CN220572496U - Autogenous cutting face guard with store up oxygen humidifying function - Google Patents
Autogenous cutting face guard with store up oxygen humidifying function Download PDFInfo
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- CN220572496U CN220572496U CN202321370055.2U CN202321370055U CN220572496U CN 220572496 U CN220572496 U CN 220572496U CN 202321370055 U CN202321370055 U CN 202321370055U CN 220572496 U CN220572496 U CN 220572496U
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- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 56
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 56
- 239000001301 oxygen Substances 0.000 title claims abstract description 56
- 230000006837 decompression Effects 0.000 claims abstract description 38
- 230000007246 mechanism Effects 0.000 claims abstract description 10
- 238000009434 installation Methods 0.000 claims description 23
- 229920000742 Cotton Polymers 0.000 claims description 14
- 230000000149 penetrating effect Effects 0.000 claims 1
- 208000004210 Pressure Ulcer Diseases 0.000 abstract description 3
- 230000037380 skin damage Effects 0.000 abstract description 3
- 206010011985 Decubitus ulcer Diseases 0.000 abstract description 2
- 101100269850 Caenorhabditis elegans mask-1 gene Proteins 0.000 description 14
- 239000007789 gas Substances 0.000 description 12
- 238000010438 heat treatment Methods 0.000 description 7
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000029058 respiratory gaseous exchange Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 206010010071 Coma Diseases 0.000 description 1
- 206010011224 Cough Diseases 0.000 description 1
- 208000032376 Lung infection Diseases 0.000 description 1
- 206010036790 Productive cough Diseases 0.000 description 1
- 206010044291 Tracheal obstruction Diseases 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 208000029028 brain injury Diseases 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000007917 intracranial administration Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 210000004400 mucous membrane Anatomy 0.000 description 1
- 238000002640 oxygen therapy Methods 0.000 description 1
- 210000002345 respiratory system Anatomy 0.000 description 1
- 230000028327 secretion Effects 0.000 description 1
- 208000024794 sputum Diseases 0.000 description 1
- 210000003802 sputum Anatomy 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
本实用新型提供一种具有储氧湿化功能的气切面罩，包括气切面罩，气切面罩的中部开设有气切口，气切面罩的两侧边缘连接有固定机构，气切口的表面连接有进气管，进气管的一端设有储氧袋，储氧袋的顶部连接有连接头，连接头的一侧连接有供氧管，通过设有的固定机构，通过拉动第一减压固定带和第二减压固定带从患者脖子绕制后至后颈处佩戴至颈部位置，气切面罩表面开设的气切口对应在患者切口部位，通过将第一减压固定带一端连接的连接扣穿插扣接在第二减压固定带一端连接的连接座内部，使得气切面罩佩戴完成，第二减压固定带表面穿插连接的松紧调节扣便于调节佩戴的松紧程度，可调节的减压固定带提升颈部舒适度，减少压疮等皮肤损伤。
The utility model provides a tracheotomy mask with an oxygen storage and humidification function, which includes a tracheotomy mask. An air incision is provided in the middle of the tracheotomy mask. Fixing mechanisms are connected to both edges of the tracheotomy mask. The surface of the air incision is connected to The air inlet pipe is provided with an oxygen storage bag at one end of the air inlet pipe. The top of the oxygen storage bag is connected with a connector. One side of the connector is connected with an oxygen supply pipe. Through the provided fixing mechanism, the first decompression fixing belt is pulled and The second decompression fixation strap is wrapped around the patient's neck and worn from the back of the neck to the neck position. The air incision on the surface of the tracheostomy mask corresponds to the patient's incision site, and is inserted through the connecting buckle connecting one end of the first decompression fixation strap. The buckle is connected inside the connection seat connected to one end of the second decompression fixing belt to complete the wearing of the tracheostomy mask. The elastic adjustment buckle connected to the surface of the second decompression fixation belt is convenient for adjusting the tightness of the wearer. The adjustable decompression fixation belt Improve neck comfort and reduce skin damage such as pressure sores.
Description
技术领域Technical field
本实用新型涉及医用面罩领域，具体为一种具有储氧湿化功能的气切面罩。The utility model relates to the field of medical masks, specifically a tracheostomy mask with an oxygen storage and humidification function.
背景技术Background technique
气管切开、人工气道的建立是救治昏迷、严重颅脑损伤患者的重要措施。但人工气道在建立后，患者呼吸道会完全丧失加温、加湿及过滤的功能，气道湿化不足，会导致气道局部黏膜干燥，痰液黏稠不易咳出，引起气管堵塞，集聚增多的细菌繁殖，会引起肺部感染，并且神经外科气管切开患者比较多，经常需要应用脱水剂降低颅内压，这就更容易导致气道分泌物黏稠，做好这类患者的气道管理至关重要，目前临床上可选择的储氧面罩仅为脸部设计，无法有效适用于气切患者，由于颈部结构特殊性，需设计一款能贴合颈部轮廓，能储氧增加给氧浓度，提供高浓度氧疗，同时由于气切患者无法通过自身口鼻部提供加温湿化，常规气道滴注等湿化影响舒适度及湿化有效性，因此设计一款自带加温湿化的气切面罩。Tracheotomy and the establishment of artificial airway are important measures to treat patients with coma and severe brain injury. However, after the artificial airway is established, the patient's respiratory tract will completely lose its functions of heating, humidification and filtration. Insufficient airway humidification will lead to dry local mucous membranes in the airway, sticky sputum that is difficult to cough up, causing tracheal obstruction and increased accumulation. Bacteria multiply and cause lung infections, and there are many tracheostomy patients in neurosurgery. Dehydrants are often needed to reduce intracranial pressure, which is more likely to cause airway secretions to become sticky. Therefore, the airway management of these patients must be done well. Importantly, the oxygen storage masks currently available clinically are only designed for the face and cannot be effectively applied to tracheostomy patients. Due to the special structure of the neck, it is necessary to design a mask that can fit the contour of the neck and store oxygen to increase oxygen supply. concentration to provide high-concentration oxygen therapy. At the same time, because tracheostomy patients cannot provide heating and humidification through their own mouth and nose, and conventional airway instillation and other humidification affect comfort and humidification effectiveness, so a self-contained heating device is designed. Humidified tracheostomy mask.
实用新型内容Utility model content
本实用新型的目的在于提供一种具有储氧湿化功能的气切面罩，以解决上述背景技术提出的目前临床上可选择的储氧面罩仅为脸部设计，无法有效适用于气切患者，同时由于气切患者无法通过自身口鼻部提供加温湿化，常规气道滴注等湿化影响舒适度及湿化有效性的问题。The purpose of this utility model is to provide a tracheostomy mask with an oxygen storage and humidification function to solve the problem that the current clinically selectable oxygen storage masks proposed by the above background technology are only designed for the face and cannot be effectively applied to tracheostomy patients. At the same time, because tracheostomy patients cannot provide heating and humidification through their own mouth and nose, humidification such as conventional airway drip affects comfort and effectiveness of humidification.
为实现上述目的，本实用新型提供如下技术方案：一种具有储氧湿化功能的气切面罩，包括气切面罩，所述气切面罩的中部开设有气切口，所述气切面罩的两侧边缘连接有固定机构，所述气切口的表面连接有进气管，所述进气管的一端设有储氧袋，所述储氧袋的顶部连接有连接头，所述连接头的一侧连接有供氧管；In order to achieve the above purpose, the present utility model provides the following technical solution: a tracheostomy mask with an oxygen storage and humidification function, including a tracheostomy mask, an air incision is provided in the middle of the tracheostomy mask, and both sides of the tracheostomy mask A fixing mechanism is connected to the side edge, an air inlet pipe is connected to the surface of the air incision, an oxygen storage bag is provided at one end of the air inlet pipe, a connector is connected to the top of the oxygen storage bag, and one side of the connector is connected to There is an oxygen supply tube;
所述固定机构包括第一减压固定带、第二减压固定带、连接扣、连接座和松紧调节扣。The fixing mechanism includes a first decompression fixing belt, a second decompression fixing belt, a connecting buckle, a connecting seat and an elastic adjustment buckle.
作为本实用新型的进一步描述：所述第一减压固定带固定连接在气切面罩的一侧边缘，所述第一减压固定带的一端固定连接有连接扣，所述第二减压固定带固定连接在气切面罩的另一侧边缘，所述第二减压固定带一端固定连接有连接座，所述连接扣穿插扣接在连接座内部。As a further description of the present invention: the first decompression fixing strap is fixedly connected to one side edge of the tracheostomy mask, one end of the first decompression fixation strap is fixedly connected with a connection buckle, and the second decompression fixation strap The strap is fixedly connected to the other edge of the tracheostomy mask, one end of the second decompression fixing strap is fixedly connected to a connecting seat, and the connecting buckle is inserted and buckled inside the connecting seat.
作为本实用新型的进一步描述：所述第二减压固定带的表面穿插连接有松紧调节扣。As a further description of the present invention: the surface of the second pressure-reducing fixing belt is connected with an elastic adjustment buckle.
作为本实用新型的进一步描述：所述气切面罩的表面两侧均开设有开口，两个所述开口的内部均安装有外排活瓣。As a further description of the present invention: openings are provided on both sides of the surface of the tracheostomy mask, and discharge valves are installed inside the two openings.
作为本实用新型的进一步描述：所述连接头的内部设有内排活瓣，所述连接头的顶部连接有安装套，所述安装套的内部填充有湿化棉，所述进气管的一端与安装套连接。As a further description of the utility model: the inside of the connector is provided with an inner row valve, the top of the connector is connected to an installation sleeve, the inside of the installation sleeve is filled with humidified cotton, and one end of the air inlet pipe Connect with mounting sleeve.
作为本实用新型的进一步描述：所述气切面罩的顶部边缘连接有鼻梁条。As a further description of the present invention: a nose bridge strip is connected to the top edge of the tracheostomy mask.
与现有技术相比，本实用新型的有益效果是：Compared with the existing technology, the beneficial effects of this utility model are:
(1)通过设有的固定机构，当患者佩戴气切面罩时，通过拉动第一减压固定带和第二减压固定带从患者脖子绕制后至后颈处佩戴至颈部位置，气切面罩表面开设的气切口对应在患者切口部位，通过将第一减压固定带一端连接的连接扣穿插扣接在第二减压固定带一端连接的连接座内部，使得气切面罩佩戴完成，第二减压固定带表面穿插连接的松紧调节扣便于调节佩戴的松紧程度，可调节的减压固定带提升颈部舒适度，减少压疮等皮肤损伤；(1) Through the fixed mechanism provided, when the patient wears the tracheostomy mask, the first decompression fixing strap and the second decompression fixation strap are pulled from the patient's neck to the back of the neck and worn to the neck position. The air incision opened on the surface of the incision mask corresponds to the patient's incision site. By inserting and buckling the connecting buckle connected to one end of the first decompression fixing belt into the connection seat connected to one end of the second decompression fixing belt, the tracheotomy mask is worn completely. The elastic adjustment buckle interspersed on the surface of the second pressure-reducing fixed belt is convenient for adjusting the tightness of the wearer. The adjustable pressure-reducing fixed belt improves neck comfort and reduces skin damage such as pressure sores;
(2)连接头将进气管与储氧袋连通，连接头的一侧连接有供氧管提供氧气，储氧袋提升储氧的容积，增加给氧浓度，呼出的气体通过进气管流通至安装套内部，连接头的内部设有内排活瓣，单向的内排活瓣可以避免气体呼出时通过进气管返回至储氧袋，气流进入安装套后经过安装套内部湿化棉收集呼出气体的湿度及温度，当患者吸气时，内排活瓣打开，氧气通过储氧袋进入安装套中，经过湿化棉后湿化棉为供气提供加湿加温的作用，最终通过进气管供给患者呼吸所需的氧气。(2) The connector connects the air inlet pipe to the oxygen storage bag. An oxygen supply pipe is connected to one side of the connector to provide oxygen. The oxygen storage bag increases the oxygen storage volume and increases the oxygen supply concentration. The exhaled gas flows through the air inlet pipe to the installation Inside the sleeve, there is an inner discharge valve inside the connector. The one-way inner discharge valve can prevent the gas from returning to the oxygen storage bag through the air inlet pipe when exhaled. After the airflow enters the installation sleeve, it collects the exhaled gas through the humidified cotton inside the installation sleeve. When the patient inhales, the inner row valve opens, and oxygen enters the installation sleeve through the oxygen storage bag. After passing through the humidified cotton, the humidified cotton provides humidification and heating for the air supply, and is finally supplied through the air inlet pipe. The oxygen the patient needs to breathe.
附图说明Description of the drawings
图1为本实用新型的主视结构示意图；Figure 1 is a schematic view of the front structure of the utility model;
图2为本实用新型的侧视结构示意图；Figure 2 is a schematic side view of the structure of the utility model;
图3为本实用新型的固定带安装结构示意图；Figure 3 is a schematic diagram of the installation structure of the fixed belt of the present invention;
图4为本实用新型的湿化棉安装位置结构示意图。Figure 4 is a schematic structural diagram of the installation position of the humidifying cotton of the present invention.
图中：1、气切面罩；2、气切口；3、固定机构；31、第一减压固定带；32、第二减压固定带；33、连接扣；34、连接座；35、松紧调节扣；4、进气管；5、储氧袋；6、连接头；7、供氧管；8、开口；9、外排活瓣；10、内排活瓣；11、安装套；12、湿化棉；13、鼻梁条。In the picture: 1. Tracheotomy mask; 2. Tracheostomy; 3. Fixing mechanism; 31. First decompression fixing belt; 32. Second decompression fixation belt; 33. Connecting buckle; 34. Connecting seat; 35. Elastic Adjusting buckle; 4. Air inlet pipe; 5. Oxygen storage bag; 6. Connector; 7. Oxygen supply pipe; 8. Opening; 9. Outer discharge valve; 10. Inner discharge valve; 11. Installation sleeve; 12. Humidified cotton; 13. Nose bridge strip.
具体实施方式Detailed ways
下面将结合本实用新型实施例中的附图，对本实用新型实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本实用新型一部分实施例，而不是全部的实施例。基于本实用新型中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本实用新型保护的范围。The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, not all implementations. example. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present utility model.
请参阅图1-图4，本实用新型提供一种技术方案：一种具有储氧湿化功能的气切面罩，包括气切面罩1，气切面罩1的中部开设有气切口2，气切面罩1的两侧边缘连接有固定机构3，气切口2的表面连接有进气管4，进气管4的一端设有储氧袋5，储氧袋5的顶部连接有连接头6，连接头6的一侧连接有供氧管7；Please refer to Figures 1 to 4. The present utility model provides a technical solution: a tracheostomy mask with an oxygen storage and humidification function, including a tracheostomy mask 1. The tracheostomy mask 1 is provided with an air incision 2 in the middle. The side edges of the mask 1 are connected with fixing mechanisms 3, and the surface of the air incision 2 is connected with an air inlet pipe 4. One end of the air inlet pipe 4 is provided with an oxygen storage bag 5, and the top of the oxygen storage bag 5 is connected with a connector 6. The connector 6 One side is connected with an oxygen supply pipe 7;
固定机构3包括第一减压固定带31、第二减压固定带32、连接扣33、连接座34和松紧调节扣35。The fixing mechanism 3 includes a first decompression fixing belt 31 , a second decompression fixing belt 32 , a connecting buckle 33 , a connecting seat 34 and an elastic adjustment buckle 35 .
在本实施例中：第一减压固定带31固定连接在气切面罩1的一侧边缘，第一减压固定带31的一端固定连接有连接扣33，第二减压固定带32固定连接在气切面罩1的另一侧边缘，第二减压固定带32一端固定连接有连接座34，连接扣33穿插扣接在连接座34内部，第二减压固定带32的表面穿插连接有松紧调节扣35。In this embodiment: the first decompression fixing belt 31 is fixedly connected to one side edge of the tracheostomy mask 1, one end of the first decompression fixation belt 31 is fixedly connected with a connecting buckle 33, and the second decompression fixation belt 32 is fixedly connected. On the other side edge of the tracheostomy mask 1, one end of the second decompression fixing belt 32 is fixedly connected to a connection base 34. The connection buckle 33 is inserted and buckled inside the connection base 34. The surface of the second decompression fixation belt 32 is connected with Elastic adjustment buckle 35.
具体使用时：当患者佩戴气切面罩1时，通过拉动第一减压固定带31和第二减压固定带32从患者脖子绕制后至后颈处佩戴至颈部位置，气切面罩1表面开设的气切口2对应在患者切口部位，通过将第一减压固定带31一端连接的连接扣33穿插扣接在第二减压固定带32一端连接的连接座34内部，使得气切面罩1佩戴完成，第二减压固定带32表面穿插连接的松紧调节扣35便于调节佩戴的松紧程度，可调节的减压固定带提升颈部舒适度，减少压疮等皮肤损伤。Specific use: When the patient wears the tracheostomy mask 1, the tracheostomy mask 1 is worn by pulling the first decompression fixing strap 31 and the second decompression fixation strap 32 from the patient's neck to the nape of the neck to the neck position. The air incision 2 opened on the surface corresponds to the patient's incision site, and the connecting buckle 33 connected to one end of the first decompression fixing belt 31 is inserted into the connection seat 34 connected to one end of the second decompression fixing belt 32 to make the tracheostomy mask 1. After the wearing is completed, the elastic adjustment buckle 35 connected to the surface of the second decompression fixing belt 32 is convenient for adjusting the tightness of the wearer. The adjustable decompression fixation belt improves the comfort of the neck and reduces skin damage such as pressure ulcers.
在本实施例中：气切面罩1的表面两侧均开设有开口8，两个开口8的内部均安装有外排活瓣9。In this embodiment: openings 8 are provided on both sides of the surface of the tracheostomy mask 1, and discharge valves 9 are installed inside the two openings 8.
具体使用时：气切面罩1的两侧开设有开口8，在开口8内部安装外排活瓣9，当患者切口处呼吸排出气时，气体通过单向的外排活瓣9排出至外部，在吸气时从气切口2连接的进气管4来提供氧气，外部的气体无法通过外排活瓣9吸入，减少二氧化碳气体重复吸入体内。During specific use: there are openings 8 on both sides of the tracheostomy mask 1, and an efflux valve 9 is installed inside the opening 8. When the patient breathes out of the incision, the gas is discharged to the outside through the one-way efflux valve 9. When inhaling, oxygen is provided from the air inlet pipe 4 connected to the air incision 2, and external gas cannot be inhaled through the discharge valve 9, thereby reducing the repeated inhalation of carbon dioxide gas into the body.
在本实施例中：连接头6的内部设有内排活瓣10，连接头6的顶部连接有安装套11，安装套11的内部填充有湿化棉12，进气管4的一端与安装套11连接。In this embodiment: the inner row valve 10 is provided inside the connector 6, the top of the connector 6 is connected to an installation sleeve 11, the inside of the installation sleeve 11 is filled with humidified cotton 12, one end of the air inlet pipe 4 is connected to the installation sleeve 11 connections.
具体使用时：连接头6将进气管4与储氧袋5连通，连接头6的一侧连接有供氧管7提供氧气，储氧袋5提升储氧的容积，增加给氧浓度，呼出的气体一部分通过进气管4流通至安装套11内部，连接头6的内部设有内排活瓣10，单向的内排活瓣10可以避免气体呼出时通过进气管4返回至储氧袋5，气流进入安装套11后经过安装套11内部湿化棉12收集呼出气体的湿度及温度，当患者吸气时，内排活瓣10打开，氧气通过储氧袋5进入安装套11中，经过湿化棉12后湿化棉12为供气提供加湿加温的作用，最终通过进气管4供给患者呼吸所需的氧气。During specific use: the connector 6 connects the air inlet pipe 4 and the oxygen storage bag 5. One side of the connector 6 is connected to an oxygen supply pipe 7 to provide oxygen. The oxygen storage bag 5 increases the oxygen storage volume, increases the oxygen supply concentration, and exhales Part of the gas flows through the air inlet pipe 4 to the inside of the installation sleeve 11. The inside of the connector 6 is provided with an inner discharge valve 10. The one-way inner discharge valve 10 can prevent the gas from returning to the oxygen storage bag 5 through the air inlet pipe 4 when exhaled. After the airflow enters the installation sleeve 11, it passes through the humidified cotton 12 inside the installation sleeve 11 to collect the humidity and temperature of the exhaled gas. When the patient inhales, the inner discharge valve 10 opens, and oxygen enters the installation sleeve 11 through the oxygen storage bag 5 and is wetted. After chemical cotton 12, the humidified cotton 12 provides humidification and heating functions for the air supply, and finally supplies the oxygen required for the patient's breathing through the air inlet pipe 4.
在本实施例中：气切面罩1的顶部边缘连接有鼻梁条13。In this embodiment: a nose bridge strip 13 is connected to the top edge of the tracheostomy mask 1 .
具体使用时：气切面罩1的顶部边缘连接有鼻梁条13，鼻梁条13通过弯曲调节气切面罩1的弧度使得贴合颈部，使得气切面罩1保持密闭。During specific use: the top edge of the tracheostomy mask 1 is connected to a nose bridge strip 13, and the nose bridge strip 13 adjusts the curvature of the tracheostomy mask 1 by bending to fit the neck, so that the tracheostomy mask 1 remains airtight.
工作原理：连接头6的一侧连接有供氧管7提供氧气，储氧袋5提升储氧的容积，增加给氧浓度，呼出的气体一部分通过进气管4流通至安装套11内部，连接头6的内部设有内排活瓣10，单向的内排活瓣10可以避免气体呼出时通过进气管4返回至储氧袋5，气流进入安装套11后经过安装套11内部湿化棉12收集呼出气体的湿度及温度，当患者吸气时，内排活瓣10打开，氧气通过储氧袋5进入安装套11中，经过湿化棉12后湿化棉12为供气提供加湿加温的作用，最终通过进气管4供给患者呼吸所需的氧气。Working principle: One side of the connector 6 is connected to an oxygen supply pipe 7 to provide oxygen. The oxygen storage bag 5 increases the oxygen storage volume and increases the oxygen supply concentration. Part of the exhaled gas flows through the air inlet pipe 4 to the inside of the installation sleeve 11. The connector 6 is provided with an inner discharge valve 10 inside. The one-way inner discharge valve 10 can prevent the gas from returning to the oxygen storage bag 5 through the air inlet pipe 4 when exhaled. The airflow enters the installation sleeve 11 and passes through the humidified cotton 12 inside the installation sleeve 11. Collect the humidity and temperature of the exhaled gas. When the patient inhales, the inner discharge valve 10 opens, and oxygen enters the installation sleeve 11 through the oxygen storage bag 5. After passing through the humidifying cotton 12, the humidifying cotton 12 provides humidification and heating for the air supply. function, and finally supplies the patient with the oxygen required for breathing through the air inlet pipe 4.
本说明中未作详细描述的内容属于本领域专业技术人员公知的现有技术，尽管参照前述实施例对本实用新型进行了详细的说明，对于本领域的技术人员来说，其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换，凡在本实用新型的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本实用新型的保护范围之内。Contents not described in detail in this description belong to the prior art known to those skilled in the art. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still make changes to the foregoing aspects. Modifications to the technical solutions described in the embodiments, or equivalent substitutions of some of the technical features, any modifications, equivalent substitutions, improvements, etc. within the spirit and principles of the present utility model shall be included in the present utility model. within the scope of protection.
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