CN218075090U - Pneumoperitoneum machine with humidification and heating functions - Google Patents
Pneumoperitoneum machine with humidification and heating functions Download PDFInfo
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- CN218075090U CN218075090U CN202221694240.2U CN202221694240U CN218075090U CN 218075090 U CN218075090 U CN 218075090U CN 202221694240 U CN202221694240 U CN 202221694240U CN 218075090 U CN218075090 U CN 218075090U
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Abstract
The utility model relates to a pneumoperitoneum machine with humidification and heating function, it heats to the CO2 gas that comes from the air supply to be provided with the heater, the CO2 gas after will heating sends into humidification in the humidifying cup, the temperature of the humidifying liquid that this application held through setting up in the humidifying cup is greater than the gaseous temperature of the CO2 after the heating, carry out temperature compensation to the CO2 gas, thereby realize carrying out heat retaining purpose to the CO2 gas after the heating, make the CO2 gas not only the temperature after the heating can not descend, and the temperature still can be slightly higher than the temperature after the heater heating, the heat of the gaseous CO2 gas after the heating at transportation process loss has been compensatied, make the temperature and the humidity that reach the CO2 gas in the abdominal cavity all be close original temperature and humidity in the abdominal cavity, reduce patient's discomfort.
Description
Technical Field
The application relates to the technical field of pneumoperitoneum machines, in particular to a pneumoperitoneum machine with humidifying and heating functions.
Background
In laparoscopic surgery, in order to provide a surgeon with a good surgical operation space and a good visual field, CO2 gas needs to be injected into the abdominal cavity of a patient to swell the abdomen of the patient, and a certain gas pressure needs to be maintained in the abdomen. The pneumoperitoneum machine is used as an important medical device for realizing the function, and has wide application in the aspects of establishing and maintaining pneumoperitoneum in laparoscopic surgery.
Generally, on the one hand, since the temperature and humidity of the injected CO2 gas are lower than those in the abdominal cavity of the human body, direct injection into the human body may cause discomfort to the patient, and may have a certain effect on the health and postoperative recovery of the patient. On the other hand, after the CO2 gas with the temperature lower than the temperature of the human body enters the abdominal cavity, the water vapor is liquefied and adhered to the lens of the laparoscope, so that the operation is difficult, and the operation time is prolonged. Therefore, it is important to humidify and heat the dry and cold CO2 gas output from the pneumoperitoneum machine.
Most pneumoperitoneum machines currently on the market lack a humidifying function. There are some rare pneumoperitoneum devices having a humidifying function, which have a serious problem in that the temperature of CO2 gas is lowered after humidifying C02 gas. Because CO2 gas still need can reach patient's abdominal cavity through longer distance after the heating humidification, consequently CO2 gas can lose the heat and lead to the temperature reduction in the transmission course after the humidification, leads to the heating effect variation to make the humidity of the CO2 gas that gets into human abdominal cavity lower, cause patient's discomfort easily.
SUMMERY OF THE UTILITY MODEL
In view of the above, it is necessary to provide a pneumoperitoneum device with humidification and heating functions, which can reduce the temperature of CO2 gas after humidifying C02 gas in the conventional pneumoperitoneum device with humidification and heating functions.
The application provides a pneumoperitoneum machine with humidification and heating function, pneumoperitoneum machine with humidification and heating function includes:
a gas source;
the pneumoperitoneum machine body is connected with the gas source through a gas source supply pipeline;
the pneumoperitoneum needle is connected with the pneumoperitoneum machine body through a gas transmission pipeline; the gas source supply pipeline is communicated with the gas transmission pipeline;
the heater is arranged above the gas transmission pipeline, is close to the pneumoperitoneum machine body and is used for heating CO2 gas from the gas source; the heater is also electrically connected with the pneumoperitoneum machine body;
the humidifying cup is arranged above the gas transmission pipeline, is arranged between the heater and the veress needle, and is used for humidifying the heated CO2 gas; the humidifying cup is internally provided with humidifying liquid, and the temperature of the humidifying liquid is higher than that of the heated CO2 gas;
the first temperature sensor is arranged in the humidifying cup; the first temperature sensor is electrically connected with the pneumoperitoneum machine body.
Further, the gas transmission pipeline comprises a first gas transmission pipeline, a second gas transmission pipeline and a heat preservation pipeline;
one end of the first gas transmission pipeline is connected with the gas source supply pipeline, and the other end of the first gas transmission pipeline is connected with the heater;
one end of the second gas transmission pipeline is connected with the heater, and the other end of the second gas transmission pipeline is connected with the humidifying cup;
one end of the heat-insulating pipeline is connected with the humidifying cup, and the other end of the heat-insulating pipeline is connected with the pneumoperitoneum needle;
the heat-insulating pipe is characterized in that a heating wire is arranged on the heat-insulating pipe, and the heating wire is attached to the pipe wall of the heat-insulating pipe.
Further, the heater strip sets up to the spring form, sets up to the heater strip embedding of spring form heat preservation pipeline, and attached in heat preservation pipeline's inner wall.
Furthermore, the heat-insulating pipeline comprises an inner pipe and an outer pipe which are nested with each other, and the outer pipe is sleeved outside the inner pipe;
the heating wire is coiled on the outer wall of the inner pipe.
Further, the pneumoperitoneum machine with humidification and heating function still includes:
the second temperature sensor is arranged at the joint between the heat-insulating pipeline and the pneumoperitoneum needle; the second temperature sensor is electrically connected with the pneumoperitoneum machine body.
Further, the pneumoperitoneum machine body includes:
a pneumoperitoneum casing having an accommodating space therein, the heater being disposed in the accommodating space;
a controller disposed in the accommodating space; the controller is electrically connected with the heater; the controller is also electrically connected with the first temperature sensor; the controller is also electrically connected with the second temperature sensor.
Further, the temperature of the humidification fluid is 40 ℃.
Further, the pneumoperitoneum machine with humidification and heating function still includes:
and the regulating valve is arranged on the first gas transmission pipeline and used for regulating the pressure and the flow of the CO2 gas from the gas source.
Further, the pneumoperitoneum machine with humidification and heating function still includes:
the display screen is embedded on the surface of the pneumoperitoneum shell and is electrically connected with the controller;
and the key detection device is embedded in the pneumoperitoneum shell and electrically connected with the controller.
Further, the pneumoperitoneum machine with humidification and heating still includes:
and the alarm device is electrically connected with the controller.
The utility model relates to a pneumoperitoneum machine with humidification and heating function, it heats to the CO2 gas that comes from the air supply to be provided with the heater, send the CO2 gas after the heating into humidification in the humidifying cup, the temperature of humidifying liquid through setting up holding in the humidifying cup of this application is greater than the gaseous temperature of the CO2 after the heating, carry out temperature compensation to CO2 gas, thereby realize carrying out heat retaining purpose to the CO2 gas after the heating, make the CO2 gas not only the temperature after the heating can not descend, and the temperature still can be a little higher than the temperature after the heater heating, compensate the heat of the CO2 gas after the heating at transportation process loss, make the temperature and the humidity that reach the CO2 gas in the abdominal cavity all be close to original temperature and humidity in the abdominal cavity, reduce patient's discomfort.
Drawings
Fig. 1 is a schematic structural diagram of a pneumoperitoneum apparatus with humidification and heating functions according to an embodiment of the present application.
Fig. 2 is a schematic structural diagram of a pneumoperitoneum apparatus with humidification and heating functions according to an embodiment of the present application.
Fig. 3 is a schematic structural diagram of a pneumoperitoneum apparatus with humidification and heating functions according to an embodiment of the present application.
Fig. 4 is a schematic structural diagram of a pneumoperitoneum device with humidification and heating functions according to an embodiment of the present application.
Fig. 5 is a top view of a pneumoperitoneum machine body with humidification and heating functions according to an embodiment of the present application.
Reference numerals:
10-a gas source; 20-pneumoperitoneum machine body; 210-pneumoperitoneum housing; 220-a containment space; 230-a controller;
30-veress needle; 40-a heater; 50-a humidifying cup; 51-a first temperature sensor;
52-a second temperature sensor; 610-a gas source supply conduit; 620-gas transmission pipeline;
621-a first gas transmission pipeline; 622-a second gas transmission pipeline; 623-heat preservation pipelines; 623 a-inner tube;
623 b-outer tube; 630-a heating wire; 70-a regulating valve; 810-display screen; 820-key detection means;
90-alarm device.
Detailed Description
For the purpose of making the present application more apparent, technical solutions and advantages thereof are described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
The application provides an pneumoperitoneum machine with humidification and heating function.
As shown in fig. 1, in an embodiment of the present application, the pneumoperitoneum machine with humidification and heating functions includes an air source 10, a pneumoperitoneum machine body 20, a pneumoperitoneum needle 30, a heater 40, a humidification cup 50, and a first temperature sensor 51.
The pneumoperitoneum machine body 20 is connected with the air source 10 through an air source supply pipeline 610. The pneumoperitoneum needle 30 is connected with the pneumoperitoneum machine body 20 through a gas transmission pipeline 620. The air supply line 610 is in communication with the air delivery line 620. The heater 40 is disposed above the gas transmission pipe 620. The heater 40 is disposed adjacent to the pneumoperitoneum machine body 20. The heater 40 is used to heat the CO2 gas from the gas source 10. The heater 40 is also electrically connected to the pneumoperitoneum machine body 20.
The humidification cup 50 is disposed above the gas transmission pipe 620. The humidifying cup 50 is disposed between the heater 40 and the veress needle 30. The humidification cup 50 is used for humidifying the heated CO2 gas. The humidifying cup 50 is filled with humidifying liquid. The temperature of the humidifying liquid is higher than that of the heated CO2 gas. The first temperature sensor 51 is disposed in the humidification cup 50. The first temperature sensor 51 is electrically connected to the pneumoperitoneum machine body 20.
Specifically, the gas source 10 may be a gas cylinder containing low-temperature dry-cold CO2 gas. The CO2 gas stored in the gas source 10 is in a low temperature dry and cold state for easy storage.
The heater 40 is used to heat the CO2 gas from the gas source 10, in particular to a temperature close to the true temperature in the abdominal cavity. Alternatively, the heater 40 may heat the CO2 gas from the gas source 10 to 37 degrees Celsius.
The humidification cup 50 is configured as a closed pot, and the closing is to prevent the temperature of the internal humidification fluid from dropping too fast. The humidifying liquid contained in the humidifying cup 50 can be distilled water.
The temperature of the humidification liquid is higher than the temperature of the heated CO2 gas, namely higher than 37 ℃, so that the temperature of the humidified CO2 gas is not lower than 37 ℃ and is slightly higher than 37 ℃, the CO2 gas is conveyed to the pneumoperitoneum needle 30 through the subsequent gas conveying pipeline 620, and the CO2 gas cannot fall below 37 ℃ due to the heat lost in the process of conveying the CO2 gas into the abdominal cavity, so that discomfort of a patient is caused.
A first temperature sensor 51 is disposed inside the humidification cup 50. The probe of the first temperature sensor 51 extends below the surface of the wetting fluid. The first temperature sensor 51 is used for detecting the temperature of the humidification liquid in real time and returning the temperature of the humidification liquid to the pneumoperitoneum machine body 20. This makes pneumoperitoneum machine body 20 can real-time supervision humidifying liquid's temperature, when the temperature of humidifying liquid is lower and be less than first preset temperature value, can in time change the humidifying liquid of normal temperature (be promptly the temperature be greater than or equal to first preset temperature value). The first preset temperature value may be set to be in a temperature range of 37 degrees or more and 40 degrees or less.
In this embodiment, it heats to be provided with the CO2 gas that the heater comes from the air supply, the humidification is sent into in the humidifying cup with the CO2 gas after the heating, the temperature of humidifying liquid through setting up holding in the humidifying cup of this application is greater than the gaseous temperature of the CO2 after the heating, carry out temperature compensation to the CO2 gas, thereby realize carrying out heat retaining purpose to the CO2 gas after the heating, make the gaseous not only temperature of CO2 after the heating can not descend, and the temperature still can be higher than the temperature after the heater heating a little, the heat of the gaseous CO2 gas after having compensatied the heating at transportation process loss, make the temperature and the humidity that reach the CO2 gas in the abdominal cavity all be close original temperature and humidity in the abdominal cavity, reduce patient's discomfort.
In addition, the temperature of the humidifying liquid can be monitored in real time by arranging the first temperature sensor 51, so that the humidifying liquid can be replaced in time when the temperature of the humidifying liquid is reduced to be insufficient for heat preservation.
As shown in fig. 2, in an embodiment of the present application, the gas transmission pipeline 620 includes a first gas transmission pipeline 621, a second gas transmission pipeline 622, and an insulation pipeline 623. One end of the first gas transmission pipe 621 is connected to the gas supply pipe 610. The other end of the first gas transmission pipe 621 is connected to the heater 40. One end of the second gas transmission pipe 622 is connected to the heater 40. The other end of the second gas transmission pipeline 622 is connected with the humidifying cup 50. One end of the heat preservation pipeline 623 is connected with the humidification cup 50, and the other end of the heat preservation pipeline 623 is connected with the pneumoperitoneum needle 30. The heat preservation pipeline 623 is provided with a heating wire 630. The heating wire 630 is attached to the wall of the insulating pipe.
Specifically, in this embodiment, in addition to setting the temperature of the humidification liquid to be higher than the temperature of the heated CO2 gas, a heat insulation pipe 623 is further provided. The heating wires 630 are arranged on the heat preservation pipeline 623, so that a more accurate heat preservation and temperature control effect can be achieved.
In this embodiment, through setting up insulating tube 623 and heater strip 630, can carry out the secondary heating in the longer pipeline between humidifying cup 50 to pneumoperitoneum needle 30, realization that can be more accurate keeps warm and controls the temperature effect.
Therefore, the present embodiment is a technical scheme that there are the humidification cup 50, the heat preservation pipeline 623 and the heating wire 630, in the present embodiment, the heated CO2 gas is sent into the humidification cup 50 for humidification, the temperature of the humidification liquid is slightly higher than the temperature of the heated CO2, and the temperature compensation can be performed on the CO2 gas. The humidified CO2 gas passes through the heat insulation pipeline 623, and the heating wire 630 is arranged in the heat insulation pipeline 623, so that the purpose of accurately controlling the temperature of the humidified CO2 gas is achieved, the heat loss of the CO2 gas in the conveying process is made up, the temperature and the humidity of the CO2 gas sent into the abdominal cavity are close to the original temperature and humidity in the abdominal cavity, and the discomfort of a patient is reduced.
As shown in fig. 3, in one embodiment of the present application, the heating wire 630 is provided in a spring shape. The heating wire 630 which is arranged in a spring shape is embedded into the heat insulation pipeline 623, and the heating wire 630 is attached to the inner wall of the heat insulation pipeline 623.
Specifically, the heating wire 630 is embedded in the heat-insulating pipeline 623 in a spring shape, and in the embodiment, the heat-insulating pipeline 623 can be realized only by a single pipe, so that the cost is saved.
In one embodiment of the present application, as shown in fig. 4, the thermal insulation conduit 623 comprises an inner tube 623a and an outer tube 623b nested within each other. The outer tube 623b is sleeved outside the inner tube 623 a. The heating wire 630 is wound around the outer wall of the inner pipe 623 a.
Specifically, the thermal insulation pipeline 623 of the present embodiment uses not a single pipe but a double pipe. The heat preservation pipeline 623 comprises an inner pipe 623a and an outer pipe 623b which are nested with each other, and the heating wire 630 is coiled on the outer wall of the inner pipe 623a, so that the heat preservation pipeline 623 of the embodiment is more durable and is not easy to damage.
As shown in fig. 2, in an embodiment of the present application, the pneumoperitoneum apparatus with humidification and heating functions further includes a second temperature sensor 52. The second temperature sensor 52 is disposed at a connection between the thermal insulation pipe 623 and the veress needle 30. The second temperature sensor 52 is electrically connected to the pneumoperitoneum machine body 20.
Specifically, the second temperature sensor 52 may be disposed on the inner wall of the thermal insulation pipeline 623 at the connection between the thermal insulation pipeline 623 and the pneumoperitoneum needle 30, and will not affect the normal transmission of CO2 gas to the pneumoperitoneum needle 30.
The second temperature sensor 52 can detect the temperature of the CO2 gas at the outlet of the holding tube in real time. For example, when it is detected that the temperature of the CO2 gas in the heat-insulating tube is lower than 95% of the second preset temperature value, the pneumoperitoneum machine body 20 controls the heating wire 630 to heat, so that the temperature of the CO2 gas reaches the second preset temperature value. The second preset temperature value may be 37 degrees.
As shown in fig. 5, in an embodiment of the present application, the pneumoperitoneum machine body 20 includes a pneumoperitoneum housing 210 and a controller 230.
As shown in fig. 2, the pneumoperitoneum housing 210 is provided with an accommodating space 220 therein. The heater 40 is disposed in the accommodating space 220. The controller 230 is disposed in the accommodating space 220. The controller 230 is electrically connected to the heater 40. The controller 230 is also electrically connected to the first temperature sensor 51. The controller 230 is also electrically connected to the second temperature sensor 52.
Specifically, all of the control functions of the pneumoperitoneum machine body 20 described above are implemented by the controller 230.
In an embodiment of the present application, the temperature of the wetting fluid is 40 degrees celsius.
Specifically, the temperature of the wetting fluid is set to 40 degrees celsius in this embodiment. The temperature of the humidification fluid in this embodiment is the first predetermined temperature value mentioned above.
As shown in fig. 2, in an embodiment of the present application, the pneumoperitoneum apparatus with humidification and heating functions further includes a regulating valve 70.
The regulating valve 70 is disposed on the first gas transmission pipe 621. The regulating valve 70 is used to regulate the pressure and flow of the CO2 gas from the gas source 10.
Specifically, according to the clinical practice and the condition of different patients, the pressure and flow rate of the CO2 gas delivered to the heater 40, that is, the pressure and flow rate of the CO2 gas finally input into the abdominal cavity, are controlled by controlling the opening degree of the regulating valve 70, so that the discomfort of the patient can be avoided.
As shown in fig. 5, in an embodiment of the present application, the pneumoperitoneum apparatus with humidification and heating functions further includes a display 810 and a key detection device 820.
The display screen 810 is embedded in the surface of the pneumoperitoneum housing 210. A display screen 810 is electrically connected to the controller 230. The key detection device 820 is disposed inside the pneumoperitoneum housing 210, i.e., in the receiving space 220. The key detection device 820 is electrically connected to the controller 230.
Specifically, the display screen 810 is used for displaying the pressure parameter and other related parameters, such as the temperature of the wetting liquid in the wetting cup 50, the temperature of the CO2 gas in the thermal insulation pipe 623, and the like.
The display screen 810 is a touch screen. When a user presses a heating button in a display interface of the display screen 810, a first key signal is generated and sent to the key detection device 820, and the key detection device 820 detects the first key signal and forwards the first key signal to the controller 230. Further, the controller 230 controls the heater 40 to be activated to start the heating operation.
When the user presses the secondary heating button in the display interface of the display screen 810, a second key signal is generated and sent to the key detection device 820, and the key detection device 820 detects the second key signal and forwards the second key signal to the controller 230. Further, the controller 230 controls the heating wire 630 to start the heating operation.
The heating temperature can be set according to the clinical practice and the conditions of different patients.
As shown in fig. 5, in an embodiment of the present application, the pneumoperitoneum apparatus with humidification and heating functions further includes an alarm device 90. The alarm device 90 is electrically connected to the controller 230.
Specifically, when the temperature of the humidification fluid in the humidification cup 50 is detected to be lower than the first preset temperature value, the controller 230 may control the alarm device 90 to send out the first alarm signal. The first alarm signal may be an acoustic signal or an optical signal.
When detecting that the temperature of the CO2 gas in the insulating tube is lower than 95% of the second preset temperature value, the controller 230 may control the alarm device 90 to send a second alarm signal. The second alarm signal may be an acoustic signal or may be an optical signal.
The alarm device 90 includes one or more of a buzzer and an indicator light.
The technical features of the embodiments described above may be arbitrarily combined, the order of execution of the method steps is not limited, and for simplicity of description, all possible combinations of the technical features in the embodiments are not described, however, as long as there is no contradiction between the combinations of the technical features, the combinations of the technical features should be considered as the scope of the present description.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present application shall be subject to the appended claims.
Claims (10)
1. A pneumoperitoneum machine with humidification and heating functions, characterized in that, the pneumoperitoneum machine with humidification and heating functions includes:
a gas source;
the pneumoperitoneum machine body is connected with the gas source through a gas source supply pipeline;
the pneumoperitoneum needle is connected with the pneumoperitoneum machine body through a gas transmission pipeline; the gas source supply pipeline is communicated with the gas transmission pipeline;
the heater is arranged above the gas transmission pipeline, is close to the pneumoperitoneum machine body and is used for heating CO2 gas from the gas source; the heater is also electrically connected with the pneumoperitoneum machine body;
the humidifying cup is arranged above the gas transmission pipeline, is arranged between the heater and the veress needle, and is used for humidifying the heated CO2 gas; the humidifying cup is internally provided with humidifying liquid, and the temperature of the humidifying liquid is higher than that of the heated CO2 gas;
the first temperature sensor is arranged in the humidifying cup; the first temperature sensor is electrically connected with the pneumoperitoneum machine body.
2. The pneumoperitoneum apparatus with humidification and heating functions according to claim 1, wherein the gas transmission pipeline comprises a first gas transmission pipeline, a second gas transmission pipeline and a heat preservation pipeline;
one end of the first gas transmission pipeline is connected with the gas source supply pipeline, and the other end of the first gas transmission pipeline is connected with the heater;
one end of the second gas transmission pipeline is connected with the heater, and the other end of the second gas transmission pipeline is connected with the humidifying cup;
one end of the heat-insulating pipeline is connected with the humidifying cup, and the other end of the heat-insulating pipeline is connected with the pneumoperitoneum needle;
the heating pipe is characterized in that a heating wire is arranged on the heat-insulating pipeline and attached to the pipe wall of the heat-insulating pipe.
3. The pneumoperitoneum machine with humidification and heating functions as claimed in claim 2, wherein the heating wire is spring-shaped, and the spring-shaped heating wire is embedded in the heat-insulating pipeline and attached to the inner wall of the heat-insulating pipeline.
4. The pneumoperitoneum machine with humidification and heating functions as claimed in claim 2, wherein the heat preservation pipeline comprises an inner pipe and an outer pipe which are nested with each other, and the outer pipe is sleeved outside the inner pipe;
the heating wire is coiled on the outer wall of the inner pipe.
5. A pneumoperitoneum device with humidification and heating functions as claimed in claim 3 or 4, wherein the pneumoperitoneum device with humidification and heating functions further comprises:
the second temperature sensor is arranged at the joint between the heat-insulating pipeline and the pneumoperitoneum needle; the second temperature sensor is electrically connected with the pneumoperitoneum machine body.
6. The pneumoperitoneum device with humidification and heating functions according to claim 5, wherein the pneumoperitoneum device body comprises:
a pneumoperitoneum casing having an accommodating space therein, the heater being disposed in the accommodating space;
a controller disposed in the accommodating space; the controller is electrically connected with the heater; the controller is also electrically connected with the first temperature sensor; the controller is also electrically connected with the second temperature sensor.
7. The pneumoperitoneum device with humidification and heating functions according to claim 6, wherein the temperature of the humidification liquid is 40 degrees centigrade.
8. The pneumoperitoneum apparatus with humidification and heating functions according to claim 7, further comprising:
and the regulating valve is arranged on the first gas transmission pipeline and is used for regulating the pressure and the flow of the CO2 gas from the gas source.
9. The pneumoperitoneum device with humidification and heating as claimed in claim 8, wherein the pneumoperitoneum device with humidification and heating further comprises:
the display screen is embedded on the surface of the pneumoperitoneum shell and is electrically connected with the controller;
and the key detection device is arranged in the pneumoperitoneum shell and is electrically connected with the controller.
10. The pneumoperitoneum device with humidification and heating as claimed in claim 9, wherein the pneumoperitoneum device with humidification and heating further comprises:
and the alarm device is electrically connected with the controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221694240.2U CN218075090U (en) | 2022-06-30 | 2022-06-30 | Pneumoperitoneum machine with humidification and heating functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221694240.2U CN218075090U (en) | 2022-06-30 | 2022-06-30 | Pneumoperitoneum machine with humidification and heating functions |
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| CN218075090U true CN218075090U (en) | 2022-12-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202221694240.2U Active CN218075090U (en) | 2022-06-30 | 2022-06-30 | Pneumoperitoneum machine with humidification and heating functions |
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