JP5159546B2

JP5159546B2 - Pressure regulator for ventilator and ventilator using such pressure regulator

Info

Publication number: JP5159546B2
Application number: JP2008256546A
Authority: JP
Inventors: 豊関口; 敏夫大友; 一雄松原
Original assignee: Atom Medical Corp
Current assignee: Atom Medical Corp
Priority date: 2008-05-07
Filing date: 2008-10-01
Publication date: 2013-03-06
Anticipated expiration: 2028-10-01
Also published as: JP2009291591A

Description

本発明は、呼吸補助を必要とする患者にガスを送る蘇生装置などの人工呼吸器に用いるための圧力調節装置に関するものである。また、本発明は、このような圧力調節装置を用いた人工呼吸器にも関するものである。 The present invention relates to a pressure regulator for use in a ventilator such as a resuscitation device that delivers gas to a patient in need of respiratory assistance. The present invention also relates to a ventilator using such a pressure regulator.

呼吸補助を必要とする患者にガスを送る人工呼吸器に用いるための圧力調節装置は、例えば特許文献１に開示されている。この特許文献１に開示されている圧力調節装置（以下、「特許文献１の圧力調節装置」という。）は、吸気ガス用の入口部、吸気ガス用の出口部および第３の通気口部をそれぞれ有するハウジング機構を備えている。また、この特許文献１の圧力調節装置は、吸気ガス用入口部と吸気ガス用出口部との間のガス通路に臨むように、ハウジング機構のほぼ円筒形状の弁ハウジング内に配設された調節弁と、調節弁を弁ハウジング内に設けた弁座部に対して弾性的に付勢するコイルばねと、コイルばねの弾性付勢力を調整するために回転操作される調整操作キャップとをさらに備えている。そして、調整操作キャップは、弁ハウジングの筒状部の外周面に形成されたねじ部にねじ込まれている。また、弁ハウジングの筒状部には、上記第３の通気口としてのガス放出口が形成されている。そして、ガス通路を流れるガスの圧力と、ねじ部に対する調整操作キャップのねじ込みまたはねじ戻しの量とに応じて調整弁が開閉するので、ガス通路を流れるガスがこの開閉状態に応じてガス放出口部から部分的に外部に流出する。さらに、調整操作キャップが不必要に回動するのを防止するために、上記筒状部には、この調整操作キャップを覆うように、回動防止用の係止キャップが着脱自在に嵌め込まれる。
特開２００２−２３９００６号公報 A pressure regulator for use in a ventilator that sends gas to a patient in need of respiratory assistance is disclosed in, for example, Patent Document 1. The pressure adjusting device disclosed in Patent Document 1 (hereinafter referred to as “the pressure adjusting device of Patent Document 1”) includes an inlet portion for intake gas, an outlet portion for intake gas, and a third vent portion. Each housing mechanism is provided. In addition, the pressure adjusting device of Patent Document 1 is an adjustment provided in a substantially cylindrical valve housing of a housing mechanism so as to face a gas passage between an intake gas inlet and an intake gas outlet. A valve, a coil spring that elastically biases the control valve against a valve seat provided in the valve housing, and an adjustment operation cap that is rotated to adjust the elastic biasing force of the coil spring. ing. And the adjustment operation cap is screwed into the thread part formed in the outer peripheral surface of the cylindrical part of a valve housing. A gas discharge port as the third vent is formed in the tubular portion of the valve housing. The adjustment valve opens and closes according to the pressure of the gas flowing through the gas passage and the amount of screwing or unscrewing of the adjustment operation cap with respect to the screw portion. Partly flows out from the section. Furthermore, in order to prevent the adjustment operation cap from rotating unnecessarily, a locking cap for rotation prevention is detachably fitted to the cylindrical portion so as to cover the adjustment operation cap.
JP 2002-239006 A

しかし、上述のように構成された特許文献１の圧力調節装置の場合には、操作者などが手で触れたときなどに調整操作キャップが不必要に回動するのを防止するためには、調整操作キャップを回動防止用係止キャップによって覆う必要がある。また、調整操作キャップをねじ込みまたはねじ戻しするためには、回動防止用係止キャップを調整操作キャップから取り外す必要がある。したがって、回動防止用係止キャップが余分に必要なために部品点数が多くなるだけでなく、回動防止用係止キャップを取り外してから調整操作キャップを回動操作する必要があるとともに、この回動操作後には回動防止用係止キャップを再び取り付ける必要があるから、調整操作キャップの回動操作が全体として煩雑である。また、回動防止用係止キャップの取り外しおよび取り付けの際にも調整操作キャップが不必要に回動するおそれがあり、さらに、回動防止用係止キャップを紛失してしまう可能性もあるから、調整操作キャップの不必要な回動を確実に防止する観点からも、問題がある。
特開２００２−２３９００６号公報 However, in the case of the pressure adjustment device of Patent Document 1 configured as described above, in order to prevent the adjustment operation cap from unnecessarily rotating when the operator touches it with a hand, It is necessary to cover the adjustment operation cap with a locking cap for preventing rotation. Further, in order to screw or unscrew the adjustment operation cap, it is necessary to remove the rotation prevention locking cap from the adjustment operation cap. Accordingly, since an extra locking cap for rotation prevention is required, not only the number of parts increases, but also the adjustment operation cap needs to be rotated after removing the locking cap for rotation prevention. Since it is necessary to reattach the locking cap for rotation prevention after the rotation operation, the rotation operation of the adjustment operation cap is complicated as a whole. In addition, the adjustment operation cap may rotate unnecessarily when the locking cap for rotation prevention is removed and attached, and the locking cap for rotation prevention may be lost. There is also a problem from the viewpoint of reliably preventing unnecessary rotation of the adjustment operation cap.
JP 2002-239006 A

本発明は、特許文献１の圧力調整装置における上述のような欠点を、比較的簡単な構成でもって、効果的に是正し得るようにしたものである。
特開２００２−２３９００６号公報 According to the present invention, the above-described drawbacks in the pressure adjusting device of Patent Document 1 can be effectively corrected with a relatively simple configuration.
JP 2002-239006 A

本発明は、その第１の観点においては、呼吸補助を必要とする患者にガスを送る人工呼吸器に用いるための圧力調節装置において、第１の通気口部、第２の通気口部および第３の通気口部をそれぞれ有しかつ上記第１の通気口部および第２の通気口部のうちの一方の通気口部が吸気ガス用の入口部として用いられることができるとともに他方の通気口部が吸気ガス用の出口部として用いられることができるハウジング機構と、上記第１の通気口部と上記第２の通気口部との間のガス通路に臨むように上記ハウジング機構に配設された調節弁と、上記調節弁を上記ハウジング機構に設けた弁座部に弾性的に付勢する弾性付勢手段と、上記弾性付勢手段の弾性付勢力を調整するために作動される調整作動部材と、上記調整作動部材を作動させるために回動操作される調整操作部材とをそれぞれ備え、上記ガス通路のガス圧が所定のレベルよりも低いときには、上記調節弁が上記第３の通気口部を閉塞するとともに、上記ガス通路のガス圧が所定のレベルよりも高いときには、上記調節弁が上記第３の通気口部を開放して、上記ガス通路のガスが上記第３の通気口部を流れるように構成され、上記調整操作部材が上記調整作動部材に対して復動しているときには、上記調整操作部材が上記調整作動部材に対して空回りするように構成されるとともに、上記調整操作部材が上記調整作動部材に対して引っ張り出されたときには、上記調整操作部材の回動操作によって上記調整作動部材が作動して、上記弾性付勢手段の弾性付勢力が調整されるように構成されていることを特徴とする圧力調節装置に係るものである。そして、本発明は、その第２の観点においては、上記第１の観点における圧力調節装置によってガス圧が調節されるように構成されていることを特徴とする人工呼吸器に係るものである。 According to a first aspect of the present invention, there is provided a pressure regulating device for use in a ventilator for sending gas to a patient in need of breathing assistance, the first vent portion, the second vent portion and the first vent portion. Each of the first vent portion and the second vent portion can be used as an inlet portion for intake gas, and the other vent portion can be used. A housing mechanism that can be used as an outlet for intake gas, and a housing mechanism that faces a gas passage between the first vent and the second vent. A regulating valve, an elastic urging means for elastically urging the regulating valve to a valve seat provided in the housing mechanism, and an adjustment operation operated to adjust the elastic urging force of the elastic urging means To operate the member and the adjusting operation member An adjusting operation member that is pivotally operated, and when the gas pressure in the gas passage is lower than a predetermined level, the control valve closes the third vent portion, and the gas in the gas passage When the pressure is higher than a predetermined level, the adjustment valve opens the third vent portion so that the gas in the gas passage flows through the third vent portion, and the adjustment operation member Is configured to rotate idly with respect to the adjustment operation member when the adjustment operation member moves backward with respect to the adjustment operation member, and the adjustment operation member is pulled out of the adjustment operation member. The pressure adjusting mechanism is configured such that when the adjustment operation member is rotated, the adjustment operation member is operated by a rotation operation of the adjustment operation member to adjust an elastic urging force of the elastic urging means. It relates to the location. And in this 2nd viewpoint, this invention concerns on the ventilator characterized by being comprised so that gas pressure may be adjusted with the pressure regulator in the said 1st viewpoint.

また、本発明の上記第１および第２の観点における第１の態様によれば、上記調整作動部材が、上記ハウジング機構にそれぞれ配設された第１の調整作動部材および第２の調整作動部材を備え、上記第１の調整作動部材が、上記調整操作部材の回動操作によって回動して、上記第２の調整作動部材を回動させるように構成され、上記第２の調整作動部材が、その回動によって、上記弾性付勢手段の弾性付勢力を調整するために作動するように構成されている。この場合、上記調整操作部材が調整操作キャップであり、上記調整操作キャップが上記第１の調整作動部材の頭部に被せられているのが好ましい。 According to the first aspect of the first and second aspects of the present invention, the adjustment operation member is a first adjustment operation member and a second adjustment operation member respectively disposed in the housing mechanism. The first adjustment operation member is configured to rotate by the rotation operation of the adjustment operation member to rotate the second adjustment operation member, and the second adjustment operation member is The rotation is configured to operate to adjust the elastic urging force of the elastic urging means. In this case, it is preferable that the adjustment operation member is an adjustment operation cap, and the adjustment operation cap is put on the head of the first adjustment operation member.

また、本発明の上記第１および第２の観点における第２の態様によれば、上記調整操作部材が第１の係合部を備え、上記調整作動部材が第２の係合部を備え、上記調整操作部材が上記調整作動部材に対して復動している復動位置にあるときには、上記調整操作部材の上記第１の係合部と上記調整作動部材の上記第２の係合部との相互の係合が解除されていて、上記調整操作部材が上記調整作動部材に対して空回りするように構成されるとともに、上記調整操作部材が上記調整作動部材に対して上記復動位置から引っ張り出されたときには、上記第１の係合部と上記第２の係合部とが相互に係合することによって、上記調整操作部材の回動操作が上記調整作動部材に伝達されて、上記調整作動部材が作動するように構成されている。さらに、本発明の上記第１および第２の観点における第３の態様によれば、上記第３の通気口部に連なっている開口が上記調整操作部材の頂面部に形成されている。 Moreover, according to the 2nd aspect in the said 1st and 2nd viewpoint of this invention, the said adjustment operation member is provided with the 1st engaging part, the said adjustment action member is provided with the 2nd engaging part, When the adjustment operation member is in a backward movement position where the adjustment operation member moves backward with respect to the adjustment operation member, the first engagement portion of the adjustment operation member and the second engagement portion of the adjustment operation member And the adjustment operation member is configured to idle with respect to the adjustment operation member, and the adjustment operation member is pulled from the backward movement position with respect to the adjustment operation member. When released, the first engagement portion and the second engagement portion engage with each other, whereby the rotation operation of the adjustment operation member is transmitted to the adjustment operation member, and the adjustment operation is performed. The actuating member is configured to actuate. Furthermore, according to the 3rd aspect in the said 1st and 2nd viewpoint of this invention, the opening connected to the said 3rd vent hole part is formed in the top surface part of the said adjustment operation member.

また、本発明の上記第２の観点における第４の観点によれば、上記圧力調整装置の上記吸気ガス用出口部に連結されることができる第２の吸気ガス用入口部を有するフェイスマスクをさらに備え、上記圧力調節装置の上記第１の通気口部および上記第２の通気口部のいずれもが上記フェイスマスクの上記第２の吸気ガス用入口部を選択的に連結し得るように構成され、上記第１および第２の通気口部のうちの、上記第２の吸気ガス用入口部を連結した通気口部が、上記圧力調節装置の上記吸気ガス用出口部として機能するように構成されるとともに、他方の通気口部が上記圧力調節装置の上記吸気ガス用入口部として機能するように構成されている。この場合、上記圧力調節装置の上記第１の通気口部の軸心が上記第２の通気口部の軸心に対して成す角度が、８５°〜９５°の範囲であるのが好ましい。 According to a fourth aspect of the second aspect of the present invention, there is provided a face mask having a second intake gas inlet portion that can be connected to the intake gas outlet portion of the pressure adjusting device. Further, both the first vent portion and the second vent portion of the pressure adjusting device are configured to selectively connect the second intake gas inlet portion of the face mask. Among the first and second vent portions, the vent portion connected to the second intake gas inlet portion functions as the intake gas outlet portion of the pressure regulator. In addition, the other vent hole portion is configured to function as the intake gas inlet portion of the pressure adjusting device. In this case, it is preferable that the angle formed by the axis of the first vent part of the pressure adjusting device with respect to the axis of the second vent part is in a range of 85 ° to 95 °.

請求項１および６に係る発明によれば、調整操作部材が不必要に回動するのを防止するために、回動防止用係止キャップによって調整操作部材を覆う必要がないから、調整操作部材の回動操作が全体として簡単である。また、調整作動部材の不必要な作動を確実に防止する観点からも、なんら問題がない。さらに、調整操作部材が調整作動部材に対して復動しているときには、調整操作部材は調整作動部材に対して空回りするから、調整操作部材の回動が強制的に阻止される場合のように、調整操作部材を大きな力で回動させようとするおそれがなく、このために、調整操作部材、調整作動部材などが破損するおそれがない。 According to the first and sixth aspects of the invention, in order to prevent the adjustment operation member from rotating unnecessarily, it is not necessary to cover the adjustment operation member with the rotation prevention locking cap. Is easy as a whole. Also, there is no problem from the viewpoint of reliably preventing unnecessary operation of the adjusting operation member. Further, when the adjustment operation member is moved backward with respect to the adjustment operation member, the adjustment operation member idles with respect to the adjustment operation member, so that the rotation of the adjustment operation member is forcibly prevented. There is no risk of trying to rotate the adjustment operation member with a large force, and therefore there is no possibility that the adjustment operation member, the adjustment operation member, or the like will be damaged.

また、請求項２に係る発明によれば、調整操作部材の回動操作によって、第１の調整作動部材が回動し、この第１の調整作動部材の回動によって、第２の調整作動部材が弾性付勢手段の弾性付勢力を調整するために作動するようにしたので、弁座部に対する調節弁の圧着状態を調整する動作を確実かつ円滑に行うことができる。 According to the invention of claim 2, the first adjustment operation member is rotated by the rotation operation of the adjustment operation member, and the second adjustment operation member is rotated by the rotation of the first adjustment operation member. Since it operates to adjust the elastic urging force of the elastic urging means, the operation of adjusting the pressure-bonding state of the adjusting valve with respect to the valve seat portion can be performed reliably and smoothly.

また、請求項３に係る発明によれば、第１の調整作動部材に対して調整操作部材を容易かつ確実に回動操作することができるとともに、第１の調整作動部材に対する調整操作部材の回動伝達および空回りを行うための連動・連動解除機構を第１の調整作動部材および調整操作部材の間に簡単かつ確実に構成することが可能である。 According to the invention of claim 3, the adjustment operation member can be easily and reliably rotated with respect to the first adjustment operation member, and the adjustment operation member is rotated with respect to the first adjustment operation member. It is possible to easily and reliably configure the interlocking / interlocking release mechanism for performing dynamic transmission and idling between the first adjustment operating member and the adjustment operation member.

また、請求項４に係る発明によれば、調整作動部材に対する調整操作部材の回動伝達および空回りを行うための連動・連動解除機構の構成を簡単にかつ動作を確実にすることが可能である。 According to the fourth aspect of the present invention, it is possible to easily and reliably ensure the operation of the interlock / interlock release mechanism for performing rotation transmission and idle rotation of the adjustment operation member with respect to the adjustment operation member. .

また、請求項５に係る発明によれば、調整操作部材の頂面部に形成されている開口を操作者が指などで断続的に閉塞することによって、患者の呼吸回数を調節することが可能である。それでいて、操作者が指などで開口を閉塞するときに調整操作部材の頂面部を力強く押しても、調整操作部材が調整作動部材に対して空回りするから、調整作動部材が不必要に作動するおそれがない。 According to the fifth aspect of the present invention, the operator can adjust the number of breathing of the patient by intermittently closing the opening formed in the top surface portion of the adjustment operation member with a finger or the like. is there. Nevertheless, even if the operator closes the opening with a finger or the like, even if the top surface portion of the adjustment operation member is strongly pressed, the adjustment operation member is idle with respect to the adjustment operation member, so that the adjustment operation member may operate unnecessarily. Absent.

また、請求項７に係る発明によれば、圧力調節装置の操作者は、この圧力調節装置を２通りの使用状態で使用することができるので、この２通りの使用状態のうちの自分に都合のよい使用状態で、圧力調節装置を使用することができて、好都合である。さらに、請求項８に係る発明によれば、上記２通りの使用状態のうちのいずれの使用状態で使用しても、使用勝手が比較的良好である。 According to the seventh aspect of the invention, the operator of the pressure regulator can use the pressure regulator in two usage states, so that it is convenient for one of the two usage states. It is convenient to be able to use the pressure control device in good use condition. Furthermore, according to the invention which concerns on Claim 8, even if it uses it in any use state of the said 2 types of use states, usability is comparatively favorable.

つぎに、本発明をＴピース蘇生装置の圧力調節装置に適用した第１および第２の実施例を、「Ａ、第１の実施例」および「Ｂ、第２の実施例」に項分けして、図面を参照しつつ説明する。 Next, the first and second embodiments in which the present invention is applied to the pressure regulating device of the T-piece resuscitation device are divided into “A, the first embodiment” and “B, the second embodiment”. This will be described with reference to the drawings.

Ａ、第１の実施例
まず、本発明の第１の実施例を、「１、Ｔピース蘇生装置全体の概略的構成」、「２、圧力調節装置の構成」、「３、圧力調節装置の動作」および「４、Ｔピース蘇生装置の使用方法」に項分けして、図１〜図７を参照しつつ説明する。 A, first embodiment First, the first embodiment of the present invention is described in “1, Schematic configuration of the entire T-piece resuscitation device”, “2, Configuration of the pressure regulator”, “3, The operation will be divided into “operation” and “4, usage of the T-piece resuscitation device”, and will be described with reference to FIGS.

１、Ｔピース蘇生装置全体の概略的構成
Ｔピース蘇生装置は、図６に示すように、蘇生装置本体１と、この蘇生装置本体１にガス供給チューブ２を介して吸気ガスを供給するガス源（図示せず）と、蘇生装置本体１からガス供給チューブ３を介して吸気ガスを供給される圧力調節装置４と、この圧力調節装置４に取り付けられるフェイスマスク５とを備えている。この場合、圧力調節装置４は、患者Ｔピースとも称されている。そして、フェイスマスク５のマスク本体５ａの下面には、水泳用浮き輪を小さくしたような形状を有するリング状空気袋５ｂが取り付けられている。また、マスク本体５ａの上面には、シリンジ（換言すれば、注射針が付いていない注射器−図示せず）などによってリング状空気袋５ｂに対して空気を注入したり空気を抜いたりするのに用いられる空気出し入れ用パイプ部５ｃが設けられている。さらに、マスク本体５ａの上面のほぼ中央部には、圧力調節装置４に着脱可能に連結されるほぼ筒状の吸気ガス用入口部５ｄが設けられている。なお、フェイスマスク５は、気管カニューレ、鼻孔カニューレなどのカニューレであってもよい。そして、符号６は、上記ガス源の流量計であって、この流量計６は、ガス源からガス供給チューブ２を介して蘇生装置本体１に供給される吸気ガスの流量を調節するのに用いられる。また、図６においては、蘇生装置本体１およびその付近は、それ以外の部分に較べて縮小した状態で示されている。 1. Schematic configuration of entire T-piece resuscitation apparatus As shown in FIG. 6, a T-piece resuscitation apparatus includes a resuscitation apparatus body 1 and a gas source that supplies intake gas to the resuscitation apparatus body 1 via a gas supply tube 2. (Not shown), a pressure adjusting device 4 to which intake gas is supplied from the resuscitation device main body 1 through the gas supply tube 3, and a face mask 5 attached to the pressure adjusting device 4. In this case, the pressure adjusting device 4 is also referred to as a patient T-piece. And the ring-shaped air bag 5b which has the shape which made the floating ring for swimming small was attached to the lower surface of the mask main body 5a of the face mask 5. FIG. Further, on the upper surface of the mask main body 5a, air is injected into or extracted from the ring-shaped air bag 5b by a syringe (in other words, a syringe without an injection needle—not shown). The pipe 5c for taking in and out air used is provided. Further, an approximately cylindrical intake gas inlet portion 5d that is detachably connected to the pressure adjusting device 4 is provided at a substantially central portion of the upper surface of the mask body 5a. The face mask 5 may be a cannula such as a tracheal cannula or a nasal cannula. Reference numeral 6 is a flow meter for the gas source, and the flow meter 6 is used to adjust the flow rate of the intake gas supplied from the gas source to the resuscitation apparatus body 1 through the gas supply tube 2. It is done. Moreover, in FIG. 6, the resuscitation apparatus main body 1 and its vicinity are shown in the state reduced compared with the other part.

蘇生装置本体１には、図６に示すように、回路圧を表示する回路圧力計１１と、最大開放圧を調節するのに用いられる最大開放圧調節摘み１２と、吸気圧を調節するのに用いられる吸気圧調節摘み１３とを備えている。また、蘇生装置本体１には、ガス導入口部１４およびガス放出口部１５が設けられている。そして、ガス導入口部１４には、ガス供給チューブ２の終端部が接続される。また、ガス放出口部１５には、ガス供給チューブ３の始端部が接続される。 As shown in FIG. 6, the resuscitation apparatus main body 1 includes a circuit pressure gauge 11 for displaying the circuit pressure, a maximum opening pressure adjusting knob 12 used for adjusting the maximum opening pressure, and an intake pressure. And an intake pressure adjusting knob 13 to be used. In addition, the resuscitation apparatus main body 1 is provided with a gas introduction port portion 14 and a gas discharge port portion 15. And the terminal part of the gas supply tube 2 is connected to the gas inlet 14. The gas discharge port 15 is connected to the start end of the gas supply tube 3.

２、圧力調節装置の構成
圧力調節装置４は、図１〜図４に示すように、分岐管部２１ａを有するほぼＴ字形状の分岐管２１を備えている。そして、分岐管部２１ａには、少なくともその先端部が円筒状などの筒状の管継手２２が回転自在に取り付けられている。また、この管継手２２には、図６に示すガス供給チューブ３が接続されているので、管継手２２は、吸気ガス用の入口部としての吸気ガス供給口部を構成している。さらに、多岐管２１の下端部には、少なくともその先端部が円筒状などの筒状の管継手２３が回転自在に取り付けられている。また、この管継手２３には、図６に示すフェイスマスク５の円筒状などの筒状の吸気ガス用入口部５ｄが着脱自在に取り付けられるので、管継手２３は、吸気ガス用の出口部としての患者２４に対するガス出入口部を構成している。この場合、雄型としての管継手２３が雌型としての吸気ガス用入口部５ｄに嵌合されて取り付けられるように構成されている。したがって、管継手２３の外周囲の形状（換言すれば、外径）は、吸気ガス用入口部５ｄｄの内周囲の形状（換言すれば、内径）とほぼ一致している。また、多岐管２１の中心線（換言すれば、軸心）Ｌ_１が分岐管部２１ａおよび管継手２２の中心線（換言すれば、軸心）Ｌ_２と成す角度θ_１は、図示の実施例においては、約６２°である。したがって、吸気ガス用出口部としての管継手２３の軸心Ｌ_１が吸気ガス用入口部としての管継手２２の軸心Ｌ_２と成す角度θ_２は、図示の実施例においては、約１１８°である。 2. Structure of pressure regulator The pressure regulator 4 is provided with the substantially T-shaped branch pipe 21 which has the branch pipe part 21a, as shown in FIGS. The branch pipe portion 21a is rotatably attached with a tubular pipe joint 22 having a cylindrical shape or the like at least at its distal end. Further, since the gas supply tube 3 shown in FIG. 6 is connected to the pipe joint 22, the pipe joint 22 constitutes an intake gas supply port portion as an intake gas inlet portion. Furthermore, a tubular pipe joint 23 having a cylindrical shape or the like is attached to the lower end portion of the manifold 21 so as to be rotatable. In addition, a cylindrical intake gas inlet portion 5d such as a cylindrical shape of the face mask 5 shown in FIG. 6 is detachably attached to the pipe joint 23, so that the pipe joint 23 serves as an intake gas outlet portion. The gas inlet / outlet portion for the patient 24 is configured. In this case, the male pipe joint 23 is configured to be fitted and attached to the intake gas inlet 5d as a female mold. Therefore, the outer peripheral shape (in other words, the outer diameter) of the pipe joint 23 substantially matches the inner peripheral shape (in other words, the inner diameter) of the intake gas inlet portion 5dd. Furthermore, (in other words, axial) center line of the manifold 21 (in other words, axis) L ₁ is the center line of the branch pipe portion 21a and the pipe joint 22 angle theta ₁ formed by the L ₂ is illustrated implementation In the example, it is about 62 °. Therefore, the angle θ ₂ formed by the axis L ₁ of the pipe joint 23 as the intake gas outlet and the axis L ₂ of the pipe joint 22 as the intake gas inlet is about 118 ° in the illustrated embodiment. It is.

多岐管２１の上半部の外周囲には、図１、図３および図４に示すように、外筒部材２５の下半部が嵌合されて固定されている。この嵌合は、外筒部材２５の下端部側から多岐管２１の上端部側へ挿入することによって、行われる。なお、外筒部材２５の下端付近には、分岐管部２１ａに対応した切欠き形状の開口２６が形成されている。そして、この開口２６は、外筒部材２５の下端に連なっていて、この下端において幅狭部２６ａを有している。したがって、上記嵌合状態においては、外筒部材２５は、幅狭部２６ａの左右両側の部分によって、分岐管部２１ａの下端部付近を左右両側から抱き抱えるように弾性的に把持しているので、多岐管２１からの外筒部材２５の抜け止めが施されている。 As shown in FIGS. 1, 3, and 4, the lower half of the outer cylinder member 25 is fitted and fixed to the outer periphery of the upper half of the manifold 21. This fitting is performed by inserting the outer cylinder member 25 from the lower end side to the upper end side of the manifold 21. In the vicinity of the lower end of the outer cylinder member 25, a notch-shaped opening 26 corresponding to the branch pipe portion 21a is formed. And this opening 26 is continued to the lower end of the outer cylinder member 25, and has the narrow part 26a in this lower end. Therefore, in the above-mentioned fitting state, the outer cylinder member 25 is elastically gripped by the left and right side portions of the narrow portion 26a so as to hold the vicinity of the lower end portion of the branch pipe portion 21a from both the left and right sides. The outer cylinder member 25 is prevented from coming off from the manifold 21.

外筒部材２５を多岐管２１に上述のように嵌合させるに先立って、呼気終末陽圧（換言すれば、ＰＥＥＰ）調節弁３１、弾性付勢手段としての反発用のコイルばね３２、ストッパ部材３３および第２の調整作動部材または昇降型調整作動部材としてのばね圧調節ねじ３４ならびに場合によっては第１の調整作動部材としての回動型の調整作動部材３５および場合によっては調整操作部材としての調整操作キャップ３６は、多岐管２１および／または外筒部材２５にそれぞれ予め取り付けられる。この取り付けの一例を説明すると、つぎの（ａ）項〜（ｆ）項に記載のとおりである。なお、図２においては、回動型調整作動部材３５および調整操作キャップ３６は、斜め上方からの図と斜め下方からの図との２通りで示されている。
（ａ）回動型調整作動部材３５を図４に示すように外筒部材２５に取り付ける。この取り付けに際しては、まず、回動型調整作動部材３５の作動軸部３５ａを外筒部材２５の内部空間３７に挿入する。ついで、回動型調整作動部材３５のほぼリング状の突条部３５ｂを外筒部材２５の上端部に設けられた複数個の係合爪部３８のそれぞれに弾性的に係合させる。
（ｂ）ついで、ばね圧調整ねじ３４を外筒部材２５の内部空間３７に取り付ける。この取り付けに際しては、まず、作動軸部３５ａの先端部を図５に示すようにばね圧調整ねじ３４の係合孔４１に相対的に挿入して、両者を互いに係合させる。ついで、外筒部材２５に対して回動型調整作動部材３５を回転させることによって、ばね圧調整ねじ３４の外周面に形成されている雄ねじ部３４ａを外筒部材２５の内周面に形成されている雌ねじ部２５ａにねじ込ませて、ばね圧調整ねじ３４を外筒部材２５に対して例えば図４に示す状態を経て図３に示す状態まで上方に移動させる。
（ｃ）ついで、ＰＥＥＰ調節弁３１を、図３に示すように、多岐管２１の上端部（換言すれば、弁座部）４２上に載置する。なお、この調節弁３１は、吸気ガス供給口部２２と、患者に対するガス出入口部２３との間のガス通路５０に臨むように、多岐管２１に配設される。
（ｄ）ついで、ストッパ部材３３を外筒部材２５の内部空間３７にこの内部空間３７の下方から挿入して、図３に示すように外筒部材２５に固定する。この固定に際しては、外筒部材２５に互いに対向するように形成されている一対の小孔４０を通して挿入した止めねじまたは止めピン（いずれも図示せず）をストッパ部材３３にねじ込むことまたは圧入すること、もしくは、上記小孔４０から接着剤を流し込むことなどによって、達成することができる。
（ｅ）ついで、コイルばね３２の両端部が、図３に示すように、ばね圧調整ねじ３４の下面側に設けられたばね受け用凹部（換言すれば、ばね受け用下面部）４３と、ＰＥＥＰ調整弁３１の上面側に設けられたばね受け用凹部（換言すれば、ばね受け用上面部）４４とにそれぞれ保持された状態にしてから、前述のようにして、外筒部材２５を多岐管２１に嵌合させる。
（ｆ）ついで、調整操作キャップ３６を、図３に示すように、回動型調整作動部材３５の頭部３５ｃに被せる。このように被せる際には、まず、頭部３５ｃは、図４および図５に示す途中まで調整操作キャップ３６に相対的に挿入される。この状態においては、頭部３５ｃの径大部４５が、調整操作キャップ３６の頂面部３６ａと、多角形状（図示の実施例においては、八角形）などの内周係合部３６ｂとの間に位置保持されることによって、回動型調整作動部材３５からの調整操作キャップ３６の抜け止めが施される。また、内周係合部３６ｂには、この内周係合部３６ｂとほぼ同形である回動型調整作動部材３５の多角形状（図示の実施例においては、八角形）などの外周係合部３５ｄが係合しているので、両者が一体となって回動する。ついで、頭部３５ｃは、図３に示す最上昇位置まで調整操作キャップ３６に相対的に挿入される。この状態においては、回動型調整作動部材３５の頭部３５ｃは、調整操作キャップ３６の頂面部３６ａの内側面に当接している。また、調整操作キャップ３６の内周係合部３６ｂは、図３に示すように、回動型調整作動部材３５の外周係合部３５ｄとの係合を解消して、この外周係合部３５ｄの下方に位置している。したがって、調整操作キャップ３６は、回動型調整作動部材３５に対して空回りする状態になっている。さらに、回動型調整作動部材３５の中央開孔４６は、調整操作キャップ３６の頂面部３６ａに形成されている中央開孔４７と隣接した状態でもって、この中央開孔４７に連通している。なお、これら２種類の中央開孔４６、４７によって、圧力調節装置４の第３の通気口部としての呼気排気口部４８が形成されている。そして、この呼気排気口部４８の終端部は、調整操作キャップ３６の頂面部３６ａにおいて、開口５３を形成している。 Prior to fitting the outer cylinder member 25 to the manifold 21 as described above, positive end-expiratory pressure (in other words, PEEP) adjustment valve 31, coil spring 32 for repulsion as an elastic biasing means, stopper member 33 and a spring pressure adjusting screw 34 as a second adjustment actuating member or an elevating type adjusting actuating member, and a rotating type adjusting actuating member 35 as a first adjusting actuating member and possibly as an adjusting operation member. The adjustment operation cap 36 is previously attached to the manifold 21 and / or the outer cylinder member 25, respectively. An example of this attachment will be described as described in the following items (a) to (f). In FIG. 2, the rotary type adjustment operation member 35 and the adjustment operation cap 36 are shown in two ways: a view from obliquely above and a view from obliquely below.
(A) The rotation type adjusting operation member 35 is attached to the outer cylinder member 25 as shown in FIG. For this attachment, first, the operating shaft portion 35 a of the rotation type adjusting operating member 35 is inserted into the internal space 37 of the outer cylinder member 25. Next, the substantially ring-shaped protrusion 35 b of the rotation type adjusting operation member 35 is elastically engaged with each of the plurality of engaging claws 38 provided at the upper end of the outer cylinder member 25.
(B) Next, the spring pressure adjusting screw 34 is attached to the inner space 37 of the outer cylinder member 25. At the time of attachment, first, the distal end portion of the operating shaft portion 35a is relatively inserted into the engagement hole 41 of the spring pressure adjusting screw 34 as shown in FIG. Next, by rotating the rotation type adjustment operating member 35 with respect to the outer cylinder member 25, the male screw portion 34 a formed on the outer peripheral surface of the spring pressure adjusting screw 34 is formed on the inner peripheral surface of the outer cylinder member 25. The spring pressure adjusting screw 34 is moved upward to the state shown in FIG. 3 through the state shown in FIG. 4, for example, with respect to the outer cylinder member 25.
(C) Next, as shown in FIG. 3, the PEEP control valve 31 is placed on the upper end portion (in other words, the valve seat portion) 42 of the manifold 21. The control valve 31 is disposed in the manifold 21 so as to face the gas passage 50 between the inspiratory gas supply port 22 and the gas inlet / outlet 23 for the patient.
(D) Next, the stopper member 33 is inserted into the inner space 37 of the outer cylinder member 25 from below the inner space 37 and fixed to the outer cylinder member 25 as shown in FIG. At the time of fixing, a set screw or a set pin (both not shown) inserted through a pair of small holes 40 formed so as to face the outer cylinder member 25 is screwed into the stopper member 33 or press-fitted. Alternatively, it can be achieved by pouring an adhesive from the small hole 40.
(E) Next, as shown in FIG. 3, both end portions of the coil spring 32 are provided with spring receiving recesses (in other words, spring receiving lower surface portions) 43 provided on the lower surface side of the spring pressure adjusting screw 34, and PEEP. After being held in the spring receiving recesses (in other words, the spring receiving upper surface portion) 44 provided on the upper surface side of the regulating valve 31, the outer cylinder member 25 is connected to the manifold 21 as described above. To fit.
(F) Next, as shown in FIG. 3, the adjustment operation cap 36 is put on the head portion 35 c of the rotation type adjustment operation member 35. When covering in this way, first, the head 35c is relatively inserted into the adjustment operation cap 36 halfway as shown in FIGS. In this state, the large-diameter portion 45 of the head portion 35c is between the top surface portion 36a of the adjustment operation cap 36 and the inner peripheral engagement portion 36b such as a polygonal shape (an octagon in the illustrated embodiment). By holding the position, the adjustment operation cap 36 is prevented from coming off from the rotation type adjustment operation member 35. Further, the inner peripheral engagement portion 36b has an outer peripheral engagement portion such as a polygonal shape (an octagon in the illustrated embodiment) of the rotary adjustment actuating member 35 that is substantially the same shape as the inner peripheral engagement portion 36b. Since 35d is engaged, both rotate integrally. Next, the head portion 35c is relatively inserted into the adjustment operation cap 36 to the highest position shown in FIG. In this state, the head portion 35 c of the rotation type adjustment operation member 35 is in contact with the inner surface of the top surface portion 36 a of the adjustment operation cap 36. Further, as shown in FIG. 3, the inner peripheral engagement portion 36b of the adjustment operation cap 36 releases the engagement with the outer peripheral engagement portion 35d of the rotation type adjustment operation member 35, and this outer peripheral engagement portion 35d. It is located below. Accordingly, the adjustment operation cap 36 is idle with respect to the rotation type adjustment operation member 35. Further, the central opening 46 of the rotary type adjusting operation member 35 communicates with the central opening 47 in a state adjacent to the central opening 47 formed in the top surface portion 36 a of the adjustment operation cap 36. . The two types of central openings 46 and 47 form an exhalation exhaust port portion 48 as a third vent portion of the pressure adjusting device 4. The end portion of the exhalation exhaust port portion 48 forms an opening 53 in the top surface portion 36 a of the adjustment operation cap 36.

上記（ａ）項〜（ｆ）項に記載のようにして構成された圧力調節装置４においては、多岐管２１、管継手２２、２３、外筒部材２５および回動型調整作動部材３５の上半部によって、ハウジング機構が構成されている。そして、調整操作キャップ３６には、図１〜図５に示すように、下端から頂面部３６ａ付近までほぼ上下方向に延在している複数本（図示の実施例においては、８本）のスリット４９が形成されている。また、これらのスリット４９は、調整操作キャップ３６をその内周面からその外周面まで貫通している。したがって、調整操作キャップ３６の周側部は、これらのスリット４９によって、頂面部３６ａに対して内周面側および外周面側のいずれに向っても容易に弾性変形し得るようになっている。このために、調整操作キャップ３６をプラスチック成形するときに、この調整操作キャップ３６からの内側金型の抜き出しが可能になる。また、上記（ｆ）項に記載のように、調整操作キャップ３６を回動型調整作動部材３５の頭部３５ｃに被せるときに、回動型調整作動部材３５の頭部３５ｃが調整操作キャップ３６の内周係合部３６ｂを下側から上側へと容易に乗り越えることができる。 In the pressure adjusting device 4 configured as described in the above items (a) to (f), the manifold 21, the pipe joints 22, 23, the outer cylinder member 25, and the rotary type adjusting operation member 35 are provided. A housing mechanism is constituted by the half portion. As shown in FIGS. 1 to 5, the adjustment operation cap 36 has a plurality of (eight in the illustrated embodiment) slits extending substantially vertically from the lower end to the vicinity of the top surface portion 36 a. 49 is formed. Further, these slits 49 penetrate the adjusting operation cap 36 from its inner peripheral surface to its outer peripheral surface. Therefore, the peripheral side portion of the adjustment operation cap 36 can be easily elastically deformed by these slits 49 regardless of whether it faces either the inner peripheral surface side or the outer peripheral surface side with respect to the top surface portion 36a. For this reason, when the adjustment operation cap 36 is plastic-molded, the inner mold can be extracted from the adjustment operation cap 36. Further, as described in the above section (f), when the adjustment operation cap 36 is put on the head portion 35 c of the rotation type adjustment operation member 35, the head portion 35 c of the rotation type adjustment operation member 35 is adjusted to the adjustment operation cap 36. It is possible to easily get over the inner peripheral engagement portion 36b from the lower side to the upper side.

３、圧力調節装置の動作
前記ガス源からのガスが、図６にそれぞれ示すガス供給チューブ２、蘇生装置本体１およびガス供給チューブ３を経由して、図３に示す管継手（換言すれば、吸気ガス供給口部）２２から多岐管２１内に導入される。この場合、医師などの操作者５１が調整操作キャップ３６の開口５３を指５２などで閉塞していれば、このガスは、ＰＥＥＰ調整弁３１が一時的に開くことがあっても指５２などで閉塞されている開口５３から外部に流出することはできないので、管継手（換言すれば、患者２４に対するガス出入口部）２３からフェイスマスク５を経由して患者２４に供給される。また、操作者５１が開口５３から指５２を離すと、上述のように多岐管２１内に導入される上記ガス源からのガスが、ＰＥＥＰ調整弁３１の下面を押圧するとともに、患者２４からの呼気も、ガス出入口部２３および多岐管２１の内部（換言すれば、ガス通路５０）を経由して、ＰＥＥＰ調整弁３１の下面を押圧しているために、上記ガスおよび上記呼気が、ＰＥＥＰ調節弁３１と弁座部４２との間隙および呼気排気口部４８を経由して開口５３から外部に流出する可能性が生じる。 3. Operation of the pressure regulator The gas from the gas source passes through the gas supply tube 2, the resuscitation device main body 1 and the gas supply tube 3 shown in FIG. It is introduced into the manifold 21 from the intake gas supply port portion 22. In this case, if an operator 51 such as a doctor closes the opening 53 of the adjustment operation cap 36 with a finger 52 or the like, this gas is generated by the finger 52 or the like even if the PEEP adjustment valve 31 is temporarily opened. Since it cannot flow out from the closed opening 53, it is supplied to the patient 24 via the face mask 5 from the pipe joint (in other words, the gas inlet / outlet portion for the patient 24) 23. Further, when the operator 51 releases the finger 52 from the opening 53, the gas from the gas source introduced into the manifold 21 as described above presses the lower surface of the PEEP adjustment valve 31, and from the patient 24. Since the exhalation also presses the lower surface of the PEEP adjustment valve 31 via the gas inlet / outlet portion 23 and the inside of the manifold 21 (in other words, the gas passage 50), the gas and the exhalation are adjusted to PEEP. There is a possibility that the gas flows out from the opening 53 via the gap between the valve 31 and the valve seat portion 42 and the exhalation exhaust port portion 48.

すなわち、ＰＥＥＰ調整弁３１は、図３に示すように、弾性付勢手段としてのコイルばね３２によって、弁座部４２に弾性的に押圧されている。そして、上記ガス源からのガスおよび患者２４からの呼気によるＰＥＥＰ調整弁３１の下面に対するガス押圧力が、コイルばね３２によるＰＥＥＰ調整弁３１の上面に対する弾性押圧力よりも大きくなると、この大きくなった値に応じた大きさだけ、ＰＥＥＰ調整弁３１が弁座部４２から浮き上がる（換言すれば、上方に離間する）。したがって、上記ガスおよび上記呼気は、ＰＥＥＰ調整弁３１と弁座部４２との間隙、ストッパ部材３３の内部、外筒部材２５の内部空間３７、ばね圧調整ねじ３４の開孔３９および回動型調整作動部材３５の中央開口４６を経由して、開口５３から外部に流出する。 That is, as shown in FIG. 3, the PEEP adjustment valve 31 is elastically pressed against the valve seat portion 42 by a coil spring 32 as an elastic biasing means. Then, when the gas pressing force on the lower surface of the PEEP adjustment valve 31 by the gas from the gas source and the exhalation from the patient 24 becomes larger than the elastic pressing force on the upper surface of the PEEP adjustment valve 31 by the coil spring 32, the pressure increases. The PEEP adjusting valve 31 is lifted from the valve seat 42 by a magnitude corresponding to the value (in other words, separated upward). Therefore, the gas and the exhaled gas are generated by the gap between the PEEP adjusting valve 31 and the valve seat 42, the inside of the stopper member 33, the internal space 37 of the outer cylinder member 25, the opening 39 of the spring pressure adjusting screw 34, and the rotation type. It flows out from the opening 53 through the central opening 46 of the adjustment operating member 35.

コイルばね３２によるＰＥＥＰ調整弁３１の上面に対する弾性押圧力の大きさは、調整キャップ３６を操作することによって、調整することができる。この調整に際しては、まず、図３に示す調整操作キャップ３６を多岐管２１、外筒部材２５（換言すれば、回動型調整作動部材３５）などに対して上方に持ち上げる。この持ち上げは、図４に示すように、調整操作キャップ３６の内周係合部３６ｂが回動型調整作動部材３５の頭部３５ｃに引っ掛かるまで、行うことができる。この場合、調整操作キャップ３６の内周係合部３６ｂが、図４および図５に示すように、回動型調整作動部材３５の外周係合部３５ｄに係合する。したがって、それまでは空回りしていた調整キャップ３６を時計方向または反時計方向に回動させることによって、回動型調整作動部材３５（ひいては、作動軸部３５ａ）がこれと一体となって回動するので、ばね圧調整ねじ３４も同様に回動する。このために、外筒部材２５の雌ねじ部２５ａにねじ込まれているばね調整ねじ３４は、この雌ねじ部２５ａに対してさらにねじ込みまたはねじ戻し（換言すれば、上方または下方にねじ送り）されるので、外筒部材２５に対して上昇または下降する。これによって、コイルばね３２が、図３に示すように長くなるか、あるいは、図４に示すように短くなるので、コイルばね３２によるＰＥＥＰ調整弁３１に対する弁座部４２への弾性押圧力が小さくなるか、あるいは、大きくなる。なお、上述のように指５２などで開口５３を閉塞するときに調整操作キャップ３６の頂面部３６ａを下方に力強く押しても、両方の係合部３６ｂ、３５ｄが不必要に係合することはないので、回動型調整作動部材３５が誤操作によって回動するおそれがない。 The magnitude of the elastic pressing force applied to the upper surface of the PEEP adjustment valve 31 by the coil spring 32 can be adjusted by operating the adjustment cap 36. In this adjustment, first, the adjustment operation cap 36 shown in FIG. 3 is lifted upward with respect to the manifold 21, the outer cylinder member 25 (in other words, the rotation type adjustment operation member 35) and the like. As shown in FIG. 4, this lifting can be performed until the inner peripheral engagement portion 36 b of the adjustment operation cap 36 is hooked on the head portion 35 c of the rotation type adjustment operation member 35. In this case, the inner peripheral engagement portion 36b of the adjustment operation cap 36 engages with the outer peripheral engagement portion 35d of the rotation type adjustment operation member 35 as shown in FIGS. Therefore, by rotating the adjustment cap 36 that has been idle until then, the rotation type adjustment operation member 35 (and thus the operation shaft portion 35a) rotates integrally therewith. Therefore, the spring pressure adjusting screw 34 is similarly rotated. For this purpose, the spring adjustment screw 34 screwed into the female screw portion 25a of the outer cylinder member 25 is further screwed or screwed back (in other words, screwed upward or downward) to the female screw portion 25a. Then, the outer cylinder member 25 is raised or lowered. As a result, the coil spring 32 becomes longer as shown in FIG. 3 or shorter as shown in FIG. 4, so that the elastic pressing force of the coil spring 32 on the valve seat portion 42 against the PEEP adjustment valve 31 is small. Become or grow. Even when the top surface portion 36a of the adjustment operation cap 36 is strongly pressed downward when the opening 53 is closed with the finger 52 or the like as described above, both the engaging portions 36b and 35d are not unnecessarily engaged. Therefore, there is no possibility that the rotation type adjusting operation member 35 is rotated by an erroneous operation.

４、Ｔピース蘇生装置の使用方法
図１〜図７に示すＴピース蘇生装置の使用方法の一例を説明すると、つぎの（ａ）項〜（ｉ）項に記載のとおりである。
（ａ）まず、患者２４へのガス出入口部を構成している管継手２３にテスト肺（図示せず）を取り付ける。このテスト肺は、膨らむことができる風船であってよい。
（ｂ）ついで、図６に示すガス供給チューブ２を蘇生装置本体１に接続する。
（ｃ）ついで、どれぐらいのガスが上記ガス源からＴピース蘇生装置に流入するのかを調整するために、図６に示す流量計６を調整する。
（ｄ）ついで、調整操作キャップ（換言すれば、ＰＥＥＰ調整キャップ）３６の頂面に開口している呼気排気口部４８の上端開口５３を図６に示すように医師などの操作者５１の指（図示の実施例においては、親指）５２で閉塞（すなわち、閉鎖）した状態において、最大開放圧調節摘み１２を選択した値に合わせることによって、最大回路圧を設定する。
（ｅ）ついで、調整操作キャップ３６の開口５３を指５２で閉鎖した状態において、吸気圧調節摘み１３を最大吸気圧に合わせることによって、最大吸気圧（換言すれば、ＰＩＰ）を設定する。
（ｆ）ついで、調整操作キャップ３６の開口５３から指５２を離してから、まず、図３に示す状態にある調整操作キャップ３６を外筒部材２５（ひいては、回動型調整作動部材３５）に対して上方に持ち上げて、調整操作キャップ３６の内周係合部３６ｂを回動型調整作動部材３５の外周係合部３５ｄに係合させる。この場合、調整操作キャップ３６の内周係合部３６ｂが回動型調整作動部材３５の頭部３５ｃに引っ掛かって調整操作キャップ３６が持ち上げられなくなるまで、調整操作キャップ３６を上方に持ち上げればよい。ついで、調整操作キャップ３６を必要に応じて時計方向または反時計方向に指５２で回動させて、回動型調整作動部材３５を必要に応じて時計方向または反時計方向に回動させることによって、ＰＥＥＰ（すなわち、呼気終末陽圧）を望ましい値に設定する。
（ｇ）ついで、患者２４に対するガス出入口部（換言すれば、管継手２３）から前記テスト肺を取り外して、このガス出入口部２３にフェイスマスク５を取り付ける。そして、このフェイスマスク５を図６および図７に示すように患者２４の口元に当てる。
（ｈ）ついで、図６に示すように調整操作キャップ３６の開口５３を指５２で断続的に閉塞することによって、患者２４の呼吸回数を調節する。
（ｉ）上記（ｅ）項に記載した最大吸気圧を変更したい場合には、吸気圧調節摘み１３を再調節する必要がある。そして、これは、患者２４を換気している間に行うことができて、上記テスト肺を再装着する必要がない。 4. How to use the T-piece resuscitation device An example of how to use the T-piece resuscitation device shown in FIGS. 1 to 7 will be described in the following items (a) to (i).
(A) First, a test lung (not shown) is attached to the pipe joint 23 constituting the gas inlet / outlet portion to the patient 24. The test lung may be a balloon that can be inflated.
(B) Next, the gas supply tube 2 shown in FIG. 6 is connected to the resuscitation apparatus main body 1.
(C) Next, in order to adjust how much gas flows from the gas source into the T-piece resuscitation device, the flow meter 6 shown in FIG. 6 is adjusted.
(D) Next, the upper end opening 53 of the exhalation exhaust port portion 48 opened on the top surface of the adjustment operation cap (in other words, the PEEP adjustment cap) 36 is shown in FIG. (In the illustrated embodiment, the maximum circuit pressure is set by adjusting the maximum opening pressure adjustment knob 12 to the selected value in the state of being closed (that is, closed) by 52).
(E) Next, in a state where the opening 53 of the adjusting operation cap 36 is closed with the finger 52, the maximum intake pressure (in other words, PIP) is set by adjusting the intake pressure adjusting knob 13 to the maximum intake pressure.
(F) Next, after releasing the finger 52 from the opening 53 of the adjustment operation cap 36, first, the adjustment operation cap 36 in the state shown in FIG. 3 is attached to the outer cylinder member 25 (and thus the rotation type adjustment operation member 35). On the other hand, the inner peripheral engagement portion 36 b of the adjustment operation cap 36 is engaged with the outer peripheral engagement portion 35 d of the rotation type adjustment operation member 35 by lifting upward. In this case, the adjustment operation cap 36 may be lifted upward until the inner peripheral engagement portion 36b of the adjustment operation cap 36 is caught by the head portion 35c of the rotary adjustment operation member 35 and the adjustment operation cap 36 cannot be lifted. . Next, the adjustment operation cap 36 is rotated clockwise or counterclockwise by the finger 52 as necessary, and the rotation type adjusting operation member 35 is rotated clockwise or counterclockwise as necessary. , PEEP (ie positive end expiratory pressure) is set to a desired value.
(G) Next, the test lung is removed from the gas inlet / outlet portion (in other words, the pipe joint 23) for the patient 24, and the face mask 5 is attached to the gas inlet / outlet portion 23. Then, the face mask 5 is applied to the mouth of the patient 24 as shown in FIGS.
(H) Next, the number of breaths of the patient 24 is adjusted by intermittently closing the opening 53 of the adjustment operation cap 36 with the finger 52 as shown in FIG.
(I) In order to change the maximum intake pressure described in the above item (e), it is necessary to readjust the intake pressure adjusting knob 13 again. This can then be done while the patient 24 is ventilated, without the need to refit the test lung.

Ｂ、第２の実施例
つぎに、本発明の第２の実施例を図８〜図１４を参照しつつ説明する。なお、この第２の実施例における圧力調節装置４およびＴピース蘇生装置は、図１〜図７に示す第１の実施例における圧力調節装置４およびＴピース蘇生装置と基本的には同一の構成を備えるとともに同一の動作を行うことができる。したがって、以下において、第２の実施例における圧力調節装置４およびＴピース蘇生装置が第１の実施例における圧力調整装置４およびＴピース蘇生装置と共通な部分には、両者で同一の符号を付して、その説明を必要に応じて省略する。 B. Second Embodiment Next, a second embodiment of the present invention will be described with reference to FIGS. The pressure regulator 4 and the T piece resuscitation device in the second embodiment are basically the same as the pressure regulator 4 and the T piece resuscitation device in the first embodiment shown in FIGS. And the same operation can be performed. Therefore, in the following description, the same reference numerals are given to parts common to the pressure adjusting device 4 and the T piece resuscitation device in the first embodiment and the pressure adjusting device 4 and the T piece resuscitation device in the first embodiment. Thus, the description thereof is omitted as necessary.

図８〜図１４に示す第２の実施例における圧力調節装置４が図１〜図７に示す第１の実施例における圧力調節装置４と実質的に相違している主な相違点は、つぎの（ａ）項〜（ｄ）項に記載するとおりである。
（ａ）上記第１の実施例においては、ハウジング機構は、図３に示すように、多岐管２１、管継手２２、２３、外筒部材２５および回動型調整作動部材３５から構成されている。これに対し、上記第２の実施例においては、図８に示すように、ハウジング部材としての多岐管６１と、回動型調整作動部材３５とから構成されている。したがって、上記第２の実施例においては、上記第１の実施例における管継手２２、２３は、省略されている。そして、上記第２の実施例においては、分岐管部６１ａおよび下端管部６１ｂによって第１および第２の管継手部（換言すれば、第１および第２の通気口部）が構成されている。
（ｂ）上記第１の実施例においては、分岐管２１とは別に外筒部材２５が設けられている。これに対し、上記第２の実施例においては、ハウジング部材としての分岐管６１は、上記第１の実施例における外筒部材２５を兼ねているので、この外筒部材２５に相当するほぼ円筒状などの筒状部６１ｃを備えている。
（ｃ）上記第２の実施例においては、ＰＥＥＰ調整弁３１の形状が変更され、これにともなって、この調整弁３１の上面に支持軸部３１ａが突設されている。このために、回動型調節作動部材３５の作動軸部３５ａは、支持軸部３１ａを側面から包囲するように、ほぼ筒状に構成されている。そして、この支持軸部３１ａの先端部は、回動型調節作動部材３５によって、軸心方向に摺動自在に支持されている。
（ｄ）上記第１の実施例においては、ばね圧調節ねじ３４の最下降位置を規制するために、ストッパ部材３３が分岐管２１上に配設されている。これに対し、上記第２の実施例においては、ストッパ部材３３は省略されていて、上向きの位置規制用段部６１ｄが多岐管６１の内周面に設けられている。 The main difference between the pressure regulator 4 in the second embodiment shown in FIGS. 8 to 14 and the pressure regulator 4 in the first embodiment shown in FIGS. 1 to 7 is as follows. Of (a) to (d).
(A) In the first embodiment, the housing mechanism is composed of the manifold 21, the pipe joints 22, 23, the outer cylinder member 25, and the rotation type adjusting operation member 35, as shown in FIG. . On the other hand, in the second embodiment, as shown in FIG. 8, the manifold 61 as a housing member and the rotation type adjusting operation member 35 are configured. Therefore, in the second embodiment, the pipe joints 22 and 23 in the first embodiment are omitted. And in the said 2nd Example, the 1st and 2nd pipe joint part (in other words, 1st and 2nd vent hole part) is comprised by the branch pipe part 61a and the lower end pipe part 61b. .
(B) In the first embodiment, the outer cylinder member 25 is provided separately from the branch pipe 21. On the other hand, in the second embodiment, the branch pipe 61 as a housing member also serves as the outer cylinder member 25 in the first embodiment, so that it has a substantially cylindrical shape corresponding to the outer cylinder member 25. And a cylindrical portion 61c.
(C) In the second embodiment, the shape of the PEEP adjustment valve 31 is changed, and accordingly, a support shaft portion 31 a protrudes from the upper surface of the adjustment valve 31. For this purpose, the operating shaft portion 35a of the rotary adjustment operating member 35 is formed in a substantially cylindrical shape so as to surround the support shaft portion 31a from the side surface. The distal end portion of the support shaft portion 31a is supported by the rotation type adjusting operation member 35 so as to be slidable in the axial direction.
(D) In the first embodiment, the stopper member 33 is disposed on the branch pipe 21 in order to restrict the lowest position of the spring pressure adjusting screw 34. On the other hand, in the second embodiment, the stopper member 33 is omitted, and an upward position regulating step 61 d is provided on the inner peripheral surface of the manifold 61.

図８に示す圧力調節装置４の場合には、調節弁３１、反撥用コイルばね３２、ばね圧調節ねじ３４、回動型調整作動部材３５および調整操作キャップ３６を多岐管６１の筒状部６１ｃに上方から順次取り付けることによって、組み立てられることができる。そして、この図８に示す圧力調節装置４は、図１〜図７に示す圧力調節装置４の場合（前記Ａ項における「３、圧力調節装置の動作」参照）と基本的には同様な動作を行うことができる。 In the case of the pressure adjustment device 4 shown in FIG. 8, the adjustment valve 31, the repulsion coil spring 32, the spring pressure adjustment screw 34, the rotation type adjustment operation member 35 and the adjustment operation cap 36 are connected to the cylindrical portion 61 c of the manifold 61. Can be assembled by attaching them sequentially from above. The pressure adjusting device 4 shown in FIG. 8 is basically the same as the case of the pressure adjusting device 4 shown in FIGS. 1 to 7 (see “3. Operation of the pressure adjusting device” in the section A). It can be performed.

図８〜図１４に示す第２の実施例におけるＴピース蘇生装置の場合には、図９〜図１３に示すように、図１４に示すフェイスマスク５が用いられる。このフェイスマスク５は、図６および図７に示すフェイスマスク５と実質的に同一の構成であるが、マスク本体５ａ、リング状空気袋５ｂ、空気出し入れ用パイプ部５ｃおよび筒状吸気ガス用入口部５ｄのそれぞれの形状が、多少相違している。特に、筒状吸気ガス用入口部５ｄの内周囲の形状（換言すれば、内径）および外周囲の形状（換言すれば、外径）のそれぞれが、一回り小さくなっている。そして、雄型としての吸気ガス用入口部５ｄは、圧力調節装置４の雌型としての吸気ガス用出口部６１ａまたは６１ｂに嵌合されて取り付けられることによって、吸気ガス用出口部６１ａまたは６１ｂに連結される。なお、図１０、図１１および図１３において、符号６２は、リング状空気袋５ｂに対する空気の出し入れ時に開閉される弁である。 In the case of the T-piece resuscitation apparatus in the second embodiment shown in FIGS. 8 to 14, the face mask 5 shown in FIG. 14 is used as shown in FIGS. The face mask 5 has substantially the same configuration as the face mask 5 shown in FIGS. 6 and 7, but the mask main body 5a, the ring-shaped air bag 5b, the air inlet / outlet pipe portion 5c, and the cylindrical intake gas inlet Each shape of the part 5d is somewhat different. In particular, the inner peripheral shape (in other words, the inner diameter) and the outer peripheral shape (in other words, the outer diameter) of the cylindrical intake gas inlet portion 5d are slightly smaller. Then, the intake gas inlet portion 5d as the male mold is fitted to and attached to the intake gas outlet portion 61a or 61b as the female mold of the pressure adjusting device 4, so that the intake gas outlet portion 61a or 61b is fitted into the intake gas outlet portion 61a or 61b. Connected. 10, 11, and 13, reference numeral 62 denotes a valve that is opened and closed when air is taken in and out of the ring-shaped air bag 5b.

図８に示す圧力調節装置４においては、多岐管６１の分岐管部６１ａと下端管部６１ｂとが、少なくとも先端部においては、ほぼ同形状に構成されている。具体的には、分岐管６１の分岐管部６１ａと下端管部６１ｂとは、少なくともその先端部においては、それらの内周囲の形状（換言すれば、内径）および外周囲の形状（換言すれば、外径）がほぼ同一になっている。そして、フェイスマスク５の筒状吸気ガス用入口部５ｄの外周囲の形状（換言すれば、外径）は、分岐管部６１ａおよび下端管部６１ｂのそれぞれの内周囲の形状（換言すれば、内径）とほぼ同一になっている。したがって、雄型としての筒状吸気ガス用入口部５ｄは、雌型としての分岐管部６１ａと雌型としての下端管部６１ｂとに選択的に嵌合して取り付けられることによって、これらの管部６１ａまたは６１ｂに選択的に連結されることができる。 In the pressure adjusting device 4 shown in FIG. 8, the branch pipe part 61a and the lower end pipe part 61b of the manifold 61 are configured to have substantially the same shape at least at the tip part. Specifically, the branch pipe portion 61a and the lower end pipe portion 61b of the branch pipe 61 are at least at the tip portion thereof the inner peripheral shape (in other words, the inner diameter) and the outer peripheral shape (in other words, , Outer diameter) is almost the same. The outer peripheral shape (in other words, outer diameter) of the cylindrical intake gas inlet portion 5d of the face mask 5 is the inner peripheral shape of the branch pipe portion 61a and the lower end pipe portion 61b (in other words, The inner diameter is almost the same. Accordingly, the cylindrical intake gas inlet portion 5d as the male mold is selectively fitted and attached to the branch pipe section 61a as the female mold and the lower end pipe section 61b as the female mold. It can be selectively connected to the part 61a or 61b.

図９〜図１１は、雄型としての筒状吸気ガス用入口部５ｄを雌型としての分岐管部６１ａに嵌合して取り付けた状態を示している。そして、図１２および図１３は、雄型としての筒状吸気ガス用入口部５ｄを雌型としての下端管部６１ｂに嵌合して取り付けた状態を示している。なお、図８〜図１４に示す第２の実施例において、図６および図７に示す第１の実施例の場合と同様に、筒状吸気ガス用入口部５ｄの形状（換言すれば、内径および外径）を大きくすることによって、雌型としての筒状吸気ガス用入口部５ｄに雄型としての分岐管部６１ａおよび下端管部６１ｂを選択的に嵌合して取り付けるようにしてもよい。そして、図８〜図１４に示す第２の実施例において、分岐管部６１ａおよび下端管部６１ｂのうちのいずれか一方の形状（換言すれば、内径および外径）を小さくすることによって、筒状吸気ガス用入口部５ｄが上記一方の管部に対しては雌型として、また、他方の管部に対しては雄型として、嵌合して取り付けられるようにしてもよい。 9 to 11 show a state in which the cylindrical intake gas inlet portion 5d as the male mold is fitted and attached to the branch pipe section 61a as the female mold. 12 and 13 show a state in which the cylindrical intake gas inlet portion 5d as the male mold is fitted and attached to the lower end pipe section 61b as the female mold. In the second embodiment shown in FIGS. 8 to 14, the shape of the cylindrical intake gas inlet 5d (in other words, the inner diameter) is the same as in the first embodiment shown in FIGS. In addition, by increasing the outer diameter), the branch pipe portion 61a and the lower end pipe portion 61b as male dies may be selectively fitted and attached to the cylindrical intake gas inlet portion 5d as a female dies. . And in 2nd Example shown in FIGS. 8-14, by reducing the shape (in other words, an internal diameter and an outer diameter) of any one of the branch pipe part 61a and the lower end pipe part 61b, it is a cylinder. The inspiratory gas inlet 5d may be fitted and attached as a female type to the one pipe part and as a male type to the other pipe part.

上述のように、フェイスマスク５の筒状吸気ガス用入口部５ｄを圧力調節装置４の分岐管部６１ａおよび下端管部６１ｂに選択的に嵌合して取り付けることができると、操作者５１は、図１０〜図１１に示す横型での使用状態と、図１２および図１３に示す縦型での使用状態との２通りの使用状態でもって、圧力調節装置４を使用することができる。したがって、操作者５１は、この２通りの使用状態のうちの自分に都合のよい使用状態でもって、圧力調節装置４を使用することができる。なお、図１０は、図６および図７に示す場合と同様に、雄型としての下端管部６１ｂに雌型としてのガス供給チューブ３の先端部を被せて取り付けた場合を示している。そして、図１１は、ガス供給チューブ３の変形例を示すものであって、雌型としての下端管部６１ｂに雄型としてのガス供給チューブ３の先端部を嵌合して取り付けた場合を示している。このために、図１１の場合には、ガス供給チューブ３の先端部に接続用パイプ部６３が設けられている。 As described above, when the cylindrical intake gas inlet portion 5d of the face mask 5 can be selectively fitted and attached to the branch pipe portion 61a and the lower end pipe portion 61b of the pressure adjusting device 4, the operator 51 The pressure adjusting device 4 can be used in two usage states, a horizontal usage state shown in FIGS. 10 to 11 and a vertical usage state shown in FIGS. 12 and 13. Therefore, the operator 51 can use the pressure adjusting device 4 in a usage state that is convenient for one of these two usage states. FIG. 10 shows a case where the lower end pipe portion 61b as the male die is attached with the tip end portion of the gas supply tube 3 as the female die, as in the case shown in FIGS. FIG. 11 shows a modification of the gas supply tube 3 and shows a case where the tip of the gas supply tube 3 as a male mold is fitted and attached to the lower end pipe section 61b as a female mold. ing. For this reason, in the case of FIG. 11, a connecting pipe 63 is provided at the tip of the gas supply tube 3.

図８〜図１４に示す第２の実施例の場合には、上述のように、圧力調節装置４を横型および縦型の２通りの使用状態でもって使用することができる。そして、この点を考慮すると、多岐管６１の中心線（換言すれば、軸心）Ｌ_１が分岐管部６１ａの中心線Ｌ_２と成す角度θ_１は、大よそ９０°であるのが好ましい。このことは、下端管部６１ｂの中心線（換言すれば、軸心）Ｌ_１が分岐管部６１ａの中心線と成す角度θ_２についても、同様である。具体的には、図示の実施例においては、角度θ_１および角度θ_２のそれぞれは、約９０°であるが、実用性の観点から見て一般的に、７５°〜１０５°の範囲であるのが好ましく、８０°〜１００°の範囲であるのがさらに好ましく、８５°〜９５°の範囲であるのが最も好ましい。 In the case of the second embodiment shown in FIGS. 8 to 14, as described above, the pressure adjusting device 4 can be used in two use states of the horizontal type and the vertical type. In consideration of this point, the angle θ ₁ formed by the center line (in other words, the axis) L ₁ of the manifold 61 and the center line L ₂ of the branch pipe portion 61 a is preferably approximately 90 °. . This means that (in other words, axial) center line of the lower pipe section 61b for the angle theta ₂ which L ₁ forms with the center line of the branch pipe portion 61a, is the same. Specifically, in the illustrated embodiment, each of the angles θ ₁ and θ ₂ is about 90 °, but is generally in the range of 75 ° to 105 ° from the viewpoint of practicality. Is more preferable, the range of 80 ° to 100 ° is more preferable, and the range of 85 ° to 95 ° is most preferable.

以上において、本発明の第１および第２の実施例について詳細に説明したが、本発明は、上述の第１および第２の実施例に限定されるものではなく、特許請求の範囲に記載されて発明の趣旨に基づいて各種の変更および修正が可能である。 The first and second embodiments of the present invention have been described in detail above. However, the present invention is not limited to the first and second embodiments described above, and is described in the claims. Various changes and modifications can be made based on the spirit of the invention.

例えば、上述の第１および第２の実施例においては、Ｔピース蘇生装置の圧力調節装置４に本発明を適用したが、Ｔピース蘇生装置以外の蘇生装置、その他の人工呼吸器の圧力調節装置にも、本発明を適用することができる。 For example, in the above-described first and second embodiments, the present invention is applied to the pressure adjustment device 4 of the T-piece resuscitation device. However, the resuscitation device other than the T-piece resuscitation device, and the pressure adjustment device of other ventilators Also, the present invention can be applied.

また、上述の第１および第２の実施例においては、調整作動部材をばね圧調整ねじ３４および回動型調整作動部材３５から構成したが、ばね圧調整ねじ３４と回動型調整作動部材３５とが互いに一体に結合された単一の部材から調整作動部材を構成してもよい。そして、この場合には、調整操作キャップ３６の内周係合部３６ｂおよび／または回動型調整作動部材３５の外周係合部３５ｄを軸心方向に比較的長く構成すればよい。 Further, in the first and second embodiments described above, the adjustment operation member is constituted by the spring pressure adjustment screw 34 and the rotation type adjustment operation member 35. However, the spring pressure adjustment screw 34 and the rotation type adjustment operation member 35 are provided. The adjustment actuating member may be composed of a single member integrally connected to each other. In this case, the inner peripheral engagement portion 36b of the adjustment operation cap 36 and / or the outer peripheral engagement portion 35d of the rotation type adjustment operation member 35 may be configured to be relatively long in the axial direction.

また、上述の第１および第２の実施例においては、調整操作部材３６をほぼキャップ形状に構成したが、ほぼ円板形状などのほぼ板形状に構成してもよい。そして、この場合には、ほぼ板形状の調整操作部材３６を、回動型調整作動部材３５に設けた筒軸に対して、回動可能で軸心方向に摺動可能に構成すればよい。 In the first and second embodiments described above, the adjustment operation member 36 is configured in a substantially cap shape, but may be configured in a substantially plate shape such as a substantially disk shape. In this case, the substantially plate-shaped adjustment operation member 36 may be configured to be rotatable and slidable in the axial direction with respect to the cylindrical shaft provided on the rotation type adjustment operation member 35.

また、上述の第１および第２の実施例においては、弾性付勢手段としてコイルばね３２を用いたが、ほぼＳ字形状などのほぼ波形形状の板ばねや、ゴムなどの弾性材料から成るほぼ柱状体形状などの弾性柱状体を用いることもできる。そして、この場合には、板ばねまたは弾性柱状体の両端部を調整弁３１のばね受け用凹部またはばね受け用上面部４４とばね圧調整ねじ３４のばね受け用凹部４３とにそれぞれ支持させることができる。また、弾性柱状体の一端部に調整弁を兼用させることもできる。 In the first and second embodiments described above, the coil spring 32 is used as the elastic biasing means. However, the coil spring 32 is substantially made of a substantially corrugated leaf spring such as an S-shape or an elastic material such as rubber. An elastic columnar body such as a columnar body shape can also be used. In this case, both ends of the leaf spring or the elastic columnar body are supported by the spring receiving recess or the spring receiving upper surface 44 of the adjustment valve 31 and the spring receiving recess 43 of the spring pressure adjusting screw 34, respectively. Can do. Moreover, an adjustment valve can also be used at one end of the elastic columnar body.

さらに、上述の第１および第２の実施例においては、第２の調整作動部材（換言すれば、ばね圧調整ねじ）３４を外筒部材２５または筒状部６１ｃの内周面に形成した雌ねじ部（換言すれば、送りねじ）２５ａによってねじ送りするようにした。しかし、外筒部材２５または筒状部６１ｃの内周面に形成したカム溝と第２の調整作動部材３４に形成したカムフオロワとによってカム送りするようにしてもよい。 Furthermore, in the first and second embodiments described above, the second adjustment actuating member (in other words, the spring pressure adjusting screw) 34 is formed on the inner peripheral surface of the outer cylinder member 25 or the cylindrical portion 61c. The screw is fed by a portion (in other words, a feed screw) 25a. However, cam feeding may be performed by the cam groove formed on the inner peripheral surface of the outer cylinder member 25 or the cylindrical portion 61 c and the cam follower formed on the second adjustment operation member 34.

本発明をＴピース蘇生装置の圧力調節装置に適用した第１の実施例における斜視図である。（実施例１）It is a perspective view in the 1st example which applied the present invention to the pressure regulation device of a T piece resuscitation device. Example 1 図１に示す圧力調節装置の分解斜視図である。（実施例１）It is a disassembled perspective view of the pressure regulator shown in FIG. Example 1 図１に示す圧力調節装置の縦断面図である。（実施例１）It is a longitudinal cross-sectional view of the pressure regulator shown in FIG. Example 1 図１に示す圧力調節装置の、ＰＥＥＰ設定時における図３と同様の縦断面図である。（実施例１）FIG. 4 is a longitudinal sectional view similar to FIG. 3 at the time of PEEP setting of the pressure adjusting device shown in FIG. 1. Example 1 図４のＩ−Ｉ線に沿った断面図である。（実施例１）It is sectional drawing along the II line | wire of FIG. Example 1 図１に示す圧力調節装置を組み込んだＴピース蘇生装置の使用状態における第１の形態の概略的な斜視図である。（実施例１）It is a schematic perspective view of the 1st form in the use condition of the T piece resuscitation apparatus incorporating the pressure regulation apparatus shown in FIG. Example 1 図６に示すＴピース蘇生装置の使用状態における第２の形態の、蘇生装置本体を省略した概略的な斜視図である。（実施例１）It is the schematic perspective view which abbreviate | omitted the resuscitation apparatus main body of the 2nd form in the use condition of the T piece resuscitation apparatus shown in FIG. Example 1 本発明をＴピース蘇生装置の圧力調節装置に適用した第２の実施例における縦断面図である。（実施例２）It is a longitudinal cross-sectional view in the 2nd Example which applied this invention to the pressure adjustment apparatus of the T piece resuscitation apparatus. (Example 2) 図８に示す圧力調節装置を組み込んだＴピース蘇生装置の第１の使用状態での、蘇生装置本体を省略した斜視図である（実施例２）(Example 2) which is the perspective view which abbreviate | omitted the resuscitation apparatus main body in the 1st use condition of the T piece resuscitation apparatus incorporating the pressure regulator shown in FIG. 図９に示すＴピース蘇生装置の縦断面図である。（実施例２）It is a longitudinal cross-sectional view of the T piece resuscitation apparatus shown in FIG. (Example 2) 図９に示すＴピース蘇生装置の、ガス供給チューブの変形例を示す図１０と同様の縦断面図である。（実施例３）It is the same longitudinal cross-sectional view as FIG. 10 which shows the modification of a gas supply tube of the T piece resuscitation apparatus shown in FIG. (Example 3) 図９に示すＴピース蘇生装置の第２の使用状態での、図９と同様の斜視図である。（実施例２）It is a perspective view similar to FIG. 9 in the 2nd use condition of the T piece resuscitation apparatus shown in FIG. (Example 2) 図１２に示すＴピース蘇生装置の縦断面図である。（実施例２）It is a longitudinal cross-sectional view of the T piece resuscitation apparatus shown in FIG. (Example 2) 図９に示すマウスピースの斜視図である。（実施例２）It is a perspective view of the mouthpiece shown in FIG. (Example 2)

Explanation of symbols

４圧力調節装置
５フェイスマスク
５ｄ第２の吸気ガス用入口部
２１多岐管（ハウジング機構）
２２管継手（吸気ガス用の入口部、第１の通気口部、ハウジング機構）
２３管継手（患者に対するガス出入口部、吸気ガス用の出口部、第２の通気口部、ハウジング機構）
２４患者
２５外筒部材（ハウジング機構）
３１呼気終末陽圧（ＰＥＥＰ）調節弁
３２反撥用コイルばね（弾性付勢手段）
３４ばね圧調整ねじ（第２の調整作動部材、昇降型調整作動部材）
３５回動型調整作動部材（第１の調整作動部材、ハウジング機構）
３５ｃ頭部
３５ｄ外周係合部（第２の係合部）
３６調整操作キャップ（ＰＥＥＰ調整キャップ、調整操作部材）
３６ａ頂面部
３６ｂ内周係合部（第１の係合部）
４２弁座部
４８呼気排気口部（第３の通気口部）
５０ガス通路
５３開口
６１多岐管（ハウジング部材、ハウジング機構）
Ｌ_１第２の通気口部の軸心
Ｌ_２第１の通気口部の軸心
θ_２Ｌ_１がＬ_２に対して成す角度 4 Pressure adjustment device 5 Face mask 5d Second intake gas inlet 21 Manifold (housing mechanism)
22 Pipe joint (inlet part for intake gas, first vent part, housing mechanism)
23 Pipe fitting (gas inlet / outlet for patient, outlet for inspiratory gas, second vent, housing mechanism)
24 Patient 25 Outer cylinder member (housing mechanism)
31 Positive end expiratory pressure (PEEP) control valve 32 Coil spring for repulsion (elastic biasing means)
34 Spring pressure adjusting screw (second adjusting operation member, elevating type adjusting operation member)
35 Rotating type adjustment operation member (first adjustment operation member, housing mechanism)
35c Head 35d Outer peripheral engagement portion (second engagement portion)
36 Adjustment operation cap (PEEP adjustment cap, adjustment operation member)
36a Top surface portion 36b Inner peripheral engagement portion (first engagement portion)
42 Valve seat part 48 Exhalation exhaust part (3rd vent part)
50 Gas passage 53 Opening 61 Manifold (housing member, housing mechanism)
Angle axis theta ₂ L ₁ in L ₁ axis _{L 2} first vent portion of the second vent portion makes with _{L 2}

Claims

In a pressure regulator for use in a ventilator delivering gas to a patient in need of respiratory assistance,
Each of the first and second vent portions has a first vent portion, a second vent portion, and a third vent portion, and one of the first vent portion and the second vent portion is an intake gas. A housing mechanism that can be used as an inlet for the other and the other vent can be used as an outlet for intake gas;
A regulating valve disposed in the housing mechanism so as to face a gas passage between the first vent portion and the second vent portion;
Elastic urging means for elastically urging the control valve to a valve seat provided in the housing mechanism;
An adjustment actuating member that is actuated to adjust the elastic biasing force of the elastic biasing means;
An adjustment operation member that is rotated to operate the adjustment operation member,
When the gas pressure in the gas passage is lower than a predetermined level, the control valve closes the third vent portion, and when the gas pressure in the gas passage is higher than a predetermined level, the control valve The third vent is opened, and the gas in the gas passage is configured to flow through the third vent;
When the adjustment operation member is moved backward with respect to the adjustment operation member, the adjustment operation member is configured to idle with respect to the adjustment operation member, and the adjustment operation member serves as the adjustment operation member. On the other hand, when the adjustment operation member is pulled out, the adjustment operation member is operated by a rotation operation of the adjustment operation member, and the elastic urging force of the elastic urging means is adjusted. Pressure regulator.

The adjustment operation member includes a first adjustment operation member and a second adjustment operation member respectively disposed in the housing mechanism;
The first adjustment operation member is configured to rotate by the rotation operation of the adjustment operation member to rotate the second adjustment operation member,
2. The pressure adjustment according to claim 1, wherein the second adjustment operating member is configured to be operated to adjust an elastic biasing force of the elastic biasing means by the rotation thereof. apparatus.

The adjustment operation member is an adjustment operation cap,
The pressure adjusting device according to claim 2, wherein the adjustment operation cap is put on a head of the first adjustment operation member.

The adjusting operation member includes a first engaging portion;
The adjustment actuating member includes a second engaging portion;
When the adjustment operation member is in a backward movement position where the adjustment operation member moves backward with respect to the adjustment operation member, the first engagement portion of the adjustment operation member and the second engagement portion of the adjustment operation member And the adjustment operation member is configured to idle with respect to the adjustment operation member, and the adjustment operation member is pulled from the backward movement position with respect to the adjustment operation member. When released, the first engagement portion and the second engagement portion engage with each other, whereby the rotation operation of the adjustment operation member is transmitted to the adjustment operation member, and the adjustment operation is performed. 4. The pressure adjusting device according to claim 1, wherein the operating member is configured to operate.

The pressure adjusting device according to any one of claims 1 to 4, wherein an opening connected to the third vent portion is formed in a top surface portion of the adjusting operation member.

A respirator, wherein the gas pressure is adjusted by the pressure adjusting device according to any one of claims 1 to 5.

A face mask having a second intake gas inlet that can be connected to the intake gas outlet of the pressure regulator;
Both of the first vent part and the second vent part of the pressure adjusting device are configured to selectively connect the second intake gas inlet part of the face mask,
Of the first and second vent portions, the vent portion connected to the second intake gas inlet portion functions as the intake gas outlet portion of the pressure regulator. In addition, the ventilator of the other side is configured to function as the inlet portion for the intake gas of the pressure adjusting device.

The angle formed by the axis of the first vent part of the pressure adjusting device with respect to the axis of the second vent part is in a range of 85 ° to 95 °. The ventilator described in.