CN219982927U - Sampling device - Google Patents
Sampling device Download PDFInfo
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- CN219982927U CN219982927U CN202321140051.5U CN202321140051U CN219982927U CN 219982927 U CN219982927 U CN 219982927U CN 202321140051 U CN202321140051 U CN 202321140051U CN 219982927 U CN219982927 U CN 219982927U
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- module
- sampling
- sampling tube
- pressure sensor
- control module
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- 238000005070 sampling Methods 0.000 title claims abstract description 232
- 238000001514 detection method Methods 0.000 claims abstract description 44
- 238000012544 monitoring process Methods 0.000 claims abstract description 39
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 33
- 238000001179 sorption measurement Methods 0.000 claims abstract description 32
- 230000000903 blocking effect Effects 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 4
- 238000005259 measurement Methods 0.000 claims description 17
- 230000005494 condensation Effects 0.000 description 10
- 238000009833 condensation Methods 0.000 description 10
- 239000007788 liquid Substances 0.000 description 9
- 230000002035 prolonged effect Effects 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000011358 absorbing material Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 230000002427 irreversible 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
- 239000004065 semiconductor Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Sampling And Sample Adjustment (AREA)
Abstract
The utility model relates to the technical field of medical equipment, and provides a sampling device, which comprises: the device comprises a sampling tube, an adsorption module, a detection assembly and a control module, wherein an outlet of the sampling tube is connected with the detection assembly, the adsorption module is arranged in the sampling tube and is used for adsorbing water vapor in the sampling tube, and the detection assembly is used for monitoring the blocking condition in the sampling tube; the control module is connected with the detection assembly and used for controlling the on-off of the sampling tube according to the monitoring data of the detection assembly; wherein the adsorption module is made of water-swelling material. According to the utility model, the water-swelling adsorption module is arranged in the sampling tube to adsorb water vapor in the sampling tube; through being connected sampling pipe and detection component, detection component is connected with control module, detects the jam condition in the detection component monitoring sampling pipe, under the circumstances of jam in the sampling pipe, control module control sampling pipe disconnection stops the sampling, protection sampling device, and convenient user in time changes the sampling pipe, improves sampling accuracy, with low costs.
Description
Technical Field
The utility model relates to the technical field of medical instruments, in particular to a sampling device.
Background
In the microfluidic sampling, wearing the sampling tube for a long time can lead to the collection of water vapor in the sampling tube, along with the extension of wearing time, the water vapor that gets into sampling device also can be more and more, finally gathers the sampling point, condenses into the liquid column to cause irreversible damage to sampling device.
At present, a water collector is arranged at an air inlet of the sampling device or a section of water exchange tube is additionally arranged on the sampling tube, but the water collector can cause a large number of dead cavities, the precision of micro-flow sampling can be greatly reduced, and the sampling device with the water exchange tube is high in manufacturing cost and cannot be reused.
Disclosure of Invention
The utility model provides a sampling device which is used for solving the problems of low micro-flow sampling precision and high cost when the sampling device prevents water from entering in the prior art.
The utility model provides a sampling device, comprising: the device comprises a sampling tube, an adsorption module, a detection assembly and a control module, wherein an outlet of the sampling tube is connected with the detection assembly, the adsorption module is arranged in the sampling tube and is used for adsorbing water vapor in the sampling tube, and the detection assembly is used for monitoring the blocking condition in the sampling tube; the control module is connected with the detection assembly and is used for controlling the on-off of the sampling tube according to the monitoring data of the detection assembly; wherein the adsorption module is made of water-swelling materials.
According to the sampling device provided by the utility model, the sampling device further comprises a condensation module, wherein the condensation module is arranged on the outer wall surface of the sampling tube, and the condensation module is positioned between the adsorption module and the inlet of the sampling tube.
According to the sampling device provided by the utility model, the detection assembly comprises a first pressure sensor and a second pressure sensor, the first pressure sensor and the second pressure sensor are respectively connected with the control module, the outlet of the sampling tube is communicated with the first pressure sensor, and the first pressure sensor is used for monitoring the pressure in the sampling tube; the second pressure sensor is used for being communicated with the external environment and monitoring the atmospheric pressure; the control module is used for determining the difference value between the monitoring data of the first pressure sensor and the monitoring data of the second pressure sensor, and controlling the on-off of the sampling tube according to the difference value.
According to the sampling device provided by the utility model, the detection assembly further comprises a measurement module, and the measurement module is communicated with the outlet of the sampling tube and is used for monitoring the concentration of sampled gas.
According to the sampling device provided by the utility model, the sampling device further comprises an alarm module, the measuring module and the alarm module are respectively connected with the control module, and the control module is used for controlling the alarm module to send prompt information according to the data of the detection assembly.
According to the sampling device provided by the utility model, the sampling device further comprises an air pump, the air pump is connected with the control module and is connected with the sampling tube, and the air pump is used for adjusting the flow in the sampling tube.
According to the sampling device provided by the utility model, the sampling device further comprises a power supply module, and the condensing module, the first pressure sensor, the second pressure sensor, the measuring module, the control module, the alarm module and the air pump are respectively connected with the power supply module.
According to the sampling device provided by the utility model, the sampling device further comprises a shell, the first pressure sensor, the second pressure sensor, the measuring module, the control module, the power module, the alarm module and the air pump are all arranged in the shell, the shell is further provided with an inlet, and the sampling tube is connected with the first pressure sensor through the inlet.
According to the sampling device provided by the utility model, the sampling device further comprises a connecting component, an outlet of the sampling tube is communicated with an inlet of the connecting component, and the first pressure sensor and the measuring module are respectively communicated with the outlet of the connecting component.
According to the sampling device provided by the utility model, the connecting assembly comprises the connector and the connecting pipe, the outlet of the sampling pipe is communicated with the inlet of the connector, the outlet of the connector is communicated with the inlet of the connecting pipe, and the first pressure sensor and the measuring module are respectively communicated with the outlet of the connecting pipe.
According to the sampling device provided by the utility model, the water-swelling adsorption module is arranged in the sampling tube to adsorb the water vapor in the sampling tube, so that the water vapor is prevented from entering; the sampling tube is connected with the detection assembly, the detection assembly is connected with the control module, the detection assembly monitors the blocking condition in the sampling tube, and under the condition of blocking in the sampling tube, the control module controls the sampling tube to be disconnected, sampling is stopped, the sampling device is protected, the damage of the sampling device is avoided, and the service life of the sampling device is prolonged; meanwhile, the sampling tube is convenient for a user to replace in time, the sampling precision is improved, and the cost is low.
Drawings
In order to more clearly illustrate the utility model or the technical solutions of the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the utility model, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is an exploded view of a sampling device provided by the present utility model;
reference numerals:
1. a sampling tube; 2. an adsorption module; 3. a condensing module; 41. a first pressure sensor; 42. a second pressure sensor; 43. a measurement module; 5. a control module; 6. an air pump; 7. a power module; 81. an upper housing; 82. a lower housing; 83. a side plate; 831. an inlet; 91. a connector; 92. and (5) connecting pipes.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The sampling device provided by the present utility model is described below with reference to fig. 1.
The sampling device provided by the utility model comprises: the device comprises a sampling tube 1, an adsorption module 2, a detection assembly and a control module 5, wherein an outlet of the sampling tube 1 is connected with the detection assembly, the adsorption module 2 is arranged in the sampling tube 1 and is used for adsorbing water vapor in the sampling tube 1, and the detection assembly is used for monitoring the blocking condition in the sampling tube 1; the control module 5 is connected with the detection assembly, and the control module 5 is used for controlling the on-off of the sampling tube 1 according to the monitoring data of the detection assembly; wherein the adsorption module 2 is made of water-swelling material.
In order to avoid water vapor from entering, the utility model provides a sampling device, which comprises a sampling tube 1, wherein the sampling tube 1 is worn for a long time, water vapor gathers in the sampling tube 1, and an adsorption module 2 is arranged in the sampling tube 1, and the adsorption module 2 can adsorb water and expand when meeting water to block the sampling tube 1.
The sampling device provided by the utility model further comprises a detection component and a control module 5, wherein the detection component is used for monitoring the blocking condition in the sampling tube 1, and the control module 5 controls the sampling tube 1 to be disconnected and stops sampling under the condition that the detection component monitors the blocking condition in the sampling tube 1, so that a user can replace the sampling tube 1, the sampling device is protected, water vapor is prevented from entering, equipment is prevented from being damaged, and the service life of the sampling device is prolonged; and the sampling precision is high, and the cost is low.
According to the utility model, the water-swelling adsorption module is arranged in the sampling tube to adsorb the water vapor in the sampling tube and prevent the water vapor from entering; the sampling tube is connected with the detection assembly, the detection assembly is connected with the control module, the detection assembly monitors the blocking condition in the sampling tube, and under the condition of blocking in the sampling tube, the control module controls the sampling tube to be disconnected, sampling is stopped, the sampling device is protected, the damage of the sampling device is avoided, and the service life of the sampling device is prolonged; meanwhile, the sampling tube is convenient for a user to replace in time, the sampling precision is improved, and the cost is low.
The utility model can monitor the flow change in the sampling tube 1 through the flowmeter to judge the blocking condition in the sampling tube 1; the blockage situation in the sampling tube 1 can be judged by monitoring the humidity change of the adsorption module 2 through a humidity detector; the change of the adsorption module 2 can be monitored through the video monitoring module to judge the blocking condition of the sampling tube 1. According to the utility model, through linkage of the detection assembly, the adsorption assembly and the control module, water vapor is prevented from entering, the sampling device is protected, and the sampling precision is improved.
On the basis of the above embodiment, further, the sampling device further includes a condensation module 3, the condensation module 3 is disposed on the outer wall surface of the sampling tube 1, and the condensation module 3 is located between the adsorption module 2 and the inlet of the sampling tube 1.
The steam gets into in the sampling pipe 1, can become the liquid drop at the position condensation that corresponds condensation module 3 in sampling pipe 1, and the liquid drop is adsorbed the water absorbing material in the adsorption module 2 and is expanded, prevents to admit air, and then makes sampling pipe 1 jam, and control module 5 control sampling pipe 1 disconnection reminds the user to change sampling pipe 1.
The condensing module 3 comprises a first condensing sheet and a second condensing sheet, the first condensing sheet and the second condensing sheet are buckled on the outer wall surface of the sampling tube 1, the first condensing sheet and the second condensing sheet are arranged close to an inlet 831 of the sampling tube 1 and are positioned between the adsorption module 2 and the sampling tube 1, water vapor enters the sampling tube 1, and liquid drops are formed at positions of the sampling tube 1 corresponding to the first condensing sheet and the second condensing sheet; further, the adsorption module 2 adsorbs and expands to prevent continuous air intake, and the sampling tube 1 is blocked.
The first condensing sheet and the second condensing sheet in the present utility model may be semiconductor condensing sheets.
Further, on the basis of the above embodiment, the detection assembly comprises a first pressure sensor 41 and a second pressure sensor 42, the first pressure sensor 41 and the second pressure sensor 42 are respectively connected with the control module 5, the outlet of the sampling tube 1 is communicated with the first pressure sensor 41, and the first pressure sensor 41 is used for monitoring the pressure in the sampling tube 1; the second pressure sensor 42 is used for communicating with the external environment and monitoring the atmospheric pressure; the control module 5 is used for determining a difference value between the monitoring data of the first pressure sensor 41 and the monitoring data of the second pressure sensor 42, and controlling the on-off of the sampling tube 1 according to the difference value.
The first pressure sensor 41 is communicated with the outlet of the sampling tube 1 and is used for monitoring the pressure in the sampling tube 1, water vapor enters the sampling tube 1, is condensed into liquid drops through the condensation module 3, the liquid drops are adsorbed by the adsorption module 2 to prevent air intake, the pressure in the sampling tube 1 changes at the moment, the control module 5 controls the sampling tube 1 to be disconnected, air intake is stopped, a user is reminded to replace the sampling tube 1, the water vapor is prevented from entering the sampling device to influence the sampling precision, and the sampling device is protected.
Further, the second pressure sensor 42 is in communication with the external environment for collecting the atmospheric pressure; the control module 5 receives the monitoring data of the first pressure sensor 41 and the monitoring data of the second pressure sensor 42, determines a difference value between the monitoring data and the monitoring data, and controls the sampling tube 1 to be disconnected, stops sampling and protects the sampling device under the condition that the difference value between the monitoring data and the monitoring data does not meet a preset difference value.
Further, the detection assembly further comprises a measurement module 43, the measurement module 43 being adapted to detect the concentration within the sampling tube 1, for example the concentration of carbon dioxide.
The detection assembly comprises a first pressure sensor 41, a second pressure sensor 42 and a measurement module 43, wherein the first pressure sensor 41 is used for monitoring pressure data in the sampling tube 1, the second pressure sensor 42 is used for detecting atmospheric pressure data, the first pressure sensor 41 and the second pressure sensor 42 are respectively connected with the control module 5, the control module 5 receives the data of the first pressure sensor 41 and the data of the second pressure sensor 42, calculates a difference value between the pressure in the sampling tube 1 and the atmospheric pressure, and controls the on-off of the sampling tube 1 according to the difference value; the measurement module 43 is used to monitor the concentration of the sampled gas in the sampling tube.
The adsorption module 2 adsorbs condensed liquid drops in the sampling tube 1, expansion occurs, air intake is prevented, at this time, the difference between the pressure in the sampling tube 1 and the atmospheric pressure changes, and a user judges the blockage condition of the sampling tube 1 through the change of the pressure difference.
The sampling device provided by the utility model further comprises an alarm module, the measurement module 43 and the alarm module are respectively connected with the control module 5, and the control module 5 is used for controlling the alarm module to send out prompt information according to the data of the detection component.
According to the utility model, the detection component and the alarm module are respectively connected with the control module 5, the control module 5 receives the monitoring data of the first pressure sensor 41, the monitoring data of the second pressure sensor 42 and the monitoring data of the measurement module 43, and when the control module determines that the difference between the pressure in the sampling tube 1 and the atmospheric pressure is greater than a preset value, the control module 5 controls the sampling tube 1 to be disconnected, prevents air from entering, controls the alarm module to send prompt information, reminds a user to replace the sampling tube 1 in time, and avoids water vapor from entering the sampling device; under the condition that the monitoring data of the measuring module 43 are abnormal, the control module 5 controls the sampling tube to be disconnected and controls the alarm module to send out prompt information, so that a user can check the prompt information in time.
In one embodiment, under the condition that the control module 5 determines that the difference between the pressure in the sampling tube 1 and the atmospheric pressure exceeds 15Kpa, the control module 5 controls the sampling tube 1 to be disconnected, and controls the alarm module to send prompt information to remind a user to replace the sampling tube 1, so that water vapor is prevented from entering the sampling device, and the sampling precision is improved.
The alarm module in this embodiment may be a voice module or a display module, so as to remind the user to replace the sampling tube 1 in time.
The sampling device provided by the utility model further comprises an air pump 6, the air pump 6 is connected with the control module 5, the air pump 6 is connected with the sampling tube 1, and the air pump 6 is used for adjusting the flow in the sampling tube 1.
According to the utility model, the air pump 6 module is connected with the sampling tube 1, the air pump 6 is connected with the control module 5, the control module 5 controls the air pump 6 to adjust the flow of the air channel in the sampling tube 1, the flow of the air channel in the sampling tube 1 is reasonably controlled, and the sampling precision is improved.
The sampling device provided by the utility model further comprises a power supply module 7, wherein the condensing module 3, the first pressure sensor 41, the second pressure sensor 42, the measuring module 43, the control module 5, the alarm module and the air pump 6 are respectively connected with the power supply module 7, and the power supply module 7 supplies power to the condensing module 3, the first pressure sensor 41, the second pressure sensor 42, the measuring module 43, the control module 5, the alarm module and the air pump 6.
The sampling device provided by the utility model further comprises a shell, wherein the first pressure sensor 41, the second pressure sensor 42, the measuring module 43, the control module 5, the power module 7, the alarm module and the air pump 6 are arranged in the shell, the shell is further provided with an inlet 831, and the sampling tube 1 is connected with the first pressure sensor 41 through the inlet 831.
Referring to fig. 1, the housing provided in this embodiment includes an upper housing 81, a lower housing 82 and a side plate 83, in which the first pressure sensor 41, the second pressure sensor 42, the measurement module 43, the control module 5, the alarm module and the air pump 6 are disposed, and the upper housing 81 or the side plate 83 is opened by a user to repair and replace any component; further, an inlet 831 is provided on the upper housing 81 or the side plate 83 corresponding to the first pressure sensor 41, and an outlet of the sampling tube 1 is communicated with the first pressure sensor 41 through the inlet 831, and is communicated with the first pressure sensor 41 only through the inlet 831, so that the components inside the housing are isolated from the outside, and the internal components are protected.
The sampling device of the present utility model further comprises a connection assembly, the outlet of the sampling tube 1 being in communication with the inlet 831 of the connection assembly, and the first pressure sensor 41 and the measuring module being in communication with the outlet of the connection assembly, respectively.
The utility model avoids frequent opening of the housing to replace the sampling tube 1 by arranging the connecting component between the sampling tube 1 and the inlet of the housing, is convenient to operate, and avoids water vapor from entering the first pressure sensor 41 and the measuring module 43 during the replacement of the sampling tube.
The connecting assembly in the utility model comprises a connector 91 and a connecting pipe 92, wherein the outlet of the sampling tube 1 is communicated with an inlet 831 of the connector 91, the outlet of the connector 91 is communicated with an inlet 831 of the connecting pipe 92, and the first pressure sensor 41 and the measuring module 43 are respectively communicated with the outlets of the connecting pipes 92.
The sampling tube 1 is communicated with the first pressure sensor 41 through the connector 91 and the connecting tube 92, so that the direct communication of the sampling tube 1 and the first pressure sensor 41 is avoided, the entry of water vapor in the sampling tube 1 is prevented, meanwhile, a user can directly disconnect the connection between the sampling tube 1 and the connector 91 to realize replacement, the quick disassembly is realized, and the operability is strong.
In one embodiment, the connector 91 may be a luer connector, the inlet 831 of which communicates with the sampling tube 1, and the outlets of the first pressure sensor 41 and the measurement module 43, respectively, of which communicate.
According to the utility model, the condensing module 3 is arranged on the outer wall surface of the sampling tube 1, the adsorption module 2 is arranged in the sampling tube 1, the condensing module 3 is arranged close to the inlet 831 of the sampling tube 1, the adsorption module 2 is arranged between the condensing module 3 and the outlet of the sampling tube 1, a user exhales water vapor, the water vapor can be condensed into liquid drops at the position corresponding to the condensing module 3 in the sampling tube 1, the liquid drops are adsorbed by the adsorption module 2 to expand, and a sampling gas path is blocked; further, the first pressure sensor 41 is communicated with the outlet of the sampling tube 1 and is used for monitoring the pressure in the sampling tube 1, the second pressure sensor 42 is used for detecting the atmospheric pressure, and when the control module 5 determines that the pressure difference between the first pressure sensor and the second pressure sensor is larger than the preset pressure difference, the air channel in the sampling tube 1 is blocked at the moment, the control module 5 prevents the sampling tube 1 from continuing to sample, and controls the alarm module to send out prompt information to remind a user to replace the sampling tube 1.
The utility model adopts the idea of blocking the gas path by the linkage of the condensation module 3 and the adsorption module 2, judges the blocking state by the pressure difference, avoids the entry of water vapor, protects the sampling device, improves the measurement precision, and has low cost and convenient operation.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.
Claims (10)
1. A sampling device, comprising: the device comprises a sampling tube, an adsorption module, a detection assembly and a control module, wherein an outlet of the sampling tube is connected with the detection assembly, the adsorption module is arranged in the sampling tube and is used for adsorbing water vapor in the sampling tube, and the detection assembly is used for monitoring the blocking condition in the sampling tube; the control module is connected with the detection assembly and is used for controlling the on-off of the sampling tube according to the monitoring data of the detection assembly; wherein the adsorption module is made of water-swelling materials.
2. The sampling device of claim 1, further comprising a condensing module disposed on an outer wall surface of the sampling tube, and wherein the condensing module is located between the adsorbing module and an inlet of the sampling tube.
3. The sampling device of claim 2, wherein the detection assembly comprises a first pressure sensor and a second pressure sensor, the first pressure sensor and the second pressure sensor being respectively connected to the control module, the outlet of the sampling tube being in communication with the first pressure sensor, the first pressure sensor being for monitoring the pressure within the sampling tube;
the second pressure sensor is used for being communicated with the external environment and monitoring the atmospheric pressure; the control module is used for determining the difference value between the monitoring data of the first pressure sensor and the monitoring data of the second pressure sensor, and controlling the on-off of the sampling tube according to the difference value.
4. The sampling device of claim 3, wherein the detection assembly further comprises a measurement module in communication with the outlet of the sampling tube for monitoring the concentration of the sampled gas.
5. The sampling device of claim 4, further comprising an alarm module, wherein the measurement module and the alarm module are respectively connected to the control module, and the control module is configured to control the alarm module to send a prompt message according to the data of the detection component.
6. The sampling device of claim 5, further comprising an air pump, wherein the air pump is coupled to the control module and the air pump is coupled to the sampling tube, wherein the air pump is configured to regulate flow within the sampling tube.
7. The sampling device of claim 6, further comprising a power module, wherein the condensing module, the first pressure sensor, the second pressure sensor, the measuring module, the control module, the alarm module, and the air pump are each coupled to the power module.
8. The sampling device of claim 7, further comprising a housing, wherein the first pressure sensor, the second pressure sensor, the measurement module, the control module, the power module, the alarm module, and the air pump are all disposed within the housing, wherein the housing is further provided with an inlet, and wherein the sampling tube is connected to the first pressure sensor through the inlet.
9. The sampling device of claim 8, further comprising a connection assembly, wherein the outlet of the sampling tube communicates with the inlet of the connection assembly, and wherein the first pressure sensor and the measurement module communicate with the outlet of the connection assembly, respectively.
10. The sampling device of claim 9, wherein the connection assembly comprises a connector and a connecting tube, the outlet of the sampling tube is in communication with the inlet of the connector, the outlet of the connector is in communication with the inlet of the connecting tube, and the first pressure sensor and the measurement module are in communication with the outlet of the connecting tube, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321140051.5U CN219982927U (en) | 2023-05-12 | 2023-05-12 | Sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321140051.5U CN219982927U (en) | 2023-05-12 | 2023-05-12 | Sampling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219982927U true CN219982927U (en) | 2023-11-10 |
Family
ID=88620230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321140051.5U Active CN219982927U (en) | 2023-05-12 | 2023-05-12 | Sampling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219982927U (en) |
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2023
- 2023-05-12 CN CN202321140051.5U patent/CN219982927U/en active Active
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