CN114145694A - Formula capsule endoscope can break away - Google Patents
Formula capsule endoscope can break away Download PDFInfo
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- CN114145694A CN114145694A CN202210029568.0A CN202210029568A CN114145694A CN 114145694 A CN114145694 A CN 114145694A CN 202210029568 A CN202210029568 A CN 202210029568A CN 114145694 A CN114145694 A CN 114145694A
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- capsule
- endoscope
- capsule endoscope
- instrument channel
- rear end
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00064—Constructional details of the endoscope body
- A61B1/00071—Insertion part of the endoscope body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00002—Operational features of endoscopes
- A61B1/00011—Operational features of endoscopes characterised by signal transmission
- A61B1/00016—Operational features of endoscopes characterised by signal transmission using wireless means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00112—Connection or coupling means
- A61B1/00119—Tubes or pipes in or with an endoscope
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/005—Flexible endoscopes
- A61B1/0051—Flexible endoscopes with controlled bending of insertion part
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/005—Flexible endoscopes
- A61B1/0051—Flexible endoscopes with controlled bending of insertion part
- A61B1/0055—Constructional details of insertion parts, e.g. vertebral elements
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/012—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor characterised by internal passages or accessories therefor
- A61B1/018—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor characterised by internal passages or accessories therefor for receiving instruments
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/04—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances
- A61B1/041—Capsule endoscopes for imaging
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/04—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances
- A61B1/05—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances characterised by the image sensor, e.g. camera, being in the distal end portion
- A61B1/051—Details of CCD assembly
-
- 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
- A61B10/02—Instruments for taking cell samples or for biopsy
- A61B10/04—Endoscopic instruments
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/32—Surgical cutting instruments
- A61B17/320016—Endoscopic cutting instruments, e.g. arthroscopes, resectoscopes
Abstract
The invention discloses a detachable capsule endoscope, which comprises a capsule endoscope, wherein the capsule endoscope is connected with an external image host through a wireless transmission module; the flexible endoscope comprises an endoscope snake bone, a capsule mounting seat is connected to the front end of the endoscope snake bone, the rear end of the capsule endoscope is detachably assembled in the front end of the capsule mounting seat, a first instrument channel pipe penetrates through the capsule endoscope, and the rear end of the first instrument channel pipe is detachably connected with the front end of a second instrument channel pipe arranged in the endoscope snake bone. Compared with the prior art, the capsule endoscope combines the conventional endoscope and the capsule endoscope, after the examination of the stomach is finished, the capsule falls off from the snake bone end part of the endoscope and enters the intestinal tract of the human body, and the capsule is removed from the body after the examination of the intestinal tract of the human body is finished, so that the disposable examination of the stomach and the intestinal tract is realized; meanwhile, when the capsule endoscope is used for stomach examination, the functions of ordinary gastroscopes such as biopsy and polyp excision of the gastroscope can be realized through the first instrument channel tube of the capsule endoscope.
Description
Technical Field
The invention relates to the field of medical instruments, in particular to a detachable capsule endoscope.
Background
The endoscope is a detection instrument integrating traditional optics, ergonomics, precision machinery, modern electronics, mathematics and software, and has wide medical application. It can enter into body through small incision or natural cavity to see the pathological changes which can not be displayed by X-ray, and can cooperate with surgical instruments to carry out visual operation treatment in body. In-vivo clinical examination and visual surgery require a sharp-image endoscope to help doctors to improve the diagnosis accuracy, so electronic endoscopes are usually selected.
The endoscope has a precise and tiny structure, so that the endoscope can enter the human body through the natural orifice of the human body in the medical treatment process to be widely applied to detection and treatment. Such as a conventional endoscope, is commonly used when examining the stomach.
Capsule endoscopes have been developed rapidly in recent years as a new type of physical examination solution for the digestive tract. The capsule endoscope has incomparable advantages of the traditional intubation type endoscope, has the advantages of convenient examination, no wound pain, no influence on normal life of patients and the like, and has the tendency of gradually replacing the traditional intubation type enterogastroscope. Capsule endoscopes typically include a capsule housing, a capsule core disposed within the capsule housing. The capsule inner core is a core structure of the capsule endoscope and comprises but is not limited to a camera module, an illumination module, an image processing module, a magnet, a signal transmission module, a control module and other functional modules, and part of the functional modules are fixed on a PCB (printed Circuit Board). For example, in chinese patent application with the patent name of "capsule core and capsule endoscope", publication No. CN211093932U, adjacent PCB boards are connected by a connecting structure, and functional modules thereof are fixed to the PCB boards or the connecting structure, so that the capsule core forms an integral body, and then is fixed to the capsule shell. Capsule endoscopes are generally used to examine sites such as the intestinal tract where conventional endoscopes are not readily inserted.
In actual clinical practice, the examination of the stomach and the intestinal tract usually needs to be performed synchronously or sequentially, and if the conventional endoscope and the capsule endoscope are combined to examine the stomach and the intestinal tract sequentially and perform biopsy sampling simultaneously, convenience is brought to medical workers, and the pain of a patient can be relieved.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a detachable capsule endoscope.
In order to achieve the purpose, the invention is implemented according to the following technical scheme:
a detachable capsule endoscope comprises a capsule endoscope, wherein the capsule endoscope is connected with an image host outside a body through a wireless transmission module; the flexible endoscope comprises an endoscope snake bone, a capsule mounting seat is connected to the front end of the endoscope snake bone, the rear end of the capsule endoscope is detachably assembled in the front end of the capsule mounting seat, a first instrument channel pipe penetrates through the capsule endoscope along the length direction of the capsule endoscope, the rear end of the first instrument channel pipe is detachably connected with the front end of a second instrument channel pipe arranged in the endoscope snake bone, and the front end of the second instrument channel pipe is fixed in the capsule mounting seat.
Furthermore, the capsule mounting seat is a section of hard tube, the inner diameter of the hard tube is smaller than the outer diameter of the capsule endoscope, and the rear end part of the capsule endoscope is positioned in the front end of the hard tube; a sealing clapboard is fixed in the rear end of the capsule endoscope, and a first instrument channel tube penetrates through the sealing clapboard; a socket sleeve is vertically fixed on the rear end face of the sealing partition plate, a plug sleeve mounting seat is fixed in the front end of the hard tube, a plug sleeve is movably inserted in the front end of the plug sleeve mounting seat, a plug column body inserted into the socket sleeve is axially fixed at the front end of the plug sleeve, a plurality of elastic clamping jaws are circumferentially arranged at the front end of the plug sleeve, grooves corresponding to the elastic clamping jaws are formed in the outer wall of the socket sleeve, the front ends of the elastic clamping jaws are clamped into the grooves, and a through hole for the plug sleeve mounting seat to pass through is formed in the rear end of the capsule endoscope corresponding to the rear end of the socket sleeve; the rear end of the plug sleeve is connected with a steel wire, and the steel wire is arranged in the snake bone of the endoscope and extends out of the rear end of the snake bone of the endoscope.
Furthermore, the outer diameter of the front end of the second instrument channel tube is smaller than the inner diameter of the rear end of the first instrument channel tube, and the front end of the second instrument channel tube is used for being inserted into the rear end of the first instrument channel tube.
Furthermore, a mounting plate is fixed in the front end of the hard tube, and the plug sleeve mounting seat and the front end of the second instrument channel tube penetrate through and are fixed in the mounting plate.
Furthermore, the capsule endoscope comprises a capsule shell, a controller circuit board and a storage battery for supplying power to the controller circuit board are fixed in the capsule shell, and the wireless transmission module is connected with the controller circuit board; the controller circuit board is connected with a COMS camera module, the front end of a lens of the COMS camera module is provided with an objective lens through a right-angle prism, the objective lens is arranged at the front end of the capsule shell and coaxially arranged with the capsule shell, and LED lamps connected with the controller circuit board are fixed on the periphery of the objective lens.
Preferably, the wireless transmission module is a WiFi module.
Compared with the prior art, the capsule endoscope combines the conventional endoscope and the capsule endoscope, after the examination of the stomach is finished, the capsule falls off from the snake bone end part of the endoscope and enters the intestinal tract of the human body, and the capsule is removed from the body after the examination of the intestinal tract of the human body is finished, so that the disposable examination of the stomach and the intestinal tract is realized; meanwhile, when the capsule endoscope is used for stomach examination, the functions of ordinary gastroscopes such as biopsy and polyp excision of the gastroscope can be realized through the first instrument channel tube of the capsule endoscope.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
FIG. 2 is a schematic view of the capsule endoscope of the present invention.
Fig. 3 is a schematic structural view of the plug ferrule of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. The specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
As shown in fig. 1-3, a detachable capsule endoscope comprises a capsule endoscope 1, wherein the capsule endoscope 1 is connected with an external image host through a wireless transmission module; the flexible endoscope is characterized by further comprising an endoscope snake bone 2, the front end of the endoscope snake bone 2 is connected with a capsule installation seat 3, the rear end of the capsule endoscope 1 is detachably assembled in the front end of the capsule installation seat 3, a first instrument channel pipe 10 penetrates through the capsule endoscope 1 along the length direction of the capsule endoscope 1, the rear end of the first instrument channel pipe 10 is detachably connected with the front end of a second instrument channel pipe 5 arranged in the endoscope snake bone 2, the front end of the second instrument channel pipe 5 is fixed in the capsule installation seat 3, the outer diameter of the front end of the second instrument channel pipe 5 is smaller than the inner diameter of the rear end of the first instrument channel pipe 10, and the front end of the second instrument channel pipe 5 is used for being inserted into the rear end of the first instrument channel pipe 10.
Through the implementation of the embodiment, the combination of the conventional endoscope and the capsule endoscope can be realized, after the examination of the stomach is completed, the capsule falls off from the snake bone end part of the endoscope and enters the intestinal tract of the human body, and after the examination of the intestinal tract of the human body is completed, the capsule is discharged from the body, so that the disposable examination of the stomach and the intestinal tract is realized.
Specifically, as shown in fig. 1 and 3, the capsule mounting seat 3 is a section of hard tube, the inner diameter of the hard tube is smaller than the outer diameter of the capsule endoscope 1, the rear end part of the capsule endoscope 1 is positioned in the front end of the hard tube, and as can be seen from fig. 1, when the capsule endoscope 1 is mounted at the front end of the hard tube, the hard tube actually plays a supporting role; a sealing clapboard 8 is fixed in the rear end of the capsule endoscope 1, and a first instrument channel tube 10 penetrates through the sealing clapboard 8; a socket sleeve 9 is vertically fixed on the rear end face of the sealing clapboard 8, a mounting plate 4 is fixed in the front end of the hard tube, the plug sleeve mounting seat 6 and the front end of the second instrument channel tube 5 penetrate through the mounting plate 4 and are fixed in the mounting plate 4, a plug sleeve 7 is movably inserted in the front end of the plug sleeve mounting seat 6, a plug column 72 for being inserted into the socket sleeve 9 is axially fixed at the front end of the plug sleeve 7, a plurality of elastic claws 71 are circumferentially arranged at the front end of the plug sleeve 7, a groove 91 corresponding to the elastic claws 71 is arranged on the outer wall of the socket sleeve 9, the front end of the elastic claws 71 is clamped into the groove 91, it should be noted that the front end of the elastic claws 71 has a certain clamping force on the groove 91, namely, the capsule can not actively fall off when the capsule is used as a conventional endoscope for gastric examination, and the elastic claws 71 can be separated from the grooves 91 without difficulty when the steel wire 11 is pulled so as to separate the endoscope capsule from the hard tube; the rear end of the socket sleeve 9 corresponds to the rear end of the capsule endoscope 1 and is provided with a through hole for the installation seat of the plug sleeve 7 to pass through; the rear end of the plug sleeve 7 is connected with a steel wire 11, and the steel wire 11 is arranged in the endoscope snake bone 2 and extends out of the rear end of the endoscope snake bone 2.
In some embodiments, a terminal connected with an external power supply can be arranged in the plug cylinder 72 at the front end of the plug sleeve 7, and correspondingly, a connecting terminal is also arranged in the socket sleeve 9, when the capsule endoscope is used as a common endoscope, the capsule endoscope is powered by the external power supply, and when the capsule endoscope is detached, the capsule endoscope is powered by a self-contained storage battery, so that the electric energy of the self-contained storage battery of the capsule endoscope can be saved as much as possible.
As shown in fig. 3, the present embodiment exemplarily shows a schematic structural view of a capsule endoscope, which is mainly different from a conventional endoscope in that there is an additional first instrument channel tube 10, and can realize functions of a general gastroscope such as biopsy and polyp excision of the gastroscope. Specifically, the capsule endoscope 1 comprises a capsule shell 101, a controller circuit board 105 and a storage battery for supplying power to the controller circuit board 105 are fixed in the capsule shell 101, and a wireless transmission module (a WiFi module is adopted as the wireless transmission module, and is generally a high-power WiFi module so as to better perform data transmission with an image host outside a body) is connected with the controller circuit board 105; the controller circuit board 105 is connected with a COMS camera module 106, the lens front end of the COMS camera module 106 is provided with an objective lens 102 through a right-angle prism 103, the objective lens 102 is arranged at the front end of the capsule shell 101 and is coaxially arranged with the capsule shell 101, and LED lamps 104 connected with the controller circuit board 105 are fixed around the objective lens 102. In this embodiment, monocular or binocular imaging may be used, and as shown in fig. 2, two COMS camera modules 106 are provided, and two objective lenses 102 are correspondingly provided; the right-angle prism is arranged between the objective lens 102 and the COMS camera module 106, so that the spatial layout of the COMS camera module 106 is facilitated, and the flexibility of the layout of instrument channels is improved.
The detachable capsule endoscope of the embodiment combines a conventional endoscope and a capsule endoscope, can enable the capsule to fall off from the snake bone end part of the endoscope and enter the intestinal tract of a human body after the examination of the stomach is finished, and can be removed from the body after the examination of the intestinal tract of the human body is finished, so that the disposable examination of the stomach and the intestinal tract is realized; the specific working principle is as follows:
when the stomach is examined, the capsule endoscope is arranged at the front end of the capsule mounting seat, then the medical staff slowly insert the capsule endoscope and the snake bone of the endoscope into the stomach, the capsule endoscope is used for examining the stomach, and the image data collected by the COMS camera module 106 is transmitted to an external image host through WiFi; in addition, when biopsy sampling or polypectomy is required, this is achieved by the first instrument channel tube;
after the stomach has been examined, the angle of the snake bone of the endoscope is adjusted, then the steel wire is pulled to make the elastic claw 71 break away from the groove 91 to separate the endoscope capsule from the capsule mounting seat, the capsule endoscope can enter the intestinal tract by utilizing the peristalsis of the intestines and stomach, so that the examination of the intestinal tract is realized, and the image data collected by the COMS camera module 106 is transmitted to the external image host through WiFi.
The technical solution of the present invention is not limited to the limitations of the above specific embodiments, and all technical modifications made according to the technical solution of the present invention fall within the protection scope of the present invention.
Claims (6)
1. A detachable capsule endoscope comprises a capsule endoscope, wherein the capsule endoscope is connected with an image host outside a body through a wireless transmission module; the flexible endoscope is characterized by further comprising an endoscope snake bone, the front end of the endoscope snake bone is connected with a capsule mounting seat, the rear end of the capsule endoscope is detachably assembled in the front end of the capsule mounting seat, a first instrument channel pipe penetrates through the capsule endoscope along the length direction of the capsule endoscope, the rear end of the first instrument channel pipe is detachably connected with the front end of a second instrument channel pipe arranged in the endoscope snake bone, and the front end of the second instrument channel pipe is fixed in the capsule mounting seat.
2. A detachable capsule endoscope according to claim 1, wherein: the capsule mounting seat is a section of hard tube, the inner diameter of the hard tube is smaller than the outer diameter of the capsule endoscope, and the rear end part of the capsule endoscope is positioned in the front end of the hard tube; a sealing clapboard is fixed in the rear end of the capsule endoscope, and a first instrument channel tube penetrates through the sealing clapboard; a socket sleeve is vertically fixed on the rear end face of the sealing partition plate, a plug sleeve mounting seat is fixed in the front end of the hard tube, a plug sleeve is movably inserted in the front end of the plug sleeve mounting seat, a plug column body inserted into the socket sleeve is axially fixed at the front end of the plug sleeve, a plurality of elastic clamping jaws are circumferentially arranged at the front end of the plug sleeve, grooves corresponding to the elastic clamping jaws are formed in the outer wall of the socket sleeve, the front ends of the elastic clamping jaws are clamped into the grooves, and a through hole for the plug sleeve mounting seat to pass through is formed in the rear end of the capsule endoscope corresponding to the rear end of the socket sleeve; the rear end of the plug sleeve is connected with a steel wire, and the steel wire is arranged in the snake bone of the endoscope and extends out of the rear end of the snake bone of the endoscope.
3. A detachable capsule endoscope according to claim 1, wherein: the outer diameter of the front end of the second instrument channel tube is smaller than the inner diameter of the rear end of the first instrument channel tube, and the front end of the second instrument channel tube is used for being inserted into the rear end of the first instrument channel tube.
4. A detachable capsule endoscope according to claim 2, wherein: the mounting plate is fixed in the front end of the hard tube, and the plug sleeve mounting seat and the front end of the second instrument channel tube penetrate through the mounting plate and are fixed in the mounting plate.
5. A detachable capsule endoscope according to claim 1, wherein: the capsule endoscope comprises a capsule shell, a controller circuit board and a storage battery for supplying power to the controller circuit board are fixed in the capsule shell, and the wireless transmission module is connected with the controller circuit board; the controller circuit board is connected with a COMS camera module, the front end of a lens of the COMS camera module is provided with an objective lens through a right-angle prism, the objective lens is arranged at the front end of the capsule shell and coaxially arranged with the capsule shell, and LED lamps connected with the controller circuit board are fixed on the periphery of the objective lens.
6. A sloughable capsule endoscope according to claim 5, characterized in that: the wireless transmission module is a WiFi module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210029568.0A CN114145694A (en) | 2022-01-12 | 2022-01-12 | Formula capsule endoscope can break away |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210029568.0A CN114145694A (en) | 2022-01-12 | 2022-01-12 | Formula capsule endoscope can break away |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114145694A true CN114145694A (en) | 2022-03-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210029568.0A Pending CN114145694A (en) | 2022-01-12 | 2022-01-12 | Formula capsule endoscope can break away |
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| CN (1) | CN114145694A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115187591A (en) * | 2022-09-08 | 2022-10-14 | 深圳市资福医疗技术有限公司 | Focus detection method, system, equipment and storage medium |
| CN116636804A (en) * | 2023-07-27 | 2023-08-25 | 珠海维尔康生物科技有限公司 | Primary and secondary mirror system behind cervical vertebra |
-
2022
- 2022-01-12 CN CN202210029568.0A patent/CN114145694A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115187591A (en) * | 2022-09-08 | 2022-10-14 | 深圳市资福医疗技术有限公司 | Focus detection method, system, equipment and storage medium |
| CN116636804A (en) * | 2023-07-27 | 2023-08-25 | 珠海维尔康生物科技有限公司 | Primary and secondary mirror system behind cervical vertebra |
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Address after: Room 1713-1, No. 23 Youth Square, Jiangyin City, Wuxi City, Jiangsu Province, 214400 Applicant after: Tianyu (Wuxi) Equipment Technology Co.,Ltd. Address before: 454003 Room 102, building 10, science and Technology Park, Henan University of technology, No. 1365, Zhongyuan Road, Jiaozuo demonstration area, Henan Province Applicant before: JIAOZUO TIANYU PRECISION OPTICS CO.,LTD. |