GB914343A - Electronic time cycled respirator - Google Patents

Electronic time cycled respirator

Info

Publication number
GB914343A
GB914343A GB4296/59A GB429659A GB914343A GB 914343 A GB914343 A GB 914343A GB 4296/59 A GB4296/59 A GB 4296/59A GB 429659 A GB429659 A GB 429659A GB 914343 A GB914343 A GB 914343A
Authority
GB
United Kingdom
Prior art keywords
inspiratory
expiratory
valve
bellows
timing circuit
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
GB4296/59A
Inventor
Kenneth Roy Perry
Michael Charles Willia Andrews
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.)
Pye Electronic Products Ltd
Original Assignee
Pye Ltd
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 Pye Ltd filed Critical Pye Ltd
Priority to GB4296/59A priority Critical patent/GB914343A/en
Priority to US5893A priority patent/US3101708A/en
Publication of GB914343A publication Critical patent/GB914343A/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
    • A61M16/0003—Accessories therefor, e.g. sensors, vibrators, negative pressure
    • A61M16/0009—Accessories therefor, e.g. sensors, vibrators, negative pressure with sub-atmospheric pressure, e.g. during expiration
    • 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
    • A61M16/021—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes operated by electrical 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
    • A61M16/0057—Pumps therefor
    • A61M16/0075—Bellows-type

Abstract

914,343. Respiratory apparatus. PYE Ltd. Feb. 4, 1960 [Feb. 6, 1959], No. 4296/59. Class 81 (2). A respirator in which the duration of expiration and inspiration is controlled by an electronic timing circuit includes an over-riding trigger device controlling the timing circuit to cause the respirator to change its respiratory phase if the patient makes an attempt at voluntary respiration. Respiratory gas is supplied continuously through a change-over valve 2 to an inspiratory bellows 1 and thence through an inspiratory control valve 4 to a face mask 5. Expired air is drawn into an expiratory bellows 7 by way of an expiratory control valve 6. The inspiratory and expiratory valves each comprise a poppet valve 4a, 6a and a non-return valve 4b, 6b. The poppet valves are both connected to the armature 9 of a solenoid 10 which is energized by an electronic timing circuit, e.g. a multivibrator, to open the expiratory valve during the expiratory part of the respiratory cycle. The solenoid is de-energized under the control of the timing circuit or when the timing circuit is out of use to permit the opening of the inspiratory valve by a spring 12. The expiratory and inspiratory bellows are connected between a fixed plate 29 and a plate 13 which is pivotally connected by arms 14, 15 to the chassis of the apparatus. Inflation of the inspiratory bellows causes the expiratory bellows to expand, thus creating a negative pressure which induces exhalation. The negative pressure is controlled by a variable orifice 27. In the event that the patient inspires during the expiratory part of the respiratory cycle, an adjustable trigger mechanism comprising a pressure-sensitive diaphragm 24 and a microswitch 25 operates to switch the respiratory cycle to the inspiratory part. If desired, the change-over valve may be operated so that the gas supply by-passes the inspiratory bellows and the inspiratory valve and a manual control bag 22 may be inserted between the mask and the expiratory valve. Specification 914,342 is referred to.
GB4296/59A 1959-02-06 1959-02-06 Electronic time cycled respirator Expired GB914343A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB4296/59A GB914343A (en) 1959-02-06 1959-02-06 Electronic time cycled respirator
US5893A US3101708A (en) 1959-02-06 1960-02-01 Electronic time cycled respirator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4296/59A GB914343A (en) 1959-02-06 1959-02-06 Electronic time cycled respirator

Publications (1)

Publication Number Publication Date
GB914343A true GB914343A (en) 1963-01-02

Family

ID=9774487

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4296/59A Expired GB914343A (en) 1959-02-06 1959-02-06 Electronic time cycled respirator

Country Status (2)

Country Link
US (1) US3101708A (en)
GB (1) GB914343A (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3266488A (en) * 1963-06-10 1966-08-16 Air Shields Lung ventilating equipment
US3292617A (en) * 1963-10-21 1966-12-20 Mine Safety Appliances Co Closed circuit breathing apparatus
US4011866A (en) * 1965-02-05 1977-03-15 Automatic Breathing Apparatus Co., Inc. Electronically controlled pulmonary ventilator
US3503393A (en) * 1966-05-19 1970-03-31 Blease Anaesthetic Equip Ltd Patient controlled respiratory apparatus
US3610236A (en) * 1966-11-22 1971-10-05 Globe Safety Products Inc Resuscitator device
DE1766038A1 (en) * 1968-03-26 1971-05-27 Paul Bischler Adjustable ventilation cannula
GB1293479A (en) * 1971-08-19 1972-10-18 Philips Nv Medical ventilator including a fail-safe system
US3871371A (en) * 1972-12-11 1975-03-18 Puritan Bennett Corp Respiration supply and control
FR2320082A1 (en) * 1975-08-07 1977-03-04 Assistance Tech Med RESPIRATOR FOR THE TREATMENT OF RESPIRATORY INSUFFICIENT, USED MORE PARTICULARLY AT HOME
FR2344278A1 (en) * 1976-03-19 1977-10-14 Air Liquide RESPIRATOR
FR2361126A1 (en) * 1976-08-11 1978-03-10 Spirotechnique Indle Et Cale Respirator gas supply system - delivers medium at adjustable rate and frequency between two diaphragms to actuate inlet valve
FR2472937A1 (en) * 1980-01-04 1981-07-10 Synthelabo ARTIFICIAL RESPIRATOR CONTROL DEVICE
FR2601598B1 (en) * 1986-07-21 1988-11-10 Spirotech Ind Commerc DIVING BREATHING APPARATUS
DE3823381A1 (en) * 1987-11-03 1989-05-24 Draegerwerk Ag CIRCUIT BREATH PROTECTOR
CN102380147B (en) * 2010-08-30 2014-09-17 陈晓曦 Medical oxygen pressure respiratory protection device
US9022746B2 (en) * 2011-09-09 2015-05-05 Allied Healthcare Products, Inc. Shuttling by-pass compressor apparatus
CN113713221B (en) * 2019-11-20 2023-02-03 王晓霞 Breathe internal medicine atomizing machine

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2288436A (en) * 1941-10-03 1942-06-30 Alvin M Cahan Resuscitating device
US2391877A (en) * 1943-11-29 1946-01-01 Alvin M Cahan Respiration apparatus
US2593774A (en) * 1948-03-18 1952-04-22 Loredo Miguel Angel Apparatus for no-effort inhalation anesthesia
US2972345A (en) * 1955-10-26 1961-02-21 Spigel Robert Respirator
US2907322A (en) * 1956-11-26 1959-10-06 Air Reduction Apparatus for producing artificial respiration during anesthesia

Also Published As

Publication number Publication date
US3101708A (en) 1963-08-27

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