CN219307650U - Breathing machine gas circuit device and breathing machine - Google Patents
Breathing machine gas circuit device and breathing machine Download PDFInfo
- Publication number
- CN219307650U CN219307650U CN202223509106.3U CN202223509106U CN219307650U CN 219307650 U CN219307650 U CN 219307650U CN 202223509106 U CN202223509106 U CN 202223509106U CN 219307650 U CN219307650 U CN 219307650U
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- 230000029058 respiratory gaseous exchange Effects 0.000 title claims abstract description 32
- 239000001301 oxygen Substances 0.000 claims abstract description 130
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 130
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 121
- 238000009434 installation Methods 0.000 claims abstract description 13
- 239000000203 mixture Substances 0.000 claims abstract description 7
- 230000000903 blocking effect Effects 0.000 claims description 20
- 238000007789 sealing Methods 0.000 claims description 11
- 229920000742 Cotton Polymers 0.000 claims description 8
- 238000013016 damping Methods 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims description 6
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims description 4
- 229910001882 dioxygen Inorganic materials 0.000 claims description 4
- 239000007789 gas Substances 0.000 abstract description 9
- 230000010354 integration Effects 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 3
- 210000004072 lung Anatomy 0.000 description 3
- 239000003814 drug Substances 0.000 description 2
- 230000030279 gene silencing Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000241 respiratory effect Effects 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 206010002091 Anaesthesia Diseases 0.000 description 1
- 206010003497 Asphyxia Diseases 0.000 description 1
- 206010003694 Atrophy Diseases 0.000 description 1
- 208000004756 Respiratory Insufficiency Diseases 0.000 description 1
- 230000037005 anaesthesia Effects 0.000 description 1
- 230000037444 atrophy Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006213 oxygenation reaction Methods 0.000 description 1
- 201000004193 respiratory failure Diseases 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The utility model belongs to the technical field of medical appliances, and particularly relates to a breathing machine gas circuit device and a breathing machine. The air channel device of the breathing machine comprises a bottom plate, an oxygen interface, an air compressor assembly, a first installation block provided with an oxygen channel and a second installation block provided with an air channel, wherein the air compressor assembly comprises a shell provided with an inner space and an air compressor arranged in the inner space, and the air compressor divides the inner space into an upper space and a lower space; the shell is also provided with an air inlet communicated with the upper space, an oxygen inlet and an air-oxygen mixture outlet which are both communicated with the lower space; the oxygen interface, the air interface, the first mounting block, the second mounting block and the shell are all mounted on the bottom plate; the oxygen interface is communicated with an inlet of an oxygen channel, and an outlet of the oxygen channel is communicated with an oxygen inlet; the air inlet is communicated with the air channel inlet, and the air channel outlet is communicated with the air inlet. In the utility model, the air circuit device of the breathing machine has high integration level, small volume and simple installation.
Description
Technical Field
The utility model belongs to the technical field of medical appliances, and particularly relates to a breathing machine gas circuit device and a breathing machine.
Background
In modern clinical medicine, a ventilator is used as an effective means capable of artificially replacing, controlling or changing the autonomous ventilation function, and is widely used in respiratory failure caused by various reasons, anesthesia respiratory management during major surgery, respiratory support treatment and emergency resuscitation, and has a very important position in the field of modern medicine.
The air channel module is an important component in the breathing machine, and can mix the oxygen channel with the air channel and output the mixed air. In the prior art, the air circuit module is generally formed by several components, and the components are connected through pipelines. However, such a gas path module composed of a plurality of individual components has problems such as complicated assembly operation and large space occupation.
Disclosure of Invention
Aiming at the technical problems of complex assembly operation and large occupied space of a gas circuit module in the prior art, the utility model provides a gas circuit device of a breathing machine and the breathing machine.
In view of the above technical problems, an embodiment of the present utility model provides a breathing machine air path device, including a base plate, an oxygen interface, an air compressor assembly, a first installation block provided with an oxygen channel, and a second installation block provided with an air channel, where the air compressor assembly includes a housing provided with an inner space and an air compressor installed in the inner space, and the air compressor divides the inner space into an upper space and a lower space; the shell is also provided with an air inlet communicated with the upper space, an oxygen inlet and an air-oxygen mixture outlet which are both communicated with the lower space;
the oxygen interface, the air interface, the first mounting block, the second mounting block and the housing are all mounted on the base plate; the oxygen interface is communicated with an inlet of the oxygen gas channel, and an outlet of the oxygen gas channel is communicated with the oxygen inlet; the air inlet is communicated with the inlet of the air channel, and the outlet of the air channel is communicated with the air inlet.
Optionally, the air path device of the breathing machine further comprises an oxygen pressure relief valve, an oxygen pressure relief valve and an oxygen proportion regulating valve; the first mounting block is further provided with a first mounting port, a second mounting port and a third mounting port which are communicated with the oxygen channel, the oxygen pressure relief valve is mounted in the first mounting port, the oxygen pressure relief valve is mounted in the second mounting port, and the oxygen proportion regulating valve is mounted in the third mounting port.
Optionally, the ventilator gas circuit device further comprises an oxygen flow sensor installed on the bottom plate, and an outlet of the oxygen channel is communicated with the oxygen inlet through the oxygen flow sensor.
Optionally, the ventilator air path device further comprises a safety valve and an emergency inhalation valve, the second mounting block is further provided with a fourth mounting port and a fifth mounting port which are all communicated with the air channel, the safety valve is mounted in the fourth mounting port, and the emergency inhalation valve is mounted in the fifth mounting port.
Optionally, the emergency suction valve comprises a sealing plate and a blocking piece, wherein the blocking piece comprises a blocking plate and a sliding rod connected with the blocking plate; the sealing plate is mounted on the second mounting block and seals the fifth mounting port; the sealing plate is provided with a guide hole and a plurality of air holes which are arranged around the guide hole, the guide hole and the air holes are communicated with the air channel, the sliding rod is slidably arranged in the guide hole, the blocking plate is positioned in the air channel, and the blocking plate is used for opening or blocking the air holes.
Optionally, the ventilator air path device further comprises an air flow sensor, and the outlet of the air path is communicated with the air inlet through the air flow sensor.
Optionally, the ventilator circuit device further comprises a PEEP valve mounted on the base plate.
Optionally, the air compressor assembly further comprises a flexible pad, and the housing is mounted on the bottom plate through the flexible pad.
Optionally, the air compressor assembly further includes a first noise damping cotton installed in the upper space and a second noise damping cotton installed in the lower space.
The utility model further provides a breathing machine, which comprises a host machine and the breathing machine air circuit device, wherein the breathing machine air circuit device is arranged in the host machine.
In the utility model, external air flows into the upper space through the air interface, the air channel and the air inlet, the air compressor sucks air in the upper space and compresses the air and inputs the air into the lower space, oxygen of an external oxygen bottle and the like is communicated with the oxygen interface, and oxygen flows into the lower space through the oxygen interface, the oxygen channel and the oxygen interface; and the oxygen and the air are fully mixed in the lower space and then output through the air-oxygen mixture outlet.
In the utility model, the oxygen interface, the air interface, the first mounting block, the second mounting block and the air compressor assembly are integrated on the bottom plate, and the air-oxygen mixing chamber (namely, the lower space) is integrated on the shell, so that the volume of the air channel device of the breathing machine is reduced, the integration level of the air channel device of the breathing machine is improved, and the air channel device of the breathing machine is conveniently mounted.
Drawings
The utility model will be further described with reference to the drawings and examples.
FIG. 1 is a schematic diagram of a ventilator circuit assembly according to one embodiment of the present utility model;
FIG. 2 is a schematic diagram of an oxygen relief valve, an oxygen relief valve and an oxygen ratio control valve according to an embodiment of the present utility model mounted on a first mounting block;
FIG. 3 is a schematic view showing a structure in which a safety valve and an emergency suction valve according to an embodiment of the present utility model are mounted on a second mounting block;
fig. 4 is a schematic structural diagram of an air compressor assembly of a ventilator air circuit device according to an embodiment of the present utility model;
fig. 5 is a cross-sectional view of an air compressor assembly of a ventilator circuit device according to an embodiment of the present utility model.
Reference numerals in the specification are as follows:
1. a bottom plate; 2. an oxygen interface; 3. an air interface; 4. an air compressor assembly; 41. a housing; 411. a top space; 412. a lower space; 413. an air inlet; 414. an oxygen inlet; 415. an air-oxygen mixed gas outlet; 42. an air compressor; 43. a flexible pad; 5. a first mounting block; 51. an oxygen passage; 6. a second mounting block; 61. an air channel; 7. an oxygen pressure relief valve; 8. an oxygen pressure reducing valve; 9. an oxygen ratio regulating valve; 101. an oxygen flow sensor; 102. a safety valve; 103. an emergency suction valve; 1031. a sealing plate; 1032. a blocking member; 104. an air flow sensor; 105. PEEP valve.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects solved by the utility model more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
It is to be understood that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "front", "rear", "middle", etc., are based on the directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the utility model.
As shown in fig. 1, 4 and 5, an air path device of a breathing machine according to an embodiment of the present utility model includes a base plate 1, an oxygen port 2, an air port 3, an air compressor assembly 4, a first mounting block 5 provided with an oxygen channel 51, and a second mounting block 6 provided with an air channel 61, wherein the air compressor assembly 4 includes a housing 41 provided with an inner space and an air compressor 42 installed in the inner space, and the air compressor 42 divides the inner space into an upper space 411 and a lower space 412; the shell 41 is also provided with an air inlet 413 communicated with the upper space 411, an oxygen inlet 414 and an air-oxygen mixture outlet 415 which are both communicated with the lower space 412; it will be appreciated that the air compressor 42 is installed at the middle of the inner space, the air inlet of the air compressor 42 is located in the upper space 411, and the air outlet of the air compressor 42 is located in the lower space 412.
The oxygen interface 2, the air interface 3, the first mounting block 5, the second mounting block 6 and the housing 41 are all mounted on the base plate 1; the oxygen interface 2 is communicated with the inlet of the oxygen channel 51, and the outlet of the oxygen channel 51 is communicated with the oxygen inlet 414; the air inlet 413 communicates with the inlet of the air passage 61, and the outlet of the air passage 61 communicates with the air inlet 413. It will be appreciated that the oxygen port 2 and the air port 3 are provided at the front end of the base plate 1, and the air compressor assembly 4 is provided at the rear end of the base plate 1.
Specifically, the external air flows into the upper space 411 through the air port 3, the air channel 61 and the air inlet 413, the air compressor 42 sucks the air in the upper space 411, compresses the air and inputs the compressed air into the lower space 412, oxygen of an external oxygen bottle or the like is communicated with the oxygen port 2, and the oxygen flows into the lower space 412 through the oxygen port 2, the oxygen channel 51 and the oxygen port 2; oxygen and air are sufficiently mixed in the lower space 412 and then output through the air-oxygen mixture outlet 415.
In the utility model, the oxygen interface 2, the air interface 3, the first mounting block 5, the second mounting block 6 and the air compressor assembly 4 are integrated on the bottom plate 1, and the air-oxygen mixing chamber (i.e. the lower space 412) is integrated on the housing 41, so that the volume of the air passage device of the breathing machine is reduced, the integration level of the air passage device of the breathing machine is improved, and the installation of the air passage device of the breathing machine is facilitated.
In one embodiment, as shown in fig. 1 and 2, the ventilator circuit device further includes an oxygen pressure relief valve 7, an oxygen pressure relief valve 8, and an oxygen ratio regulating valve 9; the first mounting block 5 is further provided with a first mounting port, a second mounting port and a third mounting port which are all communicated with the oxygen channel 51, the oxygen pressure relief valve 7 is mounted in the first mounting port, the oxygen pressure relief valve 8 is mounted in the second mounting port, and the oxygen proportion regulating valve 9 is mounted in the third mounting port. It is understood that the oxygen relief valve 7, the oxygen relief valve 8 and the oxygen ratio adjusting valve 9 are all well known components to those skilled in the art, and will not be described herein.
Specifically, when the oxygen pressure in the oxygen channel 51 is greater than the first preset oxygen pressure, the oxygen pressure relief valve 7 is opened, and the oxygen in the oxygen channel 51 is relieved by the oxygen pressure relief valve 7, so that the safety of the air channel device of the breathing machine is ensured. When it is detected that the oxygen in the oxygen passage 51 is greater than a second preset oxygen pressure, the oxygen pressure reducing valve 8 is operated so that the oxygen value in the oxygen passage 51 is adjusted to be within a proper range; wherein the first preset oxygen pressure is greater than the second preset oxygen pressure. The oxygen ratio control valve 9 may be used to regulate the flow of oxygen in the oxygen passage 51. In this embodiment, the first mounting block 5 is provided with an oxygen pressure relief valve 7, an oxygen pressure relief valve 8 and an oxygen proportion adjusting valve 9, so that the integration level of the air path device of the respirator is further improved.
In one embodiment, as shown in fig. 1, the ventilator circuit device further includes an oxygen flow sensor 101 mounted on the base plate 1, and the outlet of the oxygen channel 51 is connected to the oxygen inlet 414 through the oxygen flow sensor 101. It is understood that the oxygen flow sensor 101 is a well-known component for those skilled in the art, and will not be described in detail herein. In this embodiment, the oxygen flow sensor 101 may detect the flow rate of the oxygen flowing out of the oxygen channel 51 in real time, and adjust the flow rate of the oxygen flowing out of the air channel 61 to be within a proper range through the oxygen ratio adjusting valve 9.
In an embodiment, as shown in fig. 1 and 3, the ventilator circuit device further includes a safety valve 102 and an emergency inhalation valve 103, a fourth installation port and a fifth installation port which are all communicated with the air channel 61 are further provided on the second installation block 6, the safety valve 102 is installed in the fourth installation port, and the emergency inhalation valve 103 is installed in the fifth installation port. It will be appreciated that the safety valve 102 includes, but is not limited to, a pressure relief valve, etc., and when the air pressure value in the air passage 61 is greater than a preset air pressure value, the safety valve 102 is opened and the air in the air passage 61 is subjected to pressure relief treatment, so that the safety of the ventilator air path device is ensured. When the front end of the air channel 61 is plugged, the breathing end of the patient sucks the air channel 61 into negative pressure, the air channel 61 in the negative pressure state enables the emergency inhalation valve 103 to be opened, and therefore external air can enter the air channel 61 through the emergency inhalation valve 103, and suffocation accidents of the patient are avoided. In this embodiment, the second mounting block 6 is integrated with a safety valve 102 and an emergency inhalation valve 103, so as to further improve the integration level of the air path device of the respirator.
In one embodiment, as shown in fig. 3, the emergency suction valve 103 includes a sealing plate 1031 and a blocking member 1032, and the blocking member 1032 includes a blocking plate and a sliding rod connected to the blocking plate; the sealing plate 1031 is mounted on the second mounting block 6 and seals the fifth mounting port; the sealing plate 1031 is provided with a guide hole and a plurality of air holes arranged around the guide hole, the guide hole and the air holes are both communicated with the air channel 61, the sliding rod is slidably installed in the guide hole, the blocking plate is located in the air channel 61, and the blocking plate is used for opening or blocking the air holes. It is understood that the closure plate and the slide bar are an integrally formed structural member.
Specifically, when external air is input into the oxygen channel 51 through the air interface 3, the air in the air channel 61 drives the blocking plate to be attached to the sealing plate 1031 to block the air holes, so that the air in the air channel 61 cannot leak out through the air holes; when the inlet front end of the air channel 61 is blocked, the negative pressure is formed in the air channel 61 by the inhalation of the patient, and the blocking plate is far away from the sealing plate 1031 to open the air hole, so that the external space enters the air channel 61 through the air hole. In the embodiment, the emergency suction valve has a simple structure and low manufacturing cost.
In one embodiment, as shown in fig. 1, the ventilator circuit device further includes an air flow sensor 104, and the outlet of the air channel 61 is connected to the air inlet 413 through the air flow sensor 104. It will be appreciated that the air flow sensor 104 may detect the air flow out of the air duct 61 in real time.
In one embodiment, as shown in fig. 1, the ventilator circuit device further comprises a PEEP (Positive End-expiratory pressure) valve 105 mounted on the base plate 1. It will be appreciated that the exhaled air from the patient does not enter the ventilator directly, but rather passes through the PEEP valve 105, the PEEP valve 105 has been pre-set to a pressure appropriate for the patient-and thus enters the external device, so that the exhalation process of the patient is blocked, the lung pressure does not drop to 1 atm at the end of the exhalation, but a certain amount of functional gas remains in the alveoli, so that the lungs are kept at a certain pressure, thus preventing alveolar atrophy, improving lung compliance, improving ventilation status, and increasing oxygenation time.
In an embodiment, as shown in fig. 1 and 4, the air compressor assembly 4 further includes a flexible pad 43, and the housing 41 is mounted on the base plate 1 through the flexible pad 43. It can be appreciated that, in the working process of the air compressor 42, the air compressor 42 will drive the housing 41 to vibrate, and the design of the flexible pad 43 can reduce the vibration amount transmitted from the housing 41 to the bottom plate 1, thereby improving the user experience of the air path device of the breathing machine.
In one embodiment, the air compressor assembly 4 further includes a first noise damping cotton (not shown) installed in the upper space 411 and a second noise damping cotton (not shown) installed in the lower space 412. It can be appreciated that, because the power of the air compressor 42 is larger, the first silencing cotton can reduce the noise generated at the air suction end of the air compressor 42, and the second silencing cotton can reduce the noise generated at the output end of the air compressor 42, so that the user experience of the air path device of the respirator is improved.
The utility model further provides a breathing machine, which comprises a host machine and the breathing machine air circuit device, wherein the breathing machine air circuit device is arranged in the host machine.
The above embodiments of the ventilator circuit device and the ventilator of the present utility model are merely examples, and are not intended to limit the present utility model, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present utility model and the action principle are included in the protection scope of the present utility model.
Claims (9)
1. The air channel device of the breathing machine is characterized by comprising a bottom plate, an oxygen interface, an air compressor assembly, a first installation block provided with an oxygen channel and a second installation block provided with an air channel, wherein the air compressor assembly comprises a shell provided with an inner space and an air compressor arranged in the inner space, and the air compressor divides the inner space into an upper space and a lower space; the shell is also provided with an air inlet communicated with the upper space, an oxygen inlet and an air-oxygen mixture outlet which are both communicated with the lower space;
the oxygen interface, the air interface, the first mounting block, the second mounting block and the housing are all mounted on the base plate; the oxygen interface is communicated with an inlet of the oxygen gas channel, and an outlet of the oxygen gas channel is communicated with the oxygen inlet; the air inlet is communicated with the inlet of the air channel, and the outlet of the air channel is communicated with the air inlet.
2. The ventilator circuit assembly of claim 1, further comprising an oxygen relief valve, and an oxygen ratio control valve; the first mounting block is further provided with a first mounting port, a second mounting port and a third mounting port which are communicated with the oxygen channel, the oxygen pressure relief valve is mounted in the first mounting port, the oxygen pressure relief valve is mounted in the second mounting port, and the oxygen proportion regulating valve is mounted in the third mounting port.
3. The ventilator circuit assembly of claim 1, further comprising an oxygen flow sensor mounted to the base plate, wherein the outlet of the oxygen airway communicates with the oxygen inlet through the oxygen flow sensor.
4. The ventilator circuit assembly of claim 1, further comprising a safety valve and an emergency inhalation valve, wherein the second mounting block is further provided with a fourth mounting port and a fifth mounting port each communicating with the air passage, the safety valve is mounted in the fourth mounting port, and the emergency inhalation valve is mounted in the fifth mounting port.
5. The ventilator circuit assembly of claim 4, wherein the emergency inhalation valve comprises a closure plate and a closure member, the closure member comprising a closure plate and a slide bar connected to the closure plate; the sealing plate is mounted on the second mounting block and seals the fifth mounting port; the sealing plate is provided with a guide hole and a plurality of air holes which are arranged around the guide hole, the guide hole and the air holes are communicated with the air channel, the sliding rod is slidably arranged in the guide hole, the blocking plate is positioned in the air channel, and the blocking plate is used for opening or blocking the air holes.
6. The ventilator circuit assembly of claim 1, further comprising an air flow sensor, wherein the outlet of the air passage communicates with the air inlet via the air flow sensor.
7. The ventilator circuit assembly of claim 1, wherein the air compressor assembly further comprises a flexible pad, the housing being mounted to the base plate by the flexible pad.
8. The ventilator circuit assembly of claim 1, wherein the air compressor assembly further comprises a first sound damping cotton mounted in the upper space and a second sound damping cotton mounted in the lower space.
9. A ventilator comprising a main unit and a ventilator circuit assembly as claimed in any of claims 1 to 8, the ventilator circuit assembly being mounted within the main unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223509106.3U CN219307650U (en) | 2022-12-27 | 2022-12-27 | Breathing machine gas circuit device and breathing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223509106.3U CN219307650U (en) | 2022-12-27 | 2022-12-27 | Breathing machine gas circuit device and breathing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219307650U true CN219307650U (en) | 2023-07-07 |
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ID=87028224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223509106.3U Active CN219307650U (en) | 2022-12-27 | 2022-12-27 | Breathing machine gas circuit device and breathing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219307650U (en) |
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2022
- 2022-12-27 CN CN202223509106.3U patent/CN219307650U/en active Active
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Address after: 518000, Building 1, 101, Evergrande Fashion Huigu Building, Fulong Road, Shanghenglang Community, Dalang Street, Longhua District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Security Medical Technology Co.,Ltd. Country or region after: China Address before: A1302, Shenzhen national engineering laboratory building, No.20, Gaoxin South 7th Road, high tech Zone community, Yuehai street, Nanshan District, Shenzhen, Guangdong 518000 Patentee before: Shenzhen Security Medical Technology Co.,Ltd. Country or region before: China |