WO2022052871A1 - 一种新型外壁加热呼吸管路 - Google Patents

一种新型外壁加热呼吸管路 Download PDF

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Publication number
WO2022052871A1
WO2022052871A1 PCT/CN2021/116419 CN2021116419W WO2022052871A1 WO 2022052871 A1 WO2022052871 A1 WO 2022052871A1 CN 2021116419 W CN2021116419 W CN 2021116419W WO 2022052871 A1 WO2022052871 A1 WO 2022052871A1
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heating
wall
heating wire
pipe body
breathing pipeline
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PCT/CN2021/116419
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English (en)
French (fr)
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曾小坚
李磊
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绍兴安迪斯医疗科技有限公司
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Publication of WO2022052871A1 publication Critical patent/WO2022052871A1/zh

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/0003—Accessories therefor, e.g. sensors, vibrators, negative pressure
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/10—Preparation of respiratory gases or vapours
    • A61M16/1075—Preparation of respiratory gases or vapours by influencing the temperature
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/36—General characteristics of the apparatus related to heating or cooling
    • A61M2205/3653—General characteristics of the apparatus related to heating or cooling by Joule effect, i.e. electric resistance

Definitions

  • the invention relates to the technical field of humidification and heating breathing machines, in particular to a novel outer wall heating breathing pipeline.
  • the traditional bellows heating has a built-in heating wire in the bellows, and the heating wire is connected by the heating wire. Provides the energy loss when the gas is transported in the breathing circuit, but due to the uneven wrinkled structure on the wall of the bellows, the heat provided by the heating wire cannot be well diffused to the wrinkled structure of the tube wall.
  • the heating pipeline of this structure has no wrinkles on the tube wall, due to the thick ribs, the heat generated by the heating wire in the ribs cannot be well transmitted to the film, and the film between the ribs The film is thinner and the heat loss is large, and the heat in the pipeline is easily dissipated from here, resulting in the condensed water still gathering at the interval between the ribs and the ribs, that is, the film area.
  • the traditional heating breathing pipeline due to design defects, cannot solve the problem of condensed water in the pipeline very well, and it is easy to generate condensed water on the inner wall of the pipeline, and the existence of condensed water may cause greater breathing hazards, including condensed water. It is easy to breed bacteria and infect the patient, and the condensed water can easily block the breathing circuit tube, so that the gas delivered to the patient end does not reach the relative standard temperature and humidity, which is easy to cause the patient's breathing discomfort, and may even cause the patient's breathing difficulty and endanger the patient's life safety. To this end, we need to design a new type of heated breathing circuit that can better solve the problem of condensed water.
  • the object of the present invention is to provide a novel outer wall heating breathing pipeline with reasonable structure design, winding type external heating structure, uniform heating without producing condensed water, stable heating wire design, and thermal insulation.
  • a new type of outer wall heating breathing pipeline includes a tube body, a heating wire, a heat shrinkable film and a joint.
  • the outer wall of the tube is wound with a heating wire, and the heating wire is formed by winding heating wires on glass fibers.
  • Heat shrinkable film, the two ends of the tube body are sleeved with joints.
  • the tube body is composed of a sheet film and a rib, and the rib is spirally wound on the outer wall of the sheet film, and the rib and the sheet film are integrally extruded.
  • the heating wire is composed of two glass fibers wound with heating wires embedded in the insulating sheath, the heating wires are spirally wound on the glass fibers, and the two glass fibers do not contact each other in the insulating sheath.
  • the heating wire is wound between two adjacent ribs.
  • the outside of the tube body is sleeved with a heat shrinkable film that can tightly wrap the heating wire.
  • the tube body can be bent at will, and the inner wall of the tube is designed with a smooth surface.
  • both ends of the pipe body are sleeved with joints, and the joint and the pipe body are integrally injection-molded, one of the joints is provided with an electrical interface and a sensor interface, and the terminals in the electrical interface are connected to the heating wire.
  • the beneficial conditions of the present invention are:
  • the heating wire is designed to be wrapped around the film of the tube body instead of the ribs, which can compensate the heat loss at the thinnest part of the pipeline to the greatest extent;
  • the heating wire is externally wound on the outer wall of the tube instead of the inside of the tube, which can effectively reduce the airflow resistance of the pipeline and enable the patient to have a good breathing experience;
  • the heating wire is covered with a layer of heat shrinkable film, which can not only prevent the heating wire from falling off during the moving or bending process of the heating pipe, but also play a certain role in heat preservation.
  • FIG. 1 is a perspective view of the present invention.
  • Figure 2 is a cross-sectional view of the present invention.
  • FIG. 3 is a schematic diagram of a part of the structure of FIG. 2 .
  • FIG. 4 is a schematic diagram of the internal structure of the heating wire of the present invention.
  • a novel outer wall heating breathing pipeline includes a tube body 1, a heating wire 4, a heat shrinkable film 8, and a joint 9.
  • the outer wall of the tube body 1 is wound with a heating wire 4
  • the heating wire 4 is formed by winding the heating wire 7 on the glass fiber 6
  • the outer side of the tube body 1 is wrapped with a heat shrinkable film 8, and the two ends of the tube body 1 are sleeved with joints 9.
  • the tube body 1 is composed of a sheet film 2 and a rib 3, and the rib 3 is spirally wound on the outer wall of the sheet film 2, and the rib 3 and the sheet film 2 are integrally extruded.
  • the heating wire 4 is composed of two glass fibers 6 wound with heating wires 7 embedded in the insulating sheath 5 .
  • the heating wire 4 is wound between two adjacent ribs 3 .
  • the outside of the tube body 1 is sleeved with a heat shrinkable film 8 that can tightly wrap the heating wire 4 .
  • the pipe body 1 can be bent at will, and the inner wall of the pipe body 1 is designed with a smooth surface. Both ends of the pipe body 1 are sleeved with joints 9, and the joint 9 and the pipe body 1 are integrally injection-molded.
  • One of the joints 9 is provided with an electrical interface 10 and a sensor interface 11. Hotline 4 docking.
  • the pipe body 1 of the present invention is wound with ribs 3 on the sheet film 2, the inner wall of the pipe body 1 is smooth, the gas flows smoothly without resistance, the glass fiber 6 is spirally wound with heating wire 7, and the heating is uniform, passing through the sensor interface of one of the joints 9 11 can be electrically connected to the controller to detect data such as humidity or temperature of the gas in the pipe body 1, and the electrical interface 10 can supply power to the heating wire 7;
  • the heating wire 4 is designed to be wound around the film 2 of the pipe body 1 instead of the ribs 3, which can compensate the heat loss at the thinnest part of the pipeline to the greatest extent. Therefore, the ribs 3 themselves have a certain thermal insulation effect;
  • the heating wire 4 is externally wound around the tube body 1 instead of inside the tube, which can effectively reduce the airflow resistance of the pipeline and enable the patient to have a good breathing experience;
  • the heating wire 4 is covered with a layer of heat shrinkable film 8.
  • the thermoplastic film 8 can also be replaced with a heat shrinkable sleeve. Falling off, it can also play a certain role in thermal insulation.

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  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Pulmonology (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Pipe Accessories (AREA)
  • Thermotherapy And Cooling Therapy Devices (AREA)
  • Resistance Heating (AREA)

Abstract

一种新型外壁加热呼吸管路，包括管体（1）、加热线（4）、热缩膜（8）、接头（9），管体（1）外壁缠绕有加热线（4），加热线（4）采用在玻璃纤维（6）上缠绕加热丝（7）构成，管体（1）外侧包裹有热缩膜（8），管体（1）两端套接有接头。加热线（4）设计成缠绕在管体（1）的片膜处而非筋条中，可以最大限度补偿管路最薄处的热量损失。

Description

一种新型外壁加热呼吸管路 技术领域
本发明涉及加湿加温呼吸机的技术领域，特别是一种新型外壁加热呼吸管路。
背景技术
在现有的呼吸机加热呼吸管路产品中大部分加热呼吸管路并不能很好的解决管路中冷凝水的问题：如传统的波纹管加热在波纹管中内置一加热线，由加热线提供气体在呼吸管路中传输时的能量损失，但由于波纹管管壁上凹凸不平的褶皱结构，加热线提供的热量并不能很好的扩散到管壁的褶皱结构上，加上波纹管的散热面积过大管路中的热量损失严重，导致褶皱处出现大量冷凝水；还有一种新型的内壁光滑型加热管路，由筋条结构和片膜结构组成，加热线直接注塑在筋条中，这种结构的加热管路虽然管壁上没有了褶皱，但是由于筋条偏厚，加热线在筋条中发热的热量不能很好的传送到片膜中去，加之筋条之间的片膜较薄，热量损失较大，管路中的热量容易从此处散发，导致筋条与筋条的间隔处即片膜区仍然有冷凝水聚集。
传统的加热呼吸管路，由于设计缺陷并不能很好的解决管路中冷凝水的问题，容易在路管的内壁产生冷凝水，而冷凝水的存在可能引起较大的呼吸隐患，包括冷凝水易滋生细菌感染患者，冷凝水易堵塞呼吸回路管，导致输送到患者端的气体未达到相对标准温湿度，容易引起患者的呼吸不适，甚至可能造成患者呼吸困难危害患者生命安全。为此，我们需要设计一种能更好的解决冷凝水问题的新型加热呼吸管路。
发明内容
为解决上述问题，本发明的目的是提供一种结构设计合理、缠绕式外置加热结 构、加热均匀不产生冷凝水、加热线设计稳定、保温隔热的新型外壁加热呼吸管路。
为实现上述目的，本发明的技术方案：
一种新型外壁加热呼吸管路，包括管体、加热线、热缩膜、接头，所述的管体外壁缠绕有加热线，加热线采用在玻璃纤维上缠绕加热丝构成，管体外侧包裹有热缩膜，管体两端套接有接头。
作为优选，所述的管体由片膜与筋条构成，且筋条螺旋状缠绕于片膜外壁，筋条与片膜为一体式挤塑成型。
作为优选，所述的加热线有两条缠绕有加热丝的玻璃纤维嵌入绝缘皮内构成，加热丝螺旋状缠绕于玻璃纤维上，两玻璃纤维在绝缘皮内相互不接触。
作为优选，所述的加热线缠绕于两相邻的筋条之间。
作为优选，所述的管体外侧套接有能将加热线紧紧包裹的热缩膜。
作为优选，所述的管体可随意弯折，且管体内壁为光滑面设计。
作为优选，所述的管体两端均套接有接头，接头与管体为一体式注塑成型，其中一接头上设有电气接口与传感器接口，电气接口内的端子与加热线对接。
本发明的有益条件在于：
1、加热线设计成缠绕在管体的片膜处而非筋条中，可以最大限度补偿管路最薄处的热量损失；
2、加热线外置缠绕在管体外壁而非管内，可有效减小管路气流阻力，使患者有良好的呼吸体验；
3、加热线外包覆一层热缩膜既能起到防止加热管路在移动或弯曲过程中加热线脱落，也能起到一定的保温作用。
附图说明
图1为本发明的立体图。
图2为本发明的剖面图。
图3为图2的部分结构示意图。
图4为本发明加热线的内部结构示意图。
具体实施方式
如图1、2、3、4所示，一种新型外壁加热呼吸管路，包括管体1、加热线4、热缩膜8、接头9，所述的管体1外壁缠绕有加热线4，加热线4采用在玻璃纤维6上缠绕加热丝7构成，管体1外侧包裹有热缩膜8，管体1两端套接有接头9。所述的管体1由片膜2与筋条3构成，且筋条3螺旋状缠绕于片膜2外壁，筋条3与片膜2为一体式挤塑成型。所述的加热线4有两条缠绕有加热丝7的玻璃纤维6嵌入绝缘皮5内构成，加热丝7螺旋状缠绕于玻璃纤维6上，两玻璃纤维6在绝缘皮5内相互不接触。所述的加热线4缠绕于两相邻的筋条3之间。所述的管体1外侧套接有能将加热线4紧紧包裹的热缩膜8。所述的管体1可随意弯折，且管体1内壁为光滑面设计。所述的管体1两端均套接有接头9，接头9与管体1为一体式注塑成型，其中一接头9上设有电气接口10与传感器接口11，电气接口10内的端子与加热线4对接。
本发明的管体1通过片膜2上缠绕筋条3，管体1内壁光滑，气体流动顺畅无阻力，玻璃纤维6上螺旋状缠绕加热丝7，加热均匀，通过其中一接头9的传感器接口11可通过电性连接至控制器检测管体1内气体的湿度或温度等数据，电气接口10可对加热丝7进行供电；
加热线4设计成缠绕在管体1的片膜2处而非筋条3中，可以最大限度补偿管路最薄处的热量损失，而筋条3结构本身设计的比较厚，热量散失相对较少， 故筋条3本身就有一定的保温效果；
加热线4外置缠绕在管体1而非管内，可有效减小管路气流阻力，使患者有良好的呼吸体验；
加热线4外包覆一层热缩膜8，热塑膜8也可替换成热缩套效果相同，既能起到防止加热管路在移动或弯曲过程中加热线4从筋条3之间脱落，也能起到一定的保温作用。
本行业的技术人员应该了解，本发明不受上述实施例的限制，上述实施例和说明书中描述的只是说明本发明的原理，在不脱离本发明精神和范围的前提下，本发明还会有各种变化和改进，这些变化和改进都落入要求保护的本发明范围内。本发明要求保护范围由所附的权利要求书及其等效物界定。

Claims (7)

  1. 一种新型外壁加热呼吸管路，包括管体(1)、加热线(4)、热缩膜(8)、接头(9)，其特征在于，所述的管体(1)外壁缠绕有加热线(4)，加热线(4)采用在玻璃纤维(6)上缠绕加热丝(7)构成，管体(1)外侧包裹有热缩膜(8)，管体(1)两端套接有接头(9)。
  2. 根据权利要求1所述的一种新型外壁加热呼吸管路，其特征在于，所述的管体(1)由片膜(2)与筋条(3)构成，且筋条(3)螺旋状缠绕于片膜(2)外壁，筋条(3)与片膜(2)为一体式挤塑成型。
  3. 根据权利要求1所述的一种新型外壁加热呼吸管路，其特征在于，所述的加热线(4)有两条缠绕有加热丝(7)的玻璃纤维(6)嵌入绝缘皮(5)内构成，加热丝(7)螺旋状缠绕于玻璃纤维(6)上，两玻璃纤维(6)在绝缘皮(5)内相互不接触。
  4. 根据权利要求1所述的一种新型外壁加热呼吸管路，其特征在于，所述的加热线(4)缠绕于两相邻的筋条(3)之间。
  5. 根据权利要求1所述的一种新型外壁加热呼吸管路，其特征在于，所述的管体(1)外侧套接有能将加热线(4)紧紧包裹的热缩膜(8)。
  6. 根据权利要求1所述的一种新型外壁加热呼吸管路，其特征在于，所述的管体(1)可随意弯折，且管体(1)内壁为光滑面设计。
  7. 根据权利要求1所述的一种新型外壁加热呼吸管路，其特征在于，所述的管体(1)两端均套接有接头(9)，接头(9)与管体(1)为一体式注塑成型，其中一接头(9)上设有电气接口(10)与传感器接口(11)，电气接口(10)内的端子与加热线(4)对接。
PCT/CN2021/116419 2020-09-08 2021-09-03 一种新型外壁加热呼吸管路 WO2022052871A1 (zh)

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DE102021108164A1 (de) 2021-03-31 2022-10-06 Foxxmed Ltd. Medizinischer schlauch zur verwendung mit benutzungsoberfläche in der atemtherapie
CN113669518A (zh) * 2021-08-23 2021-11-19 哈尔滨雪谷制冷设备有限公司 一种防冻管

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CN212347387U (zh) * 2020-09-08 2021-01-15 绍兴安迪斯医疗科技有限公司 一种新型外壁加热呼吸管路

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