CN214484704U - Controllable local flushing device - Google Patents
Controllable local flushing device Download PDFInfo
- Publication number
- CN214484704U CN214484704U CN202120366165.6U CN202120366165U CN214484704U CN 214484704 U CN214484704 U CN 214484704U CN 202120366165 U CN202120366165 U CN 202120366165U CN 214484704 U CN214484704 U CN 214484704U
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- CN
- China
- Prior art keywords
- liquid supply
- temperature control
- supply bottle
- liquid
- soft supporting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000011010 flushing procedure Methods 0.000 title claims abstract description 16
- 239000007788 liquid Substances 0.000 claims abstract description 104
- 238000004140 cleaning Methods 0.000 claims abstract description 16
- 238000005406 washing Methods 0.000 claims abstract description 7
- 238000010438 heat treatment Methods 0.000 claims description 39
- 230000002262 irrigation Effects 0.000 claims description 6
- 238000003973 irrigation Methods 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 239000000725 suspension Substances 0.000 claims 1
- 230000000699 topical effect Effects 0.000 claims 1
- 210000000214 mouth Anatomy 0.000 abstract description 21
- 238000001356 surgical procedure Methods 0.000 abstract description 8
- 230000003239 periodontal effect Effects 0.000 abstract description 2
- 239000003814 drug Substances 0.000 description 26
- 239000004033 plastic Substances 0.000 description 17
- 238000001816 cooling Methods 0.000 description 12
- 238000001802 infusion Methods 0.000 description 11
- 239000000463 material Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 210000001015 abdomen Anatomy 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000740 bleeding effect Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 210000003811 finger Anatomy 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011232 storage material Substances 0.000 description 2
- 210000003813 thumb Anatomy 0.000 description 2
- 206010067268 Post procedural infection Diseases 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002297 emergency surgery Methods 0.000 description 1
- 210000005224 forefinger Anatomy 0.000 description 1
- 238000001990 intravenous administration Methods 0.000 description 1
- 238000010253 intravenous injection Methods 0.000 description 1
- 210000004932 little finger Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000000472 traumatic effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model relates to the technical field of medical flushing equipment, in particular to a controllable local flushing device, which comprises a handle type injector, wherein the liquid outlet end of the handle type injector is communicated with a cleaning needle head, and the liquid inlet end of the handle type injector is communicated with a liquid supply structure through a liquid conveying pipe; the liquid supply structure comprises a liquid supply bottle and a temperature control structure surrounding the outer side of the side wall of the liquid supply bottle, the temperature control structure comprises a soft supporting belt, and a plurality of temperature control strips are fixed on one surface of the soft supporting belt facing the liquid supply bottle; one end of the soft supporting belt is provided with a fixed rope, the other end of the soft supporting belt is provided with a fixed ring, and the fixed rope and the fixed ring are used for fixing the temperature control structure on the liquid supply bottle. This scheme has solved the inconvenient technical problem when using current washing unit to wash the oral cavity. The scheme can be applied to practice operations such as oral treatment flushing, periodontal surgery, oral surgery, dental surgery, oral emergency operation and the like.
Description
Technical Field
The utility model relates to a medical flushing device technical field, concretely relates to controllable formula local washing unit.
Background
When performing oral treatment irrigation, periodontal surgery, oral surgery, dental surgery, and oral emergency surgery, a certain amount of liquid medicine needs to be applied to the affected part or the surgical site in the oral cavity in an irrigation manner. The existing operation is to use a common syringe to suck a certain amount of liquid medicine, the liquid outlet end of the common syringe is communicated with a needle head, and the needle head is used to wash the affected part or the operation part. When the liquid medicine in the common syringe is used up, the needle needs to be taken out of the oral cavity of a patient, and then the liquid medicine is sucked from the needle. The operation is repeated in such a cycle, which brings inconvenience to operators and increases the possibility of the needle being contaminated.
SUMMERY OF THE UTILITY MODEL
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a controllable local flushing device comprises a handle type injector, wherein a liquid outlet end of the handle type injector is communicated with a cleaning needle head, and a liquid inlet end of the handle type injector is communicated with a liquid supply structure through a liquid conveying pipe; the liquid supply structure comprises a liquid supply bottle and a temperature control structure surrounding the outer side of the side wall of the liquid supply bottle, the temperature control structure comprises a soft supporting belt, and a plurality of temperature control strips are fixed on one surface of the soft supporting belt facing the liquid supply bottle; one end of the soft supporting belt is provided with a fixed rope, the other end of the soft supporting belt is provided with a fixed ring, and the fixed rope and the fixed ring are used for fixing the temperature control structure on the liquid supply bottle.
The application method, the principle and the advantages of the scheme are as follows: the scheme uses the handle type injector in the prior art to replace a common injector, can realize more continuous oral cavity flushing, and does not need to frequently take the flushing device out of the oral cavity and then supplement liquid medicine from the needle head. When the temperature of the liquid medicine in the liquid supply bottle needs to be adjusted, the temperature control structure is wrapped on the outer side of the side wall of the liquid supply bottle. Then the fixing rope is tied on the fixing ring, so that the temperature control structure is fixed on the outer side of the liquid supply bottle, and the liquid medicine in the liquid supply bottle is heated or cooled by the temperature control structure.
The scheme reduces the possibility of operation pollution caused by the need of ceaseless liquid adding for flushing, can also shorten the time required by the operation, and particularly can strive for more time for emergency patients and reduce postoperative infection. In addition, the device can preheat the liquid medicine, and particularly in winter, the device can not cause uncomfortable feeling to a patient (when the oral cavity is generally flushed and a traumatic operation is not performed) due to the fact that the temperature of the liquid medicine is too low to stimulate teeth or the oral cavity. Besides being applied to oral cavity irrigation, the device of the scheme can also be used for vaginal irrigation and other operations after the liquid medicine is heated. The device can pre-cool the liquid medicine, and ensures that the temperature of the liquid in the liquid supply bottle is not too high. In oral surgery, if the temperature of the liquid medicine is too high, oral bleeding can be promoted, which is not beneficial to the operation.
Preferably, as an improvement, the accuse temperature strip is equipped with the interval along the length direction equipartition of soft supporting band between the adjacent accuse temperature strip, parallel arrangement and the length direction perpendicular with soft supporting band between a plurality of accuse temperature strips. Like this, be equipped with the interval between the adjacent accuse temperature strip, and soft supporting band is soft material, can realize will accuse temperature strip parcel and fix in the liquid supply bottle outside.
Preferably, as an improvement, the temperature control strip is a heating sheet or a strip-shaped ice bag. The heating plate and the strip-shaped ice bag are conventional heating and cooling devices (structures) and are easy to obtain and manufacture.
Preferably, as an improvement, a component box is fixed on one side of the soft supporting belt away from the liquid supply bottle, and a fixing ring is fixed on the component box; the element box is used for placing a protective resistor. Thus, the arrangement of the element box plays two roles of placing the protective resistor and arranging the fixing ring. The arrangement of the protective resistor can ensure that the whole circuit cannot be damaged due to overlarge current when the heating sheet is in short circuit.
Preferably, as an improvement, the liquid supply bottle is provided with a hanging ring. The liquid supply bottle can be hung on the bracket by using the hanging ring.
Preferably, as an improvement, the liquid supply bottle is provided with an annular protrusion for preventing the temperature control structure from sliding downwards. In order to prevent the temperature control structure from sliding downwards, the outer side of the side wall of the liquid supply bottle is provided with an annular bulge, and when the temperature control structure is arranged on the liquid supply bottle, the annular bulge is positioned below the temperature control structure to prevent the temperature control structure from sliding downwards and falling off.
Preferably, as a modification, the injection end of the cleaning needle is curved. Because the angle that the washing syringe needle inclines in the oral cavity is limited, when the tooth below or the top of oral cavity needs to be washd, use the straight washing syringe needle of conventionality, will be difficult to incline to the angle that just points to the target site, and use the washing syringe needle that the injection end bending set up, can wash the target site comparatively easily.
Drawings
Fig. 1 is a front view of a controllable localized irrigation device of embodiment 1.
Fig. 2 is an expanded view of the heating belt of example 1 (showing the heating surface).
Fig. 3 is an expanded view of the heating belt of example 1 (showing the non-heated side).
Fig. 4 is a schematic circuit diagram of a heat patch according to embodiment 1.
Fig. 5 is a front view of the liquid-feeding bottle of embodiment 2.
FIG. 6 is an expanded view of the cooling belt of example 3 (showing the cooling surface).
FIG. 7 is an expanded view of the cooling belt of example 3 (showing the non-cooling side).
Fig. 8 is a front view of the infusion tube of example 4.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: the device comprises a handle type syringe 1, a first holding structure 2, a second holding structure 3, a third holding structure A part 4, a third holding structure B part 5, an infusion tube 6, a cleaning needle 7, a liquid inlet end 8, a liquid outlet end 9, a liquid supply bottle 10, a hanging ring 11, a bottle mouth 12, a plastic hard needle 13, an air filter element 14, a heating belt 15, an element box 16, a heating control switch 17, a fixed rope 18, a fixed ring 19, a conducting wire 20, a soft supporting belt 21, a heating sheet 22, a protective resistor 23, an annular bulge 24, a strip-shaped ice bag 25, a threaded bottle cap 26, a branch tube 27 and a Robert stop clamp 28.
Example 1
As shown in figure 1, the controllable local flushing device comprises a handle type injector 1, a cleaning needle 7 and a liquid supply structure, wherein the handle type injector 1 and the liquid supply structure are communicated through a conventional liquid conveying pipe 6 in the prior art. This scheme has utilized conventional handle formula syringe 1 among the prior art to carry out oral cavity to the patient and has washd. The structure of the hand-held syringe 1 is shown in fig. 1, and the structure and the use mode of the prior art hand-held syringe 1 are generally described: the handle type injector 1 comprises an injector body, a first holding structure 2, a second holding structure 3 and a third holding structure are arranged on the injector body, and the third holding structure comprises a third holding structure A part 4 and a third holding structure B part 5. The left end of the handle type injector 1 is a liquid outlet end 9 for fixing the cleaning needle 7. The liquid outlet end 9 of the existing handle type injector 1 is provided with a connecting pipe (which is shielded by a cleaning needle 7 in figure 1) made of plastic material, and the cleaning needle 7 can be directly clamped on the connecting pipe made of plastic material. The cleaning needle head 7 is also a conventional plastic soft needle head in the prior art, namely the whole cleaning needle head 7 is made of plastic materials, so that the oral cavity is prevented from being stabbed. The plastic soft needles with the types of 4, 5, 6, 7, 8, 12 and 16 can be used according to actual needs. The plastic soft needle head can be a straight needle head or a bent needle head with a bent injection end as shown in figure 1. The right end of the handle type injector 1 is provided with a liquid inlet end 8, and the liquid inlet end 8 is communicated with an infusion tube 6. The liquid inlet end 8 of the existing handle type injector 1 is provided with a connector (which is shielded by a liquid conveying pipe 6 in figure 1), and the liquid conveying pipe 6 is clamped at the connector. The infusion tube 6 is a conventional intravenous tube in the prior art. Namely, the scheme utilizes the conventional handle type injector 1, the cleaning needle 7 and the infusion tube 6 in the prior art to be assembled. When in use, the forefinger is placed in the first holding structure 2, the middle finger, the ring finger and the little finger are placed in the second holding structure 3, the thumb is abutted against the part A4 of the third holding structure, and the palm and the abdomen are abutted against the part B5 of the third holding structure. The third holding structure is pushed by the thumb and the palm abdomen, so that the liquid medicine in the handle type injector 1 can be injected into the cleaning needle head 7 to clean the oral cavity. The volume of the handle type injector 1 is 20ml or 50ml), when the liquid medicine in the handle type injector 1 is used up, the third holding structure is pulled rightwards, and the liquid medicine can enter the handle type injector 1 through the liquid conveying pipe 6. That is, the third holding structure moves leftwards to inject the cleaning liquid medicine into the oral cavity, and the third holding structure moves rightwards to input the cleaning liquid medicine into the handle type injector 1 by the liquid supply structure.
In order to increase the comfort degree of a patient, the scheme is improved on the basis of the existing handle type injector 1, in particular to an improvement on a liquid supply structure for supplying liquid medicine to the handle type injector 1, and a temperature control structure is added, and the scheme specifically comprises the following steps:
as shown in fig. 1, the liquid supply structure includes a liquid supply bottle 10 and a heating belt 15 (a specific temperature control structure). The lower end of the liquid supply bottle 10 comprises a bottle mouth 12, and a rubber plug which is conventional in the prior art is plugged in the bottle mouth 12. A plastic hard needle 13 (the plastic hard needle 13 is commonly used for intravenous injection tubes) is inserted into one end of the infusion tube 6 far away from the handle type injector 1, and in the prior art, the lower end of the plastic hard needle 13 is communicated with an air filter element 14 through a vent pipe. The plastic hard needle 13 is inserted into the rubber plug of the bottle mouth 12, the liquid supply bottle 10 is a cylindrical plastic bottle (made of PVC material), the upper end of the liquid supply bottle 10 is integrally formed with a hanging ring 11, and the hanging ring 11 is used for hanging the liquid supply bottle 10 on a support. The heating band 15 is wrapped on the outer side of the side wall of the liquid supply bottle 10. In conjunction with fig. 2 (the heating surface of the heating belt 15) and fig. 3 (the non-heating surface of the heating belt 15), the heating belt 15 includes a wide strip-shaped soft support belt 21, and in this embodiment, the material of the soft support belt 21 is specifically silicone. A heating plate 22 (specifically, a temperature control strip) is fixed to the soft support band 21 by a small bolt-and-nut structure. The number of the heating pieces 22 is a plurality of blocks, the heating pieces are uniformly distributed along the length direction of the soft supporting belt 21, an interval is arranged between the adjacent heating pieces 22, and the heating pieces 22 are arranged in parallel and are vertical to the length direction of the soft supporting belt 21. In the present embodiment, the prior art PTC ceramic heater chip is used as the heater chip 22, and the maximum surface temperature of the heater chip 22 is 40 ℃. The element case 16 is fixed to one surface of the soft support band 21 (fig. 3) to which the heating chip 22 is not fixed, by a small bolt and nut structure. The element case 16 has a rectangular parallelepiped shape and is formed by bonding six side walls. The side walls of the element case 16 close to the soft support bands 21 are fixed to the soft support bands 21 by a small bolt and nut structure. A heating control switch 17 is bonded on the side wall of the component box 16 far from the soft support belt 21 for controlling the on-off of the heating sheet 22, and the heating control switch 17 is a switch for controlling whether the control circuit is communicated or not in the prior art. The side wall of the element box 16 is also integrally formed with a fixing ring 19, and the element box 16 is provided with a protective resistor 23 (see fig. 4). Two fixing cords 18 are integrally formed at the ends of the soft support bands 21 remote from the fixing rings 19. After being connected in parallel, the heating sheets 22 are connected in series with the heating control switch 17 and the protection resistor 23, as shown in fig. 4, the power supply of the heating sheets 22 is commercial power, and the power is taken through a lead 20 (see fig. 3). The mains power needs to be transformed by the voltage adapter to supply power to the heating plate 22 (working voltage 12V).
The specific implementation process comprises the following steps: when the liquid medicine in the liquid supply bottle 10 needs to be heated, the heating tape 15 is wrapped on the outer side of the side wall of the liquid supply bottle 10 in a state that the heating surface faces the liquid supply bottle 10. The fixing string 18 is then tied to the fixing ring 19, thereby fixing the heating tape 15 to the outside of the liquid supply bottle 10. The heating control switch 17 is turned on to heat the liquid medicine in the liquid supply bottle 10, so that the liquid medicine for washing the oral cavity has a certain temperature, and the uncomfortable feeling of the patient caused by the low temperature of the liquid medicine is avoided.
Example 2
In this embodiment, an improvement is made on embodiment 1, as shown in fig. 5, in order to prevent the heating tape 15 from sliding down, an annular protrusion 24 is integrally formed on the outer side of the side wall of the liquid supply bottle 10, and when the heating tape 15 is mounted on the liquid supply bottle 10, the annular protrusion 24 is located below the heating tape 15 to prevent the downward sliding. In addition, the annular protrusion 24 may also be a common rubber ring sleeved on the outside of the liquid supply bottle 10, and is fixed on the outside of the sidewall of the liquid supply bottle 10 by friction.
Example 3
The present embodiment is improved on the structure of embodiment 2, the temperature control structure is changed to a cooling zone, and the present embodiment is improved on the basis of the heating zone 15 of the embodiment. As shown in fig. 6 and 7, the cooling belt includes a soft support belt 21 made of silica gel and a strip-shaped ice bag 25 (a specific temperature control strip), and the strip-shaped ice bag 25 is adhered and fixed on the cooling surface of the soft support belt 21. The strip-shaped ice bag 25 is formed by packaging a cold storage agent in a strip-shaped plastic bag. The cold storage agent is a conventional polymeric water-accumulating compound in the prior art, namely a polymeric water-accumulating compound formed by absorbing a certain amount of water in water-absorbing resin. A common water-absorbing resin is sodium polyacrylate, which can be used in this example to formulate a stick-shaped ice bag 25. The fixing ring 19 is directly thermocompression-fixed or adhesively-fixed to the non-cooling surface (i.e., the surface to which the strip-shaped ice bag 25 is not fixed) of the soft support band 21. The ends of the soft support bands 21 remote from the fixed rings 19 are also integrally formed with two fixed cords 18. The cooling belt with the bar-shaped ice bag 25 can be placed in a refrigerator to condense the bar-shaped ice bag 25, then the bar-shaped ice bag 25 is wrapped outside the liquid supply bottle 10, and the fixing rope 18 is tied on the fixing ring 19, thereby realizing the fixation of the cooling belt. The cooling zone ensures that the temperature of the liquid in the liquid supply bottle 10 is not too high. In oral surgery, if the temperature of the liquid medicine is too high, oral bleeding can be promoted, which is not beneficial to the operation.
Example 4
The present embodiment is an improvement of the structure of embodiment 2, specifically, an improvement of the structure of the infusion tube 6. As shown in fig. 8, one end of the infusion tube 6 away from the handle-type injector 1 is designed into a Y shape, specifically: the end of the infusion tube 6 far away from the handle type injector 1 is communicated with a branch tube 27, the end of the branch tube 27 far away from the infusion tube 6 is communicated with a threaded bottle cap 26 (i.e. a bottle cap which is provided with internal threads and can be screwed with the bottle mouth 12 with external threads), and the branch tube 27 is penetrated and hermetically bonded at the top of the threaded bottle cap 26. The screw cap 26 is adapted to a medicine bottle having a screw mouth, and the screw cap 26 is replaceable to be connected to the corresponding medicine bottle when the structure of the medicine bottle is different from that of the liquid supply bottle 10 (using a rubber stopper) in embodiment 1. Of course, the end of the threaded cap 26 and the end of the plastic hard needle 13 can be used simultaneously. The branch tube 27 and the upper end of the infusion tube 6 are both provided with a Robert stop clamp 28 which is conventional in the prior art. When the plastic hard needle 13 is needed to be used, the Robert stop flow clamp 28 on the branch pipe 27 is closed; when the screw cap 26 is needed, the Robert stop flow clamp 28 at the end of the plastic hard needle 13 is closed; both robert flow stop clamps 28 can be opened if both the threaded cap 26 and the plastic hard needle 13 are required for use.
While the embodiments of the present invention have been described in detail with reference to the accompanying drawings, it is to be understood that the present invention is not limited to the embodiments and that various changes and modifications may be made therein by those skilled in the art without departing from the spirit and scope of the invention. These should also be considered as the scope of protection of the present invention, and these do not affect the effect of the implementation of the present invention and the utility of the patent. The techniques, shapes, and structural parts, which are omitted from the description of the present invention, are all known techniques.
Claims (7)
1. A controllable local flushing device comprises a handle type injector, and is characterized in that a cleaning needle head is communicated with a liquid outlet end of the handle type injector, and a liquid supply structure is communicated with a liquid inlet end of the handle type injector through a liquid conveying pipe; the liquid supply structure comprises a liquid supply bottle and a temperature control structure surrounding the outer side of the side wall of the liquid supply bottle, the temperature control structure comprises a soft supporting belt, and a plurality of temperature control strips are fixed on one surface of the soft supporting belt facing the liquid supply bottle; one end of the soft supporting belt is provided with a fixed rope, the other end of the soft supporting belt is provided with a fixed ring, and the fixed rope and the fixed ring are used for fixing the temperature control structure on the liquid supply bottle.
2. A controllable local flushing device according to claim 1, characterized in that the temperature control strips are uniformly distributed along the length direction of the soft supporting band, a space is provided between adjacent temperature control strips, and a plurality of temperature control strips are arranged in parallel and perpendicular to the length direction of the soft supporting band.
3. A controllable localized washing device as claimed in claim 2, wherein said temperature control strip is a heating plate or a strip of ice bag.
4. The controllable local flushing device of claim 3, wherein a component box is fixed on one side of the soft supporting belt away from the liquid supply bottle, and a fixing ring is fixed on the component box; the element box is used for placing a protective resistor.
5. A controllable local flushing device according to claim 4, characterized in that the liquid supply bottle is provided with a suspension loop.
6. A controllable local flushing device according to claim 5, wherein the liquid supply bottle is provided with an annular protrusion for preventing the temperature control structure from sliding down.
7. A controllable topical irrigation device according to claim 6, wherein the injection end of the cleaning needle is curved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120366165.6U CN214484704U (en) | 2021-02-08 | 2021-02-08 | Controllable local flushing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120366165.6U CN214484704U (en) | 2021-02-08 | 2021-02-08 | Controllable local flushing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214484704U true CN214484704U (en) | 2021-10-26 |
Family
ID=78220450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120366165.6U Expired - Fee Related CN214484704U (en) | 2021-02-08 | 2021-02-08 | Controllable local flushing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214484704U (en) |
-
2021
- 2021-02-08 CN CN202120366165.6U patent/CN214484704U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211026 |
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| CF01 | Termination of patent right due to non-payment of annual fee |