JPH0397604A - Oxygen-concentrated gas feeder - Google Patents

Oxygen-concentrated gas feeder

Info

Publication number
JPH0397604A
JPH0397604A JP1232737A JP23273789A JPH0397604A JP H0397604 A JPH0397604 A JP H0397604A JP 1232737 A JP1232737 A JP 1232737A JP 23273789 A JP23273789 A JP 23273789A JP H0397604 A JPH0397604 A JP H0397604A
Authority
JP
Japan
Prior art keywords
oxygen
enriched gas
concentrated gas
gas supply
supply device
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.)
Granted
Application number
JP1232737A
Other languages
Japanese (ja)
Other versions
JP2637246B2 (en
Inventor
Akira Kato
明 加藤
Tsuguyasu Shimote
下手 従容
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Teijin Ltd
Original Assignee
Teijin Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Teijin Ltd filed Critical Teijin Ltd
Priority to JP1232737A priority Critical patent/JP2637246B2/en
Publication of JPH0397604A publication Critical patent/JPH0397604A/en
Application granted granted Critical
Publication of JP2637246B2 publication Critical patent/JP2637246B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Separation Of Gases By Adsorption (AREA)
  • Oxygen, Ozone, And Oxides In General (AREA)

Abstract

PURPOSE:To obtain an oxygen-concentrated gas feeder capable of preventing generation of water droplets in a conduit means of oxygen-concentrated gas without causing uncomfortableness due to noise by equipping a foam type humidifying means generating low noise near to an oxygen-concentrated gas feeding means. CONSTITUTION:Air is force-fed to an adsorption bed with an adsorbent capable of selectively adsorbing O2 or N2 packed therein. O2-concentrated gas obtained from this adsorption bed is supplied to the necessary places through a conduit. In the meantime, this O2-concentrated gas is passed through a foam type humidifying means which is equipped near to an O2-concentrated gas feeding means in the conduit and generates low noise of <=34dB (A). Thereby a proper amount of moisture is given to the O2-concentrated gas ordinarily little in moisture content and thereafter this O2-concentrated gas is supplied e.g. to a patient. Further as the above-mentioned humidifier, such a device is preferably utilized that foams are generated from a face excepting the bottom face of a porous member equipped to the tip of a tube lengthened underwater, namely from only the side face and/or the top face thereof.

Description

【発明の詳細な説明】 〈産業上の利用分野〉 本発明は、吸着剤を用いて空気中から酸素濃縮気体を分
離取得し、使用に供するための酸素濃縮気体供給装置に
関する。さらに詳細には、かかる酸素濃縮気体供給装置
であって、使用者の近くに加湿手段等を設置して使用し
得る改良された装置を提供するものである。
DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to an oxygen-enriched gas supply device for separating and obtaining oxygen-enriched gas from air using an adsorbent and providing the obtained oxygen-enriched gas for use. More specifically, the present invention provides an improved oxygen enriched gas supply device that can be used with a humidifier installed near the user.

〈従来技術〉 従来から呼吸器疾患の患者に対して酸素ボンベから酸素
を供給する酸素療法が行われている。また最近では空気
中から酸素を分Nl濃縮して酸素濃縮気体を使用者に供
給し得る酸素濃縮装置が開発され、それを用いた酸素療
法が次第に普及するようになって来ている。
<Prior Art> Oxygen therapy, in which oxygen is supplied from an oxygen cylinder, has been conventionally performed for patients with respiratory diseases. Recently, an oxygen concentrator has been developed that can condense oxygen from the air by Nl and supply oxygen-enriched gas to the user, and oxygen therapy using the device has become increasingly popular.

かかる酸素濃縮装置の主要なものに、例えば窒素を選択
的に吸着し得るゼオライト等の吸着剤を酸素濃縮機能部
に用いた吸着型酸素濃縮装置があげられる。
A major example of such oxygen concentrators is an adsorption type oxygen concentrator in which an adsorbent such as zeolite that can selectively adsorb nitrogen is used in the oxygen concentrator.

吸着型酸素濃縮装置の場合には、通常得られる酸素潮縮
気休の水分含有品が少いために、装置に収納された加湿
器によって加湿せしめた後の酸素園縮気体を患者に供給
するようになされていた。
In the case of adsorption-type oxygen concentrators, since the oxygen condensation gas normally obtained contains less water, it is necessary to humidify the oxygen condensed gas with a humidifier housed in the device and then supply it to the patient. It was being done.

しかしながら、かかる吸着型酸素濃縮装置では、加湿さ
れた後の酸素濃縮気体をその取り出し口から取り出し、
チューブ内を通過させて鼻カニューラ等の供給手段から
使用者に供給する際に、そのチューブ内で水分が凝集し
結露を生じミスト状の水分が使用者の鼻腔に入ることに
より不快感等を生ずる場合があった。また酸素濃縮装置
から遠く離れた位置で使用する場合には、装置の運転状
況が把握しにくいことが多く、その改善が求められてい
た。
However, in such an adsorption type oxygen concentrator, the humidified oxygen-enriched gas is taken out from the outlet,
When the product is passed through a tube and supplied to the user from a supply means such as a nasal cannula, moisture condenses within the tube, forming condensation, and the mist of moisture enters the user's nasal cavity, causing discomfort. There was a case. Furthermore, when the oxygen concentrator is used at a location far away from the device, it is often difficult to grasp the operating status of the device, and improvements have been sought.

〈発明の解決すべき課題〉 本発明は、かかるこれまでの酸素濃縮装置の問題点を解
決することを目的としている。さらに詳細には、本発明
の目的は、供給される酸素ilm気体における水滴の兄
生を極力少なくせしめ、さらに必要に応じて使用者が装
置の運転を容易に確認できる改良された装置を捉供する
ことである。
<Problems to be Solved by the Invention> The present invention aims to solve the problems of the conventional oxygen concentrators. More specifically, it is an object of the present invention to provide an improved device that minimizes the formation of water droplets in the supplied oxygen ilm gas, and also allows the user to easily check the operation of the device if necessary. That's true.

く課題を解決するための手段〉 本発明者は、かかる課題を解決するために鋭意研究した
結果、加湿器を濃縮H置本体から離して使用すると共に
、その加湿器として使用時の発生g音を低下せしめたも
のを使用することが有効であること、さらには必要に応
じて濃縮装置の運転や警報を表示するための表示手段を
使用者の近くに設置することができるような装置を採用
することが有効であることを見い出し、本発明に到達し
たものである。
Means for Solving the Problem> As a result of intensive research in order to solve the problem, the inventor of the present invention has determined that the humidifier is used away from the main body of the concentrating H holder, and that the g-noise generated when the humidifier is used is reduced. It is effective to use a device that reduces the We have discovered that it is effective to do so, and have arrived at the present invention.

即ち本発明は、酸素又は窒素を選択的に吸着し得る吸着
剤を充填した吸着床と、該吸着床に空気を供給するかあ
るいは酸素濃縮気体を取り出すためのポンプ手段をボッ
クス内に収納せしめ、該ボックス壁部に該吸着床から得
られた酸素濃縮気体を取り出すための取り出し口を具備
した吸着型酸素濃縮装置と、該取り出し口と酸素濃縮気
体を使用に供するための酸素濃縮気体供給手段とを連続
するための導管手段とを有する酸素濃縮気体の供給装直
において、該導管手段における該酸素濃縮気体供給手段
の近くに、使用時における発生g音が34dB(A)以
下の気泡型加湿手段を具備したことを特徴とする酸素濃
縮気体供給装置である。
That is, the present invention includes an adsorption bed filled with an adsorbent capable of selectively adsorbing oxygen or nitrogen, and a pump means for supplying air to the adsorption bed or taking out oxygen-enriched gas, in a box, an adsorption type oxygen concentrator having an outlet in the wall of the box for taking out the oxygen-enriched gas obtained from the adsorption bed; and an oxygen-enriched gas supply means for making the outlet and the oxygen-enriched gas available for use. In the oxygen-enriched gas supply system, which has a conduit means for continuous operation, a bubble-type humidifying means that generates a noise of 34 dB (A) or less during use is installed near the oxygen-enriched gas supply means in the conduit means. This is an oxygen enriched gas supply device characterized by comprising:

尚、かかる本発明の酸素濃縮気体供給装置には、気泡型
加湿手段が、水中に伸びかつ先端に多孔質部材を有した
チューブを具備しており、加湿ざれるべき酸素濃縮気体
が該チューブを通過し該多孔質部材の側面及び/又は上
面から微小気泡として水中に放出されるようにしたもの
であるIffiが含まれる。
In the oxygen-enriched gas supply device of the present invention, the bubble-type humidifying means is equipped with a tube that extends into the water and has a porous member at its tip, and the oxygen-enriched gas to be humidified passes through the tube. It includes Iffi which is allowed to pass through and be released into the water as micro bubbles from the side and/or top surface of the porous member.

さらに、本発明の酸素濃縮気体供給装置には、気泡型加
漏手段がガラス製の水受器部を具固したものである装置
が含まれる。
Further, the oxygen-enriched gas supply device of the present invention includes a device in which the bubble-type leakage means is a solidified glass water receiver.

また本発明の酸素濃縮気体供給装置には、吸拾型酸素濃
縮装置の運転表示手段及び/又は運転に関する警報手段
を取り付けた¥1置手段に気泡型加湿手段を設置せしめ
たものが含まれる。
Further, the oxygen enriched gas supply device of the present invention includes one in which a bubble-type humidifying means is installed in a 1-position means equipped with an operation display means and/or an alarm means regarding the operation of the absorption-type oxygen concentrator.

以下本発明について更に詳細に説明する。即ち本発明の
酸素濃縮装置における酸素濃縮機能部としては、酸素又
は窒素を選択的に吸着し得る吸呑剤を充填した1又は2
以上の吸着床があげられ、例えば窒素を選択的に吸着す
る吸着剤としては通常モレキュラーシープ5A,13X
あるいはそれらを改良したもの等が通常用いられる。尚
吸看床の数は、3以下が好ましく、医療用の場合には1
又は2が望ましい。
The present invention will be explained in more detail below. That is, the oxygen concentrating function section in the oxygen concentrator of the present invention includes one or two parts filled with an absorbent capable of selectively adsorbing oxygen or nitrogen.
The above-mentioned adsorption beds are mentioned, and for example, molecular sheets 5A and 13X are usually used as adsorbents that selectively adsorb nitrogen.
Alternatively, improved versions thereof are usually used. The number of nursing beds is preferably 3 or less, and in the case of medical use, 1
Or 2 is desirable.

本発明のポンプ手段としては、圧力変動吸着型酸素濃縮
装置の場合には通常圧縮機が用いられる。
As the pump means of the present invention, a compressor is usually used in the case of a pressure fluctuation adsorption type oxygen concentrator.

尚、吸着床のfillを大気圧以下の減圧下で行なうタ
イプの場合には真空ポンプが用いられるが、この真空ポ
ンプも本発明に言うポンプ手段である。
Incidentally, in the case of a type in which the adsorption bed is filled under reduced pressure below atmospheric pressure, a vacuum pump is used, and this vacuum pump is also the pumping means referred to in the present invention.

尚これらのポンプ手段は電fJIFJMによって駆動さ
れるものである。
Incidentally, these pump means are driven by an electric current fJIFJM.

尚本発明の吸着型酸素濃縮装置においてポンプ手段等を
冷却するための送風手段として、ファン,ブロアー等が
用いられる。
In the adsorption type oxygen concentrator of the present invention, a fan, a blower, or the like is used as a blowing means for cooling the pump means and the like.

本発明の吸着型酸素濃縮装置は、圧力変動吸着分離を行
うために、かかる吸着床やポンプ手段が電磁弁等を介し
て導管手段で連結された状態でボックス内に収納されて
いる。分離された酸素濃縮気体を取り出すために、ボッ
クスを形成する壁部に取り出し口が設けられ、その取り
出し口の先に導管手段が設けられている。かかる導管手
段の先端には、呼吸器疾患患者等の使用者の鼻腔に酸素
濃縮気体を供給するための鼻カニューラ等の酸素濃縮気
体供給手段が設置されている。さらに導管手段の途中で
あって酸素濃縮気体供給手段の近くに、即ち使用者の近
くに、気泡型加湿手段が具備されている。
In the adsorption type oxygen concentrator of the present invention, in order to perform pressure fluctuation adsorption separation, the adsorption bed and pump means are housed in a box in a state where they are connected by conduit means via a solenoid valve or the like. In order to remove the separated oxygen-enriched gas, an outlet is provided in the wall forming the box, and a conduit means is provided beyond the outlet. At the tip of the conduit means, an oxygen-enriched gas supply means such as a nasal cannula is installed for supplying oxygen-enriched gas to the nasal cavity of a user such as a patient with a respiratory disease. Further, a bubble-type humidifying means is provided in the middle of the conduit means and close to the oxygen-enriched gas supply means, that is, close to the user.

本発明の装置では、かかる気泡型加湿手段として、その
使用時における発生騒音が34dB(A)以下のものを
用いられることが好ましい。実用上、使用時の発生騒音
が31dB(A)以下の加湿手段がより好ましい。尚使
用時の発生騒音とは、一般洋室において、加湿手段に酸
素濃縮気体を流して加湿せしめる操作を行った場合に、
1′m.ll1れた所で測定される騒音をいう。
In the apparatus of the present invention, it is preferable that the bubble type humidifying means is one that generates noise of 34 dB (A) or less during use. Practically speaking, a humidifying means that generates noise of 31 dB (A) or less during use is more preferable. The noise generated during use refers to the noise generated when humidifying a general Western-style room by flowing oxygen-enriched gas through the humidifier.
1'm. This refers to the noise measured at a location where

気泡型加湿手段とは、通常、水受器部と、水中に酸素濃
縮気体を気泡の形で導入する手段を右する加湿器をいう
。より好ましい加湿器としては、水中に伸びたチューブ
の先端に具備された多孔質部材の実質士に底面以外の面
、即ち側面及び/又は上面からのみ気泡が発生するよう
にしたものがあげられる。この様な構造を採用すること
によって気泡の合−の頻度が少なくなり、それにより騒
音の発生を低下せしめることができる。
Bubble-type humidification means generally refers to a humidifier that includes a water receiver and a means for introducing oxygen-enriched gas into water in the form of bubbles. A more preferred humidifier is one in which air bubbles are generated only from the surface other than the bottom surface, that is, the side surface and/or the top surface of a porous member provided at the tip of a tube extending into the water. By employing such a structure, the frequency of bubble coalescence is reduced, thereby making it possible to reduce noise generation.

また加湿手段としては、水受器部がガラス製であるもの
が、内部で発生した騒音が外部に伝わりにくいので、騒
音低下の点で実用上有利である。
Further, as a humidifying means, one in which the water receiver part is made of glass is practically advantageous in terms of noise reduction, since the noise generated inside is difficult to be transmitted to the outside.

また本発明の酸素濃縮気体供給装置として、吸着型M素
濃縮装置の運転表示手段及び音や光による警報手段の少
なくともいずれか一方を取り付けた部材に、加湿器を設
置したものが、使用上有利であると考えられる。かかる
部材としては、運転表示手段等を備えたパネル面を有し
たボックス内に、加湿器を収納せしめたものがあげられ
る。尚場合によっては、加湿器をつり下げるようにした
ものであってもよい。尚運転表示等は濃縮装置自体にも
具備せしめて、両方併用又はいずれか一方を選択して使
用できるようにしてもよい。
Further, as the oxygen enriched gas supply device of the present invention, it is advantageous for use to have a humidifier installed on a member to which at least one of the operation display means and the sound or light alarm means of the adsorption type M element concentrator is attached. It is thought that. An example of such a member is one in which a humidifier is housed in a box having a panel surface equipped with an operation display means and the like. In some cases, the humidifier may be suspended. Incidentally, an operation display etc. may be provided in the concentrating device itself so that both can be used together or either one can be selected and used.

本発明の装置の好ましい態様である圧力変動吸着型酸素
濃縮装置の例について更に詳細に説明する。即ち、圧縮
機と送風機に加えて窒素を選択的に吸看する吸着剤を充
填した2基の吸着床と、その吸着剤から吐出された酸素
濃縮気体を一時貯留する貯留タンクとを備えたものであ
って、流路切換え用三方自動切換弁を介して圧縮機と各
吸着床を連結した導管手段、吸着床と貯留タンクを各々
の自動開閉弁を介して連結した導管手段、貯留タンクか
らの酸素濃縮気体を使用に供するための導管手段、均圧
化用自動開閉弁を介して2基の吐出側を連結し均圧化す
るための導管手段及び各吸着床の入口側から窒素の濃度
の高められた気体を排出するための自動開閉弁付の導管
手段を備えたものがあげられる。この装置の運転形式と
しては、一方の吸着床に圧縮空気を供給して窒素を吸肴
させて90%程度に濃縮された酸素濃縮気体を吐出せし
める吸着工程を行なった後、均圧化自動開閉弁を開いて
、既に脱着が終了している他床にその一方の吸着床から
酸素濃縮気体を流入させて均圧{ヒを行ない、次いで排
出用自動開閉弁を開いて残留気体を放出しさらに貯留タ
ンクから酸素濃縮気体を逆流パージして1152着工程
を行なう一連のサイクルを交互に行なうものである。尚
使用に供するための導管手段には減圧調節弁.流M設定
手段等が具備されている。
An example of a pressure fluctuation adsorption type oxygen concentrator, which is a preferred embodiment of the device of the present invention, will be described in more detail. That is, in addition to a compressor and a blower, it is equipped with two adsorption beds filled with an adsorbent that selectively absorbs nitrogen, and a storage tank that temporarily stores the oxygen-enriched gas discharged from the adsorbent. Conduit means connecting the compressor and each adsorption bed via a three-way automatic switching valve for flow path switching, conduit means connecting the adsorption bed and storage tank via each automatic opening/closing valve, A conduit means for supplying oxygen-enriched gas for use, a conduit means for connecting the two discharge sides to equalize the pressure via an automatic pressure equalization valve, and a conduit means for connecting the two discharge sides to equalize the pressure through an automatic pressure equalization valve, and supplying the nitrogen concentration from the inlet side of each adsorption bed. One may include a conduit means with an automatic opening/closing valve for discharging the elevated gas. The operating mode of this equipment is to perform an adsorption process in which compressed air is supplied to one adsorption bed to absorb nitrogen and discharge an oxygen-enriched gas that is about 90% concentrated, and then the pressure is equalized and automatically opened and closed. The valve is opened to equalize the pressure by flowing the oxygen-enriched gas from one adsorption bed into the other adsorption bed, where desorption has already been completed, and then the automatic discharge valve is opened to release the residual gas. A series of cycles in which the oxygen enriched gas is back-purged from the storage tank and the 1152 deposition process is performed are alternately performed. In addition, the conduit means for use is equipped with a pressure reducing control valve. A flow M setting means and the like are provided.

〈発明の効果〉 本発明の酸素濃縮装置によれば、低騒音の加湿器を使用
者の近くに設買して使用することによって、騒音による
不快感を生ずることなく、酸素濃縮気体の導管手段内で
の水滴発生を防止する効果が得られる。
<Effects of the Invention> According to the oxygen concentrator of the present invention, by installing and using a low-noise humidifier near the user, the conduit means for oxygen-enriched gas can be used without causing discomfort due to noise. This has the effect of preventing water droplets from forming inside.

また運転表示や警報が使用者の近くでなされるので、よ
り大きな安心感を保った運転が容易になる。
Furthermore, since driving displays and warnings are provided near the user, it becomes easier to drive with a greater sense of security.

Claims (4)

【特許請求の範囲】[Claims] (1)酸素又は窒素を選択的に吸着し得る吸着剤を充填
した吸着床と、該吸着床に空気を供給するかあるいは酸
素濃縮気体を取り出すためのポンプ手段をボックス内に
収納せしめ、該ボックス壁部に該吸着床から得られた酸
素濃縮気体を取り出すための取り出し口を具備した吸着
型酸素濃縮装置と、該取り出し口と酸素濃縮気体を使用
に供するための酸素濃縮気体供給手段とを連続するため
の導管手段とを有する酸素濃縮気体の供給装置において
、該導管手段における該酸素濃縮気体供給手段の近くに
、使用時における発生騒音が34dB(A)以下の気泡
型加湿手段を具備したことを特徴とする酸素濃縮気体供
給装置。
(1) An adsorption bed filled with an adsorbent capable of selectively adsorbing oxygen or nitrogen and a pump means for supplying air to the adsorption bed or taking out oxygen-enriched gas are housed in a box, and the box An adsorption-type oxygen concentrator equipped with an outlet in the wall for taking out the oxygen-enriched gas obtained from the adsorption bed, and an oxygen-enriched gas supply means for making the oxygen-enriched gas available for use and the outlet is connected in series. In the oxygen-enriched gas supply device, the oxygen-enriched gas supply device has a conduit means near the oxygen-enriched gas supply means, and the conduit means is provided with a bubble-type humidifying means that generates noise of 34 dB (A) or less during use. An oxygen enriched gas supply device featuring:
(2)該気泡型加湿手段が、水中に伸びかつ先端に多孔
質部材を有したチューブを具備しており、加湿されるべ
き酸素濃縮気体が該チューブを通過し該多孔質部材の側
面及び/又は上面から微小気泡として水中に放出される
ようにしたものである請求項1の酸素濃縮気体供給装置
(2) The bubble-type humidifying means includes a tube that extends into the water and has a porous member at its tip, and the oxygen-enriched gas to be humidified passes through the tube and the side surface of the porous member and/or 2. The oxygen enriched gas supply device according to claim 1, wherein the oxygen enriched gas is discharged into the water from the top surface as microbubbles.
(3)該気泡型加湿手段が、ガラス製の水受器部を具備
したものである酸素濃縮気体供給装置。
(3) An oxygen-concentrated gas supply device, wherein the bubble-type humidifying means includes a water receiver made of glass.
(4)該気泡型加湿手段が、該酸素濃縮装置の運転表示
手段及び/又は運転に関する警報手段を取り付けた設置
手段に設置されている酸素濃縮気体供給装置。
(4) An oxygen-enriched gas supply device in which the bubble-type humidifying means is installed in an installation means equipped with an operation display means and/or an operation-related alarm means of the oxygen concentrator.
JP1232737A 1989-09-11 1989-09-11 Oxygen-enriched gas supply device Expired - Fee Related JP2637246B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1232737A JP2637246B2 (en) 1989-09-11 1989-09-11 Oxygen-enriched gas supply device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1232737A JP2637246B2 (en) 1989-09-11 1989-09-11 Oxygen-enriched gas supply device

Publications (2)

Publication Number Publication Date
JPH0397604A true JPH0397604A (en) 1991-04-23
JP2637246B2 JP2637246B2 (en) 1997-08-06

Family

ID=16943980

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1232737A Expired - Fee Related JP2637246B2 (en) 1989-09-11 1989-09-11 Oxygen-enriched gas supply device

Country Status (1)

Country Link
JP (1) JP2637246B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5799652A (en) * 1995-05-22 1998-09-01 Hypoxico Inc. Hypoxic room system and equipment for Hypoxic training and therapy at standard atmospheric pressure
US7018443B2 (en) 2000-09-06 2006-03-28 Colorado Altitude Training Llc Method and system for reducing body weight in an enclosed atmospheric environment

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5869575A (en) * 1981-08-18 1983-04-25 ピユ−リタン−ベネツト・コ−ポレ−シヨン Oxygen adjusting and alarm apparatus of anesthetic device
JPS60160969A (en) * 1984-01-20 1985-08-22 ドレーゲルヴエルク・アクチエンゲゼルシヤフト Respirator having high frequency respiration
JPS62139671A (en) * 1985-12-13 1987-06-23 帝人株式会社 Humidifier and oxygen enriched gas supply apparatus

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5869575A (en) * 1981-08-18 1983-04-25 ピユ−リタン−ベネツト・コ−ポレ−シヨン Oxygen adjusting and alarm apparatus of anesthetic device
JPS60160969A (en) * 1984-01-20 1985-08-22 ドレーゲルヴエルク・アクチエンゲゼルシヤフト Respirator having high frequency respiration
JPS62139671A (en) * 1985-12-13 1987-06-23 帝人株式会社 Humidifier and oxygen enriched gas supply apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5799652A (en) * 1995-05-22 1998-09-01 Hypoxico Inc. Hypoxic room system and equipment for Hypoxic training and therapy at standard atmospheric pressure
US7018443B2 (en) 2000-09-06 2006-03-28 Colorado Altitude Training Llc Method and system for reducing body weight in an enclosed atmospheric environment

Also Published As

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