GB1498211A - Positive pressure breathing circuit - Google Patents

Positive pressure breathing circuit

Info

Publication number
GB1498211A
GB1498211A GB4896/75A GB489675A GB1498211A GB 1498211 A GB1498211 A GB 1498211A GB 4896/75 A GB4896/75 A GB 4896/75A GB 489675 A GB489675 A GB 489675A GB 1498211 A GB1498211 A GB 1498211A
Authority
GB
United Kingdom
Prior art keywords
tube
gas
port
ventilator
tubular member
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
GB4896/75A
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 GB1498211A publication Critical patent/GB1498211A/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
    • A61M16/14—Preparation of respiratory gases or vapours by mixing different fluids, one of them being in a liquid phase
    • A61M16/16—Devices to humidify the respiration air
    • A61M16/162—Water-reservoir filling system, e.g. automatic
    • 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
    • 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
    • A61M16/16—Devices to humidify the respiration air
    • 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
    • A61M16/16—Devices to humidify the respiration air
    • A61M16/162—Water-reservoir filling system, e.g. automatic
    • A61M16/164—Water-reservoir filling system, e.g. automatic including a liquid inlet valve system
    • A61M16/165—Water-reservoir filling system, e.g. automatic including a liquid inlet valve system with a float actuator
    • A61M16/167—Water-reservoir filling system, e.g. automatic including a liquid inlet valve system with a float actuator acting vertically on the valve
    • 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
    • A61M11/00—Sprayers or atomisers specially adapted for therapeutic purposes
    • A61M11/06—Sprayers or atomisers specially adapted for therapeutic purposes of the injector 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)
  • Devices For Medical Bathing And Washing (AREA)

Abstract

1498211 Respiratory apparatus B R PALUCH 5 Feb 1975 [18 March 1974] 4896/75 Heading A5T [Also in Division B2] The exhalation tube 12 of a breathing circuit 10 is concentrically arranged about the inhalation tube 14 so that the temperature of gas flowing to the patient through tube 14 is stabilised without any extraneous source of heat, there being also an inflatable means 38 positioned between the tubes 12, 14 and in fluid communication with a source of pressurised fluid so that the means 38 is inflated during inspiration to block the expiratory tube and is deflated during expiration to permit passage of exhaled gas through the tube 12. The circuit 10 is connected to a positive pressure ventilator, the exhalation tube 12 including a tubular member 21 and the inhalation tube 14 including a tubular member 22. The means 38 comprises a cuff which is secured to member 22 and communicates with an inflation duct 36 in member 22, the duct being connected to a gas supply port of the ventilator so that the cuff is inflated and deflated as the ventilator cycles. A oneway valve 52 is provided within member 22 and comprises a ring 53 supporting a rib member 54 carrying a membrane 55 which seats against the ring 53 during exhalation and is unseated therefrom during inspiration. A membrane 50 located about member 22 provides a one-way valve in tubular member 21, cooperating with a valve seat 34 defined by a groove formed on member 21. Apertures 44 adjacent a connection 41 for a patient's face mask and downstream of valve 52 provide communication between the inhalation and exhalation tubes. A nebuliser (60) is detachably mounted on tubular member 21 with its outlet port 68 in register with a port 47 of tubular member 22. The nebuliser comprises a body (77) which floats on liquid, e.g. medicament, contained in the nebuliser, and has a channel 79 through which the liquid is aspirated by gas supplied through flexible hose 85 and atomising gas duct 90, 28 which is connected to a gas port of the ventilator so that atomising gas is supplied only during the inhalation phase of the ventilator. The aspirated liquid is atomised by striking a ball 83 positioned above channel 79. The ports 68, 47 are each controlled by shutters which are automatically moved as the nebuliser is mounted on the tubular member 21. The end of the circuit distal from the patient may be connected to a humidifier 117 containing a water chamber 121 into which extends a tube 128 supplying breathing gas from the ventilator. A port 118 of the humidifier is coupled to inhalation tube 14 and a port 123 receives exhaled gases from tube 12 whereby heat from the exhaled gases warms the water and hence the inspiratory gas. The humidifier may be formed with heat-exchanging fins or contain metallic wool. A drain port 105 may be provided in the exhalation tube for drainage of condensed fluids therefrom. The portion of the circuit upstream of members 21, 22 may comprise tubes having smooth or corrugated walls and the wall of the inspiratory tube may be provided with a helically wound wire to provide rigidity.
GB4896/75A 1974-03-18 1975-02-05 Positive pressure breathing circuit Expired GB1498211A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US451855A US3865106A (en) 1974-03-18 1974-03-18 Positive pressure breathing circuit

Publications (1)

Publication Number Publication Date
GB1498211A true GB1498211A (en) 1978-01-18

Family

ID=23793986

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4896/75A Expired GB1498211A (en) 1974-03-18 1975-02-05 Positive pressure breathing circuit

Country Status (3)

Country Link
US (1) US3865106A (en)
CA (1) CA1003299A (en)
GB (1) GB1498211A (en)

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US4007737A (en) * 1974-01-28 1977-02-15 Paluch Bernard R Anesthesia breathing system
US3967619A (en) * 1974-11-15 1976-07-06 Story Eddie W Apparatus and method for intermittent mandatory ventilation
US4013122A (en) * 1975-05-05 1977-03-22 Richard William Long Diver's gas heater
US3990442A (en) * 1975-06-06 1976-11-09 Patneau Robert A Respiratory treatment device
US4004585A (en) * 1975-11-18 1977-01-25 Boehringer John R Safety interface for anesthesia vacuum scavenging
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US4373521A (en) * 1981-08-24 1983-02-15 The United States Of America As Represented By The Secretary Of The Navy Heated breathing bag sheath
US4829998A (en) * 1988-02-25 1989-05-16 Jackson Richard R Delivering breathable gas
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ITBS20010091U1 (en) * 2001-11-12 2003-05-12 Flaem Nuova Spa DEVICE FOR THE WASHING OF NASAL CAVITIES AND THE COLLECTION OF RETURN LIQUIDS AND CATARRAL MATERIAL.
US7677467B2 (en) * 2002-01-07 2010-03-16 Novartis Pharma Ag Methods and devices for aerosolizing medicament
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US6834984B2 (en) * 2002-10-15 2004-12-28 Delaware Captial Formation, Inc. Curved reflective surface for redirecting light to bypass a light source coupled with a hot mirror
US6883936B2 (en) * 2002-10-15 2005-04-26 Delaware Capital Formation, Inc. Shutter apparatus, curing lamp housing incorporating same, and method of shutter replacement
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Also Published As

Publication number Publication date
CA1003299A (en) 1977-01-11
US3865106A (en) 1975-02-11

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee