Thermal insulation pipe with foaming material
By incorporating a low thermal conductivity foaming ring and a heating wire spiral structure on the outer layer of the breathing tubing in the oxygen therapy device, the problems of temperature loss and condensation are solved, thus achieving stability and safety in oxygen delivery.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN RONGRUI MEDICAL EQUIP CO LTD
- Filing Date
- 2025-05-12
- Publication Date
- 2026-05-12
AI Technical Summary
Existing oxygen therapy equipment's breathing tubing is prone to temperature loss and condensation in low-temperature environments, affecting oxygen delivery and potentially causing breathing difficulties or even danger to patients.
It adopts an outer foaming ring on the outside of the inner pipeline and a threaded rib structure with embedded heating wire. The outer foaming ring is composed of multiple air bubbles, and its thermal conductivity is lower than that of the inner pipeline. It forms an air layer to maintain a constant temperature and reduce the generation of condensate.
It effectively maintains a constant temperature of the air-oxygen mixture in the pipeline, reduces temperature loss and condensation, and ensures the safety and effectiveness of oxygen delivery.
Smart Images
Figure CN224220545U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of medical device technology, specifically to an insulated pipe with foamed material. Background Technology
[0002] In the medical field, oxygen therapy is one of the most commonly used treatments in clinical practice, and it is used to treat hypoxia caused by various reasons.
[0003] Inhaling high concentrations of oxygen increases the dissolved oxygen in the blood plasma, thereby improving tissue oxygenation and promoting metabolism. Common oxygen therapy methods include: nasal cannula and nasal oxygen therapy, face mask oxygen therapy, endotracheal tube oxygen therapy, electronic pulsed oxygen therapy, mechanical ventilation, and hyperbaric oxygen therapy. Nasal cannulas and face masks, as medical equipment used in oxygen therapy, play a significant role in medical settings such as emergency rooms, operating rooms, general wards, and ICUs. They are used to alleviate hypoxia symptoms in patients with acute respiratory distress and maintain vital sign balance. Patients with chronic respiratory diseases such as asthma can also receive necessary oxygen support through nasal cannulas and face masks. They are also used for pre- and post-operative care, helping patients recover quickly and reducing postoperative complications. Furthermore, they can provide timely oxygen supplementation to reduce the impact of altitude sickness when entering high-altitude areas.
[0004] Therefore, to meet practical needs, a thermal insulation pipe with foamed material is provided. Summary of the Invention
[0005] To address the shortcomings of existing technologies, the purpose of this application is to provide an insulated pipe with foamed material. Through multiple air bubbles in the outer foam ring outside the inner pipe and the threaded ribs with embedded heating wires, the temperature of the air-oxygen mixture inside the insulated pipe is kept constant, reducing temperature loss and condensation, thereby meeting the insulation requirements of the pipe.
[0006] To achieve the above objectives, the technical solution adopted in this application is as follows:
[0007] This application provides a thermal insulation pipe with foamed material, the thermal insulation pipe comprising:
[0008] Inner piping;
[0009] An outer foaming ring spirally wound around the outside of the inner pipeline;
[0010] A spiral rib is wound around the outside of the inner layer pipeline, and a heating wire is embedded in the spiral rib;
[0011] The outer foam ring and the threaded rib are coaxially and spirally wound around the outside of the inner pipeline;
[0012] The thermal conductivity of the outer foam ring is lower than that of the inner pipe.
[0013] Based on the above technical solution, the outer foaming ring is composed of multiple air bubbles arranged in a row.
[0014] Based on the above technical solution, the outer foam ring is a spiral ring structure made of foam material.
[0015] Based on the above technical solution, the cross-section of the outer foam ring is semi-circular.
[0016] Based on the above technical solution, the cross-sectional sizes of the bubbles in the outer foaming ring are not equal.
[0017] Based on the above technical solution, the heights of the outer foam ring and the threaded rib relative to the outer surface of the inner pipeline are inconsistent.
[0018] Based on the above technical solution, the outer foam ring and the threaded rib are at the same height relative to the outer surface of the inner pipeline.
[0019] Based on the above technical solution, the spacing between the bubbles in the outer foaming ring is configured such that an air layer can be formed inside the bubbles in the outer foaming ring when the heating wire of the threaded rib is heated.
[0020] Compared with the prior art, the advantages of this application are:
[0021] This application utilizes multiple air bubbles within the outer foaming ring on the outer side of the inner pipeline and threaded ribs embedded with heating wires to maintain a constant temperature of the air-oxygen mixture inside the insulated pipeline, reducing temperature loss and condensation, thereby meeting the pipeline's insulation requirements. Attached Figure Description
[0022] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0023] Figure 1 This is a schematic diagram of the structure of a thermal insulation pipe with foamed material according to an embodiment of this application;
[0024] Figure 2 This is a front view of a thermal insulation pipe with foamed material according to an embodiment of this application;
[0025] Figure 3 This is a side view of an insulation pipe with foamed material according to an embodiment of this application;
[0026] Figure 4 This is a cross-sectional view of a thermal insulation pipe with foamed material according to an embodiment of this application;
[0027] Figure 5 This is a detailed cross-sectional view of a thermal insulation pipe structure with foamed material according to an embodiment of this application;
[0028] In the diagram: 1. Inner tubing; 2. Outer foaming ring; 3. Threaded rib; 4. Heating wire; A. Breathing tube inlet; B. Breathing tube outlet. Detailed Implementation
[0029] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0030] The embodiments of this application will be further described in detail below with reference to the accompanying drawings.
[0031] This application provides a thermal insulation pipe with foamed material. Through multiple air bubbles in the outer foam ring outside the inner pipe and the threaded ribs with embedded heating wires, the temperature of the air-oxygen mixture in the thermal insulation pipe is kept constant, reducing temperature loss and condensation, thereby meeting the insulation requirements of the pipe.
[0032] To achieve the aforementioned technical effects, the overall concept of this application is as follows:
[0033] An insulation pipe for reducing condensate generation, the insulation pipe comprising:
[0034] The insulation pipe includes:
[0035] Inner layer piping 1;
[0036] The outer foaming ring 2 is spirally wound around the outside of the inner pipe 1;
[0037] A threaded rib 3 is spirally wound around the outside of the inner layer pipe 1, and a heating wire 4 is embedded in the threaded rib 3;
[0038] The outer foam ring 2 and the threaded rib 3 are coaxially and spirally wound around the outside of the inner pipeline 1;
[0039] The thermal conductivity of the outer foam ring 2 is lower than that of the inner pipe 1.
[0040] The embodiments of this application will be further described in detail below with reference to the accompanying drawings.
[0041] See Figures 1-5 As shown, this application embodiment provides a thermal insulation pipe with foamed material, the thermal insulation pipe comprising:
[0042] Inner layer piping 1;
[0043] The outer foaming ring 2 is spirally wound around the outside of the inner pipe 1;
[0044] A threaded rib 3 is spirally wound around the outside of the inner layer pipe 1, and a heating wire 4 is embedded in the threaded rib 3;
[0045] The outer foam ring 2 and the threaded rib 3 are coaxially and spirally wound around the outside of the inner pipeline 1;
[0046] The thermal conductivity of the outer foam ring 2 is lower than that of the inner pipe 1.
[0047] In this embodiment, multiple air bubbles in the outer foaming ring outside the inner pipeline and the threaded ribs with embedded heating wires are used to maintain a constant temperature of the air-oxygen mixture in the insulation pipeline, reduce temperature loss and condensation, thereby meeting the insulation requirements of the pipeline.
[0048] Furthermore, the outer foam ring 2 is composed of multiple air bubbles arranged in a row.
[0049] Furthermore, the outer foam ring 2 is a spiral ring structure made of foam material.
[0050] Furthermore, the cross-section of the outer foam ring 2 is semi-circular.
[0051] Furthermore, the cross-sectional sizes of the bubbles within the outer foaming ring 2 are not equal.
[0052] Furthermore, the outer foam ring 2 and the threaded rib 3 are at different heights relative to the outer surface of the inner pipeline 1.
[0053] Furthermore, the outer foam ring 2 and the threaded rib 3 are at the same height relative to the outer surface of the inner pipeline 1.
[0054] Furthermore, the spacing within the bubbles of the outer foaming ring 2 is configured such that an air layer can be formed within the bubbles of the outer foaming ring 2 when the heating wire of the threaded rib 3 is heated.
[0055] Specifically, this insulated tube, as an important component of medical equipment such as nasal oxygen cannulas and masks, can be connected to a ventilator via the nasal oxygen cannula or mask to deliver a high-concentration mixture of heated air and oxygen to the patient. The nasal oxygen cannula acts as an interface connecting the respiratory gas supply line to the human body. This improves blood oxygen saturation, increases arterial oxygen partial pressure, enhances ventilation function, and reduces respiratory energy expenditure, thus achieving the goal of oxygen therapy for the patient.
[0056] It should be noted that traditional high-flow nasal oxygen cannulas mainly consist of three parts: the nasal oxygen cannulas inlet, the nasal oxygen cannulas air supply end, and the nasal oxygen cannulas patient connection end. The nasal oxygen cannulas inlet includes: a conversion connector, a connector inner core, and a hanging cord; the nasal oxygen cannulas patient connection end includes: a bend connector, a rotating ring, the nasal oxygen cannulas body, a connecting and fixing buckle, and a headband; the nasal oxygen cannulas air supply end includes: the breathing tubing, a guide ring, etc. Among them, the breathing tubing of the air supply end of nasal oxygen cannulas commonly used in the market is generally a single-layer thin-walled spiral tube, which consists of a bottom membrane wrapped with a layer of threaded ribs.
[0057] An overly simplistic breathing tubing design with thin walls leads to rapid heat loss. This causes condensation to accumulate when the heated and humidified air-oxygen mixture passes through, especially during prolonged nighttime use or in cold winter temperatures, affecting oxygen delivery. Excessive condensation can then enter the patient's nasal respiratory system, causing breathing difficulties and potentially life-threatening situations.
[0058] Patients who require the use of ventilators connected to masks or nasal cannulas for various reasons may experience breathing difficulties or even danger due to condensation in the breathing tubing. The insulating tubing provided in this application addresses this potential danger when patients use these medical devices, thus protecting their basic rights and safety.
[0059] Furthermore, the cross-section of the outer foam ring 2 is bubble-shaped.
[0060] Furthermore, the outer foam ring 2 is composed of multiple air bubbles arranged in a row.
[0061] Furthermore, the outer foam ring 2 is made of a foaming material.
[0062] Furthermore, the cross-section of the bubbles in the outer foaming ring 2 is semi-circular.
[0063] Furthermore, the outer foam ring 2 and the threaded rib 3 are coaxially spirally wound around the outside of the inner pipeline.
[0064] Furthermore, the cross-sectional sizes of the bubbles within the outer foaming ring 2 are not equal.
[0065] Furthermore, the outer foam ring 2 and the threaded rib 3 are at the same height relative to the outer surface of the inner pipeline 1.
[0066] Furthermore, the spacing within the bubbles of the outer foaming ring 2 is configured such that an air layer can be formed within the bubbles of the outer foaming ring 2 when the heating wire of the threaded rib 3 is heated.
[0067] Based on the embodiments of this application, an insulated pipe with foamed material is provided. Since heat transfer in air is less efficient than in solids, this effectively solves the problem of heat transfer and diffusion of the gas flowing through the insulated breathing tube during operation, which could lead to excessively high temperatures in the breathing tube and burns to the patient's skin. Simultaneously, it prevents indirect contact between the hot air inside the tube and the cold air outside, thereby preventing the condensation of the heated and humidified air-oxygen mixture inside the tube, which would then accumulate on the inner wall of the tube.
[0068] It should be noted that the technical solutions of the embodiments of this application also have the following technical details:
[0069] The thermal conductivity of the outer foam ring 2 is different from that of the inner pipe 1, and the thermal conductivity of the outer foam ring 2 is lower than that of the inner pipe 1.
[0070] The outer foaming ring 2 has a bubble-shaped cross-section, which can be elliptical or circular.
[0071] The outer foaming ring 2 is spirally wound and coated on the outside of the inner pipeline 1;
[0072] The height of the outer foam ring 2 is higher or lower than the height of the threaded rib 3.
[0073] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.
[0074] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0075] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.
Claims
1. A heat-insulating pipe with foamed material, characterized in that, The insulation pipe includes: Inner piping (1); The outer foaming ring (2) is spirally wound around the outside of the inner pipeline (1); A spiral rib (3) is spirally wound around the outside of the inner pipeline (1), and a heating wire (4) is embedded in the spiral rib (3); The outer foam ring (2) and the threaded rib (3) are coaxially and spirally wound around the outside of the inner pipeline (1); The thermal conductivity of the outer foam ring (2) is lower than that of the inner pipe (1).
2. The heat-insulating pipe with foamed material as described in claim 1, characterized in that: The outer foam ring (2) is composed of multiple air bubbles arranged in a row.
3. The heat-insulating pipe with foamed material as described in claim 1, characterized in that: The outer foam ring (2) is a spiral ring structure made of foam material.
4. The heat-insulating pipe with foamed material as described in claim 1, characterized in that: The outer foam ring (2) has a semi-circular cross-section.
5. The heat-insulating pipe with foamed material as described in claim 1, characterized in that: The cross-sectional sizes of the bubbles in the outer foaming ring (2) are not equal.
6. The heat-insulating pipe with foamed material as described in claim 1, characterized in that: The outer foam ring (2) and the threaded rib (3) are at different heights relative to the outer surface of the inner pipeline (1).
7. The heat-insulating pipe with foamed material as described in claim 1, characterized in that: The outer foam ring (2) and the threaded rib (3) are at the same height relative to the outer surface of the inner pipeline (1).
8. The heat-insulating pipe with foamed material as described in claim 1, characterized in that: The spacing between the bubbles in the outer foam ring (2) is configured such that an air layer can be formed inside the bubbles in the outer foam ring (2) when the heating wire of the threaded rib (3) is heated.