JPS5962061A - Anesthetic gasifier control apparatus - Google Patents
Anesthetic gasifier control apparatusInfo
- Publication number
- JPS5962061A JPS5962061A JP17372682A JP17372682A JPS5962061A JP S5962061 A JPS5962061 A JP S5962061A JP 17372682 A JP17372682 A JP 17372682A JP 17372682 A JP17372682 A JP 17372682A JP S5962061 A JPS5962061 A JP S5962061A
- Authority
- JP
- Japan
- Prior art keywords
- concentration
- anesthesia
- vaporizer
- anesthetic gas
- comparator
- 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
Links
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D21/00—Control of chemical or physico-chemical variables, e.g. pH value
- G05D21/02—Control of chemical or physico-chemical variables, e.g. pH value characterised by the use of electric means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/10—Preparation of respiratory gases or vapours
- A61M16/104—Preparation of respiratory gases or vapours specially adapted for anaesthetics
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】 近年、麻酔方式として閉鎖式の応用が進められている。[Detailed description of the invention] In recent years, the application of closed anesthesia methods has been progressing.
この方式は、従来の開放式が麻酔ガスの患者吸入後の残
りが手術室に放出され、医師らへの健康上の影響がｅ；
Ｌａされること、長時間にわたるガスの消費コストが
比１咬的多くなることなどの欠点を有することに較べ、
麻酔ガス路をほぼ閉鎖するのて」−記欠点をほぼとり除
くことができる。This method is different from the conventional open type, in which the remaining anesthetic gas is released into the operating room after the patient inhales, which poses a health risk to the doctors.
Compared to conventional methods, which have disadvantages such as being exposed to heat and having relatively high gas consumption costs over a long period of time,
Since the anesthetic gas path is substantially closed, the drawbacks described above can be almost eliminated.
しかるに閉鎖式麻酔は麻酔ガスの特に・・ロタン等の気
化麻酔薬濃度の制御が蛯かしく、広く応用されるための
最大の隘路となっている。すなわちハロタン等を運ぶキ
ャリヤガスが患者の新陳代謝により減少しノ・ロタン濃
度が徐々に相対的に濃くなり、・・ロタンの供給源であ
る気化器の濃度目盛と患者呼吸部の濃度が著しく異なっ
てくる。又キャリヤガス量が開放式に比し少量なので気
化器内での気化が安定さを欠くようになるためもあって
気化器目盛りが７・ロタン等の実際の濃度とまったく相
関をもたなくなる。However, in closed anesthesia, it is difficult to control the concentration of anesthetic gas, especially vaporized anesthetics such as rotane, and this is the biggest obstacle to widespread application. In other words, the carrier gas that carries halothane etc. decreases due to the patient's metabolism, and the concentration of rotane gradually becomes relatively high, resulting in a marked difference between the concentration scale of the vaporizer, which is the source of rotane, and the concentration in the patient's breathing area. come. Furthermore, since the amount of carrier gas is smaller than that of the open type, the vaporization within the vaporizer becomes unstable, and the vaporizer scale has no correlation with the actual concentration of 7. rotane or the like.
この問題点を解決するため近年開発された麻酔ガス濃度
検出器をガス流路中に設置し望まれる濃度に気化器を目
盛に関係なく適宜調節する方式も試みられたがその手間
は他に多くの業務を持つ麻酔医師にとって過重なもので
あった。In order to solve this problem, attempts have been made to install a recently developed anesthetic gas concentration detector in the gas flow path and adjust the vaporizer to the desired concentration regardless of the scale, but this requires a lot of effort. This was an extremely burdensome task for anesthetists who were responsible for
本発明は開放式はもちろん数々の利点を持つ閉鎖式麻酔
方式をほとんど人的労力なしに正確に実行しうる手段を
提供することを目的とするものである。The object of the present invention is to provide a means for accurately carrying out an open anesthesia system, as well as a closed anesthesia system, which has many advantages, with little human effort.
その目的を実現するために本発明では、麻酔ガス濃Ｕ皆
例信号と同濃度指示信号を比較する比較器を内蔵しその
比較器からの信号により駆動され、気化器濃゛度調゛□
゛ｉ軸と緊密に接続された原動機を採用し構成された気
化器自動制御装置についての技術開示を行なう。In order to achieve this purpose, the present invention has a built-in comparator that compares the anesthetic gas concentration U total signal and the same concentration indication signal, and is driven by the signal from the comparator to adjust the vaporizer concentration.
A technical disclosure will be made regarding an automatic carburetor control device configured using a prime mover closely connected to the i-axis.
次に図面を参照して本発明の詳細な説明を行なう。５０
１しま麻酔ガス流路であり内部を流れるキャリヤガスは
気化器５０２を通ることによりハロタン等が気化され麻
酔ガスとして患者に投与されるが、投与される近辺の流
路に麻酔ガス検知器５０３が設置されており麻酔ガス中
の例えばハロタン濃度を検知している。麻酔ガス検知器
５０６からの信号は麻酔ガス濃度側５０４にて増巾、処
理され麻酔ガスａ度比例信号を発する。一方麻酔ガス濃
度指示器５０５は麻酔医の意志により所望の麻酔ガス濃
度が設定されると麻酔ガスａ度指示信号を出１−０
す、上述べた二つの信号、すなわち麻酔ガス濃度比例信
号と同濃度指示信号はいずれもいわゆるアナログ信号て
もデジタル信号のどちらでもさしつかえないが、どちら
かにそろえた方が後の処理が容易となる。二つの信号は
５０６比較器に導びかれその大小が比較される。比較器
５０６はアナログコンパレータ、マグニチュードコンパ
レータ等で構成される。The present invention will now be described in detail with reference to the drawings. 50
This is a one-striped anesthetic gas flow path, and the carrier gas flowing inside passes through a vaporizer 502 to vaporize halothane, etc., and is administered to the patient as an anesthetic gas. It is installed to detect, for example, the concentration of halothane in anesthetic gas. The signal from the anesthetic gas detector 506 is amplified and processed on the anesthetic gas concentration side 504 to generate an anesthetic gas a degree proportional signal. On the other hand, the anesthetic gas concentration indicator 505 outputs an anesthetic gas concentration indication signal of 1-0 when the desired anesthetic gas concentration is set according to the will of the anesthetist. The concentration indicating signals may be either so-called analog signals or digital signals, but later processing will be easier if they are set to either one. The two signals are led to a 506 comparator and compared in magnitude. The comparator 506 is composed of an analog comparator, a magnitude comparator, and the like.
比較器５０６が発生ずる麻酔ガスａ度比例信号と同濃度
指示信号の大小及び較差信号は、モータ５０７に送られ
る。すなわち濃度比例信号が濃度指示信号より大きけれ
ばその差分だけ気化器５０２をしぼる方向へ、その逆な
ら気化器５０２を開（方向へ動くよう信号を与える。The magnitude and difference signal of the anesthetic gas a degree proportional signal and the same concentration indication signal generated by the comparator 506 are sent to the motor 507. That is, if the concentration proportional signal is larger than the concentration instruction signal, a signal is given to cause the vaporizer 502 to be closed by the difference, and vice versa, to open the vaporizer 502.
本例では原動機に電気モータを使用したが必要に応じ原
動機は空気モータ、内燃見開等でも同様の機能をはたす
。In this example, an electric motor is used as the prime mover, but if necessary, an air motor, an internal combustion spreadsheet, etc. may be used as the prime mover to perform the same function.
モータ５０７の回転軸につけられた歯車Ａ３０８ａを介
し気化器５０２につげられた歯車Ｂ５０８ｂが歯数に比
例して回軸される。A gear B 508b connected to the carburetor 502 is rotated through a gear A 308a attached to the rotating shaft of the motor 507 in proportion to the number of teeth.
比較器５０６かもの信号は麻酔ガス濃度計５０４の発生
ずる信号の時間遅れを見込み、遅延させるのが効果的で
ある。It is effective to delay the signal of the comparator 506 in anticipation of the time delay of the signal generated by the anesthetic gas concentration meter 504.
以］二のべた構成によれば指示器にａ度を入力するのみ
でほとんど人的労力なしに正確な麻酔ガスの実濃度を保
てるので特に閉鎖式麻酔を行なう際、効果が大きい。According to the second configuration, the actual concentration of anesthetic gas can be maintained accurately with almost no human effort by simply inputting the degree a into the indicator, which is particularly effective when performing closed anesthesia.
、図は本発明の麻酔用気化器の構成を示すブロック図で
ある。
５０２ ・・・気化器、
５０３ ・・・麻酔ガス検知器、
５０４ ・・麻酔ガス濃度計、
５０５・・・・麻酔ガス濃度指示器、
５０６・・・・比較器、
５０７ ・モ〜り。, is a block diagram showing the configuration of the anesthesia vaporizer of the present invention. 502... Vaporizer, 503... Anesthetic gas detector, 504... Anesthetic gas concentration meter, 505... Anesthetic gas concentration indicator, 506... Comparator, 507 - Mori.
Claims (1)
たガス濃度検出器からの麻酔ガスａ度比例信号と麻酔ガ
ス濃度指示器からの麻酔ガス濃度指示信号を比較する比
較器と、気化器ａ度調整軸に接続された原動機とを具備
し、前記比較器からの出力信号により前記原動機を制御
することを特徴とする麻酔用気化器制御装置。An anesthesia vaporizer control device includes a comparator that compares an anesthesia gas a degree proportional signal from a gas concentration detector provided in a gas flow path and an anesthesia gas concentration indication signal from an anesthesia gas concentration indicator, and a vaporizer. 1. An anesthesia vaporizer control device, comprising: a prime mover connected to an a-degree adjustment shaft, and controlling the prime mover by an output signal from the comparator.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17372682A JPS5962061A (en) | 1982-10-01 | 1982-10-01 | Anesthetic gasifier control apparatus |
| GB08326396A GB2129980A (en) | 1982-10-01 | 1983-10-03 | Anaesthetic gas strength control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17372682A JPS5962061A (en) | 1982-10-01 | 1982-10-01 | Anesthetic gasifier control apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5962061A true JPS5962061A (en) | 1984-04-09 |
Family
ID=15965999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17372682A Pending JPS5962061A (en) | 1982-10-01 | 1982-10-01 | Anesthetic gasifier control apparatus |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPS5962061A (en) |
| GB (1) | GB2129980A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS618059A (en) * | 1984-06-25 | 1986-01-14 | 佐藤 暢 | Injection type anesthetic evaporator |
| US4765665A (en) * | 1986-01-23 | 1988-08-23 | Nissan Motor Co., Ltd. | Bumper structure |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB798561A (en) * | 1955-01-27 | 1958-07-23 | Arnold St Jacques Lee | Improvements in or relating to apparatus for the administration of substances to living subjects |
| US3465753A (en) * | 1966-02-18 | 1969-09-09 | Milab Inc | Gas analyzer-controller equipment |
| DE1271430C2 (en) * | 1966-05-05 | 1979-09-20 | Moyat, Peter E, Dr.phil.nat, 6000 Bergen-Enkheim; Vonderschmitt, Helmut, Drmed, 6078 Neu-Isenburg | DEVICE FOR CONTINUOUS DETERMINATION OF THE CONTENT OF ORGANIC ANESTHETIC VACUUM IN BREATHING GAS |
-
1982
- 1982-10-01 JP JP17372682A patent/JPS5962061A/en active Pending
-
1983
- 1983-10-03 GB GB08326396A patent/GB2129980A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS618059A (en) * | 1984-06-25 | 1986-01-14 | 佐藤 暢 | Injection type anesthetic evaporator |
| JPH0566154B2 (en) * | 1984-06-25 | 1993-09-21 | Noboru Sato | |
| US4765665A (en) * | 1986-01-23 | 1988-08-23 | Nissan Motor Co., Ltd. | Bumper structure |
Also Published As
| Publication number | Publication date |
|---|---|
| GB8326396D0 (en) | 1983-11-02 |
| GB2129980A (en) | 1984-05-23 |
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