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WO1998022171A1 - Oxygen supply device capable of adjusting concentration of oxygen fed to spontaneous breathing patient using tracheal tube or mask - Google Patents

Oxygen supply device capable of adjusting concentration of oxygen fed to spontaneous breathing patient using tracheal tube or mask Download PDF

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Publication number
WO1998022171A1
WO1998022171A1 PCT/JP1996/003382 JP9603382W WO9822171A1 WO 1998022171 A1 WO1998022171 A1 WO 1998022171A1 JP 9603382 W JP9603382 W JP 9603382W WO 9822171 A1 WO9822171 A1 WO 9822171A1
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WIPO (PCT)
Prior art keywords
oxygen
valve
oxygen supply
patient
supply device
Prior art date
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Ceased
Application number
PCT/JP1996/003382
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French (fr)
Japanese (ja)
Inventor
Satoshi Kobayashi
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Individual
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Individual
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Publication date
Priority to JP7164466A priority Critical patent/JPH08317981A/en
Application filed by Individual filed Critical Individual
Priority to AU75882/96A priority patent/AU7588296A/en
Priority to PCT/JP1996/003382 priority patent/WO1998022171A1/en
Publication of WO1998022171A1 publication Critical patent/WO1998022171A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators; Tracheal tubes
    • A61M16/10—Preparation of respiratory gases or vapours
    • A61M16/12—Preparation of respiratory gases or vapours by mixing different gases

Definitions

  • the present invention relates to an oxygen supply device having an oxygen concentration controllable device having an expiratory inspiratory valve complex and a storage tube for use in a spontaneously breathing patient using a tracheal tube or a mask.
  • Conventional technology having an oxygen concentration controllable device having an expiratory inspiratory valve complex and a storage tube for use in a spontaneously breathing patient using a tracheal tube or a mask.
  • oxygen is supplied to a spontaneously breathing patient using a tracheal tube by inserting an oxygen supply catheter into the tracheal tube or placing a mask or similar object over the tracheal tube opening and supplying oxygen to it.
  • the tube was connected.
  • an oxygen supply tube was connected directly to the mask.
  • Nasal catheterization was common in patients who did not use them.
  • the amount of oxygen delivered to the patient is less than or equal to the amount of oxygen that flowed during the inspiratory phase and the amount of oxygen that flowed during other times. The element is not used and is wasted.
  • re-inhale a portion of the breath in patients with masks, re-inhale a portion of the breath.
  • the amount of oxygen actually supplied to the patient was significantly lower than that indicated by the oxygen flow meter, and the oxygen concentration in the inspired air could not be adjusted, making it particularly difficult to inhale high oxygen concentrations.
  • Some oxygen inhalers use the bench lily effect, but a high flow rate of oxygen is required to increase the oxygen concentration in the intake air.
  • the oxygen concentration in the intake air can be adjusted appropriately from 21% to 100% with a relatively low flow rate of constantly flowing oxygen. It is economical to supply oxygen to patients without waste. There is almost no respiratory resistance. Light and small device, structure Is simple, can be mass-produced at low cost, and can be disposable. The usage is simple. Does not re-inhale expiration. Even if the tube comes off or the oxygen supply is stopped, the air supply is guaranteed and it is extremely safe. There is no device that satisfies all of these characteristics. Structure and function of the oxygen supply device of the present invention
  • the oxygenator places an exhalation-inspiratory valve complex at the patient's end (proximal end), where exhalation is expelled directly to the outside via a flow valve (expiratory valve).
  • the inspired air enters through another one-way valve (inspiratory valve) and is supplied to the patient.
  • the inspired air is the one in which the oxygen concentration is set in the respiratory tract, that is, the oxygen and the atmosphere are separated at a specified ratio on both the proximal and distal sides, and are mixed after being inhaled.
  • Oxygen concentration setting is adjusted by adjusting the flow rate from the oxygen supply source.
  • a smaller-diameter oxygen supply tube is installed inside the storage tube, and its opening is located near the intake valve.
  • the patient's opposite end (distal end) of the respiratory tract is released and fills the respiratory tract, and any excess oxygen is released into the atmosphere without resistance.
  • FIG. 1 shows a view in which an oxygen supply device according to the present invention is connected to a spontaneously breathing patient using a tracheal tube
  • FIG. 2 shows a longitudinal sectional view of the oxygen supply device according to the present invention.

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  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Pulmonology (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)

Abstract

An oxygen supply device which feeds oxygen of optimum concentration to a patient without waste, eliminates sucking-in of expiration and provides little resistance to breathing and which can precisely adjust an oxygen concentration of inspiration between 21 and 100 % with oxygen of relatively small flowrate. A combination expiration and inspiration valve is disposed on an end (proximal end) of the oxygen supply device on a patient side so that expiration can be exhausted outside through a one-way flow valve (expiration valve), and an oxygen supply tube of small diameter having an opening near an inspiration valve in a gas storage pipe, of which an end (distal end) opposite to the patient is opened, is provided so that oxygen from the tube and a gas having a ratio of oxygen to air set by a gas in the gas storage pipe are made to flow in through a one-way flow valve (inspiration valve).

Description

明 細 書 気管チューブまたはマスク使用の自発呼吸患者への酸素濃度調節 可能な酸素供給装置  Description Oxygen supply device with adjustable oxygen concentration for spontaneously breathing patients using tracheal tube or mask

技術分野 Technical field

本発明は気管チューブまたはマスク使用の自発呼吸患者への使 用を目的とした呼気吸気弁複合体及び貯気管を有する酸素濃度調 節可能な酸素供給装置に関するものである。 従来の技術  TECHNICAL FIELD The present invention relates to an oxygen supply device having an oxygen concentration controllable device having an expiratory inspiratory valve complex and a storage tube for use in a spontaneously breathing patient using a tracheal tube or a mask. Conventional technology

従来、 気管チュ―プ使用の自発呼吸患者への酸素供給には気管 チューブ内へ酸素供給のカテーテルを挿入したり又は気管チュー ブ開口部を覆うようにマスク又はそれに類する物を置きそれに酸 素供給チューブを接続していた。 マスク使用の自発呼吸患者には マスクに直接酸素供給チューブを接続していた。 これらを使用し ない患者に於いては鼻腔カテーテル法が一般的であった。 これら の方法に於いては患者に供給される酸素量は吸気相の時間内に流 入した酸素量又はそれ以下であり、 それ以外の時間内に流れた酸 素は利用されず無駄となる。 そのうえマスク使用の患者に於いて は呼気の一部を再吸入する。 実際に患者に供給される酸素量は酸 素流量計の示すものより著るしく低くまた吸気の酸素濃度を調節 することもできず特に高濃度の酸素を吸入させることが困難であ つた。 バッグ及び呼気弁吸気弁を備える構造のものもあるが酸素 の供給が絶たれた場合の安全性に欠ける。 ベンチユリ—効果を利 用した酸素吸入装置もあるが吸気の酸素濃度を高めるためには高 流量の酸素を要する。 酸素テン トを使用する方法もあるが装置及 び使用する酸素量が大きく装置が高価であり患者の身体に接する 治療手技及び看護が大きく制限される欠点がある。 Conventionally, oxygen is supplied to a spontaneously breathing patient using a tracheal tube by inserting an oxygen supply catheter into the tracheal tube or placing a mask or similar object over the tracheal tube opening and supplying oxygen to it. The tube was connected. For spontaneously breathing patients using a mask, an oxygen supply tube was connected directly to the mask. Nasal catheterization was common in patients who did not use them. In these methods, the amount of oxygen delivered to the patient is less than or equal to the amount of oxygen that flowed during the inspiratory phase and the amount of oxygen that flowed during other times. The element is not used and is wasted. In addition, in patients with masks, re-inhale a portion of the breath. The amount of oxygen actually supplied to the patient was significantly lower than that indicated by the oxygen flow meter, and the oxygen concentration in the inspired air could not be adjusted, making it particularly difficult to inhale high oxygen concentrations. Some have a bag and an exhalation-valve intake valve, but lack safety when the supply of oxygen is cut off. Some oxygen inhalers use the bench lily effect, but a high flow rate of oxygen is required to increase the oxygen concentration in the intake air. Although there is a method using an oxygen tent, the device and the amount of oxygen to be used are large and the device is expensive, so that there are drawbacks in that treatment procedures and nursing care in contact with the patient's body are greatly restricted.

以上に述べた従来の技術に於いては全て吸気の酸素濃度を適格 に把握し調節することが極めて困難であった。 本発明が解決しょうとする技術的課題  In all of the conventional techniques described above, it was extremely difficult to properly grasp and adjust the oxygen concentration of the intake air. Technical problems to be solved by the present invention

前項に記載した様々な短所を持たない酸素供給装置の開発が望 まれていた。 本発明はそれに応えるものである。 即ち本発明によ る酸素供給装置の特徴として次の点があげられる。  It was desired to develop an oxygen supply device that did not have the various disadvantages described in the previous section. The present invention responds. That is, the features of the oxygen supply device according to the present invention are as follows.

吸気の酸素濃度を 2 1 %から 1 0 0 %まで比較的低流量の定常 的に流れる酸素で適格に調節できる。 酸素を無駄なく患者に供給 し経済的である。 呼吸抵抗が殆どない。 装置が軽く小さく、 構造 が簡単で、 廉価に量産でき、 使い捨ても可能とする。 使用法も簡 単である。 呼気を再吸入することがない。 仮にチューブが外れ， または酸素供給源が停止しても空気の供給は保証される為極めて 安全である。 このような性格を全て満たす装置は従来存在しなか つた。 本発明の酸素供給装置の構造及び機能 The oxygen concentration in the intake air can be adjusted appropriately from 21% to 100% with a relatively low flow rate of constantly flowing oxygen. It is economical to supply oxygen to patients without waste. There is almost no respiratory resistance. Light and small device, structure Is simple, can be mass-produced at low cost, and can be disposable. The usage is simple. Does not re-inhale expiration. Even if the tube comes off or the oxygen supply is stopped, the air supply is guaranteed and it is extremely safe. There is no device that satisfies all of these characteristics. Structure and function of the oxygen supply device of the present invention

この酸素供給装置は患者側末端部 （近位端） に呼気吸気弁複合 体を置きそれにて呼気は一方流通弁 （呼気弁） より直接外部に排 出される。 又吸気は別の一方流通弁 （吸気弁） より入り患者に供 給される。 吸気は貯気管内で酸素濃度が設定されたもの即ち酸素 と大気が近位遠位両側に定めた比率で分かれたものであり吸入さ れた後混合される。 酸素濃度の設定調節は酸素供給源よりの流量 の調節により行う。 弁の構造は指定しないが呼吸抵抗が殆どない ものとする。 貯気管の内部には、 より径の小さい酸素供給チュー ブを設置しその開口部は吸気弁の近くに置く。 貯気管の患者の反 対側末端部 （遠位端） は解放とし貯気管を満たした後、 余剰の酸 素があればそれは大気中に抵抗なく放散する。 実施例 The oxygenator places an exhalation-inspiratory valve complex at the patient's end (proximal end), where exhalation is expelled directly to the outside via a flow valve (expiratory valve). The inspired air enters through another one-way valve (inspiratory valve) and is supplied to the patient. The inspired air is the one in which the oxygen concentration is set in the respiratory tract, that is, the oxygen and the atmosphere are separated at a specified ratio on both the proximal and distal sides, and are mixed after being inhaled. Oxygen concentration setting is adjusted by adjusting the flow rate from the oxygen supply source. Although the valve structure is not specified, it is assumed that there is almost no respiratory resistance. A smaller-diameter oxygen supply tube is installed inside the storage tube, and its opening is located near the intake valve. The patient's opposite end (distal end) of the respiratory tract is released and fills the respiratory tract, and any excess oxygen is released into the atmosphere without resistance. Example

まず貯気管の内径が 2. 2 cm 酸素供給チューブの外径が 0. 8cmの場合、 貯気管の内部の容積即ち吸入されるべき吸気容 積を 8 0 0mlとした場合は貯気管の長さ 2. 42 mが必要となる c これは一回換気量としては十分であり、 即ちこの長さで貯気管は 十分である。 これ以上あっても差支えない。 一回換気量 ml = TV、 毎分呼吸数= 、 設定を希望する酸素濃度 とした 場合、 酸素供給源よりは毎分流すべき酸素量' = 02 は次の式で 求められる。 First, when the inner diameter of the air storage tube is 2.2 cm, the outer diameter of the oxygen supply tube is 0.8 cm, and when the internal volume of the air storage tube, that is, the intake volume to be inhaled is 800 ml, the length of the air storage tube 2. 42 m is required c This is enough for tidal volume, that is, this length is enough for the aeration tube. There can be more. Tidal volume ml = TV, per minute respiratory rate =, when the oxygen concentration to the desired setting, the amount of oxygen '= 0 2 should each shunt is the oxygen supply source is obtained by the following expression.

02 = (%— 2 1) X RR X TV+ 7 9 + 1 0 00 例えば RR 1 2 T V= 50 0 で 6 0としたい場合 02 =2. 9 6¾となり、 また 1 0 0%の吸気酸素濃度を得るには毎 分 6 流せばよいことになる。 この流量を求めるための計算図表 を使用することができる。 図面の簡単な説明 0 2 = (% — 2 1) X RR X TV + 7 9 + 1 0 00 For example, if you want to set 60 when RR 1 2 TV = 50 0, it becomes 0 2 = 2.96¾, and 100% of inspired oxygen To obtain the concentration, it is necessary to flow 6 times per minute. A calculation chart to determine this flow rate can be used. BRIEF DESCRIPTION OF THE FIGURES

第 1図は本発明による酸素供給装置を気管チュ一ブ使用の自発 呼吸患者に接続した図を示し、 第 2図は本発明による酸素供給装 置の長軸断面図を示す。 符号の説明 FIG. 1 shows a view in which an oxygen supply device according to the present invention is connected to a spontaneously breathing patient using a tracheal tube, and FIG. 2 shows a longitudinal sectional view of the oxygen supply device according to the present invention. Explanation of reference numerals

A 呼気の流れ  A Expiration flow

B 吸気の流れ B Intake flow

C 呼気弁 C exhalation valve

D 吸気弁 D Intake valve

E 呼気吸気弁複合体  E Expiratory intake valve complex

F 貯気管 F air tube

G 酸素供給チューブ  G Oxygen supply tube

H 酸素供給源及び酸素流量計  H Oxygen supply and oxygen flow meter

Claims

請求の範囲 The scope of the claims 1 . 酸素供給装置の患者側末端部 （近位端） に呼気吸気弁複合 体を置きそれにて呼気は一方流通弁 （呼気弁） を通り外部に排出 され又吸気は別の一方流通弁 （吸気弁） を通り貯気管より流入す る。 吸気は酸素濃度 （酸素対空気容積比率） が設定されたもので ある。 1. Place the expiratory inspiratory valve complex at the patient end (proximal end) of the oxygen supply device, and then the expiration is discharged to the outside through one flow valve (expiratory valve) and the inspired air is discharged to another one flow valve (inspired). Through the valve). The intake air has an oxygen concentration (oxygen to air volume ratio) set. 2 . 貯気管を設ける。 その内部には、 より径の小さい酸素供給 チューブを設置しその開口部は吸気弁の近く とする。 貯気管の患 者の反対側末端部 （遠位端） は解放とする。 貯気管と酸素供給チ ュ一ブは一体とする。  2. Install an air storage tube. Inside it, a smaller diameter oxygen supply tube is installed, and its opening is near the intake valve. The patient's opposite end (distal end) of the aspirator is left open. The storage tube and oxygen supply tube will be integrated.
PCT/JP1996/003382 1995-05-26 1996-11-18 Oxygen supply device capable of adjusting concentration of oxygen fed to spontaneous breathing patient using tracheal tube or mask Ceased WO1998022171A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP7164466A JPH08317981A (en) 1995-05-26 1995-05-26 Oxygen supply apparatus regulatable of oxygen concentration to spontaneously respirable patient using tracheal tube or mask
AU75882/96A AU7588296A (en) 1996-11-18 1996-11-18 Oxygen supply device capable of adjusting concentration of oxygen fed to spontaneous breathing patient using tracheal tube or mask
PCT/JP1996/003382 WO1998022171A1 (en) 1995-05-26 1996-11-18 Oxygen supply device capable of adjusting concentration of oxygen fed to spontaneous breathing patient using tracheal tube or mask

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP7164466A JPH08317981A (en) 1995-05-26 1995-05-26 Oxygen supply apparatus regulatable of oxygen concentration to spontaneously respirable patient using tracheal tube or mask
PCT/JP1996/003382 WO1998022171A1 (en) 1995-05-26 1996-11-18 Oxygen supply device capable of adjusting concentration of oxygen fed to spontaneous breathing patient using tracheal tube or mask

Publications (1)

Publication Number Publication Date
WO1998022171A1 true WO1998022171A1 (en) 1998-05-28

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WO (1) WO1998022171A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104014062A (en) * 2014-06-20 2014-09-03 昌克勤 Oxygen uptake instrument
WO2019029185A1 (en) * 2017-08-09 2019-02-14 深圳融昕医疗科技有限公司 Inhalation valve having bypass air duct, and ventilator
CN110662574A (en) * 2017-05-22 2020-01-07 瓦优全球健康创新有限责任公司 Adjustable ambient air-oxygen mixer
CN111135413A (en) * 2020-02-20 2020-05-12 姜国 Closed oxygen inhalator

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103893893B (en) * 2012-12-27 2017-05-24 北京谊安医疗系统股份有限公司 Respirator oxygen mixer valve terminal self-checking device and method
GB201306067D0 (en) * 2013-04-04 2013-05-22 Smiths Medical Int Ltd Resuscitator arrangements and flow monitoring
GB201402016D0 (en) * 2014-02-06 2014-03-26 Smiths Medical Int Ltd Ventilators and ventilator systems

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6041975A (en) * 1983-05-04 1985-03-05 インターテック、リソースィズ、インコーポレイテッド Oxygen inhalator

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6041975A (en) * 1983-05-04 1985-03-05 インターテック、リソースィズ、インコーポレイテッド Oxygen inhalator

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104014062A (en) * 2014-06-20 2014-09-03 昌克勤 Oxygen uptake instrument
CN110662574A (en) * 2017-05-22 2020-01-07 瓦优全球健康创新有限责任公司 Adjustable ambient air-oxygen mixer
CN110662574B (en) * 2017-05-22 2023-02-17 瓦优全球健康创新有限责任公司 Adjustable ambient air-oxygen mixer
WO2019029185A1 (en) * 2017-08-09 2019-02-14 深圳融昕医疗科技有限公司 Inhalation valve having bypass air duct, and ventilator
CN111135413A (en) * 2020-02-20 2020-05-12 姜国 Closed oxygen inhalator

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