WO1994002190A1 - Systeme et procede d'amenee ou d'evacuation controlees de l'air respire - Google Patents

Systeme et procede d'amenee ou d'evacuation controlees de l'air respire Download PDF

Info

Publication number
WO1994002190A1
WO1994002190A1 PCT/EP1993/001940 EP9301940W WO9402190A1 WO 1994002190 A1 WO1994002190 A1 WO 1994002190A1 EP 9301940 W EP9301940 W EP 9301940W WO 9402190 A1 WO9402190 A1 WO 9402190A1
Authority
WO
WIPO (PCT)
Prior art keywords
air
mask body
breathing
user
mouth
Prior art date
Application number
PCT/EP1993/001940
Other languages
German (de)
English (en)
Other versions
WO1994002190A9 (fr
Inventor
Johannes Geisen
Bernhard Geisen
Original Assignee
Johannes Geisen
Bernhard Geisen
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
Priority claimed from DE9209893U external-priority patent/DE9209893U1/de
Application filed by Johannes Geisen, Bernhard Geisen filed Critical Johannes Geisen
Priority to AU47012/93A priority Critical patent/AU4701293A/en
Publication of WO1994002190A1 publication Critical patent/WO1994002190A1/fr
Publication of WO1994002190A9 publication Critical patent/WO1994002190A9/fr

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
    • A61M16/105—Filters
    • A61M16/106—Filters in a path
    • A61M16/1065—Filters in a path in the expiratory path
    • 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
    • A61M16/0066—Blowers or centrifugal pumps
    • A61M16/0069—Blowers or centrifugal pumps the speed thereof being controlled by respiratory parameters, e.g. by inhalation
    • 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
    • A61M16/022—Control means therefor
    • 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
    • A61M16/06—Respiratory or anaesthetic masks
    • 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
    • A61M16/06—Respiratory or anaesthetic masks
    • A61M16/0683—Holding devices therefor
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B18/00—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
    • 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
    • A61M2016/003—Accessories therefor, e.g. sensors, vibrators, negative pressure with a flowmeter
    • A61M2016/0033—Accessories therefor, e.g. sensors, vibrators, negative pressure with a flowmeter electrical
    • A61M2016/0036—Accessories therefor, e.g. sensors, vibrators, negative pressure with a flowmeter electrical in the breathing tube and used in both inspiratory and expiratory phase

Definitions

  • the invention relates to a system for the controlled supply or removal of breathing air, with a mask body and a device for holding the mask body in front of the mouth and / or nose area of a user, and a method for the controlled supply or removal of breathing air.
  • a simple and inexpensive type of conventional protective masks which are used, for example, to keep bacteria and germs away in an operating room, but also in a similar manner as a dust mask, has a single-layer or multi-layer fleece, which is tied with ribbons in front of the nose and mouth area User is held.
  • Such a mask is mostly intended for single use. Their filtering effect is limited because the fleece is blocked by the moisture in the breath and contaminated air can thus enter or exit laterally over the edge of the fleece. Investigations have shown that the filter effect of such a breathing mask is exhausted after about 20 minutes by the contamination of the mask itself and by the moisture absorbed. Further disadvantages of such a respirator mask are its lack of comfort, the relatively high breathing resistance, a certain visual impairment, the possible fogging of glasses, uncomfortably moist and warm skin contact and the like. In some cases, allergic skin reactions to the nonwoven material can also occur. Finally, the relatively complex manufacture of such disposable asks, in particular for use in operating theaters, which moreover are difficult to recycle, bears no relation to their low level Lifespan.
  • breathing mask for protection against contaminated outside air
  • a mask body made of rubber or plastic which lies tightly against the mouth and nose of a wearer, and a filter system which mostly connects directly to the mask body and which filters filtered outside air into the interior of the mask lets in.
  • Such breathing masks are usually relatively heavy and often cause wearing conditions in the wearer due to the absolute absence of air and the strong breathing resistance of the filter system.
  • the invention is therefore based on the object of providing a system and a method for the controlled supply or removal of breathing air which can be used as a respirator mask which avoids the disadvantages described above and in particular optimal decontamination of the breathing air with a high level of wearing comfort without obstructing the breathing activity or the view.
  • the system should preferably have a low weight and should be individually adaptable to a user.
  • a system is to be provided which is easy to clean, reusable and reusable.
  • This object is achieved according to the invention by a system for the controlled supply or discharge of breathing air with the features of claim -1.
  • a method for the controlled supply and discharge of breathing air with the features of claims 33 and 34 is provided.
  • the system according to the invention can, for example, remove and filter breathing air laden with germs and bacteria if a completely sterile atmosphere is required in an operating room, a clean room or the like.
  • the system can also be used as a "smog" mask, as a respirator for allergy sufferers or asthmatics, etc. by supplying clean air in a controlled manner, it being possible, if necessary, to add substances suitable for inhalation, such as special substances, to this supplied air Medication.
  • the system according to the invention offers high wearing comfort, the mask body lying in front of the nose and / or mouth area of the user with only partial or no skin contact.
  • the design of the mask body, the breathing activity and the constant supply or suction of air form a pressure or suction barrier in the edge area of the mask body, which contaminates the uncontrolled entry and exit Air prevents, but does not or hardly affects the natural breathing activity of the wearer.
  • the respiratory rate of an average adult is 14 breaths per minute on average under normal conditions, with an air volume of 7 1 / min being breathed.
  • the following comparison values were determined:
  • the respiratory volume of an operating surgeon is to be set at 12 1 / min, short-term peak values of up to 80 1 / min (cough) were determined. Based on the duration of one hour, an operating room worker produces between 0.5 - 2.5 m 3 / h of bacterially contaminated breathing air, which has to be filtered.
  • the procedure was used to examine conventional masks and to make the course of respiratory flows visible the Schlieren interferometry used.
  • density differences in a fluid e.g. air or water
  • the flow pattern of the experimental air can be optically recorded in this density measurement method. It can be assumed that the inspiratory air has a corresponding flow pattern.
  • FIG. 1 shows the profile recording of a test person.
  • the direction of the turbulent air currents demonstrates the need for mouth protection, for example during an operation.
  • FIG. 1 also shows that the respiratory flow has a very specific flow pattern and that a device for the controlled supply of outside air or the removal of breathable air must channel the air flow in a suitable manner. This is achieved by the arrangement of the mask body according to the invention and the regulated supply of outside air or removal of breathing air.
  • FIG. 2 is a side view of a person wearing the breathing air supply or removal system of the present invention
  • FIG. 3 is a perspective view of the system of FIG. 2 with an air quantity control device
  • FIG. 4 is an exploded view of the air quantity control device of FIG. 3,
  • FIG. 6 shows a further embodiment of the mask body according to the invention
  • FIG. 7 shows a fourth embodiment of the mask body according to the invention
  • 8 shows a further modified embodiment of the mask body according to the invention
  • FIG. 9 shows a sixth embodiment of the mask body according to the invention,.
  • Fig. 10 is a schematic representation of a
  • 11a 11b are schematic representations of an air line with non-return flap valves.
  • FIG. 1 shows the flow pattern of the expiratory air of a test person.
  • an operating mask for supplying or discharging breathing air
  • a smog mask for a breathing mask for allergy sufferers or asthmatics
  • a protective mask for keeping clean rooms clean
  • metered medication of substances to be inhaled for a metered medication of substances to be inhaled
  • an occupational safety mask or a portable system for determining of the breath volume of a wearer
  • FIG. 1 shows a mask body 10 which is arranged in front of the mouth and nose area of a user.
  • a rigid air tube 13 opens out of the mask body and along the side of a user's head and is connected to a holding device.
  • the holding device comprises a length-adjustable upper headband 11 and a rear headband 12, each of which is placed around the head of a user and on both sides of the head, approximately the height of the temples connected by two adjusting and holding buttons 15 and pivotally mounted to one another are.
  • the air tube 13 is guided through the rotatable adjusting and holding button 15 and has on its outer circumference ribs 13a, by means of which an adjusted position of the air tube in the adjusting and holding button 15 can be locked.
  • the length of the upper head strap 11, which extends transversely over the head of a user, is also adjustable and lockable, so that with a suitable adjustment of the holding bracket and a stable holder with more point contact on the head of the user for the mask body 10 is formed, so that the mask body 10 lies at a fixed distance without skin contact in front of the mouth and nose area of the user. Additional head pads can be provided on the inside of the adjusting and holding buttons 15. That from the mouth area 10a of the mask body.
  • distal end of the air tube 13 is connected via a plug-in connection 17 to an air hose 14 for supplying or discharging breathing air.
  • Fig. 3 shows a perspective view of the system of Fig. 2, wherein the air hose 14 is connected to an air flow control device 16.
  • the system shown in Fig. 3 is used for controlled suction of expiratory air and can be used for example in an operating room or a clean room.
  • the air flow is characterized by arrows, the white arrows A corresponding to the fresh air flowing into the interior of the mask body 10 via the mask edge, and black arrows B corresponding to the contaminated and expired air to be removed.
  • the mask body 10 is shaped in such a way that it largely completely absorbs the air flow B emerging from the mouth and nose.
  • the air quantity control device 16 which will be described in more detail below, sucks the exhalation air stream continuously, the suction effect in the air line 13, 14 and in the interior of the mask, in particular in the mouth area 10a, resulting in a continuous fresh air flow from the surroundings via the edge of the mask into the interior of the mask, which supplies the wearer with fresh air and at the same time forms a suction barrier which the escape of, for example, bacterially contaminated expiration air via the mask edge to the outside. This eliminates the need for full-surface application of the mask body on the skin, and yet the environment is effectively protected against contaminated breathing air.
  • a collecting channel for saliva or condensed water which may escape with the expiration air can be provided at the lower edge of the mask body 10 in order to pass this on to a collecting container (not shown), if necessary. There the liquid can be collected and separated. In addition, the constant suction or supply air flow promotes drying of the mask area.
  • the discharged expiration air B passes through the air quantity control device 15, in which a filter for cleaning or decontamination of the air is provided, and is released into the environment as cleaned air C.
  • the described system can also work in the opposite direction for the controlled supply of breathing air.
  • FIG. 4 shows the air quantity control device 16 with a controllable air pump 17 and an air filter 18 in an exploded view.
  • the air volume control device 16 comprises a housing 19 with two chambers for the air pump 17 and the air filter 18 and a housing cover 20.
  • a holding clip 21 is provided on the underside of the housing 19 in order to hold the air volume control device 16, for example on a piece of clothing, a belt etc. to attach.
  • the air quantity control device also has a connection for a power supply 22, it being possible for a mains connection to be provided instead of or in addition to the batteries 22 shown.
  • an LCD display 23 for various operating states, a power button 24 and a control LED 25 are provided.
  • Control electronics which can also be accommodated in the air quantity control device 16, are not shown in FIG. 4.
  • the air pump 17 is a controllable fan with an output of up to 9 m 3 / h.
  • a replaceable filter cartridge made of a glass fiber fabric is provided as the air filter, the degree of separation of which is 99.9%. has a service life of at least 325 hours, whereby it can absorb 100% humidity.
  • This filter material is particularly advantageous because it can be disinfected and reused.
  • an air filter 18 made of a non-woven material can also be provided.
  • On the housing cover 20 there is a connection 20a for the air line 14 and openings 20b for entering or exiting air.
  • the housing 19 and the housing cover 20 are preferably made of Valox or glass fiber reinforced Valox (polybutylene terephthalate), the printed circuit board of the control electronics from Ultem.
  • 5 and 6 show two alternative configurations of the mask body 10 for a system for the controlled removal of breathing air.
  • the mask body 10 of FIG. 5 has lateral air guide channels 26, in which the edge of the mask body is at a greater distance from the face surface of a user, so that air preferably flows through these air guide channels 26.
  • a body 27 is provided with the mask body 10, by means of which the mask body rests on the bridge of the nose of a user, this web on the one hand facilitating the correct positioning of the mask body 10 in front of the mouth and nose area and on the other hand to protect the eye area against those possibly flowing out of the inside of the mask Drafts serve. 5 therefore has on its periphery areas with direct skin contact, areas with a small, defined distance from the skin surface and areas with a greater distance from the skin surface.
  • FIG. 6 shows a greatly reduced mask body 10 which is ergonomically adapted to the shape of the face of a particular user.
  • the mask body covers the mouth and nose of the wearer, the distance between the edge of the mask and the surface of the skin being relatively small; by defined Contact points 10b, 10c in the area of the nose and chin are ensured that the defined distance between the surface of the skin and the edge of the mask is maintained.
  • the mouth area 10a of the air tube 13 is located relatively close to the mouth and nose of the wearer, so that the expiratory air is safely extracted.
  • the suction barrier already explained arises at the edge of the mask body 10, which on the one hand draws fresh air from the outside and on the other hand prevents contaminated expiratory air from being released to the outside in an uncontrolled manner.
  • FIG. 7 to 9 show further embodiments of the mask body 10 of the system for supplying breathing air according to the invention.
  • the mask body 10 of FIG. 7 has at its upper edge a web 27 with which it sits on the bridge of the nose of a user.
  • the mask body 10 itself corresponds approximately an enlarged replica of the nose and is open towards the bottom, the air tube 13 opening into the part of the mask body corresponding to the tip of the nose.
  • the lower edge of the mask body 10 is slightly bent inwards, so that the fresh air flowing in through the air pipe 13 is guided to the mouth and nostrils. This creates an air flow cone that essentially covers the entire nose and mouth area, from which breathing air is taken in, and keeps contaminated outside air out. Since the mask body 10 only physically covers the nose, the user of such a system can comfortably exhale through the mouth without greater breathing resistance.
  • FIG. 8 shows a system similar to that of FIG. 7, in which the mask body 10 is supported on the bridge of the nose of a wearer of the system via a web 17.
  • the mask body 10 corresponds here to a laterally open shield, which extends from the nose to approximately the chin and which directs the air escaping slightly below the mouth of a user in the mouth region 10a upwards to the mouth and nose.
  • a substantially closed air cushion cone of supplied air is formed above the mouth and nose area by the special air duct, so that no or only negligibly small amounts of contaminated outside air can get into the airways.
  • Natural breathing is not hampered by the relatively high breathing resistance of a closed or almost closed mask.
  • the expelled air in the systems of FIG. 7 or 8 can easily move downwards without impairing the function of the overall system.
  • a constantly supplied air flow through the air line 14, 13 ensures that an air cushion is always present, which is rebuilt immediately after exhaling and prevents the uncontrolled penetration of outside air into the airways.
  • the mask body 10 essentially consists only of an enlarged outflow opening 10a of the air tube 13, which is oriented towards the mouth and nose of a user.
  • a central flow body 28 can be provided in the mouth area 10a, which divides the supplied airflow , so that a kind of air jacket or clean air curtain is formed around the mouth and nose area, which effectively keeps outside air.
  • 11a and 11b show a particularly favorable embodiment of the air tube 13 in the vicinity of the Mouth area 10a of the mask body 10 for a system for removing breathable air.
  • one or more check valves 29 are inserted, which are articulated at the mouth of the air tube 13 and open inwards in the downstream direction.
  • the non-return flaps 29 are open (FIG. 11 b), so that air flows both from the mask body 10 through the mouth region 10 a and through openings 30 in the air tube 13 that are cleared from the non-return flaps 29 and into the air tube 13 and from the air quantity control device 16 can be suctioned off.
  • the air quantity control device 16 can operate essentially at constant power and still always discharge the entire amount of expired air, even if the exhaled air volume suddenly increases, for example by coughing or sneezing.
  • a sudden increase Taking up and requesting air volume is also conceivable.
  • a suitable design of the air line and / or the mask body for. B. by existing or emerging sacks and / or folds in the mask or mask exit area, a sudden increase in the exhaled air volume can be intercepted.
  • the maximum required suction or supply power of the air quantity control device can be kept at hand, only a part of the available suction or supply volume being actually used in normal operation, the remaining air volume being similar to that of Fig. 11 sucked or discharged "empty".
  • an actuator, a diaphragm or a flap valve system can be activated continuously by an electronic control and / or the changed air pressure itself, so that the previously "idling" air volume is activated by the mask body is supplied or suctioned off from this.
  • sensors for determining the respiratory volume can be provided on the basis of pressure differences, temperature differences or density differences and the like.
  • a mechanical one Determination of the breathing volume with a spirometer or an acoustic detection of changes in breathing activity can be used in the system according to the invention.
  • the corresponding sensor signals are forwarded to control electronics, which can both control the actuation of corresponding valve, diaphragm or flap systems and can change the output of the air quantity control device 16 depending on the air volume to be conveyed.
  • a flexible hose can also be led out of the mouth area of the mask body, in which case a correspondingly different holding device must be provided for the mask body.
  • the air quantity control device connected to the air line can preferably be fastened to the body of the user, for example on the back or on a belt, but it can also be arranged away from the user, in a stationary installation, in another room, etc.
  • the air volume control device may also be completely absent if the mask body is suitably shaped, the air line then having to be routed into a fresh air environment, and the form of the mask body has to ensure that the respiratory activity of the wearer of the invention alone is sufficient Systems forms a suction or pressure barrier at the edge of the mask, which prevents uncontrolled entry or exit of breathing air.
  • the air quantity control device regulates the suction or supply preferably as a function of the actual respiratory flow, interference events, such as coughing, sneezing or clearing of the throat, being compensable either by a change in the pump output or by the above-described valve systems and air reserve areas in the mask body and the air line. Furthermore, the control device provides control elements for the energy supply and the filter unit. Safety measures, such as doubling the critical components of the control device and warning devices which indicate failure or malfunctions of one or more components, can also be integrated in the control device. Furthermore, a heating device, a Drying device or a moistening device can be provided, which condition the breathing air to be supplied accordingly as required. In a corresponding embodiment of the system, medication or other substances that are suitable for inhalation can also be added to the breathing air to be supplied.
  • the fan of the air pump 17 of the air quantity control device 16 can either be in constant operation so that there is a permanent slight negative pressure or overpressure in the mask body 10 and a constant pressure or suction barrier is maintained at the edge of the mask body, or it can be dependent on that Breathing activity of the user.
  • a manual activation or control of the air quantity control device and the air reserve areas via a corresponding switch is also within the scope of the invention.
  • the mask body can either have a standardized shape, which is adapted to the face contour of an average adult, or it can be designed for a specific user in each case, in which case the molding, scanning or scanning of the head shape of the specific user forms a basis for the shaping of the Forms the body of the mask.
  • the mask body and the air tube are preferably made of sterilizable plastic, such as PEI (polyetherimide), and silicone or PVC can be used for the air hose and corresponding seals. All parts of the system according to the invention can be completely separated from one another, reused and / or recycled.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Engineering & Computer Science (AREA)
  • Animal Behavior & Ethology (AREA)
  • Emergency Medicine (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)

Abstract

Un système et un procédé permettent d'amener ou d'évacuer de manière contrôlée l'air respiré. Le système comprend un masque (10) et un dispositif (11, 12) de retenue du masque devant la région de la bouche et/ou du nez de l'utilisateur. Le bord du masque est éloigné, au moins dans des zones partielles, de la région de la bouche et/ou du nez de l'utilisateur. Un conduit d'air (14) qui sert à amener l'air extérieur ou à aspirer l'air respiré de manière régulée débouche dans le masque.
PCT/EP1993/001940 1992-07-23 1993-07-22 Systeme et procede d'amenee ou d'evacuation controlees de l'air respire WO1994002190A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU47012/93A AU4701293A (en) 1992-07-23 1993-07-22 Process and system of controllable breathing air supply or evacuation

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DEG9209893.2U 1992-07-23
DE9209893U DE9209893U1 (de) 1992-07-23 1992-07-23 System zur Dekontamination von Atem- oder Außenluft
DEP4307754.4 1993-03-11
DE4307754A DE4307754A1 (de) 1992-07-23 1993-03-11 System und Verfahren zum kontrollierten Zuführen oder Abführen von Atemluft

Publications (2)

Publication Number Publication Date
WO1994002190A1 true WO1994002190A1 (fr) 1994-02-03
WO1994002190A9 WO1994002190A9 (fr) 1994-03-03

Family

ID=25923865

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1993/001940 WO1994002190A1 (fr) 1992-07-23 1993-07-22 Systeme et procede d'amenee ou d'evacuation controlees de l'air respire

Country Status (3)

Country Link
AU (1) AU4701293A (fr)
DE (1) DE4307754A1 (fr)
WO (1) WO1994002190A1 (fr)

Cited By (45)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996006651A1 (fr) * 1994-09-01 1996-03-07 Mark Nepon Ventilation de gaz medicaux
WO1997011625A1 (fr) * 1995-09-28 1997-04-03 Nigel Graeme Chesney Armstrong Organe de soutien pourvu d'un dispositif d'alimentation en fluide
EP0806215A2 (fr) * 1996-04-17 1997-11-12 The BOC Group plc Dispositif pour la récupération d'agent anesthésique
US5694927A (en) * 1995-11-08 1997-12-09 Bohmfalk; George L. Disposable mask and suction catheter
WO1998024499A1 (fr) * 1996-12-02 1998-06-11 Resmed Limited Ensemble masque et harnais
AU731244B2 (en) * 1996-12-02 2001-03-29 Resmed Limited A mask and harness assembly
WO2001051113A1 (fr) * 2000-01-11 2001-07-19 Hudson Rci Ab Masque a oxygene
US6668830B1 (en) * 1999-11-19 2003-12-30 Mallinckrodt Inc. Low noise exhalation port for a respiratory mask
FR2861311A1 (fr) * 2003-10-23 2005-04-29 Equip Medicaux Et Moyens Avece Dispositif de maintien pour masque respiratoire.
FR2867390A1 (fr) 2004-03-09 2005-09-16 Philippe Perez Dispositif de respirateur compact a distribution d'air sous pression au niveau des voies respiratoires
FR2890568A1 (fr) 2005-09-09 2007-03-16 Philippe Perez Dispositif portatif de distribution de gaz
CN103384543A (zh) * 2011-02-11 2013-11-06 皇家飞利浦电子股份有限公司 具有提供集成的气体流动和输送的头盔的患者界面装置
US8833371B2 (en) 1997-02-10 2014-09-16 Resmed Limited Mask and vent assembly therefor
US8875710B2 (en) 2001-10-22 2014-11-04 Resmed R&D Germany Gmbh Application device for a breathing mask arrangement
US8960196B2 (en) 2007-01-30 2015-02-24 Resmed Limited Mask system with interchangeable headgear connectors
US8997739B2 (en) 1996-10-16 2015-04-07 Resmed Limited Vent valve apparatus
US9027556B2 (en) 2008-03-04 2015-05-12 Resmed Limited Mask system
US9072853B2 (en) 2001-09-07 2015-07-07 Resmed Limited Forehead pad for respiratory mask
US9144656B2 (en) 2001-10-22 2015-09-29 Resmed R&D Germany Gmbh Breathing mask arrangement as well as an application device and a forehead support device for same
WO2015168077A1 (fr) * 2014-04-28 2015-11-05 Scott Technologies, Inc. Respirateur facial filtrant ayant un emplacement de filtre facial optimisé
US9375545B2 (en) 2004-06-16 2016-06-28 Resmed Limited Respiratory mask assembly
US9381316B2 (en) 2005-10-25 2016-07-05 Resmed Limited Interchangeable mask assembly
US9421339B2 (en) 1996-07-26 2016-08-23 Resmed Limited Patient interface
USD782028S1 (en) 1998-01-16 2017-03-21 Resmed Limited Pad for forehead support
US9662467B2 (en) 2000-10-19 2017-05-30 Resmed R&D Germany Gmbh Breathing mask for feeding a breathing gas to a mask user and discharge device for discharging breathing gas
US9802021B2 (en) 2002-12-06 2017-10-31 Fisher & Paykel Healthcare Limited Mouthpiece
US9895505B2 (en) 2004-04-09 2018-02-20 Resmed Limited Nasal assembly
US9895503B2 (en) 2003-05-02 2018-02-20 Resmed Limited Mask system
USD823455S1 (en) 2017-02-23 2018-07-17 Fisher & Paykel Healthcare Limited Cushion assembly for breathing mask assembly
USD823454S1 (en) 2017-02-23 2018-07-17 Fisher & Paykel Healthcare Limited Cushion assembly for breathing mask assembly
USD824020S1 (en) 2017-02-23 2018-07-24 Fisher & Paykel Healthcare Limited Cushion assembly for breathing mask assembly
US10137270B2 (en) 2005-10-14 2018-11-27 Resmed Limited Cushion to frame assembly mechanism
US10369315B2 (en) 2003-04-10 2019-08-06 ResMed Pty Ltd Respiratory mask with molded frame and cushion
US10518054B2 (en) 2014-08-25 2019-12-31 Fisher & Paykel Healthcare Limited Respiratory mask and related portions, components or sub-assemblies
US10603456B2 (en) 2011-04-15 2020-03-31 Fisher & Paykel Healthcare Limited Interface comprising a nasal sealing portion
US10828441B2 (en) 2011-04-15 2020-11-10 Fisher & Paykel Healthcare Limited Interface comprising a rolling nasal bridge portion
US10946155B2 (en) 2012-09-04 2021-03-16 Fisher & Paykel Healthcare Limited Valsalva mask
DE102020108709A1 (de) 2020-03-30 2021-09-30 Laura Hepp Absaugvorrichtung zum Absaugen von Flüssigkeit aus einem Mundraum eines Patienten sowie Absaugsystem
EP3900796A1 (fr) * 2020-04-20 2021-10-27 Rhodius GmbH Masque de protection
DE102020122882A1 (de) 2020-09-01 2022-03-03 Sycotec Gmbh & Co. Kg Vorrichtung zum Abführen von Aerosolen
US20220111233A1 (en) * 2020-10-14 2022-04-14 Invent-it BV Mask with Composite Air Duct
US11331447B2 (en) 2008-03-04 2022-05-17 ResMed Pty Ltd Mask system with snap-fit shroud
US11419999B2 (en) 2013-08-05 2022-08-23 Fisher & Paykel Healthcare Limited Seal for a patient interface, interface assemblies and aspects thereof
US11452833B2 (en) 2016-10-05 2022-09-27 Fisher & Paykel Healthcare Limited. Patient interfaces
US11701486B2 (en) 2014-06-17 2023-07-18 Fisher & Paykel Healthcare Limited Patient interfaces

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5697363A (en) * 1996-04-12 1997-12-16 Albert Einstein Healthcare Network Inhalation and monitoring mask with headset
AUPQ104099A0 (en) 1999-06-18 1999-07-08 Resmed Limited Forehead support for facial mask
US6584976B2 (en) * 1998-07-24 2003-07-01 3M Innovative Properties Company Face mask that has a filtered exhalation valve
DE19944242A1 (de) * 1999-09-15 2001-03-22 Dentallabor Negurescu Gmbh Atemmaske und Verfahren zu deren Herstellung
DE10004682B4 (de) * 2000-02-03 2005-12-15 Dieter Riemer Atemheilmaske
AU2001256033B2 (en) * 2000-05-17 2005-03-17 Southmedic Incorporated Patient oxygen delivery system
US6450166B1 (en) * 2000-05-17 2002-09-17 Southmedic Incorporated Patient oxygen delivery system
US6371112B1 (en) * 2000-05-22 2002-04-16 Noam Bibi Device, system and method for preventing collapse of the upper airway
FR2812818A1 (fr) * 2000-08-10 2002-02-15 Robert Schegerin Ensemble masque-casque ultra leger et a faible centrage avant pour pilote d'avions modernes
US6595207B1 (en) * 2000-09-11 2003-07-22 Southmedic Incorporated Oxygen diffuser for patient oxygen delivery system
US6460539B1 (en) 2000-09-21 2002-10-08 3M Innovative Properties Company Respirator that includes an integral filter element, an exhalation valve, and impactor element
US6619288B2 (en) * 2000-11-15 2003-09-16 Deka Products Limited Partnership Breathing mask with incomplete headband
US6837238B2 (en) * 2001-10-12 2005-01-04 Southmedic Incorporated Lightweight oxygen delivery device for patients
DE10201682A1 (de) 2002-01-17 2003-07-31 Map Medizin Technologie Gmbh Atemmaskenanordnung
US7282032B2 (en) * 2003-06-03 2007-10-16 Miller Thomas P Portable respiratory diagnostic device
US8042540B2 (en) 2004-10-15 2011-10-25 Southmedic Incorporated Patient oxygen delivery mask
DE202008007011U1 (de) 2008-05-23 2008-10-02 Neubauer, Norbert Vorrichtung zur Abgabe von Wirkstoffen an die Atemluft
WO2017037638A1 (fr) 2015-09-04 2017-03-09 Fisher & Paykel Healthcare Limited Interfaces patient
USD884153S1 (en) 2018-04-04 2020-05-12 Fisher & Paykel Healthcare Limited Frame for a mask assembly
DE102020006288A1 (de) 2020-10-13 2022-04-14 Ulrich Frank Gesellschaft mit beschränkter Haftung Belüftungsvorrichtung
DE102021001728B4 (de) 2021-04-02 2022-12-22 Johann-Marius Milosiu UV-Virenschutz mit steriler Luftzufuhr und großen Filtern

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2245658A (en) * 1937-10-15 1941-06-17 Clarence N Erickson Inhaling device
US2248477A (en) * 1940-02-27 1941-07-08 Charles F Lombard Method and apparatus for administering oxygen
US3067741A (en) * 1959-08-18 1962-12-11 Oxygenaire London Ltd Face masks for use in the administration of oxygen or other gases
DE2806665A1 (de) * 1978-02-16 1979-08-30 Hudson Oxygen Therapy Sales Co Maske fuer die heilbehandlung eines patienten
EP0130707A2 (fr) * 1983-06-07 1985-01-09 Racal Safety Limited Appareil respiratoire
US4620537A (en) * 1985-03-04 1986-11-04 Brown Thomas M Cold weather face mask
US4905687A (en) * 1987-10-05 1990-03-06 Kemira Oy Method and apparatus for regulating air supplied to a gas mask
US5005571A (en) * 1988-11-25 1991-04-09 Dietz Henry G Mouth nose mask for use with an inhalation therapy and/or breathing monitoring apparatus
US5009225A (en) * 1989-11-30 1991-04-23 Boehringer Mannheim Corporation Personal ventilating system
WO1992000120A1 (fr) * 1990-06-26 1992-01-09 Cam Lock (Uk) Ltd. Equipement respiratoire ameliore pour equipage d'avion
US5104430A (en) * 1991-06-11 1992-04-14 Her Mou Lin Mask with an air filtering device
DE4106975A1 (de) * 1990-06-06 1992-09-10 Juergen Hoefer Gasapplikationshelm mit lautsprechern

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2245658A (en) * 1937-10-15 1941-06-17 Clarence N Erickson Inhaling device
US2248477A (en) * 1940-02-27 1941-07-08 Charles F Lombard Method and apparatus for administering oxygen
US3067741A (en) * 1959-08-18 1962-12-11 Oxygenaire London Ltd Face masks for use in the administration of oxygen or other gases
DE2806665A1 (de) * 1978-02-16 1979-08-30 Hudson Oxygen Therapy Sales Co Maske fuer die heilbehandlung eines patienten
EP0130707A2 (fr) * 1983-06-07 1985-01-09 Racal Safety Limited Appareil respiratoire
US4620537A (en) * 1985-03-04 1986-11-04 Brown Thomas M Cold weather face mask
US4905687A (en) * 1987-10-05 1990-03-06 Kemira Oy Method and apparatus for regulating air supplied to a gas mask
US5005571A (en) * 1988-11-25 1991-04-09 Dietz Henry G Mouth nose mask for use with an inhalation therapy and/or breathing monitoring apparatus
US5009225A (en) * 1989-11-30 1991-04-23 Boehringer Mannheim Corporation Personal ventilating system
DE4106975A1 (de) * 1990-06-06 1992-09-10 Juergen Hoefer Gasapplikationshelm mit lautsprechern
WO1992000120A1 (fr) * 1990-06-26 1992-01-09 Cam Lock (Uk) Ltd. Equipement respiratoire ameliore pour equipage d'avion
US5104430A (en) * 1991-06-11 1992-04-14 Her Mou Lin Mask with an air filtering device

Cited By (105)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996006651A1 (fr) * 1994-09-01 1996-03-07 Mark Nepon Ventilation de gaz medicaux
WO1997011625A1 (fr) * 1995-09-28 1997-04-03 Nigel Graeme Chesney Armstrong Organe de soutien pourvu d'un dispositif d'alimentation en fluide
US5694927A (en) * 1995-11-08 1997-12-09 Bohmfalk; George L. Disposable mask and suction catheter
EP0806215A3 (fr) * 1996-04-17 1998-07-01 The BOC Group plc Dispositif pour la récupération d'agent anesthésique
EP0806215A2 (fr) * 1996-04-17 1997-11-12 The BOC Group plc Dispositif pour la récupération d'agent anesthésique
US9421339B2 (en) 1996-07-26 2016-08-23 Resmed Limited Patient interface
US8997739B2 (en) 1996-10-16 2015-04-07 Resmed Limited Vent valve apparatus
US9770571B2 (en) 1996-10-16 2017-09-26 Resmed Limited Vent valve assembly
WO1998024499A1 (fr) * 1996-12-02 1998-06-11 Resmed Limited Ensemble masque et harnais
AU731244B2 (en) * 1996-12-02 2001-03-29 Resmed Limited A mask and harness assembly
DE19782144B4 (de) * 1996-12-02 2007-07-05 Resmed Ltd., North Ryde Masken- und Gurtgarnitur
US8833371B2 (en) 1997-02-10 2014-09-16 Resmed Limited Mask and vent assembly therefor
USD807497S1 (en) 1998-01-16 2018-01-09 Resmed Limited Pad for forehead support
USD782028S1 (en) 1998-01-16 2017-03-21 Resmed Limited Pad for forehead support
US6668830B1 (en) * 1999-11-19 2003-12-30 Mallinckrodt Inc. Low noise exhalation port for a respiratory mask
WO2001051113A1 (fr) * 2000-01-11 2001-07-19 Hudson Rci Ab Masque a oxygene
US10596342B2 (en) 2000-10-19 2020-03-24 Resmed R&D Germany Gmbh Breathing mask for feeding a breathing gas to a mask user and discharge device for discharging breathing gas
US9662467B2 (en) 2000-10-19 2017-05-30 Resmed R&D Germany Gmbh Breathing mask for feeding a breathing gas to a mask user and discharge device for discharging breathing gas
US10195385B2 (en) 2001-09-07 2019-02-05 Resmed Limited Forehead pad for respiratory mask
US9072853B2 (en) 2001-09-07 2015-07-07 Resmed Limited Forehead pad for respiratory mask
US10245403B2 (en) 2001-10-22 2019-04-02 RedMed R&D Germany GmbH Breathing mask arrangement as well as an application device and a forehead support device for same
US8875710B2 (en) 2001-10-22 2014-11-04 Resmed R&D Germany Gmbh Application device for a breathing mask arrangement
US9144656B2 (en) 2001-10-22 2015-09-29 Resmed R&D Germany Gmbh Breathing mask arrangement as well as an application device and a forehead support device for same
US9889266B2 (en) 2001-10-22 2018-02-13 Resmed R&D Germany Gmbh Breathing mask arrangement as well as an application device and a forehead support device for same
US10058671B2 (en) 2001-10-22 2018-08-28 Resmed R&D Germany Gmbh Application device for a breathing mask arrangement
US9757534B2 (en) 2001-10-22 2017-09-12 Resmed R&D Germany Gmbh Breathing mask arrangement as well as an application device and a forehead support device for same
US9802021B2 (en) 2002-12-06 2017-10-31 Fisher & Paykel Healthcare Limited Mouthpiece
US10500365B2 (en) 2002-12-06 2019-12-10 Fisher & Paykel Healthcare Limited Respiratory interface with elbow
US11471639B2 (en) 2002-12-06 2022-10-18 Fisher & Paykel Healthcare Limited Respiratory interface with elbow
US9956369B2 (en) 2002-12-06 2018-05-01 Fisher & Paykel Healthcare Limited Mouthpiece
US10369315B2 (en) 2003-04-10 2019-08-06 ResMed Pty Ltd Respiratory mask with molded frame and cushion
US9895503B2 (en) 2003-05-02 2018-02-20 Resmed Limited Mask system
FR2861311A1 (fr) * 2003-10-23 2005-04-29 Equip Medicaux Et Moyens Avece Dispositif de maintien pour masque respiratoire.
WO2005039680A1 (fr) * 2003-10-23 2005-05-06 Equipements Medicaux Et Moyens Avances-E.2.M.A (Sa) Dispositif de maintien pour masque respiratoire
FR2867390A1 (fr) 2004-03-09 2005-09-16 Philippe Perez Dispositif de respirateur compact a distribution d'air sous pression au niveau des voies respiratoires
WO2005097018A1 (fr) 2004-03-09 2005-10-20 Philippe Perez Dispositif de respirateur compact a distribution d'air sous pression au niveau des voies respiratoire
US10842957B2 (en) 2004-04-09 2020-11-24 ResMed Pty Ltd Nasal assembly
US9895505B2 (en) 2004-04-09 2018-02-20 Resmed Limited Nasal assembly
US10039893B2 (en) 2004-06-16 2018-08-07 Resmed Limited Respiratory mask assembly
US11071839B2 (en) 2004-06-16 2021-07-27 ResMed Pty Ltd Cushion for a respiratory mask assembly
US9375545B2 (en) 2004-06-16 2016-06-28 Resmed Limited Respiratory mask assembly
US11529489B2 (en) 2004-06-16 2022-12-20 ResMed Pty Ltd Cushion for a respiratory mask assembly
US10668241B2 (en) 2004-06-16 2020-06-02 ResMed Pty Ltd Cushion for a respiratory mask assembly
FR2890568A1 (fr) 2005-09-09 2007-03-16 Philippe Perez Dispositif portatif de distribution de gaz
US10137270B2 (en) 2005-10-14 2018-11-27 Resmed Limited Cushion to frame assembly mechanism
US10434273B2 (en) 2005-10-14 2019-10-08 ResMed Pty Ltd Cushion to frame assembly mechanism
US11833305B2 (en) 2005-10-14 2023-12-05 ResMed Pty Ltd Cushion/frame assembly for a patient interface
US11633564B2 (en) 2005-10-14 2023-04-25 ResMed Pty Ltd Cushion to frame assembly mechanism
US11369765B2 (en) 2005-10-14 2022-06-28 ResMed Pty Ltd Cushion to frame assembly mechanism
US11529487B2 (en) 2005-10-14 2022-12-20 ResMed Pty Ltd Cushion to frame assembly mechanism
US10183138B2 (en) 2005-10-25 2019-01-22 Resmed Limited Interchangeable mask assembly
US11052211B2 (en) 2005-10-25 2021-07-06 ResMed Pty Ltd Interchangeable mask assembly
US9962510B2 (en) 2005-10-25 2018-05-08 Resmed Limited Respiratory mask assembly
US11890418B2 (en) 2005-10-25 2024-02-06 ResMed Pty Ltd Interchangeable mask assembly
US9381316B2 (en) 2005-10-25 2016-07-05 Resmed Limited Interchangeable mask assembly
US11596757B2 (en) 2005-10-25 2023-03-07 ResMed Pty Ltd Interchangeable mask assembly
US10864342B2 (en) 2007-01-30 2020-12-15 ResMed Pty Ltd Mask with removable headgear connector
US11992618B2 (en) 2007-01-30 2024-05-28 ResMed Pty Ltd Mask with headgear and rigidizers
US8960196B2 (en) 2007-01-30 2015-02-24 Resmed Limited Mask system with interchangeable headgear connectors
US9937315B2 (en) 2007-01-30 2018-04-10 Resmed Limited Mask with removable headgear connector
US11969552B2 (en) 2008-03-04 2024-04-30 ResMed Pty Ltd Mask system with radially positioned vent holes
US11833277B2 (en) 2008-03-04 2023-12-05 ResMed Pty Ltd Mask system with snap-fit shroud
US10751496B2 (en) 2008-03-04 2020-08-25 ResMed Pty Ltd Mask system with shroud
US9027556B2 (en) 2008-03-04 2015-05-12 Resmed Limited Mask system
US11077274B2 (en) 2008-03-04 2021-08-03 ResMed Pty Ltd Mask system with snap-fit shroud
US11529486B2 (en) 2008-03-04 2022-12-20 ResMed Pty Ltd Mask system with shroud having extended headgear connector arms
US9962511B2 (en) 2008-03-04 2018-05-08 Resmed Limited Mask system with snap-fit shroud
US9757533B2 (en) 2008-03-04 2017-09-12 Resmed Limited Mask system with snap-fit shroud
US9770568B2 (en) 2008-03-04 2017-09-26 Resmed Limited Mask system with snap-fit shroud
US11395893B2 (en) 2008-03-04 2022-07-26 ResMed Pty Ltd Mask system with snap-fit shroud
US11529488B2 (en) 2008-03-04 2022-12-20 ResMed Pty Ltd Mask system with snap-fit shroud
US9950131B2 (en) 2008-03-04 2018-04-24 Resmed Limited Mask system with snap-fit shroud
US11331447B2 (en) 2008-03-04 2022-05-17 ResMed Pty Ltd Mask system with snap-fit shroud
US11305085B2 (en) 2008-03-04 2022-04-19 ResMed Pty Ltd Mask system with snap-fit shroud
CN103384543A (zh) * 2011-02-11 2013-11-06 皇家飞利浦电子股份有限公司 具有提供集成的气体流动和输送的头盔的患者界面装置
US10828443B2 (en) 2011-04-15 2020-11-10 Fisher & Paykel Healthcare Limited Interface comprising a rolling nasal bridge portion
US10842955B2 (en) 2011-04-15 2020-11-24 Fisher & Paykel Healthcare Limited Interface comprising a rolling nasal bridge portion
US11883591B2 (en) 2011-04-15 2024-01-30 Fisher & Paykel Healthcare Limited Interface comprising a rolling nasal bridge portion
US10603456B2 (en) 2011-04-15 2020-03-31 Fisher & Paykel Healthcare Limited Interface comprising a nasal sealing portion
US11559647B2 (en) 2011-04-15 2023-01-24 Fisher & Paykel Healthcare Limited Interface comprising a nasal sealing portion
US10828441B2 (en) 2011-04-15 2020-11-10 Fisher & Paykel Healthcare Limited Interface comprising a rolling nasal bridge portion
US10828442B2 (en) 2011-04-15 2020-11-10 Fisher & Paykel Healthcare Limited Interface comprising a rolling nasal bridge portion
US11065406B2 (en) 2011-04-15 2021-07-20 Fisher & Paykel Healthcare Limited Interface comprising a rolling nasal bridge portion
US10828440B2 (en) 2011-04-15 2020-11-10 Fisher & Paykle Healthcare Limited Interface comprising a rolling nasal bridge portion
US10835697B2 (en) 2011-04-15 2020-11-17 Fisher & Paykel Healthcare Limited Interface comprising a rolling nasal bridge portion
US10946155B2 (en) 2012-09-04 2021-03-16 Fisher & Paykel Healthcare Limited Valsalva mask
US11065412B2 (en) 2012-09-04 2021-07-20 Fisher & Paykel Healthcare Limited Valsalva mask
US11419999B2 (en) 2013-08-05 2022-08-23 Fisher & Paykel Healthcare Limited Seal for a patient interface, interface assemblies and aspects thereof
WO2015168077A1 (fr) * 2014-04-28 2015-11-05 Scott Technologies, Inc. Respirateur facial filtrant ayant un emplacement de filtre facial optimisé
US11701486B2 (en) 2014-06-17 2023-07-18 Fisher & Paykel Healthcare Limited Patient interfaces
US11305084B2 (en) 2014-08-25 2022-04-19 Fisher & Paykel Healthcare Limited Respiratory mask and related portions, components or sub-assemblies
US10518054B2 (en) 2014-08-25 2019-12-31 Fisher & Paykel Healthcare Limited Respiratory mask and related portions, components or sub-assemblies
US11452833B2 (en) 2016-10-05 2022-09-27 Fisher & Paykel Healthcare Limited. Patient interfaces
USD823455S1 (en) 2017-02-23 2018-07-17 Fisher & Paykel Healthcare Limited Cushion assembly for breathing mask assembly
USD823454S1 (en) 2017-02-23 2018-07-17 Fisher & Paykel Healthcare Limited Cushion assembly for breathing mask assembly
USD969306S1 (en) 2017-02-23 2022-11-08 Fisher & Paykel Healthcare Limited Cushion assembly for breathing mask assembly
USD994876S1 (en) 2017-02-23 2023-08-08 Fisher & Paykel Healthcare Limited Cushion assembly for breathing mask assembly
USD837973S1 (en) 2017-02-23 2019-01-08 Fisher & Paykel Healthcare Limited Cushion assembly for breathing mask assembly
USD824020S1 (en) 2017-02-23 2018-07-24 Fisher & Paykel Healthcare Limited Cushion assembly for breathing mask assembly
DE102020108709A1 (de) 2020-03-30 2021-09-30 Laura Hepp Absaugvorrichtung zum Absaugen von Flüssigkeit aus einem Mundraum eines Patienten sowie Absaugsystem
DE102020108709B4 (de) 2020-03-30 2022-10-20 Laura Hepp Absaugvorrichtung zum Absaugen von Flüssigkeit aus einem Mundraum eines Patienten sowie Absaugsystem
EP3900796A1 (fr) * 2020-04-20 2021-10-27 Rhodius GmbH Masque de protection
DE102020122882A1 (de) 2020-09-01 2022-03-03 Sycotec Gmbh & Co. Kg Vorrichtung zum Abführen von Aerosolen
DE102020122882B4 (de) 2020-09-01 2023-01-26 Sycotec Gmbh & Co. Kg Vorrichtung zum Abführen von Aerosolen
US20220111233A1 (en) * 2020-10-14 2022-04-14 Invent-it BV Mask with Composite Air Duct

Also Published As

Publication number Publication date
DE4307754A1 (de) 1994-04-07
AU4701293A (en) 1994-02-14

Similar Documents

Publication Publication Date Title
WO1994002190A1 (fr) Systeme et procede d'amenee ou d'evacuation controlees de l'air respire
WO1994002190A9 (fr) Systeme et procede d'amenee ou d'evacuation controlees de l'air respire
DE69731559T2 (de) Gesichts- und atemschutzsystem
DE69824612T3 (de) Gesichtsmaske mit herabziehbarer vorrichtung
DE60035042T2 (de) Gesichtsmaske mit eingebautem lüfter
DE19817332C2 (de) Atemmaske
DE69626508T2 (de) Augenschutzblende für atmungsmaske
DE3522873C2 (fr)
DE102021203264A1 (de) Atemschutzmaske
DE60023054T2 (de) Strömungsanzeiger für Beatmungsgeräte
DE102016122411A1 (de) Atemhalbmaske
DE102016013718A1 (de) Atemhalbmaske
DE202020104278U1 (de) Mundschutzanordnung sowie Gesichtsschutzanordnung
DE102021112075A1 (de) Vorrichtung zum Schutz vor Kontamination
WO2013156017A1 (fr) Cagoule de protection pour salles blanches
DE102018005343A1 (de) Atemschutzvorrichtung
DE202020001807U1 (de) Schutzschirm-Filter mit Belüftung
DE202020003842U1 (de) Mund- und Nasenschutz
WO2021214651A1 (fr) Masque
DE102016003649B4 (de) Atemschutzgerät und Verfahren zum Betrieb eines Atemschutzgeräts
EP3892338A1 (fr) Masque de protection respiratoire
DE102021116311B4 (de) Schutzhelm zur Kontaktvermeidung mit Krankheitserregern
DE102021002423B3 (de) Mund- und Nasenmaske
DE102020114514B4 (de) Atemschutzmaske mit austauschbaren Filterelementen
DE2908451C2 (fr)

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AT AU BB BG BR CA CH CZ DE DK ES FI GB HU JP KP KR LK LU MG MN MW NL NO NZ PL PT RO RU SD SE SK UA US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN ML MR NE SN TD TG

COP Corrected version of pamphlet

Free format text: PAGES 1-23,DESCRIPTION,PAGES 24-30,CLAIMS,AND PAGES 1/10-10/10,DRAWINGS,REPLACED BY NEW PAGES BEARING THE SAME NUMBER;DUE TO LATE TRANSMITTAL BY THE RECEIVING OFFICE

121 Ep: the epo has been informed by wipo that ep was designated in this application
122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase

Ref country code: CA