GB798561A - Improvements in or relating to apparatus for the administration of substances to living subjects - Google Patents

Improvements in or relating to apparatus for the administration of substances to living subjects

Info

Publication number
GB798561A
GB798561A GB35613/55A GB3561355A GB798561A GB 798561 A GB798561 A GB 798561A GB 35613/55 A GB35613/55 A GB 35613/55A GB 3561355 A GB3561355 A GB 3561355A GB 798561 A GB798561 A GB 798561A
Authority
GB
United Kingdom
Prior art keywords
air
anaesthetic
valve
pressure
gas
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.)
Expired
Application number
GB35613/55A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ARNOLD ST JACQUES LEE
Original Assignee
ARNOLD ST JACQUES LEE
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 ARNOLD ST JACQUES LEE filed Critical ARNOLD ST JACQUES LEE
Publication of GB798561A publication Critical patent/GB798561A/en
Expired legal-status Critical Current

Links

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
    • 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
    • A61M16/08—Bellows; Connecting tubes ; Water traps; Patient circuits
    • A61M16/0816—Joints or connectors
    • A61M16/0841—Joints or connectors for sampling
    • A61M16/085—Gas sampling
    • 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
    • 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
    • A61M2230/00—Measuring parameters of the user
    • A61M2230/40—Respiratory characteristics
    • A61M2230/43—Composition of exhalation
    • 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
    • A61M2230/00—Measuring parameters of the user
    • A61M2230/40—Respiratory characteristics
    • A61M2230/43—Composition of exhalation
    • A61M2230/432—Composition of exhalation partial CO2 pressure (P-CO2)

Abstract

798,561. Respiratory appliances. LEE, A. ST. J. Dec. 12, 1955 [Jan. 27, 1955], No. 35613/55. Class 81 (2). In order to relate the concentration of a substance supplied to a patient to the body condition, e.g. the carbon dioxide or anaesthetic content, samples of exhaled air are taken and the resultant measurement controls the supply of the substance. In the forced respiration apparatus shown in Fig. 1, oxygen and nitrous oxide through pipes 21, 20 respectively, are mixed at 24 and passed through a variable pressure regulator 30 to a manifold 10 in which a valve 50 is moved between seatings 11 and 13, to provide the respiration cycle. The valve is moved by air pressure admitted to a cylinder 60 under the control of a timing mechanism driven by a constant speed motor. When the valve 50 is against its upper seating 13 the gas mixture passes through the endotracheal tube 14 to the patient and when it is against the lower seating 11 the lungs are vented to atmosphere. A collapsible tube 44 in a closed chamber 45 is normally compressed by air admitted through pipe 85b, but the timing means causes the pressure to be released for a short interval at the end of each exhalation so that through oneway valves 46, 47 a sample of the air is sucked into tube 44 and passed to the CO2 analyser 42. This device gives a signal voltage, the magnitude of which depends on the proportion of CO2 present and this is compared in a circuit 120 with adjustable standard voltage obtained from source 109 to control servomotor 122 and adjust the pressure regulator 30 as necessary. In an application of the invention to an anaesthetic appliance (see Fig. 3, not shown), a gas analyser for determining the proportion of anaesthetic in the exhaled air is connected permanently in the breathing circuit but its output is only made effective to control the supply of gas through servomotors by a pressure-sensitive switch which responds to the change from exhalation to inhalation.
GB35613/55A 1955-01-27 1955-12-12 Improvements in or relating to apparatus for the administration of substances to living subjects Expired GB798561A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US798561XA 1955-01-27 1955-01-27

Publications (1)

Publication Number Publication Date
GB798561A true GB798561A (en) 1958-07-23

Family

ID=22153229

Family Applications (1)

Application Number Title Priority Date Filing Date
GB35613/55A Expired GB798561A (en) 1955-01-27 1955-12-12 Improvements in or relating to apparatus for the administration of substances to living subjects

Country Status (1)

Country Link
GB (1) GB798561A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1980000917A1 (en) * 1978-11-13 1980-05-15 Department Paediatrics Med Servo-control of arterial oxygen tension
FR2517961A1 (en) * 1981-12-11 1983-06-17 Synthelabo Biomedical METHOD AND DEVICE FOR CONTROLLING ARTIFICIAL RESPIRATION
GB2129980A (en) * 1982-10-01 1984-05-23 Citizen Watch Co Ltd Anaesthetic gas strength control system
US4905685A (en) * 1987-04-14 1990-03-06 Siemens Aktiengesellschaft Inhalation anaesthesia equipment
WO2003053503A1 (en) * 2001-12-06 2003-07-03 Alaris Medical Systems, Inc. Co2 monitored drug infusion system
EP1573450A2 (en) * 2002-05-13 2005-09-14 Scott Laboratories, Inc. System and method for transparent early detection, warning, and intervention during a medical procedure
AU2008201331B2 (en) * 2001-12-06 2010-06-10 Carefusion 303, Inc. Co2 monitored drug infusion system
CN105079928A (en) * 2014-04-03 2015-11-25 全健康网络有限公司 Apparatus for providing controlled flow of inhalation-air
CN109444218A (en) * 2018-12-17 2019-03-08 西南科技大学 Improved ambient condition simulator and application method in a kind of reaction of oxidation kinetics

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1980000917A1 (en) * 1978-11-13 1980-05-15 Department Paediatrics Med Servo-control of arterial oxygen tension
FR2517961A1 (en) * 1981-12-11 1983-06-17 Synthelabo Biomedical METHOD AND DEVICE FOR CONTROLLING ARTIFICIAL RESPIRATION
EP0082041A1 (en) * 1981-12-11 1983-06-22 Synthelabo Method and device for artificial-respiration control
GB2129980A (en) * 1982-10-01 1984-05-23 Citizen Watch Co Ltd Anaesthetic gas strength control system
US4905685A (en) * 1987-04-14 1990-03-06 Siemens Aktiengesellschaft Inhalation anaesthesia equipment
AU2008201331B2 (en) * 2001-12-06 2010-06-10 Carefusion 303, Inc. Co2 monitored drug infusion system
WO2003053503A1 (en) * 2001-12-06 2003-07-03 Alaris Medical Systems, Inc. Co2 monitored drug infusion system
EP1642608A1 (en) 2001-12-06 2006-04-05 Alaris Medical Systems, Inc. CO2 monitored drug infusion system
AU2002351275B2 (en) * 2001-12-06 2007-12-20 Carefusion 303, Inc. C02 monitored drug infusion system
EP1573450A2 (en) * 2002-05-13 2005-09-14 Scott Laboratories, Inc. System and method for transparent early detection, warning, and intervention during a medical procedure
EP1573450A4 (en) * 2002-05-13 2008-03-26 Scott Lab Inc System and method for transparent early detection, warning, and intervention during a medical procedure
CN105079928A (en) * 2014-04-03 2015-11-25 全健康网络有限公司 Apparatus for providing controlled flow of inhalation-air
CN105079928B (en) * 2014-04-03 2019-09-06 全健康网络有限公司 For providing the device of controlled sucking air stream
CN109444218A (en) * 2018-12-17 2019-03-08 西南科技大学 Improved ambient condition simulator and application method in a kind of reaction of oxidation kinetics
CN109444218B (en) * 2018-12-17 2024-02-20 西南科技大学 Improved environment state simulation device in oxidation kinetics reaction and use method

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