Heating module of carbon dioxide supply device

Abstract

The utility model provides a heating module of a carbon dioxide supply device, which comprises a heating block mounting seat, a gas inlet and a gas outlet which are communicated with the heating block mounting seat, and a heating assembly arranged in the heating block mounting seat, the heating generator is connected with the heating module, the temperature measuring unit is arranged in the heating block mounting seat, the heating generator and the temperature measuring unit are electrically connected with the control panel, and the power supply unit supplies power to the control panel, the heating generator and the temperature measuring unit. The carbon dioxide gas is heated, so that the pain of a patient and the surgical risk in the surgical process are reduced, and the problem that water vapor is liquefied and condensed on an endoscope lens due to low-temperature gas is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of medical devices, in particular to a heating module of a carbon dioxide gas delivery device. BACKGROUND

[0002] When a doctor uses an endoscope to diagnose and treat a patient, the doctor will inject gas into the patient's body through the gas delivery hole of the endoscope to dilate the patient's stomach, intestines and other parts, so as to provide sufficient vision and space for the operation, and facilitate the doctor's observation.

[0003] At present, many gas delivery devices on the market deliver gas that has not been heated, and the temperature is lower than the body temperature of the human body. Such gas with a temperature lower than the body temperature of the human body is easy to cause discomfort to the patient during the operation, increase the probability of inducing the patient to shiver, and increase the risk of the operation and the pain of the patient. At the same time, when the gas with a temperature lower than the body temperature of the human body enters the human body, it may cause water vapor to liquefy and condense on the lens of the endoscope, affecting the doctor's vision during the operation and affecting the progress of the operation.

[0004] Therefore, those skilled in the art need to improve the existing structure to overcome the above-mentioned defects. CONTENT OF THE INVENTION

[0005] The main purpose of the present application is to provide a heating module of a carbon dioxide gas delivery device, which reduces the pain and risk of the patient during the operation by heating the carbon dioxide gas, and reduces the problem of water vapor liquefying and condensing on the lens of the endoscope caused by low-temperature gas.

[0006] In order to achieve the above-mentioned purpose, in a first aspect, the present application provides a heating module of a carbon dioxide gas delivery device, which comprises a heating block mounting seat, a gas inlet and a gas outlet in communication with the heating block mounting seat, a heating assembly arranged in the heating block mounting seat, a control panel, a power supply module, a heating generator connected with the heating module, and a temperature measurement unit arranged in the heating block mounting seat. The heating generator and the temperature measurement unit are electrically connected with the control panel, and the power supply module supplies power to the control panel, the heating generator and the temperature measurement unit.

[0007] Optionally, the heating assembly comprises a heating block, and the inner side wall of the heating block is provided with a plurality of heating fins.

[0008] Optionally, a first sealing element is arranged between the heating block and the heating block mounting seat.

[0009] Optionally, a second sealing element is arranged between the temperature measurement unit and the heating block mounting seat.

[0010] Optionally, the heating generator is a heating resistor.

[0011] Optionally, a heat-conducting medium is arranged between the heating generator and the heating block.

[0012] Optionally, the heat-conducting medium is heat-conducting silicone grease.

[0013] Optionally, a temperature protection device is further included, which is arranged in series with the heating generator and is in close contact with the heating generator.

[0014] Optionally, the temperature measuring unit comprises a temperature measuring plate and at least two temperature measuring resistors fixedly arranged on the temperature measuring plate.

[0015] Optionally, the gas inlet and the gas outlet are both provided with quick connectors.

[0016] Compared with the prior art, the heating module of the carbon dioxide gas feeding device has the following beneficial effects:

[0017] 1. The heating module can heat the delivered gas, thereby reducing the pain and operation risk of the patient during the operation and the problem of water vapor condensation on the endoscope lens caused by low-temperature gas.

[0018] 2. The present application solves the problem of low heating efficiency of some gas feeding devices, and can reach the set temperature even when the gas flow rate is high.

[0019] 3. By increasing the temperature protection device, a hardware temperature control means is adopted in addition to the software temperature control means, that is, when the original software control means fails, the temperature of the heating resistor continues to rise, and when the set temperature of the temperature protection device is reached, the temperature protection device will physically deform, causing the circuit to be disconnected, thereby cutting off the current through the heating module and preventing accidents. BRIEF DESCRIPTION OF DRAWINGS

[0020] The accompanying drawings, which form a part of this application, are included to provide a further understanding of the application and are incorporated in and constitute a part of this application. The drawings illustrate embodiments of the present application and, together with the description, serve to explain the principles of the present application. In the drawings:

[0021] Figure 1 is a schematic view of the present application Figure 1 ;

[0022] Figure 2 is a schematic view of the present application Figure 2 ;

[0023] Figure 3 is an exploded view of the present application.

[0024] Wherein: 1, heating block mounting seat, 2, heating block, 3, heating fin plate, 4, heating resistance, 5, temperature protection device, 6, temperature measuring plate, 7, quick connector; 8, control panel; 9, first sealing element; 10, second sealing element; 11, heat-conducting silicone grease. DETAILED DESCRIPTION

[0025] In order to make the personnel in the technical field better understand the scheme of the present application, the technical scheme in the embodiments of the present application will be clearly and completely described below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should belong to the scope of protection of the present application.

[0026] It should be noted that the terms "first", "second" and the like in the specification and claims of the present application and the above-described drawings are used to distinguish similar objects, and do not necessarily indicate a specific order or a chronological sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0027] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not intended to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0028] In addition, in addition to being used to indicate the orientation or positional relationship, the above-mentioned part of the terms may also be used to indicate other meanings, for example, the term "upper" may also be used to indicate a certain dependent relationship or connection relationship in some cases. For those skilled in the art, the specific meaning of these terms in the present application can be understood according to the specific circumstances.

[0029] In addition, the meaning of the term "a plurality of" should be two and more than two.

[0030] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0031] like Figures 1-3 As shown, a heating module of a carbon dioxide gas delivery device includes a heating block mounting base 1 with a heating chamber, a gas inlet disposed on one side of the heating block mounting base 1 and connected to the heating chamber, a gas outlet disposed on the other side of the heating block mounting base 1 and connected to the heating chamber, a heating component disposed in the heating chamber, and a control board 8, a power supply module, a heating generator connected to the heating module, and a temperature measuring unit disposed in the heating chamber. The heating generator and the temperature measuring unit are both electrically connected to the control board 8. The power supply module supplies power to the control board 8, the heating generator, and the temperature measuring unit. The heating generator is preferably a heating resistor 4.

[0032] The heating assembly includes a heating block 2. During installation, the heating block 2 is placed inside the heating block base 1, that is, placed inside the heating cavity. In this embodiment, the outer side of the heating block 2 is completely in contact with the heating cavity, that is, the heating cavity is equivalent to the mounting cavity for placing the heating block. In addition, in order to further ensure airtightness, a first sealing element is provided between the heating block 2 and the heating block mounting base 1.

[0033] To ensure uniform heating and high heating efficiency, the heating block 2 has an internal cavity, i.e., it is a hollow structure. Several heating fins are provided on the inner wall of the heating block 2. The gas inlet and the gas outlet are both connected to its cavity. Gas entering through the gas inlet is heated within the cavity and then discharged through the gas outlet. Preferably, a heat-conducting medium, such as thermal grease 11, is provided between the heating generator and the heating block 2. This method not only simplifies the heating process but also ensures rapid heating. The heating resistor 4 transfers heat to the heating block 2 through the heat-conducting medium. The heating block 2 has numerous heating fins, which greatly increases the contact area with air and improves the heating speed.

[0034] To further ensure airtightness, a second sealing element is provided between the temperature measuring unit and the heating block mounting base 1. In this embodiment, the first sealing element and the second sealing element are preferably sealing rings.

[0035] In order to control temperature more accurately and prevent software temperature control from failing, the technical scheme further comprises a temperature protection device 5, which is arranged in series with the heating generator and is attached to the heating generator. The temperature protection device 5 can be of a bimetallic strip type, a thermistor type, a thermocouple type, etc. In the embodiment, the bimetallic strip type is preferred. The bimetallic strip is composed of two metal strips with different thermal expansion coefficients. When the temperature rises, the two metal strips will deform to different degrees due to the different thermal expansion coefficients, causing the bimetallic strip to bend. When the temperature reaches the set value, the bending degree is sufficient to cause the contact connected thereto to be disconnected or closed, thereby cutting off or connecting the circuit, and achieving temperature protection of the equipment. When the temperature decreases, the bimetallic strip returns to its original state, and the contact is also reset.

[0036] The temperature measuring unit comprises a temperature measuring plate 6 and at least two temperature measuring resistors fixedly arranged on the temperature measuring plate 6.

[0037] During temperature control, when the temperature received by the control panel 8 reaches the set value, the control panel 8 actively closes the heating, i.e. stops supplying power to the heating resistor 4. In addition, when the values measured by the two temperature measuring resistors on the temperature measuring plate 6 differ greatly, the heating is actively closed. When both software controls fail, when the surface temperature of the heating block 2 assembly reaches the set value of the temperature protection device 5, physical deformation will occur in the temperature protection device 5, cutting off the circuit and closing the heating function, thereby achieving multiple protection.

[0038] In order to facilitate connection with the gas supply pipe, the gas inlet and the gas outlet are both provided with quick plug connectors 7. The reduced pressure gas enters the heating module through one side quick plug connector 7 and flows out through the other side quick plug connector 7.

[0039] The working process of the heating module is as follows: when the heating function is turned on, the control board controls the power supply module to supply power to the heating resistor 4, at this time the heating resistor 4 generates heat, the heat is transmitted to the heating block 2 through the heat-conducting silicone grease 11, the temperature of the heating block 2 rises, when the gas enters the heating block 2 from the quick connector at the gas inlet, the heating fins on the heating block 2 continuously emit heat to heat the gas, the heated gas flows through the temperature measuring plate 6 and the quick connector on the other side and flows out from the gas outlet, in this process, the temperature measuring plate 6 transmits the collected temperature information to the control board 8, the control board 8 compares the collected temperature information with the preset temperature value, if the temperature at this time is less than the preset temperature value, the control board 8 controls the heating block 2 to continue heating, if the temperature at this time is equal to or slightly greater than the preset temperature value, the control power supply module cuts off the current of the heating resistor 4 to stop heating. In addition, since the heated gas flows through the temperature measuring plate 6, and the two heating resistors 4 on the temperature measuring plate 6 measure the temperature of the hot gas, when the temperature values measured by the two heating resistors 4 are significantly different, it indicates that the heating module is malfunctioning at this time, the control board 8 controls the power supply module to stop supplying power to the heating resistor 4, that is, to stop heating. Finally, if the software control fails and the temperature abnormally rises, when the temperature protection device 5 detects that the temperature on the heating block 2 reaches the set value, the internal spring will physically deform to cut off the circuit and stop heating.

[0040] The above only describes the preferred embodiments of the present application and is not used to limit the present application. Those skilled in the art can make various modifications and changes to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application. The above only describes the preferred embodiments of the present application and is not used to limit the present application. Those skilled in the art can make various modifications and changes to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A heating module for a carbon dioxide delivery device, characterized in that, The heating block mounting seat, the gas inlet and the gas outlet in communication with the heating block mounting seat, the heating assembly arranged in the heating block mounting seat, the control panel, the power supply module, the heating generator connected with the heating module, the temperature measuring unit arranged in the heating block mounting seat, the heating generator and the temperature measuring unit are electrically connected with the control panel, and the power supply module supplies power for the control panel, the heating generator and the temperature measuring unit.

2. A heating module for a carbon dioxide gas delivery device as defined in claim 1, characterized in that: The heating assembly comprises a heating block, and the inner side wall of the heating block is provided with a plurality of heating fins.

3. A heating module for a carbon dioxide gas delivery apparatus as defined in claim 2, wherein: A first sealing element is arranged between the heating block and the heating block mounting seat.

4. The heating module of a carbon dioxide gas delivery apparatus of claim 1, wherein: A second sealing element is arranged between the temperature measuring unit and the heating block mounting seat.

5. The heating module of a carbon dioxide gas delivery apparatus of claim 1, wherein: The heating generator is a heating resistor.

6. A heating module for a carbon dioxide gas delivery apparatus as defined in claim 2, wherein: A heat-conducting medium is arranged between the heating generator and the heating block.

7. A heating module for a carbon dioxide gas delivery apparatus as defined in claim 6, wherein: The heat-conducting medium is heat-conducting silicone grease.

8. The heating module of a carbon dioxide gas delivery apparatus of claim 1, wherein: A temperature protection device is further arranged, the temperature protection device is arranged in series with the heating generator, and the temperature protection device is attached to the heating generator.

9. The heating module of a carbon dioxide gas delivery apparatus of claim 1, wherein: The temperature measuring unit comprises a temperature measuring plate and at least two temperature measuring resistors fixedly arranged on the temperature measuring plate.

10. The heating module of a carbon dioxide gas delivery apparatus of claim 1, wherein: The gas inlet and the gas outlet are both provided with quick plug connectors.

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