Gas heating device for preventing hypothermia in operation

Abstract

The invention relates to the technical field of medical instruments, and discloses a gas heating device for preventing hypothermia in an operation, which comprises a main body assembly, a conveying shell, a heating wire arranged in the conveying shell, a heat conduction shell arranged on the surface of the heating wire, and a heat exchange sheet arranged on the surface of the heat conduction shell; the heat exchange assembly is arranged on the surface of the heat conduction shell and comprises an adjusting piece fixed to the surface of the heat conduction shell and a ceramic heat insulation sleeve fixed to the surface of the heat conduction shell, a through groove is formed in the surface of the ceramic heat insulation sleeve, a sealing window slides on the surface of the ceramic heat insulation sleeve, and a supporting block is fixed to the surface of the ceramic heat insulation sleeve. The device has the beneficial effects that 1, the heat exchange area can be dynamically adjusted through the air cap and the sealing window along with the gas flow, the gas temperature is stabilized in cooperation with heating wire power linkage and temperature control feedback, and low body temperature is prevented; and 2, the guide plate guides the gas to rotate and flow to the heat exchange sheets, so that the heat exchange efficiency is improved, and the sealing window is opened and closed orderly.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a gas heating device for preventing hypothermia during surgery. Background Technology

[0002] In surgical procedures, especially minimally invasive procedures such as laparoscopy, gases such as carbon dioxide need to be continuously injected into the abdominal cavity to create operating space. Clinical studies have shown that these gases are usually not heated and their temperature is much lower than the human body temperature (usually 20-25°C). Continuous infusion can cause the patient's core body temperature to drop rapidly, leading to hypothermic complications such as coagulation disorders, immunosuppression, and delayed postoperative recovery, which seriously affect surgical safety and postoperative recovery. Currently, there is a lack of independent heating devices specifically designed for the gas output from insufflators in clinical practice. Existing heating solutions are mostly integrated inside the insufflator, which suffers from problems such as low heating efficiency and lagging temperature control. Some external heating devices use fixed power heating, which cannot be dynamically adjusted according to the gas flow rate in a timely manner. When the flow rate increases, the contact time between the gas and the heating element is shortened, which can easily lead to insufficient heating. When the flow rate decreases, the gas temperature may exceed the safe range due to overheating, making it difficult to adapt to the needs of frequent fluctuations in gas flow rate during surgery. Summary of the Invention

[0003] In view of the problems existing in the above and / or existing gas heating devices for preventing hypothermia during surgery, the present invention is proposed.

[0004] Therefore, the problem that this invention aims to solve is that the gas heating device during surgery cannot dynamically adjust the temperature according to the flow rate in a timely manner, and is prone to overheating or underheating, resulting in poor adaptability.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a gas heating device for preventing hypothermia during surgery, comprising a main body component including a delivery shell, wherein a heating wire is disposed inside the delivery shell, a heat-conducting shell is disposed on the surface of the heating wire, and a heat exchange plate is disposed on the surface of the heat-conducting shell. A heat exchange assembly is disposed on the surface of the heat-conducting shell, including an adjusting member fixed to the surface of the heat-conducting shell, and a ceramic heat insulation sleeve fixed to the surface of the heat-conducting shell. A through groove is opened on the surface of the ceramic heat insulation sleeve, a sealing window is slidably provided on the surface of the ceramic heat insulation sleeve, a support block is fixed on the surface of the ceramic heat insulation sleeve, a sliding rod is slidably provided in the support block, the other end of the sliding rod is fixed in the sealing window, and a wind cap is fixed on the surface of the sealing window. There are three sets of adjusting components. A first spring, a second spring, and a third spring are respectively fitted on the surface of the three slide rods. The elastic coefficient of the second spring is greater than that of the first spring, and the elastic coefficient of the third spring is greater than that of the second spring.

[0006] As a preferred embodiment of the gas heating device for preventing hypothermia during surgery according to the present invention, the heat exchange assembly further includes a guide member disposed within the delivery housing, including a delivery pipe fixed to the inner wall of the delivery housing, and a guide plate fixed inside the delivery pipe.

[0007] As a preferred embodiment of the gas heating device for preventing hypothermia during surgery according to the present invention, the main component further includes a flow detection element disposed at the air inlet end of the delivery housing, a support base fixed to the inner wall of the delivery housing, a support rod fixed to one side of the support base, and a wind cone sliding on the surface of the support rod.

[0008] As a preferred embodiment of the gas heating device for preventing hypothermia during surgery according to the present invention, the detection element further includes a blocking ring fixed to the surface of the support rod, and a distance sensor is fixed to one side of the support base.

[0009] As a preferred embodiment of the gas heating device for preventing hypothermia during surgery according to the present invention, the detection element further includes a support frame fixed to the inner wall of the delivery housing, a fourth spring fixed to one side of the support frame, and the other end of the fourth spring fixed to one side of the wind cone.

[0010] As a preferred embodiment of the gas heating device for preventing hypothermia during surgery according to the present invention, the main component further includes a support member disposed within the heat-conducting shell, including a heat insulation plate fixed within the heat-conducting shell, and a ceramic rod fixed between the two heat insulation plates.

[0011] As a preferred embodiment of the gas heating device for preventing hypothermia during surgery according to the present invention, the support member further includes a support tube fixed to both ends of the heat-conducting shell, and the support tube is fixed inside the delivery pipe and the delivery shell.

[0012] As a preferred embodiment of the gas heating device for preventing hypothermia during surgery according to the present invention, a control box is fixed on the surface of the delivery housing, and the control box is provided with a display screen and a switch.

[0013] As a preferred embodiment of the gas heating device for preventing hypothermia during surgery according to the present invention, the control box is further provided with a power cord.

[0014] As a preferred embodiment of the gas heating device for preventing hypothermia during surgery according to the present invention, the main component further includes a temperature sensor disposed at the gas outlet end of the delivery housing.

[0015] The beneficial effects of this invention are: 1. The heat exchange area can be dynamically adjusted according to the gas flow through the air cap and sealing window. Combined with the power linkage of the heating wire and temperature control feedback, the gas temperature can be stabilized and hypothermia can be prevented. 2. The guide plate guides the gas to rotate and flow to the heat exchange fins, improving heat exchange efficiency and ensuring the orderly opening and closing of the sealed window. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein: Figure 1 This is a structural diagram of a gas heating device used to prevent hypothermia during surgery.

[0017] Figure 2 This is a cross-sectional view of the delivery housing of a gas heating device used to prevent hypothermia during surgery.

[0018] Figure 3 Gas heating device for preventing hypothermia during surgery Figure 2 Enlarged view of the structure at point A in the middle.

[0019] Figure 4 This is a structural diagram of the hood of a gas heating device used to prevent hypothermia during surgery.

[0020] Figure 5 Gas heating device for preventing hypothermia during surgery Figure 4 Enlarged view of the structure at point B in the middle.

[0021] Figure 6 This is a cross-sectional view of the heat-conducting housing of a gas heating device used to prevent hypothermia during surgery.

[0022] Figure 7 This is a structural diagram of a ceramic heat insulation sleeve for a gas heating device used to prevent hypothermia during surgery.

[0023] In the diagram: Main component 100; Conveying shell 101; Heating wire 102; Heat-conducting shell 103; Heat exchange plate 104; Heat exchange assembly 200; Adjusting component 201; Ceramic insulation sleeve 2011; Through groove 2011-1; Sealing window 2012; Support block 2013; Slide rod 2014; Wind cap 2015; First spring 202; Second spring 203; Third spring 204; Guide component 205; Conveying pipe 2051; Guide plate 2052; Detection component 105; Support base 1051; Support rod 1052; Wind cone 1053; Blocking ring 1054; Distance sensor 1055; Support frame 1056; Fourth spring 1057; Support component 106; Insulation plate 1061; Ceramic rod 1062; Support pipe 1063; Control box 107; Display screen 108; Switch 109; Power cord 110; Temperature sensor 111. Detailed Implementation

[0024] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0026] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0027] Example 1 Reference Figure 1 , Figure 2 and Figures 4-7 This is the first embodiment of the present invention. This embodiment provides a gas heating device for preventing hypothermia during surgery. The gas heating device for preventing hypothermia during surgery includes a main component 100, including a delivery housing 101. A heating wire 102 is disposed inside the delivery housing 101. The heating wire 102 is a nickel-chromium alloy resistance wire. A heat-conducting housing 103 is disposed on the surface of the heating wire 102. The heat-conducting housing 103 is made of a material with good thermal conductivity, such as aluminum alloy, so that the heat of the heating wire 102 is transferred to the surface of the heat-conducting housing 103. A heat exchange plate 104 is disposed on the surface of the heat-conducting housing 103, so that the heat on the surface of the heat-conducting housing 103 is dissipated through the heat exchange plate 104, thereby heating the gas flowing through the heat exchange plate 104.

[0028] The heat exchange assembly 200 is disposed on the surface of the heat-conducting housing 103, including an adjusting member 201 fixed to the surface of the heat-conducting housing 103, and a ceramic heat insulation sleeve 2011 fixed to the surface of the heat-conducting housing 103. The surface of the ceramic heat insulation sleeve 2011 has three through grooves 2011-1. Three sealing windows 2012 slide on the surface of the ceramic heat insulation sleeve 2011 to seal the three through grooves 2011-1. The ceramic heat insulation sleeve 2011 and the sealing windows 2012 are preferably made of alumina ceramic, which has strong high-temperature resistance, stable heat insulation performance, and high mechanical strength, making it suitable for the high-temperature environment of surgical procedures. A support block 20 is fixed to the surface of the ceramic heat insulation sleeve 2011. 13. A sliding rod 2014 slides inside the support block 2013. The other end of the sliding rod 2014 is fixed inside the sealing window 2012. Two sliding rods 2014 are fixed on each sealing window 2012. A wind cap 2015 is fixed on the surface of the sealing window 2012. By blowing gas onto the wind cap 2015, the wind cap 2015 can drive the sealing window 2012 to slide on the surface of the ceramic heat insulation sleeve 2011, thereby moving the ceramic heat insulation sleeve 2011 away from the through groove 2011-1. This allows the heat exchange plate 104 on one side of the through groove 2011-1 to come into contact with the outside gas, thereby heating the gas. When the heated gas flows through the wind cap 2015, it will flow along the guide arc on the surface of the wind cap 2015 to the surrounding area of ​​the wind cap 2015.

[0029] The heat exchange fins 104 are in close contact with one side of the sealing window 2012, so that when the sealing window 2012 moves on one side of the through groove 2011-1, multiple heat exchange fins 104 slide on one side of the sealing window 2012. As the sealing window 2012 moves, the heat exchange fins 104 are exposed to the gas one by one, and the gas is heated.

[0030] There are three sets of adjusting components 201. A first spring 202, a second spring 203, and a third spring 204 are respectively fitted on the surface of the three slide rods 2014. The elastic coefficient of the second spring 203 is greater than that of the first spring 202, and the elastic coefficient of the third spring 204 is greater than that of the second spring 203.

[0031] When the three sealing windows 2012 move away from the through slot 2011-1, they will compress the first spring 202, the second spring 203 and the third spring 204 respectively.

[0032] In the current illustrated state, when the sealing window 2012 corresponding to the first spring 202 is completely away from the through groove 2011-1, the elastic force of the second spring 203 is equal to the elastic force of the first spring 202 after compression. If the pushing force of the gas on the wind cap 2015 increases at this time, the sealing window 2012 corresponding to the second spring 203 can move away from the through groove 2011-1. As the pushing force of the gas on the wind cap 2015 increases, the sealing window 2012 corresponding to the second spring 203 is completely away from the through groove 2011-1, and the elastic force of the third spring 204 is equal to the elastic force of the second spring 203 after compression. As the force of the gas pushing the hood 2015 increases, the sealing window 2012 corresponding to the third spring 204 moves away from the through groove 2011-1, allowing the heat exchange plate 104 at the through groove 2011-1 to come into contact with the outside gas, thereby heating the gas and changing the heat exchange efficiency of the heating device. When the gas flow rate increases, the heat exchange efficiency of the device can be automatically improved, thereby improving the situation where the heating wire 102 cannot supply heat in time when the gas flow rate increases suddenly. This ensures that the heating device can still provide enough heat when the gas flow rate increases suddenly, so that the gas is heated to a temperature that meets the needs of the human body.

[0033] Example 2 Reference Figures 1-3 and Figure 6 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0034] Specifically, the heat exchange assembly 200 also includes a guide 205 disposed in the conveying housing 101, including a conveying pipe 2051 fixed to the inner wall of the conveying housing 101, the conveying pipe 2051 being made of heat insulation material, and a guide plate 2052 fixed inside the conveying pipe 2051.

[0035] The guide plate 2052 is inclined and can push the gas on one side of the inner wall of the conveying pipe 2051 toward the heat-conducting shell 103 at its center, so that the gas can fully exchange heat with the heat exchange plate 104 on the heat-conducting shell 103. Since the guide plate 2052 is inclined, the gas in the conveying pipe 2051 will rotate during the conveying process, so that the gas can flow laterally in the heat exchange plate 104, thereby exchanging heat at the root of the heat exchange plate 104 and improving the heat exchange efficiency.

[0036] By setting the guide plate 2052, the gas on one side of the inner wall of the delivery pipe 2051 can be pushed towards the wind cap 2015, so that the three wind caps 2015 are subjected to the same gas thrust, thereby satisfying the switching mode of opening the three sealing windows 2012 in sequence.

[0037] Specifically, the main component 100 also includes a flow detection element 105 disposed at the air inlet end of the conveying housing 101, including a support base 1051 fixed to the inner wall of the conveying housing 101, a support rod 1052 fixed to one side of the support base 1051, and a wind cone 1053 sliding on the surface of the support rod 1052. The wind cone 1053 is a hollow shell, which makes it easier for the gas to push the wind cone 1053 to slide on the surface of the support rod 1052, so that the wind cone 1053 moves toward the support base 1051.

[0038] Specifically, the detection component 105 also includes a blocking ring 1054 fixed to the surface of the support rod 1052. The blocking ring 1054 is used to block the wind cone 1053. A distance sensor 1055 is fixed on one side of the support base 1051. The distance sensor 1055 is used to measure the distance between the wind cone 1053 and the blocking ring 1054.

[0039] Specifically, the detection component 105 also includes a support frame 1056 fixed to the inner wall of the conveying housing 101. A fourth spring 1057 is fixed to one side of the support frame 1056. The fourth spring 1057 is currently in a normal state. The other end of the fourth spring 1057 is fixed to one side of the wind cone 1053 for pulling the wind cone 1053. When the airflow impacts the wind cone 1053, it can cause the wind cone 1053 to move towards the support seat 1051. At this time, the fourth spring 1057 is stretched. As the airflow velocity increases, the wind cone 1053 gradually moves closer to the blocking ring 1054, reducing the distance between the two, thereby reflecting the airflow velocity and determining the gas flow rate inside the conveying housing 101.

[0040] The minimum driving flow of the wind turbine cone 1053 is 0.5L / min. The displacement to flow conversion formula is: Q=k×(L0-L), where L0 is the initial distance of 50mm, L is the measured distance, k is the calibration coefficient of 0.2-0.3L / min・mm, the distance sensor accuracy is ±0.1mm, and the response time is ≤100ms.

[0041] Example 3 Specifically, the main component 100 also includes a support member 106 disposed in the heat-conducting housing 103, including a heat insulation plate 1061 fixed in the heat-conducting housing 103, a ceramic rod 1062 fixed between the two heat insulation plates 1061, and a heating wire 102 wound around the surface of the ceramic rod 1062. With the support of the ceramic rod 1062, the heating wire 102 can work stably.

[0042] Specifically, the support member 106 also includes a support tube 1063 fixed to both ends of the heat-conducting housing 103. The support tube 1063 is fixed inside the delivery tube 2051 and the delivery housing 101. The power supply wire is connected to the heating wire 102 through the internal channel of the support tube 1063 and the hole opened on the heat insulation plate 1061, so as to supply power to the heating wire 102, thereby causing the heating wire 102 to heat up.

[0043] Reference Figures 1-7 This is the third embodiment of the present invention, which is based on the first two embodiments.

[0044] Specifically, a control box 107 is fixed on the surface of the conveying housing 101. A controller is installed inside the control box 107, which can convert the data measured by the distance sensor 1055 into flow parameters. The controller can adjust the power of the heating wire 102 according to the measurement results of the distance sensor 1055. When the airflow velocity increases, the power of the heating wire 102 increases synchronously. The control box 107 is equipped with a display screen 108 and a switch 109. The switch 109 is the power control switch of the control box 107, and the display screen 108 is used to display gas flow and temperature parameters.

[0045] Specifically, the control box 107 is also equipped with a power cord 110 for supplying power to the control box 107.

[0046] Specifically, the main component 100 also includes a temperature sensor 111 disposed at the gas outlet of the conveying housing 101. The temperature sensor is a platinum resistance thermometer PT100. The temperature sensor 111 is used to detect the gas temperature at the gas outlet of the conveying housing 101. When the detected gas temperature is lower than the threshold, the controller in the control box 107 increases the power of the heating wire 102 to increase the gas temperature in the conveying housing 101. When the gas temperature detected by the temperature sensor 111 is higher than the threshold, the controller in the control box 107 reduces the power of the heating wire 102 to reduce the gas temperature in the conveying housing 101, so that the gas temperature is within the threshold.

[0047] The control of the power of the heating wire 102 by the controller is existing technology, which should be clear to those skilled in the art, and will not be described in detail here.

[0048] In summary, the beneficial effects of the present invention are as follows: 1. It can dynamically adapt to changes in gas flow rate. The gas pushes the hood 2015 to slide the sealing window 2012. Combined with the first spring 202, the second spring 203, and the third spring 204 with different elastic coefficients, the exposed area of ​​the heat exchange plate 104 changes with the increase or decrease of the flow rate. At the same time, the control box 107 adjusts the power of the heating wire 102 according to the data of the distance sensor 1055. With the closed-loop feedback of the temperature sensor 111, it ensures that the output gas temperature is stable within a suitable range, reducing the risk of hypothermia during surgery. 2. The inclined guide plate 2052 in the guide member 205 can push the gas to flow in the direction of the heat exchange shell 103 and generate rotation, so that the gas can fully contact the heat exchange plate 104, especially the heat at the root of the heat exchange plate can be efficiently utilized, greatly improving the heat exchange efficiency. At the same time, it ensures that the three wind caps 2015 are subjected to uniform force, and ensures that the sealing window 2012 opens and closes in an orderly manner according to the flow gradient.

[0049] When in use, the air inlet of the delivery housing 101 is connected to the pipe that outputs cold air from the pneumoperitoneum machine. First, turn on the switch 109 to supply power to the control box 107, so that the control box 107 supplies power to the heating wire 102, thereby preheating the heating wire 102 and keeping the heating wire 102 in a low-temperature heating state.

[0050] When the gas is output through the pipe of the insufflator, the gas enters from the air inlet of the delivery housing 101, causing the gas to impact the wind cone 1053 and drive the wind cone 1053 to gradually approach the blocking ring 1054. At this time, the distance sensor 1055 measures the change in the distance between the wind cone 1053 and the blocking ring 1054, causing the controller in the control box 107 to change the heating wire 102 to a suitable power.

[0051] When gas enters the conveying pipe 2051 inside the conveying housing 101, it pushes the wind cap 2015, causing the wind cap 2015 to drive the sealing window 2012 to squeeze the first spring 202, thereby causing the heat exchange plate 104 at the corresponding position to leak out, thus allowing the heat exchange plate 104 to heat the gas.

[0052] If the gas flow rate suddenly increases, it can push the remaining two wind caps 2015, causing the remaining two sealing windows 2012 to compress the second spring 203 and the third spring 204 respectively, thereby making the three sealing windows 2012 fully open, thus improving the heat exchange efficiency of the gas, meeting the sudden increase in heat exchange demand, and reducing the temperature fluctuation of the gas.

[0053] When the gas flow rate suddenly decreases, the first spring 202, the second spring 203 and the third spring 204 reset, causing the corresponding sealing window 2012 to close quickly. This prevents the gas from staying in the delivery pipe 2051 for too long due to the reduced gas flow rate, which could lead to excessively high gas temperature. This increases the response speed of the heating device and reduces gas temperature fluctuations.

[0054] When the gas flow rate increases or decreases, the controller in the control box 107 will synchronously change the power of the heating wire 102 to avoid insufficient heating of the heating wire 102 or excessively high temperature of the heat-conducting shell 103 at low flow rates.

[0055] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A gas heating device for preventing hypothermia during surgery, characterized in that: include, The main component (100) includes a conveying housing (101), a heating wire (102) is provided inside the conveying housing (101), a heat-conducting housing (103) is provided on the surface of the heating wire (102), and a heat exchange plate (104) is provided on the surface of the heat-conducting housing (103). A heat exchange assembly (200) is disposed on the surface of the heat-conducting housing (103), including an adjusting member (201) fixed to the surface of the heat-conducting housing (103), and a ceramic heat insulation sleeve (2011) fixed to the surface of the heat-conducting housing (103). A through groove (2011-1) is opened on the surface of the ceramic heat insulation sleeve (2011). A sealing window (2012) slides on the surface of the ceramic heat insulation sleeve (2011). A support block (2013) is fixed on the surface of the ceramic heat insulation sleeve (2011). A slide rod (2014) slides in the support block (2013). The other end of the slide rod (2014) is fixed in the sealing window (2012). A wind cap (2015) is fixed on the surface of the sealing window (2012). There are three sets of adjusting components (201). A first spring (202), a second spring (203), and a third spring (204) are respectively sleeved on the surface of the three slide rods (2014). The elastic coefficient of the second spring (203) is greater than that of the first spring (202), and the elastic coefficient of the third spring (204) is greater than that of the second spring (203).

2. The gas heating device for preventing hypothermia during surgery as described in claim 1, characterized in that: The heat exchange assembly (200) also includes a guide (205) disposed in the conveying housing (101), including a conveying pipe (2051) fixed to the inner wall of the conveying housing (101), and a guide plate (2052) fixed inside the conveying pipe (2051).

3. The gas heating device for preventing hypothermia during surgery as described in claim 2, characterized in that: The main component (100) also includes a flow detection element (105) disposed at the air inlet end of the conveying housing (101), including a support base (1051) fixed to the inner wall of the conveying housing (101), a support rod (1052) fixed on one side of the support base (1051), and a wind cone (1053) sliding on the surface of the support rod (1052).

4. The gas heating device for preventing hypothermia during surgery as described in claim 3, characterized in that: The detection element (105) also includes a blocking ring (1054) fixed to the surface of the support rod (1052), and a distance sensor (1055) is fixed on one side of the support base (1051).

5. The gas heating device for preventing hypothermia during surgery as described in claim 4, characterized in that: The detection component (105) also includes a support frame (1056) fixed to the inner wall of the conveying housing (101), a fourth spring (1057) fixed on one side of the support frame (1056), and the other end of the fourth spring (1057) fixed to one side of the wind cone (1053).

6. The gas heating device for preventing hypothermia during surgery as described in claim 5, characterized in that: The main component (100) also includes a support (106) disposed in the heat-conducting housing (103), including a heat insulation plate (1061) fixed in the heat-conducting housing (103), and a ceramic rod (1062) fixed between the two heat insulation plates (1061).

7. The gas heating device for preventing hypothermia during surgery as described in claim 6, characterized in that: The support member (106) also includes a support tube (1063) fixed to both ends of the heat-conducting housing (103), and the support tube (1063) is fixed inside the delivery tube (2051) and the delivery housing (101).

8. The gas heating device for preventing hypothermia during surgery as described in claim 1 or 7, characterized in that: A control box (107) is fixed on the surface of the conveying housing (101), and a display screen (108) and a switch (109) are provided on the control box (107).

9. The gas heating device for preventing hypothermia during surgery as described in claim 8, characterized in that: The control box (107) is also equipped with a power cord (110).

10. The gas heating device for preventing hypothermia during surgery as described in claim 9, characterized in that: The main component (100) also includes a temperature sensor (111) disposed at the air outlet end of the delivery housing (101).

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