JP3974750B2 - Gas-liquid rough mixing device for atomizer - Google Patents
Gas-liquid rough mixing device for atomizer Download PDFInfo
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- JP3974750B2 JP3974750B2 JP2000403042A JP2000403042A JP3974750B2 JP 3974750 B2 JP3974750 B2 JP 3974750B2 JP 2000403042 A JP2000403042 A JP 2000403042A JP 2000403042 A JP2000403042 A JP 2000403042A JP 3974750 B2 JP3974750 B2 JP 3974750B2
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- liquid
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Description
【０００１】
【発明の属する技術分野】
本発明は気管支鏡検査の気管内の麻酔薬の投与に使用される噴霧器用気液粗混合装置に係り、可撓性を有する細長い抵抗の大きな管を接続しても、安定した気液粗混合を供給する能力を有する、小型の、噴霧器用気液粗混合装置を得ることに関する。
【０００２】
【従来の技術】
従来から様々なところで液体を噴霧して用いる事は行われてきており、それにより様々な問題を解決してきた。例えば、局所麻酔下の気管支鏡検査の際の気管支鏡挿入後のリドカイン（局所麻酔薬液）の追加は、その方法によっては咳漱を誘発したり、麻酔も不均等になるおそれがあった。この欠点の解消のためには、気管支鏡の細い鉗子孔に噴霧用の可撓性細管（外径１ｍｍ、長さ約１００ｃｍ）を挿入し、気管支鏡先端から随時にリドカイン液を「霧状」に投与することが望ましい。これについて六田らは気管支学第１８巻第２号（１９９６年３月）にＪａｃｋｓｏｎ型噴霧器を気液粗混合器として改造、利用し、これにカテーテル（テフロンチューブ外径１ｍｍ、長さ１１０ｃｍ、先端に小孔を有す）を接続した噴霧器を提案、その製造方法を開示している。この手法は医療方法として極めて有効であった。しかし、Ｊａｃ−ｋｓｏｎ型噴霧器は構造が複雑で、高価で、可撓性の細管を接続するための接続部の加工も容易でない等の問題があった。
【０００３】
【発明が解決しようとする課題】
従って、本発明の目的は、極めて簡単な構造により、気液粗混合をつくり、この本体に、用途に応じて接続する細く、長い、抵抗の大きな、可撓性のある管の場合にも、送気圧力を増強することで気液粗混合を供給できるところの小型、高性能な気管支鏡検査の気管内の麻酔薬の投与に使用される噴霧器用気液粗混合装置を提供することにある。
【０００４】
【課題を解決するための手段】
本発明者は、前記課題を達成するために鋭意検討した結果、送気圧力管（２）が挿入され、その先端が液タンク（１）の気相部（４ａ）にある、一定圧の加圧保持可能な液タンク（１）において、１本の細管（３）を（１）の底部から上方に向け挿入する。（３）の細管上端（３ａ）は、（１）上部の気相部（４ａ）に開通しており、液相（４ｂ）最深部の（３）には細管小側孔（３ｂ）を設けておき、細管（３）のタンク外にある細管下端（３ｃ）から気液粗混合を噴出させる構造の、気管支鏡検査の気管内の麻酔薬の投与に使用される噴霧器用気液粗混合装置。但し、この噴霧器用気液粗混合装置において、細管（３）の内径＞小側孔（３ｂ）の直径、且つ、０．３ｍｍ≦細管（３）の内径≦２．０ｍｍ、且つ、０．１ｍｍ≦小側孔（３ｂ）の直径≦０．７ｍｍとする。このような構造体にすることで、用途に応じて細管下端（３ｃ）に、細く、長く、抵抗が大きな管を接続した場合にも、送気圧力管（２）の圧を上げて対応でき、ほぼ安定した気液粗混合を供給することが出来る。ここで細管（３）の内径、小側孔（３ｂ）の直径が上記範囲より外れる場合は、細管下端（３ｃ）に接続する細管先端から霧が出ない、あるいは霧状にならず液滴状あるいは線状となってしまう不具合が生じる。また、本発明の実施にあたり、その材質は用途に応じたものとし、特に限定されない。
【０００５】
【実施例】
以下に、実施例に基づいて本発明をより詳細に説明するが、本発明はこれらの実施例によって限定されるものではない。
気管支鏡検査への本器実施使用例
図１は、気管支鏡検査に使用するため、この発明の原理の下に試作した噴霧器用気液粗混合装置である。液タンク（１）の頂部気相部（４ａ）に送気圧力管（２）が挿入され、今１本の細管（３）は液タンク（１）の底部から上方に向け挿入され、細管上端（３ａ）は液タンク（１）の気相部（４ａ）に開通し、液相（４ｂ）最深部の（３）には細管小側孔（３ｂ）を設けておき、タンク外にある細管（３）の細管下端（３ｃ）から気液粗混合を噴出させる構造となっている。この細管下端（３ｃ）に付加部品として可撓性細管（外径１ｍｍ、内径０．５ｍｍ、長さ約１１０ｃｍ、その先端は小孔となっている）を接続すると、気管支鏡検査用の噴霧器となりその先端小孔（直径０．２ｍｍ）から霧を成す。可撓性細管の抵抗が大きいため、送気圧力管（２）から、４〜５気圧の空気あるいは酸素を送気する。可撓性細管を気管支鏡の鉗子孔（気管支鏡下に処置をするために、気管支鏡本体約７０ｃｍに設けられている直径２．５ｍｍの細管）に挿入し、気管支鏡先端から１〜２ｃｍ出し、モニターで観察しながら喉頭、気管、気管支に麻酔薬キシロカイン液を噴霧する。
【０００６】
【発明の効果】
本発明による噴霧器用気液粗混合装置は、極めて簡単で小型な構造でありながら、良好な気液粗混合を容易に得る事ができ、用途に応じて本器の先端に、細長い可撓性のある抵抗の大きな管を連結しても機能する。医療現場での気管支鏡検査用の麻酔液噴霧等に極めて有効である。
【０００７】
【図面の簡単な説明】
【図１】本発明の断面図である。
【符号の説明】
１：液タンク
２：送気圧力管
３：細管
３ａ：細管上端
３ｂ：細管小側孔
３ｃ：細管下端
４ａ：気相部
４ｂ：液相部[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a gas-liquid coarse mixing device for a nebulizer used for administration of anesthetics in the trachea of bronchoscopy , and stable gas-liquid rough mixing even when a flexible long thin resistance tube is connected. It is related with obtaining the gas-liquid rough mixing apparatus for atomizers which has the capability to supply.
[0002]
[Prior art]
Conventionally, spraying and using a liquid in various places has been performed, thereby solving various problems. For example, addition of lidocaine (local anesthetic liquid) after bronchoscope insertion during bronchoscopy under local anesthesia may induce coughing or anesthesia may be uneven depending on the method. To eliminate this drawback, a flexible tubule for spraying (outer diameter: 1 mm, length: about 100 cm) is inserted into the thin forceps hole of the bronchoscope, and lidocaine solution is “misted” from the bronchoscope tip as needed. It is desirable to administer. About this, Rokuta et al. Modified and used the Jackson type nebulizer as a gas-liquid coarse mixer in Bronchology Vol. 18 No. 2 (March 1996), and used a catheter (Teflon tube outer diameter 1 mm, length 110 cm, tip A sprayer having a small hole) is proposed and its manufacturing method is disclosed. This technique was extremely effective as a medical method. However, the Jac-kson atomizer has a complicated structure, is expensive, and has a problem that it is not easy to process a connecting portion for connecting a flexible thin tube.
[0003]
[Problems to be solved by the invention]
Therefore, the object of the present invention is to create a gas-liquid rough mixing with a very simple structure, and to connect this body according to the application, even in the case of a thin, long, highly resistant, flexible tube, It is to provide a gas-liquid rough mixing device for a nebulizer used for administration of an anesthetic agent in a trachea of a small and high-performance bronchoscopy where a gas-liquid rough mixing can be supplied by increasing an air supply pressure. .
[0004]
[Means for Solving the Problems]
As a result of intensive studies to achieve the above-mentioned problems, the present inventor has applied a constant pressure, in which an air supply pressure pipe (2) is inserted and its tip is in the gas phase part (4a) of the liquid tank (1). In the liquid tank (1) capable of holding pressure, one thin tube (3) is inserted upward from the bottom of (1). The upper end (3a) of the narrow tube (3) is opened to (1) the upper gas phase portion (4a), and the liquid phase (4b) is provided with a small tube small side hole (3b) in the deepest portion (3). A gas-liquid rough mixing device for a nebulizer used to administer an anesthetic in the trachea of bronchoscopy having a structure in which gas-liquid rough mixing is ejected from the lower end (3c) outside the tank of the thin tube (3) . However, in this gas-liquid coarse mixing apparatus for a sprayer, the inner diameter of the narrow tube (3)> the diameter of the small side hole (3b), and 0.3 mm ≦ the inner diameter of the narrow tube (3) ≦ 2.0 mm and 0.1 mm the diameter ≦ 0.7 mm of ≦ small side hole (3b). By adopting such a structure, even when a thin, long, high resistance tube is connected to the lower end (3c) of the thin tube according to the application, the pressure of the air supply pressure tube (2) can be raised to cope with it. , Almost stable gas-liquid rough mixing can be supplied. Here, when the inner diameter of the narrow tube (3) and the diameter of the small side hole (3b) are out of the above ranges, no mist is generated from the tip of the thin tube connected to the lower end (3c) of the thin tube, or it is not in the form of mist but in the form of droplet Or the malfunction which becomes a linear form arises. In implementing the present invention, the material is determined according to the application and is not particularly limited.
[0005]
【Example】
Hereinafter, the present invention will be described in more detail based on examples, but the present invention is not limited to these examples.
Example of use of this device for bronchoscopy FIG. 1 shows a gas-liquid rough mixing device for a nebulizer, which was prototyped under the principle of the present invention for use in bronchoscopy. An air supply pressure pipe (2) is inserted into the top gas phase section (4a) of the liquid tank (1), and now one narrow pipe (3) is inserted upward from the bottom of the liquid tank (1), and the upper end of the narrow pipe (3a) is opened to the gas phase part (4a) of the liquid tank (1), the liquid phase (4b) is provided with a small side hole (3b) in the deepest part (3), and the narrow pipe outside the tank. The gas-liquid rough mixing is ejected from the lower end (3c) of the narrow tube (3). When a flexible thin tube (outer diameter 1 mm, inner diameter 0.5 mm, length about 110 cm, tip is a small hole) is connected to the lower end (3c) of this thin tube , it becomes a nebulizer for bronchoscopy. Mist is formed from the tip small hole (diameter 0.2 mm). Since the resistance of the flexible thin tube is large, 4 to 5 atmospheres of air or oxygen is supplied from the air supply pressure tube (2). Insert the flexible tubule into the forceps hole of the bronchoscope (a thin tube with a diameter of 2.5 mm provided in the bronchoscope body approximately 70 cm for treatment under the bronchoscope), and place 1-2 cm from the tip of the bronchoscope. Spray the anesthetic drug xylocaine on the larynx, trachea and bronchi while observing on the monitor.
[0006]
【The invention's effect】
The gas-liquid rough mixing device for a sprayer according to the present invention has an extremely simple and small structure, and can easily obtain good gas-liquid rough mixing. It works even if a large resistance tube is connected. It is extremely effective for spraying anesthetic liquids for bronchoscopy at medical sites.
[0007]
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of the present invention.
[Explanation of symbols]
1: Liquid tank 2: Air supply pressure tube 3: Narrow tube 3a: Narrow tube upper end 3b: Narrow tube small side hole 3c: Narrow tube lower end 4a: Gas phase portion 4b: Liquid phase portion
Claims (1)
但し、この噴霧器用気液粗混合装置において、細管（３）の内径＞小側孔（３ｂ）の直径、且つ、０．３ｍｍ≦細管（３）の内径≦２．０ｍｍ、且つ、０．１ｍｍ≦小側孔（３ｂ）の直径≦０．７ｍｍ とする。 Its tip is inserted air pressure tube (2) is in the gas phase of the liquid tank (1) (4a), provided with a pressure capable of holding liquid tank constant pressure (1), one tubule (3) Is inserted upward from the bottom of the liquid tank (1), and the upper end (3a) of the thin tube (3 ) is opened to the gas phase part (4a) above the liquid tank (1). 4b) the tubules (3) of the deepest portion may be provided tubules small side hole (3b), made so as to eject the liquid crude mixture from capillary lower end of the narrow tube (3) which is outside the liquid tank (3c) A gas-liquid coarse mixing device for nebulizers used to administer anesthetics in the trachea for bronchoscopy .
However, in this gas-liquid coarse mixing apparatus for a sprayer, the inner diameter of the narrow tube (3)> the diameter of the small side hole (3b), and 0.3 mm ≦ the inner diameter of the narrow tube (3) ≦ 2.0 mm and 0.1 mm ≦ Diameter of small side hole (3b) ≦ 0.7 mm
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000403042A JP3974750B2 (en) | 2000-11-24 | 2000-11-24 | Gas-liquid rough mixing device for atomizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000403042A JP3974750B2 (en) | 2000-11-24 | 2000-11-24 | Gas-liquid rough mixing device for atomizer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2002159890A JP2002159890A (en) | 2002-06-04 |
| JP3974750B2 true JP3974750B2 (en) | 2007-09-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000403042A Expired - Fee Related JP3974750B2 (en) | 2000-11-24 | 2000-11-24 | Gas-liquid rough mixing device for atomizer |
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| Country | Link |
|---|---|
| JP (1) | JP3974750B2 (en) |
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- 2000-11-24 JP JP2000403042A patent/JP3974750B2/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| JP2002159890A (en) | 2002-06-04 |
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