Filter for pneumoperitoneum machine and pneumoperitoneum machine with heating function

Abstract

The invention provides a filter for a pneumoperitoneum machine and the pneumoperitoneum machine with a heating function, and relates to the technical field of medical instruments. The filter for the pneumoperitoneum machine comprises a filter shell, a smoke discharging filter element, a liquid condensing plate and a floating plate, the filter shell is provided with a smoke discharging channel, a first air inlet and a first air outlet, the first air inlet and the first air outlet are both communicated with the smoke discharging channel, the first air inlet is used for being communicated with an abdominal cavity, and the first air outlet is used for being communicated with the pneumoperitoneum machine; the smoke exhaust filter element is arranged in the smoke exhaust channel; the liquid condensing plate is arranged in the smoke exhaust channel, the liquid condensing plate is closer to the first air inlet than the smoke exhaust filter element, a smoke collecting cavity communicated with the smoke exhaust channel is formed in the liquid condensing plate, an exhaust hole is formed in the liquid condensing plate, one end of the exhaust hole is communicated with the smoke collecting cavity, and the other end of the exhaust hole faces the smoke exhaust filter element; the floating plate is arranged in the smoke collecting cavity and used for sealing the exhaust hole in the floating process, and the filter for the pneumoperitoneum machine can well prevent liquid from entering the pneumoperitoneum machine.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to a filter for an insufflator and an insufflator with a heating function. Background Art

[0002] Filters are generally used in laparoscopic minimally invasive surgery and are used in conjunction with an insufflator. The insufflator can deliver gas into the abdominal cavity. When high-energy medical devices are used during surgery, smoke will be generated in the surgical area. The smoke exhaust channel inside the filter will filter out impurities such as oil and fat in the smoke and then deliver the gas back to the insufflator to achieve the purpose of gas circulation.

[0003] The smoke generated during the operation will produce water vapor in the smoke exhaust channel. In addition, in the process of recovering the smoke, the patient's saline, body fluids and other liquids may also be inhaled into the smoke exhaust channel. Due to the limited internal space of the smoke exhaust channel, once the volume of the liquid sucked back during the operation is greater than the volume of the smoke exhaust channel, the liquid may enter the insufflator and cause damage to the insufflator, thereby making the operation unable to proceed. In severe cases, it may even cause harm to the patient. Summary of the invention

[0004] The purpose of the present application includes, for example, providing a filter for an insufflator, which can better prevent liquid from entering the insufflator.

[0005] The purpose of the present application also includes providing an insufflator with a heating function, which can better prevent liquid from entering the insufflator.

[0006] The embodiments of the present application can be implemented as follows: The embodiment of the present application provides a filter for a pneumoperitoneum machine, comprising: A filter housing, wherein the filter housing is provided with a smoke exhaust channel, a first air inlet and a first exhaust port, wherein the first air inlet and the first exhaust port are both connected to the smoke exhaust channel, the first air inlet is used to connect to the abdominal cavity, and the first exhaust port is used to connect to the pneumoperitoneum machine; A smoke exhaust filter element, wherein the smoke exhaust filter element is arranged in the smoke exhaust channel; a condenser plate, the condenser plate being arranged in the smoke exhaust passage, the condenser plate being closer to the first air inlet than the smoke exhaust filter element, the condenser plate being provided with a smoke collecting cavity connected to the smoke exhaust passage, the condenser plate being provided with an exhaust hole, one end of the exhaust hole being connected to the smoke collecting cavity, and the other end of the exhaust hole being directed toward the smoke exhaust filter element; A floating plate is disposed in the smoke collecting cavity and is used to close the exhaust hole during the floating process.

[0007] Optionally, the condensing plate includes a condensing plate body and an air intake hood arranged on the condensing plate body, the smoke collecting chamber is formed between the air intake hood and the condensing plate body, a plurality of through holes are opened on the air intake hood, the smoke collecting chamber is connected with the smoke exhaust channel through the plurality of through holes, and the exhaust hole is opened in the condensing plate body.

[0008] Optionally, the thickness direction of the floating plate is consistent with the thickness direction of the condensing plate body, and the thickness of the floating plate is less than or equal to the width of the smoke collecting cavity along the thickness direction of the floating plate.

[0009] Optionally, the condensation plate divides the smoke exhaust channel into a water accumulation chamber and an exhaust chamber, the water accumulation chamber is connected to the first air inlet, the exhaust chamber is connected to the first exhaust port, the air inlet hood is located in the water accumulation chamber, and the smoke exhaust filter is arranged in the exhaust chamber.

[0010] Optionally, a groove is provided on the outer side surface of the condensing plate body, a sealing ring is provided in the groove, and the sealing ring abuts against the inner wall of the smoke exhaust channel.

[0011] Optionally, the condenser plate body is circular, and an extension portion is provided on the condenser plate body extending radially outwardly, a matching hole is provided on the extension portion, and a matching column matching with the matching hole is provided on the filter housing.

[0012] Optionally, the filter housing is provided with an air inlet channel, a second air inlet port and a second exhaust port, an air inlet filter is provided in the air inlet channel, the second air inlet port and the second exhaust port are both connected to the air inlet channel, the second air inlet port is used to connect to the pneumoperitoneum machine, and the second exhaust port is used to connect to the abdominal cavity.

[0013] The present application also provides an insufflator with a heating function, comprising an insufflator body and the insufflator filter, wherein the insufflator filter is arranged in the insufflator body.

[0014] Optionally, an air inlet channel is provided in the filter housing, a heating channel connected to the air inlet channel is provided in the insufflator body, a heating device and a fuse are provided in the heating channel; a temperature sensor is provided in the insufflator body, and the temperature sensor is used to detect the temperature in the heating channel.

[0015] Optionally, a pressure measuring channel is provided in the filter housing, and a first connecting port and a second connecting port are provided on the filter housing, the first connecting port and the second connecting port are both connected to the pressure measuring channel, the first connecting port is used to connect to the abdominal cavity, and the second connecting port is used to connect to the pneumoperitoneum machine; a pressure sensor is provided in the pneumoperitoneum machine body, and the pressure sensor is used to detect the pressure in the pressure measuring channel.

[0016] The beneficial effects of the filter for an insufflator and the insufflator with a heating function provided in the embodiments of the present application include, for example: in order to prevent liquid from entering the insufflator, a filter for an insufflator is designed, the filter including a filter housing, a smoke exhaust filter element, a condensation plate and a floating plate, the filter housing is provided with a smoke exhaust channel, a first air inlet and a first exhaust port, the first air inlet and the first exhaust port are both connected to the smoke exhaust channel, the first air inlet is used to connect to the abdominal cavity, and the first exhaust port is used to connect to the insufflator; the smoke exhaust filter element is arranged in the smoke exhaust channel; the condensation plate is arranged in the smoke exhaust channel, the condensation plate is closer to the first air inlet than the smoke exhaust filter element, a smoke collecting cavity connected to the smoke exhaust channel is provided on the condensation plate, an exhaust hole is provided on the condensation plate, one end of the exhaust hole is connected to the smoke collecting cavity, and the other end of the exhaust hole faces the smoke exhaust filter element; the floating plate is arranged in the smoke collecting cavity, and the floating plate is used to close the exhaust hole during the floating process.

[0017] During the smoke exhaust process, the filter connects the first air inlet to the abdominal cavity and the first exhaust port to the insufflator. The smoke generated in the abdominal cavity will enter the smoke exhaust channel through the first air inlet. The water vapor carried in the smoke will form water droplets on the surface of the condensation plate and accumulate in the smoke exhaust channel. The physiological saline and body fluids inhaled by the insufflator will also accumulate in the smoke exhaust channel. When the liquid in the smoke exhaust channel accumulates and enters the smoke collecting cavity and causes the float plate to float to close the exhaust hole, the liquid cannot flow into the insufflator, thereby protecting the insufflator. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is a schematic diagram of a filter for a pneumoperitoneum machine in an embodiment of the present application; Figure 2 A cross-sectional view of a filter for a pneumoperitoneum machine in an embodiment of the present application; Figure 3 A partial exploded view of a filter for a pneumoperitoneum machine in an embodiment of the present application; Figure 4 This is a schematic diagram of a condensation plate from a first viewing angle in an embodiment of the present application; Figure 5 Schematic diagram of the second viewing angle of the condensation plate in the embodiment of the present application.

[0020] Icons: 1-filter housing; 11-smoke exhaust channel; 111-water accumulation chamber; 112-exhaust chamber; 12-cavity; 121-matching column; 13-first end cover; 131-first air inlet; 132-second exhaust port; 133-first connecting port; 14-second end cover; 141-first exhaust port; 142-second air inlet; 143-second connecting port; 15-intake channel; 151-intake filter element; 16-pressure measuring channel; 2-smoke exhaust filter element; 3-condensing plate; 31-condensing plate body; 311-exhaust hole; 312-groove; 313-sealing ring; 314-extension; 3141-matching hole; 32-intake hood; 321-through hole; 33-smoke collecting chamber; 4-floating plate. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0023] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0024] In the description of the present application, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear to indicate an orientation or position relationship, it is based on the orientation or position relationship shown in the drawings, or is the orientation or position relationship in which the product of the invention is usually placed when used. It is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0025] In addition, the terms “first”, “second”, etc., if used, are merely used to distinguish between the descriptions and should not be understood as indicating or implying relative importance.

[0026] It should be noted that, in the absence of conflict, the features in the embodiments of the present application may be combined with each other.

[0027] As disclosed in the background technology section, the smoke generated during the operation will produce water vapor in the smoke exhaust channel. In addition, during the process of recovering the smoke, the patient's saline, body fluids and other liquids may also be sucked into the smoke exhaust channel. Since the internal space of the smoke exhaust channel is limited, once the volume of the liquid sucked back during the operation is greater than the volume of the smoke exhaust channel, the liquid may enter the pneumoperitoneum machine and damage the pneumoperitoneum machine, thereby making the operation impossible, and even causing harm to the patient in severe cases. The embodiments of the present application provide a filter for a pneumoperitoneum machine, which is at least used to solve the above technical problems.

[0028] Please refer to Figure 1-Figure 5 The filter for the insufflator provided in the embodiment of the present application includes a filter housing 1, a smoke exhaust filter element 2, a condensing plate 3 and a floating plate 4. The filter housing 1 is provided with a smoke exhaust channel 11, a first air inlet 131 and a first exhaust port 141. The first air inlet 131 and the first exhaust port 141 are both connected to the smoke exhaust channel 11. The first air inlet 131 is used to connect to the abdominal cavity, and the first exhaust port 141 is used to connect to the insufflator; the smoke exhaust filter element 2 is arranged in the smoke exhaust channel 11; the condensing plate 3 is arranged in the smoke exhaust channel 11, and the condensing plate 3 is closer to the first air inlet 131 than the smoke exhaust filter element 2. A smoke collecting cavity 33 connected to the smoke exhaust channel 11 is provided on the condensing plate 3, and an exhaust hole 311 is provided on the condensing plate 3. One end of the exhaust hole 311 is connected to the smoke collecting cavity 33, and the other end of the exhaust hole 311 faces the smoke exhaust filter element 2; the floating plate 4 is arranged in the smoke collecting cavity 33, and the floating plate 4 is used to close the exhaust hole 311 during the floating process.

[0029] The filter housing 1 comprises a cavity 12 , a first end cover 13 and a second end cover 14 . The cavity 12 is substantially cylindrical. The first end cover 13 and the second end cover 14 are respectively fixed to two ends of the cavity 12 by welding.

[0030] The first air inlet 131 is provided at the first end cover 13, and the first exhaust port 141 is provided at the second end cover 14. During normal smoke exhaust, the smoke in the abdominal cavity enters the smoke exhaust channel 11 through the first air inlet 131, and then is discharged to the smoke exhaust filter element 2 through the smoke collecting cavity 33 and the exhaust hole 311 for filtration. The filtered gas is then discharged to the pneumoperitoneum machine through the first exhaust port 141.

[0031] During the smoke exhaust process, the filter connects the first air inlet 131 to the abdominal cavity and the first exhaust port 141 to the insufflator. The smoke generated in the abdominal cavity will enter the smoke exhaust channel 11 through the first air inlet 131, and the water vapor carried in the smoke will form water droplets on the surface of the condensation plate 3 and accumulate in the smoke exhaust channel 11. The physiological saline and body fluids inhaled by the insufflator will also accumulate in the smoke exhaust channel 11. When the liquid in the smoke exhaust channel 11 accumulates and enters the smoke collecting cavity 33 and causes the float plate 4 to float to the closed exhaust hole 311, the liquid cannot flow into the insufflator, thereby protecting the insufflator. At this time, the smoke cannot reach the smoke exhaust filter element 2 through the exhaust hole 311, and no gas flows into the insufflator, resulting in the insufflator's gas circulation function cannot operate normally, and the insufflator will prompt to replace the filter.

[0032] In this embodiment, the condensation plate 3 includes a condensation plate body 31 and an air intake hood 32 arranged on the condensation plate body 31, and a smoke collecting chamber 33 is formed between the air intake hood 32 and the condensation plate body 31. A plurality of through holes 321 are opened on the air intake hood 32. The smoke collecting chamber 33 is connected to the smoke exhaust channel 11 through the plurality of through holes 321, and an exhaust hole 311 is opened on the condensation plate body 31.

[0033] The air inlet cover 32 is disposed on the plate surface of the condensing plate body 31 facing the first air inlet 131 , and a smoke receiving chamber 33 is formed between the air inlet cover 32 and the condensing plate body 31 .

[0034] As the liquid in the smoke exhaust channel 11 gradually accumulates, the liquid will enter the smoke collecting chamber 33 through the multiple through holes 321, causing the float plate 4 in the smoke collecting chamber 33 to float until the float plate 4 closes the exhaust hole 311. At this time, neither the smoke nor the liquid can flow to the rear end of the insufflator.

[0035] In this embodiment, the thickness direction of the floating plate 4 is consistent with the thickness direction of the condensing plate body 31 , and the thickness of the floating plate 4 is less than or equal to the width of the smoke receiving cavity 33 along the thickness direction of the floating plate 4 .

[0036] The shape of the floating plate 4 matches that of the smoke collecting chamber 33 , and the thickness of the floating plate 4 is less than or equal to the width of the smoke collecting chamber 33 along the thickness direction of the floating plate 4 , so that the floating plate 4 can float up quickly when subjected to buoyancy and is not easily stuck due to friction with the inside of the smoke collecting chamber 33 .

[0037] In this embodiment, the condensation plate 3 divides the smoke exhaust channel 11 into a water accumulation chamber 111 and an exhaust chamber 112. The water accumulation chamber 111 is connected to the first air inlet 131, and the exhaust chamber 112 is connected to the first exhaust port 141. The air inlet hood 32 is located in the water accumulation chamber 111, and the smoke exhaust filter element 2 is arranged in the exhaust chamber 112.

[0038] The water accumulation chamber 111 and the exhaust chamber 112 are connected through the exhaust hole 311 on the condensation plate body 31. When the exhaust hole 311 is closed by the floating plate 4, the water accumulation chamber 111 and the exhaust chamber 112 are no longer connected, and smoke and liquid cannot flow to the pneumoperitoneum machine at the rear end.

[0039] During the smoke exhaust process of the filter, the smoke generated in the abdominal cavity will enter the water accumulation chamber 111 through the first air inlet 131, and the water vapor carried in the smoke will form water droplets on the surface of the condensation plate body 31 and accumulate in the water accumulation chamber 111. The physiological saline and body fluids inhaled by the insufflator will also accumulate in the water accumulation chamber 111. When the liquid in the water accumulation chamber 111 accumulates and enters the smoke collecting chamber 33 and causes the float plate 4 to float to the closed exhaust hole 311, the liquid cannot flow into the insufflator, and at this time the smoke cannot pass through the exhaust hole 311 to reach the smoke exhaust filter element 2, and the insufflator will prompt to replace the filter.

[0040] In this embodiment, a groove 312 is provided on the outer side of the condensation plate body 31 . A sealing ring 313 is provided in the groove 312 . The sealing ring 313 abuts against the inner wall of the smoke exhaust passage 11 .

[0041] The groove 312 is an annular groove, and the sealing ring 313 is embedded in the groove 312 . The sealing ring 313 abuts against the inner wall of the smoke exhaust channel 11 , which can effectively prevent the liquid from flowing from the edge of the condensing plate body 31 to the smoke exhaust filter element 2 .

[0042] In this embodiment, the condensing plate body 31 is circular, and an extension portion 314 is provided along its radial outward extension. The extension portion 314 is provided with a matching hole 3141 , and the filter housing 1 is provided with a matching column 121 matching with the matching hole 3141 .

[0043] A matching column 121 matching with the matching hole 3141 is provided in the cavity 12 of the filter housing 1 . The matching hole 3141 on the extension portion 314 is interference fit with the matching column 121 in the cavity 12 , so that the condensation plate 3 and the filter housing 1 are relatively fixed.

[0044] In other embodiments, the matching hole 3141 is opened on the cavity 12, and the matching column 121 is disposed on the extension portion 314; or, the condensation plate body 31 and the cavity 12 can also be fixed by bonding, screwing, etc.

[0045] In this embodiment, the filter housing 1 is provided with an air inlet channel 15, a second air inlet port 142 and a second air exhaust port 132. An air inlet filter element 151 is provided in the air inlet channel 15. The second air inlet port 142 and the second air exhaust port 132 are both connected to the air inlet channel 15. The second air inlet port 142 is used to connect to the pneumoperitoneum machine, and the second air exhaust port 132 is used to connect to the abdominal cavity.

[0046] The second air inlet 142 is disposed on the second end cover 14 , and the second air outlet 132 is disposed on the first end cover 13 .

[0047] During the air intake process, the filter connects the second air inlet 142 with the pneumoperitoneum machine and the second air outlet 132 with the abdominal cavity. Gas is then input through the pneumoperitoneum machine, and the gas enters the air inlet channel 15 through the second air inlet 142. The gas is filtered by the air intake filter 151 and then discharged to the abdominal cavity through the second air outlet 132 to establish pneumoperitoneum.

[0048] An embodiment of the present application further provides an insufflator with a heating function, comprising an insufflator body and the above-mentioned insufflator filter, wherein the insufflator filter is disposed in the insufflator body.

[0049] A heating channel (not shown) connected to the air inlet channel 15 is arranged in the body of the insufflator, and a heating device and a fuse are arranged in the heating channel; a temperature sensor is arranged in the body of the insufflator, and the temperature sensor is used to detect the temperature in the heating channel.

[0050] The heating channel is communicated with the second air inlet 142. A controller is also provided in the body of the pneumoperitoneum machine. The controller is electrically connected to the heating device and is used to control the heating device to heat the gas so as to deliver gas of suitable temperature into the abdominal cavity.

[0051] The controller is electrically connected to the temperature sensor to obtain the temperature in the heating channel. When the temperature in the heating channel is detected to be low, the heating device is controlled to turn on. The heating device can be selected as an electric heating wire, etc., which is not limited to this.

[0052] The fuse melts when the temperature in the heating channel is too high to prevent the insufflator from delivering gas to the air inlet channel 15 through the heating channel. When the temperature sensor fails, the fuse can play an effective protective role.

[0053] A pressure measuring channel 16 is provided in the filter housing 1. A first connecting port 133 and a second connecting port 143 are provided on the filter housing 1. The first connecting port 133 and the second connecting port 143 are both connected to the pressure measuring channel 16. The first connecting port 133 is used to connect to the abdominal cavity, and the second connecting port 143 is used to connect to the pneumoperitoneum machine. A pressure sensor is provided in the pneumoperitoneum machine body, and the pressure sensor is used to detect the pressure in the pressure measuring channel 16.

[0054] The first communication port 133 and the second communication port 143 are respectively provided on the first end cover 13 and the second end cover 14. The first communication port 133 and the second communication port 143 are respectively connected to the abdominal cavity and the pneumoperitoneum machine through a connecting tube. The pressure sensor can be provided on the connecting tube to detect the pressure in the pressure measuring channel 16 in real time, so as to obtain the pressure in the abdominal cavity. The controller is electrically connected to the pressure sensor to obtain the pressure in the pressure measuring channel 16.

[0055] It should be noted that the first air inlet 131 and the abdominal cavity, the first air outlet 141 and the insufflator, the second air inlet 142 and the insufflator, and the second air outlet 132 and the abdominal cavity can all be connected through connecting pipes.

[0056] During the pressure measurement process, the filter connects the first connecting port 133 to the abdominal cavity and the second connecting port 143 to the pneumoperitoneum machine. The pressure sensor can detect the pressure in the abdominal cavity in real time, and the controller adjusts the pressure according to the pressure value.

[0057] The working principle of a filter for a pneumoperitoneum machine provided in the embodiment of the present application includes: During the smoke exhaust process, the filter connects the first air inlet 131 to the abdominal cavity and the first exhaust port 141 to the insufflator. The smoke generated in the abdominal cavity will enter the water accumulation chamber 111 through the first air inlet 131, and the water vapor carried in the smoke will form water droplets on the surface of the condensation plate 3 and accumulate in the water accumulation chamber 111. The physiological saline and body fluids inhaled by the insufflator will also accumulate in the water accumulation chamber 111. When the liquid in the water accumulation chamber 111 accumulates and enters the smoke collecting chamber 33 and causes the float plate 4 to float to the closed exhaust hole 311, the liquid cannot flow into the insufflator, thereby protecting the insufflator. At this time, the smoke cannot reach the smoke exhaust filter element 2 through the exhaust hole 311, and no gas flows into the insufflator, resulting in the insufflator's gas circulation function cannot operate normally, and the insufflator will prompt to replace the filter.

[0058] During the air intake process, the filter connects the second air inlet 142 to the pneumoperitoneum machine, and the second air outlet 132 to the abdominal cavity. Then, the air is input through the pneumoperitoneum machine, and the air enters the air inlet channel 15 through the second air inlet 142. The air is filtered by the air inlet filter 151 and then discharged to the abdominal cavity through the second air outlet 132 to establish pneumoperitoneum. When it is necessary to heat the gas, the heating device is turned on to heat the gas entering the heating channel, and the heated gas is transported to the abdominal cavity through the air inlet channel 15 to transport gas of a suitable temperature into the abdominal cavity.

[0059] During the pressure measurement process, the filter connects the first communication port 133 to the abdominal cavity and the second communication port 143 to the pneumoperitoneum machine, so that the pressure sensor can detect the pressure in the abdominal cavity in real time through the pressure measurement channel 16 .

[0060] In summary, the embodiments of the present application provide a filter for an insufflator and an insufflator with a heating function. During the smoke exhaust process, the smoke generated in the abdominal cavity will enter the smoke exhaust channel 11 through the first air inlet 131, and the water vapor carried in the smoke will form water droplets on the surface of the condensation plate 3 and accumulate in the smoke exhaust channel 11. The physiological saline and body fluids inhaled by the insufflator will also accumulate in the smoke exhaust channel 11. When the liquid in the smoke exhaust channel 11 accumulates into the smoke collecting cavity 33 and causes the float plate 4 to float to the closed exhaust hole 311, the liquid cannot flow into the insufflator, thereby protecting the insufflator.

[0061] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A filter for an insufflator, characterized in that: include: A filter housing (1), the filter housing (1) being provided with a smoke exhaust passage (11), a first air inlet (131) and a first air outlet (141), the first air inlet (131) and the first air outlet (141) both being connected to the smoke exhaust passage (11), the first air inlet (131) being used for connecting to the abdominal cavity, and the first air outlet (141) being used for connecting to a pneumoperitoneum machine; A smoke exhaust filter element (2), the smoke exhaust filter element (2) being arranged in the smoke exhaust channel (11); a condensing plate (3), the condensing plate (3) being arranged in the smoke exhaust passage (11), the condensing plate (3) being closer to the first air inlet (131) than the smoke exhaust filter element (2), the condensing plate (3) being provided with a smoke collecting cavity (33) connected to the smoke exhaust passage (11), the condensing plate (3) being provided with an exhaust hole (311), one end of the exhaust hole (311) being connected to the smoke collecting cavity (33), and the other end of the exhaust hole (311) being directed toward the smoke exhaust filter element (2); A floating plate (4), the floating plate (4) being arranged in the smoke collecting chamber (33), the floating plate (4) being used to close the exhaust hole (311) during the floating process.

2. The filter for pneumoperitoneum machine according to claim 1, characterized in that: The condensing plate (3) comprises a condensing plate body (31) and an air inlet hood (32) arranged on the condensing plate body (31); the smoke collecting chamber (33) is formed between the air inlet hood (32) and the condensing plate body (31); a plurality of through holes (321) are provided on the air inlet hood (32); the smoke collecting chamber (33) is connected to the smoke exhaust channel (11) through the plurality of through holes (321); and the exhaust hole (311) is provided on the condensing plate body (31).

3. The filter for pneumoperitoneum machine according to claim 2, characterized in that: The thickness direction of the floating plate (4) is consistent with the thickness direction of the condensing plate body (31), and the thickness of the floating plate (4) is less than or equal to the width of the smoke collecting cavity (33) along the thickness direction of the floating plate (4).

4. The filter for pneumoperitoneum machine according to claim 2, characterized in that: The condensation plate (3) divides the smoke exhaust channel (11) into a water accumulation chamber (111) and an exhaust chamber (112); the water accumulation chamber (111) is connected to the first air inlet (131); the exhaust chamber (112) is connected to the first exhaust port (141); the air inlet cover (32) is located in the water accumulation chamber (111); and the smoke exhaust filter element (2) is arranged in the exhaust chamber (112).

5. The filter for pneumoperitoneum machine according to claim 2, characterized in that: The outer side surface of the condensing plate body (31) is provided with a groove (312), a sealing ring (313) is arranged in the groove (312), and the sealing ring (313) abuts against the inner wall of the smoke exhaust channel (11).

6. The filter for pneumoperitoneum machine according to claim 2, characterized in that: The condensing plate body (31) is circular, and is provided with an extension portion (314) extending radially outward from the condensing plate body (31), a matching hole (3141) is provided on the extension portion (314), and a matching column (121) matching with the matching hole (3141) is provided on the filter housing (1).

7. The filter for pneumoperitoneum machine according to claim 1, characterized in that: The filter housing (1) is provided with an air intake channel (15), a second air intake port (142) and a second air exhaust port (132); an air intake filter element (151) is provided in the air intake channel (15); the second air intake port (142) and the second air exhaust port (132) are both connected to the air intake channel (15); the second air intake port (142) is used to communicate with a pneumoperitoneum machine; and the second air exhaust port (132) is used to communicate with the abdominal cavity.

8. A pneumoperitoneum machine with heating function, characterized in that: It comprises an insufflator body and a filter for an insufflator according to any one of claims 1 to 7, wherein the filter for an insufflator is arranged in the insufflator body; An air inlet passage (15) is provided in the filter housing (1), a heating passage connected to the air inlet passage (15) is provided in the insufflator body, a heating device and a fuse are provided in the heating passage; a temperature sensor is provided in the insufflator body, and the temperature sensor is used to detect the temperature in the heating passage.

9. The pneumoperitoneum machine according to claim 8, characterized in that: A pressure measuring channel (16) is provided in the filter housing (1), and a first connecting port (133) and a second connecting port (143) are provided on the filter housing (1); the first connecting port (133) and the second connecting port (143) are both connected to the pressure measuring channel (16); the first connecting port (133) is used to connect to the abdominal cavity, and the second connecting port (143) is used to connect to the pneumoperitoneum machine; a pressure sensor is provided in the pneumoperitoneum machine body, and the pressure sensor is used to detect the pressure in the pressure measuring channel (16).

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