A pneumoperitoneum machine with heating function for abdominal surgery

Abstract

The present invention discloses a pneumoperitoneum machine with a heating function for abdominal surgery, which belongs to the field of pneumoperitoneum machines, and includes a main machine, a heating mechanism, a pneumoperitoneum needle and a gas source, wherein the main machine is connected to the heating mechanism through a gas pipeline, and the heating mechanism is connected to the gas source through the gas pipeline, and a gas outlet is fixedly connected to the bottom end of one side of the main machine, and the gas outlet is connected to the pneumoperitoneum needle through the gas pipeline; a flow valve, a processor and a pressure sensor are arranged inside the main machine, and the flow valve is connected to the heating mechanism through the gas pipeline, the flow valve is connected to the gas outlet through the gas pipeline, and the gas pipeline between the flow valve and the gas outlet is connected to the pressure sensor, the flow valve and the pressure sensor are both electrically connected to the processor, and the gas pipeline between the flow valve and the gas outlet is sleeved with a heat preservation component on the outside. The present invention can quickly and comprehensively heat carbon dioxide gas through the heating mechanism provided.

Description

Technical Field

[0001] The invention relates to a pneumoperitoneum machine, in particular to a pneumoperitoneum machine with a heating function used for abdominal surgery. Background Art

[0002] The pneumoperitoneum machine is a special device for establishing and maintaining pneumoperitoneum during laparoscopic surgery. Its function is to establish artificial pneumoperitoneum, which is to separate the abdominal wall from the internal organs through the mechanical pressurization and inflation of the pneumoperitoneum machine, providing sufficient operating space for surgery and avoiding damage to the internal organs when the puncture cannula pierces the abdominal cavity.

[0003] Due to the temperature difference between the gas and the abdominal cavity, water vapor condensation is easy to occur, thus affecting the use. Therefore, people heat the gas before inflating the human abdominal cavity. The existing gas source usually uses centralized gas supply or gas storage tanks. The operating rooms of hospitals mostly use centralized gas supply, and the gas source mostly uses carbon dioxide.

[0004] The existing heating method has the following problems: the efficiency of carbon dioxide gas in absorbing heat is not very high, and it is difficult to heat carbon dioxide gas quickly and comprehensively when heating it in the existing technology. Therefore, those skilled in the art provide a pneumoperitoneum machine with heating function for abdominal surgery to solve the problems raised in the above background technology. Summary of the invention

[0005] The object of the present invention is to provide a pneumoperitoneum machine with a heating function for use in abdominal surgery, which can quickly and comprehensively heat carbon dioxide gas through a heating mechanism to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A pneumoperitoneum machine with a heating function for abdominal surgery comprises a main unit, a heating mechanism, a pneumoperitoneum needle and an air source, wherein the main unit is connected to the heating mechanism via an air pipe, and the heating mechanism is connected to the air source via the air pipe, an air outlet is fixedly connected to the bottom end of one side of the main unit, and the air outlet is connected to the pneumoperitoneum needle via the air pipe; a flow valve, a processor and a pressure sensor are arranged inside the main unit, and the flow valve is connected to the heating mechanism via the air pipe, the flow valve is connected to the air outlet via the air pipe, and the air pipe between the flow valve and the air outlet is connected to the pressure sensor, the flow valve and the pressure sensor are both electrically connected to the processor, and an insulation component is sleeved on the outside of the air pipe between the flow valve and the air outlet.

[0008] The provided heating mechanism can heat the carbon dioxide gas quickly and comprehensively.

[0009] As a further scheme of the present invention: the heating mechanism specifically includes: an air inlet pipe and an air outlet pipe, the air inlet pipe is connected with an air source through an air supply pipe, the air outlet pipe is connected with a flow valve through an air supply pipe, and an external heating pipe is fixedly connected between the air outlet pipe and the air inlet pipe, the outer side surface of the external heating pipe is wound with a resistance wire, and the resistance wire has an insulating layer, a heating chamber is opened inside the external heating pipe, and a partition is fixedly connected to the middle position inside the heating chamber, the partition divides the heating chamber into two chambers, and U-shaped tubes are symmetrically fixedly connected on both sides of the partition, the two U-shaped tubes are respectively located in the two chambers, and a plurality of first through holes distributed in a circular shape are opened on one end of the U-shaped tube close to the partition, an inner heating pipe is penetrated inside the partition, and both ends of the inner heating pipe are respectively located inside the two U-shaped tubes, a plurality of second through holes distributed in a circular shape are opened at the edge positions of both ends of the inner heating pipe, and a heating rod is fixedly connected to the middle position inside the inner heating pipe, and an insulation pipe is fixedly sleeved on the outside of the external heating pipe.

[0010] During use, the carbon dioxide gas enters the outer heating tube through the air intake pipe. At this time, the resistance wire is energized and heated, and the heat is conducted to the inner wall of the outer heating tube. Due to the obstruction of the U-shaped tube, the carbon dioxide gas can only flow through the gap between the inner wall of the outer heating tube and the outer wall of the U-shaped tube. During the process, the carbon dioxide gas fully contacts the inner wall of the outer heating tube to absorb heat. Subsequently, the carbon dioxide gas enters the U-shaped tube from the first through hole, and then enters the inner heating tube through the second through hole. The carbon dioxide gas entering the inner heating tube is evenly distributed around the heating rod. At this time, the heating rod is energized and heated to heat the flowing carbon dioxide gas for the second time, ensuring that all parts of the carbon dioxide gas can be fully heated. Subsequently, the second The heated carbon dioxide gas enters another U-shaped tube through the second through hole on the other side, and then enters the gap between the inner wall of the external heating tube and the outer wall of the U-shaped tube from the first through hole of the U-shaped tube for a third heating. Finally, the carbon dioxide gas goes out from the outlet pipe. Since the heat conduction efficiency of carbon dioxide gas is not very high, some carbon dioxide gas does not contact the heat source and cannot quickly obtain heat from other carbon dioxide gases, resulting in the temperature not rising to the preset temperature, which leads to unsatisfactory heating effect. The above-mentioned facilities ensure that the carbon dioxide gas is fully in contact with the heat during the whole process, and can quickly and comprehensively heat the carbon dioxide gas, effectively solving this problem.

[0011] As a further solution of the present invention: a reflective coating is provided on the inner wall of the thermal insulation pipe.

[0012] The reflective coating effectively reduces the heat radiation loss inside the insulation pipe.

[0013] As a further solution of the present invention: a sealing ring is sleeved and fixed at the junction between the outer side surface of the insulation pipe and the air inlet pipe and the air outlet pipe.

[0014] The provision of the sealing ring can improve the sealing performance of the joints between the thermal insulation pipe and the air inlet pipe and the air outlet pipe to prevent heat from escaping.

[0015] As a further solution of the present invention: a third temperature sensor is embedded in the inner wall of the air outlet pipe, and the third temperature sensor is electrically connected to the processor.

[0016] The third temperature sensor can detect the temperature of the heated carbon dioxide gas.

[0017] As a further solution of the present invention: the insulation component specifically includes: an insulation cylinder sleeved on the outside of the air pipe between the flow valve and the air outlet head, the two ends of the insulation cylinder are detachably connected with a cover body, and a slot hole for the air pipe to pass through is opened in the center of the side of the cover body, a plurality of evenly placed insulation light strips are fixedly connected to the inner wall of the insulation cylinder, and a stabilization mechanism is provided near the center of the interior of the insulation cylinder.

[0018] When the carbon dioxide gas is transported to the inside of the main unit, that is, when it reaches the gas pipe between the flow valve and the gas outlet head, the carbon dioxide gas will dissipate some heat, which will cause the carbon dioxide gas that was originally heated to a suitable temperature to be unable to meet the demand. Therefore, the present application adds an insulation component to this section of the gas pipe, that is, the gas pipe passes through the slot of the cover body and enters the insulation tube, and then the gas pipe entering the insulation tube is limited and stabilized by the stabilization mechanism, and then the gas pipe is passed through the slot of the cover body at the other end, and the covers at both ends are covered. When in use, the insulation light strip emits light and heat to create a good insulation environment inside the insulation tube. When the carbon dioxide gas passes through this section of the gas pipe, the insulation environment created will not lose much heat, thereby reducing the heat loss of the carbon dioxide gas and ensuring that the output gas temperature meets the demand.

[0019] As a further solution of the present invention: the stabilization mechanism specifically includes: a plurality of arc-shaped plates, the plurality of arc-shaped plates are circular and rest against the outer surface of the gas pipe, and the outer surface of the arc-shaped plate is fixedly connected with a telescopic rod, one end of the telescopic rod is movably inserted into a telescopic groove provided on the inner wall of the insulation tube, and a spring column is sleeved on the outside of the telescopic rod, and the two ends of the spring column are respectively fixed on the inner wall of the insulation tube and the outer surface of the arc-shaped plate.

[0020] Since the gas pipes are mostly made of rubber, their thermal expansion and contraction phenomenon is more obvious than that of metal pipes. Not long after the first use, the heated carbon dioxide gas will cause the gas pipe in the insulation component to expand. At this time, the cross-sectional area of ​​the gas pipe increases, pushing the arc plate outward, while the spring column is compressed, and the telescopic rod moves inward in the telescopic groove. After the gas pipe cools down, the cross-sectional area of ​​the gas pipe decreases and returns to its original state. At this time, the arc plate is pushed inward by the spring column, and the telescopic rod moves outward in the telescopic groove. This setting effectively ensures that the gas pipe is in the center of the insulation tube under the conditions of thermal expansion and contraction, thereby ensuring that the insulation effect of the insulation tube will not be affected by the deviation of the gas pipe.

[0021] As a further solution of the present invention: a plurality of positioning slots are provided at both ends of the heat preservation tube, a positioning card plate is fixedly connected to a side surface of the cover body corresponding to the position of the positioning slot, and the positioning card plate is stuck in the positioning slot and in interference contact with the positioning slot.

[0022] When closing the cover, it is only necessary to align the positioning card plate of the cover and lock it in the positioning card slot. The operation is simple and convenient for installation and removal.

[0023] As a further solution of the present invention: a heat insulation layer is fixedly connected to the outer side surface of the heat preservation cylinder.

[0024] The heat from the surface of the insulation layer is dissipated to the inside of the host.

[0025] As a further solution of the present invention: a display screen and buttons are embedded on one side of the host, and the display screen and buttons are electrically connected to the processor.

[0026] The display screen can be used to view the operating status of the insufflator, and the buttons are used to adjust the operating status.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] 1. Since the heat conduction efficiency of carbon dioxide gas is not very high, some carbon dioxide gas does not contact the heat source and cannot quickly obtain heat from other carbon dioxide gases, resulting in the temperature not rising to the preset temperature, which in turn leads to unsatisfactory heating effect. The present application can ensure that the carbon dioxide gas is in full contact with the heat source to absorb heat during the whole process through the added heating mechanism, and can quickly and comprehensively heat the carbon dioxide gas, effectively solving the above problem.

[0029] 2. When the carbon dioxide gas is transported to the inside of the main unit, that is, when it reaches the gas pipe between the flow valve and the gas outlet, the carbon dioxide gas will dissipate some heat, which will cause the carbon dioxide gas that was originally heated to a suitable temperature to be unable to meet the demand. Therefore, the present application installs an insulation component on this section of the gas pipe, that is, the gas pipe passes through the slot of the cover body and enters the insulation cylinder, and then the gas pipe entering the insulation cylinder is limited and stabilized by the stabilization mechanism, and then the gas pipe is passed through the slot of the cover body at the other end, and the covers at both ends are covered. When in use, the insulation light strip emits light and heat to create a good insulation environment inside the insulation cylinder. When the carbon dioxide gas passes through this section of the gas pipe, the insulation environment created will not lose much heat, thereby reducing the heat loss of the carbon dioxide gas and ensuring that the output gas temperature meets the demand.

[0030] 3. By building a heat compensation model in the processor, the temperature loss parameters collected in the past can be used to perform temperature compensation on the carbon dioxide gas to be heated in real time, and the carbon dioxide gas can be heated to a temperature slightly higher than the preset temperature, thereby ensuring that the heated carbon dioxide gas loses a certain amount of heat and reaches the pneumoperitoneum needle, and its heat meets the requirement, thereby making the carbon dioxide gas entering the human abdominal cavity better meet the temperature requirement. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the structure of a pneumoperitoneum machine with a heating function used in abdominal surgery;

[0032] Figure 2 It is a schematic diagram of the structure of a heating mechanism in an insufflator with a heating function used in abdominal surgery;

[0033] Figure 3 It is a pneumoperitoneum machine with heating function for abdominal surgery. Figure 2 A magnified view of middle;

[0034] Figure 4 A combined view of a U-shaped tube and a first through hole in a pneumoperitoneum machine with a heating function for abdominal surgery;

[0035] Figure 5 This is a schematic diagram of the structure of a heat preservation component in an insufflator with a heating function used in abdominal surgery;

[0036] Figure 6 This is an internal view of a heat preservation cylinder in an insufflator with a heating function used in abdominal surgery;

[0037] Figure 7 A combined view of a pneumoperitoneum needle and a second temperature sensor in a pneumoperitoneum machine with a heating function for abdominal surgery;

[0038] Figure 8 The present invention is a structural block diagram of an insufflator with heating function used in abdominal surgery.

[0039] In the figure: 1, host; 101, flow valve; 102, processor; 103, pressure sensor; 2, heating mechanism; 201, air inlet pipe; 202, air outlet pipe; 203, external heating pipe; 204, resistance wire; 205, heating chamber; 206, U-shaped pipe; 207, first through hole; 208, internal heating pipe; 209, second through hole; 2010, heating rod; 2011, insulation pipe; 2012, reflective coating; 2013, sealing ring; 201 4. The third temperature sensor; 2015. The partition; 3. The air outlet; 4. The pneumoperitoneum needle; 5. The pneumoperitoneum tube; 6. The display screen; 7. The first temperature sensor; 8. The second temperature sensor; 9. The gas source; 10. The button; 11. The heat preservation tube; 12. The cover; 13. The positioning slot; 14. The positioning card plate; 15. The slot; 16. The heat insulation layer; 17. The telescopic slot; 18. The telescopic rod; 19. The arc plate; 20. The wear-resistant layer; 21. The spring column; 22. The heat preservation light strip. DETAILED DESCRIPTION

[0040] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0041] See also Figures 1 to 8 In an embodiment of the present invention, a pneumoperitoneum machine with heating function for abdominal surgery includes a main unit 1, a heating mechanism 2, a pneumoperitoneum needle 4 and a gas source 9. The main unit 1 is connected to the heating mechanism 2 through a gas pipeline, and the heating mechanism 2 is connected to the gas source 9 through a gas pipeline. A gas outlet 3 is fixedly connected to the bottom end of one side of the main unit 1, and the gas outlet 3 is connected to the pneumoperitoneum needle 4 through a gas pipeline 5. A flow valve 101, a processor 102 and a pressure sensor 103 are arranged inside the main unit 1, and the flow valve 101 is connected to the heating mechanism 2 through a gas pipeline, and the flow valve 101 is connected to the gas outlet 3 through a gas pipeline, and the gas pipeline between the flow valve 101 and the gas outlet 3 is connected to the pressure sensor 103, and the flow valve 101 and the pressure sensor 103 are both electrically connected to the processor 102, and the gas pipeline between the flow valve 101 and the gas outlet 3 is sleeved with a heat preservation component. By setting the heating mechanism 2, the carbon dioxide gas can be quickly and comprehensively heated.

[0042] In this embodiment: the heating mechanism 2 specifically includes: an air inlet pipe 201 and an air outlet pipe 202, the air inlet pipe 201 is connected to the air source 9 through the air supply pipe, the air outlet pipe 202 is connected to the flow valve 101 through the air supply pipe, and an external heating pipe 203 is fixedly connected between the air outlet pipe 202 and the air inlet pipe 201, the outer side of the external heating pipe 203 is wound with a resistance wire 204, and the resistance wire 204 has an insulating layer, a heating chamber 205 is opened inside the external heating pipe 203, and a partition 2015 is fixedly connected to the middle position of the heating chamber 205, the partition 2015 divides the heating chamber 205 into two chambers, and the partition 201 The two sides are symmetrically fixedly connected with U-shaped tubes 206, the two U-shaped tubes 206 are respectively located in the two chambers, and a plurality of first through holes 207 distributed in a circular shape are opened at one end of the U-shaped tube 206 close to the partition 2015, an inner heating tube 208 is penetrated inside the partition 2015, and the two ends of the inner heating tube 208 are respectively located inside the two U-shaped tubes 206, a plurality of second through holes 209 distributed in a circular shape are opened at the edge positions of both ends of the inner heating tube 208, a heating rod 2010 is fixedly connected to the middle position of the inner heating tube 208, and a heat preservation tube 2011 is fixedly sleeved on the outside of the outer heating tube 203. During use, the carbon dioxide gas enters the outer heating tube 203 through the air inlet pipe 201. At this time, the resistance wire 204 is energized and heated, and the heat is conducted to the inner wall of the outer heating tube 203. Due to the obstruction of the U-shaped tube 206, the carbon dioxide gas can only flow through the gap between the inner wall of the outer heating tube 203 and the outer wall of the U-shaped tube 206. During the process, the carbon dioxide gas fully contacts the inner wall of the outer heating tube 203 to absorb heat. Subsequently, the carbon dioxide gas enters the U-shaped tube 206 through the first through hole 207, and then enters the inner heating tube 208 through the second through hole 209. The carbon dioxide gas entering the inner heating tube 208 is evenly distributed around the heating rod 2010. At this time, the heating rod 2010 is energized and heated to heat the flowing carbon dioxide gas for the second time, so as to ensure that all parts of the carbon dioxide gas can be It can be fully heated, and then the carbon dioxide gas after the second heating enters the inside of another U-shaped tube 206 through the second through hole 209 on the other side, and then enters the gap between the inner wall of the external heating tube 203 and the outer wall of the U-shaped tube 206 from the first through hole 207 of the U-shaped tube 206 for the third heating. Finally, the carbon dioxide gas goes out from the outlet pipe 202. Since the heat conduction efficiency of carbon dioxide gas is not very high, some carbon dioxide gas does not contact the heat source and cannot quickly obtain heat from other carbon dioxide gases, resulting in the temperature not rising to the preset temperature, which leads to unsatisfactory heating effect. The above-mentioned facilities ensure that the carbon dioxide gas is fully in contact with the heat during the whole process, and can quickly and comprehensively heat the carbon dioxide gas, effectively solving this problem.

[0043] In this embodiment, a reflective coating 2012 is provided on the inner wall of the thermal insulation tube 2011. The reflective coating 2012 effectively reduces the heat radiation loss inside the thermal insulation tube 2011.

[0044] In this embodiment, a sealing ring 2013 is sleeved and fixed at the junction of the outer side of the heat preservation pipe 2011 and the air inlet pipe 201 and the air outlet pipe 202. The setting of the sealing ring 2013 can improve the sealing of the junction of the heat preservation pipe 2011 and the air inlet pipe 201 and the air outlet pipe 202 to prevent heat from escaping.

[0045] In this embodiment, a third temperature sensor 2014 is embedded in the inner wall of the gas outlet pipe 202, and the third temperature sensor 2014 is electrically connected to the processor 102. The third temperature sensor 2014 can detect the temperature of the heated carbon dioxide gas.

[0046] In this embodiment: the insulation component specifically includes: an insulation tube 11 sleeved on the outside of the air pipe between the flow valve 101 and the air outlet head 3, the two ends of the insulation tube 11 are detachably connected with a cover body 12, and a slot 15 for the air pipe to pass through is opened in the center of the side of the cover body 12, a plurality of evenly placed insulation light strips 22 are fixedly connected to the inner wall of the insulation tube 11, and a stabilization mechanism is provided near the center of the interior of the insulation tube 11. When the carbon dioxide gas is transported to the inside of the main unit 1, that is, when it reaches the gas pipe between the flow valve 101 and the gas outlet head 3, the carbon dioxide gas will dissipate some heat, which will cause the carbon dioxide gas originally heated to a suitable temperature to be unable to meet the demand. Therefore, the present application adds an insulation component to this section of the gas pipe, that is, the gas pipe passes through the slot 15 of the cover body 12 and enters the insulation tube 11, and then the gas pipe entering the insulation tube 11 is limited and stabilized by the stabilization mechanism, and then the gas pipe is passed out from the slot 15 of the cover body 12 at the other end, and the cover bodies 12 at both ends are covered. When in use, the insulation light strip 22 emits light and heat to create a good insulation environment inside the insulation tube 11. When the carbon dioxide gas passes through this section of the gas pipe, the insulation environment created will not lose much heat, thereby reducing the heat loss of the carbon dioxide gas and ensuring that the output gas temperature meets the demand.

[0047] In this embodiment: the stabilization mechanism specifically includes: a plurality of arc plates 19, the plurality of arc plates 19 are circular and rest against the outer surface of the gas pipe, and the outer side surface of the arc plate 19 is fixedly connected with a telescopic rod 18, one end of the telescopic rod 18 is movably inserted into a telescopic groove 17 provided on the inner wall of the insulation tube 11, and a spring column 21 is sleeved on the outside of the telescopic rod 18, and the two ends of the spring column 21 are respectively fixed on the inner wall of the insulation tube 11 and the outer surface of the arc plate 19. Since the gas pipe is mostly made of rubber material, its thermal expansion and contraction phenomenon is more obvious than that of metal pipes. Not long after the first use, the heated carbon dioxide gas will cause the gas pipe in the insulation component to expand. At this time, the cross-sectional area of ​​the gas pipe increases, pushing the arc plate 19 outward, and the spring column 21 is compressed, and the telescopic rod 18 moves inward in the telescopic groove 17. After the gas pipe cools down, the cross-sectional area of ​​the gas pipe decreases and returns to its original state. At this time, the arc plate 19 is pushed inward by the spring column 21, and the telescopic rod 18 moves outward in the telescopic groove 17. This arrangement effectively ensures that the gas pipe is in the center of the insulation tube 11 under the condition of thermal expansion and contraction, thereby ensuring that the insulation effect of the insulation tube 11 will not be affected by the deviation of the gas pipe.

[0048] In this embodiment, a plurality of positioning slots 13 are provided at both ends of the heat preservation tube 11, and a positioning card plate 14 is fixedly connected to one side of the cover body 12 at positions corresponding to the positioning slots 13, and the positioning card plate 14 is stuck in the positioning slots 13 and in interference contact with the positioning slots 13. When closing the cover body 12, it is only necessary to align the positioning card plate 14 of the cover body 12 and stick it in the positioning slots 13, which is simple to operate and convenient for installation and removal.

[0049] In this embodiment, the outer side of the heat preservation tube 11 is fixedly connected with a heat insulation layer 16. The heat of the surface of the heat insulation layer 16 is dissipated to the inside of the main unit 1.

[0050] In this embodiment: a display screen 6 and a button 10 are embedded on one side of the host 1, and the display screen 6 and the button 10 are electrically connected to the processor 102. The display screen 6 can be used to view the operating status of the pneumoperitoneum machine (including the temperature measured by the first temperature sensor 7, the second temperature sensor 8, and the third temperature sensor 2014, and the gas pressure measured by the pressure sensor 103), and the button 10 is used to adjust the operating status.

[0051] In this embodiment, a first temperature sensor 7 is fixedly connected to the middle position of the side of the host 1 , and the first temperature sensor 7 is electrically connected to the processor 102 .

[0052] In this embodiment, a wear-resistant layer 20 is fixedly connected to the inner side surface of the arc-shaped plate 19 .

[0053] In this embodiment, a second temperature sensor 8 is embedded in the interior of the Veress needle 4 , and the second temperature sensor 8 is electrically connected to the processor 102 .

[0054] The present application also discloses a heat compensation model, which is constructed in the processor 102. The specific construction steps are as follows:

[0055] Step 1: Mark the working environment temperature measured by the first temperature sensor 7 in the past as T1i, i=1...n;

[0056] Step 2: Under the condition of working environment temperature T1i, the outlet gas temperature measured by the second temperature sensor 8 is marked as T2i, i=1...n; the temperature of the heated carbon dioxide gas measured by the third temperature sensor 2014 is marked as T3i, i=1...n;

[0057] Step 3: Calculate the temperature loss parameter Z under the working environment temperature T1i, let Z = (T21 / T31+T22 / T32+T23 / T33+…+T2n / T3n) / n, i = 1…n;

[0058] Step 4: Mark the working environment temperature measured in real time by the first temperature sensor 7 as T1A, and then match T1A with T1i. If T1A matches any T1i, retrieve the temperature loss parameter Z corresponding to the T1i.

[0059] Step 5: Mark the preset outlet temperature as T2B;

[0060] Step 6: Let the temperature of the heated carbon dioxide gas to be compensated be T3C, T3C = T2B / Z;

[0061] Step 7: The processor 102 issues a heating instruction to the heating mechanism 2 according to T3C, and the heating rod 2010 and the resistance wire 204 are energized to generate heat until the temperature measured by the third temperature sensor 2014 reaches T3C.

[0062] The heat compensation model can perform temperature compensation on the carbon dioxide gas to be heated in real time through the previously collected temperature loss parameters, and heat the carbon dioxide gas to a temperature slightly higher than the preset temperature, thereby ensuring that the heated carbon dioxide gas loses a certain amount of heat and reaches the pneumoperitoneum needle 4, and its heat meets the demand.

[0063] The working principle of the present invention is: after the gas source 9 is connected, it can be used. When in use, the carbon dioxide gas enters the external heating tube 203 through the air inlet pipe 201. At this time, the resistance wire 204 is energized and heated, and the heat is conducted to the inner wall of the external heating tube 203. Due to the obstruction of the U-shaped tube 206, the carbon dioxide gas can only flow through the gap between the inner wall of the external heating tube 203 and the outer wall of the U-shaped tube 206. During the process, the carbon dioxide gas fully contacts the inner wall of the external heating tube 203 to absorb heat. Subsequently, the carbon dioxide gas enters the interior of the U-shaped tube 206 from the first through hole 207, and then enters the internal heating tube 208 through the second through hole 209. The carbon dioxide gas entering the internal heating tube 208 is evenly distributed around the heating rod 2010. At this time, the heating rod 2010 is powered on to heat the flowing carbon dioxide gas for the second time, ensuring that all parts of the carbon dioxide gas can be fully heated. Subsequently, the carbon dioxide gas after the second heating enters the inside of another U-shaped tube 206 through the second through hole 209 on the other side, and then enters the gap between the inner wall of the external heating tube 203 and the outer wall of the U-shaped tube 206 from the first through hole 207 of the U-shaped tube 206 for the third heating. Finally, the carbon dioxide gas goes out from the outlet pipe 202 and enters the host 1, wherein the processor 102 controls the flow valve 101 to maintain the stability of the carbon dioxide gas according to the preset program, and the carbon dioxide gas passing through the flow valve 101 enters the pneumoperitoneum tube 5 from the outlet head 3, and finally is introduced into the abdominal cavity of the person from the pneumoperitoneum needle 4. In addition, the pressure sensor 103 measures the outlet pressure of the carbon dioxide gas in real time. It should be noted that when the carbon dioxide gas is transported to the inside of the main unit 1, that is, when it reaches the gas pipe between the flow valve 101 and the gas outlet head 3, the carbon dioxide gas will dissipate part of the heat, which will cause the carbon dioxide gas originally heated to a suitable temperature to be unable to meet the demand. Therefore, the present application installs an insulation component on this section of the gas pipe, that is, the gas pipe passes through the slot 15 of the cover body 12 and enters the insulation tube 11, and then the gas pipe entering the insulation tube 11 is limited and stabilized by the stabilization mechanism, and then the gas pipe is passed out from the slot 15 of the cover body 12 at the other end, and the cover bodies 12 at both ends are covered. When in use, the insulation light strip 22 emits light and heat to create a good insulation environment inside the insulation tube 11. When the carbon dioxide gas passes through this section of the gas pipe, the insulation environment created will not lose much heat, thereby reducing the heat loss of the carbon dioxide gas and ensuring that the output gas temperature meets the demand.

[0064] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

[0065] What has been described above are only preferred specific implementations of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, can make equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A pneumoperitoneum machine with heating function for abdominal surgery, It is characterized in that The device comprises a main unit (1), a heating mechanism (2), a pneumoperitoneum needle (4) and a gas source (9); the main unit (1) and the heating mechanism (2) are connected via a gas pipeline, and the heating mechanism (2) is connected to the gas source (9) via the gas pipeline; a gas outlet (3) is fixedly connected to the bottom end of one side of the main unit (1), and the gas outlet (3) and the pneumoperitoneum needle (4) are connected via a pneumoperitoneum tube (5); The host (1) is provided with a flow valve (101), a processor (102) and a pressure sensor (103) inside, and the flow valve (101) is connected to the heating mechanism (2) through an air pipe, the flow valve (101) is connected to the air outlet head (3) through an air pipe, and the air pipe between the flow valve (101) and the air outlet head (3) is connected to the pressure sensor (103), the flow valve (101) and the pressure sensor (103) are both electrically connected to the processor (102), and the air pipe between the flow valve (101) and the air outlet head (3) is sleeved with a heat preservation component; The heating mechanism (2) specifically comprises: an air inlet pipe (201) and an air outlet pipe (202), wherein the air inlet pipe (201) is connected to an air source (9) via an air supply pipe, and the air outlet pipe (202) is connected to a flow valve (101) via an air supply pipe, and an external heating pipe (203) is fixedly connected between the air outlet pipe (202) and the air inlet pipe (201), and a resistance wire (204) is wound around the outer side of the external heating pipe (203), and the resistance wire (204) has an insulating layer, and a heating chamber (205) is provided inside the external heating pipe (203), and a partition (2015) is fixedly connected to a middle position inside the heating chamber (205), and the partition (2015) divides the heating chamber (205) into two chambers, and the partition (2015) 015) are symmetrically and fixedly connected with U-shaped tubes (206) on both sides, the two U-shaped tubes (206) are respectively located in two chambers, and a plurality of first through holes (207) distributed in a circular shape are opened at one end of the U-shaped tube (206) close to the partition (2015), an internal heating tube (208) is penetrated inside the partition (2015), and the two ends of the internal heating tube (208) are respectively located inside the two U-shaped tubes (206), a plurality of second through holes (209) distributed in a circular shape are opened at the edge positions of both ends of the internal heating tube (208), and a heating rod (2010) is fixedly connected to the middle position of the internal heating tube (208), and an insulation tube (2011) is fixedly sleeved on the outside of the external heating tube (203).

2. The pneumoperitoneum machine with heating function for abdominal surgery according to claim 1, It is characterized in that A reflective coating (2012) is provided on the inner wall of the thermal insulation pipe (2011).

3. The pneumoperitoneum machine with heating function for abdominal surgery according to claim 1, It is characterized in that A sealing ring (213) is sleeved and fixed at the junction of the outer side surface of the thermal insulation pipe (211) and the air inlet pipe (201) and the air outlet pipe (202).

4. The pneumoperitoneum machine with heating function for abdominal surgery according to claim 1, It is characterized in that A third temperature sensor (2014) is embedded in the inner wall of the air outlet pipe (202), and the third temperature sensor (2014) is electrically connected to the processor (102).

5. The pneumoperitoneum machine with heating function for abdominal surgery according to claim 1, It is characterized in that The heat preservation component specifically comprises: a heat preservation tube (11) sleeved on the outside of the gas pipe between the flow valve (101) and the gas outlet head (3); the two ends of the heat preservation tube (11) are detachably connected to a cover body (12); a slot hole (15) for the gas pipe to pass through is provided at the center of the side of the cover body (12); a plurality of evenly placed heat preservation light strips (22) are fixedly connected to the inner wall of the heat preservation tube (11); and a stabilization mechanism is provided near the center of the interior of the heat preservation tube (11).

6. The pneumoperitoneum machine with heating function for abdominal surgery according to claim 5, It is characterized in that The stabilization mechanism specifically comprises: a plurality of arc-shaped plates (19), the plurality of arc-shaped plates (19) are circular and abut against the outer side surface of the gas transmission pipe, and the outer side surface of the arc-shaped plate (19) is fixedly connected with a telescopic rod (18), one end of the telescopic rod (18) is inserted into a telescopic groove (17) provided on the inner wall of the heat preservation tube (11) so as to be movable, and a spring column (21) is sleeved on the outside of the telescopic rod (18), and the two ends of the spring column (21) are respectively fixed on the inner wall of the heat preservation tube (11) and the outer side surface of the arc-shaped plate (19).

7. The pneumoperitoneum machine with heating function for abdominal surgery according to claim 5, It is characterized in that A plurality of positioning slots (13) are provided at both ends of the heat-insulating cylinder (11); a positioning card plate (14) is fixedly connected to a side surface of the cover body (12) at a position corresponding to the positioning slot (13); and the positioning card plate (14) is stuck in the positioning slot (13) and is in interference contact with the positioning slot (13).

8. The pneumoperitoneum machine with heating function for abdominal surgery according to claim 5, It is characterized in that A heat insulation layer (16) is fixedly connected to the outer side surface of the heat preservation cylinder (11).

9. The pneumoperitoneum machine with heating function for abdominal surgery according to claim 5, It is characterized in that A display screen (6) and a button (10) are embedded on one side of the host (1), and the display screen (6) and the button (10) are both electrically connected to the processor (102).

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