CN113349835A - Skin surface tissue cutting sampler for dermatology - Google Patents
Skin surface tissue cutting sampler for dermatology Download PDFInfo
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- CN113349835A CN113349835A CN202110799075.0A CN202110799075A CN113349835A CN 113349835 A CN113349835 A CN 113349835A CN 202110799075 A CN202110799075 A CN 202110799075A CN 113349835 A CN113349835 A CN 113349835A
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- skin
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- 238000007790 scraping Methods 0.000 claims abstract description 13
- 238000010521 absorption reaction Methods 0.000 claims abstract description 7
- 238000005070 sampling Methods 0.000 claims description 8
- 230000000694 effects Effects 0.000 abstract description 8
- 239000007788 liquid Substances 0.000 abstract description 7
- 208000015181 infectious disease Diseases 0.000 abstract description 3
- 210000003491 skin Anatomy 0.000 description 66
- 210000001519 tissue Anatomy 0.000 description 18
- 208000002197 Ehlers-Danlos syndrome Diseases 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- 208000032843 Hemorrhage Diseases 0.000 description 2
- 210000004027 cell Anatomy 0.000 description 2
- 210000002615 epidermis Anatomy 0.000 description 2
- 230000003902 lesion Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 208000001840 Dandruff Diseases 0.000 description 1
- 210000001789 adipocyte Anatomy 0.000 description 1
- 238000003759 clinical diagnosis Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 210000002808 connective tissue Anatomy 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 210000004207 dermis Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 206010033675 panniculitis Diseases 0.000 description 1
- 230000001575 pathological effect Effects 0.000 description 1
- 208000017520 skin disease Diseases 0.000 description 1
- 210000000434 stratum corneum Anatomy 0.000 description 1
- 210000004304 subcutaneous tissue Anatomy 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000001755 vocal effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B10/00—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
- A61B10/0045—Devices for taking samples of body liquids
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Hematology (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention relates to the field of medical appliances, in particular to a skin surface tissue cutting sampler for dermatology, which comprises a handheld supporting frame, a skin pinching component, a cutting and scraping component, a resetting component and the like; the handheld supporting frame is provided with a skin pinching assembly, the skin pinching assembly is provided with a cutting seam scraping assembly, and the cutting seam scraping assembly is provided with a reset assembly. The second of pinching the subassembly through skin pushes away the cooperation of frame, second clamping frame and the device on it for pinching the skin surface, reaches the effect of pinching the quick same dynamics of skin, through the cooperation of the swing span of wiping the subassembly, second torsion spring and absorption cover and device on it, be used for automatic skin surface tissue liquid that will scrape collect, reach the effect that reduces the infection risk.
Description
Technical Field
The invention relates to the field of medical appliances, in particular to a skin surface tissue cutting sampler for dermatology.
Background
The skin is divided into two layers, namely epidermis and dermis, and the epidermis is arranged on the surface of the skin and can be divided into two parts, namely a stratum corneum and a germinal layer. The keratinized cells form the horny layer, become scurf after falling off, and the germinal layer cells are continuously divided, and can supplement the fallen horny layer. There is subcutaneous tissue under the skin, which is loose connective tissue and has a large number of fat cells, so the pathological examination of the section of skin tissue has important significance for clinical diagnosis of certain skin diseases. The sample volume of the lesion skin is small, and the lesion skin can be scraped or cut for sampling.
The current section of taking skin tissue, generally, medical personnel's manual handheld utensil scrapes the skin surface and splits, scrapes the in-process that splits to skin surface, and the dynamics is inhomogeneous, causes the hemorrhage to skin surface easily, needs the manual skin of people to be pulled and gets, gathers and can not both hands closely cooperate, gathers the success rate and hangs down, and can contact with patient's skin when the operator operates, and the infection risk is very big, and the security is low, and the scraper still accidentally injures operator self easily.
Therefore, there is a need for a high-safety skin surface tissue cutting and sampling device for dermatology, which can rapidly pull skin to scrape the skin surface with the same force, and can automatically sample the skin.
Disclosure of Invention
With the current section of taking skin tissue of solving, generally all be medical personnel hand-held instrument and scrape to skin surface and split, this in-process, the dynamics is inhomogeneous, causes the hemorrhage to skin surface easily, and gathers the problem that the success rate is low, provides one kind and can get skin fast and take and carry out same dynamics to skin surface and scrape split, can sample, the high skin branch of academic or vocational study of security is with skin surface tissue cutting sampler automatically.
The technical implementation scheme of the invention is as follows: the utility model provides a skin surface tissue cutting sampler for dermatology department, including handheld carriage, skin pinch subassembly, joint-cutting scrape get subassembly and reset assembly, be equipped with skin pinch subassembly on the handheld carriage, skin pinch is equipped with the joint-cutting on the subassembly and scrapes and get the subassembly, and the joint-cutting is scraped and is got and be equipped with reset assembly on the subassembly.
Further, the skin pinching assembly comprises a first clamping frame, an electric push rod, a first pushing frame, a second pushing frame, a first supporting frame, a second clamping frame, a guide strip and a first spring, a first clamping frame fixedly connected with the inside of the handheld supporting frame, an electric push rod fixedly connected with the first clamping frame, a first pushing frame fixedly connected with the electric push rod on the first clamping frame, a second pushing frame fixedly connected with the electric push rod on the electric push rod, a first pushing frame fixedly connected with the second pushing frame, a first supporting frame fixedly connected with the first clamping frame on the first clamping frame, a second clamping frame slidably connected with the second clamping frame on the first supporting frame, a guide strip fixedly connected with the top of the second clamping frame, and a first spring connected between the second clamping frame and the first supporting frame.
Further, the joint-cutting scraping assembly comprises a slotting wedge-shaped block, a second spring, a sliding frame, a first sliding rail plate, a sliding block, a clamping frame, a third spring, a second supporting frame, a second sliding rail plate, a fourth spring, a cutter frame and a scraper, wherein the first clamping frame is connected with the slotting wedge-shaped block in a sliding way, the second spring is connected between the first clamping frame and the slotting wedge-shaped block, the sliding frame is connected on the first clamping frame in a sliding way, the slotting wedge-shaped block is movably matched with the sliding frame, the first sliding rail plate is fixedly connected on the sliding frame, the sliding block is connected on the first sliding rail plate in a sliding way, the sliding block is connected with the first pushing frame in a sliding way, the clamping frame is connected with the clamping frame in a sliding way, the third spring is fixedly connected on the clamping frame, the other end of the third spring is fixedly connected with the sliding frame, the second supporting frame is fixedly connected on the first sliding rail plate, and the second sliding rail plate is connected on the second supporting frame in a sliding way, and a fourth spring is fixedly connected to the second slide rail plate, the other end of the fourth spring is fixedly connected with the first slide rail plate, a cutter frame is connected to the second slide rail plate in a sliding manner, and a scraper is fixedly connected to one side of the cutter frame.
Furthermore, the reset assembly comprises a guide frame, a swinging plate and a first torsion spring, the guide frame is fixedly connected onto the second support frame, the swinging plate is rotatably connected onto the guide frame, and the first torsion spring is connected between the swinging plate and the guide frame.
Further, still including wiping the subassembly, the joint-cutting is scraped and is equipped with on the subassembly and wipes the subassembly, wipes the subassembly and pushes away the frame including swing span, second torsion spring, absorption cover and third, and first slide rail board one side rotary type is connected with the swing span, is connected with second torsion spring between swing span and the first slide rail board, and the cover has the absorption cover on the swing span, and fixedly connected with third pushes away the frame on the slider.
Furthermore, the handheld support frame further comprises a rubber pad, and the rubber pad is fixedly connected to the handheld support frame.
The invention has the following advantages:
the second of pinching the subassembly through skin pushes away the cooperation of frame, second clamping frame and guide bar and device on it for pinch tight to the skin surface, reach the effect of pinching tight to the quick same dynamics of skin.
Scrape the fluting wedge of getting the subassembly, second spring and carriage three's cooperation through the lancing, realized carrying out the purpose of taking a sample to different thickness and elastic skin surface tissue liquid, improved the practicality of this equipment.
Through the swing span of wiping the subassembly, second torsion spring and absorption cover and the cooperation of device on it for the skin surface tissue liquid that will scrape is automatically collected, reaches the effect that reduces the infection risk, is used for protecting the skin surface through the rubber pad.
Drawings
Fig. 1 is a schematic perspective view of a first embodiment of the present invention.
Fig. 2 is a schematic perspective view of a second embodiment of the present invention.
FIG. 3 is a schematic perspective view of a skin-gripping assembly in accordance with the present invention.
Fig. 4 is a schematic view of a first partial body structure of the lancing wiping assembly of the present invention.
Fig. 5 is a schematic view of a second partial body construction of the lancing wiping assembly of the present invention.
Fig. 6 is a schematic perspective view of the reduction assembly of the present invention.
Fig. 7 is a schematic perspective view of the wiping assembly of the present invention.
In the above drawings: 1: handheld support frame, 2: skin-pinching member, 21: first clamping frame, 22: electric putter, 23: first pusher, 24: second pushing frame, 25: first support bracket, 26: second clamping frame, 27: guide strip, 28: first spring, 3: kerf scraping assembly, 31: slotted wedge block, 32: second spring, 33: carriage, 34: first slide rail plate, 35: slider, 36: card rack, 37: third spring, 38: second support frame, 39: second slide plate, 310: fourth spring, 311: cutting blade holder, 312: scraper, 4: reset assembly, 41: guide frame, 42: swing plate, 43: first torsion spring, 5: wiping assembly, 51: swing frame, 52: second torsion spring, 53: adsorption sleeve, 54: third pushing frame, 6: and (7) a rubber pad.
Detailed Description
The standard parts used in the invention can be purchased from the market, the special-shaped parts can be customized according to the description and the description of the attached drawings, and the specific connection mode of each part adopts the conventional means of mature bolts, rivets, welding, sticking and the like in the prior art, and the detailed description is not repeated.
Example 1
The utility model provides a skin surface tissue cutting sampler for dermatology, as shown in fig. 1-2, including handheld carriage 1, subassembly 2 is held between the fingers to the skin, the subassembly 3 and the subassembly 4 that resets are scraped to the kerf, it holds between the fingers to be equipped with the subassembly 2 to hold between the fingers to the skin on handheld carriage 1, subassembly 2 is held between the fingers to the skin is used for holding between the fingers the skin surface, it scrapes the subassembly 3 to be equipped with the kerf on subassembly 2 to hold between the fingers to the skin, the subassembly 3 is scraped to the kerf and is used for taking a sample to different thickness and elastic skin surface tissue liquid, the kerf is scraped and is got and is equipped with the subassembly 4 that resets on subassembly 3, subassembly 4 that resets is used for scraping the kerf and gets subassembly 3 and resets.
Example 2
On the basis of embodiment 1, as shown in fig. 3-7, the skin pinching assembly 2 includes a first clamping frame 21, an electric push rod 22, a first push frame 23, a second push frame 24, a first support frame 25, a second clamping frame 26, a guide strip 27 and a first spring 28, the first clamping frame 21 is fixedly connected inside the handheld support frame 1, the electric push rod 22 is fixedly connected on the first clamping frame 21, the first push frame 23 is fixedly connected on the electric push rod 22, the second push frame 24 is fixedly connected on the first push frame 23, the first support frame 25 is fixedly connected on the first clamping frame 21, the first clamping frame 21 is matched with the second clamping frame 26 and devices thereon for pinching the skin surface, the second clamping frame 26 is slidably connected on the first support frame 25, the guide strip 27 is fixedly connected on the top of the second clamping frame 26, the first spring 28 is connected between the second clamping frame 26 and the first support frame 25, the first spring 28 is used to reset the second clamping frame 26.
The lancing scraping assembly 3 comprises a slotting wedge-shaped block 31, a second spring 32, a sliding frame 33, a first sliding rail plate 34, a sliding block 35, a clamping frame 36, a third spring 37, a second supporting frame 38, a second sliding rail plate 39, a fourth spring 310, a cutting tool frame 311 and a scraping plate 312, wherein the slotting wedge-shaped block 31 is slidably connected on the first clamping frame 21, the second spring 32 is connected between the first clamping frame 21 and the slotting wedge-shaped block 31, the second spring 32 is used for resetting the slotting wedge-shaped block 31, the sliding frame 33 is slidably connected on the first clamping frame 21, the slotting wedge-shaped block 31 is movably matched with the sliding frame 33, the first sliding rail plate 34 is fixedly connected on the sliding frame 33, the sliding block 35 is slidably connected on the first sliding rail plate 34, the clamping frame 36 is slidably connected on the sliding frame 33, the clamping frame 36 is used for limiting and clamping the second sliding rail plate 39, the third spring 37 is fixedly connected on the clamping frame 36, the other end of the third spring 37 is fixedly connected with the sliding frame 33, the top of the first sliding rail plate 34 is fixedly connected with a second supporting frame 38, the second supporting frame 38 is slidably connected with a second sliding rail plate 39, the second sliding rail plate 39 is fixedly connected with a fourth spring 310, the fourth spring 310 is in a compression state initially, the other end of the fourth spring 310 is fixedly connected with the first sliding rail plate 34, the second sliding rail plate 39 is slidably connected with a cutter frame 311, the cutter frame 311 is used for cutting the surface of the skin, and a scraper 312 is fixedly connected to one side of the cutter frame 311.
The reset assembly 4 comprises a guide frame 41, a swing plate 42 and a first torsion spring 43, the guide frame 41 is fixedly connected to the second support frame 38, the guide frame 41 is located above the second slide rail plate 39, the guide frame 41 is used for resetting the cutting tool holder 311 and the upper device thereof, the swing plate 42 is rotatably connected to the guide frame 41, the first torsion spring 43 is connected between the swing plate 42 and the guide frame 41, and the first torsion spring 43 is used for resetting the swing plate 42.
The joint-cutting scraping component 3 is provided with a scraping component 5, the scraping component 5 comprises a swing frame 51, a second torsion spring 52, an adsorption sleeve 53 and a third pushing frame 54, one side of the first slide rail plate 34 is rotatably connected with the swing frame 51, the second torsion spring 52 is connected between the swing frame 51 and the first slide rail plate 34, the second torsion spring 52 is used for resetting the swing frame 51, the swing frame 51 is sleeved with the adsorption sleeve 53, the sliding block 35 is fixedly connected with the third pushing frame 54, and the third pushing frame 54 is used for pushing the swing frame 51 to move.
Still including rubber pad 6, fixedly connected with rubber pad 6 on handheld carriage 1, rubber pad 6 is used for protecting the skin surface.
When the skin surface tissue fluid sampling is needed to be carried out on the skin patient, firstly, medical staff manually aim the device at the skin surface of the skin patient, then the medical staff presses the device to move downwards, the skin surface is located between the second clamping frame 26 and the first clamping frame 21, then the medical staff manually controls the telescopic rod of the electric push rod 22 to contract, the telescopic rod of the electric push rod 22 contracts to drive the sliding block 35 and the device on the sliding block to move towards one side close to the second supporting frame 38, the second push frame 24 is in contact with the guide strip 27, the second clamping frame 26 is further driven to move towards one side close to the first clamping frame 21, the first spring 28 is compressed accordingly, the skin surface is pinched through the second clamping frame 26, and the effect of pinching the skin with the same force is achieved. The skin surface of pinching can contact with fluting wedge 31 for fluting wedge 31 is to keeping away from second clamping frame 26 one side direction motion, and second spring 32 is stretched thereupon, and then makes carriage 33 and last device upward movement, because patient's skin surface thickness and elasticity all are all diverse, thereby the skin surface that the patient pinched promotes the distance that fluting wedge 31 moved also different, has realized carrying out the purpose of taking a sample to different thickness and elastic skin surface tissue liquid, has improved the practicality of this equipment.
When the telescopic rod of the electric push rod 22 is continuously contracted, the cutter frame 311 is contacted with the swinging plate 42, and further the swinging plate 42 swings, the first torsion spring 43 is compressed, at the same time, the cutter frame 311 also moves to be contacted with the skin surface to cut the skin surface, and the same level of effect of cutting the skin surface is achieved, the telescopic rod of the electric push rod 22 is continuously contracted again, the first push frame 23 is contacted with the clamping frame 36, so that the clamping frame 36 does not clamp the second slide rail plate 39 any more, the third spring 37 is compressed, as the initial state of the fourth spring 310 is compressed, the fourth spring 310 is reset, the second slide rail plate 39 and the devices on the second slide rail plate 39 move upwards, the scraped skin surface tissue fluid is conveniently taken out, at the same time, the telescopic rod of the electric push rod 22 is continuously contracted again, so that the third push frame 54 is contacted with the swinging frame 51, and the second torsion spring 52 is compressed accordingly, and then make swing span 51 and the device on it to being close to scraper blade 312 one side swing to drive and adsorb cover 53 and absorb the skin surface tissue liquid on scraper blade 312, medical personnel manually take out absorption cover 53 can, reach the effect that the skin surface tissue liquid that will scrape well automatically was collected.
After sampling the tissue fluid on the skin surface, the medical staff manually controls the telescopic rod of the electric push rod 22 to reset, the telescopic rod of the electric push rod 22 resets to drive the slide block 35 and the device thereon to move towards the side far away from the second support frame 38, so that the third push frame 54 is not contacted with the swing frame 51 any more, the swing frame 51 resets under the action of the second torsion spring 52, and further when the slide block 35 and the device thereon move to a proper position, the first push frame 23 is not contacted with the clamping frame 36 any more, so that the cutting tool holder 311 is contacted with the guide frame 41, the second slide rail plate 39 and the device thereon move downwards under the action of the guide frame 41, the fourth spring 310 is compressed accordingly, when the second slide rail plate 39 continues to move downwards to be contacted with the clamping frame 36, so that the clamping frame 36 moves towards the side far away from the second support frame 38, the third spring 37 is compressed accordingly, and when the cutting tool holder 311 moves to be contacted with the swing plate 42, the second slide plate 39 is again clamped by the clamp 36 for the next operation.
After the sliding block 35 and the upper device thereof are completely reset, the second pushing frame 24 is not contacted with the guide strip 27, the second clamping frame 26 and the upper device thereof are reset under the action of the first spring 28 and do not pinch the skin, and then the slotted wedge-shaped block 31 is reset under the action of the second spring 32, so that the sliding frame 33 and the upper device thereof are also reset, and at the moment, the medical staff takes the equipment off the skin of the patient. Wherein the rubber pad 6 is used to protect the skin surface, which has the effect of reducing the friction of the device against the skin surface.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides a skin surface tissue cutting sampler for dermatology, characterized by, including handheld carriage, skin pinch subassembly, joint-cutting scrape get subassembly and reset assembly, be equipped with skin pinch subassembly on the handheld carriage, be equipped with the joint-cutting on the skin pinch subassembly and scrape and get the subassembly, the joint-cutting is scraped and is equipped with reset assembly on the subassembly.
2. The dermatological skin surface tissue cutting and sampling device as claimed in claim 1, wherein the skin pinching assembly includes a first clamping frame, a power-driven push rod, a first pushing frame, a second pushing frame, a first supporting frame, a second clamping frame, a guide strip and a first spring, the first clamping frame is fixedly connected to the inside of the hand-held supporting frame, the power-driven push rod is fixedly connected to the first clamping frame, the second pushing frame is fixedly connected to the first pushing frame, the first supporting frame is fixedly connected to the first supporting frame, the second clamping frame is slidably connected to the first supporting frame, the guide strip is fixedly connected to the top of the second clamping frame, and the first spring is connected between the second clamping frame and the first supporting frame.
3. The dermatological skin surface tissue cutting sampler of claim 2, wherein the lancing scraping member comprises a slotted wedge, a second spring, a sliding frame, a first sliding rail plate, a sliding block, a clamping frame, a third spring, a second supporting frame, a second sliding rail plate, a fourth spring, a cutting frame and a scraper, the slotted wedge is slidably connected to the first clamping frame, the second spring is connected between the first clamping frame and the slotted wedge, the sliding frame is slidably connected to the first clamping frame, the slotted wedge is movably engaged with the sliding frame, the first sliding rail plate is fixedly connected to the sliding frame, the sliding block is slidably connected to the first sliding rail plate, the clamping frame is slidably connected to the sliding frame, the third spring is fixedly connected to the clamping frame, the other end of the third spring is fixedly connected to the sliding frame, the second supporting frame is fixedly connected to the first sliding rail plate, the second support frame is connected with a second slide rail plate in a sliding mode, a fourth spring is fixedly connected onto the second slide rail plate, the other end of the fourth spring is fixedly connected with the first slide rail plate, a cutter frame is connected onto the second slide rail plate in a sliding mode, and a scraper is fixedly connected to one side of the cutter frame.
4. The dermatological skin surface tissue cutting and sampling device of claim 3, wherein the restoring member comprises a guide frame, a swing plate and a first torsion spring, the guide frame is fixedly connected to the second support frame, the swing plate is rotatably connected to the guide frame, and the first torsion spring is connected between the swing plate and the guide frame.
5. The dermatological skin surface tissue cutting and sampling device as claimed in claim 4, further comprising an erasing member, wherein the lancing and scraping member is provided with an erasing member, the erasing member comprises a swing frame, a second torsion spring, an absorption sleeve and a third pushing frame, the swing frame is rotatably connected to one side of the first slide rail plate, the second torsion spring is connected between the swing frame and the first slide rail plate, the absorption sleeve is sleeved on the swing frame, and the third pushing frame is fixedly connected to the slider.
6. The dermatological skin surface tissue cutting and sampling device of claim 5, further comprising a rubber pad, wherein the rubber pad is fixedly connected to the hand-held support frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110799075.0A CN113349835B (en) | 2021-07-15 | 2021-07-15 | Skin surface tissue cutting sampler for dermatology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110799075.0A CN113349835B (en) | 2021-07-15 | 2021-07-15 | Skin surface tissue cutting sampler for dermatology |
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| CN113349835A true CN113349835A (en) | 2021-09-07 |
| CN113349835B CN113349835B (en) | 2022-08-30 |
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| CN202110799075.0A Expired - Fee Related CN113349835B (en) | 2021-07-15 | 2021-07-15 | Skin surface tissue cutting sampler for dermatology |
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| CN113349835B (en) | 2022-08-30 |
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Inventor after: Yang Ting Inventor after: Chen Yongjun Inventor after: Zhou Bei Inventor after: Wan Changhua Inventor before: Wan Changhua |
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Effective date of registration: 20220811 Address after: Huangshi City, Hubei province xisaishanqu 435000 hospital Street No. 293 Applicant after: EDONG HEALTHCARE GROUP CITY CENTRAL Hospital Address before: 200000 room 2066, building 5, East 1248, No. 1687, Changyang Road, Yangpu District, Shanghai Applicant before: Wan Changhua |
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