JPH0725957Y2 - Endotracheal tube - Google Patents
Endotracheal tubeInfo
- Publication number
- JPH0725957Y2 JPH0725957Y2 JP2155192U JP2155192U JPH0725957Y2 JP H0725957 Y2 JPH0725957 Y2 JP H0725957Y2 JP 2155192 U JP2155192 U JP 2155192U JP 2155192 U JP2155192 U JP 2155192U JP H0725957 Y2 JPH0725957 Y2 JP H0725957Y2
- Authority
- JP
- Japan
- Prior art keywords
- tube
- tube body
- endotracheal tube
- cross
- recess
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 210000000867 larynx Anatomy 0.000 claims description 7
- 238000003745 diagnosis Methods 0.000 claims description 6
- 230000003902 lesion Effects 0.000 claims description 6
- 239000007789 gas Substances 0.000 description 8
- 210000001260 vocal cord Anatomy 0.000 description 8
- 206010002091 Anaesthesia Diseases 0.000 description 6
- 230000037005 anaesthesia Effects 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 3
- 210000000214 mouth Anatomy 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 239000003994 anesthetic gas Substances 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 206010067204 Airway burns Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 210000004704 glottis Anatomy 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002406 microsurgery Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Description
【０００１】[0001]
【産業上の利用分野】この考案は、チューブ本体の先端
部にバルーンが設けられ、特に喉頭ならびにその周辺構
築の病巣診断や治療に有効な気管内チューブに関するも
のである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an endotracheal tube which is provided with a balloon at the tip of a tube body and which is particularly effective for diagnosing and treating lesions of the larynx and its surroundings.
【０００２】[0002]
【従来の技術】全身吸入気管内麻酔下で、レーザー光線
による喉頭微細手術を行なうとき、非常に狭い声門に気
管内チューブが入るため、これが手術の邪魔になるばか
りか、レーザー光線照射の狙いが少し狂うと、チューブ
壁を誤射して穿孔し、換気不能や気道熱傷を起し、患者
の死亡事故を招来するという危険があった。このような
危険を防止するために従来、図５に示すような気管内チ
ューブが提案された。この気管内チューブ51は所定の長
さからなり、チューブ本体52の先端部にはバルーン53が
設けられている。バルーン53の膨張により固定されたチ
ューブ本体52の外周には声帯イとの間で所定の間隙を形
成して環状の凹所56が形成されている。前記の間隙は声
帯イの周囲の視野の制限を緩和し、口腔から挿入するレ
ーザメスなどでの手術を行ない易くするために形成され
るものである。環状の凹所56の形成に際しては、チュー
ブ本体52を図６，７に示すような構造としている。すな
わち、チューブ本体52を分割して両分割端部56ａ，56ｂ
間を小径の連結管57の嵌合接着により連結し、該連結管
の外周を凹所56にしている。尚、凹所56の長さ方向の寸
法Ｌは、図５のように声帯イの厚みＬ´を例えば５mmと
推定して声帯イの上下に10mmずつの余裕をとって合計25
mm位となっている。2. Description of the Related Art When performing a laryngeal microsurgery with a laser beam under general inhalation endotracheal anesthesia, the endotracheal tube enters the extremely narrow glottis, which not only interferes with the operation, but also the aim of the laser beam irradiation is a little off. There was a risk of accidentally piercing the tube wall and causing ventilation failure and airway burns, resulting in death of the patient. In order to prevent such a danger, an endotracheal tube as shown in FIG. 5 has been conventionally proposed. The endotracheal tube 51 has a predetermined length, and a balloon 53 is provided at the tip of the tube body 52. An annular recess 56 is formed on the outer periphery of the tube main body 52 fixed by the expansion of the balloon 53 so as to form a predetermined gap with the vocal cord a. The gap is formed in order to ease the restriction of the visual field around the vocal cord a and to facilitate the operation with a laser knife or the like inserted through the oral cavity. When forming the annular recess 56, the tube body 52 has a structure as shown in FIGS. That is, the tube main body 52 is divided into two divided end portions 56a and 56b.
The connecting pipes 57 having a small diameter are connected to each other by fitting and bonding, and the outer periphery of the connecting pipe is formed as a recess 56. It should be noted that the dimension L in the lengthwise direction of the recess 56 is 25 in total, assuming that the thickness L'of the vocal cord a is, for example, 5 mm as shown in FIG.
It is about mm.
【０００３】[0003]
【考案が解決しようとする課題】ところで、前記従来の
気管内チューブ51の場合、連結管57により環状の凹所56
を形成するものであるため、チューブ本体52の内腔58の
断面積が連結管57のある部分で極端に小さくなり、この
例では２分の１未満となる。したがって、麻酔ガスの交
換効率が悪くなり、重篤な傷害を招来する危険があっ
た。また、連結管57で治療部位等の表面を傷つけないよ
うにするために該管の連結端部の外周面をテーパ状にし
たりしなければならない。さらに、チューブ本体52と連
結管57との連結部においてその接着が不完全な場合、該
不完全な部分より麻酔ガスが漏れるという危険がある
等、製作上の問題があった。By the way, in the case of the conventional endotracheal tube 51, the annular recess 56 is formed by the connecting pipe 57.
Therefore, the cross-sectional area of the inner cavity 58 of the tube main body 52 is extremely small at the portion where the connecting pipe 57 is present, and is less than half in this example. Therefore, the efficiency of exchanging the anesthetic gas is deteriorated, and there is a risk of causing serious injury. Further, in order to prevent the surface of the treatment site or the like from being damaged by the connecting tube 57, the outer peripheral surface of the connecting end portion of the tube must be tapered. Further, if the connection between the tube main body 52 and the connection pipe 57 is incompletely bonded, there is a manufacturing problem such as the risk that anesthesia gas may leak from the incomplete part.
【０００４】そこでこの考案は、前記のような従来の問
題点を解決し、麻酔ガスのガス交換効率がよく、喉頭な
らびにその周辺構築の病巣診断や治療がやり易く、しか
も麻酔ガス漏れが全くなくて製作も容易な気管内チュー
ブを提供することを目的とする。Therefore, the present invention solves the above-mentioned conventional problems, has a high gas exchange efficiency of anesthesia gas, facilitates diagnosis and treatment of lesions of the larynx and its surroundings, and has no anesthesia gas leakage. The purpose is to provide an endotracheal tube that is easy to manufacture.
【０００５】[0005]
【課題を解決するための手段】前記の目的を達成するた
め、この考案の気管内チューブは、前記のような気管内
チューブにおいて、バルーンより後端側のチューブ本体
の外周の一部を潰すことにより喉頭ならびにその周辺構
築の病巣診断や治療を行なう部位との間で所定の間隙を
形成可能な凹みを、該凹みのあるチューブ本体の内腔の
断面積が少なくとも凹みのないチューブ本体の内腔の断
面積の２分の１以上を有するように前記部位の上下に所
定長さにわたり一体に形成している。In order to achieve the above object, the endotracheal tube of the present invention is such that, in the endotracheal tube as described above, a part of the outer circumference of the tube body at the rear end side of the balloon is crushed. A dent that allows a predetermined gap to be formed between the larynx and the site where the lesion of the larynx and surrounding structures is to be diagnosed or treated. Is integrally formed over a predetermined length above and below the portion so as to have a half or more of the cross sectional area.
【０００６】[0006]
【作用】前記のような構成の気管内チューブによれば、
喉頭ならびにその周辺構築の病巣診断や治療においてチ
ューブ本体の外周の一部に設けた凹みで該診断や治療部
位との間で所定の間隙を形成することが可能となり、し
たがって口腔からレーザメスなどを挿入する際、前記診
断や治療部位の視野が緩和される。According to the endotracheal tube having the above-mentioned structure,
In the diagnosis and treatment of lesions of the larynx and its surroundings, it is possible to form a predetermined gap between the diagnosis and treatment site with a recess provided in part of the outer circumference of the tube body, and therefore insert a laser knife or the like from the oral cavity. In doing so, the field of view of the diagnosis or treatment site is alleviated.
【０００７】[0007]
【実施例】図１はこの考案の一実施例を示す気管内チュ
ーブの正面図、図２は図１のＸ部の拡大断面図、図３は
図２のＡ−Ａ線に沿う拡大断面図である。１はシリコー
ンゴム等の弾性材料からなる所定長さの気管内チューブ
で、チューブ本体２の先端部にはバルーン３が設けられ
ている。バルーン３より後端側のチューブ本体２の外周
の一部には該部を潰すことにより診断や治療部位として
の声帯イとの間で所定の間隙を形成可能な凹み５が、従
来の凹所56と同様な寸法Ｌで一体に形成されている。こ
の凹み５のあるチューブ本体２の断面は図３のようにか
まぼこ型になっている。1 is a front view of an endotracheal tube showing an embodiment of the present invention, FIG. 2 is an enlarged sectional view of an X portion of FIG. 1, and FIG. 3 is an enlarged sectional view taken along line AA of FIG. Is. Reference numeral 1 is an endotracheal tube made of an elastic material such as silicone rubber and having a predetermined length, and a balloon 3 is provided at the tip of a tube body 2. On the part of the outer circumference of the tube main body 2 on the rear end side of the balloon 3, a dent 5 capable of forming a predetermined gap with a vocal cord a as a site for diagnosis or treatment by crushing the portion is provided as a conventional recess. It is integrally formed with a dimension L similar to 56. The cross section of the tube body 2 having the recess 5 is a semi-cylindrical shape as shown in FIG.
【０００８】この凹み５のあるチューブ本体２の内腔８
の断面積は図３に示すように、凹み５のないチューブ本
体２の内腔８の断面積よりやや小さい程度、すなわち、
凹み５のないチューブ本体２の内腔８の断面積の少なく
とも２分の１以上、好ましくはこの例のように４分の３
以上を有するようになっている。したがって、この凹み
５のあるチューブ本体２の内腔８の断面積Ｓを従来のそ
れＳ´と比較すると、図４のようになり、凹み５のある
チューブ本体２の内腔８の断面積Ｓは従来のそれＳ´よ
り相当大きなものとなる。The lumen 8 of the tube body 2 having the recess 5
As shown in FIG. 3, the cross-sectional area of the tube is slightly smaller than the cross-sectional area of the lumen 8 of the tube body 2 without the recess 5, that is,
At least one-half or more of the cross-sectional area of the lumen 8 of the tube body 2 without the recess 5, preferably three-quarters as in this example
To have the above. Therefore, when the cross-sectional area S of the lumen 8 of the tube body 2 having the recess 5 is compared with that of the conventional one S ', the result is as shown in FIG. 4, and the cross-sectional area S of the lumen 8 of the tube body 2 having the recess 5 is obtained. Is considerably larger than the conventional S ′.
【０００９】図１で10，11はチューブ本体２の外周に設
けたリングマーク、12は目盛、13は一方弁である。In FIG. 1, 10 and 11 are ring marks provided on the outer circumference of the tube body 2, 12 is a scale, and 13 is a one-way valve.
【００１０】この気管内チューブ１は前記のような構成
からなるので、例えば声帯イの治療において、チューブ
本体２の外周の一部に設けた凹み５を声帯イの治療部位
に位置させた上、バルーン３を膨らませて従来と同様に
気管内チューブ１を気管内腔に固定する。これにより凹
み５と声帯イとの間で所定の間隙が形成され、声帯イの
周囲の視野が緩和される。そのため、口腔からレーザメ
スなどを挿入する際、視野が制限されることがなく、手
術を容易に行なうことが可能となる。Since the endotracheal tube 1 has the above-mentioned structure, for example, in the treatment of vocal cord a, the recess 5 provided in a part of the outer circumference of the tube body 2 is positioned at the treatment site of the vocal cord a. The balloon 3 is inflated and the endotracheal tube 1 is fixed to the endotracheal cavity as in the conventional case. As a result, a predetermined gap is formed between the recess 5 and the vocal cord a, and the visual field around the vocal cord a is relaxed. Therefore, when inserting a laser knife or the like through the oral cavity, the field of view is not limited, and the operation can be easily performed.
【００１１】また、前記のチューブ１においては、凹み
５のあるチューブ本体２の内腔８の断面積Ｓが従来のそ
れＳ´より相当大きいものとなるから、麻酔ガスの交換
においても従来のように効率が悪くなることがなく、効
率的なガスの交換を行なうことが可能となる。Further, in the tube 1 described above, since the cross-sectional area S of the inner cavity 8 of the tube body 2 having the recess 5 is considerably larger than that of the conventional one S ', it is the same as in the conventional case when exchanging anesthesia gas. It is possible to efficiently exchange the gas without deteriorating the efficiency.
【００１２】前記実施例における凹み５は、例えばシリ
コーンの熱処理成型工程時に外側から加圧手段で加圧す
ることにより形成することができるが、このような加圧
による形成だけでなくほかに任意の手段、方法でも形成
することができる。また、凹み５の断面形状は一例であ
って、必ずしもかまぼこ型でなくともよいとともに、凹
み５の外周における位置も任意である等、この考案は要
旨を変更しない範囲でその設計を適宜に変更することが
できる。The depression 5 in the above-mentioned embodiment can be formed, for example, by applying pressure from the outside with a pressing means during the heat treatment molding step of silicone, but it is not limited to such pressing and any other means can be used. Can also be formed by a method. Further, the cross-sectional shape of the recess 5 is an example, and it is not always necessary to have a semi-cylindrical shape, and the position on the outer periphery of the recess 5 is also arbitrary. be able to.
【００１３】[0013]
【考案の効果】この考案は前記のような構成からなって
いるので、麻酔ガスのガス交換効率の向上を図ることが
でき、喉頭ならびにその周辺構築の病巣診断や治療を容
易に行なうことができる。また、従来のような連結管を
用いる構成でないので、麻酔ガスが漏れる危険が全くな
いとともに、製作も容易となる等の優れた効果がある。Since the present invention is constructed as described above, it is possible to improve the gas exchange efficiency of anesthesia gas, and easily diagnose and treat the lesion of the larynx and its surrounding structure. . Further, since there is no structure using a connecting pipe as in the conventional case, there is no danger of leaking anesthetic gas, and there are excellent effects such as easy manufacture.
【図１】この考案の一実施例を示す気管内チューブの正
面図である。FIG. 1 is a front view of an endotracheal tube showing an embodiment of the present invention.
【図２】図１のＸ部の拡大断面図である。FIG. 2 is an enlarged cross-sectional view of a portion X in FIG.
【図３】図２のＡ−Ａ線に沿う拡大断面図である。FIG. 3 is an enlarged cross-sectional view taken along the line AA of FIG.
【図４】この考案の実施例の気管内チューブの内腔の断
面積と従来の気管内チューブの内腔の断面積とを比較し
た図面である。FIG. 4 is a drawing comparing the cross-sectional area of the lumen of the endotracheal tube of the embodiment of the present invention with the cross-sectional area of the lumen of the conventional endotracheal tube.
【図５】従来の気管内チューブを用いた術例を示す図面
である。FIG. 5 is a drawing showing an example of surgery using a conventional endotracheal tube.
【図６】従来の気管内チューブの図２と対応する拡大断
面図である。FIG. 6 is an enlarged sectional view of a conventional endotracheal tube corresponding to FIG.
【図７】図６のＢ−Ｂ線に沿う拡大断面図である。7 is an enlarged sectional view taken along the line BB of FIG.
１ 気管内チューブ ２ チューブ本体 ３ バルーン ５ 凹み ８ 内腔 1 Endotracheal tube 2 Tube body 3 Balloon 5 Recessed 8 Lumen
Claims (1)
られた気管内チューブにおいて、バルーンより後端側の
チューブ本体の外周の一部を潰すことにより喉頭ならび
にその周辺構築の病巣診断や治療を行なう部位との間で
所定の間隙を形成可能な凹みを、該凹みのあるチューブ
本体の内腔の断面積が少なくとも凹みのないチューブ本
体の内腔の断面積の２分の１以上を有するように前記部
位の上下に所定長さにわたり一体に形成したことを特徴
とする気管内チューブ。1. In an endotracheal tube having a balloon provided at the tip of the tube body, by crushing a part of the outer circumference of the tube body on the rear end side of the balloon, diagnosis and treatment of lesions of the larynx and its surrounding structure are performed. A recess capable of forming a predetermined gap with the portion is provided such that the cross-sectional area of the hollow tube body lumen is at least ½ of the cross-sectional area of the hollow tube body lumen. An endotracheal tube which is integrally formed above and below the site over a predetermined length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2155192U JPH0725957Y2 (en) | 1992-04-08 | 1992-04-08 | Endotracheal tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2155192U JPH0725957Y2 (en) | 1992-04-08 | 1992-04-08 | Endotracheal tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0619744U JPH0619744U (en) | 1994-03-15 |
| JPH0725957Y2 true JPH0725957Y2 (en) | 1995-06-14 |
Family
ID=12058140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2155192U Expired - Lifetime JPH0725957Y2 (en) | 1992-04-08 | 1992-04-08 | Endotracheal tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0725957Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3721937B1 (en) * | 2009-10-02 | 2021-12-01 | Medtronic Xomed, Inc. | Endotracheal tube apparatus |
-
1992
- 1992-04-08 JP JP2155192U patent/JPH0725957Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0619744U (en) | 1994-03-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 19960213 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
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| EXPY | Cancellation because of completion of term |