WO2015030622A1 - Appareil pour narcose respiratoire avec doseur d'anesthétiques liquides - Google Patents

Appareil pour narcose respiratoire avec doseur d'anesthétiques liquides Download PDF

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Publication number
WO2015030622A1
WO2015030622A1 PCT/RU2013/000756 RU2013000756W WO2015030622A1 WO 2015030622 A1 WO2015030622 A1 WO 2015030622A1 RU 2013000756 W RU2013000756 W RU 2013000756W WO 2015030622 A1 WO2015030622 A1 WO 2015030622A1
Authority
WO
WIPO (PCT)
Prior art keywords
anesthetic
tube
liquid
control unit
electronic control
Prior art date
Application number
PCT/RU2013/000756
Other languages
English (en)
Russian (ru)
Inventor
Борис Владимирович СМОЛЯРОВ
Евгений Алексеевич ГОНЧАРОВ
Original Assignee
Smolyarov Boris Vladimirovich
Goncharov Evgeny Alexeevich
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Smolyarov Boris Vladimirovich, Goncharov Evgeny Alexeevich filed Critical Smolyarov Boris Vladimirovich
Priority to PCT/RU2013/000756 priority Critical patent/WO2015030622A1/fr
Publication of WO2015030622A1 publication Critical patent/WO2015030622A1/fr

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Classifications

    • 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
    • A61M16/14—Preparation of respiratory gases or vapours by mixing different fluids, one of them being in a liquid phase
    • A61M16/18—Vaporising devices for anaesthetic preparations
    • 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
    • A61M16/14—Preparation of respiratory gases or vapours by mixing different fluids, one of them being in a liquid phase
    • A61M16/18—Vaporising devices for anaesthetic preparations
    • A61M16/183—Filling systems
    • 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
    • A61M16/20—Valves specially adapted to medical respiratory devices
    • A61M16/201—Controlled valves
    • A61M16/202—Controlled valves electrically actuated
    • 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
    • A61M16/0003—Accessories therefor, e.g. sensors, vibrators, negative pressure
    • A61M2016/0027—Accessories therefor, e.g. sensors, vibrators, negative pressure pressure meter
    • 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
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/33—Controlling, regulating or measuring
    • A61M2205/3306—Optical measuring 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
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/33—Controlling, regulating or measuring
    • A61M2205/3379—Masses, volumes, levels of fluids in reservoirs, flow rates

Definitions

  • Narcotic respiratory apparatus with a dispenser of liquid anesthetics
  • the present invention relates to medical equipment and can be used to create anesthesia-respiratory equipment.
  • Known anesthesia breathing apparatus containing a ventilation unit, a unit for forming gas anesthetics and a unit for forming liquid anesthetics, for example, an artificial lung ventilation apparatus “Phase-5H” with an anesthetic prefix “Phase-PN”, as well as an Phase-23 stethiological complex (manufacturer - Ural Instrument-Making Plant OJSC, Ekaterinburg, RU).
  • an artificial lung ventilation apparatus Phase-5H
  • an anesthetic prefix Phase-23 stethiological complex
  • the method for dispensing anesthetics and a device for implementing this method are described in patent RU N ° 2332242 IPC A61M16 / 01 with priority dated 23.03.2006.
  • a device for dispensing liquid anesthetics includes the separation of the main stream of carrier gas into two streams, one of which periodically passes through a bubbler evaporator and is saturated to a maximum concentration and subsequently mixes with the second stream, thus providing the desired concentration.
  • the inhalation device contains a syringe dispenser and a stepper motor, which ensures the piston movement of this syringe according to a given program.
  • the disadvantage of this device is the difficulty of ensuring the required accuracy of the concentration of anesthetic in the entire concentration range with a widely changing flow of respiratory carrier gas, as well as providing the necessary stock of liquid anesthetic.
  • Anesthesia-breathing apparatus is also known according to the patent for the useful model RU N ° 99707 IPC ⁇ 61 ⁇ 31 / 02 with priority dated 06.16.2010 - PROTOTYPE containing a dosage unit for liquid evaporating anesthetics.
  • the dispenser of this apparatus is made in the form of a vertically arranged metering tube of small diameter, to the upper end of which an electronic pressure sensor is connected, and to the lower end is connected via the output electromagnetic shut-off-through valve a line connected to the mixing and evaporation chamber, as well as inlet electromagnetic shut-off valve - a line connected to a container for liquid anesthetic, and the liquid from this container flows to the metering tube by gravity.
  • the disadvantage of this technical solution is the possible instability of ensuring the required accuracy of the concentration of the anesthetic due to the initial level of anesthetic in the dosing tube changing during operation (due to a change in the hydrostatic pressure at the inlet to the dispenser, and also because of the saturation of the upper part of the dosing tube with vapors liquid anesthetic or a possible violation of the tightness of this container during prolonged use).
  • the disadvantage of this technical solution is the complexity of the primary pumping of the “dry” hydraulic system (due to the really low hydrostatic pressure, which is provided only due to the difference in the heights of the container relative to the dispenser, which leads to an increase in the preparation time of the device for operation).
  • the aim of the present invention is to improve the accuracy of adjusting the concentration of liquid anesthetics in a wide range of changes in the concentrations and flows of the carrier gas, as well as providing the ability to quickly fill the device’s hydraulic lines (pumping from the air) during the initial start-up of the system, then There is a reduction in the preparation time for the device.
  • the anesthesia-respiratory device containing an anesthetic container, a mixing and evaporation chamber, a liquid anesthetic dispenser in the form of a vertical tube, the upper end of which is connected to a pressure sensor, and the lower end is connected to the input and according to the invention, equipped with a microcompressor connected to an anesthetic container, an output shut-off-pass solenoid valve, an electronic control unit to which said electromagnetic valves and a pressure sensor are electrically connected and connected to an electronic control unit, performed nennym be software change management and performance microcompressor solenoid valves for simultaneously opening them during the initial start-up and independent In- 75 during operation, and the upper end of the tube of the liquid anesthetics dispenser is additionally connected by a pneumatic line via an electromagnetic shut-off valve with a mixing and evaporation chamber of respiratory gases, and the electromagnetic valve itself is electrically connected to the electronic control unit, and
  • the tube of the liquid anesthetic dispenser is made of a material transparent for infrared radiation, and an infrared optoelectronic sensor is installed on the outside of this tube, connected to the electronic control unit and fixed on the tube at a level exceeding the level of liquid anesthetic output in the mixing
  • the attached figure shows a diagram of the invention.
  • a container for liquid anesthetic 1 is connected by a hydraulic line to a tube 2 of a liquid anesthetic dispenser (by means of an inlet shut-off solenoid valve 3), and a micro-compressor 4 is connected to the upper point of the container for liquid anesthetic 1 by means of a pneumatic line with electric drive.
  • a microcompressor can use For example, a membrane microcompressor with a vibrating electromagnetic drive.
  • the performance of the micro-compressor 4 is controlled by its electrical connection with the electronic control unit 5, which, according to a predetermined program, changes, for example, the frequency of the electrical pulses supplied to the electromagnetic vibro-drive of the micro-compressor 4, and thus affects its performance.
  • the upper part of the tube 2 is connected by a pneumatic line with a pressure sensor 6, as well as with a mixing and evaporation chamber 7 (by means of a calibration solenoid valve 8).
  • the lower end of the tube 2 is connected to the mixing-evaporation chamber 7 by means of an output shut-off-pass solenoid valve 9.
  • Tube 2 is made of a material transparent to infrared radiation, and an infrared optoelectronic sensor 10 is mounted on the outside of this tube, which is fixed relative to the tube 2 at a level exceeding the level of liquid anesthetic entering the mixing and evaporation chamber 7.
  • the electronic control unit gives a command to simultaneously open both solenoid valves 3 and 9, and under the influence of the air pressure pumped by the microcompressor 4 into the tank for liquid anesthetic 1, the anesthetic quickly fills all hydraulic lines - rales, displacing air from them, after which the system is ready for a normal duty cycle.
  • the claimed invention operates as follows: The principle of operation of the dispenser itself is carried out in the same manner as described in the prototype patent (RU N ° 99707), namely, the electronic unit, according to a predetermined algorithm (based on the use of the well-known thermodynamic law for evaporating liquids), controls the electromagnetic valves 3 and 9 as follows: first, the inlet air-tight solenoid valve 3 is opened (while the output air-tight solenoid valve 9 is closed), and the liquid anesthetic from the tank I anesthetic liquid 1 by air pressure generated above the surface 4 microcompressors anesthetic za- Tek into the tube 2 by compressing the air that was in the tube 2, to the defined trunk remote pressure sensed by pressure sensor 6, forming a "WHO-stuffy cushion".
  • the input shut-off solenoid valve 3 closes, and the output shut-off-solenoid valve 9 opens, and the liquid anesthetic from the tube 2 under pressure compressed in the air cushion in the upper part of the tube 2, the air begins to be squeezed out into the mixing and evaporation chamber 7 (where it evaporates in the stream of respiratory gas).
  • the air pressure in the upper part of the tube 2 in the air cushion begins to decrease, which is recorded by the sensor 6 and enters the electronic control unit 5.
  • the decrease in pressure in the air cushion in the upper part of the tube 2 in accordance with the laws of gas dynamics, is proportional to the increase in the volume of air part of the tube 2 due to the flow of fluid flowing from the lower part of the tube 2, and therefore, when the air cushion pressure decreases to a level that determines the required volume of the displaced fluid (necessary to ensure the evaporation of anesthetics Single with a given concentration) of the output bandwidth shutoff solenoid valve 9 is closed and the inlet shutoff Bypass solenoid valve 3 opens and the whole process is repeated 165.
  • the electronic control unit sends a command to simultaneously
  • this sensor is activated and gives a command (via electronic control unit 5) to close the electric solenoid valves 8 and 9, and thus, the state of the system is automatically recorded again at the initial ("zero") level. 195 Then the operation of the device continues according to the algorithm described above.
  • tanks, chambers and highways are made of stainless steel
  • tube 2 is made of glass or polyurethane plastic.

Landscapes

  • Health & Medical Sciences (AREA)
  • Anesthesiology (AREA)
  • Emergency Medicine (AREA)
  • Pulmonology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)

Abstract

L'invention se rapporte au domaine des techniques médicales et permet d'augmenter la précision de l'ajustement de la concentration de vapeurs d'anesthétiques liquides et diminuer le temps de préparation de l'appareil en vue de son fonctionnement. L'appareil comprend un récipient pour anesthésique, une chambre de mélange et d'évaporation, un doseur d'anesthétiques liquides sous forme d'un tube vertical, un capteur de pression, et des vannes électromagnétiques. L'appareil comprend également un micro-compresseur connecté au récipient pour anesthésique et relié à une unité de commande électronique capable de modifier par programmation le rendement du micro-compresseur et de commander les vannes électromagnétiques. L'extrémité supérieure du tube du doseur est également connectée par une conduite pneumatique et via une vanne électromagnétique à la chambre de mélange et d'évaporation. Le tube du doseur est fait d'un matériau transparent au rayonnement infrarouge, et sur son côté externe se trouve un capteur optoélectronique infrarouge relié à l'unité de commande électronique et fixé sur le tube à un niveau dépassant le niveau de sortie de l'anesthésique liquide dans la cambre de mélange et d'évaporation.
PCT/RU2013/000756 2013-09-02 2013-09-02 Appareil pour narcose respiratoire avec doseur d'anesthétiques liquides WO2015030622A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/RU2013/000756 WO2015030622A1 (fr) 2013-09-02 2013-09-02 Appareil pour narcose respiratoire avec doseur d'anesthétiques liquides

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/RU2013/000756 WO2015030622A1 (fr) 2013-09-02 2013-09-02 Appareil pour narcose respiratoire avec doseur d'anesthétiques liquides

Publications (1)

Publication Number Publication Date
WO2015030622A1 true WO2015030622A1 (fr) 2015-03-05

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Family Applications (1)

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Country Status (1)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU53154U1 (ru) * 2005-09-01 2006-05-10 Общество с ограниченной ответственностью "СТАРТ" Анестезиологический комплекс
US20100212668A1 (en) * 2009-02-20 2010-08-26 Baxter International Inc. Inhaled anesthetic agent therapy and delivery system
US20100269820A1 (en) * 2007-06-13 2010-10-28 Lars Danielsen safety system for a breathing apparatus for delivering an anesthetic agent
RU99707U1 (ru) * 2010-06-16 2010-11-27 Общество с ограниченной ответственностью "КБ Медсистем" Наркозно-дыхательный аппарат

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU53154U1 (ru) * 2005-09-01 2006-05-10 Общество с ограниченной ответственностью "СТАРТ" Анестезиологический комплекс
US20100269820A1 (en) * 2007-06-13 2010-10-28 Lars Danielsen safety system for a breathing apparatus for delivering an anesthetic agent
US20100212668A1 (en) * 2009-02-20 2010-08-26 Baxter International Inc. Inhaled anesthetic agent therapy and delivery system
RU99707U1 (ru) * 2010-06-16 2010-11-27 Общество с ограниченной ответственностью "КБ Медсистем" Наркозно-дыхательный аппарат

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