JP2000042110A - Vent line for respiratory device - Google Patents
Vent line for respiratory deviceInfo
- Publication number
- JP2000042110A JP2000042110A JP10216317A JP21631798A JP2000042110A JP 2000042110 A JP2000042110 A JP 2000042110A JP 10216317 A JP10216317 A JP 10216317A JP 21631798 A JP21631798 A JP 21631798A JP 2000042110 A JP2000042110 A JP 2000042110A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- tube
- ventilation
- coaxial
- sectional area
- 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.)
- Pending
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- Respiratory Apparatuses And Protective Means (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、麻酔ガス供給装置
に代表される呼吸装置の通気管路に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ventilation line of a respiratory device represented by an anesthetic gas supply device.
【０００２】[0002]
【従来の技術】周知のとおり、ある種のガスを投与する
ことにより患者の呼吸器系に影響を与えるための用具と
して、酸素供給装置を含む各種の呼吸装置が使用される
が、その一例として麻酔ガス供給装置がある。以下、呼
吸装置を、麻酔ガス供給装置を例にとって説明する。麻
酔ガス供給装置は、麻酔薬と酸素の混合ガス（以下この
混合ガスのことを麻酔ガスという）を人体に供給するも
のであるが、この装置は、通常、麻酔ガス供給部と通気
管路とからなっている。一般に、通気管路としての役割
を持っているものとして、患者接続部に用いられる通常
Ｙピースと呼ばれる部品がある。実際の形状としては、
文字どおりのＹ字タイプ、吸気呼気の導管への接続端を
平行にしたパラレルタイプ、さらに、この平行部が回転
するスイーベルタイプがある。従来、この部品の患者側
に、呼吸マスクや気管内チューブ、気管切開チューブを
接続して用いることが一般的であった。また、一方、次
のような通気管路も用いられている。図３は通気管路の
一例（特公昭５７−３５６６８で提供されたもの）を示
している。この図に示す通気管路１は、外管２および内
管３の二重管と、外管２および内管３を麻酔ガス供給部
の吸気管および呼気管に連結する連結管４とから概略構
成されている。外管２の一端には患者接続端５が取り付
けられ、内管３の一端は自由端として患者接続端５の内
側近傍に位置し、連結管４には、外管取付部６、内管取
付部７、外管連通孔８および内管連通孔９が設けられて
いる。外管２の他端の端部には外管接続部１０が固着さ
れていて、この外管接続部１０および内管３の他端はそ
れぞれ外管取付部６、内管取付部７に取り付けられてい
る。ここで前記外管連通孔８は、内管３の配置された本
通路４ａに対して直交する向きに形成されている。した
がって、後述するように、内管３に吸気管を接続し外管
２に呼気管を接続した場合、連結管４において、吸気通
路１１は曲げられることがないが、呼気通路１２は直角
に曲げられる。2. Description of the Related Art As is well known, various respirators including an oxygen supply device are used as tools for influencing the respiratory system of a patient by administering a certain kind of gas. There is an anesthetic gas supply device. Hereinafter, the respiratory apparatus will be described using an anesthetic gas supply apparatus as an example. An anesthetic gas supply device supplies a mixed gas of an anesthetic and oxygen (hereinafter, this mixed gas is referred to as an anesthetic gas) to the human body. Consists of Generally, there is a part called a Y-piece used for a patient connection part, which has a role as a ventilation pipe. As the actual shape,
There are a literal Y-shaped type, a parallel type in which the connection end of the inspiratory expiration to the conduit is parallel, and a swivel type in which this parallel portion rotates. Conventionally, a respiratory mask, an endotracheal tube, and a tracheostomy tube are generally connected to the patient side of this part. On the other hand, the following vent pipes are also used. FIG. 3 shows an example of the ventilation pipe (provided in Japanese Patent Publication No. 57-35668). The ventilation conduit 1 shown in this figure is schematically composed of a double pipe of an outer pipe 2 and an inner pipe 3 and a connecting pipe 4 for connecting the outer pipe 2 and the inner pipe 3 to an inhalation pipe and an expiration pipe of an anesthetic gas supply unit. It is configured. A patient connection end 5 is attached to one end of the outer tube 2, one end of the inner tube 3 is located near the inside of the patient connection end 5 as a free end, and the connection tube 4 has an outer tube attachment portion 6, an inner tube attachment A portion 7, an outer pipe communication hole 8 and an inner pipe communication hole 9 are provided. An outer tube connecting portion 10 is fixed to the other end of the outer tube 2, and the other ends of the outer tube connecting portion 10 and the inner tube 3 are attached to the outer tube attaching portion 6 and the inner tube attaching portion 7, respectively. Have been. Here, the outer pipe communication hole 8 is formed in a direction orthogonal to the main passage 4a in which the inner pipe 3 is arranged. Accordingly, as described later, when the inhalation pipe is connected to the inner pipe 3 and the exhalation pipe is connected to the outer pipe 2, the inhalation passage 11 is not bent in the connecting pipe 4, but the exhalation passage 12 is bent at a right angle. Can be
【０００３】次に、麻酔ガス供給部について説明する
と、図４は麻酔ガス供給装置の全体構成を示す図であ
る。この図に示す麻酔ガス供給部２０は、麻酔ガス発生
部２１と、炭酸ガス吸収器２２とを有して構成され、前
述の通気管路１を接続して用いる。麻酔ガス発生部２１
は供給口２３を備え、炭酸ガス吸収器２２は流入口２４
および流出口２５とを備え内部には炭酸ガス吸収剤２６
が充填されており、流出口２５は麻酔ガス発生部２１の
供給口２３に連通管２７により連結されている。２８は
蛇管部で、吸気管２９と呼気管３０とからなり、吸気管
２９の一端は通気管路１の連結管４において内管３に接
続され、同他端は吸気弁３９を介して炭酸ガス吸収器２
２の流出口２５と麻酔ガス発生部２１の供給口２３に接
続されている連通管２７との連通部に接続されており、
呼気管３０の一端は通気管路１の連結管４において外管
２に接続され同他端は呼気弁３５を介して炭酸ガス吸収
器２２の流入口２４に接続されている。ここで、前述の
通気管路１の説明において述べた連結管４の構造からも
わかるように、通気管路１の連結管４に吸気管２９と呼
気管３０とは互いに直交する方向から接続される（図３
参照）。呼気管３０の一端には通常切換弁を介して呼吸
補助用バック３１又は人工呼吸器が取り付けられ、呼吸
補助用バック３１の上端にはポップオフバルブ３２が設
けられ、人工呼吸器又はポップオフバルブ３２から余剰
ガスは排出される。３９は吸気弁、３５は呼気弁であ
り、これら二つの弁の作用によりガスの流れは図中の矢
印のごとく一方向に方向づけられる。Next, the anesthetic gas supply section will be described. FIG. 4 is a diagram showing the overall configuration of an anesthetic gas supply device. The anesthesia gas supply unit 20 shown in this figure is configured to include an anesthesia gas generation unit 21 and a carbon dioxide gas absorber 22, and is used by connecting the above-mentioned ventilation pipe 1. Anesthetic gas generator 21
Is provided with a supply port 23, and the carbon dioxide gas absorber 22 is provided with an inflow port 24.
And an outlet 25 and a carbon dioxide absorbent 26
Is filled, and the outlet 25 is connected to the supply port 23 of the anesthetic gas generator 21 by a communication pipe 27. Reference numeral 28 denotes a serpentine pipe portion, which is composed of an intake pipe 29 and an expiration pipe 30. One end of the intake pipe 29 is connected to the inner pipe 3 at the connection pipe 4 of the ventilation pipe 1, and the other end is carbonated through an intake valve 39. Gas absorber 2
2 is connected to a communication part between the outflow port 25 and a communication pipe 27 connected to the supply port 23 of the anesthetic gas generation part 21;
One end of the exhalation tube 30 is connected to the outer tube 2 at the connecting pipe 4 of the ventilation pipe line 1, and the other end is connected to the inflow port 24 of the carbon dioxide gas absorber 22 via an exhalation valve 35. Here, as can be seen from the structure of the connection pipe 4 described in the description of the ventilation pipe 1, the intake pipe 29 and the expiration pipe 30 are connected to the connection pipe 4 of the ventilation pipe 1 from directions orthogonal to each other. (Fig. 3
reference). A breathing assist bag 31 or a ventilator is attached to one end of the expiratory tube 30 through a normal switching valve, and a pop-off valve 32 is provided at an upper end of the breathing assist bag 31 to provide a ventilator or a pop-off valve. Excess gas is discharged from 32. Reference numeral 39 denotes an intake valve, and reference numeral 35 denotes an exhalation valve. By the action of these two valves, the gas flow is directed in one direction as indicated by the arrow in the figure.
【０００４】麻酔ガス発生部２１から発生した麻酔ガス
は連通管２７から吸気管２９、内管３を吸気通路１１と
して患者接続端５に達し患者の人体に送られる。人体か
らの呼気は外管２と内管３との間の通路、呼気管３０を
呼気通路１２としてポップオフバルブ３２でその一部が
排出された後、炭酸ガス吸収器２２に入り、ここで炭酸
ガスのみが吸収され、残りの麻酔ガスに不足分のガスが
麻酔ガス発生部２１から供給され、再び上述の通路を通
って人体に送られる。Anesthesia gas generated from the anesthesia gas generator 21 reaches the patient connection end 5 from the communication pipe 27 through the suction pipe 29 and the inner pipe 3 as the suction passage 11 and is sent to the patient's body. Expiration from the human body is partially discharged by the pop-off valve 32 after the passage between the outer tube 2 and the inner tube 3 and the expiration tube 30 as the expiration passage 12, and then enters the carbon dioxide absorber 22, where the expiration is performed. Only the carbon dioxide gas is absorbed, and the remaining anesthetic gas is supplied with an insufficient gas from the anesthetic gas generation unit 21 and is sent again to the human body through the above-described passage.
【０００５】[0005]
【発明が解決しようとする課題】ところで、Ｙピースの
ような部品に呼吸マスクや気管内チューブ、気管切開チ
ューブを接続して用いる場合には、患者顔面付近まで吸
気呼気２本の導管（１本の外径は通常２０数ｍｍ〜３０
ｍｍ）と上記部品が接近し、顔面付近の手術を行うとき
やその他のときにおいても視野の妨げや操作性の劣化な
どを来すという問題があった。また、一方、通気管路１
では、連結管４において、内管３へ吸気管２９から流入
する麻酔ガスは吸気通路１１の方向が急激に変化するこ
とがないため大きな流路抵抗を受けることはないが、外
管２と内管３の間の通路から呼気管３０へ排出される呼
気は呼気通路１２の方向が直角に曲げられるため大きな
流路抵抗を受けるという問題があった。また、連結管４
における外管連通孔８と内管連通孔９との配置から、吸
気管２９と呼気管３０とをたがいに直交する方向から接
続しなければならず、装置全体として設置するために広
いスペースが必要とされ、さらに、吸気管２９と呼気管
３０との取り扱いにも不便をきたすという問題もあっ
た。When a respiratory mask, an endotracheal tube, or a tracheostomy tube is connected to a part such as a Y-piece for use, two conduits (one for inhalation and expiration) are provided near the patient's face. Outside diameter is usually 20 mm to 30 mm
mm) and the above-mentioned parts approach each other, causing problems such as obstruction of the visual field and deterioration of operability even when performing surgery near the face or at other times. On the other hand, the vent pipe 1
In the connection pipe 4, the anesthetic gas flowing into the inner pipe 3 from the suction pipe 29 does not receive a large flow resistance because the direction of the suction passage 11 does not change suddenly. There is a problem that the expiration discharged from the passage between the tubes 3 to the expiration tube 30 receives a large flow resistance because the direction of the expiration passage 12 is bent at a right angle. In addition, connecting pipe 4
Due to the arrangement of the outer pipe communication hole 8 and the inner pipe communication hole 9 in the above, the inhalation pipe 29 and the expiration pipe 30 must be connected from directions orthogonal to each other, and a large space is required for installation as a whole apparatus. Further, there is a problem that handling of the inhalation tube 29 and the expiration tube 30 is inconvenient.
【０００６】本発明は、前記の事情に鑑みてなされたも
のであって、顔面付近の手術の場合やその他の場合でも
視野の妨げや操作性の劣化を抑えて用いることができ、
通気管路の内部を流動するガスに過大な流路抵抗を与え
ることがなく、かつ、吸気管および呼気管をコンパクト
に接続することができ、これら吸気管および呼気管の取
り扱いを容易なものとすることができる呼吸装置の通気
管路を提供することを目的とする。SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and can be used in the case of surgery near the face or in other cases while suppressing the obstruction of the visual field and the deterioration of operability.
It is possible to connect the intake pipe and the expiratory pipe compactly without giving excessive flow resistance to the gas flowing inside the ventilation pipe, and to make the handling of the intake pipe and the expiratory pipe easy. It is an object of the present invention to provide a ventilation line for a respiratory apparatus which can be operated.
【０００７】[0007]
【課題を解決するための手段】本発明の請求項１記載の
呼吸装置の通気管路によれば、機器側接合のための呼気
と吸気の独立した二軸の蛇管と患者接続側の呼気管と吸
気管を内外に配置して構成された二重管とを結ぶ呼吸装
置の通気管路であって、外管内部に内管を同軸的に配置
して、内管内を第一の流路、外管内面と内管外面との間
の空間が第二の流路として形成された患者接続側の同軸
部と、この同軸部に、この同軸部から分岐し、該同軸部
の軸線と平行な軸線を持って形成された第一、第二の管
を有する分岐部とを備えてなり、前記同軸部および分岐
部内には、前記内管を第一の管内に連通させるととも
に、前記流路を第二の管内に連通させて、これらの管を
区画する区画壁部が設けられ、前記内管の断面領域の一
部と前記第一の管の断面領域の一部、および前記内管の
外側と外管の内側の間に形成される流路の断面領域の一
部と、前記第二の管の断面領域の一部が、それぞれ前記
各軸線方向から見たときにラップしていることを特徴と
する。According to the ventilating line of the respiratory apparatus according to the first aspect of the present invention, a biaxial flexible tube for exhalation and inspiration for device-side connection and an exhalation tube on the patient connection side are provided. And a double pipe configured by arranging an intake pipe inside and outside, a ventilation pipe of a breathing apparatus, wherein the inner pipe is coaxially arranged inside the outer pipe, and a first flow path is formed in the inner pipe. The space between the inner surface of the outer tube and the outer surface of the inner tube is formed as a second flow path, and a coaxial portion on the patient connection side, the coaxial portion is branched from the coaxial portion, and is parallel to the axis of the coaxial portion. And a branch portion having first and second pipes formed with an appropriate axis.In the coaxial portion and the branch portion, the inner pipe communicates with the first pipe, and the flow path Is communicated with the second pipe, a partition wall section for partitioning these pipes is provided, and a part of a cross-sectional area of the inner pipe and a part of the first pipe are provided. A part of the surface area, a part of a cross-sectional area of the flow path formed between the outside of the inner pipe and the inside of the outer pipe, and a part of the cross-sectional area of the second pipe, respectively, each of the axes It is characterized by being wrapped when viewed from the direction.
【０００８】この呼吸装置の通気管路においては、この
通気管路の患者接続側を同軸構造とし吸気と呼気を区別
したまま、大小２本の導管によりさらに適当な距離を延
長した後、呼吸マスクや気管内チューブ、気管切開チュ
ーブに接続する構造とすることによって、患者口元付近
に２本の呼吸導管と通気管路が接近することはなく、患
者口元付近は外観上１本の蛇管と患者接続端のみであ
り、視野妨害や操作性劣化が抑えられる。また、この構
成によれば、同軸部による流路と第一の管と第二の管の
流路の各軸線が平行であり、かつ、内管の断面領域の一
部と第一の管の断面領域の一部、および内管の外側と外
管の内側の間に形成される流路の断面領域の一部と、第
二の管の断面領域の一部が、それぞれ各軸線方向から見
たときにラップしているので、それぞれの内部を流れる
ガスは、進路を大きく変更することがなく、スムーズに
流れ、流れに対しての抵抗が少ない。さらに、通気管路
において一対の管が平行して位置し、これら一対の管に
吸気管および呼気管を接続するので、吸気管と呼気管を
平行する方向から接続することができる。In the ventilating line of the respiratory apparatus, the patient connecting side of the venting line has a coaxial structure, and an appropriate distance is further extended by two large and small conduits while distinguishing between inhalation and expiration. And a structure connected to the endotracheal tube and tracheostomy tube, so that the two respiratory conduits and the ventilating line do not come close to the patient's mouth, and the patient's mouth is connected to a single snake tube in appearance. Only at the ends, visual field disturbance and operability deterioration are suppressed. Further, according to this configuration, each axis of the flow path by the coaxial portion and the flow paths of the first pipe and the second pipe are parallel, and a part of the cross-sectional area of the inner pipe and the first pipe A part of the cross-sectional area, a part of the cross-sectional area of the flow path formed between the outside of the inner pipe and the inside of the outer pipe, and a part of the cross-sectional area of the second pipe are respectively viewed from each axial direction. When wrapped, the gas flowing inside each does not change its course largely, flows smoothly, and has little resistance to the flow. Furthermore, since a pair of pipes are located in parallel in the ventilation duct and the inspiratory pipe and the expiratory pipe are connected to the pair of pipes, the inspiratory pipe and the expiratory pipe can be connected from a parallel direction.
【０００９】請求項２記載の呼吸装置の通気管路によれ
ば、請求項１記載の呼吸装置の通気管路において、前記
内管が前記外管の端面より外方へ突出した構成とされて
いることを特徴とする。According to the ventilating line of the respiratory apparatus according to the second aspect, in the ventilating line of the respiratory apparatus according to the first aspect, the inner pipe projects outward from an end face of the outer pipe. It is characterized by being.
【００１０】この呼吸装置の通気管路においては、前記
内管が前記外管の端面より外方へ突出しているので、同
軸部に同軸管を装着することを容易にすると同時に、外
管に透明又は半透明の材質を用いることにより、内管と
この突出部との接続の、例えば、外れかけなどの異常を
外部から発見しやすくしている。[0010] In the ventilation pipe of this respiratory apparatus, since the inner pipe projects outward from the end face of the outer pipe, it is easy to mount the coaxial pipe on the coaxial portion, and at the same time, the outer pipe is transparent. Alternatively, by using a translucent material, it is easy to detect an abnormality such as detachment of the connection between the inner tube and the protruding portion from the outside.
【００１１】[0011]
【発明の実施の形態】以下、本発明の呼吸装置の通気管
路の一実施の形態について、図１、２を参照して説明す
る。なお、ここでは、本発明による通気管路を図４に示
す呼吸装置の麻酔ガス供給部２０に接続した場合の実施
の形態について説明する。図１に示す通気管路４０は、
外管４１および内管４２から構成され、図１には示され
ていない患者接続端に接続される通気管路４３と、麻酔
ガス供給部２０へ接続する吸気管２９、呼気管３０と、
通気管路４３を吸気管２９および呼気管３０に接続する
通気管路４４とから構成されている。通気管路４４は、
外管４５と外管４５の内部に外管４５の端面より外方へ
突出する内管４６を同軸的に配置して、内管４６内を第
一の流路４７、外管４５の内面と内管４６の外面との間
の空間が第二の流路４８として形成された同軸部４９
と、この同軸部４９に、この同軸部４９から分岐し、こ
の同軸部４９の軸線と平行な軸線を持って形成された第
一の管５０と第二の管５１を有する分岐部５２とを備え
ている。また、同軸部４９および分岐部５２内には、内
管４６を第一の管５０内に連通させるとともに、第二の
流路４８を第二の管５１内に連通させて、これらの管５
０、５１を区画する区画壁部５３が設けられている。さ
らに、この通気管路４４において、内管４６の断面領域
の一部と第一の管５０の断面領域の一部、および内管４
６の外側と外管４５の内側の間に形成される流路４８の
断面領域の一部と、第二の管５１の断面領域の一部が、
それぞれ前記各軸線方向から見たときにラップしてい
る。この通気管路４４は、例えば、プラスチック等を素
材として射出成形法により製作され、各部の形状は、例
えば、同軸部４９の前方に突出した内管４６の先端から
二本の管５０、５１の先端までは７８．４ｍｍ、二本の
管５０と５１の先端における両管の中心軸間は２７ｍｍ
の寸法を有する。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a breathing apparatus according to an embodiment of the present invention; FIG. Here, an embodiment in which the ventilation pipe according to the present invention is connected to the anesthetic gas supply unit 20 of the respiratory apparatus shown in FIG. 4 will be described. The ventilation conduit 40 shown in FIG.
A ventilation pipe 43 which is composed of an outer pipe 41 and an inner pipe 42 and is connected to a patient connection end not shown in FIG. 1; an inhalation pipe 29 and an expiration pipe 30 which are connected to the anesthetic gas supply unit 20;
A ventilation conduit 43 connects the ventilation conduit 43 to the intake pipe 29 and the expiration conduit 30. The ventilation pipe 44
An outer tube 45 and an inner tube 46 protruding outward from an end surface of the outer tube 45 are coaxially arranged inside the outer tube 45, and a first flow path 47 and an inner surface of the outer tube 45 are formed inside the inner tube 46. A space between the outer surface of the inner tube 46 and a coaxial portion 49 formed as a second flow path 48
And a branch portion 52 having a first tube 50 and a second tube 51 which are branched from the coaxial portion 49 and have an axis parallel to the axis of the coaxial portion 49. Have. In the coaxial portion 49 and the branch portion 52, the inner pipe 46 is communicated with the first pipe 50, and the second flow path 48 is communicated with the second pipe 51, and these pipes 5 are connected.
A partition wall section 53 that partitions 0 and 51 is provided. Further, in this ventilation pipe 44, a part of the cross-sectional area of the inner pipe 46, a part of the cross-sectional area of the first pipe 50, and the inner pipe 4
Part of the cross-sectional area of the flow path 48 formed between the outside of the inner tube 6 and the inside of the outer pipe 45 and part of the cross-sectional area of the second pipe 51 are:
Each wraps when viewed from each of the axial directions. The ventilation pipe 44 is manufactured by, for example, an injection molding method using plastic or the like as a material, and the shape of each part is, for example, the two pipes 50 and 51 from the tip of the inner pipe 46 protruding forward of the coaxial part 49. 78.4 mm to the tip, 27 mm between the central axes of the two tubes 50 and 51 at the tip
With dimensions of
【００１２】通気管路４０は次のように用いられる。通
気管路４３の外管４１は通気管路４４の外管４５に接続
され、通気管路４３の内管４２は、通気管路４４の同軸
部の内管４６に接続される。外管４１および内管４２か
ら構成される通気管路４３の他端における構成は図２の
ものと同一構成であり、外管４１の他端には患者接続端
５が取り付けられ、内管４２の他端は自由端又は固定端
として患者接続端５の内側近傍に位置し、患者接続端５
の内部には内管４２の先端が必要以上にとび出さないよ
うなストッパーが設けられている。そして、通気管路４
４の第一の管５０には吸気管２９の端部が、もう一方の
第二の管５１には呼気管３０の端部がそれぞれ接続され
る。吸気管２９および呼気管３０の他端側に配置する麻
酔ガス供給部の構成は、従来から用いられているもので
よく、図４に示したように、麻酔ガス発生部２１と、炭
酸ガス吸収器２２と、呼吸補助用バック３１と、吸気弁
３９および呼気弁３５とを接続して構成される。なお、
ここでは通気管路４４によって、吸気管２９を通気管路
４３の内管４２に接続して患者接続端５に麻酔ガスを供
給する吸気通路１１を形成し、呼気管３０を外管４１に
接続して患者接続端５から呼気を排出する呼気通路１２
を形成して用いる場合について説明したが、吸気管２９
を外管４１に接続して吸気通路１１を形成し、呼気管３
０を内管４２に接続して呼気通路１２を形成して用いる
こともでき、適宜使いわければよい。The ventilation pipe 40 is used as follows. The outer pipe 41 of the ventilation pipe 43 is connected to the outer pipe 45 of the ventilation pipe 44, and the inner pipe 42 of the ventilation pipe 43 is connected to the inner pipe 46 of the coaxial part of the ventilation pipe 44. The configuration at the other end of the ventilation pipe 43 composed of the outer pipe 41 and the inner pipe 42 is the same as that of FIG. 2, and the patient connection end 5 is attached to the other end of the outer pipe 41, and the inner pipe 42 Is located near the inside of the patient connection end 5 as a free end or a fixed end.
Is provided with a stopper so that the tip of the inner tube 42 does not protrude more than necessary. And the ventilation pipe 4
The end of the inspiratory tube 29 is connected to the first tube 50 of the fourth, and the end of the expiratory tube 30 is connected to the other second tube 51, respectively. The configuration of the anesthetic gas supply unit disposed on the other end side of the inhalation tube 29 and the expiration tube 30 may be a conventionally used configuration, and as shown in FIG. The device 22, the breathing assist bag 31, the intake valve 39 and the exhalation valve 35 are connected to each other. In addition,
Here, the inspiratory pipe 29 is connected to the inner pipe 42 of the vent pipe 43 by the vent pipe 44 to form the inspiratory path 11 for supplying anesthetic gas to the patient connection end 5, and the expiratory pipe 30 is connected to the outer pipe 41. Expiratory passage 12 for discharging exhaled air from patient connection end 5
The case of forming and using the intake pipe 29 has been described.
Is connected to the outer tube 41 to form the inspiratory passage 11 and the expiratory tube 3
0 can be connected to the inner tube 42 to form the exhalation passage 12 and used.
【００１３】上記のように、通気管路４４の患者接続側
を同軸構造とし吸気と呼気を区別したまま、二重管４３
によりさらに適当な距離を延長した後、呼吸マスクに接
続する構造とすることによって、患者口元付近に２本の
呼吸導管２９、３０と通気管路４４が接近することはな
く、患者口元付近は外観上１本の同軸管と患者接続端の
みであり、視野妨害や操作性劣化が抑えられる。また、
同軸部４９による流路４７、４８と第一の管５０と第二
の管５１の流路の各軸線が平行であり、かつ、内管４６
の断面領域の一部と第一の管５０の断面領域の一部、お
よび内管４６の外側と外管４５の内側の間に形成される
流路の断面領域の一部と、第二の管５１の断面領域の一
部が、それぞれ各軸線方向から見たときにラップしてい
るので、内部を流れる麻酔ガスおよび呼気は、進路を大
きく変更することがなく、大きな流路抵抗を受けること
がない。さらに、通気管路４４においては管５０、５１
が平行して位置し、これら一対の管５０、５１に吸気管
２９および呼気管３０を接続するので、吸気管２９と呼
気管３０を平行する方向から接続することができ、配管
全体がコンパクトにまとまり、吸気管２９と呼気管３０
の取り扱いも容易となる。この点は、特に救急車内等の
狭い場所において呼吸装置を使用する際に極めて有利と
なる。また、通気管路４４はその構造上製作が容易であ
り、従来用いられてきた連通管４に比較して軽量化を図
ることができるのみならず、安価に提供することができ
る。また、同軸部４９の内管４６が外管４５の端面より
外方へ突出しているので、同軸部４９に二重管４３を装
着することが容易であると同時に、外管４１に透明又は
半透明の材質を用いることにより、内管４２とこの突出
部との接続の、例えば、外れかけなどの異常を外部から
発見しやすくすることができる。As described above, the patient connection side of the ventilation line 44 has a coaxial structure, and the inhalation and exhalation are distinguished from each other.
By further extending the proper distance, and connecting to the respiratory mask, the two respiratory conduits 29 and 30 and the ventilation conduit 44 do not approach the vicinity of the patient's mouth, and the appearance near the patient's mouth is There is only one upper coaxial tube and the patient connection end, and visual field obstruction and operability deterioration are suppressed. Also,
The axes of the flow paths 47 and 48 formed by the coaxial portion 49 and the flow paths of the first pipe 50 and the second pipe 51 are parallel to each other, and the inner pipe 46
A part of the cross-sectional area of the first pipe 50 and a part of the cross-sectional area of the flow path formed between the outside of the inner pipe 46 and the inside of the outer pipe 45; Since a part of the cross-sectional area of the tube 51 is wrapped when viewed from each axial direction, the anesthetic gas and exhalation flowing through the inside of the tube 51 do not greatly change the course and receive a large flow resistance. There is no. Further, in the ventilation pipe 44, the pipes 50, 51
Are located in parallel, and the inhalation pipe 29 and the expiration pipe 30 are connected to the pair of pipes 50 and 51, so that the inspiration pipe 29 and the expiration pipe 30 can be connected from a parallel direction, and the entire pipe is compact. United, inhalation tube 29 and expiration tube 30
Is also easy to handle. This is particularly advantageous when using the breathing apparatus in a small place such as in an ambulance. In addition, the ventilation pipe 44 is easy to manufacture due to its structure, and can not only be reduced in weight but also inexpensively provided as compared with the communication pipe 4 conventionally used. Further, since the inner tube 46 of the coaxial portion 49 protrudes outward from the end face of the outer tube 45, it is easy to mount the double tube 43 on the coaxial portion 49, and at the same time, the outer tube 41 is transparent or semi-transparent. By using a transparent material, it is possible to easily detect, for example, an abnormality such as coming off of the connection between the inner tube 42 and the protrusion from the outside.
【００１４】なお、本発明の実施の形態においては、同
軸部の内管が外管の端面より外方に突出している通気管
路としたが、同軸部の内管が外管の端面より外方に突出
していなくてもよい。また、上記実施の形態で用いた呼
吸回路は、二重管部、二軸部、通気管路の３部分から構
成されているが、そのうちの通気管路の部分が小型軽量
化可能な設計であることによって、二軸と二重管の接続
部である通気管路が患者寄りでも器械寄りでも自由に設
定可能となる。すなわち、二重管部と二軸部各長さを自
由に設定することが可能となる。In the embodiment of the present invention, the inner pipe of the coaxial portion is a ventilation pipe projecting outward from the end face of the outer pipe. However, the inner pipe of the coaxial section is located outside the end face of the outer pipe. It does not have to protrude in the direction. In addition, the breathing circuit used in the above embodiment is composed of three parts, a double pipe part, a biaxial part, and a ventilation pipe. Of these, the ventilation pipe part is designed to be small and light. This makes it possible to freely set the ventilation conduit, which is the connection portion between the two shafts and the double tube, closer to the patient or closer to the instrument. That is, it is possible to freely set the respective lengths of the double pipe portion and the biaxial portion.
【００１５】[0015]
【発明の効果】上記に示したように、請求項１記載の通
気管路によれば、この通気管路の患者接続側を同軸構造
とし吸気と呼気を区別したまま、大小２本の導管により
さらに適当な距離を延長した後、呼吸マスクや気管内チ
ューブや気管切開チューブに接続する構造とすることに
よって、患者口元付近に２本の呼吸導管と通気管路が接
近することはなく、患者口元付近は外観上１本の蛇管と
患者接続端のみであり、視野妨害や操作性劣化を抑える
ことができるという効果が得られる。また、同軸部によ
る流路と第一の管と第二の管の流路の各軸線が平行であ
り、かつ、内管の断面領域の一部と第一の管の断面領域
の一部、および内管の外側と外管の内側の間に形成され
る流路の断面領域の一部と、第二の管の断面領域の一部
が、それぞれ各軸線方向から見たときにラップしている
ので、内部を流れるガスは、進路を大きく変更すること
がなく、大きな流路抵抗を受けることがないという効果
が得られる。また、通気管路において第一の管と第二の
管が平行して位置し、これら二本の管に吸気管および呼
気管を接続するので、吸気管と呼気管を平行する方向か
ら接続することができ、配管全体がコンパクトにまとま
り、吸気管と呼気管の取り扱いも容易となるという効果
が得られる。請求項２記載の通気管路によれば、同軸部
の内管が外管の端面より外方へ突出しているので、同軸
部に二重管を装着することが容易であるという効果が得
られると同時に、外管に透明又は半透明の材質を用いる
ことにより、内管とこの突出部との接続の、例えば、外
れかけなどの異常を外部から発見しやすくしている。As described above, according to the ventilating line of the first aspect, the patient connecting side of the venting line has a coaxial structure, and two large and small conduits are used while inhaling and exhaling are distinguished. Furthermore, by extending the appropriate distance and connecting it to the respiratory mask, endotracheal tube, or tracheostomy tube, the two respiratory conduits and the ventilating line do not come close to the patient's mouth. The vicinity is only one flexible tube and the patient connection end in appearance, and the effect of suppressing visual field disturbance and deterioration of operability can be obtained. Further, each axis of the flow path of the coaxial portion and the flow path of the first pipe and the flow path of the second pipe are parallel, and a part of the cross-sectional area of the inner pipe and a part of the cross-sectional area of the first pipe, A part of the cross-sectional area of the flow path formed between the outer side of the inner pipe and the inner side of the outer pipe, and a part of the cross-sectional area of the second pipe are wrapped when viewed from each axial direction. Therefore, there is obtained an effect that the gas flowing inside does not largely change the course and does not receive a large flow resistance. In addition, since the first pipe and the second pipe are located in parallel in the ventilation conduit and connect the inspiratory pipe and the expiratory pipe to these two pipes, the inspiratory pipe and the expiratory pipe are connected in a parallel direction. This makes it possible to obtain an effect that the entire pipe is compacted and the inhalation pipe and the expiration pipe are easily handled. According to the vent pipe according to the second aspect, since the inner pipe of the coaxial portion projects outward from the end face of the outer pipe, an effect is obtained that the double pipe can be easily mounted on the coaxial section. At the same time, by using a transparent or translucent material for the outer tube, it is easy to find out, for example, an abnormality such as coming off of the connection between the inner tube and the protrusion from the outside.
【図１】 本発明の実施の形態を示す図であり、呼吸装
置の通気管路の断面図である。FIG. 1 is a view showing an embodiment of the present invention, and is a cross-sectional view of a ventilation pipe of a breathing apparatus.
【図２】 本発明の実施の形態を示す図であり、呼吸装
置の通気管路の軸に対する断面図である。FIG. 2 is a view showing an embodiment of the present invention, and is a cross-sectional view taken along an axis of a ventilation pipe of a respiratory apparatus.
【図３】 従来の通気管路の断面図である。FIG. 3 is a cross-sectional view of a conventional ventilation pipe.
【図４】 通気管路の使用した麻酔ガス供給装置の概略
構成図である。FIG. 4 is a schematic configuration diagram of an anesthesia gas supply device using a ventilation pipe.
【符号の説明】 ４４ 通気管路 ４５ 外管 ４６ 内管 ４７ 第一の流路 ４８ 第二の流路 ４９ 同軸部 ５０ 第一の管 ５１ 第二の管 ５２ 分岐部[Explanation of Signs] 44 Ventilation conduit 45 Outer pipe 46 Inner pipe 47 First flow path 48 Second flow path 49 Coaxial part 50 First pipe 51 Second pipe 52 Branch part
Claims (2)
た二軸の蛇管と患者接続側の呼気管と吸気管を内外に配
置して構成された二重管とを結ぶ呼吸装置の通気管路で
あって、 外管内部に内管を同軸的に配置して、内管内を第一の流
路、外管内面と内管外面との間の空間が第二の流路とし
て形成された患者接続側の同軸部と、この同軸部に、こ
の同軸部から分岐し、該同軸部の軸線と平行な軸線を持
って形成された第一、第二の管を有する分岐部とを備え
てなり、前記同軸部および分岐部内には、前記内管を第
一の管内に連通させるとともに、前記流路を第二の管内
に連通させて、 これらの管を区画する区画壁部が設けられ、前記内管の
断面領域の一部と前記第一の管の断面領域の一部、およ
び前記内管の外側と外管の内側の間に形成される流路の
断面領域の一部と、前記第二の管の断面領域の一部が、
それぞれ前記各軸線方向から見たときにラップしている
ことを特徴とする呼吸装置の通気管路。1. A breathing apparatus for connecting a biaxial flexible tube for exhalation and inspiration for device-side joining, and a double tube formed by arranging an exhalation tube and an inhalation tube on the patient connection side inside and outside. In the airway, the inner tube is coaxially arranged inside the outer tube, a first flow path in the inner tube, and a space between the inner surface of the outer tube and the outer surface of the inner tube is formed as a second flow passage. A coaxial portion on the patient connection side, and a bifurcated portion having first and second tubes which are branched from the coaxial portion and have an axis parallel to the axis of the coaxial portion. In the coaxial portion and the branch portion, a partition wall portion for partitioning these tubes is provided by connecting the inner tube to the first tube and connecting the flow path to the second tube. Is formed between a part of the cross-sectional area of the inner pipe and a part of the cross-sectional area of the first pipe, and between the outside of the inner pipe and the inside of the outer pipe. A portion of the cross-sectional area of the road, a part of the cross-sectional area of said second tube,
A ventilation pipe for a respiratory apparatus, wherein the ventilation pipe is wrapped when viewed from each of the axial directions.
いて、前記内管が前記外管の端面より外方へ突出した構
成とされていることを特徴とする呼吸装置の通気管路。2. The ventilating line for a respiratory apparatus according to claim 1, wherein said inner tube projects outward from an end surface of said outer tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10216317A JP2000042110A (en) | 1998-07-30 | 1998-07-30 | Vent line for respiratory device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10216317A JP2000042110A (en) | 1998-07-30 | 1998-07-30 | Vent line for respiratory device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000042110A true JP2000042110A (en) | 2000-02-15 |
Family
ID=16686642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10216317A Pending JP2000042110A (en) | 1998-07-30 | 1998-07-30 | Vent line for respiratory device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000042110A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014079640A (en) * | 2003-02-21 | 2014-05-08 | Resmed Ltd | Nasal interface |
| KR101492869B1 (en) | 2007-04-02 | 2015-02-16 | 조르주 부씨낙 | Respiratory Assembly |
| CN113633861A (en) * | 2021-08-04 | 2021-11-12 | 北京鸣达舒医疗科技有限公司 | Bidirectional ventilation structure and oxygen supply device capable of adjusting oxygen inhalation concentration |
-
1998
- 1998-07-30 JP JP10216317A patent/JP2000042110A/en active Pending
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| US11000664B2 (en) | 2003-02-21 | 2021-05-11 | ResMed Pty Ltd | Mask assembly |
| US11090455B2 (en) | 2003-02-21 | 2021-08-17 | ResMed Pty Ltd | Nasal assembly |
| US8985117B2 (en) | 2003-02-21 | 2015-03-24 | Resmed Limited | Nasal assembly |
| US10518058B2 (en) | 2003-02-21 | 2019-12-31 | ResMed Pty Ltd | Mask assembly |
| US10556084B2 (en) | 2003-02-21 | 2020-02-11 | ResMed Pty Ltd | Mask assembly |
| US10561813B2 (en) | 2003-02-21 | 2020-02-18 | Resmed Pty Ltd. | Mask assembly |
| US11583652B2 (en) | 2003-02-21 | 2023-02-21 | ResMed Pty Ltd | Mask assembly |
| US11077276B2 (en) | 2003-02-21 | 2021-08-03 | ResMed Pty Ltd | Mask assembly |
| JP2014079640A (en) * | 2003-02-21 | 2014-05-08 | Resmed Ltd | Nasal interface |
| US11103666B2 (en) | 2003-02-21 | 2021-08-31 | ResMed Pty Ltd | Mask assembly |
| US11497876B2 (en) | 2003-02-21 | 2022-11-15 | ResMed Pty Ltd | Mask assembly |
| US11420004B2 (en) | 2003-02-21 | 2022-08-23 | ResMed Pty Ltd | Mask assembly |
| US11433207B2 (en) | 2003-02-21 | 2022-09-06 | ResMed Pty Ltd | Mask assembly |
| KR101492869B1 (en) | 2007-04-02 | 2015-02-16 | 조르주 부씨낙 | Respiratory Assembly |
| CN113633861A (en) * | 2021-08-04 | 2021-11-12 | 北京鸣达舒医疗科技有限公司 | Bidirectional ventilation structure and oxygen supply device capable of adjusting oxygen inhalation concentration |
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