GB1488317A - Ventilator - Google Patents

Ventilator

Info

Publication number
GB1488317A
GB1488317A GB36750/75A GB3675075A GB1488317A GB 1488317 A GB1488317 A GB 1488317A GB 36750/75 A GB36750/75 A GB 36750/75A GB 3675075 A GB3675075 A GB 3675075A GB 1488317 A GB1488317 A GB 1488317A
Authority
GB
United Kingdom
Prior art keywords
chamber
passage
outlet
nozzle
communicating
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
GB36750/75A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB1488317A publication Critical patent/GB1488317A/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
    • A61M16/0012—Accessories therefor, e.g. sensors, vibrators, negative pressure with sub-atmospheric pressure, e.g. during expiration by Venturi 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
    • A61M16/0051—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes with alarm devices
    • 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
    • A61M16/0081—Bag or bellow in a bottle
    • 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
    • A61M16/12—Preparation of respiratory gases or vapours by mixing different gases
    • 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

Landscapes

  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Pulmonology (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (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)
  • Percussion Or Vibration Massage (AREA)

Abstract

1488317 Ventilators D I CAMPBELL 5 Sept 1975 [4 Oct 1974] 36750/75 Heading A5T A ventilator comprises a pressure chamber 21 having an outlet 28, the outlet being adapted for communication with a patient's airway, a gas entrainment device 22 of the Venturi effect type, the entrainment device communicating with the interior of the chamber and comprising a passage 23 having an inlet 24 and an outlet 25, the outlet 25 communicating with the chamber, the inlet 24 communicating with atmosphere, a nozzle 26 in the passage for directing a jet of high pressure gas into the passage to induce gas flow from atmosphere into the chamber, and means for controlling an intermittent flow of high pressure gas to the nozzle, wherein the passage is sized to permit substantially unimpeded gas flow therethrough from the chamber to atmosphere during an expiratory phase of a patient. In the exhalation phase the high pressure gas flow is switched off electronically, pneumatically or fluidically and the patient exhales through chamber 21 and passage 23 to atmosphere. A bellows may be incorporated in the chamber dividing it into two parts, one including outlet 28, the other communicating with the passage. In this case the bellow's interior provides a reservoir the size of which is controlled by the pressure in the other part of the chamber which is in turn controlled by the jet of high pressure air. The outlet 28 may be connected to an external respiratory circuit to provide the patient with controlled or assisted breathing. A second nozzle next to the nozzle 26 may be used to provide a constant positive pressure in the chamber 21 upon which is superimposed the intermittent positive pressure due to nozzle 26, or a third nozzle fitted into the chamber wall opposed to outlet 25 of the passage may be used to create a negative pressure in the chamber during exhalation.
GB36750/75A 1974-10-04 1975-09-05 Ventilator Expired GB1488317A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AU916374 1974-10-04

Publications (1)

Publication Number Publication Date
GB1488317A true GB1488317A (en) 1977-10-12

Family

ID=3699893

Family Applications (1)

Application Number Title Priority Date Filing Date
GB36750/75A Expired GB1488317A (en) 1974-10-04 1975-09-05 Ventilator

Country Status (2)

Country Link
AU (1) AU8447475A (en)
GB (1) GB1488317A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2118442A (en) * 1982-04-15 1983-11-02 James Gordon Whitwam Improvements in or relating to respirators
FR2527080A1 (en) * 1982-05-21 1983-11-25 Medizin Labortechnik Veb K APPARATUS FOR ANESTHESIA AND FOR ARTIFICIAL BREATHING
US5664563A (en) * 1994-12-09 1997-09-09 Cardiopulmonary Corporation Pneumatic system

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110090122A (en) * 2018-01-29 2019-08-06 力康华耀生物科技（上海）有限公司 Infant incubator with air purity monitoring

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2118442A (en) * 1982-04-15 1983-11-02 James Gordon Whitwam Improvements in or relating to respirators
US4596247A (en) * 1982-04-15 1986-06-24 Whitwam James G Respirator
US4644947A (en) * 1982-04-15 1987-02-24 Whitwam James G Respirator
FR2527080A1 (en) * 1982-05-21 1983-11-25 Medizin Labortechnik Veb K APPARATUS FOR ANESTHESIA AND FOR ARTIFICIAL BREATHING
US5664563A (en) * 1994-12-09 1997-09-09 Cardiopulmonary Corporation Pneumatic system

Also Published As

Publication number Publication date
AU8447475A (en) 1977-03-10

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Legal Events

Date Code Title Description
PS Patent sealed
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PE20 Patent expired after termination of 20 years

Effective date: 19950904