CN215230768U - Pneumoperitoneum machine with heating function - Google Patents
Pneumoperitoneum machine with heating function Download PDFInfo
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- CN215230768U CN215230768U CN202121121114.3U CN202121121114U CN215230768U CN 215230768 U CN215230768 U CN 215230768U CN 202121121114 U CN202121121114 U CN 202121121114U CN 215230768 U CN215230768 U CN 215230768U
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Abstract
The utility model discloses a pneumoperitoneum machine with heating function, which comprises an air source pressure reducing module, an air storage tank, a proportional valve, a gas heating module, a pressure sensor and a controller, wherein the air storage tank is connected with an air source through the air source pressure reducing module, the outlet of the air storage tank is connected with a flow proportional valve, the flow of output gas is controlled by the flow proportional valve, the gas heating module is connected with the outlet end and the gas outlet of the flow proportional valve, and the pressure sensor is connected with the gas outlet to detect the gas pressure of the gas port; the controller controls the flow proportional valve and the gas heating module to operate; the utility model discloses add gaseous heating module for the carbon dioxide gas that gets into can heat up to abdominal cavity temperature, and then guarantees that the peritoneoscope camera lens does not produce the steam condensation because of the difference in temperature of gas and abdominal cavity, satisfies the clinical demand to the camera lens definition. The smoke removal pump is additionally arranged, smoke on the side of the lens is extracted while gas is injected into the abdominal cavity, and the definition of the visual field at the lens is further improved.
Description
Technical Field
The utility model relates to a pneumoperitoneum machine field, in particular to pneumoperitoneum machine of function is heated in area
Background
The pneumoperitoneum machine is special equipment for building and maintaining pneumoperitoneum in laparoscopic surgery, has the function of building artificial pneumoperitoneum, namely, the abdominal wall is separated from visceral organs through mechanical pressurization and inflation of the pneumoperitoneum machine, provides enough operation space for the surgery, and can avoid injury to the visceral organs when a puncture cannula punctures the abdominal cavity of a human body. And because the temperature difference exists between the gas and the abdominal cavity, water vapor condensation is easy to generate, and the requirement of the definition of the lens cannot be met.
SUMMERY OF THE UTILITY MODEL
To overcome the defects in the prior art, the main object of the utility model is to disclose a pneumoperitoneum machine with heating function, which comprises an air source pressure reducing module, an air storage tank, a proportional valve, an air heating module, a pressure sensor and a controller, wherein the air storage tank is connected with an air source through the air source pressure reducing module, the outlet of the air storage tank is connected with the flow proportional valve, the flow of output air is controlled by the flow proportional valve, the air heating module is connected with the outlet end and the air outlet of the flow proportional valve, and the pressure sensor is connected to the air outlet to detect the air pressure of the air outlet; the controller controls the flow proportional valve and the gas heating module to operate;
the gas heating module comprises a module body, an electric heating plate, heat insulation cotton and a driving module, wherein a gas channel is formed by penetrating the module body, the electric heating plate is embedded into the module body, the heat insulation cotton is wrapped outside the module body, and the driving module is connected with the electric heating plate and the controller.
Further, still include the three-way valve and remove the smoke pump, the gas outlet includes first gas outlet and second gas outlet, the entry end of three-way valve with the gas heating module is connected, the export of three-way valve respectively with first gas outlet with the second gas outlet is connected, remove the smoke pump and connect the extraction opening with the entry end of gas heating module.
Further, the driving module comprises a first field effect transistor and a second field effect transistor, wherein a base level of the first field effect transistor is connected with the controller through a resistor, a radiation level of the first field effect transistor is grounded, a collector electrode of the first field effect transistor is connected with the second field effect transistor through a resistor, and a radiation level of the second field effect transistor is connected with the heating plate through a filter circuit.
Furthermore, the filter circuit comprises a first capacitor, a second capacitor and an inductor, wherein the emitter of the second field effect transistor is connected with the electric heating plate through the inductor, and the first capacitor and the second capacitor are connected in parallel and then are connected with the emitter of the second field effect transistor and the ground.
The utility model discloses the beneficial effect who gains:
the utility model discloses add gaseous heating module for the carbon dioxide gas that gets into can heat up to abdominal cavity temperature, and then guarantees that the peritoneoscope camera lens does not produce the steam condensation because of the difference in temperature of gas and abdominal cavity, satisfies the clinical demand to the camera lens definition. And set up two gas outlets, can select according to different demands, one of them gas outlet adds except that the smoke pump, takes out the flue gas of lens side when gas injection in to the abdominal cavity, further improves the definition in camera lens department field of vision.
Drawings
Fig. 1 is a schematic block diagram of a pneumoperitoneum machine with a heating function according to the present invention;
FIG. 2 is a schematic perspective view of a gas heating module;
FIG. 3 is a circuit diagram of a drive module of the gas heating module;
the reference numbers are as follows:
1. the block body, 2, the electric hot plate, 3, separate warm cotton, 11, passageway.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
A pneumoperitoneum machine with a heating function is shown in figure 1 and comprises an air source pressure reducing module, an air storage tank, a proportional valve, an air heating module, a pressure sensor and a controller, wherein the air storage tank is connected with an air source through the air source pressure reducing module, an outlet of the air storage tank is connected with a flow proportional valve, the flow of output air is controlled by the flow proportional valve, the air heating module is connected with an outlet end and an air outlet of the flow proportional valve, and the pressure sensor is connected to the air outlet to detect the air pressure of the air port; the controller controls the flow proportional valve and the gas heating module to operate. The air supply enters the air storage tank after being decompressed by the air supply decompression module, the controller controls the flow proportional valve to output the gas quantity according to the numerical value fed back by the pressure sensor, and the gas is heated by the gas heating module, so that the gas is close to the temperature in the abdominal cavity, and the water vapor condensation caused by the overlarge temperature difference is avoided.
As shown in fig. 2, the gas heating module comprises a module body 1, an electric heating plate 2, a heat insulation cotton 3 and a driving module, wherein a gas channel 11 is penetrated through the module body 1, the electric heating plate 2 is embedded in the module body 1, and the heat insulation cotton 3 is wrapped outside the module body 1 to insulate the module body 1; the driving module is connected with the electric heating plate 2 and the controller, and then the driving module is controlled by the controller to control the electric heating plate 2 to operate.
As shown in fig. 3, the driving module includes a first fet Q1 and a second fet U3, the controller is connected to the base of the first fet Q1 through a resistor R22, the emitter of the first fet Q1 is grounded, and the base and the emitter of the first fet Q1 are connected through a resistor R23. The power supply +24V is as the power access circuit of electric plate 2, and resistance R20 and R21 divide voltage to +24V and in order to be the on-off drive of second field effect transistor U3, and the collector of first field effect transistor Q1 is connected to the one end of R21, and the level of penetrating of second field effect transistor U3 passes through filter circuit and is connected with the electric plate, realizes the power supply to the electric plate. The filter circuit comprises a first capacitor C22, a second capacitor CE1 and an electric pole L8, the emitter of the second field-effect tube U3 is connected with an electric heating plate through an inductor L8, and the emitter of the second field-effect tube U3 and the ground are connected after the first capacitor C22 and the second capacitor CE1 are connected in parallel.
In the above embodiment, the first fet Q1 has a model number BSS 138; the second field effect transistor U3 is model IRF 7416.
In one embodiment, as shown in fig. 1, in order to further make the visual field around the lens clear during the operation, the pneumoperitoneum apparatus further comprises a three-way valve and a smoke removing pump, wherein the air outlet comprises a first air outlet and a second air outlet, the inlet end of the three-way valve is connected with the gas heating module, and the outlet of the three-way valve is respectively connected with the first air outlet and the second air outlet. And selecting the used air outlet through a three-way valve according to different requirements. When the second air outlet is selected, the smoke removing pump is connected with the air suction opening and the inlet end of the gas heating module, and the smoke removing pump is controlled by the controller to pump out and filter the gas in the abdominal cavity and then replenish the gas in the gas heating module.
The above are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention; the scope of the appended claims should be accorded the broadest interpretation so as to encompass all such modifications and equivalent arrangements as is within the spirit and scope of the present invention.
Claims (4)
1. The pneumoperitoneum machine with the heating function is characterized by comprising an air source pressure reducing module, an air storage tank, a flow proportional valve, an air heating module, a pressure sensor and a controller, wherein the air storage tank is connected with an air source through the air source pressure reducing module, an outlet of the air storage tank is connected with the flow proportional valve, the flow of output air is controlled by the flow proportional valve, the air heating module is connected with an outlet end and an air outlet of the flow proportional valve, and the pressure sensor is connected to the air outlet to detect the air pressure of the air outlet; the controller controls the flow proportional valve and the gas heating module to operate;
the gas heating module comprises a module body, an electric heating plate, heat insulation cotton and a driving module, wherein a gas channel is formed by penetrating the module body, the electric heating plate is embedded into the module body, the heat insulation cotton is wrapped outside the module body, and the driving module is connected with the electric heating plate and the controller.
2. The pneumoperitoneum machine with a warming function according to claim 1, further comprising a three-way valve and a smoke removal pump, wherein the air outlet comprises a first air outlet and a second air outlet, an inlet end of the three-way valve is connected with the gas heating module, an outlet of the three-way valve is respectively connected with the first air outlet and the second air outlet, and the smoke removal pump is connected with a suction opening and an inlet end of the gas heating module.
3. The pneumoperitoneum machine with the heating function according to claim 1, wherein the driving module comprises a first field effect transistor and a second field effect transistor, a base stage of the first field effect transistor is connected with the controller through a resistor, a radiation stage of the first field effect transistor is grounded, a collector electrode of the first field effect transistor is connected with the second field effect transistor through a resistor, and a radiation stage of the second field effect transistor is connected with the electric hot plate through a filter circuit.
4. The pneumoperitoneum machine with warming function according to claim 3, wherein the filter circuit comprises a first capacitor, a second capacitor and an inductor, wherein the emitter of the second field effect transistor is connected with the electric heating plate through the inductor, and the first capacitor and the second capacitor are connected in parallel and then connected with the emitter of the second field effect transistor and the ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121121114.3U CN215230768U (en) | 2021-05-24 | 2021-05-24 | Pneumoperitoneum machine with heating function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121121114.3U CN215230768U (en) | 2021-05-24 | 2021-05-24 | Pneumoperitoneum machine with heating function |
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| Publication Number | Publication Date |
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| CN215230768U true CN215230768U (en) | 2021-12-21 |
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| CN202121121114.3U Active CN215230768U (en) | 2021-05-24 | 2021-05-24 | Pneumoperitoneum machine with heating function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114176665A (en) * | 2021-12-28 | 2022-03-15 | 上海交通大学 | Temperature control humidification pneumoperitoneum device for laparoscopic surgery |
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2021
- 2021-05-24 CN CN202121121114.3U patent/CN215230768U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114176665A (en) * | 2021-12-28 | 2022-03-15 | 上海交通大学 | Temperature control humidification pneumoperitoneum device for laparoscopic surgery |
| CN114176665B (en) * | 2021-12-28 | 2024-01-23 | 上海交通大学 | Temperature-control humidifying pneumoperitoneum device for laparoscopic surgery |
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