WO2016041270A1 - 麻醉蒸发器的芯子和麻醉蒸发器 - Google Patents

麻醉蒸发器的芯子和麻醉蒸发器 Download PDF

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Publication number
WO2016041270A1
WO2016041270A1 PCT/CN2014/093663 CN2014093663W WO2016041270A1 WO 2016041270 A1 WO2016041270 A1 WO 2016041270A1 CN 2014093663 W CN2014093663 W CN 2014093663W WO 2016041270 A1 WO2016041270 A1 WO 2016041270A1
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WIPO (PCT)
Prior art keywords
core
anesthetic
pipe
seat
evaporator
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PCT/CN2014/093663
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English (en)
French (fr)
Inventor
贺百元
郭德林
唐志勇
马建新
邹海涛
Original Assignee
深圳市科曼医疗设备有限公司
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Publication of WO2016041270A1 publication Critical patent/WO2016041270A1/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
    • A61M16/01—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes specially adapted for anaesthetising
    • 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
    • A61M16/14—Preparation of respiratory gases or vapours by mixing different fluids, one of them being in a liquid phase
    • A61M16/18—Vaporising devices for anaesthetic preparations

Definitions

  • the invention relates to the technical field of anesthesia machines, in particular to a core of an anesthetic evaporator and an anesthetic evaporator.
  • An anesthetic evaporator for measuring anesthetic, using a bypass principle to pass part of the gas through the bypass gas path, and another part of the gas passing through the evaporation chamber of the high concentration anesthetic vapor, in the mixing chamber through the metering mixing valve,
  • the road gases are mixed in the specified ratio to obtain the required concentration of anesthetic gas.
  • a core is usually installed in the evaporation chamber, and at least a portion of the core is immersed in the anesthetic solution.
  • a high concentration of anesthetic vapor is obtained by increasing the evaporation area by the core.
  • the core of the existing anesthetic evaporator is attached to a spiral core seat by cotton, and the gas passes through the spiral passage to increase the evaporation of the liquid. The processing cost is high, the installation is difficult, and the effect is not obvious.
  • An anesthetic evaporator core comprising a core seat and a core tube, wherein the core tube is spirally fixed on the outer side of the core seat along a circumferential direction of the core seat, and the core tube is a square hollow tube.
  • the core conduit is formed from a cotton wrapped square ridge skeleton.
  • the square ridge skeleton is a square-sectioned spring.
  • one end of the core pipe is provided with a mounting hole
  • the core seat corresponding to the core pipe mounting hole is provided with a mounting groove
  • the fixing pin is inserted into the mounting groove through the mounting hole to fix the core pipe On the core seat.
  • the other end of the core pipe is fixed to the core seat by a fixing piece
  • the fixing piece is an annular structure
  • the outer circumference of the ring of the fixing piece further has an ear protruding outward, the ear
  • the portion is semicircular
  • the outer circumference of the ring of the fixing piece has a claw portion that protrudes outward, and the claw portion has a claw-like structure.
  • the outer side and the inner side of the core pipe are respectively respectively provided with an outer cotton core and an inner cotton core
  • the inner and outer cotton cores are columnar
  • one end of the inner and outer cotton cores is provided with a notch to form Skirt.
  • the skirts of the inner and outer wicks are sequentially offset.
  • the inner and outer wicks and cotton are a hybrid assembly of polyethylene, polypropylene, polytetrafluoroethylene or other fibrous material, and the core is composed of a fine metal wire or a fibrous structure assembly.
  • An anesthetic vaporizer comprising an evaporation chamber and an anesthetic evaporator core, the skirt of the inner wick of the anesthetic evaporator core and the skirt of the outer wick extending into the evaporation chamber.
  • a temperature compensation unit is further included, the temperature compensation unit is placed at the center of the core of the anesthetic evaporator core, and the temperature compensation unit is made of a temperature sensitive material.
  • the core pipe of the invention is made into a square hollow pipe, and the conveying space of the anesthetic steam is maximized under a limited size, so that the anesthetic steam can be sent out through the core pipe faster under the action of capillary suction, thereby providing High concentration of anesthetic steam.
  • Figure 1 is a schematic view showing the structure of an evaporator
  • Figure 2 is a schematic diagram of a gas path of an evaporator
  • Figure 3 is a longitudinal cross-sectional view of the anesthetic evaporator core of the embodiment of the present invention.
  • FIG. 4 is a schematic structural view of an anesthetic evaporator core according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural view of a fixing piece of an anesthetic evaporator core according to an embodiment of the present invention.
  • Fig. 6 is a schematic view showing the structure of an inner layer wick of an anesthetic evaporator core according to an embodiment of the present invention.
  • the evaporator generally includes a fresh gas inlet 1, a pressure compensating unit 2, a fresh gas shut-off valve 3, a core 4, a bypass 5, and a temperature compensation unit. 6.
  • the pressure compensating unit 2 is used for pressure compensation, which prevents the gas from flowing backward when the mixed gas outlet 8 is under pressure, and stabilizes the gas flow rate when the fresh gas inlet 1 is under pressure.
  • the evaporation chamber 10 is a container having a bottom wall for storing an anesthetic liquid.
  • the core 4 is placed inside the evaporation chamber 10, a part of the core 4 is immersed in the anesthetic liquid, so that the anesthetic liquid can spread on the core 4, and the core 4 can promote the evaporation of the anesthetic liquid in the evaporation chamber from the liquid.
  • the larger the surface area the better the evaporation effect.
  • the core 4 includes a core holder 41 and a core tube 45 having a square hollow structure, and the core tube 45 is mounted on the core holder 41.
  • the core pipe 45 is spirally fixed to the outside of the core seat 41 in the circumferential direction of the core seat 41.
  • the core seat 41 has a circular cross section.
  • the temperature compensating unit 6 is placed at the center of the core seat 41, and the core seat 41 is further provided with an annular chamber 48 for carrying the passage of the anesthetic vapor vapor through the annular chamber 48 of the core seat when the fresh gas enters the core duct 45 ( The figure does not show) leaving the evaporation chamber.
  • the core tube 45 includes a backbone frame and a cotton cloth that wraps the backbone frame to form a core tube 45 that serves as a support so that the core tube 45 does not become clogged by the cotton collapse.
  • the backbone frame adopts a square spring, thereby forming a square hollow core pipe 45, which can maximize the passage in a small space and increase the circulation space of the anesthetic steam, which can be faster. Provide more high concentration of anesthetic steam.
  • the core 4 can be formed into a structure in which the core seat 41 and the core tube 45 are integrated, for example, the core tube 45 is welded and fixed to the core seat 41.
  • the core can also be made into a detachably mountable structure, such as detachably securing the core tube to the core seat 41.
  • the specific detachable fixing may be a fixing pin, and the mounting hole is provided on the core seat 41 and the core pipe 45, and the detachable fixing is realized by the cooperation of the fixing pin and the mounting hole. Screws may also be used, and screw holes are provided in the core seat 41 and the core pipe 45, and the detachable mounting of the core seat 41 and the core pipe is realized by the cooperation of the screw and the screw hole.
  • other detachable fixings may be adopted. the way.
  • a mounting hole is provided at one end of the core pipe 45, and a mounting groove (not shown) is disposed on the core seat 41 corresponding to the mounting hole of the core pipe 45, and the fixing pin 46 passes through
  • the mounting hole is inserted into the mounting groove, one end of the core pipe 45 is fixed to the core seat 41, and then the core pipe 45 is spirally mounted on the core seat 41 around the circumferential edge of the core seat.
  • the other end of the core pipe 45 is fixed to the core seat 41 by a fixing piece 47.
  • a fixing piece 47 is attached to the bottom of the core pipe 45, and a screw hole is provided in the core seat 41, and the fixing piece 47 is fixed to the core seat 41 by screws, thereby fixing the core pipe 45 to the core seat 41. on.
  • the structure of the fixing piece 47 is as shown in FIG. 5.
  • the fixing piece 47 has a flat annular structure, and the fixing piece 47 has two threaded holes 472 symmetrically on the ring for fixing the fixing piece 47 to the core seat 41.
  • the outer periphery of the fixing piece 47 further has an ear portion 473 and a claw portion 474 which protrude outward.
  • the ear portion 473 is semicircular and is used to press the core tube 45 when the core tube 45 is fixed to the core seat 41.
  • the claw portion 474 is a claw-like structure, and when the core tube 45 is mounted on the core seat 41, not only can the function of pressing the core tube 45 be simultaneously performed, but also the core tube 45 can be prevented from being radially expanded.
  • FIG 4 As shown, when the core pipe 45 is fixed to the core seat 41, the outer core wick 43 is mounted on the outer side of the core pipe 45, and the inner wick 44 is mounted on the inner side.
  • the outer wick 43 and the inner wick 44 have the same structure, but are different in size, so that the outer wick 43 is in close contact with the outer side of the core pipe 45, and the inner wick 44 is in close contact with the inner side of the core pipe 45.
  • the structure of the inner layer wick 44 and the outer wick 43 is as shown in Figs. 4 and 6, and the inner and outer wicks are cylindrical. In other embodiments, the inner and outer wicks may have other cross-sectional shapes.
  • the columnar body is shown in Figs. 4 and 6, and the inner and outer wicks may have other cross-sectional shapes.
  • One end of the inner and outer wicks is provided with a notch 442 to form an inner skirt 441 and an outer skirt 431.
  • the height of the inner and outer wick nicks 442 is exactly equal to the height of the core duct 45.
  • the number of the notches 442 can be set as needed. In the present embodiment, there are three notches 442 for the inner and outer wicks, so that the inner and outer wicks respectively have three skirts.
  • the fixing piece 47 is located in the circumference of the inner layer wick 44, and the claw portion 474 and the ear portion 473 of the fixing piece press the core tube on the notch 442 of the inner layer wick, respectively, to prevent the core tube 45 from being radially expanded.
  • the inner skirt 441 of the inner wick and the outer skirt 431 of the outer wick are sequentially offset, and when the core is placed in the evaporation chamber, the inner skirt 441 of the inner wick and the outer wick are The outer skirt 431 is deep down to evaporate the bottom of the liquid. Since the core tube 45 and the inner and outer wicks are made of cotton, the anesthetic solution can be used even in the case of a small amount of anesthetic solution.
  • the skirts of the inner wick 44 and the outer wick 43 are spread upward.
  • the material of the cotton cloth may be polyethylene or polypropylene. A mixed assembly of polytetrafluoroethylene or other fibrous materials. During the evaporation process, it is converted into a high concentration of anesthetic vapor, which is output through the core tube 45.
  • the fixing pin 46 of the core seat 41 is also provided with a hole for the airflow into the core pipe (not shown).
  • the fresh air flows through the air hole into the core pipe 45 due to the anesthetic.
  • the liquid is absorbed by the core through the skirts of the inner and outer wicks. Under the action of evaporation, the liquid becomes a vapor, and the core tube 45 is filled with an anesthetic vapor.
  • the gas flows in the core pipe 45, and carries a large amount of vaporized gas flowing out from the end of the core pipe 45, and passes through the passage of the annular cavity 48 of the core seat 41 (not shown) Leave the evaporation chamber and enter the concentration control unit.
  • the anesthetic evaporator core of the invention is composed of a core seat and a core tube, and the core tube is detachably fixed on the core seat by a fixing pin and a fixing piece, and the core tube is formed by wrapping a square spring with a cotton cloth.
  • the core has low processing cost, simple processing and easy installation.

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  • Health & Medical Sciences (AREA)
  • Anesthesiology (AREA)
  • Emergency Medicine (AREA)
  • Pulmonology (AREA)
  • Engineering & Computer Science (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)
  • Catching Or Destruction (AREA)

Abstract

一种麻醉蒸发器芯子（4），芯子（4）包括芯座（41）和芯子管道（45），芯子管道（45）沿所述芯座（41）的周向螺旋状固定在芯座（41）外侧，芯子管道（45）为方形中空管道。芯子管道（45）被制成方形中空管道，在有限的尺寸下最大化麻醉蒸汽的输送空间，能够使得麻醉蒸汽在毛细吸力的作用下较快较多的通过芯子管道（45）送出，从而提供高浓度的麻醉蒸汽。

Description

麻醉蒸发器的芯子和麻醉蒸发器
【技术领域】
本发明涉及麻醉机技术领域，尤其是涉及一种麻醉蒸发器的芯子和麻醉蒸发器。
【背景技术】
用于计量麻醉剂的麻醉蒸发器，运用旁路原理，使部分气体通过旁路气路，与另一部分经过高浓度麻醉蒸发汽的蒸发室的气体，在混合腔通过计量混合阀的作用下，两路气体按指定比例混合，获得需要浓度的麻醉气体。
然而，麻醉药液自由挥发不足以提供高浓度的麻醉蒸汽，且不容易控制，因此，通常在蒸发室内安装一个芯子，芯子的至少一部分浸泡在麻醉药液中。通过芯子增加蒸发面积，获得高浓度的麻醉蒸发汽。现有麻醉蒸发器的芯子采用棉依附在加工成螺旋状的芯座上，气体经过螺旋通道以增加药液蒸发，其加工成本高，安装难度大，且效果不是很明显。
【发明内容】
基于此，有必要针对麻醉蒸发器芯子的蒸发效果不佳的问题，提供一种具有较大气体通道空间的麻醉蒸发器芯子和麻醉蒸发器。
一种麻醉蒸发器芯子，包括芯座和芯子管道，芯子管道沿芯座的周向螺旋状固定在芯座外侧，芯子管道为方形中空管道。
在其中一种实施方式中，芯子管道由棉布包裹方形脊梁骨架形成。
在其中一种实施方式中，方形脊梁骨架为方形截面的弹簧。
在其中一种实施方式中，芯子管道的一端设有安装孔，与芯子管道安装孔相对应的芯座上设有安装槽，固定销穿过安装孔插入安装槽将芯子管道固定在芯座上。
在其中一种实施方式中，芯子管道的另一端用固定片将芯子管道固定在芯座上，固定片为环状结构，固定片的环的外周还有向外突出的耳部，耳部为半圆状，固定片的环的外周还有向外突出的爪部，爪部为爪状结构。
在其中一种实施方式中，芯子管道的外侧和内侧分别安装有外层棉芯和内层棉芯，内、外层棉芯为柱状，内、外层棉芯的一端开设有缺口而形成裙边。
在其中一种实施方式中，内、外层棉芯的裙边依次错开。
在其中一种实施方式中，内、外层棉芯和棉布为聚乙烯、聚丙烯、聚四氟乙烯或其他纤维材料的混合集结体，芯子由细金属丝或纤维结构集合体构成。
一种麻醉蒸发器，包括蒸发室和麻醉蒸发器芯子，麻醉蒸发器芯子的内层棉芯的裙边和外层棉芯的裙边伸入蒸发室。
在其中一种实施方式中，还包括温度补偿单元，温度补偿单元被置于麻醉蒸发器芯子的芯座的中心，温度补偿单元由温度敏感材料制成。
本发明的芯子管道被制成方形中空管道，在有限的尺寸下最大化麻醉蒸汽的输送空间，能够使得麻醉蒸汽在毛细吸力的作用下较快较多的通过芯子管道送出，从而为提供高浓度的麻醉蒸汽。
【附图说明】
图1为一种蒸发器的结构示意图；
图2为一种蒸发器的气路原理图；
图3为本发明实施例的麻醉蒸发器芯子的纵向剖面图；
图4为本发明实施例的麻醉蒸发器芯子的结构示意图；
图5为本发明实施例的麻醉蒸发器芯子的固定片的结构示意图；
图6为本发明实施例的麻醉蒸发器芯子的内层棉芯的结构示意图。
【具体实施方式】
为了使本发明的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本发明进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。
下面结合附图对本发明作进一步说明，如图1和图2所示，通常蒸发器包括新鲜气体入口1、压力补偿单元2、新鲜气体截止阀3、芯子4、旁路5、温度补偿单元6、浓度控制单元7、混合气体出口8和蒸发室10。压力补偿单元2用于进行压力补偿，其可以在混合气体出口8处于压力变化时防止气体逆流，及在新鲜气体入口1处于压力变化时稳定气体流速。蒸发室10是具有底壁的用于存储麻醉药液的容器。芯子4置于蒸发室10的内部，芯子4的一部分浸泡在麻醉药液中，使麻醉液可以在芯子4上蔓延，芯子4可促进蒸发室中的麻醉药液由液体蒸发成气态，其表面积越大，则蒸发效果好。
如图3和图4所示，芯子4包括芯座41和具方形中空结构的芯子管道45，芯子管道45安装在芯座41上。芯子管道45沿芯座41的周向螺旋状的盘旋固定在芯座41外侧，本实施例中，芯座41的横剖面为圆形。温度补偿单元6被置于芯座41的中心，芯座41还设有环形腔48，用于当新鲜气体进入芯子管道45时，携带麻醉蒸发汽体经芯座的环形腔48的通道（图未示）离开蒸发室。芯子管道45包括脊梁骨架和棉布，棉布将脊梁骨架包裹而形成芯子管道45，脊梁骨架起到支撑作用，使得芯子管道45不会因棉布塌陷而阻塞。为了使芯子管道45为方形中空结构，脊梁骨架采用方形弹簧，从而形成方形中空的芯子管道45，能够实现在较小空间下通道最大化，加大麻醉蒸汽的流通空间，能够较快的提供较多的高浓度的麻醉蒸汽。
芯子4可以被制成芯座41和芯子管道45一体的结构，例如将芯子管道45焊接固定在芯座41上。也可以芯子制成可拆卸安装的结构，如将芯子管道可拆卸的固定在芯座41上。具体可拆卸的固定可以采用固定销，在芯座41和芯子管道45上设有安装孔，通过固定销与安装孔的配合实现可拆卸的固定。也可以采用螺钉，在芯座41和芯子管道45上设有螺纹孔，通过螺钉与螺纹孔的配合，实现芯座41和芯子管道的可拆卸安装，当然，也可以采用其他可拆卸固定方式。
本发明的优选实施方式是，在芯子管道45的一端设有安装孔，与芯子管道45的安装孔相对应的芯座41上设有安装槽（图未示），固定销46穿过安装孔插入安装槽，将芯子管道45的一端固定在芯座41上，然后芯子管道45围绕芯座的圆周边缘螺旋状安装在芯座41上。芯子管道45的另一端用固定片47将芯子管道45固定在芯座41上。具体为，在芯子管道45的底部安装有固定片47，在芯座41上设有螺纹孔，通过螺钉将固定片47固定在芯座41上，从而将芯子管道45固定在芯座41上。
固定片47的结构如图5所示，固定片47为扁平的环状结构，固定片47的环上对称的有两个螺纹孔472，用于将固定片47固定在芯座41上。固定片47的外周还有向外凸出的耳部473和爪部474 ，耳部473为半圆状，用于当芯子管道45固定在芯座41上时，压住芯子管道45。爪部474为爪状结构，当芯子管道45被安装在芯座41上时，不仅能同时起到压住芯子管道45的作用，同时，还能够防止芯子管道45径向展开。
如图4 所示，当将芯子管道45固定在芯座41上时，还在芯子管道45外侧安装有外层棉芯43，内侧安装有内层棉芯44。外层棉芯43和内层棉芯44具有同样的结构，但尺寸不一样，能使外层棉芯43贴紧芯子管道45的外侧，内层棉芯44贴紧芯子管道45的内侧。内层棉芯44和外层棉芯43的结构如图4和图6所示，内、外层棉芯为圆柱状，在其它实施例中，内、外层棉芯也可以为其它截面形状的柱状体。内、外层棉芯的一端开设有缺口442而形成内层裙边441和外层裙边431，内、外层棉芯的缺口442的高度恰好等于芯子管道45的高度。缺口442的数量可根据需要设定，本实施例中的内、外层棉芯的缺口442有三个，因而内、外层棉芯分别有三个裙边。固定片47位于内层棉芯44的圆周内，固定片的爪部474和耳部473分别在内层棉芯的缺口442上压住芯子管道，防止芯子管道45径向展开。内层棉芯的内层裙边441和外层棉芯的外层裙边431依次错开，当芯子被置于蒸发室内时，内层棉芯的内层裙边441和外层棉芯的外层裙边431向下深入蒸发药液底部，由于芯子管道45和内、外层棉芯都是使用棉布制成，因此，即使在麻醉药液很少的情况下，麻醉药液也可以通过内层棉芯44和外层棉芯43的裙边向上蔓延。棉布的材料可以是聚乙烯、聚丙烯。聚四氟乙烯或其他纤维材料的混合集结体。在蒸发过程中，转化为高浓度的麻醉蒸汽，通过芯子管道45输出。
芯座41的固定销46安装槽附近还有供气流进入芯子管道的气孔（图未示），当芯子被置于蒸发室内时，新鲜气流经入气孔进入芯子管道45，由于麻醉药液通过内、外层棉芯的裙边被芯子吸收，在蒸发的作用下，液体变为汽体，芯子管道45内充满麻醉汽体。当新鲜气体进入芯子管道45后，气体在芯子管道45内流动，并携带大量的蒸发汽体从芯子管道45的末端流出，并经芯座41环形腔处48的通道（图未示）离开蒸发室，进入浓度控制单元。
本发明的麻醉蒸发器芯子由芯座和芯子管道组成，芯子管道通过固定销和固定片可拆卸的固定在芯座上，芯子管道由棉布包裹方形弹簧而成。芯子的加工成本低，加工简单且安装方便。
以上所述实施例仅表达了本发明的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对本发明专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干变形和改进，这些都属于本发明的保护范围。因此，本发明专利的保护范围应以所附权利要求为准。

Claims (10)

  1. 一种麻醉蒸发器芯子，其特征在于：包括芯座和芯子管道，所述芯子管道沿所述芯座的周向螺旋状固定在所述芯座外侧，所述芯子管道为方形中空管道。
  2. 如权利要求1所述的麻醉蒸发器芯子，其特征在于，所述芯子管道由棉布包裹方形脊梁骨架形成。
  3. 如权利要求2所述的麻醉蒸发器芯子，其特征在于，所述方形脊梁骨架为方形截面的弹簧。
  4. 如权利要求2所述的麻醉蒸发器芯子，其特征在于，所述芯子管道的一端设有安装孔，与芯子管道安装孔相对应的芯座上设有安装槽，固定销穿过所述安装孔插入所述安装槽将所述芯子管道固定在所述芯座上。
  5. 如权利要求4所示的麻醉蒸发器芯子，其特征在于，所述芯子管道的另一端用固定片将芯子管道固定在芯座上，所述固定片为环状结构，所述固定片的环的外周还有向外突出的耳部，所述耳部为半圆状，所述固定片的环的外周还有向外突出的爪部，所述爪部为爪状结构。
  6. 如权利要求1至5中任一项所述的麻醉蒸发器芯子，其特征在于，所述芯子管道的外侧和内侧分别安装有外层棉芯和内层棉芯，所述内、外层棉芯为柱状，所述内、外层棉芯的一端开设有缺口而形成裙边。
  7. 如权利要求6所述的麻醉蒸发器芯子，其特征在于，所述内、外层棉芯的裙边依次错开。
  8. 如权利要求7所述的麻醉蒸发器芯子，其特征在于，所述内、外层棉芯和棉布为聚乙烯、聚丙烯、聚四氟乙烯或其他纤维材料的混合集结体，所述芯子由细金属丝或纤维结构集合体构成。
  9. 一种麻醉蒸发器，其特征在于，包括蒸发室和如权利要求6至8任一项所述的麻醉蒸发器芯子，所述麻醉蒸发器芯子的内层棉芯的裙边和外层棉芯的裙边伸入所述蒸发室。
  10. 如权利要求9所述的麻醉蒸发器，其特征在于，还包括温度补偿单元，所述温度补偿单元被置于所述麻醉蒸发器芯子的芯座的中心，所述温度补偿单元由温度敏感材料制成。
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