JPS6159145B2 - - Google Patents
Info
- Publication number
- JPS6159145B2 JPS6159145B2 JP19819082A JP19819082A JPS6159145B2 JP S6159145 B2 JPS6159145 B2 JP S6159145B2 JP 19819082 A JP19819082 A JP 19819082A JP 19819082 A JP19819082 A JP 19819082A JP S6159145 B2 JPS6159145 B2 JP S6159145B2
- Authority
- JP
- Japan
- Prior art keywords
- moist heat
- respiratory
- humidifier
- glycerin
- breathing
- 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
Links
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 38
- 239000000126 substance Substances 0.000 claims description 20
- 235000011187 glycerol Nutrition 0.000 claims description 19
- 238000010438 heat treatment Methods 0.000 claims description 18
- 230000029058 respiratory gaseous exchange Effects 0.000 claims description 15
- 239000001913 cellulose Substances 0.000 claims description 14
- 229920002678 cellulose Polymers 0.000 claims description 14
- 230000000241 respiratory effect Effects 0.000 claims description 14
- 238000010792 warming Methods 0.000 claims description 12
- 238000009423 ventilation Methods 0.000 claims description 7
- 238000005338 heat storage Methods 0.000 claims description 6
- 229920000036 polyvinylpyrrolidone Polymers 0.000 claims description 6
- 239000001267 polyvinylpyrrolidone Substances 0.000 claims description 6
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 claims description 6
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 5
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 5
- 229920002125 Sokalan® Polymers 0.000 claims description 4
- 150000002334 glycols Chemical class 0.000 claims description 4
- 229920000058 polyacrylate Polymers 0.000 claims description 4
- 239000004584 polyacrylic acid Substances 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 2
- 239000011148 porous material Substances 0.000 description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- 239000007789 gas Substances 0.000 description 9
- 239000000463 material Substances 0.000 description 7
- 206010002091 Anaesthesia Diseases 0.000 description 4
- 230000037005 anaesthesia Effects 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000006260 foam Substances 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 150000001298 alcohols Chemical class 0.000 description 2
- 238000011835 investigation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 239000003440 toxic substance Substances 0.000 description 2
- 210000003437 trachea Anatomy 0.000 description 2
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 239000003994 anesthetic gas Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 230000003434 inspiratory effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 235000015067 sauces Nutrition 0.000 description 1
- 230000001568 sexual effect Effects 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Respiratory Apparatuses And Protective Means (AREA)
- Resistance Heating (AREA)
- Air Humidification (AREA)
Description
【発明の詳細な説明】
発明の背景
（技術分野）
本発明は、麻酔器、人工呼吸器等を患者に使用
する際、吸気ガスの温度、湿度を好適な状態にす
るための呼吸用加温加湿器に関するものである。Detailed Description of the Invention Background of the Invention (Technical Field) The present invention relates to a respiratory warming system for adjusting the temperature and humidity of inhaled gas to a suitable state when an anesthesia machine, a respirator, etc. are used on a patient. This relates to humidifiers.
（先行技術およびその問題点）
この種の形式の加温加湿器には、例えば実公昭
52−3911号、特開昭53−126796号および特開昭55
−73268号以外にも多くのものが知られている。
これらの従来の加温加湿器は、代表的に模式的に
示すと第１図、第２図および第３図のようにな
る。第１図に示すものは、ハウジング１内に紙ま
たはアルミ箔を使用し、波状に成形体と平板とを
重ねてスパイラル状に巻いた湿熱蓄積体を内蔵し
たものである。第２図に示すものは、実公昭52−
3911号に記載されているもので、ハウジング１内
にアルミニウム製網３の間に不織物などの多孔性
材４を挾んで重ねた湿熱蓄積体を内蔵したもので
ある。第３図に示すものは、特開昭55−73268号
に記載されているもので、ハウジング１内に繊維
の綿状塊５とセルロース性の発泡体６を組み合せ
た湿熱蓄積体を内蔵したものである。(Prior art and its problems) This type of heating humidifier includes, for example,
No. 52-3911, JP-A-53-126796 and JP-A-55
-Many other things are known besides No. 73268.
These conventional heating humidifiers are typically schematically shown in FIGS. 1, 2, and 3. The device shown in FIG. 1 uses paper or aluminum foil in a housing 1, and has a built-in moist heat accumulating body formed by stacking a corrugated molded body and a flat plate and winding them in a spiral shape. The one shown in Figure 2 is
3911, in which a moist heat accumulating body is built in a housing 1 in which a porous material 4 such as a non-woven material is sandwiched between aluminum meshes 3. The device shown in FIG. 3 is described in Japanese Patent Application Laid-Open No. 55-73268, and has a moist heat accumulating body in which a flocculent mass 5 of fibers and a cellulosic foam 6 are combined in a housing 1. It is.
第１図および第２図に示すものは、後に詳細に
説明するように、湿熱蓄積体を通過する際呼気は
冷却され、呼気に含まれている水蒸気は凝結し水
滴となつて交換体に付着し、潜熱と水分を交換体
に与える形式のものであつた。従つて、初めの呼
気温における飽和水蒸気量と交換体通過後の呼気
温の飽和水蒸気量の差が、水分として蓄積される
のみであり、一般に加湿性能が低いという欠点が
あつた。第３図に示すものは、呼気の冷却による
水蒸気の凝結の他に、微細な通路を通過すること
によつて水分が湿熱蓄積体に吸着される。このた
め水分の蓄積は高い。しかしながら、交換体自体
の熱交換効率が低く、また圧力損失が高い為、交
換体容量を大きく、かつガス通過面積を広く採る
必要があり、このことはハウジング内容積を大き
くし、結局、換気効率の低下、患者への負荷の増
加という問題を起こしている。 In the case shown in Figures 1 and 2, as will be explained in detail later, the exhaled air is cooled when passing through the moist heat accumulator, and the water vapor contained in the exhaled air condenses and becomes water droplets that adhere to the exchanger. However, it was of the type that provided latent heat and moisture to the exchanger. Therefore, the difference between the amount of saturated water vapor at the initial exhalation temperature and the amount of saturated water vapor at the exhalation temperature after passing through the exchanger is only accumulated as moisture, and there is a drawback that the humidification performance is generally low. In the case shown in FIG. 3, in addition to the condensation of water vapor due to cooling of exhaled air, water is adsorbed on the moist heat storage body by passing through fine passages. Therefore, moisture accumulation is high. However, because the heat exchange efficiency of the exchanger itself is low and the pressure loss is high, it is necessary to have a large exchanger capacity and a wide gas passage area, which increases the internal volume of the housing and ultimately improves ventilation efficiency. This has caused problems such as a decrease in patient performance and an increase in the burden on patients.
発明の目的
従つて、本発明は、患者に挿管した気管内チユ
ーブまたは気管切開チユーブを一端に接続し、他
端に麻酔器または人工呼吸器等に接続されている
呼吸用ガス導入チユーブに接続して使用するもの
で、吸気ガス（例えば、空気、麻酔気）を自然呼
吸に近い状態にかつ安定的に加温、加湿するもの
で、死腔容量も小さく、軽量かつ安価で、容易に
製造することができる呼吸用加温加湿器を提供す
ることを目的とするものである。 OBJECTS OF THE INVENTION Accordingly, the present invention provides a method for connecting an endotracheal tube or tracheostomy tube intubated into a patient at one end and a breathing gas introduction tube connected to an anesthesia machine, a ventilator, etc. at the other end. It is used to stably heat and humidify inspiratory gas (e.g. air, anesthetic gas) to a state similar to natural breathing, and has a small dead space volume, is lightweight, inexpensive, and easy to manufacture. The object of the present invention is to provide a heating humidifier for breathing that can perform the following functions.
発明の具体的構成
本発明によれば、ハウジングに気管内チユーブ
又は気管切開チユーブ接続用開口端と呼吸用ガス
導入チユーブ接続用開口端とを有する呼吸用加温
加湿器において、前記ハウジング内に吸湿性物質
を含漬させた通気性の湿熱蓄積体をこの湿熱蓄積
体を経てのみ通気が行なわれるよう配設すること
により、上記目的を達成することができる。前記
湿熱蓄積体が含有する吸湿性物質は、グリセリ
ン、ポリビニルピロリドン、ポリアクリル酸、ポ
リアクリル酸塩類、ポリビニルアルコールおよび
グリコール類よりなる群から選択された少なくと
も一種の化合物とし、その含有量は、５〜50w／
ｗ％とするのが好適である。また、湿熱蓄積体は
セルローススポンジで構成するのが良い。 DETAILED DESCRIPTION OF THE INVENTION According to the present invention, in a heating humidifier for breathing, the housing has an open end for connecting to an endotracheal tube or a tracheostomy tube, and an open end for connecting to a breathing gas introduction tube, in which moisture is absorbed into the housing. The above object can be achieved by arranging a breathable moist heat accumulator impregnated with a sexual substance in such a way that ventilation takes place only through this moist heat accumulator. The hygroscopic substance contained in the moist heat accumulator is at least one compound selected from the group consisting of glycerin, polyvinylpyrrolidone, polyacrylic acid, polyacrylates, polyvinyl alcohol, and glycols, and the content thereof is 5. ~50w/
It is preferable to set it as w%. Further, the moist heat accumulator is preferably composed of cellulose sponge.
以下、本発明の呼吸用加温加湿器を添付図面に
示す好適実施例につき詳細に説明する。 DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the respiratory warming humidifier of the present invention will be described in detail with reference to preferred embodiments shown in the accompanying drawings.
呼吸用加温加湿器１０は、第４図に示すよう
に、患者１１の気管１２に挿入された気管内チユ
ーブ１３の基端に装着されたコネクタ１４と、麻
酔器、人工呼吸器等に接続されている蛇管１５と
の間に介挿して使用され、自然呼吸に近い状態を
つくり出す作用をする。 As shown in FIG. 4, the respiratory warming humidifier 10 is connected to a connector 14 attached to the proximal end of an endotracheal tube 13 inserted into the trachea 12 of a patient 11, and to an anesthesia machine, a respirator, etc. It is used by being inserted between the flexible tube 15 and the serpentine tube 15, which acts to create a state similar to natural breathing.
本発明においては、第１〜３図に代表的に示し
た従来の呼吸用加温加湿器よりも、より自然に近
い状態をつくり出すことができるようにするため
に、以下に詳細に述べるような構造とする。 In the present invention, in order to be able to create a state closer to nature than the conventional respiratory warming humidifiers typically shown in FIGS. Structure.
第５図に示すように、本発明の呼吸用加温加湿
器１０は、両端に、気管内チユーブまたは気管切
開チユーブのコネクタに接続する受口１６、およ
び麻酔器、人工呼吸器等に接続される呼吸用ガス
導入チユーブを接合する受口１７が設けられたハ
ウジング１８を有し、このハウジング内に通気性
かつ吸湿性を有する湿熱蓄積体１９を、この部材
を経てのみ通気が行われるよう配設してなるもの
である。 As shown in FIG. 5, the respiratory warming humidifier 10 of the present invention has sockets 16 at both ends that are connected to a connector of an endotracheal tube or a tracheostomy tube, and an anesthesia machine, a respirator, etc. The housing has a housing 18 provided with a socket 17 to which a breathing gas inlet tube is connected, and a moisture heat accumulator 19 having air permeability and hygroscopicity is arranged in this housing so that ventilation is carried out only through this member. It is set up.
ハウジング１８内に配設される湿熱蓄積体１９
は、多孔性材料に予め吸湿性材料を含漬せしめた
ものである。多孔性材料としては、後に詳述する
吸湿性物質を担持でき、過度の圧力損失を生ぜし
めないものであれば良く、ポリビニルアルコール
系の発泡体、フエルト、ウレタンスポンジ等が使
用できるが、セルローススポンジが最も好まし
い。セルローススポンジの好適な仕様の一例を示
すと、真密度(A)1.4〜1.8ｇ／cm3、見掛け密度(B)
0.025〜0.040ｇ／cm3、空隙率（Ａ−Ｂ／Ａ×100）97〜
99％、ポアサイズφ5.0以下である。 A moist heat storage body 19 disposed within the housing 18
is a porous material impregnated with a hygroscopic material in advance. The porous material may be any material as long as it can support the hygroscopic substance described in detail later and does not cause excessive pressure loss, and polyvinyl alcohol foam, felt, urethane sponge, etc. can be used, but cellulose sponge is most preferred. An example of suitable specifications for cellulose sponge is true density (A) 1.4 to 1.8 g/cm 3 and apparent density (B).
0.025 to 0.040 g/cm 3 , porosity (AB/A×100) 97 to 99%, and pore size φ5.0 or less.
本明細書でいう吸湿性物質とは次のような性能
を併せ有するものをいう。すなわち、吸湿性物質
とは、水またはアルコール類と任意の割合で混合
可能な常温で不揮発性の液体、および水またはア
ルコール類に可溶な固体で、その吸湿性能は標準
状態（温度20℃、湿度65％）で５％以上の含水率
を有し、一旦吸湿した水分を容易に放出しうる能
力を有する毒性の低い物質であり、具体例として
は、グリセリンの他に、ポリビニルピロリドン、
ポリアクリル酸、ポリアクリル酸塩類、ポリビニ
ルアルコール、グリコール類等を挙げることがで
き、本発明においてはこれらを単独でまたは複合
して用いることができる。 The hygroscopic substance as used herein refers to a substance that has the following properties. In other words, hygroscopic substances are liquids that are nonvolatile at room temperature and can be mixed with water or alcohols in any proportion, and solids that are soluble in water or alcohols. It is a low-toxic substance that has a moisture content of 5% or more at a humidity of 65% and has the ability to easily release moisture once absorbed.Specific examples include glycerin, polyvinylpyrrolidone,
Examples include polyacrylic acid, polyacrylates, polyvinyl alcohol, and glycols, and in the present invention, these can be used alone or in combination.
多孔性材料に吸湿性物質を含漬させて湿熱蓄積
体１９を生成する具体例として、セルローススポ
ンジにグリセリンを含漬させる方法につき簡単に
説明する。水洗浄したセルローススポンジを十分
乾燥させた後、グリセリンの水またはアルコール
溶液（濃度３〜20w／ｖ％）に浸漬して均一に溶
液をしみ込ませる。約２〜３分浸漬後引き上げ、
十分タレを切つた後、室温および40℃オーブン中
に３〜24時間放置し、水またはアルコールを揮発
させ、所定の含有率に調節する。 As a specific example of producing the moist heat storage body 19 by impregnating a porous material with a hygroscopic substance, a method of impregnating a cellulose sponge with glycerin will be briefly described. After thoroughly drying the cellulose sponge that has been washed with water, it is immersed in a water or alcohol solution of glycerin (concentration 3 to 20 w/v%) to uniformly soak the solution. After soaking for about 2-3 minutes, take it out.
After thoroughly draining the sauce, leave it at room temperature and in an oven at 40°C for 3 to 24 hours to volatilize the water or alcohol and adjust the content to a predetermined level.
セルローススポンジのような多孔性材料へのグ
リセリンのような吸湿性物質の含有率について、
以下に述べるような条件で調べた結果を第６図に
示す。 Regarding the content of hygroscopic substances such as glycerin in porous materials such as cellulose sponge,
The results of the investigation under the conditions described below are shown in FIG.
(1) セルローススポンジ 直径50mm、
厚み10mm
(2) 吸 気 約20℃、25〜35％RH
(3) 呼 気 約32℃、100％RH
(4) 換気量 850ml
(5) 呼吸数 10回／min
Ｔ：加温加湿器通過後の吸気温度
Ｗ：加温加湿器通過後の吸気の絶対水分量
△Ｐ：加温加湿器の圧力損失
第６図は、加温加湿性能はグリセリンの含有率
とともに上昇する一方、圧力損失も５〜15％付近
で最小となるが、グリセリン含有率の増加に伴い
上昇することを示している。これより、セルロー
ススポンジに適当量のグリセリンを予め含有させ
ておくことにより、同体積のセルローススポンジ
でより高く安定した加温加湿性能を得ることがで
きることがわかつた。グリセリンの含有率は、同
図から５〜50w／ｗ％の範囲が好適である。グリ
セリン含有率が５％を下回ると、第６図のＴ，Ｗ
の曲線からわかるように加温加湿性能が不十分と
なり、グリセリン含有率の上限は、実用上問題な
いと考えられる圧力損失（４cmH2O／／sec）
以下に抑えるために、50％とするのが良い。な
お、グリセリン以外の上述した他の吸湿性物質に
ついても同様の調査を行なつたところ、グリセリ
ンと大差ない結果が得られた。その一例として、
グリセリンの代りにポリビニルピロリドンを使用
した加温加湿器の性能を以下に示す。(1) Cellulose sponge Diameter 50mm, Thickness 10mm (2) Inhalation Approx. 20℃, 25-35%RH (3) Exhalation Approx. 32℃, 100%RH (4) Ventilation volume 850ml (5) Breathing rate 10 times/ min T: Temperature of the intake air after passing through the heating humidifier W: Absolute moisture content of the intake air after passing through the heating humidifier △P: Pressure loss of the heating humidifier Figure 6 shows that the heating humidification performance is the glycerin content The pressure drop also reaches its minimum around 5 to 15%, but increases as the glycerin content increases. From this, it was found that by pre-containing an appropriate amount of glycerin in the cellulose sponge, higher and more stable heating and humidification performance could be obtained with the same volume of cellulose sponge. As shown in the figure, the content of glycerin is preferably in the range of 5 to 50 w/w%. When the glycerin content is less than 5%, T and W in Figure 6
As can be seen from the curve, the heating and humidifying performance is insufficient, and the upper limit of the glycerin content is at a pressure loss of 4 cmH 2 O//sec, which is considered to be no problem in practice.
In order to keep it below, it is better to set it to 50%. In addition, when similar investigations were conducted on other hygroscopic substances other than glycerin mentioned above, results not significantly different from those of glycerin were obtained. As an example,
The performance of a heating humidifier using polyvinylpyrrolidone instead of glycerin is shown below.
(1) セルローススポンジの形状 直径60mm、厚み
約10mm
(2) ポリビニルピロリドン含有率 約30％
(3) 容器内容積 約45ml
(4) 換気条件 一回換気量 850ml
呼吸数 10回／min
Ｉ：Ｅ＝１：１
(5) 測定条件
吸気 約20℃、25〜35％RH
呼気 約32℃、100％RH
(6) 性 能
加温加湿器通過後ガス 温度29.6℃
湿度29.2mg／
圧力損失 1.4cmH2O／／sec
発明の具体的作用
次に、本発明の呼吸用加温加湿器の作用につき
簡単に説明する。(1) Shape of cellulose sponge Diameter: 60 mm, thickness: Approx. 10 mm (2) Polyvinylpyrrolidone content: Approx. 30% (3) Container internal volume: Approx. 45 ml (4) Ventilation conditions Tidal volume: 850 ml Breathing rate: 10 times/min I:E = 1:1 (5) Measurement conditions Inhalation: approx. 20℃, 25-35%RH Exhalation: approx. 32℃, 100%RH (6) Performance Gas after passing through the heating humidifier Temperature: 29.6℃ Humidity: 29.2mg/Pressure drop: 1.4cmH 2 O//sec Specific Effects of the Invention Next, the effects of the respiratory warming humidifier of the present invention will be briefly explained.
第４図に示すように接続された状態で、加温加
湿器には交互に呼気、吸気が通過する。呼気の時
には、呼気の熱および湿気はセルローススポンジ
のような多孔性通気材料およびグリセリンのよう
な吸湿性物質に蓄積される。特に、呼気中の湿分
は吸湿性の大きな吸湿性物質に蓄積される。吸気
の時には、吸湿性物質は蓄積した湿分を吸気中に
容易に放出し、また、多孔性材料および吸湿性物
質に蓄積された熱も吸気中に放出され、吸気はよ
り自然呼吸に近い状態に加温加湿される。 In the connected state shown in FIG. 4, exhaled air and inhaled air alternately pass through the heating humidifier. Upon exhalation, the heat and moisture of exhaled air is stored in porous breathable materials such as cellulose sponges and hygroscopic materials such as glycerin. In particular, moisture in exhaled air accumulates in highly hygroscopic substances. During inspiration, the hygroscopic material easily releases the accumulated moisture into the inhaled air, and the heat accumulated in the porous material and the hygroscopic material is also released into the inhaled air, making the inhaled air more similar to natural breathing. is heated and humidified.
本発明で用いる吸湿性物質は多孔性材料に含漬
担持されている上、少量で十分な湿分付与性を有
する無毒性物質であるし、変質しにくい物質でも
あるので、その機能を長期間に亘つて保持する。 The hygroscopic substance used in the present invention is impregnated and supported in a porous material, is a non-toxic substance that has sufficient moisture imparting properties in a small amount, and is a substance that does not easily deteriorate, so its function can be maintained for a long period of time. to be retained for a period of time.
発明の具体的効果
本発明による呼吸用加温加湿器は、従来のもの
に比して以下に述べるような多くの利点を有す
る。 Specific Effects of the Invention The respiratory warming humidifier according to the present invention has many advantages over conventional ones as described below.
(1) 本発明においては、セルローススポンジのよ
うな多孔性材料にグリセリンのような吸湿性物
質を含漬担持させた部材に、呼吸気の通気を行
なわせる構造であるから、呼気の温度および湿
度が十分に上記部材に移行し、吸気中にこの温
度および湿分が放出されることにより、従来の
ものに比してより自然呼吸に近い状態を実現す
ることができる。(1) In the present invention, since the structure is such that a porous material such as cellulose sponge is impregnated and supported with a hygroscopic substance such as glycerin, and breathed air is aerated, the temperature and humidity of the breath are is sufficiently transferred to the above-mentioned member, and this temperature and moisture are released during intake air, making it possible to realize a state closer to natural breathing than in the conventional case.
(2) 湿熱蓄積体に含漬されている吸湿性物質が、
使用前から一定の湿分を保持しているため、使
用の際、その保持している湿分の放出により早
期に加湿が可能となる。(2) The hygroscopic substance impregnated in the moist heat accumulator is
Since it retains a certain amount of moisture before use, when it is used, the retained moisture is released, allowing for early humidification.
(3) 吸湿性物質を多孔性材料に予め含漬させた部
材をハウジング内に配設するだけの簡単な構造
であるから、殆んど保守の必要がなく、また維
持費も不要であり、製造が容易で安価に供給で
き、その結果、治療コストを低減できる。(3) Since it has a simple structure in which a member in which a porous material is pre-impregnated with a hygroscopic substance is placed inside the housing, there is almost no need for maintenance and no maintenance costs. It is easy to manufacture and can be supplied at low cost, resulting in reduced treatment costs.
(4) 吸湿性物質として、グリセリン、ポリビニル
ピロリドン、ポリアクリル酸、ポリアクリル酸
塩類、ポリビニルアルコール、グリコール類等
を用い、その使用量を５〜50w／ｗ％とするこ
とにより、湿熱蓄積体の効率が非常に高く、蓄
積体容量を小さくすることができるとともに、
安定した加温加湿性能を有する均一な製品が得
られる。(4) As a hygroscopic substance, glycerin, polyvinylpyrrolidone, polyacrylic acid, polyacrylates, polyvinyl alcohol, glycols, etc. are used, and the amount used is 5 to 50 w/w% to improve the moisture heat storage. It has very high efficiency and can reduce the storage capacity, as well as
A uniform product with stable heating and humidifying performance can be obtained.
(5) 死腔容量が非常に小さいので、CO2の蓄積が
少なく、またガスの圧縮も小さく、正確な換気
量が得られる。(5) Since the dead space volume is very small, there is little CO 2 accumulation and gas compression, allowing for accurate ventilation.
(6) 吸湿性物質を湿熱蓄積体に含漬させておくこ
とにより、保管中における湿熱蓄積体の収縮等
による性能低下を防止する。(6) By impregnating the heat-and-moisture storage with a hygroscopic substance, performance degradation due to contraction of the heat-and-moisture storage during storage is prevented.
第１図、第２図および第３図は従来の代表的呼
吸用加温加湿器の模式的縦断面図、第４図は呼吸
用加温加湿器の実際の使用状態を示す線図、第５
図は本発明の呼吸用加温加湿器の縦断面図、第６
図はセルローススポンジにグリセリンを含漬させ
た湿熱蓄積体を用いた時の特性を示すグラフであ
る。
符号の説明、１……ハウジング、２……紙等の
渦巻状体、３……アルミニウム網、４……多孔性
材、５……綿状塊、６……発泡体、１０……本発
明の呼吸用加温加湿器、１１……患者、１２……
気管、１３……気管内チユーブ、１４……コネク
タ、１５……呼吸用ガス導入チユーブ、１６，１
７……受口、１８……ハウジング、１９……湿熱
蓄積体。
Figures 1, 2 and 3 are schematic vertical cross-sectional views of typical conventional respiratory heating humidifiers, Figure 4 is a line diagram showing the actual usage of the respiratory heating humidifier, 5
The figure is a longitudinal sectional view of the respiratory warming humidifier of the present invention, No. 6.
The figure is a graph showing the characteristics when using a moist heat accumulator made of cellulose sponge impregnated with glycerin. Explanation of symbols, 1... Housing, 2... Spiral body such as paper, 3... Aluminum mesh, 4... Porous material, 5... Fluffy mass, 6... Foam, 10... Present invention respiratory warming humidifier, 11... patient, 12...
Trachea, 13... Endotracheal tube, 14... Connector, 15... Breathing gas introduction tube, 16,1
7...Socket, 18...Housing, 19...Moist heat accumulator.
Claims (1)
ユーブ接続用開口端と呼吸用ガス導入チユーブ接
続用開口端とを有する呼吸用加温加湿器におい
て、前記ハウジング内に吸湿性物質を含漬させた
通気性の湿熱蓄積体をこの湿熱蓄積体を経てのみ
通気が行なわれるよう配設したことを特徴とする
呼吸用加温加湿器。 ２ 前記湿熱蓄積体が含有する吸湿性物質は、グ
リセリン、ポリビニルピロリドン、ポリアクリル
酸、ポリアクリル酸塩類、ポリビニルアルコール
およびグリコール類よりなる群から選択された少
なくとも一種の化合物である特許請求の範囲第１
項に記載の呼吸用加温加湿器。 ３ 前記湿熱蓄積体の含有する吸湿物質の量が５
〜50w／ｗ％である特許請求の範囲第２項に記載
の呼吸用加温加湿器。 ４ 前記湿熱蓄積体はセルローススポンジからな
る特許請求の範囲第１項ないし第３項のいずれか
に記載の呼吸用加温加湿器。[Scope of Claims] 1. A respiratory warming humidifier having a housing having an open end for connecting to an endotracheal tube or a tracheostomy tube and an open end for connecting to a breathing gas introduction tube, wherein the housing contains a hygroscopic substance. A heating humidifier for breathing, characterized in that a breathable moist heat accumulating body is arranged so that ventilation is performed only through the moist heat accumulating body. 2. The hygroscopic substance contained in the moist heat accumulator is at least one compound selected from the group consisting of glycerin, polyvinylpyrrolidone, polyacrylic acid, polyacrylates, polyvinyl alcohol, and glycols. 1
Heating humidifier for breathing as described in section. 3 The amount of hygroscopic substance contained in the moist heat storage body is 5
The respiratory warming humidifier according to claim 2, which has a content of ~50w/w%. 4. The respiratory warming humidifier according to any one of claims 1 to 3, wherein the moist heat storage body is made of cellulose sponge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19819082A JPS5988159A (en) | 1982-11-11 | 1982-11-11 | Heating humidifier for breathing treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19819082A JPS5988159A (en) | 1982-11-11 | 1982-11-11 | Heating humidifier for breathing treatment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5988159A JPS5988159A (en) | 1984-05-22 |
| JPS6159145B2 true JPS6159145B2 (en) | 1986-12-15 |
Family
ID=16386965
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19819082A Granted JPS5988159A (en) | 1982-11-11 | 1982-11-11 | Heating humidifier for breathing treatment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5988159A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61162952A (en) * | 1985-01-14 | 1986-07-23 | テルモ株式会社 | Artificial lung apparatus |
| JPS61280871A (en) * | 1985-06-06 | 1986-12-11 | テルモ株式会社 | Heating humidifier for respiration |
| JP2012135481A (en) * | 2010-12-27 | 2012-07-19 | Toray Medical Co Ltd | Artificial nose, and method for producing the same |
| JP5897359B2 (en) * | 2012-03-13 | 2016-03-30 | 東レ・メディカル株式会社 | Artificial nose |
-
1982
- 1982-11-11 JP JP19819082A patent/JPS5988159A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5988159A (en) | 1984-05-22 |
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