SE8304597D0 - ANESTHETIC UNIT - Google Patents

ANESTHETIC UNIT

Info

Publication number
SE8304597D0
SE8304597D0 SE8304597A SE8304597A SE8304597D0 SE 8304597 D0 SE8304597 D0 SE 8304597D0 SE 8304597 A SE8304597 A SE 8304597A SE 8304597 A SE8304597 A SE 8304597A SE 8304597 D0 SE8304597 D0 SE 8304597D0
Authority
SE
Sweden
Prior art keywords
gas
valve
flow
constriction
anaesthetic
Prior art date
Application number
SE8304597A
Other languages
Swedish (sv)
Other versions
SE8304597L (en
SE437936B (en
Inventor
Ola Stenqvist
Original Assignee
Ola Stenqvist
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 Ola Stenqvist filed Critical Ola Stenqvist
Priority to SE8304597A priority Critical patent/SE437936B/en
Publication of SE8304597D0 publication Critical patent/SE8304597D0/en
Priority to EP19840903104 priority patent/EP0181335A1/en
Priority to PCT/SE1984/000281 priority patent/WO1985000983A1/en
Publication of SE8304597L publication Critical patent/SE8304597L/en
Publication of SE437936B publication Critical patent/SE437936B/en
Priority to NO851635A priority patent/NO159344C/en
Priority to DK185285A priority patent/DK160461C/en

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
    • A61M16/104—Preparation of respiratory gases or vapours specially adapted for anaesthetics

Abstract

Valve means for an anaesthetic system which comprises an inhalation means, such as an anaesthetic mask, a gas supply system for the supply of a mixture of gases containing oxygen and an anaesthetic gas, at least one valve (64, 65) for regulating the gas flow in the system and an outlet (67) or the like for the controlled discharge of used gas. The valve means incorporates a sensing means (53, 56) so arranged as to sense the gas speed and the direction of the gas flow in a gas duct inside the system, and a power means (61) so arranged as to cause the valve to open when the speed of the gas in a pre-determined direction exceeds a certain value. The sensing means incorporates a duct (53) with a constriction (56) and on either side of the construction inlets to two lateral ducts (57, 58). The power means (61) is so arranged as to cause the valve (64, 65) to move to its different positions by utilizing the higher pressure which arises because of the direction of flow of the gas and its rate of flow on the arrival side of the constriction in relation to the lower pressure downstream of the constriction. It takes the form of two chambers (59, 60) which are connected to the lateral ducts (57, 58) and which are separated by a movable organ such as a membrane (63) to which the valve is connected. The difference in pressure which occurs in the sensing means as the gas is flowing thus provides control of the valve.
SE8304597A 1983-08-25 1983-08-25 VALVE DEVICE, Separate from an Anesthetic Unit SE437936B (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
SE8304597A SE437936B (en) 1983-08-25 1983-08-25 VALVE DEVICE, Separate from an Anesthetic Unit
EP19840903104 EP0181335A1 (en) 1983-08-25 1984-08-22 Valve means specifically intended for anaesthetic systems
PCT/SE1984/000281 WO1985000983A1 (en) 1983-08-25 1984-08-22 Valve means specifically intended for anaesthetic systems
NO851635A NO159344C (en) 1983-08-25 1985-04-24 VALVE DEVICE, SPECIFICALLY AT THE ANCOSE.
DK185285A DK160461C (en) 1983-08-25 1985-04-25 VALVE EQUIPMENT, ISSUE ON AN ANCESTOR

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8304597A SE437936B (en) 1983-08-25 1983-08-25 VALVE DEVICE, Separate from an Anesthetic Unit

Publications (3)

Publication Number Publication Date
SE8304597D0 true SE8304597D0 (en) 1983-08-25
SE8304597L SE8304597L (en) 1985-02-26
SE437936B SE437936B (en) 1985-03-25

Family

ID=20352294

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8304597A SE437936B (en) 1983-08-25 1983-08-25 VALVE DEVICE, Separate from an Anesthetic Unit

Country Status (4)

Country Link
EP (1) EP0181335A1 (en)
DK (1) DK160461C (en)
SE (1) SE437936B (en)
WO (1) WO1985000983A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5315989A (en) * 1991-12-09 1994-05-31 Boc Health Care, Inc. Medical ventilator

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3598116A (en) * 1969-06-17 1971-08-10 United Aircraft Corp Respirator with fluid amplifiers
SE391455B (en) * 1973-04-27 1977-02-21 S O Elfstrand BREATHING DEVICE
NL8007074A (en) * 1980-12-29 1982-07-16 Honeywell Bv RESPIRATOR.

Also Published As

Publication number Publication date
DK160461C (en) 1991-09-16
SE8304597L (en) 1985-02-26
DK185285D0 (en) 1985-04-25
DK160461B (en) 1991-03-18
WO1985000983A1 (en) 1985-03-14
SE437936B (en) 1985-03-25
EP0181335A1 (en) 1986-05-21
DK185285A (en) 1985-04-25

Similar Documents

Publication Publication Date Title
ES2075400T3 (en) REVIVAL AND VENTILATION DEVICE.
ES2037326T3 (en) APPARATUS TO SUPPORT THE SPONTANEOUS BREATH OF A PATIENT.
SE9303662D0 (en) Valve device and respirator including such valve device
GB1062772A (en) A respiratory apparatus
SE8008283L (en) BREATHING APPARATUS
KR920701036A (en) Gas mixing device
US3695263A (en) Closed circuit medical respirators
GB1357635A (en) Pneumatic pressure type respirator
ES470775A1 (en) Respirator for emergency air supply to a patient
GB1001854A (en) A vaporizing device for an anaesthetic apparatus
SE8304597D0 (en) ANESTHETIC UNIT
ATE39564T1 (en) FLOW CONTROL DEVICE.
JPH0562373B2 (en)
SE8105776L (en) RESPIRATOR DEVICE
US3435822A (en) Breathing apparatus with fluid diode valve
GB1104640A (en) Breathing apparatus for supplying a pair of gases in adjustable proportion
SE8101149L (en) GAS MIXING DEVICE FOR ANCOSET APPLIANCES WITH SAFETY DEVICE
GB1478509A (en) Positive pressure resuscitator or inhaler
JPS5482525A (en) Exhaust gas recirculation system
GB1096030A (en) Improvements in or relating to respiratory apparatus
FR2455767A1 (en) Control system for pneumatic plant under variable pressure - has microprocessor-controlled electromagnetically operated vanes to regulate flow of gas to each distribution point
GB931968A (en) Improvements in or relating to control devices for controlling the flow of inhalation gas in respiratory apparatus
SU752057A1 (en) Pneumatic flow-rate intensifier
SU412899A1 (en)
DE3778021D1 (en) ALARM SYSTEM WITH PNEUMATIC CONTROL FOR A PNEUMATIC VENTILATOR.

Legal Events

Date Code Title Description
NUG Patent has lapsed

Ref document number: 8304597-1

Effective date: 19940310

Format of ref document f/p: F