Medical breathing tube

Abstract

The utility model discloses a medical breathing tube which comprises a heat preservation layer covering the wall of the whole breathing tube, a heating layer arranged on the inner side of the heat preservation layer and used for heating gas in the breathing tube, and a sealing layer used for sealing and uniformizing the temperature of the heating layer. The sealing layer covers the inner wall of the whole breathing tube; the heat preservation layer covering the wall of the whole breathing tube is adopted, the problem that heat loss at the spiral ribs is too fast due to the fact that the heat preservation layer of an existing breathing tube is spirally wound between the spiral ribs is effectively solved, meanwhile, the sealing layer is adopted to cover the inner wall of the whole breathing tube, and the phenomenon that the heat loss is too fast in the using process can be effectively avoided. The problems that the heating wire is exposed in gas and short circuit is caused due to the fact that the fixing layer cracks are solved, the sealing layer is made of medical soft rubber high-elasticity materials and has good flexibility and heat conductivity, heat generated by the heating wire can be rapidly diffused to the whole sealing layer, the heat conduction area is increased, the gas in the pipe is evenly heated at the same time, and the service life of the heating wire is prolonged. And the heating and heat preservation effects are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a medical breathing tube. Background Art

[0002] In clinical medical applications, using a respiratory humidification device to humidify and heat the oxygen used by patients is a crucial step in treatment. To ensure the appropriate temperature and humidity of the oxygen inhaled by the patient, the medical heated breathing circuit connecting the respiratory humidification device to the patient is typically designed with heating and insulation functions.

[0003] Existing medical heated breathing tubes often use a heating wire spiral built into the spiral ribs of the medical heated breathing tube; the insulation layer is spirally wrapped between the spiral ribs. In other words, there is no insulation layer on the spiral ribs with the heating wire, which can easily lead to excessive heat loss at this location, and the generated water vapor condenses into water droplets, thereby affecting the patient's oxygen therapy.

[0004] During long-term use, once the spiral ribs break, the heating wire will be exposed to the gas. The heating wire is in direct contact with the gas with a certain temperature and humidity, which is prone to short circuit. Moreover, the heating wires are concentrated on the spiral ribs. During the heating process, the gas in the tube cannot be heated at the same time, reducing the heating effect on the gas.

[0005] The above problems are in urgent need of improvement and need to be resolved. Utility Model Content

[0006] In order to overcome the shortcomings of the existing technology, a medical breathing tube is now proposed.

[0007] The technical solution adopted by the present invention is: to provide a medical breathing tube, including a thermal insulation layer covering the entire wall of the breathing tube, a heating layer arranged on the inner side of the thermal insulation layer to heat the air in the breathing tube, and a sealing layer for equalizing the temperature of the heating layer; the sealing layer covers the entire inner wall of the breathing tube.

[0008] Preferably, the sealing layer is made of medical soft rubber with high elasticity.

[0009] Preferably, the thermal insulation layer includes a main thermal insulation component spirally wound on the breathing tube, and a secondary thermal insulation component wound between threads of two adjacent main thermal insulation components; the threads of the main thermal insulation component and the secondary thermal insulation component are connected by extrusion contact.

[0010] Preferably, the main insulation component is a main pipe.

[0011] Preferably, the secondary thermal insulation component is a secondary pipe.

[0012] Preferably, the heating layer comprises a plurality of heating wires, and a fixed layer is used to wrap the plurality of heating wires; the heating wires are spirally wound and arranged inside the fixed layer.

[0013] Preferably, there are at least two heating wires.

[0014] Preferably, the sealing layer is tightly attached to the inner wall of the fixing layer.

[0015] Beneficial effects of the utility model:

[0016] The utility model adopts a thermal insulation layer covering the entire wall of the breathing tube, which effectively solves the problem that the thermal insulation layer of the existing breathing tube is spirally wrapped between the spiral ribs, resulting in excessive heat loss at the spiral ribs and the generated water vapor condensing into water droplets, affecting the patient's oxygen therapy. At the same time, the sealing layer is used to cover the entire inner wall of the breathing tube, which can effectively prevent the fixing layer from cracking during use, causing the heating wire to be exposed to the gas and causing a short circuit. The sealing layer is made of medical soft rubber with high elasticity, which has good flexibility and thermal conductivity. It can quickly diffuse the heat generated by the heating wire to the entire sealing layer, increase the heat conduction area, make the gas in the tube evenly heated at the same time, and improve the heating and thermal insulation effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of a medical breathing tube according to the present invention;

[0018] Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure;

[0019] Figure 3 for Figure 2 Schematic diagram of the enlarged structure of A in the figure. DETAILED DESCRIPTION

[0020] The present invention will be further described below with reference to the accompanying drawings.

[0021] Specifically, such as 1 to Figure 3 As shown, a medical breathing tube is provided, comprising an insulation layer 10 covering the entire wall of the breathing tube, a heating layer 20 arranged on the inner side of the insulation layer 10 to heat the air in the breathing tube, and a sealing layer 30 for equalizing the temperature of the heating layer 20; the sealing layer 30 covers the entire inner wall of the breathing tube.

[0022] like Figure 2 and Figure 3 As shown, the sealing layer 30 can be made of a medical soft rubber high elastic material with good flexibility and thermal conductivity. The use of medical soft rubber to cover the entire inner wall of the breathing tube can quickly distribute the heat generated by the heating layer 20 to the entire sealing layer 30, increase the heat conduction area, and make the gas in the tube evenly heated at the same time, thereby improving the heating effect of the gas. Under the heat preservation effect of the heat preservation layer 10, the gas in the tube can not only be heated quickly and evenly, but also not easily cooled.

[0023] Furthermore, the insulation layer 10 includes a main insulation component 11 spirally wound on the breathing tube, and a secondary insulation component 12 wound between the threads of two adjacent main insulation components 11; the threads of the main insulation component 11 and the secondary insulation component 12 are connected by extrusion contact.

[0024] Furthermore, the main heat-insulating component 11 is a main pipe.

[0025] Furthermore, the secondary thermal insulation member 12 is a secondary tube.

[0026] like Figure 2 and Figure 3 As shown, in order to improve the thermal insulation effect of the thermal insulation layer 10, inert gas can be filled into the main pipe and the secondary pipe, which has a better thermal insulation effect than air.

[0027] Furthermore, the heating layer 20 includes a plurality of heating wires 21 and a fixed layer 22 for wrapping the plurality of heating wires 21 ; the heating wires 21 are spirally wound and arranged inside the fixed layer 22 .

[0028] The heating wire 21 generates heat when energized. In the prior art, the heating wire 21 is spirally wound and arranged inside the fixed layer 22, and there is a certain distance between the coils. Initially, the heat is concentrated on the heating wire 21, resulting in uneven heating of the gas and poor heating effect. Therefore, a sealing layer 30 is provided inside the fixed layer 22, so that the heat can be quickly transferred to the entire sealing layer 30 first, and then the sealing layer 30 can uniformly heat the gas in the breathing tube at the same time.

[0029] Furthermore, there are at least two heating wires 21 .

[0030] Furthermore, the sealing layer 30 is tightly attached to the inner wall of the fixing layer 22 .

[0031] The heating wires 21 may be provided in two, three, or four numbers depending on different equipment. In this embodiment, there are two heating wires 21 .

[0032] like Figures 1 to 3 As shown, the fixed layer 22 is a tube wall with spiral ribs ( Figure 3 As shown), and the spiral ribs are arranged at equal intervals ( Figure 2 As shown), the heating wire 21 is arranged inside the spiral rib ( Figure 2 and Figure 3As shown in the figure, an insulation layer 10 is added according to the spiral ribs, and the main pipe is wrapped between the spiral rib ribs (this process is the insulation measure taken by existing breathing tubes). In order to prevent the spiral ribs from having no insulation measures, the present application adds a secondary pipe between the main pipe rings. At this time, the secondary pipe is arranged directly above the spiral ribs and is in contact with the main pipe by extrusion. This design makes it possible to form an integral insulation layer 10 without a gap between the main pipe and the secondary pipe, which can effectively prevent the breathing tube from losing heat too quickly at the spiral ribs.

[0033] The heating wire 21 is arranged inside the fixed layer 22. During the long-term heating and bending process of the breathing tube, the fixed layer 22 is likely to crack, thereby exposing the heating wire 21 to the gas in the breathing tube. The heating wire 21 comes into contact with moisture, which is likely to cause a short circuit; the sealing layer 30 is tightly attached to the inner wall of the fixed layer 22. The sealing layer 30 has a sealing effect on the fixed layer 22. Even if the fixed layer 22 cracks, the normal use of the heating wire 21 can be guaranteed. At the same time, the sealing layer 30 is a medical soft rubber high elastic material with good flexibility and thermal conductivity, which can ensure that the heat generated by the heating wire 21 is quickly distributed to all parts of the sealing layer 30, thereby increasing the heat conduction area, making the gas in the tube evenly heated at the same time, and improving the heating and heat preservation effect of the gas.

[0034] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, from all perspectives, the embodiments should be regarded as illustrative and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes that fall within the meaning and range of equivalents of the claims be included in the present invention. Any reference signs in the claims should not be construed as limiting the claim to which they relate.

Claims

1. A medical breathing tube, characterized in that: The invention comprises a heat preservation layer (10) covering the entire wall of the breathing tube, a heating layer (20) arranged inside the heat preservation layer (10) for heating the gas in the breathing tube, and a sealing layer (30) for balancing the temperature of the heating layer (20); the sealing layer (30) covers the entire inner wall of the breathing tube; the sealing layer (30) is made of a medical soft rubber high elastic material; The thermal insulation layer (10) comprises a main thermal insulation component (11) spirally wound on the breathing tube, and a secondary thermal insulation component (12) wound between the threads of two adjacent main thermal insulation components (11); the threads of the main thermal insulation component (11) and the secondary thermal insulation component (12) are connected by extrusion contact.

2. A medical breathing tube according to claim 1, characterized in that: The main heat-insulating component (11) is a main pipe.

3. A medical breathing tube according to claim 2, characterized in that: The secondary heat-insulating component (12) is a secondary pipe.

4. A medical breathing tube according to claim 3, characterized in that: The heating layer (20) comprises a plurality of heating wires (21) and a fixed layer (22) for wrapping the plurality of heating wires (21); the heating wires (21) are spirally wound and arranged inside the fixed layer (22).

5. The medical breathing tube according to claim 4, characterized in that: There are at least two heating wires (21).

6. The medical breathing tube according to claim 5, characterized in that: The sealing layer (30) is tightly attached to the inner wall of the fixing layer (22).

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