CN112022326A

Movatterモバイル変換

Info

Publication number: CN112022326A
Application number: CN202010830794.XA
Authority: CN
Inventors: 王昌惠; 段红霞; 李譞
Original assignee: Shanghai Tenth Peoples Hospital
Current assignee: Shanghai Tenth Peoples Hospital
Priority date: 2020-08-18
Filing date: 2020-08-18
Publication date: 2020-12-04

Abstract

Translated fromChinese

本发明公开了一种作用范围可调节的喷雾冷冻导管，包括冷冻导管管体，管体包括隔热管路、进气管路，隔热管路套在进气管路上，且进气管路端部设置多个喷雾喷头，沿轴向分布，进气管路进气，以单个或多个喷雾喷头进行喷雾，本喷雾导管改进结构，以轴向分布多个喷雾喷头，根据需求以单个或多个共同进行喷雾，喷雾冷冻范围可调节，避免重复喷雾，提高使用的便利性，此外，隔热管路可有效隔热，防止制冷剂非必要的热交换，有利于制冷剂快速输送至喷雾喷头处，减少输送过程中制冷剂的损耗，提高冷冻治疗的效率，避免非喷头处的低温带来的损伤，保护医患。

The invention discloses a spray refrigerating conduit with adjustable function range, comprising a refrigerating conduit pipe body, the pipe body comprises a heat insulation pipeline and an air intake pipeline, the heat insulation pipeline is sleeved on the air intake pipeline, and the end of the air intake pipeline is provided with Multiple spray nozzles are distributed along the axial direction, and the air intake pipeline is filled with air, and sprays with single or multiple spray nozzles. The structure of the spray duct is improved to distribute multiple spray nozzles in the axial direction, which can be carried out in single or multiple joints according to requirements. Spray, spray freezing range can be adjusted, avoid repeated spray, improve the convenience of use, in addition, the heat insulation pipeline can effectively insulate, prevent unnecessary heat exchange of refrigerant, and is conducive to the rapid delivery of refrigerant to the spray nozzle, reducing The loss of refrigerant during the transportation process improves the efficiency of cryotherapy, avoids damage caused by low temperature at the non-nozzle, and protects doctors and patients.

Description

Translated fromChinese

一种作用范围可调节的喷雾冷冻导管A spray freezing catheter with adjustable action range

技术领域technical field

本发明涉及冷冻消融装置技术领域，具体涉及一种作用范围可调节的喷雾冷冻导管。The invention relates to the technical field of cryoablation devices, in particular to a spray freezing catheter with an adjustable range of action.

背景技术Background technique

目前治疗慢性支气管炎的方法主要为药物治疗，其包括吸入皮质类固醇、抗胆碱能药物、短效/长效β2受体兴奋剂，祛痰药如氨溴索，羧甲司坦，罗氟司特等。这些药物虽然有一定的治疗作用，但是有较多的不良反应及副作用。非药物治疗方式如手术治疗、机械通气、肺减容术、支气管射频热成形等治疗方式对慢性支气管炎患者的治疗效果不佳，且支气管射频热成形治疗对有大量粘痰的慢性支气管炎患者效果不佳。The current treatment of chronic bronchitis is mainly drug therapy, which includes inhaled corticosteroids, anticholinergic drugs, short-acting/long-acting β2-receptor stimulants, expectorants such as ambroxol, carbocisteine, rofluidate Stet et al. Although these drugs have certain therapeutic effects, they have many adverse reactions and side effects. Non-drug treatments such as surgical treatment, mechanical ventilation, lung volume reduction surgery, and bronchial radiofrequency thermoplasty have poor therapeutic effects on patients with chronic bronchitis, and bronchial radiofrequency thermoplasty is not effective for chronic bronchitis patients with a large amount of sticky phlegm. not effectively.

冷冻消融是利用对组织的降温，灭杀细胞组织的一种治疗方法。在治疗慢性支气管炎时，可将低温冷冻介质直接喷洒在支气管表层，使表层中粘液腺细胞和杯状细胞因深低温冷冻而破坏，修复后可在冷冻处重新生长出健康的细胞，重塑黏膜上层，从而减轻慢性支气管炎的炎症和高分泌状态。Cryoablation is a treatment method that uses the cooling of tissue to kill cells and tissues. In the treatment of chronic bronchitis, the low-temperature freezing medium can be sprayed directly on the surface of the bronchus, so that the mucous gland cells and goblet cells in the surface layer are destroyed by cryogenic freezing. upper layers, thereby reducing the inflammatory and hypersecretory state of chronic bronchitis.

冷冻消融方式与热消融方式相比，冷冻消融不易导致软骨的损伤，且很少发生气道软化、塌陷等现象，同时也可以防止继发动力性狭窄；冷冻治疗较少引起冰冻部位与周围组织的黏连；可控深度的冷冻治疗对邻近的大血管和气管不易造成严重伤害，不易造成穿孔出血，且利于组织修复；冷冻消融不会促进肉芽组织的增生，且不容易产生瘢痕组织。冷冻消融在气道内有应用，针对治疗慢性支气管炎的喷雾冷冻，市面上现存的喷雾导管置于气道壁组织腔 (6)中，如图1所示，其作用范围、作用长度一定，针对较长的支气管时，需要移动导管位置并重复多次进行喷雾冷冻，对移动的距离有严格要求，操作复杂，手术时间长。Compared with thermal ablation, cryoablation is less likely to cause cartilage damage, and rarely occurs airway softening, collapse, etc., and can also prevent secondary dynamic stenosis; cryotherapy is less likely to cause frozen parts and surrounding tissue. controllable depth of cryotherapy is less likely to cause serious damage to the adjacent large blood vessels and trachea, less likely to cause perforation and bleeding, and is conducive to tissue repair; cryoablation will not promote the proliferation of granulation tissue, and it is not easy to produce scar tissue. Cryoablation has applications in the airway. For spray freezing for the treatment of chronic bronchitis, the existing spray catheters on the market are placed in the airway wall tissue cavity (6), as shown in Figure 1. The scope and length of action are certain. When the bronchus is long, it is necessary to move the position of the catheter and repeat the spray freezing for many times. There are strict requirements on the moving distance, the operation is complicated, and the operation time is long.

发明内容SUMMARY OF THE INVENTION

为解决上述技术缺陷，本发明提供了如下技术方案：In order to solve the above-mentioned technical defects, the present invention provides the following technical solutions:

一种作用范围可调节的喷雾冷冻导管，包括冷冻导管管体，管体包括隔热管路、进气管路，隔热管路套在进气管路上，且进气管路端部设置多个喷雾喷头，沿轴向分布，进气管路进气，以单个或多个喷雾喷头进行喷雾。A spray refrigerating conduit with an adjustable range of action, comprising a refrigerating conduit pipe body, the pipe body comprises a heat insulation pipeline and an air intake pipeline, the heat insulation pipeline is sleeved on the intake pipeline, and a plurality of spray nozzles are arranged at the end of the intake pipeline , distributed along the axial direction, the intake pipe is inhaled, and sprayed with single or multiple spray nozzles.

本喷雾导管改进结构，以轴向分布多个喷雾喷头，根据需求以单个或多个共同进行喷雾，喷雾冷冻范围可调节，避免重复喷雾，提高使用的便利性。The improved structure of the spray conduit can distribute a plurality of spray nozzles in the axial direction, and the spray nozzles can be sprayed together in one or more according to the requirements. The spray freezing range can be adjusted, repeated spraying can be avoided, and the convenience of use is improved.

此外，隔热管路可有效隔热，防止制冷剂非必要的热交换，有利于制冷剂快速输送至喷雾喷头处，减少输送过程中制冷剂的损耗，提高冷冻治疗的效率，避免非喷头处的低温带来的损伤，保护医患。In addition, the thermal insulation pipeline can effectively insulate the heat, prevent unnecessary heat exchange of the refrigerant, facilitate the rapid delivery of the refrigerant to the spray nozzle, reduce the loss of refrigerant during the transportation process, improve the efficiency of cryotherapy, and avoid the need for non-spray nozzles. Injury caused by low temperature, protect doctors and patients.

进一步，隔热管路管壁与进气管路管壁之间为多点式接触，可防止进气管路和隔热管路的管壁大面积贴合，影响隔热效果。Further, the multi-point contact between the pipe wall of the thermal insulation pipeline and the pipe wall of the intake pipeline can prevent the large area of the pipe walls of the intake pipeline and the thermal insulation pipeline from being fitted together, which affects the thermal insulation effect.

进一步，隔热管路为真空管路，真空管路上设置真空管路接头且一端与管壁中空腔或隔热管路与进气管路之间间隙相连通，另端以对接真空泵，真空绝热，隔热效果更佳。Further, the thermal insulation pipeline is a vacuum pipeline, and a vacuum pipeline joint is set on the vacuum pipeline, and one end is connected with the hollow cavity in the pipe wall or the gap between the thermal insulation pipeline and the intake pipeline, and the other end is connected to the vacuum pump, vacuum insulation, and thermal insulation effect. better.

进一步，喷雾喷头包括第一喷雾喷头、第二喷雾喷头，第二喷雾喷头尾端与进气管路连接，首端开口供第一喷雾喷头伸缩。Further, the spray nozzle includes a first spray nozzle and a second spray nozzle, the tail end of the second spray nozzle is connected with the air intake pipeline, and the first spray nozzle is opened at the head end for expansion and contraction of the first spray nozzle.

进一步，还包括柔性推杆，其一端在冷冻导管管体内延伸且与第一喷雾喷头连接，另端自冷冻导管管体的端部或侧壁伸出，以推杆施力使第一喷雾喷头自第二喷雾喷头开口处伸出或缩回，以推杆实现第一、第二喷雾喷头位置的改变，进而改变作用范围的大小，整体结构简单、稳定；冷冻导管的喷雾喷头的整体长度更可控(第一、第二喷雾喷头可以重叠分布，减少占初始状态的长度)，更利于冷冻导管的输送、操作等；可以更精准的控制有效喷雾开口的数量；实际操作过程更简单、方便。Further, also include a flexible push rod, one end of which extends in the cryoconduit pipe body and is connected with the first spray nozzle, and the other end extends from the end or sidewall of the cryo catheter pipe body, to force the first spray nozzle with the push rod. Extends or retracts from the opening of the second spray nozzle to change the position of the first and second spray nozzles with a push rod, thereby changing the size of the scope of action, the overall structure is simple and stable; the overall length of the spray nozzle of the freezing conduit is longer Controllable (the first and second spray nozzles can be overlapped and distributed to reduce the length of the initial state), which is more conducive to the transportation and operation of the freezing catheter; the number of effective spray openings can be controlled more accurately; the actual operation process is simpler and more convenient .

优选，推杆另端设置刻度线，以提示推杆伸入管腔内长度，根据长度变化可知道目前喷雾喷头的位置，有利于精确控制。Preferably, a scale line is set at the other end of the push rod to indicate the length of the push rod extending into the lumen, and the current position of the spray nozzle can be known according to the length change, which is conducive to precise control.

进一步，进气管路为多条，与喷雾喷头分别对应连接，且位于前方的喷雾喷头尾端部密封以与后方的喷雾喷头之间相隔断，分别供应制冷剂，互不干扰，方便调节喷雾冷冻范围。Further, there are multiple air intake pipelines, which are respectively connected with the spray nozzles, and the rear end of the spray nozzles located in the front is sealed to be separated from the rear spray nozzles, respectively supplying refrigerant without interfering with each other, which is convenient to adjust the spray freezing. scope.

进一步，还包括手柄，安装在进气管路尾端且设置进气接头与进气管路连接，方便使用及对接其他设备。Further, a handle is also included, which is installed at the tail end of the intake pipe and is provided with an intake joint to be connected with the intake pipe, which is convenient for use and docking with other equipment.

进一步，还包括温度传感器，设置在喷雾喷头腔内，如温度传感器与外设监控设备连接，有利于时刻监控冷冻温度，以便于调节制冷剂温度。Further, it also includes a temperature sensor, which is arranged in the spray nozzle cavity. For example, the temperature sensor is connected to a peripheral monitoring device, which is conducive to monitoring the freezing temperature at all times, so as to adjust the refrigerant temperature.

进一步，隔热管路与进气管路能相对彼此滑动，以调节进气管路端部自隔热管路露出的长度，进而调节喷雾喷头的伸出长度，从而改变喷雾冷冻作用范围。Further, the thermal insulation pipeline and the intake pipeline can slide relative to each other to adjust the length of the end of the intake pipeline exposed from the thermal insulation pipeline, thereby adjusting the extension length of the spray nozzle, thereby changing the scope of spray freezing.

进一步，还包括卡扣，固定在进气管路上，对应隔热管路的端面上开槽，隔热管路的端部置于槽中，且凹槽的尺寸与隔热管路的管壁紧配合，提高隔热管路的稳定性。Further, it also includes a buckle, which is fixed on the air intake pipeline, and the end surface of the corresponding thermal insulation pipeline is slotted, the end of the thermal insulation pipeline is placed in the slot, and the size of the groove is tight with the pipe wall of the thermal insulation pipeline. Cooperate to improve the stability of the thermal insulation pipeline.

与现有技术相比，本发明的有益效果：Compared with the prior art, the beneficial effects of the present invention:

1、本喷雾冷冻导管改进结构，以喷雾范围可调节，提高使用的便利性。1. The structure of the spray freezing conduit is improved, and the spray range can be adjusted to improve the convenience of use.

附图说明Description of drawings

为了更清楚地说明本发明实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。In order to illustrate the technical solutions in the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings used in the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative effort.

图1是常规喷雾冷冻导管作用机理图；Fig. 1 is the action mechanism diagram of conventional spray freezing catheter;

图2是本喷雾冷冻导管第一种结构图；Fig. 2 is the first structure diagram of this spray freezing conduit;

图3是本喷雾喷头开口结构图；Fig. 3 is this spray nozzle opening structure diagram;

图4是本喷雾冷冻导管第二种结构图；Fig. 4 is the second structure diagram of this spray freezing conduit;

图5是本喷雾冷冻导管第三种结构图；Fig. 5 is the third structure diagram of this spray freezing conduit;

图6是本喷雾冷冻导管第四种结构图；Fig. 6 is the fourth structure diagram of this spray freezing conduit;

图7是图6中第一喷雾喷头伸出结构图；Fig. 7 is the first spray nozzle in Fig. 6 to extend the structural diagram;

图8是真空管路与进气管路横截面结构图；Figure 8 is a cross-sectional structural diagram of the vacuum pipeline and the intake pipeline;

图9是图4的外形结构图；Fig. 9 is the outline structure diagram of Fig. 4;

图10是温感传感器安装结构图；Figure 10 is the installation structure diagram of the temperature sensor;

图11是进气管路上刻度线结构图；Figure 11 is a structural diagram of the scale line on the intake pipeline;

其中，附图标记为：Among them, the reference numerals are:

1、喷雾喷头；2、冷冻管管体；3、手柄；4、推杆；5、温度传感器；6、气道壁组织； 11、第一喷雾喷头；12、第二喷雾喷头；21/24、进气管路；22、绝热管路；23、卡扣；221、接头；222、密封圈；31/34、进气接头。1. Spray nozzle; 2. Freezing tube body; 3. Handle; 4. Push rod; 5. Temperature sensor; 6. Airway wall tissue; 11. First spray nozzle; 12. Second spray nozzle; 21/24 , Intake pipeline; 22, Insulation pipeline; 23, Buckle; 221, Joint; 222, Sealing ring; 31/34, Intake joint.

具体实施方式Detailed ways

下面结合附图和具体实施例对本发明作进一步说明。The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

本作用范围可调节的喷雾冷冻导管，包括冷冻导管管体2，管体包括隔热管路22、进气管路21，隔热管路套在进气管路上，且进气管路端部设置多个喷雾喷头1，沿轴向分布，进气管路进气，以单个或多个喷雾喷头进行喷雾。The spray refrigerating conduit with adjustable scope of action includes a refrigeratingconduit pipe body 2, the pipe body includes aheat insulation pipeline 22 and anair intake pipeline 21, the heat insulation pipeline is sleeved on the air intake pipeline, and the end of the air intake pipeline is provided with a plurality of Thespray nozzles 1 are distributed along the axial direction, and the air intake pipeline takes in air, and sprays with single or multiple spray nozzles.

对于实现以单个或多个喷雾喷头进行喷雾的结构，大致分三个方向，如下：For the structure that realizes spraying with single or multiple spray nozzles, there are roughly three directions, as follows:

第一方向为，进气管路为多条，与喷雾喷头分别对应连接，且位于前方的喷雾喷头尾端部密封以与后方的喷雾喷头之间相隔断，分别供应制冷剂。In the first direction, there are multiple intake pipes, which are respectively connected to the spray nozzles, and the rear ends of the front spray nozzles are sealed to be separated from the rear spray nozzles, respectively supplying refrigerant.

举例而言，如图2所示，图中在进气管路端部分布两个喷雾喷头，分别为第一喷雾喷头 11、第二喷雾喷头12，沿轴向分布，喷雾喷头可由两个独立的喷头固定成型，或由一段管路两端密封，中间隔断成型，管壁上开口形成两个喷雾喷头，或直接在隔热管路端部腔内隔断成两个独立的腔体，腔壁上开口形成喷雾喷头，即为图2中所示结构，两个进气管路21/24 沿隔热管路延伸，其端部分别伸入第一喷雾喷头、第二喷雾喷头内，根据需要开启使单个或两个喷头同时喷雾，实现喷雾冷冻范围的调节。For example, as shown in FIG. 2 , two spray nozzles are distributed at the end of the air intake pipeline, namely thefirst spray nozzle 11 and thesecond spray nozzle 12, which are distributed along the axial direction. The spray nozzles can be composed of two independent nozzles. The nozzle is fixed and formed, or is sealed at both ends of a section of pipeline, and the middle is interrupted and formed. The opening on the pipe wall forms two spray nozzles, or it is directly divided into two independent cavities in the cavity at the end of the thermal insulation pipeline. The opening forms a spray nozzle, which is the structure shown in Figure 2. The twoair intake pipes 21/24 extend along the heat insulation pipeline, and their ends respectively extend into the first spray nozzle and the second spray nozzle. A single or two nozzles can spray at the same time to realize the adjustment of the spray freezing range.

第二方向为，隔热管路与进气管路能相对彼此滑动，以调节进气管路端部自隔热管路露出的长度，进而调节喷雾喷头的伸出长度，从而改变喷雾冷冻作用范围。The second direction is that the thermal insulation pipeline and the intake pipeline can slide relative to each other to adjust the length of the end of the intake pipeline exposed from the thermal insulation pipeline, thereby adjusting the extension length of the spray nozzle, thereby changing the scope of spray freezing.

举例而言，如图4所示，进气管路首端沿管路轴向划分多个区域，每个区域内管路周壁上开口形成喷雾喷头，图中以两个喷雾喷头进行展示，前方为第一喷雾喷头，后方为第二喷雾喷头，推动进气管路调节其首端自隔热管路端部口中伸出的长度，实现喷雾范围的改变。For example, as shown in Figure 4, the head end of the intake pipeline is divided into multiple areas along the axis of the pipeline, and the openings on the peripheral wall of the pipeline in each area form spray nozzles. In the figure, two spray nozzles are shown, the front is The first spray nozzle, followed by the second spray nozzle, push the intake pipe to adjust the length of the head end protruding from the end port of the heat insulation pipe, so as to realize the change of the spray range.

优选在进气管路上设刻度线，以实现准确调节位置。It is preferable to set a scale line on the intake pipeline to achieve accurate adjustment of the position.

优选在进气管路上固定卡扣23，如图4所示，对应隔热管路的端面上开槽，隔热管路的端部置于槽中，且凹槽的尺寸与隔热管路的管壁紧配合，以紧配合的方式提高隔热管路的稳定性，同时还可施力移动隔热管路。It is preferable to fix thebuckle 23 on the intake pipe. As shown in FIG. 4 , a groove is formed on the end surface of the corresponding thermal insulation pipeline, the end of the thermal insulation pipeline is placed in the groove, and the size of the groove is the same as that of the thermal insulation pipeline. The pipe wall is tightly fitted to improve the stability of the thermal insulation pipeline in a tight fit manner, and at the same time, it can also exert force to move the thermal insulation pipeline.

第三方向为，喷雾喷头之间为类伸缩套管结构，外设推杆连接，以推动伸长或缩短。The third direction is that the spray nozzles are in a telescopic casing-like structure, and the external push rods are connected to push the extension or shortening.

举例而言，如图6、图7所示，以两喷头为例进行展示，进气管路端部成型两个管径不同的喷头，分别为第一喷雾喷头、第二喷雾喷头，第二喷雾喷头尾端与进气管路连接，首端开口供第一喷雾喷头伸缩；并增设柔性推杆4，其一端在进气管路中延伸且与第一喷雾喷头连接，另端自冷冻导管管体的端部或侧壁伸出，图6中为侧壁伸出，使用时，以推杆施力使第一喷雾喷头自第二喷雾喷头开口处伸出或缩回。For example, as shown in Figures 6 and 7, two nozzles are used as an example to show. The end of the intake pipeline is formed with two nozzles with different pipe diameters, namely the first spray nozzle, the second spray nozzle, and the second spray nozzle. The tail end of the nozzle is connected with the air intake pipeline, and the first end is open for the first spray nozzle to expand and contract; and a flexible push rod 4 is added, one end of which extends in the air intake pipeline and is connected to the first spray nozzle, and the other end is connected from the refrigerating conduit pipe body. The end or side wall is extended, and the side wall is extended in FIG. 6 . When in use, the first spray nozzle is extended or retracted from the opening of the second spray nozzle by applying force with a push rod.

其中，推杆自然也可沿进气管路端部伸出，根据需求自由选择。Among them, the push rod can naturally also extend along the end of the intake pipeline, which can be freely selected according to the needs.

此外，优选在推杆另端刻画或喷涂刻度线，以提示推杆伸入管腔内长度，根据长度变化可知道目前喷雾喷头的位置，有利于精确控制第一喷雾喷头的位置，置于推杆的材质可根据性能需求自由选择。In addition, it is preferable to draw or spray a scale line on the other end of the push rod to indicate the length of the push rod extending into the lumen, and the current position of the spray nozzle can be known according to the length change, which is conducive to accurately controlling the position of the first spray nozzle. The material of the rod can be freely selected according to performance requirements.

此外，上述三个方向的结构也可根据需求自由组合，以实现单个或多个喷雾喷头进行喷雾。In addition, the structures in the above three directions can also be freely combined according to requirements, so as to realize single or multiple spray nozzles for spraying.

此外，对于管壁或腔壁喷雾口，或独立喷液头的喷雾口形状而言，如图3所示，可选择的形状包括图3中矩形，制冷剂更容易喷出，喷出阻力小，加工工艺更简单；图3中圆形，制冷剂喷出更均匀，导管推送性更好；对于开口的大小而言，优选远端的喷雾开口大于近端，制冷剂流通时，先输送到近端，即近端压力较大，此时，当喷雾开口较小时，阻碍制冷剂喷出，远端制冷剂压力较小，此时，喷雾开口较大时，利于制冷剂喷出，举例如图3中所示，锥形体，或图3中所示，多个孔径自大至小排成一列；当然也可根据需求选择其他形状。In addition, for the shape of the spray port on the tube wall or the cavity wall, or the spray port of the independent liquid spray head, as shown in Figure 3, the optional shape includes the rectangle in Figure 3, the refrigerant is easier to spray, and the spray resistance is small , the processing technology is simpler; in the circle in Figure 3, the refrigerant is sprayed more uniformly, and the catheter pushability is better; for the size of the opening, it is preferable that the spray opening at the far end is larger than the near end, and when the refrigerant circulates, it is first delivered to The pressure at the proximal end, that is, the pressure at the proximal end is relatively large. At this time, when the spray opening is small, it hinders the refrigerant from spraying out, and the refrigerant pressure at the far end is small. At this time, when the spray opening is large, it is conducive to the refrigerant spraying. As shown in FIG. 3, the cone, or as shown in FIG. 3, a plurality of apertures are arranged in a row from large to small; of course, other shapes can also be selected according to requirements.

此外，还可根据需要划分更多区域，开孔形成喷雾喷头，如第一喷雾喷头、第二喷雾喷头、第三喷雾喷头等。In addition, more areas can be divided according to needs, and the holes can be formed to form spray heads, such as the first spray head, the second spray head, the third spray head, and the like.

此外，对于隔热管路而言，隔热管路的管壁与进气管路管壁之间为多点式接触，可防止进气管路和隔热管路的管壁大面积贴合，影响隔热效果，适用单条进气管路，以图8为例展示，图中在隔热管路内管壁上成型有凸起结构，如凸块，凸楞等，一方面有助提高管路的刚性、抗折性及推送性能，另一方面在于，防止所述进气管路和真空管路的管壁大面积贴合，影响隔热效果。In addition, for the thermal insulation pipeline, there is multi-point contact between the wall of the thermal insulation pipeline and the wall of the intake pipeline, which can prevent the large area of the wall of the intake pipeline and the thermal insulation pipeline from being fitted together, which will affect the The heat insulation effect is suitable for a single air intake pipeline, as shown in Figure 8. In the figure, convex structures, such as bumps and ridges, are formed on the inner pipe wall of the heat insulation pipeline. Rigidity, bending resistance and pushing performance, on the other hand, are to prevent the wall of the intake line and the vacuum line from being abutted in a large area, which affects the heat insulation effect.

隔热管路可选择的结构包括以绝热材料制备，以及采用真空管路，真空管路上设置真空管路接头221且一端与或隔热管路与进气管路之间间隙相连通，另端以对接真空泵，真空绝热，隔热效果更佳，如图2所示，多条进气管路在真空路管腔内延伸，接头直接与真空管路腔内连通；或如图6所示，单条进气管路结构，真空管路端部以缩口形式与进气管路连接，接头直接与真空管路内管壁与进气管路外管壁之间间隙连通；或如图5所示，真空管路在端部与进气管路之间安装密封圈222，既提高密封性能，又可相对滑动。The optional structure of the thermal insulation pipeline includes the preparation of thermal insulation materials and the use of a vacuum pipeline. The vacuum pipeline is provided with a vacuum pipeline joint 221 and one end is connected with the gap between the thermal insulation pipeline and the intake pipeline, and the other end is connected to the vacuum pump. Vacuum insulation has better thermal insulation effect. As shown in Figure 2, multiple intake pipes extend in the vacuum pipe cavity, and the joints are directly connected to the vacuum pipe cavity; or as shown in Figure 6, a single intake pipe structure, The end of the vacuum pipeline is connected with the intake pipeline in the form of a constriction, and the joint is directly connected to the gap between the inner wall of the vacuum pipeline and the outer wall of the intake pipeline; or as shown in Figure 5, the vacuum pipeline is connected to the intake pipeline at the end The sealingring 222 is installed between them, which not only improves the sealing performance, but also can slide relatively.

或，真空管路为多层结构，如两层管壁之间形成空腔，接头与空腔连通，如图4所示。Or, the vacuum pipeline has a multi-layer structure, for example, a cavity is formed between the two layers of tube walls, and the joint is communicated with the cavity, as shown in FIG. 4 .

此外，还包括手柄3，安装在进气管路尾端且手柄端部安装进气接头31，一端与进气管路连接，另端与制冷剂输入装置连接，当然也可手柄一端空腔与进气管路对接，另端安装进气管路与空腔连通。In addition, it also includes ahandle 3, which is installed at the tail end of the intake pipe and an intake joint 31 is installed at the end of the handle, one end is connected to the intake pipe, and the other end is connected to the refrigerant input device. The other end is connected with the air inlet pipe to connect with the cavity.

至于手柄与隔热管路，可选择固定连接，或二者可在轴向上相对移动，对于其对卡扣的连接方式不做限定，可连接，可不连接，根据需求而定。As for the handle and the heat insulation pipeline, you can choose to be fixedly connected, or the two can be moved relative to each other in the axial direction. There is no limitation on the connection method of the buckle, which can be connected or not, depending on the needs.

此外，还包括温度传感器5，安装在喷雾喷头腔内,如图10所示，如温度传感器与外设监控设备连接，有利于时刻监控冷冻温度，以便于调节制冷剂温度。In addition, it also includes atemperature sensor 5, which is installed in the spray nozzle cavity, as shown in Figure 10. If the temperature sensor is connected to a peripheral monitoring device, it is beneficial to monitor the freezing temperature at all times, so as to adjust the refrigerant temperature.

上述结构可根据性能、结构自由选择组合，以实现喷雾作用面积可调的目的，下面以优选出的具体组合方式的实施例予以展示。The above structures can be freely selected and combined according to the performance and structure, so as to achieve the purpose of adjusting the spraying area, and the following examples are shown with the preferred specific combination.

实施例1Example 1

如图2所示，本喷雾冷冻导管，包括冷冻导管管体2，管体包括隔热管路、进气管路，高分子材料制备，隔热管路22套在两条进气管路21/24上，隔热管路选用真空管路，高分子材料制备，其接头221首端在管路侧方伸出，尾端与真空管路腔内连通，在真空管路端部腔内隔断成两个独立的腔体，腔壁上开若干圆孔形喷雾口形成第一喷雾喷头11、第二喷雾喷头 12，圆口如图3所示，两个进气管路沿真空管路腔内延伸，其端部分别伸入第一喷雾喷头、第二喷雾喷头内。As shown in Figure 2, the spray freezing conduit includes a freezingconduit pipe body 2. The pipe body includes a heat insulation pipeline and an air intake pipeline, which are made of polymer materials. On the upper side, the heat insulation pipeline is made of vacuum pipeline and made of polymer material. The head end of the joint 221 protrudes from the side of the pipeline, and the tail end communicates with the cavity of the vacuum pipeline, and is separated into two independent parts in the cavity at the end of the vacuum pipeline. In the cavity, a number of circular hole-shaped spray openings are opened on the cavity wall to form thefirst spray nozzle 11 and thesecond spray nozzle 12. The circular openings are shown in Figure 3, and the two air intake pipelines extend along the vacuum pipeline cavity, and their ends are respectively Extend into the first spray nozzle and the second spray nozzle.

进气管路尾端固定手柄3，以两个进气接头31/34以分别与进气管路对接，真空管路端部与手柄固定，使用时根据需要开启使单个或两个喷头同时喷雾，实现喷雾冷冻范围的调节。Thehandle 3 is fixed at the end of the intake pipe, and twointake joints 31/34 are used to connect with the intake pipe respectively. The end of the vacuum pipe is fixed to the handle. When in use, it can be opened as needed to make a single or two nozzles spray at the same time to achieve spraying. Adjustment of freezing range.

实施例2Example 2

如图4所示，本喷雾冷冻导管，包括冷冻导管管体2，管体包括隔热管路22、进气管路 21，高分子材料制备，隔热管路套在单条进气管路上，隔热管路选用双层管壁的真空管路，与进气管路相配合的管壁上成型多段式凸楞，轴向延伸，如图8所示，其接头221首端在管路侧方伸出，尾端与真空管路两层管壁之间腔内连通，且本实施例中在进气管路上固定卡扣 23，环体，对应真空管路的端面上开槽，真空管路端部置于槽中，且通过槽宽实现与真空管路的紧配合，施力可移动真空管路，卡扣后方的进气管路尾端上固定手柄3，手柄端部安装进气接头31，与进气管路对接。As shown in Figure 4, the spray freezing conduit includes a freezingconduit pipe body 2. The pipe body includes aheat insulation pipeline 22 and anair intake pipeline 21, which are made of polymer materials. The pipeline adopts a double-walled vacuum pipeline, and the pipe wall matched with the intake pipeline is formed with multi-section convex corrugations, which extend axially. As shown in Figure 8, the head end of the joint 221 protrudes from the side of the pipeline. The tail end communicates with the cavity between the two-layer tube walls of the vacuum pipeline, and in this embodiment, abuckle 23 is fixed on the intake pipeline, and the ring body corresponds to the end face of the vacuum pipeline. And the tight fit with the vacuum pipeline is achieved through the groove width, the vacuum pipeline can be moved by applying force, thehandle 3 is fixed on the tail end of the intake pipeline behind the buckle, and the intake joint 31 is installed at the end of the handle to connect with the intake pipeline.

本实施例中，进气管路首端管壁上开若干口形成喷雾喷头1，且划分区域，前方为第一喷雾喷头11，后方为第二喷雾喷头12，管壁上开口形状如图3所示。In this embodiment, a number of openings are opened on the wall of the head end of the intake pipe to form thespray nozzle 1, and the area is divided, the front is thefirst spray nozzle 11, and the rear is thesecond spray nozzle 12, and the shape of the opening on the pipe wall is shown in Figure 3 Show.

本实施例中，在第一喷雾喷头、第二喷雾喷头腔内分别安装温度传感器5，如图10所示，以温度传感器与外设的监控设备连接。In this embodiment, atemperature sensor 5 is installed in the cavity of the first spray nozzle and the second spray nozzle respectively, as shown in FIG. 10 , and the temperature sensor is connected to the peripheral monitoring device.

优选，本实施例中，在真空管路外壁、进气管路外壁上均喷涂刻度线，如图11、图9所示。Preferably, in this embodiment, scale lines are sprayed on the outer wall of the vacuum pipeline and the outer wall of the intake pipeline, as shown in FIG. 11 and FIG. 9 .

使用时，调节真空管路，调节喷雾区域，通过观察刻度线准确调节。When in use, adjust the vacuum line, adjust the spray area, and adjust accurately by observing the scale line.

实施例3Example 3

如图5所示，与实施例2相比，本实施例中，真空管路为单层结构，真空管路在腔内两端部与进气管路之间安装动密封圈222，真空管路的接头221与真空管路内管壁、进气管路之间的间隙连通，同样在真空管路内管壁上成型凸楞，轴向延伸，当然也可在进气管路外壁上成型凸楞。As shown in FIG. 5 , compared withEmbodiment 2, in this embodiment, the vacuum pipeline has a single-layer structure, and adynamic sealing ring 222 is installed between the two ends of the vacuum pipeline and the intake pipeline, and the joint 221 of the vacuum pipeline is installed. It communicates with the gap between the inner tube wall of the vacuum pipeline and the air intake pipeline, and also forms convex ridges on the inner tube wall of the vacuum pipeline, extending axially, and of course, can also form convex ridges on the outer wall of the air intake pipeline.

实施例4Example 4

如图6、图7所示，本实施例中，本喷雾冷冻导管，包括冷冻导管管体2，管体包括隔热管路22、进气管路21，高分子材料制备，隔热管路套在单条进气管路上，隔热管路选用单层管壁的真空管路，与进气管路相配合的管壁上成型多段式凸楞，轴向延伸，如图8所示，本实施例中真空管路与进气管路固定，其真空管路接头221首端在管路侧方伸出，尾端与真空管路与进气管路之间间隙连通，进气管路尾端上固定手柄3，手柄端部安装进气接头31，与进气管路对接，真空管路尾端与手柄固定。As shown in Figures 6 and 7, in this embodiment, the spray freezing catheter includes a freezingcatheter pipe body 2, the pipe body includes aheat insulation pipeline 22 and anair intake pipeline 21, which are made of polymer materials, and the heat insulation pipeline is sleeved. On a single air intake pipeline, a vacuum pipeline with a single-layer tube wall is used for the heat insulation pipeline, and a multi-section convex corrugation is formed on the tube wall matched with the air intake pipeline, extending axially, as shown in FIG. 8 , in this embodiment, the vacuum tube The pipeline is fixed with the intake pipeline, the head end of the vacuum pipeline joint 221 protrudes from the side of the pipeline, the tail end is connected with the gap between the vacuum pipeline and the intake pipeline, thehandle 3 is fixed on the tail end of the intake pipeline, and the end of the handle is installed The intake joint 31 is connected to the intake pipeline, and the tail end of the vacuum pipeline is fixed to the handle.

本实施例中，进气管路首端管壁上开若干口形成喷雾喷头1，且划分区域，前方为第一喷雾喷头11，后方为第二喷雾喷头12，且第二喷雾喷头与第一喷雾喷头为分体式结构，第一喷雾喷头的管径小于第二喷雾喷头，第二喷雾喷头端部开口，第一喷雾喷头自此开口伸缩，且柔性推杆4自真空管路侧壁开口伸入，沿进气管路腔内延伸至与第一喷雾喷头连接，施力推杆推动第一喷雾喷头自第二喷雾喷头开口伸出，或回拉推杆使第一喷雾喷头复位。In this embodiment, a number of openings are opened on the wall of the head end of the intake pipe to form thespray nozzle 1, and the area is divided, the front is thefirst spray nozzle 11, the rear is thesecond spray nozzle 12, and the second spray nozzle is connected to thefirst spray nozzle 12. The nozzle is a split structure, the diameter of the first spray nozzle is smaller than that of the second spray nozzle, the end of the second spray nozzle is open, the first spray nozzle expands and contracts from this opening, and the flexible push rod 4 extends from the opening of the side wall of the vacuum pipeline, Extend along the air inlet pipeline cavity to connect with the first spray nozzle, the push rod pushes the first spray nozzle to extend from the opening of the second spray nozzle, or the push rod is pulled back to reset the first spray nozzle.

此外，为了避免第一喷雾喷头脱离第二喷雾喷头，本实施例中在第二喷雾喷头端部开口处腔内安装密封圈，在第一喷雾喷头尾端周壁径向延伸形成凸环，以密封圈限位凸环。In addition, in order to prevent the first spray head from being separated from the second spray head, in this embodiment, a sealing ring is installed in the cavity at the opening of the end of the second spray head, and a convex ring is radially extended on the peripheral wall of the tail end of the first spray head to seal Ring limit collar.

本实施例中，管壁上开口形状如图3所示。In this embodiment, the shape of the opening on the pipe wall is shown in FIG. 3 .

优选，本实施例中，在位于冷冻导管管体外的推杆上喷涂刻度线，通过观察刻度线准确调节第一喷雾喷头的位置，实现喷雾范围的准确调节。Preferably, in this embodiment, a scale line is sprayed on the push rod located outside the cryoduct tube, and the position of the first spray nozzle is accurately adjusted by observing the scale line, so as to achieve accurate adjustment of the spray range.

优选，还可安装卡扣，如图4中所示结构及位置，单层真空管路与卡扣紧配合，施力真空管路移动，配合第一喷雾喷头与第二喷雾喷头的伸缩调节，可进一步扩大喷雾作用范围。Preferably, a buckle can also be installed. The structure and position shown in Figure 4, the single-layer vacuum pipeline is tightly matched with the buckle, and the vacuum pipeline is moved by applying force. With the expansion and contraction adjustment of the first spray nozzle and the second spray nozzle, further Expand the spray range.

以上仅是本发明的优选实施方式，本发明的保护范围并不仅局限于上述实施例，凡属于本发明思路下的技术方案均属于本发明的保护范围。应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明原理前提下的若干改进和润饰，这些改进和润饰也应视为本发明的保护范围。The above are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions that belong to the idea of the present invention belong to the protection scope of the present invention. It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

Translated fromChinese

1.一种作用范围可调节的喷雾冷冻导管，包括冷冻导管管体，其特征在于：管体包括隔热管路、进气管路，隔热管路套在进气管路上，且进气管路端部设置多个喷雾喷头，沿轴向分布，进气管路进气，以单个或多个喷雾喷头进行喷雾。1. a spray freezing conduit with adjustable scope of action, comprising a freezing conduit pipe body, is characterized in that: the pipe body comprises a thermal insulation pipeline, an air intake pipeline, and the thermal insulation pipeline is sleeved on the intake pipeline, and the end of the intake pipeline. A plurality of spray nozzles are arranged in the part, which are distributed along the axial direction, and the air intake pipeline takes in air, and sprays with single or multiple spray nozzles.

2.如权利要求1所述的喷雾冷冻导管，其特征在于：隔热管路管壁与进气管路管壁之间为多点式接触。2 . The spray freezing conduit according to claim 1 , wherein the wall of the thermal insulation pipeline and the wall of the intake pipeline are in multi-point contact. 3 .

3.如权利要求1所述的喷雾冷冻导管，其特征在于：隔热管路为真空管路，真空管路上设置真空管路接头且一端与管壁中空腔或隔热管路与进气管路之间间隙相连通，另端以对接真空泵。3. The spray freezing conduit as claimed in claim 1 is characterized in that: the thermal insulation pipeline is a vacuum pipeline, and the vacuum pipeline is provided with a vacuum pipeline joint and a gap between one end and the hollow cavity in the pipe wall or the thermal insulation pipeline and the intake pipeline Connected, and the other end is connected to the vacuum pump.

4.如权利要求1所述的喷雾冷冻导管，其特征在于：喷雾喷头包括第一喷雾喷头、第二喷雾喷头，第二喷雾喷头尾端与进气管路连接，首端开口供第一喷雾喷头伸缩；4. spray freezing conduit as claimed in claim 1 is characterized in that: the spray nozzle comprises the first spray nozzle, the second spray nozzle, the second spray nozzle tail end is connected with the air inlet pipeline, and the head end opening supplies the first spray nozzle telescopic;

还包括柔性推杆，其一端在冷冻导管管体内延伸且与第一喷雾喷头连接，另端自冷冻导管管体的端部或侧壁伸出，以推杆施力使第一喷雾喷头自第二喷雾喷头开口处伸出或缩回。It also includes a flexible push rod, one end of which extends in the cryo-conduit body and is connected with the first spray nozzle, and the other end extends from the end or sidewall of the cryo-catheter pipe body, so that the first spray nozzle is forced from the first spray nozzle by the push rod. Two spray nozzle openings extend or retract.

5.如权利要求4所述的喷雾冷冻导管，其特征在于：推杆另端设置刻度线，以提示推杆伸入管腔内长度。5. The spray freezing catheter as claimed in claim 4, wherein the other end of the push rod is provided with a scale line to indicate the length of the push rod extending into the lumen.

6.如权利要求1所述的喷雾冷冻导管，其特征在于：进气管路为多条，与喷雾喷头分别对应连接，且位于前方的喷雾喷头尾端部密封以与后方的喷雾喷头之间相隔断。6. spray freezing conduit as claimed in claim 1 is characterized in that: air intake pipeline is a plurality of, and is respectively correspondingly connected with the spray nozzle, and the rear end of the spray nozzle at the front is sealed to be in phase with the rear spray nozzle. cut off.

7.如权利要求1所述的喷雾冷冻导管，其特征在于：还包括手柄，安装在进气管路尾端且设置进气接头与进气管路连接。7 . The spray freezing conduit according to claim 1 , further comprising a handle, which is installed at the rear end of the air intake pipeline and is provided with an air intake joint to be connected to the air intake pipeline. 8 .

8.如权利要求1所述的喷雾冷冻导管，其特征在于：还包括温度传感器，设置在喷雾喷头腔内。8 . The spray freezing conduit according to claim 1 , further comprising a temperature sensor arranged in the spray nozzle cavity. 9 .

9.如权利要求1-8中任一项所述的喷雾冷冻导管，其特征在于：隔热管路与进气管路能相对彼此滑动，以调节进气管路端部自隔热管路露出的长度。9. The spray freezing conduit according to any one of claims 1 to 8, wherein the thermal insulation pipeline and the intake pipeline can slide relative to each other, so as to adjust the exposure of the end of the intake pipeline from the thermal insulation pipeline. length.

10.如权利要求9所述的喷雾冷冻导管，其特征在于：还包括卡扣，固定在进气管路上，对应隔热管路的端面上开槽，隔热管路的端部置于槽中，且凹槽的尺寸与隔热管路的管壁紧配合。10. The spray freezing conduit as claimed in claim 9, characterized in that: it further comprises a buckle, which is fixed on the air intake pipeline, and the end face of the corresponding thermal insulation pipeline is slotted, and the end of the thermal insulation pipeline is placed in the slot. , and the size of the groove fits tightly with the pipe wall of the thermal insulation pipeline.