JPS63161973A - Nose cannula - Google Patents
Nose cannulaInfo
- Publication number
- JPS63161973A JPS63161973A JP30825086A JP30825086A JPS63161973A JP S63161973 A JPS63161973 A JP S63161973A JP 30825086 A JP30825086 A JP 30825086A JP 30825086 A JP30825086 A JP 30825086A JP S63161973 A JPS63161973 A JP S63161973A
- Authority
- JP
- Japan
- Prior art keywords
- sensor
- nasal cannula
- respiratory
- passage
- 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.)
- Granted
Links
- 230000029058 respiratory gaseous exchange Effects 0.000 claims description 39
- 230000000241 respiratory effect Effects 0.000 claims description 23
- 238000003780 insertion Methods 0.000 claims description 12
- 230000037431 insertion Effects 0.000 claims description 12
- 238000005192 partition Methods 0.000 claims description 4
- 239000007789 gas Substances 0.000 description 22
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 230000007257 malfunction Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 208000014085 Chronic respiratory disease Diseases 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 2
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical compound [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910001882 dioxygen Inorganic materials 0.000 description 2
- 238000002640 oxygen therapy Methods 0.000 description 2
- 206010002091 Anaesthesia Diseases 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 230000037005 anaesthesia Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000003128 head Anatomy 0.000 description 1
- 210000003928 nasal cavity Anatomy 0.000 description 1
- 235000013842 nitrous oxide Nutrition 0.000 description 1
- 210000001331 nose Anatomy 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Landscapes
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
- Laser Surgery Devices (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、酸素療法や麻酔等に用いられる酸素、空気、
笑気ガス等の呼吸ガスを、患者に導くための鼻カニュー
ラに関するものであり、特に、患者の呼吸に同調させて
呼吸ガスを導くための鼻カニューラである。[Detailed Description of the Invention] [Industrial Application Field] The present invention is applicable to oxygen, air,
The present invention relates to a nasal cannula for guiding breathing gas such as laughing gas to a patient, and particularly to a nasal cannula for guiding breathing gas in synchronization with the patient's breathing.
酸素などのガスを愚者に吸入させる方法には、大別して
密閉型と開放型がある。密閉型は麻酔等にも用いられる
方式で酸素ガスの供給回路は外気より遮断されており、
この回路内圧の変化によって呼吸同調を行うことは容易
であり既に行われている。一方、開放型は、慢性呼吸疾
患患者が長期間にわたり鼻カニューラと呼ばれる塩化ビ
ニル樹脂等で作られた酸素供給管の先を鼻腔に装着して
吸入するもので、通常は呼吸動作とは無関係に連続的に
酸素ガスが供給される。したがって、呼気は鼻孔等から
漏れて外気へ排出されるため、回路内圧の変化によって
呼吸同調を行うことはできない。There are two main types of methods for making a fool inhale gas such as oxygen: closed type and open type. The closed type is used for anesthesia, etc., and the oxygen gas supply circuit is cut off from the outside air.
It is easy to perform respiratory synchronization by changing the internal pressure of the circuit, and this has already been done. On the other hand, with the open type, patients with chronic respiratory diseases inhale for a long period of time by attaching the tip of an oxygen supply tube made of vinyl chloride resin, etc. called a nasal cannula, to the nasal cavity, and usually do so without regard to breathing movements. Oxygen gas is continuously supplied. Therefore, exhaled air leaks from the nostrils and is discharged to the outside air, making it impossible to synchronize breathing by changing the internal pressure of the circuit.
そこで、温度センサーを呼吸気流中に配置し、呼吸動作
に関連した所定のパラメーターを感知し、このタイミン
グに応答して呼吸ガスを供給する方法（特開昭５９−８
９７２号公報）等が考案された。しかしながら、温度セ
ンサーを呼吸ガス供給回路内に設置すると呼気を惑し、
供給ガスを一時的にストップさせる事はできても、回路
内の残圧によって呼吸ガス流速は完全には０とならず、
この呼吸ガスの動きを患者の吸気と判断してしまい、す
ぐに呼吸ガスを供給しはじめるという誤動作を起こす危
険があった。また、温度センサーの少なくとも感温部を
鼻カニューラの外側に設置し、鼻孔から漏れる呼吸を感
知する方法もあるが、感温部が露出することは、構造上
破損しやすい等の欠点があった。Therefore, there is a method of placing a temperature sensor in the respiratory airflow, sensing a predetermined parameter related to breathing motion, and supplying breathing gas in response to this timing (Japanese Patent Laid-Open No. 59-8
No. 972) etc. were devised. However, if a temperature sensor is installed in the breathing gas supply circuit, it will confuse exhaled air.
Even if it is possible to temporarily stop the supply of gas, the breathing gas flow rate will not be completely reduced to zero due to the residual pressure in the circuit.
There was a risk that this movement of breathing gas would be interpreted as the patient's inhalation, leading to a malfunction in which breathing gas would immediately begin to be supplied. Another method is to install at least the temperature-sensing part of the temperature sensor outside the nasal cannula and detect the breath leaking from the nostrils, but exposing the temperature-sensing part has disadvantages such as being susceptible to structural damage. .
本発明は、従来呼吸ガスによる影響のため誤動作を生じ
易かった開放型鼻カニューラにおける呼吸同調の問題点
を解決することを目的として、呼吸を検知するセンサー
を鼻カニューラ内の呼吸ガスとは別の通路に設置し、呼
吸ガスの影響を受けることな（呼吸を正確に検知するこ
ととができ、且つ破損しにくい呼吸センサー内蔵の鼻カ
ニューラを従供しようとするものである。The present invention aims to solve the problem of breathing synchronization in conventional open nasal cannulae, which was prone to malfunction due to the influence of breathing gas. The aim is to provide a nasal cannula with a built-in respiratory sensor that can be installed in a passageway, be unaffected by respiratory gas (respiration can be detected accurately, and not easily damaged).
（発明の構成〕
即ち本発明は、１本もしくは２本の導管と１本の主管よ
りなる鼻孔挿入部、および該鼻孔挿入部に接続され呼吸
ガスを導くための導入チューブから基本的に構成される
鼻カニューラにおいて、導管の内腔管路を隔壁によって
２個の通路に分け、その一方より始まる通路（呼吸セン
サー通路）内に呼吸を検知するセンサーを配設したこと
を特徴とする鼻カニューラである。(Structure of the Invention) That is, the present invention basically consists of a nostril insertion part consisting of one or two conduits and one main pipe, and an introduction tube connected to the nostril insertion part for guiding respiratory gas. The nasal cannula is characterized in that the lumen channel of the conduit is divided into two passages by a partition wall, and a sensor for detecting respiration is disposed in the passage (respiration sensor passage) starting from one of the passages. be.
本発明の鼻カニューラは、一般に慢性呼吸疾患患者等の
酸素療法等で用いられる鼻カニューラの中に、呼吸ガス
の影響を受けない構造で呼吸を検知するセンサーを内蔵
したものであり、その外観は、直接鼻孔内に挿入される
１〜２本の導管と、これに接続し導管をささえ呼吸ガス
を導管に分配する主管よりなる鼻孔挿入部と、鼻孔挿入
部に接続され呼吸ガスを供給源より鼻孔挿入部まで導く
ための導入チューブとから基本的に構成され、頭部に巻
いたり、あるいは耳や鼻にかけたりして鼻孔挿入部を装
着固定する装着部を有する掻−最の鼻カニューラであり
、特に形状に関して限定されるものではない。The nasal cannula of the present invention is a nasal cannula that is generally used for oxygen therapy, etc. for patients with chronic respiratory diseases, and has a built-in sensor that detects breathing with a structure that is not affected by respiratory gas. , a nostril insertion section consisting of one or two conduits inserted directly into the nostrils, a main tube connected to the nostrils that supports the conduits and distributes breathing gas to the conduits, and a nostril insertion section connected to the nostril insertion section that supplies breathing gas from a source. It is a nasal cannula that basically consists of an introduction tube that leads to the nostril insertion part, and has an attachment part that attaches and fixes the nostril insertion part by wrapping it around the head or hanging it over the ear or nose. , there are no particular limitations regarding the shape.
また、呼吸を検知するセンサーとしては、焦電センサー
、温度センサー、圧力センサー、湿度センサー、感音セ
ンサー等が使用でき、中でも焦電センサーあるいは温度
センサーが好ましいが、特に限定しない。Further, as a sensor for detecting respiration, a pyroelectric sensor, a temperature sensor, a pressure sensor, a humidity sensor, a sound sensor, etc. can be used, and among them, a pyroelectric sensor or a temperature sensor is preferable, but the sensor is not particularly limited.
以下、図面に従い本発明の鼻カニューラについて詳細に
説明する。Hereinafter, the nasal cannula of the present invention will be explained in detail with reference to the drawings.
第１図は、本発明の一実施例となる鼻カニューラの鼻孔
挿入部を示す図で、直接鼻孔に挿入される２本の導管（
１）の一方便の内腔管路が隔壁によって２つの通路に分
けられ、その一方の通路の側壁に設けられた開口部を通
じて、呼吸センサー通路（７）内に呼吸を検知するセン
サーである温度センサー（２）の感温部（３）を挿入し
、主管（４）およびそれに接続された導入チューブ（５
）にそって信号ケーブル（６）を呼吸ガスの供給をコン
トロールする装置まで導く構造である。FIG. 1 is a diagram showing the nostril insertion part of a nasal cannula according to an embodiment of the present invention, in which two conduits (
1) The internal lumen conduit of the one-way stool is divided into two passages by a partition wall, and a temperature sensor that detects respiration is inserted into the respiration sensor passage (7) through an opening provided in the side wall of one of the passages. Insert the temperature sensitive part (3) of the sensor (2) and insert the main pipe (4) and the introduction tube (5) connected to it.
) along which the signal cable (6) is led to the device that controls the supply of breathing gas.
温度センサーが挿入される導管（１）の呼吸センサー通
路（７）は、呼吸ガスの供給が妨げられず、かつ十分に
患者の呼吸気流に感温部（３）が接触し呼気、吸気によ
る温度差を検知できる断面積を有する必要があり、鼻孔
内に挿入される導管（１）の断面積の１〜４割程度であ
ることが望ましい。The respiratory sensor passageway (7) of the conduit (1) into which the temperature sensor is inserted is such that the supply of respiratory gas is not obstructed, and the temperature sensing part (3) is in sufficient contact with the patient's respiratory airflow, so that the temperature due to expiration and inspiration is maintained. It is necessary to have a cross-sectional area that allows a difference to be detected, and it is desirable that the cross-sectional area is about 10 to 40% of the cross-sectional area of the conduit (1) inserted into the nostril.
また、この呼吸センサー通路（７）の底部側（主管（４
）または、呼吸センサー通路（７）の側壁部に、吸気時
陰圧となった時にだけ外気もしくは呼吸ガスが流入でき
るような極く小さい小孔をあけてもよい。In addition, the bottom side of this breathing sensor passage (7) (main pipe (4)
) Alternatively, a very small hole may be made in the side wall of the respiratory sensor passageway (7) so that outside air or breathing gas can flow in only when negative pressure is achieved during inspiration.
温度センサー（２）の信号ケーブル（６）は、センサー
チューブ（８）に収納されて導入チューブ（５）にそっ
て呼吸ガス供給コントローラーまで導かれる。センサー
チューブ（８）は、導入チューブ（５）に接着一体化し
ても良いし、または第１図に示したように導入チューブ
（５）とセンサーチューブ（８）を８の字型に一体成型
しても良い。The signal cable (6) of the temperature sensor (2) is housed in the sensor tube (8) and guided along the inlet tube (5) to the breathing gas supply controller. The sensor tube (8) may be integrally bonded to the introduction tube (5), or the introduction tube (5) and the sensor tube (8) may be integrally molded in a figure 8 shape as shown in FIG. It's okay.
−ｔａに鼻孔に直接挿入される導管（１）は、異和感の
ないように比較的軟質の材料で作られる。したかって、
第１回のようにこの導管（りの部分に挿入された温度セ
ンサー（２）は、導管（１）が曲げられたりした場合に
はやはり破損することがあり得る。The conduit (1) inserted directly into the nostril is made of a relatively soft material so as not to cause discomfort. I wanted to,
The temperature sensor (2) inserted into this conduit as in the first case may also be damaged if the conduit (1) is bent.
そこで、第２図に示すように、呼吸センサー通路（７）
を主管（４）内にまで伸ばしてＬ字型の底部を設け、主
管（４）の側壁に設けられた開口部を通じて、温度セン
サー（２）の感温部（３）を挿入することによって、比
較的硬い材質で作られた主管（４）中に温度センサー（
２）を設置でき、センサーが破損する危険性をより小さ
くすることができる。Therefore, as shown in Figure 2, the respiratory sensor passage (7)
By extending into the main pipe (4) and providing an L-shaped bottom part, and inserting the temperature sensing part (3) of the temperature sensor (2) through the opening provided in the side wall of the main pipe (4), A temperature sensor (
2) can be installed, and the risk of sensor damage can be further reduced.
さらに、第３図に示すように、導管（１）内の呼吸セン
サー通路（７）を伸ばして主管（４）内の一部にも通路
を設けると共に、導入チューブ（５）内にも隔壁で仕切
られた、主管（４）末端部の呼吸センサー通路（７）と
同一形状の通路を設ける事によって、導入チューブ（５
）の内腔を通して温度センサー（２）を挿入し、主管（
４）内に設置することができる。また、信号ケーブル（
６）を導入チューブ（５）の内腔に配することが・でき
、好都合である。Furthermore, as shown in Fig. 3, the respiratory sensor passage (7) in the conduit (1) is extended to provide a passage in a part of the main pipe (4), and a partition is also provided in the introduction tube (5). By providing a partitioned passageway with the same shape as the respiratory sensor passageway (7) at the end of the main tube (4), the introduction tube (5
), insert the temperature sensor (2) through the lumen of the main pipe (
4) Can be installed within. In addition, the signal cable (
6) can be conveniently placed in the lumen of the introduction tube (5).
例
第２図および第３図の朝ツ場合でもやはり、呼吸センサ
ー通路（７）の底部側を気密的に封鎖するか、あるいは
、呼吸センサー通路の側壁部もしくは導入チューブ（５
）内の呼吸センサーの通路側壁部に、吸気時陰圧となっ
た時にだけ外気もしくは呼吸ガスが流入できるような掻
く小さい小孔をあけてもよいことは勿論である。また、
温度センサーとしては、信号ケーブルが１本のチューブ
内に収納された力与−テル型の温度センサーでもよ（、
図のような信号ケーブルがまとまっていない型のもので
あっても何ら差しつかえはない。Example In the morning test of FIGS. 2 and 3, the bottom side of the respiratory sensor passageway (7) is also hermetically sealed, or the side wall of the respiratory sensor passageway or the introduction tube (5
Of course, a small hole may be made in the side wall of the passageway of the respiratory sensor in the chamber ( ) so that outside air or breathing gas can flow in only when negative pressure occurs during inspiration. Also,
As a temperature sensor, a power-tele type temperature sensor with a signal cable housed in a single tube may also be used.
There is no problem even if the signal cable is not bundled as shown in the figure.
以上の実施例では、一方側の呼吸センサー通路内にのみ
温度センサーを設置したが、もちろんもう一方側にも設
置して２つの温度センサーを用いる方法も可能である。In the above embodiment, the temperature sensor was installed only in the breathing sensor passage on one side, but of course it is also possible to install it on the other side and use two temperature sensors.
また、導管についても両側の鼻孔に挿入せず、片側の鼻
孔に挿入するような場合でも、本発明は、何ら支障な〈
実施することができる。Further, even if the conduit is inserted into one nostril instead of both nostrils, the present invention will not cause any trouble.
It can be implemented.
本発明は、主として開放型鼻カニューラを用いて酸素等
の呼吸ガスを供給するシステムにおいて、呼吸を検知す
るセンサーを鼻カニューラに内蔵したにもかかわらず、
誤動作を生ずることがなく、患者の呼吸に同調して確実
に呼吸ガスを供給することができ、呼吸を検知するセン
サーを別に装着する必要がなく、従来の鼻カニューラと
全く同じ感覚で快適かつ経済的な呼吸同調式の酸素療法
等を行うことができ、センサー自体の故障、破損等も極
力少なくすることができるものであり、医療産業上非常
に有益である。The present invention is a system that mainly uses an open nasal cannula to supply breathing gas such as oxygen, and although a sensor for detecting breathing is built into the nasal cannula,
It does not cause malfunctions, can reliably supply breathing gas in synchronization with the patient's breathing, does not require a separate sensor to detect breathing, and is comfortable and economical with exactly the same feel as a conventional nasal cannula. It is possible to perform breathing synchronized oxygen therapy, etc., and to minimize failures and damage to the sensor itself, which is extremely useful in the medical industry.
第１図〜第３図は、本発明の一実施例となる鼻カニュー
ラの構造を示す図で、いずれも、（ａ）は鼻孔挿入部の
断面図、（ロ）は呼吸センサー通路を設けた導管および
温度センサ一部の上面図、（Ｃ）は各図（ａ）のＡ−Ａ
’ 断面図である。Figures 1 to 3 are diagrams showing the structure of a nasal cannula according to an embodiment of the present invention, in which (a) is a cross-sectional view of the nostril insertion part, and (b) is a cross-sectional view of the nostril insertion part. Top view of conduit and part of temperature sensor, (C) is A-A in each figure (a)
' This is a cross-sectional view.
Claims (6)
孔挿入部、および該鼻孔挿入部に接続され呼吸ガスを導
くための導入チューブから基本的に構成される鼻カニュ
ーラにおいて、導管の内腔管路を隔壁によって２個の通
路に分け、その一方より始まる通路（呼吸センサー通路
）内に呼吸を検知するセンサーを配設したことを特徴と
する鼻カニューラ。(1) A nasal cannula basically consists of a nostril insertion part consisting of one or two conduits and one main pipe, and an introduction tube connected to the nostril insertion part for guiding respiratory gas. A nasal cannula characterized in that a lumen channel is divided into two passages by a partition wall, and a sensor for detecting respiration is disposed in the passage (respiration sensor passage) starting from one of the passages.
設けられた開口部を通じて、呼吸センサー通路内に挿入
されていることを特徴とする、特許請求の範囲第１項記
載の鼻カニューラ。(2) The nasal cannula according to claim 1, wherein the sensor is inserted into the respiratory sensor passageway through an opening provided in a side wall of the respiratory sensor passageway portion of the conduit.
側壁に設けられた開口部を通じて、呼吸センサー通路内
に挿入されていることを特徴とする、特許請求の範囲第
１項記載の鼻カニューラ。(3) The nasal cannula according to claim 1, wherein the sensor is inserted into the respiratory sensor passageway through an opening provided in the side wall of the main tube adjacent to the respiratory sensor passageway. .
けられた通路を通じて、呼吸センサー通路内に挿入され
ていることを特徴とする、特許請求の範囲第１項記載の
鼻カニューラ。(4) The nasal cannula according to claim 1, wherein the sensor is inserted into the respiratory sensor passage through a passage partitioned by a septum and provided in the introduction tube.
れていることを特徴とする、特許請求の範囲第１項及至
第４項のいずれかに記載の鼻カニューラ(5) The nasal cannula according to any one of claims 1 to 4, characterized in that the respiratory sensor passage is hermetically sealed on the bottom side thereof.
ューブ内に設けられた呼吸センサーの通路側壁部に設け
られた小孔を通じて、外気もしくは呼吸ガスに連通して
いことを特徴とする、特許請求の範囲第１項及至第４項
のいずれかに記載の鼻カニューラ。(6) The breathing sensor passage communicates with the outside air or breathing gas through a small hole provided in its side wall or in the side wall of the breathing sensor passage provided in the introduction tube. The nasal cannula according to any one of Items 1 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30825086A JPS63161973A (en) | 1986-12-26 | 1986-12-26 | Nose cannula |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30825086A JPS63161973A (en) | 1986-12-26 | 1986-12-26 | Nose cannula |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63161973A true JPS63161973A (en) | 1988-07-05 |
| JPH0247229B2 JPH0247229B2 (en) | 1990-10-18 |
Family
ID=17978746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30825086A Granted JPS63161973A (en) | 1986-12-26 | 1986-12-26 | Nose cannula |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63161973A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011143021A (en) * | 2010-01-13 | 2011-07-28 | Terumo Corp | Cannula for sensing temperature and oxygen concentrator |
| JP2013524989A (en) * | 2010-04-27 | 2013-06-20 | フィッシャー アンド ペイケル ヘルスケア リミテッド | Device for supplying gas to a patient |
| JP2020182865A (en) * | 2014-06-03 | 2020-11-12 | フィッシャー アンド ペイケル ヘルスケア リミテッド | Flow mixers for respiratory therapy systems |
| US11801360B2 (en) | 2013-09-13 | 2023-10-31 | Fisher & Paykel Healthcare Limited | Connections for humidification system |
| US11878093B2 (en) | 2012-04-27 | 2024-01-23 | Fisher & Paykel Healthcare Limited | Usability features for respiratory humidification system |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5977864A (en) * | 1982-07-13 | 1984-05-04 | コンパニ−・フランセ−ズ・ド・プロデユイ・オクシジエ−ヌ | Apparatus for treating breathing paresis of patient |
-
1986
- 1986-12-26 JP JP30825086A patent/JPS63161973A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5977864A (en) * | 1982-07-13 | 1984-05-04 | コンパニ−・フランセ−ズ・ド・プロデユイ・オクシジエ−ヌ | Apparatus for treating breathing paresis of patient |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011143021A (en) * | 2010-01-13 | 2011-07-28 | Terumo Corp | Cannula for sensing temperature and oxygen concentrator |
| JP2013524989A (en) * | 2010-04-27 | 2013-06-20 | フィッシャー アンド ペイケル ヘルスケア リミテッド | Device for supplying gas to a patient |
| JP2017012833A (en) * | 2010-04-27 | 2017-01-19 | フィッシャー アンド ペイケル ヘルスケア リミテッド | Device for supplying gas to patient |
| US9572951B2 (en) | 2010-04-27 | 2017-02-21 | Fisher & Paykel Healthcare Limited | Apparatus for supplying gases to a patient |
| US10744294B2 (en) | 2010-04-27 | 2020-08-18 | Fisher & Paykel Healthcare Limited | Apparatus for supplying gases to a patient |
| JP2021098029A (en) * | 2010-04-27 | 2021-07-01 | フィッシャー アンド ペイケル ヘルスケア リミテッド | Apparatus for supplying gases to patient |
| US11730913B2 (en) | 2010-04-27 | 2023-08-22 | Fisher & Paykel Healthcare Limited | Apparatus for supplying gases to a patient |
| US11878093B2 (en) | 2012-04-27 | 2024-01-23 | Fisher & Paykel Healthcare Limited | Usability features for respiratory humidification system |
| US11801360B2 (en) | 2013-09-13 | 2023-10-31 | Fisher & Paykel Healthcare Limited | Connections for humidification system |
| JP2020182865A (en) * | 2014-06-03 | 2020-11-12 | フィッシャー アンド ペイケル ヘルスケア リミテッド | Flow mixers for respiratory therapy systems |
| US11712536B2 (en) | 2014-06-03 | 2023-08-01 | Fisher & Paykel Healthcare Limited | Flow mixers for respiratory therapy systems |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0247229B2 (en) | 1990-10-18 |
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