CN216091606U - Device for simply monitoring ventricular drainage height and CVP (CVP) - Google Patents
Device for simply monitoring ventricular drainage height and CVP (CVP) Download PDFInfo
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- CN216091606U CN216091606U CN202121552978.0U CN202121552978U CN216091606U CN 216091606 U CN216091606 U CN 216091606U CN 202121552978 U CN202121552978 U CN 202121552978U CN 216091606 U CN216091606 U CN 216091606U
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 70
- 230000002861 ventricular Effects 0.000 title claims abstract description 33
- 238000007917 intracranial administration Methods 0.000 claims abstract description 26
- 239000007788 liquid Substances 0.000 claims description 21
- 238000001802 infusion Methods 0.000 claims description 16
- 229920001296 polysiloxane Polymers 0.000 claims description 13
- 239000003086 colorant Substances 0.000 claims description 5
- 210000000613 ear canal Anatomy 0.000 claims description 5
- 230000005611 electricity Effects 0.000 claims description 5
- 239000002504 physiological saline solution Substances 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 210000004556 brain Anatomy 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 238000011369 optimal treatment Methods 0.000 abstract description 4
- 238000009616 inductively coupled plasma Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 210000001175 cerebrospinal fluid Anatomy 0.000 description 3
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- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 230000001678 irradiating effect Effects 0.000 description 2
- 210000003140 lateral ventricle Anatomy 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 210000003625 skull Anatomy 0.000 description 2
- 238000011282 treatment Methods 0.000 description 2
- 208000028399 Critical Illness Diseases 0.000 description 1
- 208000010496 Heart Arrest Diseases 0.000 description 1
- 208000032843 Hemorrhage Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000005013 brain tissue Anatomy 0.000 description 1
- 230000003727 cerebral blood flow Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
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- 210000004731 jugular vein Anatomy 0.000 description 1
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- 210000001321 subclavian vein Anatomy 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
The utility model discloses a device for simply monitoring ventricular external drainage height and CVP (CVP), which comprises a device body, wherein the device body comprises a supporting frame, a first monitoring mechanism and a second monitoring mechanism, the first monitoring mechanism and the second monitoring mechanism are slidably mounted on the supporting frame, the first monitoring mechanism and the second monitoring mechanism are respectively used for monitoring the ventricular external drainage height and central venous pressure of a patient, the first monitoring mechanism comprises a first pressure gauge and a first warning component, the first pressure gauge is used for monitoring intracranial pressure of the patient, corresponding warning is carried out through the first warning component according to data in different ranges measured by the first pressure gauge, medical personnel can be timely warned to adjust the ventricular external drainage height of the patient, the missing of the optimal treatment period is avoided, the second monitoring mechanism is identical in structure with the first monitoring mechanism, and the principle of monitoring the central venous pressure is identical.
Description
Technical Field
The utility model relates to the technical field of medical instruments, in particular to a device for simply monitoring ventricular external drainage height and CVP (composite video protocol).
Background
ICP is intracranial pressure which is brain tissue, cerebrospinal fluid and cerebral blood flow, the pressure of the sum of the volumes of the three substances to the wall of a cranial cavity is generated, the ventricular drainage is suitable for patients with hemorrhage in the ventricles, the intracranial pressure is reduced by puncturing and drainage for serious ICP increase caused by hydrocephalus and the like, the height of a drainage bottle is very strict during drainage, the drainage bottle is usually hung in front of a bed and needs to be 10cm-15cm higher than the ventricles, the ICP is increased due to difficulty in draining the cerebrospinal fluid caused by overhigh position, the intracranial pressure is too low due to too fast cerebrospinal fluid loss caused by too low position, the height of the drainage bottle outside the ventricles is adjusted by monitoring the ICP of the patients, the data within 10cm of a manometer water column is too low range, the 10cm-20cm is a safety range, and the data exceeding 20cm is a data too high range.
CVP is central venous pressure, a catheter is usually inserted into the upper and lower vena cava of the right atrium, saline water columns in the catheter cavity enter a pressure meter for data monitoring, the water column 0cm-4cm of the pressure meter is in a data low range, 4cm-12cm of the pressure meter is in a safety range, and more than 12cm of the pressure meter is in a high range. The ventricular drainage height and CVP monitoring play a crucial role in the diagnosis and treatment of diseases of critically ill patients with NICU.
The existing method for monitoring the ventricular drainage height and CVP of a patient still adopts the most original method, two persons are usually needed, the height of drainage and the height of a manometer are adjusted by aligning a ruler to a corresponding position, errors exist in the test, scales of a water column in the manometer are difficult to observe, early warning cannot be timely carried out, and the optimal treatment time is delayed.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a simple device for monitoring the ventricular drainage height and CVP (composite cardiac arrest pattern), which can monitor the ventricular drainage height and CVP of a patient at the same time, monitor and warn data in different ranges when measuring ICP (inductively coupled plasma) and CVP of the patient, and adjust the drainage height in time so as to avoid delaying the optimal treatment time.
In order to achieve the purpose, the utility model provides the following technical scheme: a device for simply monitoring the ventricular drainage height and CVP comprises a device body, wherein the device body comprises a supporting frame, a first monitoring mechanism and a second monitoring mechanism which are slidably arranged on the supporting frame, the first monitoring mechanism and the second monitoring mechanism are respectively used for monitoring the ventricular external drainage height and the central venous pressure of the patient, the first monitoring mechanism includes a first manometer for monitoring intracranial pressure of the patient and a first warning component, the first warning component is used for carrying out corresponding warning according to the data in different ranges measured by the first pressure gauge, the second monitoring mechanism comprises a second load cell and a second warning component which have the same structure as the first monitoring mechanism, the second pressure measuring meter is used for monitoring the central venous pressure of the patient, and the second warning assembly is used for carrying out corresponding warning according to data in different ranges measured by the second pressure measuring meter.
Preferably, first manometer includes pressure-measuring pipe and cavity, the pressure-measuring pipe is linked together with inserting intracranial silicone tube for monitor intracranial pressure, first warning subassembly includes pressure sensing subassembly and singlechip, pressure sensing subassembly fixed mounting be in the inner wall of pressure-measuring pipe for the hydraulic pressure of detecting intraductal liquid column, the cavity sets up with the pressure-measuring pipe independently, the singlechip is installed in the cavity, just pressure sensing subassembly with the output electricity of singlechip is connected, the singlechip is given with the hydraulic signal transmission in the pressure-measuring pipe to the pressure sensing subassembly.
Preferably, the pressure sensing assembly comprises a first pressure sensor, a second pressure sensor and a third pressure sensor, the first pressure sensor is arranged at the position of 0cm of the pressure measuring pipe, the second pressure sensor is arranged at the position of 10cm, the third pressure sensor is arranged at the position of 20cm, when the height of a liquid column in the hydraulic pipe is within the range of 0cm-10cm, the first pressure sensor sends out a signal, when the height of the liquid column in the hydraulic pipe is within the range of 10cm-20cm, the second pressure sensor sends out a signal, and when the height of the liquid column is above 20cm, the third pressure sensor sends out a signal.
Preferably, first warning subassembly still includes the different colour warning lights of at least three groups, warning light fixed mounting is in on the first manometer, the warning light with the output electricity of singlechip is connected, and is used for right the sensing signal of pressure sensing subassembly in different scope carries out the light of different colours and shows, and the warning light includes first warning light, second warning light and third warning light, and when first sensor signals, first warning light shows orange lamp, and when second sensor signals, the second warning light shows green lamp, and when the third sensor signals, the third warning light sends red lamp.
Preferably, an infusion bottle is hung on the supporting frame, physiological saline is filled in the infusion bottle, an exhaust hole is formed in the infusion bottle, the infusion bottle is communicated with the pressure measuring pipe, when intracranial pressure is measured, the exhaust hole is opened, and the physiological saline in the infusion bottle is completely discharged into the pressure measuring pipe and is communicated with the intracranial silicone tube; when the central venous pressure is measured, the normal saline is also completely emptied, and when the central venous pressure is not measured, the infusion bottle can play a role in continuous infusion.
Preferably, a drainage bag is further hung on the supporting frame and communicated with a silicone tube inserted into the cranium, and the drainage bag is used for leading out redundant liquid in the cranium.
Preferably, the first monitoring mechanism further comprises a lifting sleeve, the lifting sleeve is fixedly connected with the supporting frame, the lifting sleeve comprises a bolt, a through hole is formed in the lifting sleeve, the through hole is internally provided with threads matched with the bolt, the threads are connected with the bolt in a threaded manner, the first pressure gauge is fixed on the lifting sleeve, the lifting sleeve is used for adjusting the height of the first pressure gauge, and the lifting sleeve can clamp or release the fixing rod by rotating the bolt, so that the position of the fixing rod can be adjusted.
Preferably, an infrared lamp is further fixed on the first manometer, the infrared lamp is arranged on the same horizontal line of the zero scale of the first manometer and used for irradiating the horizontal plane of the external auditory canal for zero point adjustment, and the first manometer is fixed at the zero point height.
Preferably, universal wheels are installed at the bottom of the supporting frame, so that the device can be conveniently moved to any position.
Compared with the prior art, the utility model has the beneficial effects that:
according to the utility model, the pressure sensing assembly is arranged in the pressure measuring tube, so that the detected hydraulic signal of the liquid column in the tube can be sent to the single chip microcomputer, different light colors can be displayed according to the hydraulic signals in different ranges sent by the single chip microcomputer by arranging the warning lamps with different colors, the intracranial pressure and central venous pressure data of a patient can be warned in time, the ventricular drainage height can be adjusted in time, and the optimal treatment time can be avoided from missing.
The utility model can monitor the ventricular drainage height and CVP simultaneously, the zero point is calibrated by the infrared lamp to improve the accuracy, and a medical staff can operate the device and move to any position conveniently, thus playing a vital role in disease diagnosis and treatment of NICU critical patients.
Drawings
FIG. 1 is a schematic structural diagram of a device for monitoring ventricular drainage height and CVP according to the present invention;
FIG. 2 is a schematic structural diagram of a first manometer of a device for easily monitoring ventricular drainage height and CVP according to the present invention;
FIG. 3 is a top view of a first manometer of an apparatus for simplified monitoring of ventricular drainage height and CVP according to the present invention;
FIG. 4 is a top view of a lifting sleeve of a device for easily monitoring the ventricular drainage height and CVP of the present invention;
in the figure: 1. a support frame; 2. a first monitoring mechanism; 21. a first pressure gauge; 211. a piezometric tube; 212. a chamber; 22. a first warning assembly; 221. a pressure sensing assembly; 2211. a first pressure sensor; 2212. a second pressure sensor; 2213. a third pressure sensor; 222. a single chip microcomputer; 223. a warning light; 2231. a first warning light; 2232. a second warning light; 2233. a third warning light; 3. An infusion bottle; 31. an exhaust port; 4. a drainage bag; 5. a tee joint; 6. a lifting sleeve; 61. a bolt; 7. a second monitoring mechanism; 71. a second pressure gauge; 72. a second warning assembly; 8. an infrared lamp; 9. a universal wheel.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The following is a further detailed description of a first embodiment of the device for easily monitoring the ventricular drainage level and CVP of the present invention:
as shown in fig. 1, a device for simply monitoring the ventricular drainage height and CVP comprises a device body, the device body comprises a supporting frame 1, and a first monitoring mechanism 2 and a second monitoring mechanism 7 slidably mounted on the supporting frame 1, the first monitoring mechanism 2 and the second monitoring mechanism 7 are respectively used for monitoring the ventricular drainage height and the central venous pressure of a patient, the first monitoring mechanism 2 comprises a first pressure gauge 21 and a first warning component 22, the first pressure gauge 21 is used for monitoring the intracranial pressure of the patient, the first warning component 22 is used for performing corresponding warning according to data in different ranges measured by the first pressure gauge 21, the second monitoring mechanism 7 comprises a second pressure gauge 71 and a second warning component 72 which have the same structure as the first monitoring mechanism 2, the second pressure gauge 71 is used for monitoring the central venous pressure of the patient, the second warning assembly 72 is used for correspondingly warning any position where the universal wheel 9 can move the device is installed at the bottom of the supporting frame 1 according to the data in different ranges measured by the second load cell 71.
Specifically, as shown in fig. 1, 2 and 3, a skull hole is drilled at a position 1cm in front of a coronary seam or 13cm behind the eyebrow, 2.5cm beside the midline, a silicone tube with a porous head end is inserted into a lateral ventricle, the first pressure gauge 21 comprises a pressure measuring tube 211 and a chamber 212, the pressure measuring tube 211, the silicone tube inserted into the cranium, an infusion bottle 3 and a drainage bag 4 are connected through a tee joint 5, when the 0 scale of the first pressure gauge 21 is adjusted to be on the same plane with the horizontal plane of an external auditory canal, the tee joint 5 is rotated to close one end of the silicone tube and the drainage bag 4, then all the physiological saline in the transfusion bottle is discharged into the pressure measuring tube 211, the liquid level in the pressure measuring tube 211 is higher than the actual intracranial pressure of the patient, an exhaust port 31 of the infusion bottle 3 is kept open, one end of the silicone tube is opened by continuing to rotate the tee joint 5, the liquid level in the pressure measuring tube 211 rapidly drops until the liquid level is stable, and the liquid column height of the pressure measuring tube 211 is the intracranial pressure of the patient, the warning assembly comprises a pressure sensing assembly 221 and a single chip microcomputer 222, the pressure sensing assembly 221 is fixedly installed on the inner wall of the pressure measuring pipe 211 and used for detecting the hydraulic pressure of a liquid column in the pipe, the chamber 212 and the pressure measuring pipe 211 are independently arranged, the single chip microcomputer 222 is installed in the chamber 212, the pressure sensing assembly 221 is electrically connected with the output end of the single chip microcomputer 222, and the pressure sensing assembly 221 sends a hydraulic signal in the pressure measuring pipe 211 to the single chip microcomputer 222.
As shown in fig. 1 and 2, the pressure sensing assembly 221 includes a first pressure sensor 2211, a second pressure sensor 2212 and a third pressure sensor 2213, the first pressure sensor 2211 is disposed at 10cm of the pressure measuring tube 21, the second pressure sensor 2212 is disposed at 10cm, the third pressure sensor 2213 is disposed at 20cm, when the height of the liquid column in the hydraulic pipe is within the range of 0cm-10cm, the first sensor sends a signal to the singlechip 222, which indicates that the intracranial pressure is too low and the ventricular drainage height needs to be increased, when the height of the liquid column in the hydraulic pipe is within the range of 10cm-20cm, the second sensor sends a signal to the singlechip 222, which indicates that the intracranial pressure data is normal, when the height of the liquid column is above 20cm, the third sensor sends a signal to the single chip microcomputer 222, which indicates that the intracranial pressure is too high and the ventricular external drainage height needs to be adjusted down.
Preferably, as shown in fig. 2, the warning assembly further includes at least three different color warning lights 223, warning light 223 fixed mounting is in on the first manometer 21, warning light 223 with the output electricity of singlechip 222 is connected, it is right to be used for pressure sensing assembly 221 carries out the light display of different colors at the sensing signal of different within ranges, warning light 223 includes first warning light 2231, second warning light 2232 and third warning light 2233, when first sensor signals, first warning light 2231 shows the orange lamp, suggestion intracranial pressure is low, when second sensor signals, second warning light 2232 shows the green lamp, suggestion intracranial pressure is normal, when third sensor signals, third warning light 2233 sends the red lamp, suggestion intracranial pressure is too high.
A second embodiment of the device for easily monitoring the ventricular drainage level and CVP of the present invention is described in further detail below:
as shown in fig. 1 and 4, the first monitoring mechanism 2 further includes a lifting sleeve 6, the lifting sleeve 6 is fixedly connected to the supporting frame 1, the lifting sleeve 6 includes a bolt 61, a through hole is formed in the lifting sleeve 6, a thread matched with the bolt 61 is arranged in the through hole, the thread is in threaded connection with the bolt 61, the first pressure gauge 21 is fixed on the lifting sleeve 6, the lifting sleeve 6 is used for adjusting the height of the first pressure gauge 21, and the bolt 61 can be rotated to clamp or release the fixing rod by the lifting sleeve 6, so as to adjust the position on the fixing rod.
As shown in fig. 1, an infrared lamp 8 is further fixed on the first pressure gauge 21, the infrared lamp 8 is arranged on the same horizontal line of the zero scale of the first pressure gauge 21 and is used for irradiating the horizontal plane of the external auditory canal to perform zero point adjustment, the first pressure gauge 21 is fixed at the zero point height, and the universal wheel 9 is installed at the bottom of the supporting frame 1, so that the device can be conveniently moved to any position.
The working principle is as follows:
drilling a skull hole at a position 1cm before or 13cm behind a coronary seam, and 2.5cm beside a midline, inserting a silicone tube with a plurality of holes at the head end into a lateral ventricle, wherein the first manometer 21 comprises a manometer tube 211 and a chamber 212, the manometer tube 211, the silicone tube inserted into the cranium, the infusion bottle 3 and the drainage bag 4 are connected through a tee joint 5, opening an infrared lamp 8 to irradiate the horizontal plane of an external auditory canal for zero point adjustment, rotating the tee joint 5 to close one end of the silicone tube and the drainage bag 4, then discharging all the physiological saline of the transfusion bottle into the manometer tube 211, wherein the liquid level in the manometer tube 211 is higher than the actual intracranial pressure of a patient, an exhaust port 31 of the infusion bottle 3 is kept open, then continuing to rotate the tee joint 5 to open one end of the silicone tube, the liquid level in the manometer tube 211 rapidly drops until the liquid level is stable, the liquid column height of the manometer tube 211 is the intracranial pressure of the patient, and the first pressure sensor 2211, the pressure sensor, Second pressure sensor 2212 and third pressure sensor 2213 send the hydraulic signal of different scope liquid columns for singlechip 222, singlechip 222 is with signal transmission for three warning light 223 of group again, first warning light 2231 shows the orange lamp, the suggestion intracranial pressure is low excessively, need increase the outdoor drainage height of brain, second warning light 2232 shows the green lamp, the suggestion intracranial pressure is normal, third warning light 2233 sends the red lamp, the suggestion intracranial pressure is too high, indicate that the drainage bottle position is on the high side, need reduce the outdoor drainage height of brain this moment until first warning light 1223 shows green light.
The patient is punctured by a needle tube through the subclavian vein or the right internal jugular vein, the height of the second manometer 71 is adjusted by the same method so that the infrared lamp 8 is aligned to the target point position on the horizontal plane of the 4 th intercostal space of the axillary midline of the horizontal position to be zero, then the central venous pressure data of the patient is monitored by the same method, and the working principle of the second warning component 72 with the same structure as that of the first warning component 22 is not repeated.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (8)
1. The utility model provides a device of simple and easy control brain outdoor drainage height and CVP, includes the device body, its characterized in that: the device body includes braced frame (1) and slidable mounting first monitoring mechanism (2) and second monitoring mechanism (7) on braced frame (1), first monitoring mechanism (2) with second monitoring mechanism (7) are used for respectively monitoring patient's ventricular external drainage height and central venous pressure, first monitoring mechanism (2) include first manometer (21) and first warning subassembly (22), first manometer (21) are used for monitoring patient's intracranial pressure, first warning subassembly (22) are used for the basis different within range data that first manometer (21) measured carry out corresponding warning, second monitoring mechanism (7) with first monitoring mechanism (2) structure is the same.
2. The device for easy monitoring of ventricular drainage height and CVP of claim 1, wherein: first manometer (21) include pressure-measuring pipe (211) and cavity (212), pressure-measuring pipe (211) are linked together with inserting intracranial silicone tube, first warning subassembly (22) are including pressure sensing subassembly (221) and singlechip (222), pressure sensing subassembly (221) fixed mounting be in the inner wall of pressure-measuring pipe (211) for the hydraulic pressure of liquid column in the detection tube, cavity (212) and pressure-measuring pipe (211) set up independently, singlechip (222) are installed in cavity (212), just pressure sensing subassembly (221) with the output electricity of singlechip (222) is connected.
3. The device for easy monitoring of ventricular drainage height and CVP of claim 2, wherein: the pressure sensing assembly (221) includes a first pressure sensor (2211), a second pressure sensor (2212), and a third pressure sensor (2213), the first pressure sensor (2211) is disposed at 0cm of the pressure measuring tube (211), the second pressure sensor (2212) is disposed at 10cm, and the third pressure sensor (2213) is disposed at 20 cm.
4. The device for easy monitoring of ventricular drainage height and CVP of claim 2, wherein: first warning subassembly (22) still include at least three different colour warning lights (223) of group, warning light (223) fixed mounting be in on first manometer (21), warning light (223) with the output electricity of singlechip (222) is connected, is used for right the sensing signal of pressure sensing subassembly (221) in different scopes carries out the light display of different colours.
5. The device for easy monitoring of ventricular drainage height and CVP of claim 2, wherein: an infusion bottle (3) is hung on the supporting frame (1), physiological saline is filled in the infusion bottle (3), an exhaust hole is formed in the infusion bottle (3), and the infusion bottle (3) is communicated with the pressure measuring pipe (211).
6. The device for easy monitoring of ventricular drainage height and CVP of claim 1, wherein: and a drainage bag (4) is also hung on the supporting frame, and the drainage bag (4) is communicated with a silicone tube inserted into the cranium and used for leading out the redundant liquid in the cranium.
7. The device for easy monitoring of ventricular drainage height and CVP of claim 1, wherein: first monitoring mechanism (2) still include lift cover (6), lift cover (6) with braced frame (1) fixed connection, lift cover (6) include bolt (61), the through-hole has been seted up on lift cover (6), the through-hole inside be equipped with bolt (61) assorted screw thread, the screw thread with bolt (61) threaded connection, first manometer (21) are fixed on lift cover (6), lift cover (6) are used for carrying out altitude mixture control to first manometer (21).
8. The device for easy monitoring of ventricular drainage height and CVP of claim 1, wherein: still be fixed with infrared lamp (8) on first manometer (21), infrared lamp (8) set up on the same water flat line of first manometer (21) zero scale for shine the external auditory canal horizontal plane and carry out zero point and adjust.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121552978.0U CN216091606U (en) | 2021-07-08 | 2021-07-08 | Device for simply monitoring ventricular drainage height and CVP (CVP) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121552978.0U CN216091606U (en) | 2021-07-08 | 2021-07-08 | Device for simply monitoring ventricular drainage height and CVP (CVP) |
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| Publication Number | Publication Date |
|---|---|
| CN216091606U true CN216091606U (en) | 2022-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121552978.0U Expired - Fee Related CN216091606U (en) | 2021-07-08 | 2021-07-08 | Device for simply monitoring ventricular drainage height and CVP (CVP) |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216091606U (en) |
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2021
- 2021-07-08 CN CN202121552978.0U patent/CN216091606U/en not_active Expired - Fee Related
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