CN105305022B - The anticorrosion implantable medical diagnostic equipment - Google Patents
The anticorrosion implantable medical diagnostic equipment Download PDFInfo
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- CN105305022B CN105305022B CN201510638226.9A CN201510638226A CN105305022B CN 105305022 B CN105305022 B CN 105305022B CN 201510638226 A CN201510638226 A CN 201510638226A CN 105305022 B CN105305022 B CN 105305022B
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- 238000004891 communication Methods 0.000 claims abstract description 27
- 230000005855 radiation Effects 0.000 claims description 49
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 claims description 3
- 238000005260 corrosion Methods 0.000 claims description 3
- 238000002955 isolation Methods 0.000 abstract description 13
- 238000012827 research and development Methods 0.000 abstract description 3
- 230000035807 sensation Effects 0.000 abstract description 3
- 238000012360 testing method Methods 0.000 description 10
- 101150006573 PAN1 gene Proteins 0.000 description 7
- 238000013461 design Methods 0.000 description 4
- 238000003745 diagnosis Methods 0.000 description 3
- 238000002513 implantation Methods 0.000 description 3
- 238000004088 simulation Methods 0.000 description 2
- 230000001194 anti-hemostatic effect Effects 0.000 description 1
- 230000036772 blood pressure Effects 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 230000000747 cardiac effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000013401 experimental design Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000010247 heart contraction Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 210000005036 nerve Anatomy 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
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Abstract
The invention discloses a kind of anticorrosion implantable medical diagnostic equipment, include implanted electron medical treatment unit, also include plate-like drain pan, in described drain pan, be provided with the receiving chamber for accommodating implanted electron medical treatment unit；Also include the division board being covered in drain pan opening；Described division board is provided with the plate-like mesochite for placing antenna；Also include the lid shell of shell opener in covering；It is provided with in described mesochite for allowing the communication antenna of implanted electron medical treatment unit communication with the outside world；It is rational in infrastructure, to human body without sensation of pricking, internal structure is arranged rationally, it is disposed within antenna frequencies wide ranges, isolation is preferable, gain is high；Providing for the research and development of implantable medical diagnostor and preferably install module, each company has only to the implanted electron medical treatment unit of oneself is designed to insert the shape of this drain pan and thickness or size, just can realize preferable communication quality.
Description
Technical field
The present invention relates to a kind of anticorrosion implantable medical diagnostic equipment.
Background technology
At present, implantation medical equipment kind is a lot, such as Implanted cardiac pacemaker, brain pacemaker, nerve stimulator, muscle stimulator, electrocardiorecorder etc., the diagnostor being implanted in human body also occurs now, heart beating, pulsation, blood pressure or other information for real-time diagnosis patient, the same with other implantation medical equipments, it still needs to communicate with the external world, could information be spread out of in real time.Current diagnosis device is typically by the little device box of unique design and the implanted electron medical treatment unit be located in device box；Adding for allowing implanted electron medical treatment unit and extraneous antenna composition, implanted electron medical treatment unit typically contains testing circuit, detector, battery etc..But, all there is certain problem in implantable medical diagnostor, including battery life, material etc., but one problem of maximum of which is exactly the quality of communication quality, owing to its space size of the implantable medical diagnostic equipment is limited, antenna the most disposed within all has that frequency range is narrow, isolation is poor, the shortcoming such as at the bottom of gain, and this drastically influence communication quality and the most also drastically influence quality of diagnosis.Therefore, the implantable medical device designing its built-in aerial a and having bigger isolation and wider band limits is to need problem in the urgent need to address badly；It addition, also need to solution is the structure structure of implantable medical diagnostor, device can effectively reduce the sensation of pricking to health, again can be rational in infrastructure.
Summary of the invention
It is an object of the invention to overcome disadvantages described above, it is provided that a kind of anticorrosion implantable medical diagnostic equipment.
For achieving the above object, the concrete scheme of the present invention is as follows: a kind of anticorrosion implantable medical diagnostic equipment, includes implanted electron medical treatment unit, also includes plate-like drain pan, is provided with the receiving chamber for accommodating implanted electron medical treatment unit in described drain pan；Also include the division board being covered in drain pan opening；Described division board is provided with the plate-like mesochite for placing antenna；Also include the lid shell of shell opener in covering；It is provided with in described mesochite for allowing the communication antenna of implanted electron medical treatment unit communication with the outside world.
Wherein, the top of described lid shell is arc surface.
Wherein, described communication antenna includes one by the regular hexagon housing being sequentially connected with to head and the tail outside the 6th outside first；Described communication antenna also includes a regular hexagon inside casing being sequentially connected with by the first inner edge to the 6th inner edge head and the tail；
Also including three identical oscillator unit, described oscillator unit includes the first support arm and the second support arm；Described first support arm extends to the second support arm lopsidedness the first oblique arm, and described second support arm extends to the first support arm lopsidedness the second oblique arm；Described first oblique arm and the second oblique arm are identical with horizontal plane angle, and length is identical；It is provided with the first radiating element between described first support arm and the second support arm；It is provided with the second radiating element between described first oblique arm and the second oblique arm；
Described first radiating element includes one end and is connected to the first transverse arm of the first support arm, and the free end of described first transverse arm extends obliquely the first support arm, and described first support arm is extended with multiple the first parallel radiation arm obliquely；Also including one end and be connected to the second transverse arm of the second support arm, the free end of described second transverse arm extends obliquely the second support arm, and described second support arm is extended with multiple corresponding with the first radiation arm and that be arranged in parallel the second radiation arm obliquely；
Described second radiating element includes one end and is connected to the 3rd transverse arm of the first oblique arm, and the free end of described 3rd transverse arm is provided with threeth support arm vertical with the 3rd transverse arm, and described 3rd support arm has extended vertically a plurality of 3rd radiation arm to the second oblique arm side；Also including one end and be connected to the 4th transverse arm of the second oblique arm, the free end of described 4th transverse arm is provided with fourth support arm vertical with the 4th transverse arm, and described 4th support arm has extended vertically a plurality of 4th radiation arm to the first oblique arm side；Described 3rd radiation arm and the 4th radiation arm are arranged in a crossed manner；
First support arm of described three oscillator unit is connected with the first inner edge, the 3rd inner edge, the 5th inner edge respectively, and the second support arm of described three oscillator unit is connected with outside first, outside the 3rd, outside the 5th respectively；
Described division board is orthohexagonal metallic plate, and described division board is provided with multiple hexagonal through hole.
Wherein, the quantity of described first radiation arm and the second radiation arm is identical；If the quantity of described first radiation arm is N；The quantity of described 3rd radiation arm and the 4th radiation arm is identical；If the quantity of the 3rd radiation arm is M；Described N=M*3+1；Described hexagon number of openings is M*6.
Wherein, the width of described first support arm and the second support arm is identical.
Wherein, the multiple clearance holes being located on the 3rd support arm and the 4th support arm are also included；Described clearance hole diameter is less than 1mm.
Wherein, the quantity of described clearance hole is four.Wherein, the 3rd radiation arm is identical to the distance of the 3rd support arm with the 4th radiation arm to the distance of the 4th support arm.Wherein, the bottom surface of described drain pan and the end face of lid shell are equipped with the binding groove for both being tightened together；Wherein, the outer surface of described drain pan and lid shell is all coated with food-grade corrosion-resistant coating；Wherein, described drain pan opening is provided with O-ring seal, and the opening of described mesochite also is provided with O-ring seal.
The invention have the benefit that it is rational in infrastructure, to human body without sensation of pricking, internal structure is arranged rationally, it is disposed within antenna frequencies wide ranges, isolation is preferable, gain is high；Providing for the research and development of implantable medical diagnostor and preferably install module, each company has only to the implanted electron medical treatment unit of oneself is designed to insert the shape of this drain pan and thickness or size, just can realize preferable communication quality.
Accompanying drawing explanation
Fig. 1 is that the present invention skims the sectional view of antenna part；
Fig. 2 is the top view of the communication antenna of the present invention；
Fig. 3 is the top view of the division board of the present invention；
Fig. 4 is the structural representation of the oscillator unit of the present invention；
Fig. 5 is the frequency range emulation testing figure that communication antenna and the division board of the present invention does not conforms to timing；
Fig. 6 is the communication antenna frequency range emulation testing figure with division board conjunction timing of the present invention；
Fig. 7 is the directional diagram of the communication antenna of the present invention；
Description of reference numerals in Fig. 1 to Fig. 7:
1-drain pan；2-division board；21-through hole；3-mesochite；4-O-ring seal；5-lid shell；6-bundlees groove；
Outside 71-first；81-the first inner edge；
911-the first support arm；912-the second support arm；
921-the first oblique arm；922-the second oblique arm；931-the first transverse arm；932-the second transverse arm；933-the 3rd transverse arm；934-the 4th transverse arm；941-the first support arm；942-the second support arm；943-the 3rd support arm；944-the 4th support arm；951-the first radiation arm；952-the second radiation arm；953-the 3rd radiation arm；954-the 4th radiation arm.
Detailed description of the invention
The present invention is further detailed explanation with specific embodiment below in conjunction with the accompanying drawings, is not that the practical range of the present invention is confined to this.
Embodiment 1.
As shown in Figures 1 to 7, a kind of anticorrosion implantable medical diagnostic equipment described in the present embodiment, include implanted electron medical treatment unit, also include plate-like drain pan 1, in described drain pan 1, be provided with the receiving chamber for accommodating implanted electron medical treatment unit；Also include the division board 2 being covered in drain pan 1 opening；Described division board 2 is provided with the plate-like mesochite 3 for placing antenna；Also include the lid shell 5 for covering mesochite 3 opening；It is provided with in described mesochite 3 for allowing the communication antenna of implanted electron medical treatment unit communication with the outside world.The present invention is that the research and development of implantable medical diagnostor provide and preferably install module, and each company has only to the implanted electron medical treatment unit of oneself is designed to insert the shape of this drain pan 1 and thickness or size, just can realize preferable communication quality.A kind of anticorrosion implantable medical diagnostic equipment described in the present embodiment, the top of described lid shell 5 is arc surface.It can effectively prevent from stabbing or twinge patient, alleviates the implantation pain of patient.
A kind of anticorrosion implantable medical diagnostic equipment described in the present embodiment, described communication antenna includes a regular hexagon housing being sequentially connected with by head and the tail outside the outside first the 71 to the 6th；Described communication antenna also includes a regular hexagon inside casing being sequentially connected with by the first inner edge 81 to the 6th inner edge head and the tail；Also including three identical oscillator unit, described oscillator unit includes the first support arm 911 and the second support arm 912；Described first support arm 911 extends to the second support arm 912 lopsidedness the first oblique arm 921, and described second support arm 912 extends to the first support arm 911 lopsidedness the second oblique arm 922；Described first oblique arm 921 is identical with horizontal plane angle with the second oblique arm 922, and length is identical；It is provided with the first radiating element between described first support arm 911 and the second support arm 912；It is provided with the second radiating element between described first oblique arm 921 and the second oblique arm 922；Described first radiating element includes one end and is connected to the first transverse arm 931 of the first support arm 911, the free end of described first transverse arm 931 extends obliquely the first support arm 941, and described first support arm 941 is extended with multiple the first parallel radiation arm 951 obliquely；Also include one end and be connected to the second transverse arm 932 of the second support arm 912, the free end of described second transverse arm 932 extends obliquely the second support arm 942, and described second support arm 942 is extended with multiple corresponding with the first radiation arm 951 and that be arranged in parallel the second radiation arm 952 obliquely；Described second radiating element includes one end and is connected to the 3rd transverse arm 933 of the first oblique arm 921, the free end of described 3rd transverse arm 933 is provided with threeth support arm 943 vertical with the 3rd transverse arm 933, and described 3rd support arm 943 has extended vertically a plurality of 3rd radiation arm 953 to the second oblique arm 922 side；Also include one end and be connected to the 4th transverse arm 934 of the second oblique arm 922, the free end of described 4th transverse arm 934 is provided with fourth support arm 944 vertical with the 4th transverse arm 934, and described 4th support arm 944 has extended vertically a plurality of 4th radiation arm 954 to the first oblique arm 921 side；Described 3rd radiation arm 953 is arranged in a crossed manner with the 4th radiation arm 954；First support arm 911 of described three oscillator unit is connected with the first inner edge the 81, the 3rd inner edge, the 5th inner edge respectively, and the second support arm 912 of described three oscillator unit is connected with outside the outside first the 71, the 3rd, outside the 5th respectively；Described division board 2 is orthohexagonal metallic plate, and described division board 2 is provided with multiple hexagonal through hole 21.
Designed by the microstrip circuit structure not less than 500 times, and by being not less than under 500 l-G simulation tests and parameter adjustment, finally determine above-mentioned antenna structure and matched division board 2 structure, this antenna possesses wider frequency range and preferable isolation and directivity and gain performance with division board 2 when coordinating, comply fully with use requirement, improve the communication performance of implantable medical device.
Especially when removing this structural insulated panel 2 or placing common metal division board 2, such as Fig. 5, this beamwidth of antenna available frequency range is still up to 1.8GHz to 2.8GHz；Substantially meeting the requirement of communications band, its gain is the highest, and in frequency band, average gain is more than 9.0dBi；Meet actually used needs.The design of this shape division board 2 is also to be drawn by emulation and continuous EXPERIMENTAL DESIGN, wherein, screw stereo antenna is included when this division board 2 being placed other prior art antennas and coordinating, its matching is the highest, and isolation performance strengthens inconspicuous, when testing ordinary antennas, this division board 2 in cooperation, average gain increases 0.01-0.15dBi or does not increases, and isolation performance is constant, and frequency range is without changing.And the emulation before reality test with test is appreciated that, test when the communication antenna in this programme coordinates with the division board 2 of this programme, the bandwidth of the communication antenna of this programme, isolation, gain aspect all exceed Antenna Design when being not added with division board 2, the simulation value such as Fig. 6 after wherein coordinating.This integrated antenna system bandwidth available frequency range has reached 1.5GHz to 3.0GHz；Its gain the most substantially increases, and in frequency band, average gain is more than 9.5dBi, compares rising 0.5dBi；If additionally isolation in its isolation figure frequency band, isolation performance preferably, such as Fig. 6, can be seen that in S3 isolation is more than 25.5dB in frequency range.Its directivity, as described in Figure 7, it is omni-directional antenna.
Embodiment 2.
The present embodiment is to set concrete parameter attribute with the difference of a kind of anticorrosion implantable medical diagnostic equipment described in above-described embodiment, for reaching optimum performance and most stable of performance, following parameter is set: described first radiation arm 951 is identical with the quantity of the second radiation arm 952；If the quantity of described first radiation arm 951 is N；Described 3rd radiation arm 953 is identical with the quantity of the 4th radiation arm 954；If the quantity of the 3rd radiation arm 953 is M；Described N=M*3+1；Described hexagon through hole 21 quantity is M*6.Above-mentioned parameter draws in constantly test and adjustment, and it is the most stable design parameter optimal with performance, and concrete actual test is tied HFSS15 computed in software and drawn, this total system beamwidth of antenna available frequency range is at 1.5GHz to 3.0GHz internal frequency modulation；In frequency band, average gain is more than 9.5dBi, and impedance reduces；In frequency range, isolation is more than 26dB；Find in reality is tested, the change of external environment, as temperature, magnetic field impact change within the specific limits, such as temperature amplitude of variation about 10 degree, use above-mentioned parameter and during special value, very by force, frequency range conservation degree is preferable for its stability.
A kind of anticorrosion implantable medical diagnostic equipment described in the present embodiment, described first support arm 911 is identical with the width of the second support arm 912.A kind of anticorrosion implantable medical diagnostic equipment described in the present embodiment, also includes the multiple clearance holes being located on the 3rd support arm 943 and the 4th support arm 944；Described clearance hole diameter is less than 1mm.A kind of anticorrosion implantable medical diagnostic equipment described in the present embodiment, the quantity of described clearance hole is four.A kind of anticorrosion implantable medical diagnostic equipment described in the present embodiment, the 3rd radiation arm 953 is identical to the distance of the 3rd support arm 943 with the 4th radiation arm 954 to the distance of the 4th support arm 944.
A kind of anticorrosion implantable medical diagnostic equipment described in the present embodiment, the bottom surface of described drain pan 1 and the end face of lid shell 5 are equipped with the binding groove 6 for both being tightened together；A kind of anticorrosion implantable medical diagnostic equipment described in the present embodiment, the outer surface of described drain pan 1 and lid shell 5 is all coated with food-grade corrosion-resistant coating；For anticorrosion, improve the service life of the present invention.A kind of anticorrosion implantable medical diagnostic equipment described in the present embodiment, described drain pan 1 opening is provided with O-ring seal 4, the opening of described mesochite 3 also is provided with O-ring seal 4.Phase anti-Hemostatic Oral Liquid or tissue fluid enter in body of wall, and device is caused damage.
The above is only several preferred embodiments of the present invention, therefore all equivalence changes done according to structure, feature and the principle described in present patent application scope or modification, it is included in the protection domain of present patent application.
Claims (6)
1. an anticorrosion implantable medical diagnostic equipment, includes implanted electron medical treatment unit, it is characterised in that: also include plate-like drain pan (1), in described drain pan (1), be provided with the receiving chamber for accommodating implanted electron medical treatment unit；Also include the division board (2) being covered in drain pan (1) opening；Described division board (2) is provided with the plate-like mesochite (3) for placing antenna；Also include the lid shell (5) for covering mesochite (3) opening；It is provided with in described mesochite (3) for allowing the communication antenna of implanted electron medical treatment unit communication with the outside world；
The outer surface of described drain pan (1) and lid shell (5) is all coated with food-grade corrosion-resistant coating；
Described drain pan (1) opening is provided with O-ring seal (4), and the opening of described mesochite (3) also is provided with O-ring seal (4)；
The top of described lid shell (5) is arc surface；
Described communication antenna includes a regular hexagon housing being sequentially connected with by head and the tail outside (71) outside first to the 6th；Described communication antenna also includes a regular hexagon inside casing being sequentially connected with by the first inner edge (81) to the 6th inner edge head and the tail；
Also including three identical oscillator unit, described oscillator unit includes the first support arm (911) and the second support arm (912)；Described first support arm (911) is extended to the second support arm (912) lopsidedness the first oblique arm (921), and described second support arm (912) is extended to the first support arm (911) lopsidedness the second oblique arm (922)；Described first oblique arm (921) is identical with horizontal plane angle with the second oblique arm (922), and length is identical；It is provided with the first radiating element between described first support arm (911) and the second support arm (912)；It is provided with the second radiating element between described first oblique arm (921) and the second oblique arm (922)；
Described first radiating element includes one end and is connected to first transverse arm (931) of the first support arm (911), the free end of described first transverse arm (931) extends obliquely the first support arm (941), and described first support arm (941) is extended with multiple parallel the first radiation arm (951) obliquely；Also include one end and be connected to second transverse arm (932) of the second support arm (912), the free end of described second transverse arm (932) extends obliquely the second support arm (942), and described second support arm (942) is extended with multiple corresponding with the first radiation arm (951) and that be arranged in parallel the second radiation arm (952) obliquely；
Described second radiating element includes one end and is connected to the 3rd transverse arm (933) of the first oblique arm (921), the free end of described 3rd transverse arm (933) is provided with threeth support arm (943) vertical with the 3rd transverse arm (933), and described 3rd support arm (943) has extended vertically a plurality of 3rd radiation arm (953) to the second oblique arm (922) side；Also include one end and be connected to the 4th transverse arm (934) of the second oblique arm (922), the free end of described 4th transverse arm (934) is provided with fourth support arm (944) vertical with the 4th transverse arm (934), and described 4th support arm (944) has extended vertically a plurality of 4th radiation arm (954) to the first oblique arm (921) side；Described 3rd radiation arm (953) is arranged in a crossed manner with the 4th radiation arm (954)；
First support arm (911) of described three oscillator unit is connected with the first inner edge (81), the 3rd inner edge, the 5th inner edge respectively, second support arm (912) of described three oscillator unit respectively with (71) outside first, be connected outside the 3rd, outside the 5th；
Described division board (2) is orthohexagonal metallic plate, and described division board (2) is provided with multiple hexagonal through hole (21).
A kind of anticorrosion implantable medical diagnostic equipment the most according to claim 1, it is characterised in that: described first radiation arm (951) is identical with the quantity of the second radiation arm (952)；If the quantity of described first radiation arm (951) is N；Described 3rd radiation arm (953) is identical with the quantity of the 4th radiation arm (954)；If the quantity of the 3rd radiation arm (953) is M；Described N=M*3+1；Described hexagon through hole (21) quantity is M*6.
A kind of anticorrosion implantable medical diagnostic equipment the most according to claim 1, it is characterised in that: described first support arm (911) is identical with the width of the second support arm (912).
A kind of anticorrosion implantable medical diagnostic equipment the most according to claim 1, it is characterised in that: also include the multiple clearance holes being located on the 3rd support arm (943) and the 4th support arm (944)；Described clearance hole diameter is less than 1mm.
A kind of anticorrosion implantable medical diagnostic equipment the most according to claim 3, it is characterised in that: the quantity of described clearance hole is four.
A kind of anticorrosion implantable medical diagnostic equipment the most according to claim 1, it is characterised in that: the 3rd radiation arm (953) is identical to the distance of the 3rd support arm (943) with the 4th radiation arm (954) to the distance of the 4th support arm (944).
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| CN201510638226.9A CN105305022B (en) | 2015-10-02 | 2015-10-02 | The anticorrosion implantable medical diagnostic equipment |
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| CN201510638226.9A CN105305022B (en) | 2015-10-02 | 2015-10-02 | The anticorrosion implantable medical diagnostic equipment |
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| CN105305022B true CN105305022B (en) | 2016-12-07 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101959448A (en) * | 2008-02-28 | 2011-01-26 | 劳梅迪奇股份公司 | Patient data sensor device |
| CN103298522A (en) * | 2010-11-23 | 2013-09-11 | 心脏起搏器公司 | Folded antennas for implantable medical devices |
| CN104511091A (en) * | 2013-09-26 | 2015-04-15 | 奥迪康医疗有限公司 | A device implantable under skin |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9240630B2 (en) * | 2011-04-29 | 2016-01-19 | Cyberonics, Inc. | Antenna shield for an implantable medical device |
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- 2015-10-02 CN CN201510638226.9A patent/CN105305022B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101959448A (en) * | 2008-02-28 | 2011-01-26 | 劳梅迪奇股份公司 | Patient data sensor device |
| CN103298522A (en) * | 2010-11-23 | 2013-09-11 | 心脏起搏器公司 | Folded antennas for implantable medical devices |
| CN104511091A (en) * | 2013-09-26 | 2015-04-15 | 奥迪康医疗有限公司 | A device implantable under skin |
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Inventor after: Zeng Shanghuai Inventor before: Xie Guangpeng |
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Effective date of registration: 20161024 Address after: 401320 Chongqing District of Banan City Jinzhu Industrial Park Applicant after: Chongqing Jiewei Mold Manufacturing Co.,Ltd. Address before: Tianhe District Tong East Road Guangzhou city Guangdong province 510665 B-101 No. 5, room B-118 Applicant before: GUANGDONG GAOHANG INTELLECTUAL PROPERTY OPERATION Co.,Ltd. Effective date of registration: 20161024 Address after: Tianhe District Tong East Road Guangzhou city Guangdong province 510665 B-101 No. 5, room B-118 Applicant after: GUANGDONG GAOHANG INTELLECTUAL PROPERTY OPERATION Co.,Ltd. Address before: 523000 E District, Tian An Digital City, Nancheng District, Guangdong, Dongguan Applicant before: Xie Guangpeng |
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