) is symmetrically arranged between the brush handle (1) and the brush rod (2), the water guide pipe (42) penetrates through the limiting clamp (44), the liquid suction pipe (46) is communicated with the tail portion of the water storage bag (41), and one-way valves are arranged in the water guide pipe (42) and the liquid suction pipe (46).
3. A multi-functional rinse-off toothbrush as defined in claim 1, wherein: the connecting mechanism (5) is composed of a brush tail (51), a threaded port (52), an air guide pipe (53), a three-way pipe (54) and a suction control hole (55), the threaded port (52) is formed in the brush tail (51) and connected with the air guide pipe (53), the suction control hole (55) is formed in the side face of the brush handle (1) and penetrates through the brush handle (1), and the three-way pipe (54) is connected with the air guide pipe (53), the suction control hole (55) and the inner cavity (43) respectively.
4. A multi-functional rinse-off toothbrush as defined in claim 1, wherein: the surface of the bristle plate (32) is provided with a plurality of bristle bundles (322), a nozzle (321) is arranged between the bristle bundles (322), and the nozzle (321) penetrates through the bristle plate (32) and is communicated with the inner cavity (43).
5. A multi-function rinse-off toothbrush as defined in claim 2, wherein: an anti-skid layer (45) is adhered to the surface of the water storage bag (41).
6. A multi-functional rinse-off toothbrush as defined in claim 1, wherein: the back of the brush head (3) is stuck with a sponge (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121584512.9U CN215271106U (en) | 2021-07-13 | 2021-07-13 | Multifunctional flushing type toothbrush |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121584512.9U CN215271106U (en) | 2021-07-13 | 2021-07-13 | Multifunctional flushing type toothbrush |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215271106U true CN215271106U (en) | 2021-12-24 |
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ID=79522045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121584512.9U Expired - Fee Related CN215271106U (en) | 2021-07-13 | 2021-07-13 | Multifunctional flushing type toothbrush |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215271106U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114831761A (en) * | 2022-04-21 | 2022-08-02 | 广东卡沃罗氢科技有限公司 | Daily hydrogen-rich water electric toothbrush that uses of life |
-
2021
- 2021-07-13 CN CN202121584512.9U patent/CN215271106U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114831761A (en) * | 2022-04-21 | 2022-08-02 | 广东卡沃罗氢科技有限公司 | Daily hydrogen-rich water electric toothbrush that uses of life |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211224 |