Pneumoperitoneum box for simulating abdominal surgery

Abstract

The invention discloses a pneumoperitoneum box for simulating an abdominal cavity operation, and relates to the field of medical experiments, the pneumoperitoneum box comprises a bearing assembly, a fixing part and an air supply assembly, the bearing assembly serves as a platform for simulating the abdominal cavity operation and is used for bearing simulated skin, the bearing assembly comprises a bearing box, and the bearing box is provided with a simulation cavity for bearing simulated viscera; the fixing piece is arranged on the outer side of the bearing assembly, the fixing piece is used for fixing the simulation skin on the outer side of the simulation cavity, and the simulation cavity is isolated from the outside through the simulation skin; according to the pneumoperitoneum box for simulating the abdominal surgery, the fixing frame is rotationally connected with the bearing box through the transmission part, the fixing frame and the bearing box can be connected or separated through the locking assembly, the simulated skin and the pneumoperitoneum box can be fixed or separated through connection or separation of the fixing frame and the bearing box, and the speed of replacing the simulated skin is increased; no additional filler is arranged between the simulated skin and the pneumoperitoneum box, so that cleaning is not needed, and the process of replacing the simulated skin is simplified.

Description

Technical Field

[0001] The invention relates to medical experimental technology, in particular to a pneumoperitoneum box used for simulating abdominal surgery. Background Art

[0002] Minimally invasive surgery is the development direction of modern surgery, and laparoscopic technology is one of its representative technologies. CO2 pneumoperitoneum, as the basis of abdominal surgery, has always been the focus of laparoscopic technology research. The CO2 pneumoperitoneum machine is the main equipment for artificial pneumoperitoneum. It uses the CO2 pneumoperitoneum machine to infuse medical CO2 gas into the abdominal cavity, and uses the gas to separate the abdominal cavity from the abdominal organs to form a local surgical operation space. When the predetermined pressure is reached, the CO2 pneumoperitoneum machine can automatically stop supplying gas and maintain a certain amount of gas to keep the abdominal cavity within the set pressure range. The pneumoperitoneum box can create and maintain a gas-filled abdominal environment in medical research and surgical simulation, especially in the field of laparoscopic surgery.

[0003] When using the existing pneumoperitoneum box for simulating abdominal surgery, the medical CO2 atomization process usually adopts the method of first atomizing the CO2 gas and then heating the atomized CO2 gas, or first heating the CO2 gas and then atomizing the heated CO2 gas to obtain moist hot CO2. However, since the specific heat capacity of water is greater than that of CO2 gas, it takes a long time to heat the moist hot CO2 gas obtained by the method of first atomizing and then heating. When the method of first heating the CO2 gas and then atomizing is adopted, the atomized liquid will absorb the heat of the CO2 gas, so the temperature of the moist hot CO2 gas obtained is difficult to control, and both methods require an additional set of temperature control devices to maintain the temperature in the pneumoperitoneum box in order to meet the temperature control requirements during the experiment.

[0004] After the pneumoperitoneum box is used in a simulated surgery, the simulated skin is punctured and the sealing cannot be guaranteed during the next simulated use. Therefore, it needs to be replaced in time. However, the existing technology uses bolts or double-sided tape to fix the simulated skin to the pneumoperitoneum box. However, when using bolts to fix, the bolts need to be passed through the simulated skin in turn to fix the simulated skin to the pneumoperitoneum box, and replacement and disassembly are complicated. When using double-sided tape to fix, the double-sided tape needs to be cleaned when replacing, which increases the time and complexity of replacing the simulated skin. Summary of the invention

[0005] The purpose of the present invention is to provide a pneumoperitoneum box for simulating abdominal surgery to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above-mentioned object, the present invention provides the following technical solution: an insufflation box for simulating abdominal surgery, comprising a bearing component, a fixing component and an air supply component:

[0007] The bearing assembly serves as a platform for simulating abdominal surgery and is used to bear simulated skin. The bearing assembly comprises a bearing box, and the bearing box is provided with a simulated cavity for bearing simulated internal organs.

[0008] A fixing member, which is arranged outside the bearing assembly, and is used to fix the simulated skin outside the simulation cavity, and the simulated skin isolates the simulation cavity from the outside, and the fixing member includes a fixing frame adapted to the outer contour of the simulation cavity, one side of the fixing frame is rotatably connected to the bearing box through a transmission member, and the fixing frame is connected to the bearing box through a locking assembly;

[0009] An air supply assembly is arranged on one side of the carrying box, and is used to supply air into the simulation cavity and separate the simulated internal organs from the simulated skin. The air supply assembly includes a temperature control assembly for adjusting the temperature of the simulation cavity, and the temperature control assembly is used to heat water to a predetermined temperature. The temperature control assembly is also used to heat the gas input into the simulation cavity to a predetermined temperature and maintain a stable temperature state after reaching the temperature. The air supply assembly also includes an atomization assembly and a mixing assembly, and the atomization assembly atomizes the water heated by the temperature control assembly and mixes it with the gas in the mixing assembly.

[0010] Furthermore, the transmission member comprises:

[0011] Two symmetrically arranged adjustment blocks are fixedly installed on the outside of the carrying box, and circular holes are opened on opposite sides of the two adjustment blocks;

[0012] The two eccentric wheels are rotatably mounted on the inner walls of the circular holes opened in the two adjusting blocks respectively;

[0013] The two ends of the rotating pin are respectively fixedly connected to one side of the two eccentric wheels which deviates from the geometric center.

[0014] Furthermore, the locking member comprises:

[0015] A bearing column, which is fixedly mounted on the outside of the bearing box and away from the transmission member;

[0016] A locking block is sleeved on the outside of the bearing column and can rotate around the axis of the bearing column;

[0017] Two symmetrically arranged clamping wheels are provided with pins far away from the geometric center and are rotatably connected to the bearing column through the pins, and the clamping wheels are located above the locking block;

[0018] The ends of the force ring are respectively fixedly connected to the outer sides of the two clamping wheels, and the force ring is used to increase the power arm when the clamping wheels are rotated.

[0019] Furthermore, the air supply assembly further comprises:

[0020] An air supply box is fixedly installed inside the carrying box, and one side of the air supply box is located inside the simulation cavity;

[0021] A water storage tank is arranged inside the air supply box, and the outer side of the water storage tank is fixedly connected to the air supply box, and the water storage tank is used to store water;

[0022] The input pipe is fixedly installed on one side of the air supply box and is provided with a switch valve.

[0023] Furthermore, the atomization assembly includes an atomization box arranged inside the air supply box, an atomizer is fixedly installed in the inner cavity of the atomization box, the atomizer is connected to the inner cavity of the water storage tank through a connecting pipe, and the atomizer atomizes the water in the water storage tank.

[0024] Further, the mixing assembly comprises:

[0025] A mixing box is arranged inside the air supply box, and the mixing box is connected to the output end of the atomizer arranged in the atomization box;

[0026] A partition plate is fixedly mounted on the inner cavity of the mixing box and divides the mixing box into two upper and lower chambers. The lower chamber of the mixing box is connected to the inner cavity of the input pipe. The partition plate is penetrated by a channel connecting the upper and lower chambers.

[0027] The one-way valve assembly is arranged on the top of the partition plate and can block the communication channel opened by the partition plate.

[0028] Furthermore, the temperature control component includes:

[0029] A heating resistor is arranged in the inner cavity of the water storage tank;

[0030] A fixed bracket, one side of which is fixedly mounted on the inner wall of the water storage tank, the fixed bracket is sleeved on the outside of the heating resistor, and the fixed bracket fixes the heating resistor in the inner cavity of the water storage tank;

[0031] A plurality of heat-conducting rods are arranged in a linear array in the inner cavity of the water storage tank, and the plurality of heat-conducting rods sequentially penetrate the water storage tank and the air supply tank and extend to the simulation cavity;

[0032] A heat conducting plate is fixedly installed on the outside of the air supply box, and one side of the heat conducting plate is fixedly connected to a plurality of heat conducting rods, and the heat conducting plate is also located in the simulation cavity;

[0033] A plurality of fans are distributed in a linear array and fixedly installed on a side of the heat conducting plate away from the water tank.

[0034] Furthermore, the one-way valve assembly comprises:

[0035] Two fixing blocks are symmetrically fixed on the top of the partition plate;

[0036] The transmission pin has two ends fixedly mounted on the sides of the two fixing blocks close to each other;

[0037] A connecting block is sleeved on the outside of the driving pin, and the connecting block is rotatably connected to the driving pin;

[0038] Two torsion springs are symmetrically sleeved on the outside of the transmission pin, and one end of the torsion spring is fixedly connected to the connecting block, and the other end is fixedly connected to the fixing block;

[0039] The sealing plate is fixedly installed on one side of the connecting block and is located at the top of the communicating channel opened by the dividing plate.

[0040] Furthermore, a filling piece is arranged on the outside of the carrying box, and the filling piece includes a water filling pipe extending to the inner cavity of the water storage tank, a check valve is arranged on the inside of the water filling pipe, and a detachable cover is arranged on the top of the water filling pipe.

[0041] Furthermore, a gas output pipe is fixedly installed on the outside of the air supply box, the inner cavity of the gas output pipe is connected to the upper chamber of the mixing box, and a temperature and humidity detector connected to the upper chamber of the mixing box is also arranged on the outside of the air supply box.

[0042] Compared with the prior art, the pneumoperitoneum box for simulating abdominal surgery provided by the present invention heats water to a predetermined temperature through a temperature control component and then atomizes it through an atomization component, and finally mixes it with CO2 gas in a mixing component to obtain humid and hot CO2 gas. The specific heat capacity of water is greater than that of CO2 gas, so the temperature will not drop too much during mixing, thereby improving the control of the temperature of the humid and hot CO2 gas after mixing. At the same time, the temperature control component can also transfer heat to the simulation cavity to maintain the temperature of the simulation cavity constant, thereby simplifying the structure of the device.

[0043] The fixing frame is rotatably connected to the carrying box through a transmission member, and the locking assembly can connect or separate the fixing frame and the carrying box. The connection or separation of the fixing frame and the carrying box can fix or separate the simulated skin from the insufflature box, thereby increasing the speed of replacing the simulated skin. There is no additional filler between the simulated skin and the insufflature box, so there is no need for cleaning, thereby simplifying the process of replacing the simulated skin. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0045] Figure 1 A schematic diagram of the overall structure provided by an embodiment of the present invention;

[0046] Figure 2 A partial cross-sectional view of a load-bearing box and a schematic diagram of a fixing structure provided by an embodiment of the present invention;

[0047] Figure 3 A partial cross-sectional view of a load-bearing box and a schematic diagram of the structure of some fixing parts provided in an embodiment of the present invention;

[0048] Figure 4 The embodiment of the present invention provides Figure 3 A magnified view of middle;

[0049] Figure 5 A first schematic diagram of a local structure provided by an embodiment of the present invention;

[0050] Figure 6 A bottom cross-sectional schematic diagram provided for an embodiment of the present invention;

[0051] Figure 7 A schematic front cross-sectional view of an embodiment of the present invention;

[0052] Figure 8 A schematic diagram of a local structure provided by an embodiment of the present invention;

[0053] Fig. 9 A schematic cross-sectional view of a local structure provided by an embodiment of the present invention;

[0054] Fig.10 A schematic cross-sectional view of a filling piece provided in an embodiment of the present invention;

[0055] Fig.11 A schematic diagram of the structure of a heat conducting plate, a heat conducting rod, a heating resistor and a fixing bracket provided in an embodiment of the present invention;

[0056] Fig.12 A schematic structural diagram of a partition plate and a one-way valve assembly provided in an embodiment of the present invention.

[0057] Description of reference numerals:

[0058] 1. Carrying assembly; 2. Fixing parts; 3. Filling parts; 11. Carrying box; 12. Air supply box; 13. Heat conduction plate; 14. Fan; 15. Temperature and humidity detector; 16. Gas output pipe; 17. Input pipe; 18. Water storage tank; 19. Mixing box; 110. Atomizing box; 111. Atomizer; 112. Partition plate; 113. One-way valve assembly; 1131. Sealing plate; 1132. Connecting block; 1133. Torsion spring; 1134. Fixing block; 114. Heating resistor; 115. Heat conduction rod; 116. Fixing bracket; 21. Fixing bracket; 22. Adjusting block; 23. Locking block; 24. Rotating pin; 25. Eccentric wheel; 26. Force ring; 27. Carrying column; 28. Clamping wheel; 31. Cover; 32. Water injection pipe; 321. Check valve. DETAILED DESCRIPTION

[0059] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0060] Embodiment 1:

[0061] See also Figure 1-Figure 12 , an insufflation box for simulating abdominal surgery, comprising a bearing component 1, a fixing component 2 and an air supply component:

[0062] The carrying assembly 1 is used as a platform for simulating abdominal surgery and for carrying simulated skin. The carrying assembly 1 includes a carrying box 11, and the carrying box 11 is provided with a simulated cavity for carrying simulated internal organs;

[0063] The fixing member 2 is arranged outside the bearing assembly 1, and is used to fix the simulated skin outside the simulation cavity, and the simulated skin isolates the simulation cavity from the outside. The fixing member 2 includes a fixing frame 21 adapted to the outer contour of the simulation cavity, one side of the fixing frame 21 is rotatably connected to the bearing box 11 through a transmission member, and the fixing frame 21 is connected to the bearing box 11 through a locking assembly;

[0064] An air supply assembly is arranged on one side of the carrying box 11. The air supply assembly is used to supply air into the simulation cavity and separate the simulated internal organs from the simulated skin. The air supply assembly includes a temperature control assembly for adjusting the temperature of the simulation cavity. The temperature control assembly is used to heat water to a predetermined temperature. The temperature control assembly is also used to heat the gas input into the simulation cavity to a predetermined temperature and maintain a stable temperature state after reaching the temperature. The air supply assembly also includes an atomization assembly and a mixing assembly. The atomization assembly atomizes the water heated by the temperature control assembly and mixes it with the gas in the mixing assembly.

[0065] The specific implementation is as follows: the bearing assembly 1 is the main part of the pneumoperitoneum box, which is a platform for simulating abdominal surgery. It mainly includes a bearing box 11, which is made of a strong and durable material to ensure that it can withstand various operations of the user during use. A simulation cavity is provided inside the bearing box 11. The size and shape of the simulation cavity are designed to accommodate simulated internal organs. The simulated internal organs can be soft materials of various shapes and sizes, which are used to simulate internal organs in real surgery. The fixing part 2 is used to fix the simulated skin on the outside of the simulation cavity, thereby forming a closed simulated abdominal cavity. The fixing part 2 includes a fixing frame 21 that adapts to the outer contour of the simulation cavity, and one side of the fixing frame 21 is connected by a transmission member. The fixing frame 21 is rotatably connected to the carrying box 11, which enables the fixing frame 21 to rotate around. When the simulated skin needs to be fixed, the user can rotate the fixing frame 21 to a position that fits the carrying box 11 and firmly connect it to the carrying box 11 through the locking assembly. The air supply assembly is arranged on one side of the carrying box 11, and is used to supply air to the simulation cavity and separate the simulated internal organs from the simulated skin to simulate the pneumoperitoneum effect in real surgery. The air supply assembly includes a temperature control assembly, which has two main functions: one is to heat the water to a predetermined temperature, and the other is to heat the gas input into the simulation cavity to the same predetermined temperature. When the predetermined temperature is reached, it will maintain a stable temperature state to ensure the accuracy and safety of the surgical simulation. The air supply assembly also includes an atomization assembly and a mixing assembly. The atomization assembly atomizes the water heated by the temperature control assembly into tiny water droplets, which then enter the mixing assembly and mix with the gas. The mixed gas and water droplets are sent into the simulation cavity together, further enhancing the realism of the surgical simulation.

[0066] Transmission parts include:

[0067] Two symmetrically arranged adjustment blocks 22 are fixedly installed on the outside of the carrying box 11, and circular holes are opened on opposite sides of the two adjustment blocks 22;

[0068] The two eccentric wheels 25 are rotatably mounted on the inner walls of the circular holes formed in the two adjusting blocks 22;

[0069] The two ends of the rotating pin 24 are respectively fixedly connected to one side of the two eccentric wheels 25 deviating from the geometric center.

[0070] The locking parts include:

[0071] A bearing column 27, which is fixedly mounted on the outside of the bearing box 11 and away from the side of the transmission member;

[0072] The locking block 23 is sleeved on the outside of the bearing column 27, and the locking block 23 can rotate around the axis of the bearing column 27;

[0073] Two symmetrically arranged clamping wheels 28 are provided with pins far away from the geometric center and are rotatably connected to the bearing column 27 through the pins, and the clamping wheels 28 are located above the locking block 23;

[0074] The ends of the force ring 26 are respectively fixedly connected to the outer sides of the two clamping wheels 28 . The force ring 26 is used to increase the power arm when the clamping wheels 28 are rotated.

[0075] The specific implementation is as follows: the transmission part is the part connecting the fixed frame 21 and the carrying box 11, and the transmission part allows the fixed frame 21 to rotate within a certain range. A circular hole is opened on the opposite side of the two adjustment blocks 22 for installing the eccentric wheel 25. The geometric center of the eccentric wheel 25 is not located on the rotating shaft. Therefore, when the eccentric wheel 25 rotates, it will drive the rotating pin 24 connected to it to perform non-uniform rotational movement. The fixed frame 21 and the rotating pin 24 are connected by any fixing method such as bonding or welding. When the fixed frame 21 is opened, the eccentric wheel 25 rotates to one side and the rotating pin 24 moves upward. At this time, the simulated skin is released from the restriction. When the fixed frame 21 is closed, the rotating pin 24 moves downward. At this time, the fixed frame 21 moves downward as a whole, so that the simulated skin better fits the carrying box 11.

[0076] The locking member is used to lock the fixing frame 21 on the carrying box 11 to ensure that no accidental movement occurs during the surgical simulation. The locking member mainly includes the following components:

[0077] The bearing column 27 is fixedly installed on the outer side of the bearing box 11 and away from the side of the transmission member. The bearing column 27 serves as a supporting structure for the locking block 23 and the clamping wheel 28. The locking block 23 is sleeved on the outer side of the bearing column 27 and can rotate around the axis of the bearing column 27. When the fixing frame 21 needs to be locked, the locking block 23 is rotated to the top of the fixing frame 21. When the limit of the fixing frame 21 needs to be released, the locking block 23 is rotated away from the top of the fixing frame 21. The clamping wheel 28 is rotatably connected to the bearing column 27 through a pin. The clamping wheel 28 is elliptical. When the clamping wheel 28 is acted upon by an external force, the locking block 23 can be pressed downward, thereby enhancing the locking stability. The ends of the force ring 26 are respectively fixedly connected to the outer sides of the two clamping wheels 28. The function of the force ring 26 is to increase the power arm when rotating the clamping wheel 28, so that the user can achieve the rotation of the clamping wheel 28 with less force, thereby achieving the locking or unlocking of the locking block 23.

[0078] The air supply assembly also includes:

[0079] An air supply box 12 is fixedly installed inside the carrying box 11, and one side of the air supply box 12 is located inside the simulation cavity;

[0080] A water storage tank 18 is disposed inside the air supply box 12, and the outer side of the water storage tank 18 is fixedly connected to the air supply box 12. The water storage tank 18 is used to store water;

[0081] The input pipe 17 is fixedly installed on one side of the air supply box 12, and the input pipe 17 is provided with a switch valve.

[0082] The atomizing assembly includes an atomizing box 110 disposed inside the air supply box 12 , an atomizer 111 is fixedly installed in the inner cavity of the atomizing box 110 , and the atomizer 111 is connected to the inner cavity of the water storage tank 18 through a connecting pipe, and the atomizer 111 atomizes the water in the water storage tank 18 .

[0083] The specific implementation is as follows: the air supply box 12 is fixedly installed inside the carrying box 11, and one side of the air supply box 12 is located on the inner side of the simulation cavity so as to maintain the temperature of the simulation cavity. The air supply box 12 is also made of sturdy and durable materials and has good sealing performance to prevent gas leakage. The water tank 18 is arranged inside the air supply box 12 to store the required amount of water. The outer side of the water tank 18 is fixed to the air supply box 12 by bolts, welding and other means to ensure its stability and sealing. The input pipe 17 is fixedly installed on one side of the air supply box 12, and the other end of the input pipe 17 is connected to the CO2 cylinder. The input pipe 17 is used to input gas into the air supply box 12. A switch valve is provided on the input pipe 17 to control the input and shutdown of the gas. The atomizer 111 is fixedly installed in the inner cavity of the atomizer box 110. Its function is to atomize the water in the water tank 18 and inject the atomized water into the mixing box 19. The atomizer 111 is electrically connected to an external power supply and is also controlled by an external PLC programming program. The atomizer 111 is a medical atomizer.

[0084] The hybrid components include:

[0085] A mixing box 19 is disposed inside the air supply box 12, and the mixing box 19 is connected to an output end of an atomizer 111 disposed in the atomization box 110;

[0086] The partition plate 112 is fixedly mounted on the inner cavity of the mixing box 19 and divides the mixing box 19 into two upper and lower chambers. The lower chamber of the mixing box 19 is connected to the inner cavity of the input pipe 17. The partition plate 112 is penetrated to open a channel connecting the upper and lower chambers;

[0087] The one-way valve assembly 113 is disposed on the top of the partition plate 112 and is capable of blocking the communication channel opened by the partition plate 112 .

[0088] The specific implementation method is as follows: when the gas is atomized and mixed, the gas to be mixed is first input into the lower chamber of the mixing box 19 through the input pipe 17. At the same time, the atomizer 111 starts to work, converts the liquid into tiny droplets and inputs them into the lower chamber of the mixing box 19 for mixing. At this time, the one-way valve assembly 113 is in a closed state, ensuring that the gas in the lower chamber will not enter the upper chamber in advance. When the gas in the lower chamber reaches a certain pressure or amount, the one-way valve assembly 113 automatically opens, allowing the gas in the lower chamber to enter the upper chamber through the channel on the partition plate 112, and the mixed gas and droplets can be output through the gas output pipe 16.

[0089] The temperature control components include:

[0090] A heating resistor 114 is disposed in the inner cavity of the water storage tank 18;

[0091] A fixed bracket 116, one side of which is fixedly mounted on the inner wall of the water storage tank 18, and the fixed bracket 116 is sleeved on the outside of the heating resistor 114, and the fixed bracket 116 fixes the heating resistor 114 in the inner cavity of the water storage tank 18;

[0092] A plurality of heat conducting rods 115 are arranged in a linear array in the inner cavity of the water storage tank 18, and the plurality of heat conducting rods 115 sequentially penetrate the water storage tank 18 and the air supply box 12 and extend to the simulation cavity;

[0093] A heat conducting plate 13 is fixedly mounted on the outside of the air supply box 12, and one side of the heat conducting plate 13 is fixedly connected to a plurality of heat conducting rods 115, and the heat conducting plate 13 is also located in the simulation cavity;

[0094] A plurality of fans 14 are distributed in a linear array and fixedly installed on a side of the heat conducting plate 13 away from the water storage tank 18 .

[0095] The specific implementation is as follows: when the liquid in the water tank 18 needs to be heated, the heating resistor 114 starts working, generates heat to heat the liquid in the water tank 18, and raises the temperature of the liquid. The heat is also transferred to the air supply box 12 and the simulation cavity through the heat conducting rod 115. The heat conducting rod 115 transfers the heat from the water tank 18 to the heat conducting plate 13, and then the heat conducting plate 13 transfers the heat to the gas in the simulation cavity. In order to accelerate the heat dissipation and achieve accurate control of the temperature in the simulation cavity, the fan 14 starts working to generate airflow, which takes away the heat on the heat conducting plate 13 and dissipates the heat to the environment through the air flow in the simulation cavity. By adjusting the power of the heating resistor 114 and the speed of the fan 14, the temperature in the simulation cavity can be accurately controlled to meet the needs of different experiments or applications.

[0096] The one-way valve assembly 113 includes:

[0097] Two fixing blocks 1134 are symmetrically fixedly mounted on the top of the partition plate 112;

[0098] The transmission pin, both ends of which are fixedly mounted on the sides of the two fixing blocks 1134 close to each other;

[0099] A connecting block 1132 is sleeved on the outside of the driving pin, and the connecting block 1132 is rotatably connected to the driving pin;

[0100] Two torsion springs 1133 are symmetrically sleeved on the outside of the transmission pin, and one end of the torsion spring 1133 is fixedly connected to the connecting block 1132, and the other end is fixedly connected to the fixing block 1134;

[0101] The sealing plate 1131 is fixedly installed on one side of the connecting block 1132 and is located at the top of the connecting channel opened by the partition plate 112 .

[0102] The specific implementation is as follows: the partition plate 112 can isolate the mixing box 19 into two cavities, and the transmission pin serves as the rotation axis of the connecting block 1132, so that the connecting block 1132 can rotate freely on the transmission pin, and the connecting block 1132 can drive the sealing plate 1131 to open and close. The torsion spring 1133 provides a reset force for the connecting block 1132, so that the sealing plate 1131 can automatically close the connecting channel when not affected by external force. The material and shape of the sealing plate 1131 can ensure that it fits tightly with the connecting channel, thereby effectively preventing the reverse flow of the fluid. When the hot and humid CO2 gas flows from the lower chamber to the upper chamber of the mixing box 19, the pressure of the fluid acts on the sealing plate 1131, causing the connecting block 1132 to rotate around the transmission pin, thereby opening the connecting channel. At this time, the torsion spring 1133 is compressed and stores energy. When the flow of the hot and humid CO2 gas stops or the pressure in the upper and lower chambers is balanced, the torsion spring 1133 releases energy and pushes the connecting block 1132 and the sealing plate 1131 to reset, thereby closing the connecting channel and preventing the reverse flow of the hot and humid CO2 gas.

[0103] A filling piece 3 is arranged outside the carrying box 11 , and the filling piece 3 includes a water filling pipe 32 extending to the inner cavity of the water storage tank 18 , a check valve 321 is arranged inside the water filling pipe 32 , and a detachable cover 31 is arranged on the top of the water filling pipe 32 .

[0104] The specific implementation is as follows: the check valve 321 is made of medical rubber material, and the check valve 321 is integrally formed with the water injection pipe 32. The lower end of the check valve 321 is in a closed state without the influence of external force. When water is injected into the water tank 18 through the water injection pipe 32, the lower end of the check valve 321 opens. When the water in the water tank 18 is heated and the air pressure in the inner cavity of the water tank 18 rises, the lower end of the check valve 321 is closed to reduce the loss of temperature in the inner cavity of the water tank 18.

[0105] A gas output pipe 16 is fixedly installed on the outside of the air supply box 12, and the inner cavity of the gas output pipe 16 is connected to the upper chamber of the mixing box 19. A temperature and humidity detector 15 connected to the upper chamber of the mixing box 19 is also arranged on the outside of the air supply box 12.

[0106] The specific implementation is as follows: the other end of the gas output tube 16 is connected to a needle for piercing the simulated skin to supply gas to the simulated cavity, and the temperature and humidity detector 15 can detect the temperature and humidity of the humid CO2 in the upper chamber of the mixing box 19.

[0107] Embodiment 2:

[0108] This embodiment provides a technical solution based on the first embodiment: the locking component can also be an electromagnet, and metal is coated on the outside of the fixing frame 21. When the electromagnet is energized to generate a magnetic field, the electromagnet attracts and fixes the fixing frame 21. When the power supply of the electromagnet is cut off, the fixing frame 21 is separated from the carrying box 11.

[0109] Embodiment three;

[0110] This embodiment provides a technical solution based on the first embodiment: the temperature control component can also heat the water in the water tank 18 by irradiating the water with infrared rays emitted by the infrared radiator.

[0111] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A pneumoperitoneum box for simulating abdominal surgery, characterized in that: It comprises a bearing component (1), a fixing component (2) and an air supply component: The bearing assembly (1) serves as a platform for simulating abdominal surgery and is used to bear simulated skin. The bearing assembly (1) comprises a bearing box (11), and the bearing box (11) is provided with a simulated cavity for bearing simulated internal organs. A fixing member (2) is arranged outside the bearing assembly (1), the fixing member (2) is used to fix the simulated skin outside the simulation cavity, and the simulated skin isolates the simulation cavity from the outside, the fixing member (2) comprises a fixing frame (21) adapted to the outer contour of the simulation cavity, one side of the fixing frame (21) is rotatably connected to the bearing box (11) through a transmission member, and the fixing frame (21) is connected to the bearing box (11) through a locking assembly; An air supply component is arranged on one side of the carrying box (11), the air supply component is used to supply air to the simulation cavity and separate the simulated internal organs from the simulated skin, the air supply component includes a temperature control component for adjusting the temperature of the simulation cavity, the temperature control component is used to heat water to a predetermined temperature, the temperature control component is also used to heat the gas input into the simulation cavity to a predetermined temperature and maintain a stable temperature state after reaching the temperature, the air supply component also includes an atomization component and a mixing component, the atomization component atomizes the water heated by the temperature control component and mixes it with the gas in the mixing component.

2. The pneumoperitoneum box for simulating abdominal surgery according to claim 1, characterized in that: The transmission member comprises: Two symmetrically arranged adjustment blocks (22) are fixedly installed on the outside of the carrying box (11), and circular holes are provided on opposite sides of the two adjustment blocks (22); The two eccentric wheels (25) are rotatably mounted on the inner walls of the circular holes formed in the two adjusting blocks (22); The two ends of the rotating pin (24) are respectively fixedly connected to one side of the two eccentric wheels (25) which deviates from the geometric center.

3. The pneumoperitoneum box for simulating abdominal surgery according to claim 1, characterized in that: The locking member comprises: A bearing column (27) is fixedly mounted on the outside of the bearing box (11) and away from the transmission member; A locking block (23) is sleeved on the outside of the bearing column (27), and the locking block (23) can rotate around the axis of the bearing column (27); Two symmetrically arranged clamping wheels (28) are provided with pins away from the geometric center and are rotatably connected to the bearing column (27) via the pins, and the clamping wheels (28) are located above the locking block (23); The ends of the force ring (26) are respectively fixedly connected to the outer sides of the two clamping wheels (28). The force ring (26) is used to increase the power arm when the clamping wheels (28) are rotated.

4. The pneumoperitoneum box for simulating abdominal surgery according to claim 1, characterized in that: The air supply assembly also includes: An air supply box (12) is fixedly installed inside the carrying box (11), and one side of the air supply box (12) is located inside the simulation cavity; A water storage tank (18) is arranged inside the air supply box (12), and the outer side of the water storage tank (18) is fixedly connected to the air supply box (12), and the water storage tank (18) is used to store water; The input pipe (17) is fixedly installed on one side of the air supply box (12), and the input pipe (17) is provided with a switch valve.

5. The pneumoperitoneum box for simulating abdominal surgery according to claim 4, characterized in that: The atomizing assembly comprises an atomizing box (110) arranged inside an air supply box (12); an atomizer (111) is fixedly installed in the inner cavity of the atomizing box (110); the atomizer (111) is connected to the inner cavity of a water storage tank (18) via a connecting pipe; the atomizer (111) atomizes water in the water storage tank (18).

6. The pneumoperitoneum box for simulating abdominal surgery according to claim 5, characterized in that: The mixing assembly comprises: A mixing box (19) is arranged inside the air supply box (12), and the mixing box (19) is connected to an output end of an atomizer (111) provided in the atomization box (110); A partition plate (112) is fixedly mounted on the inner cavity of the mixing box (19) and divides the mixing box (19) into two upper and lower chambers. The lower chamber of the mixing box (19) is connected to the inner cavity of the input pipe (17). A passage is formed through the partition plate (112) to connect the upper and lower chambers. The one-way valve assembly (113) is arranged on the top of the partition plate (112) and is capable of blocking the communication channel opened by the partition plate (112).

7. The pneumoperitoneum box for simulating abdominal surgery according to claim 4, characterized in that: The temperature control component comprises: A heating resistor (114) is disposed in the inner cavity of the water storage tank (18); A fixed bracket (116), one side of which is fixedly mounted on the inner wall of the water storage tank (18), the fixed bracket (116) is sleeved on the outside of the heating resistor (114), and the fixed bracket (116) fixes the heating resistor (114) in the inner cavity of the water storage tank (18); A plurality of heat-conducting rods (115) are arranged in a linear array in the inner cavity of the water storage tank (18), and the plurality of heat-conducting rods (115) sequentially penetrate the water storage tank (18) and the air supply box (12) and extend to the simulation cavity; A heat conducting plate (13) is fixedly mounted on the outside of the air supply box (12), and one side of the heat conducting plate (13) is fixedly connected to a plurality of heat conducting rods (115), and the heat conducting plate (13) is also located in the simulation cavity; A plurality of fans (14) are distributed in a linear array and fixedly installed on a side of the heat conducting plate (13) away from the water storage tank (18).

8. The pneumoperitoneum box for simulating abdominal surgery according to claim 6, characterized in that: The one-way valve assembly (113) comprises: Two fixing blocks (1134) are symmetrically fixedly mounted on the top of the partition plate (112); The transmission pin has two ends fixedly mounted on the sides of the two fixing blocks (1134) close to each other; A connecting block (1132) is sleeved on the outside of the driving pin, and the connecting block (1132) is rotatably connected to the driving pin; Two torsion springs (1133) are symmetrically sleeved on the outside of the transmission pin, and one end of the torsion spring (1133) is fixedly connected to the connecting block (1132), and the other end is fixedly connected to the fixing block (1134); The sealing plate (1131) is fixedly mounted on one side of the connecting block (1132) and is located at the top of the connecting channel opened by the partition plate (112).

9. The pneumoperitoneum box for simulating abdominal surgery according to claim 4, characterized in that: A filling piece (3) is arranged on the outside of the carrying box (11), and the filling piece (3) comprises a water filling pipe (32) extending to the inner cavity of the water storage tank (18), a check valve (321) is arranged on the inside of the water filling pipe (32), and a detachable cover (31) is arranged on the top of the water filling pipe (32).

10. The pneumoperitoneum box for simulating abdominal surgery according to claim 6, characterized in that: A gas output pipe (16) is fixedly installed on the outside of the air supply box (12), and the inner cavity of the gas output pipe (16) is connected to the upper chamber of the mixing box (19). A temperature and humidity detector (15) connected to the upper chamber of the mixing box (19) is also arranged on the outside of the air supply box (12).

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