JP2745237B2 - Nasal cannula - Google Patents
Nasal cannulaInfo
- Publication number
- JP2745237B2 JP2745237B2 JP1260578A JP26057889A JP2745237B2 JP 2745237 B2 JP2745237 B2 JP 2745237B2 JP 1260578 A JP1260578 A JP 1260578A JP 26057889 A JP26057889 A JP 26057889A JP 2745237 B2 JP2745237 B2 JP 2745237B2
- Authority
- JP
- Japan
- Prior art keywords
- nostril
- oxygen gas
- gas supply
- supply passage
- diameter
- 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 - Fee Related
Links
Landscapes
- Respiratory Apparatuses And Protective Means (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Description
【発明の詳細な説明】 ［産業上の利用分野］ 本発明は、事故や急性の疾病等により呼吸困難に陥っ
た患者に、緊急に酸素ガスを供給する時に使用される鼻
カニューレの改良に関するものである。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a nasal cannula used when urgently supplying oxygen gas to a patient who has difficulty breathing due to an accident or an acute illness. It is.
［従来技術及び発明が解決しようとする課題］ 第５図及び第６図は、現在使用されている鼻カニュー
レ21、31の概略図である。第５図の鼻カニューレ21は、
鼻孔挿入部23と患者の鼻下部に装着される本体22から構
成され、鼻孔挿入部23と本体22の内部は、酸素ガス供給
部24、25が連通して形成されている。しかしながら、鼻
孔挿入部23はストレートに形成されているので、患者に
装着固定して酸素ガスを供給する際に、患者が動くと、
はずれやすく、また固定が不完全なため、患者が動くた
びに、鼻孔挿入部23が鼻孔内壁29を傷つけかぶれ等が生
じ患者に不快感を与えていた。[Problems to be Solved by the Prior Art and the Invention] FIGS. 5 and 6 are schematic views of nasal cannulas 21 and 31 currently used. The nasal cannula 21 in FIG.
It is composed of a nostril insertion part 23 and a main body 22 mounted on the lower part of the nose of the patient. Inside the nostril insertion part 23 and the main body 22, oxygen gas supply parts 24 and 25 are formed so as to communicate with each other. However, since the nostril insertion portion 23 is formed straight, when the patient moves while attaching and fixing the oxygen gas to the patient,
Since it is easily detached and the fixation is incomplete, each time the patient moves, the nostril insertion portion 23 damages the nostril inner wall 29, causing rash or the like, and giving the patient discomfort.
また患者の鼻孔の大きさには、個人差があるので、固
定が容易ではなかった。In addition, the size of the patient's nostril varies from person to person, so it has not been easy to fix it.
また第６図の鼻カニューレ31は、鼻孔挿入部33の先端
に拡大部36が形成されているが、患者の鼻に装着した時
に、該拡大部36が鼻の中央（軟骨40が存在し、異物が接
触すると苦痛を伴う）に接触するため患者に苦痛を与え
ていた。また、鼻カニューレ31は、鼻孔挿入部33を、本
体32に装着して形成するので、組み立てが面倒であっ
た。In addition, the nasal cannula 31 of FIG. 6 has an enlarged portion 36 formed at the tip of the nostril insertion portion 33. When the enlarged portion 36 is attached to the patient's nose, the enlarged portion 36 is located at the center of the nose (the cartilage 40 exists, (It is painful when a foreign body comes in contact with it.) Further, since the nasal cannula 31 is formed by mounting the nostril insertion portion 33 on the main body 32, assembly is troublesome.
また、鼻孔の形状にも個人差があり、これを寸法であ
らわすと第７図のようになり、特に鼻孔中心のピッチL3
（通常、15〜25mm）は、各個人により大差があるのにた
いして、鼻孔の支柱の幅L5（通常、6.5±1.0mm）とその
先端部の幅L4（通常、7.5±1.0mm）については、あまり
差はみられない。そこで鼻カニューレの鼻孔挿入部のピ
ッチL2を鼻孔中心のピッチL3にあわせて造ると、すべて
の患者にあわせるには、各個人の寸法にあわせて各個人
毎に造る必要があった。In addition, there are individual differences in the shape of the nostril, and when this is expressed in dimensions, it becomes as shown in FIG.
(Normally, 15-25mm), although there is a great difference between individuals, the width L5 of the nostril support (normally 6.5 ± 1.0mm) and the width L4 of the tip (normally 7.5 ± 1.0mm) There is not much difference. Therefore, if the pitch L2 of the nostril insertion portion of the nasal cannula is made to match the pitch L3 at the center of the nostril, it must be made individually for each patient in order to fit all patients.
そこで本発明者は、以上の課題を解決するために鋭意
検討を重ねた結果、次の発明に到達した。The inventor of the present invention has made intensive studies in order to solve the above-mentioned problems, and as a result, has arrived at the following invention.
［課題を解決するための手段］ 第１の発明として 内部に酸素ガスの供給路５を形成した管状の本体２
と、内部に前記酸素ガスの供給路５と連通する酸素ガス
の供給路４を形成した管状の鼻孔挿入部３とから構成さ
れ、前記本体２の中央部の両側に前記鼻孔挿入部３を二
本、略垂直に突設し、前記鼻孔挿入部３の中腹部に膨出
部６を形成し、前記鼻孔挿入部３の先端７の径d1と膨出
部６の径Ｄと鼻孔挿入部３の基端８の径d2の大きさをＤ
＞d2＞d1となるように形成した鼻カニューレ１を提供す
る。Means for Solving the Problems As a first invention, a tubular main body 2 in which an oxygen gas supply passage 5 is formed.
And a tubular nostril insertion portion 3 in which an oxygen gas supply passage 4 communicating with the oxygen gas supply passage 5 is formed, and the nostril insertion portions 3 are provided on both sides of a center portion of the main body 2. The nostril insertion portion 3 is formed so as to protrude substantially vertically, and a bulge 6 is formed in the middle abdomen of the nostril insertion portion 3. The size of the diameter d2 of the base end 8 of D
The nasal cannula 1 formed so that>d2> d1 is provided.
第２の発明として 内部に酸素ガスの供給路５を形成した管状の本体２
と、内部に前記酸素ガスの供給路５と連通する酸素ガス
の供給路４を形成した管状の鼻孔挿入部3aとから構成さ
れ、前記本体２の中央部の両側に前記鼻孔挿入部3aを二
本、略垂直に突設し、前記鼻孔挿入部3aの中腹部にＯリ
ング11を装着し、前記鼻孔挿入部3aの先端７の径d1とＯ
リング11の径Ｄと鼻孔挿入部3aの基端８の径d2の大きさ
をＤ＞d2＞d1となるように形成した鼻カニューレ1aを提
供する。As a second invention, a tubular main body 2 in which an oxygen gas supply passage 5 is formed.
And a tubular nostril insertion portion 3a in which an oxygen gas supply passage 4 communicating with the oxygen gas supply passage 5 is formed, and the nostril insertion portions 3a are provided on both sides of a center portion of the main body 2. The nostril insertion portion 3a is provided with an O-ring 11 attached to the middle of the nostril insertion portion 3a.
A nasal cannula 1a is provided in which the diameter D of the ring 11 and the diameter d2 of the proximal end 8 of the nostril insertion portion 3a are such that D>d2> d1.
第３の発明として 内部に酸素ガスの供給路５を形成した管状の本体２
と、内部に前記酸素ガスの供給路５と連通する酸素ガス
の供給路４を形成した管状の鼻孔挿入部3bとから構成さ
れ、前記本体２の中央部の両側に前記鼻孔挿入部3bを二
本、略垂直に突設し、前記鼻孔挿入部3bの中腹部に膨出
部６を形成し、前記鼻孔挿入部3bの先端7bの径d1と膨出
部６の径Ｄと鼻孔挿入部3bの基端８の径d2の大きさをＤ
＞d2＞d1となるように形成し、鼻孔挿入部3bの先端7bに
孔12を形成した鼻カニューレ1bを提供する。As a third invention, a tubular main body 2 in which an oxygen gas supply passage 5 is formed.
And a tubular nostril insertion portion 3b in which an oxygen gas supply passage 4 communicating with the oxygen gas supply passage 5 is formed, and the nostril insertion portions 3b are provided on both sides of a center portion of the main body 2. The projecting portion is provided substantially vertically, and a bulging portion 6 is formed in the middle of the nostril inserting portion 3b. The diameter d1 of the tip 7b of the nostril inserting portion 3b, the diameter D of the bulging portion 6, and the nostril inserting portion 3b The size of the diameter d2 of the base end 8 of D
The nasal cannula 1b is formed so that>d2> d1 and has a hole 12 formed at the tip 7b of the nostril insertion portion 3b.
［実施例］ 第１図は、本発明の鼻カニューレ１の概略図、第２図
は、第１図の側面図を示す。鼻カニューレ１は、軟質又
は半硬質の合成樹脂よりなり、内部に酸素ガスの供給路
５を形成した管状の本体２と該本体２の中央部の両側に
二本、略垂直（正確に90°でなくても、鼻孔に挿入でき
る角度であれば若干の誤差は許容できる意味である）に
一体に突出して形成あるいは装着して突設される管状の
鼻孔挿入部３より構成されている。FIG. 1 is a schematic view of a nasal cannula 1 of the present invention, and FIG. 2 is a side view of FIG. The nasal cannula 1 is made of a soft or semi-rigid synthetic resin, and has a tubular main body 2 in which an oxygen gas supply path 5 is formed, and two, substantially vertical (exactly 90 °) on both sides of the center of the main body 2. However, if the angle can be inserted into the nostril, a slight error can be tolerated).
鼻孔挿入部３の内部には前記酸素ガスの供給路５と連
通した酸素ガスの供給路４が形成され、鼻孔挿入部３の
中腹部には、球状の膨出部６が形成されている。An oxygen gas supply passage 4 communicating with the oxygen gas supply passage 5 is formed inside the nostril insertion portion 3, and a spherical bulging portion 6 is formed in a middle part of the nostril insertion portion 3.
また、鼻孔挿入部３の先端７は、細径にして、鼻孔内
壁９に、触れないように形成することが望ましい。鼻孔
挿入部３の先端７の径d1、膨出部６の径Ｄ、基端８の径
d2とすると、各々の径d1、Ｄ、d2の関係が、Ｄ＞d2＞d1
となるように形成するのが良い。Further, it is desirable that the tip 7 of the nostril insertion portion 3 has a small diameter and is formed so as not to touch the nostril inner wall 9. The diameter d1 of the distal end 7 of the nostril insertion portion 3, the diameter D of the bulging portion 6, and the diameter of the proximal end 8
Assuming that d2, the relationship between the diameters d1, D, and d2 is D>d2> d1.
It is good to form so that it becomes.
また、鼻カニューレ１の２本の鼻孔挿入部３の間は、
第７図の鼻孔の特徴からd1Lを（7.5±1.0mm）、DLを
（6.5±1.0mm）とするのが望ましい。Also, between the two nostril insertion portions 3 of the nasal cannula 1,
From the characteristics of the nostrils in FIG. 7, it is desirable to set d1L to (7.5 ± 1.0 mm) and DL to (6.5 ± 1.0 mm).
第３図から第４図は、本願発明のその他実施例を示す
一部拡大図である。FIG. 3 and FIG. 4 are partially enlarged views showing another embodiment of the present invention.
第３図の鼻カニューレ1aは「内部に酸素ガスの供給路
５を形成した管状の本体２と、内部に前記酸素ガスの供
給路５と連通する酸素ガスの供給路４を形成した管状の
鼻孔挿入部３とから構成され、前記本体２の中央部の両
側に前記鼻孔挿入部３を二本、略垂直に突設する」点は
前記鼻カニューレ１と同じであるが、前記鼻孔挿入部３
に代えて、鼻孔挿入部3aの中腹部に、溝10を形成し、こ
れにたとえばシリコーンゴム、軟質合成樹脂等からなる
Ｏリング11を装着したものである。このＯリング11が、
第１図の鼻カニューレ１の膨出部６と同様の作用を果た
すものである。The nasal cannula 1a in FIG. 3 is composed of a tubular main body 2 having an oxygen gas supply passage 5 formed therein and a tubular nostril having an oxygen gas supply passage 4 formed therein to communicate with the oxygen gas supply passage 5. The insertion point 3 is the same as that of the nasal cannula 1 except that the two nostril insertion sections 3 are provided on both sides of the center of the main body 2 so as to protrude substantially vertically.
Instead, a groove 10 is formed in the middle abdomen of the nostril insertion portion 3a, and an O-ring 11 made of, for example, silicone rubber, soft synthetic resin, or the like is attached to the groove 10. This O-ring 11
It functions similarly to the bulging portion 6 of the nasal cannula 1 in FIG.
第４図の鼻カニューレ1bは「内部に酸素ガスの供給路
５を形成した管状の本体２と、内部に前記酸素ガスの供
給路５と連通する酸素ガスの供給路４を形成した管状の
鼻孔挿入部３とから構成され、前記本体２の中央部の両
側に前記鼻孔挿入部３を二本、略垂直に突設する」点は
前記鼻カニューレ１と同じであるが前記鼻孔挿入部３に
代えて、鼻孔挿入部3bの先端7bに、孔12を形成して、酸
素ガスの拡散効率を向上させるようにしたものである。The nasal cannula 1b in FIG. 4 is composed of a tubular main body 2 having an oxygen gas supply passage 5 formed therein and a tubular nostril having an oxygen gas supply passage 4 formed therein to communicate with the oxygen gas supply passage 5. The insertion point 3 is the same as that of the nasal cannula 1 except that the two nostril insertion parts 3 project substantially vertically on both sides of the center of the main body 2. Instead, a hole 12 is formed at the tip 7b of the nostril insertion portion 3b to improve the oxygen gas diffusion efficiency.
前記、径d1、Ｄ、d2の関係は、鼻カニューレ1a、1bに
も適用される。The relationship between the diameters d1, D, and d2 also applies to the nasal cannula 1a, 1b.
［発明の作用効果］ 以上説明したように、本願発明の鼻カニューレ１及び
鼻カニューレ1aでは鼻孔挿入部３（3a）の先端７（7a）
が鼻孔内壁９に接触することなく、膨出部６及びＯリン
グ11が鼻孔の先端を超えて鼻孔内壁に固定されるので、
患者の鼻孔内に安定して固定することができ、患者が動
いても、鼻孔内を傷つけることなく安心して使用でき
る。また鼻カニューレ1bでは前記効果とともに鼻孔に導
入する酸素ガスの拡散効率を向上させることができる。[Effects of the Invention] As described above, in the nasal cannula 1 and the nasal cannula 1a of the present invention, the tip 7 (7a) of the nostril insertion portion 3 (3a).
The bulge 6 and the O-ring 11 are fixed to the nostril inner wall beyond the tip of the nostril without contacting the nostril inner wall 9.
It can be stably fixed in a patient's nostril, and can be used safely without damaging the nostril even when the patient moves. In addition, the nasal cannula 1b can improve the diffusion efficiency of oxygen gas introduced into the nostrils together with the above-described effect.
第１図は本発明の鼻カニューレの概略図、第２図は第１
図の側面図、第３図から第４図は鼻カニューレのその他
の実施例を示す概略図、第５図及び第６図は従来の鼻カ
ニューレの概略図、第７図は鼻孔の特徴を示す概略図。 図中、１、1a、1bは鼻カニューレ、２は本体、３は鼻孔
挿入部、４及び５は酸素ガスの供給路、６は膨出部、７
は先端、８は基端、10は溝、11はＯリング、12は孔を示
す。FIG. 1 is a schematic view of a nasal cannula of the present invention, and FIG.
FIGS. 3 and 4 are schematic views showing another embodiment of a nasal cannula, FIGS. 5 and 6 are schematic views of a conventional nasal cannula, and FIG. 7 shows features of a nostril. Schematic. In the drawing, 1, 1a, 1b are nasal cannulas, 2 is a main body, 3 is a nostril insertion portion, 4 and 5 are oxygen gas supply paths, 6 is a bulging portion, 7
Indicates a distal end, 8 indicates a proximal end, 10 indicates a groove, 11 indicates an O-ring, and 12 indicates a hole.
Claims (3)
の本体２と、内部に前記酸素ガスの供給路５と連通する
酸素ガスの供給路４を形成した管状の鼻孔挿入部３とか
ら構成され、 前記本体２の中央部の両側に前記鼻孔挿入部３を二本、
略垂直に突設し、 前記鼻孔挿入部３の中腹部に膨出部６を形成し、前記鼻
孔挿入部３の先端７の径d1と膨出部６の径Ｄと鼻孔挿入
部３の基端８の径d2の大きさをＤ＞d2＞d1となるように
形成した、ことを特徴とする鼻カニューレ１。1. A tubular main body 2 having an oxygen gas supply passage 5 formed therein, and a tubular nostril insertion portion 3 having an oxygen gas supply passage 4 communicated with the oxygen gas supply passage 5 formed therein. And two nostril insertion portions 3 on both sides of a central portion of the main body 2,
A projecting part 6 is formed substantially vertically, and a bulging part 6 is formed in the middle part of the nostril insertion part 3. The diameter d 1 of the tip 7 of the nostril inserting part 3, the diameter D of the bulging part 6 and the base of the nostril inserting part 3 A nasal cannula 1 characterized in that the size of the diameter d2 of the end 8 is formed so that D>d2> d1.
の本体２と、内部に前記酸素ガスの供給路５と連通する
酸素ガスの供給路４を形成した管状の鼻孔挿入部3aとか
ら構成され、 前記本体２の中央部の両側に前記鼻孔挿入部3aを二本、
略垂直に突設し、 前記鼻孔挿入部3aの中腹部にＯリング11を装着し、前記
鼻孔挿入部3aの先端７の径d1とＯリング11の径Ｄと鼻孔
挿入部3aの基端８の径d2の大きさをＤ＞d2＞d1となるよ
うに形成した、ことを特徴とする鼻カニューレ1a。2. A tubular body 2 having an oxygen gas supply passage 5 formed therein, and a tubular nostril insertion portion 3a having an oxygen gas supply passage 4 formed therein and communicating with the oxygen gas supply passage 5. Two nostril insertion portions 3a on both sides of a central portion of the main body 2,
The O-ring 11 is attached to the middle part of the nostril insertion part 3a, the diameter d1 of the tip 7 of the nostril insertion part 3a, the diameter D of the O-ring 11, and the base end 8 of the nostril insertion part 3a. The nasal cannula 1a, characterized in that the diameter d2 of the nasal cannula is formed so that D>d2> d1.
の本体２と、内部に前記酸素ガスの供給路５と連通する
酸素ガスの供給路４を形成した管状の鼻孔挿入部3bとか
ら構成され、 前記本体２の中央部の両側に前記鼻孔挿入部3bを二本、
略垂直に突設し、 前記鼻孔挿入部3bの中腹部に膨出部６を形成し、前記鼻
孔挿入部3bの先端7bの径d1と膨出部６の径Ｄと鼻孔挿入
部3bの基端８の径d2の大きさをＤ＞d2＞d1となるように
形成し、鼻孔挿入部3bの先端7bに孔12を形成した、こと
を特徴とする鼻カニューレ1b。3. A tubular main body 2 having an oxygen gas supply passage 5 formed therein, and a tubular nostril insertion portion 3b having an oxygen gas supply passage 4 formed therein which communicates with the oxygen gas supply passage 5. Two nostril insertion portions 3b on both sides of a central portion of the main body 2,
A projecting portion 6 is formed substantially vertically, and a bulging portion 6 is formed in the middle part of the nostril insertion portion 3b. The diameter d1 of the tip 7b of the nostril inserting portion 3b, the diameter D of the bulging portion 6, and the base A nasal cannula 1b, characterized in that the diameter d2 of the end 8 is formed such that D>d2> d1, and a hole 12 is formed at the tip 7b of the nostril insertion portion 3b.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1260578A JP2745237B2 (en) | 1989-10-05 | 1989-10-05 | Nasal cannula |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1260578A JP2745237B2 (en) | 1989-10-05 | 1989-10-05 | Nasal cannula |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03121078A JPH03121078A (en) | 1991-05-23 |
| JP2745237B2 true JP2745237B2 (en) | 1998-04-28 |
Family
ID=17349899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1260578A Expired - Fee Related JP2745237B2 (en) | 1989-10-05 | 1989-10-05 | Nasal cannula |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2745237B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7318437B2 (en) | 2003-02-21 | 2008-01-15 | Resmed Limited | Nasal assembly |
| JP4907905B2 (en) * | 2005-05-27 | 2012-04-04 | 信行 大原 | Nasal protector for nasal insertion type endoscope |
| JP5069714B2 (en) * | 2009-03-30 | 2012-11-07 | 信行 大原 | Nasal protector for nasal insertion type endoscope |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6158667A (en) * | 1984-08-23 | 1986-03-25 | チヤド セラピユ−テイツクス インコ−ポレ−テツド | Nose canula structure |
| JPH02102250U (en) * | 1989-01-28 | 1990-08-14 | ||
| JPH02104055U (en) * | 1989-02-06 | 1990-08-17 |
-
1989
- 1989-10-05 JP JP1260578A patent/JP2745237B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03121078A (en) | 1991-05-23 |
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| Date | Code | Title | Description |
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| LAPS | Cancellation because of no payment of annual fees |