WO2001087394A2 - Systeme de distribution d'oxygene a un patient - Google Patents

Systeme de distribution d'oxygene a un patient Download PDF

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Publication number
WO2001087394A2
WO2001087394A2 PCT/CA2001/000622 CA0100622W WO0187394A2 WO 2001087394 A2 WO2001087394 A2 WO 2001087394A2 CA 0100622 W CA0100622 W CA 0100622W WO 0187394 A2 WO0187394 A2 WO 0187394A2
Authority
WO
WIPO (PCT)
Prior art keywords
oxygen
patient
boom
diffuser
headband
Prior art date
Application number
PCT/CA2001/000622
Other languages
English (en)
Other versions
WO2001087394A3 (fr
Inventor
Maurice Lavimodiere, Jr.
Lee Mcdonald
Original Assignee
Southmedic Incorporated
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 US09/572,637 external-priority patent/US6450166B1/en
Application filed by Southmedic Incorporated filed Critical Southmedic Incorporated
Priority to JP2001583858A priority Critical patent/JP4694755B2/ja
Priority to AU5603301A priority patent/AU5603301A/xx
Priority to AU2001256033A priority patent/AU2001256033B2/en
Priority to EP01929150A priority patent/EP1289592A2/fr
Priority to CA002409103A priority patent/CA2409103C/fr
Priority to NZ524698A priority patent/NZ524698A/en
Priority to MXPA02011267A priority patent/MXPA02011267A/es
Publication of WO2001087394A2 publication Critical patent/WO2001087394A2/fr
Publication of WO2001087394A3 publication Critical patent/WO2001087394A3/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
    • A61M16/06—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
    • 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
    • A61M16/0816—Joints or connectors
    • A61M16/0841—Joints or connectors for sampling
    • A61M16/085—Gas sampling
    • 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
    • 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
    • A61M2206/00—Characteristics of a physical parameter; associated device therefor
    • A61M2206/10—Flow characteristics
    • A61M2206/14—Static flow deviators in tubes disturbing laminar flow in tubes, e.g. archimedes screws
    • 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
    • A61M2209/00—Ancillary equipment
    • A61M2209/08—Supports for equipment
    • A61M2209/082—Mounting brackets, arm supports for equipment
    • 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
    • A61M2230/00—Measuring parameters of the user
    • A61M2230/40—Respiratory characteristics
    • A61M2230/43—Composition of exhalation
    • A61M2230/432—Composition of exhalation partial CO2 pressure (P-CO2)
    • 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
    • A61M2230/00—Measuring parameters of the user
    • A61M2230/40—Respiratory characteristics
    • A61M2230/43—Composition of exhalation
    • A61M2230/435—Composition of exhalation partial O2 pressure (P-O2)

Definitions

  • the present invention relates to a novel system for delivery of oxygen to a patient, and more particularly relates to a device which can be used to replace conventional oxygen masks and nose cannula oxygen delivery systems.
  • Mask oxygen therapy has been around for a very long time and has seen virtually no changes. Problems encountered with this style of therapy are well known but unavoidable using the mask as it is supplied today. A number of vendors supply oxygen masks as a commodity item, with the result that there has been little or no improvement in the technology because of the low profit margins accompanying the sale of such masks.
  • Conventional oxygen masks comprise tent like structures which are strapped over the nose and mouth of a patient, often using an elastic band or bands behind the patient's ears or head. Oxygen is fed from a supply through a tube into the bottom portion of the mask at the front of the patient.
  • the mask cannot be used during facial surgery due to intrusion into the sterile field.
  • the mask cannot be worn if the patient has facial injuries such as burns.
  • the soft plastic masks are delivered in a deformed fashion.
  • the face mask usually necessitates clipping the oxygen delivery tube in front of the patient at the bottom of the mask. This is awkward and inconvenient as it may interfere with a patient's movement.
  • the face mask creates irregular infusion of oxygen by the patient, with exhaled air from the patient being mixed with oxygen in the mask.
  • nasal cannulas include:
  • the patient may not be a nose breather.
  • U.S. Patent No. 6,065,473 issued May 23, 2000 of McCombs et al.
  • This reference describes and illustrates an oxygen delivery system for non-medical uses, for instance in oxygen bars or for oxygen enhancing during exercises such as aerobics or weight lifting.
  • the system comprises a re-usable headset and a conduit to direct oxygen from a source to a headset and to a region proximate to the user's nose and mouth.
  • the conduit is supported by a delivery arm which is preset to a predetermined distance from a user's head for proper supply of oxygen to the user's nose and mouth area.
  • a lightweight oxygen delivery system for a patient comprising a curved resilient headband to extend from side to side over a patient's head and to be comfortably seatably engaged thereon.
  • a clip is secured towards one end of the headband.
  • An elongated tubular boom is secured at one end to the clip to extend and hold its position, when in operation from said one end at the clip to another end located at a space in front of, and proximal to the patient's nose and mouth.
  • An oxygen diffuser port is located at the other end of the boom, to deliver oxygen from the boom to the space in the vicinity of the patient's nose and mouth.
  • the clip is constructed so as to hold securely an oxygen delivery tube from an oxygen source in fluid communication with said one end of the boom so as to deliver oxygen from the source to the boom for discharge through the diffuser.
  • the boom further comprises a second tube for oxygen/carbon dioxide monitoring.
  • This second tube is secured at one end to the clip and has at its other end an oxygen/carbon dioxide inlet port when in operation to be located at a space proximal to the patient's nose and mouth.
  • the clip is constructed so as also to hold securely an oxygen/carbon dioxide monitortube in fluid communication with the oxygen/carbon dioxide tube of the boom, for delivery of oxygen/carbon dioxide from the space in the vicinity of the patient's nose and mouth to an oxygen/carbon dioxide monitor.
  • an elongated rigid sleeve is provided, one end of which is pivotably mounted to an exterior side of the headband near an end thereof, to rotate 360° with respect to the headband about an axis passing through the headband and a portion of the sleeve where it is mounted.
  • An elongated tubular boom is secured within the sleeve to extend from the other end of the sleeve so that the free end of the boom is located when in operation at a space in front of, and proximal to, the patient's nose and mouth.
  • An oxygen diffuser is positioned at said free end of the boom. In operation, oxygen is delivered from the boom to the space in the vicinity of the patient's nose and mouth.
  • the end of the boom within the sleeve, and the sleeve, are constructed so as to hold a portion of an oxygen, delivery tube from an oxygen source in fluid communication with that end of the boom so as to deliver oxygen from the source to the boom for discharge through the diffuser.
  • the system of the present invention avoids many of the problems inherent with conventional medical oxygen delivery systems such as face masks and nasal cannulae. It has no facial contact and allows both nose and mouth breathing preferences with more efficient oxygen delivery.
  • FIGURE 1 is a perspective view of an oxygen delivery system according to the present invention mounted on the head of a patient.
  • FIGURE 2 is a perspective view of an alternative embodiment of oxygen delivery system according to the present invention.
  • FIGURE 3 is a perspective view of yet a further alternative embodiment of oxygen delivery system according to the present invention.
  • FIGURE 4 is a section view of the diffuser port of the devices of Figures 1 , 2 and 3.
  • FIGURE 5 is a perspective view of a further embodiment and of an oxygen delivery device according to the present invention mounted on the head of a patient.
  • FIGURE 6 is a section view of the diffuser of the device of Figure 5.
  • FIGURE 7 is a side view of the diffuser of the device of Figure 5 in position in front of the face of a wearer.
  • FIGURE 8 is a schematic side view of the device of Figure 5 on a wearer's head, illustrating the adjustability of the headband.
  • FIGURE 9 is a partial view of the device of Figure 5 showing the sleeve, boom and oxygen inlet tube.
  • FIGURE 10 is a partial view of the boom of the device of Figure 5 when worn on a patient, illustrating its positioning flexibility.
  • FIGURE 11 is a graph illustrating oxygen concentrations delivered to patient's in percentages, based on flow rate settings, of the device of Figure 5 when situated at a distance of 2 cm from a wearer's face, when compared to oxygen concentrations delivered by a conventional oxygen mask.
  • FIGURES 12a and 12b are schematic views, from the side, showing the concentration of oxygen in the air around the diffuser body during operation of the system, respectively when the patient is not inhaling, and when the patient inhales.
  • FIG. 1 there is shown a lightweight delivery system 2, in accordance with the invention, mounted on the head 4 of a patient.
  • the system comprises a curved resilient headband 6 which is provided with suitable adjustment means such as telescopic portions 8 and swivel connections 9, to enable the headband to be seated comfortably, from side to side over or behind the patient's head (or in positions therebetween).
  • a pair of soft pads 10, made of rubber or other suitable material, are secured to swivel connections 9 and to the insides of the end portions of headband 6.
  • a clip 12 which in the illustrated embodiment is of sleeve-like configuration.
  • Boom 14 Secured to clip 12 is a tubular boom 14 which extends downwardly and forwardly to end, as illustrated, at a space in the vicinity of the patient's nose and mouth.
  • Boom 14 is preferably a plastic tube in which is embedded a positioning wire 16 which enables the tube to be bent into an appropriate shape to position the lower end 18 of boom 14 appropriately for delivery of oxygen to the patient, and to be held in that position.
  • an oxygen diffuser 20 At this lower end 18 of boom 14 is secured an oxygen diffuser 20 through which oxygen, fed into boom 14, is passed into the space in front of the patient's nose and mouth.
  • the boom construction of the system according to the present invention enables adjustment from left to right and from front to back for precise oxygen delivery.
  • the diffuser 20 preferably sits centrally approximately one to two centimeters from the patient's mouth and nose. Diffuser 20 allows for the administration of the oxygen flow to the patient without the patient feeling a direct flow of air onto his/her face.
  • an oxygen delivery tube 22 extends and is releasably engaged in the sleeve of clip 12 as illustrated for fluid communication with the tubular boom 14. In this manner clip 12 provides for oxygen delivery from tube 22 to boom 14 and diffuser 20.
  • tubular boom 14 incorporates a pair of tubes, one of which (23) is designed for oxygen delivery, the other of which (24) is intended to collect oxygen/carbon dioxide in the space of the vicinity of the patient's nose and mouth and deliver that sample to an oxygen/carbon dioxide monitor (not illustrated) through tube 26.
  • Tube 26 is releasably secured, during operation, within clip 12, for fluid communication with the corresponding oxygen/carbon dioxide monitor tube 24 of boom 14.
  • tubes 23 and 24 are of integral construction.
  • An appropriate oxygen/carbon dioxide inlet port 28 ( Figure 4) is associated with diffuser 20, as will be described in more detail subsequently.
  • the oxygen delivery system according to Figures 1 and 2 is comfortable and adjustable for all head sizes.
  • the use of the thin side cushions allows a patient to lie on his/her side with comfort.
  • the device of Figures 1 and 2 is shown with a headband, optional means of securing boom 14 in position for oxygen delivery to a patient by means of a conventional over-the-ear mount 30 is shown in Figure 3.
  • Other conventional securing means may also be appropriate.
  • a preferred form of diffuser 20 is detailed in section in Figure 4. Its body 32, having an interior surface of generally concave configuration, circumscribes the oxygen outlet end of oxygen delivery tube 23 and directs the flow of oxygen generally towards the patient's mouth and nose when the diffuser 20 is properly positioned and operational.
  • a mushroom-shaped baffle 36 is seated over oxygen outlet 34 so as to assist in the diffusion of oxygen and avoid a direct flow of oxygen towards the patient's face. Baffle 36 impedes oxygen flow from the rear of the body 32, inducing a transmission from jet to turbulent flow.
  • baffle 36 and body 32 directly influence the mixing characteristics between pure oxygen stream and the ambient air (containing approximately 21% oxygen by volume), and thus determine the oxygen content of the plume of oxygen-enriched air delivered from the diffuser to the surface of the patient's face.
  • the baffle 36 may have a passageway 38 to permit gas analysis of expired gases, passageway 38 constituting a sampling port which is bored on center and axially through the stem 40 of baffle 36.
  • body 32 of diffuser 20 has a contoured inner surface, forming a somewhat triangular cup shape which follows the shape of the nose/mouth nexus of a patient, thereby forming a shaped plume that directs the oxygen stream towards the patient's face.
  • the enclosed volume of that cup may be modified to accommodate a larger plume and increase the total oxygen delivered during respiratory inspiration.
  • the wall of body 32, near outer rim 48 becomes more "vertical" (with opposite sides being parallel) than outwardly extending, as are the lower portions of the body.
  • This shaping of the rim edges of the body permits a concentrating of oxygen and a shaping of the plume of oxygen-enriched air, providing a more precise direction of that plume towards the patient's nose/mouth.
  • the body 32 off diffuser 20 swivels about the oxygen outlet 34 to enable proper orienting of the diffuser when the boom is in either left hand or right hand mode.
  • body 32 and baffle 36 may be modified to suit the requirements of a particular application or user need.
  • a passage way 38 through the stem 40 of baffle 36 communicates directly with oxygen/carbon dioxide monitor tube 24, thereby enabling a sample of oxygen or carbon dioxide, in the region of the patient's mouth and nose, to be drawn to the oxygen/carbon dioxide monitor (situated at a remote location)
  • a ridge or a plurality of scented material holding pockets 46, in the surface of diffuser body 32 may be provided for purposes of aroma therapy a layer of scented material may be coated on the back of diffuser 20 .
  • a curved resilient headband 50 which is of a sufficient size to fit most heads without exerting too much pressure.
  • the headband has widened ends 52 which gently grip the patient's head, spreading the pressure over these widen ends, so as to hold the headband in position when on a patient's head.
  • the inner surfaces of ends 52 are provided with inwardly extending ridges 54 ( Figure 9) which facilitate the gripping action.
  • apertures 56 in the wider upper portion 58 by capturing some of the patient's hair (where the patient has hair) within, further assist in maintaining the head set in a particular position against unintended dislodgement on a patient's head.
  • the headband is for example made of stiff nylon which gives good tensile strength and resiliency.
  • Figure 8 illustrates various positions and the range of positions, for headband 50 to be operatively positioned on a patient's head.
  • headband 50 To one of the widened ends 52 of headband 50 is pivotably secured at pivot 59 sleeve 60.
  • This pivot is illustrated as being a screw. Alternatively, other conventional pivot means may be used.
  • headband 50 may be provided with detachable securing means for sleeve 60, so that sleeve 60, boom 62 and diffuser 20 may be replaced on a particular headband 50. This pivoting occurs about an axis (A) as illustrated extending laterally through the upper end of sleeve 60 and associated headband 50.
  • This pivoting motion permits the headband to have the range of motion illustrated in Figure 8, relative to the sleeve, and further enables the sleeve to be pivoted 180 ° to convert the system from a left hand one, as illustrated, to a right hand one, as will be described in more detail subsequently.
  • Longitudinally slidably secured in sleeve 60 is a tubular boom 62 which extends downwardly and forwardly to end, as illustrated, at a space in the vicinity of the patient's nose and mouth.
  • Boom 62 is preferably a plastic tube in which is embedded a positioning wire 64 which enables the tube to be bent into an appropriate shape to position the lower end 66 of boom 62 appropriately for delivery of oxygen to the patient, and to be held in that position, as illustrated in Figure 10.
  • an oxygen diffuser 20 similar to that of Figure 1 to 4 through which oxygen, fed to boom 62, is passed into the space in front of the patient's nose and mouth. It is preferred that the distance between the patient's face and the diffuser be about 2 cm or less, as can be seen in Figure 7. Diffuser 20 is constructed so as to allow for administration of the oxygen flow to the patient without the patient feeling a direct flow of air onto his or her face.
  • an oxygen delivery tube 68 extends and is connected to the upper end of boom 62 within sleeve 60 for fluid communication with boom 62. Oxygen delivery tube 68 is preferably frictionally engaged within clip portions 70 of sleeve 60.
  • the present system for delivery of oxygen to a patient, over prior art devices, including the lack of facial contact of the present system, the elimination of the possibility of the patient aspirating should the patient be ill during oxygen therapy, the fact that it allows both nose and mouth breathing preferences and the deflection of oxygen flow away from the face of the user during absence of inhalation, for increased patient comfort.
  • the system according to the present invention enables a patient to eat or speak in an unobstructed manner.
  • the system according to the present invention permits the headband 6 to be adjusted to be clear of any particular area on a patient's head and adjust for a wide range of patient sizes.
  • a plume 78 of oxygen enriched air leaves the diffuser. In operation, this plume will be in the vicinity of the patient's nose and mouth area.
  • the areas of highest increased oxygen concentration X in plume 78 remain in and near diffuser body 32 with the areas Y of moderately increased oxygen concentration and areas Z of lowest increased oxygen concentration extending outwardly from diffuser body 32 as illustrated.
  • the areas X and Y of highest and moderate increased oxygen concentrations are drawn towards the patient's mouth and nose area, making these increased oxygen concentrations available to be inhaled by the patient.
  • the actual oxygen concentration for a 2 cm distance of Applicant's device from a patient's face ranges between 46% at a flow rate setting of 2 (approximately litres per minute) to 66% at a flow rate setting of 12 (approximately litres per minute), as compared to an oxygen concentration delivery of between 22% and 30% for flow rate settings of from 2 to 10 in a conventional oxygen mask.
  • higher concentrations of oxygen can be delivered to a patient, using the system of the present invention, at lower oxygen flow rates, and with conventional face masks, providing a significant saving in oxygen.
  • Advantages of the present system for delivery of oxygen to a patient, over prior art devices, include the facts: the possibility of the patient aspirating is eliminated should they be ill during oxygen therapy, it is lightweight, it does not give the patient the feeling of being sick, instead it has a high tech look that is positive for the patient, - it allows for the sampling and monitoring of expired carbon dioxide directly at the boom end, oxygen tubing comes off at the side instead of directly at the bottom of the mask as seen in traditional mask devices, making it easier for nursing staff to handle, - the device does not outgas as often happens with full face masks, there is no smell of plastic, , there is no need to remove oxygen therapy while patient is eating or speaking, it is well tolerated by patients; it provides comfort not found with traditional devices, it could be reused for a longer period of time than conventional masks and nose cannula systems, it allows for the administration humidified air as well as non- humidified air, - one size adjusts for a wide range of patient sizes, it is effective whether the patient is a mouth or nose breather
  • the oxygen delivery system of the present invention is envisaged as having particular application where a patient has his/her faculties and is not in a state where the headband might be unintentionally dislodged, or the diffuser and associated boom might be unintentionally displaced from normal, operative position.
  • the device according to the present invention is not only likely to be considered to be stylish by older children, it also could support decorations to represent popular cartoon characters, or the like* to appeal to younger children.

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  • 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)
  • Respiratory Apparatuses And Protective Means (AREA)

Abstract

La présente invention concerne un système de distribution d'oxygène léger destiné à un patient, qui comprend un serre-tête souple recourbé placé d'un côté à l'autre de la tête d'un patient en passant par le sommet du crâne de façon à être positionné dans un contact confortable. Une pince est fixée sur une extrémité de ce serre-tête. Une rampe tubulaire effilée est fixée au niveau d'une extrémité de cette pince de façon à se prolonger de cette extrémité de la pince à une autre extrémité placée en face et à proximité du nez et de la bouche du patient, et de façon à se maintenir en position en cours de fonctionnement. Un orifice diffuseur d'oxygène est situé à l'autre extrémité de cette rampe, de façon à distribuer l'oxygène en provenance de la rampe dans l'espace immédiat entourant le nez et la bouche du patient. La pince est fabriquée de façon tenir fermement un tube de distribution d'oxygène partant d'une source d'oxygène en communication fluidique avec cette extrémité de la rampe afin de distribuer l'oxygène de cette source à la rampe et de l'évacuer par le diffuseur.
PCT/CA2001/000622 2000-05-17 2001-05-07 Systeme de distribution d'oxygene a un patient WO2001087394A2 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
JP2001583858A JP4694755B2 (ja) 2000-05-17 2001-05-07 患者用酸素供給システム
AU5603301A AU5603301A (en) 2000-05-17 2001-05-07 Patient oxygen delivery system
AU2001256033A AU2001256033B2 (en) 2000-05-17 2001-05-07 Patient oxygen delivery system
EP01929150A EP1289592A2 (fr) 2000-05-17 2001-05-07 Systeme de distribution d'oxygene a un patient
CA002409103A CA2409103C (fr) 2000-05-17 2001-05-07 Systeme de distribution d'oxygene a un patient
NZ524698A NZ524698A (en) 2000-05-17 2001-05-07 Patient oxygen delivery system
MXPA02011267A MXPA02011267A (es) 2000-05-17 2001-05-07 Sistema de suministro de oxigeno para paciente.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US09/572,637 US6450166B1 (en) 2000-05-17 2000-05-17 Patient oxygen delivery system
US09/572,637 2000-05-17
US09/849,863 2001-05-04
US09/849,863 US6631719B2 (en) 2000-05-17 2001-05-04 Lightweight patient oxygen delivery system

Publications (2)

Publication Number Publication Date
WO2001087394A2 true WO2001087394A2 (fr) 2001-11-22
WO2001087394A3 WO2001087394A3 (fr) 2002-05-02

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PCT/CA2001/000622 WO2001087394A2 (fr) 2000-05-17 2001-05-07 Systeme de distribution d'oxygene a un patient

Country Status (6)

Country Link
EP (1) EP1289592A2 (fr)
AU (2) AU5603301A (fr)
CA (1) CA2409103C (fr)
MX (1) MXPA02011267A (fr)
NZ (1) NZ524698A (fr)
WO (1) WO2001087394A2 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006010254A1 (fr) * 2004-07-30 2006-02-02 Southmedic Incorporated Systemes de distribution d'oxygene
EP2319569A3 (fr) * 2009-10-28 2011-08-03 Nihon Kohden Corporation Masque d'oxygène
WO2011104324A3 (fr) * 2010-02-27 2012-05-03 Fraunhofer Gesellschaft zur Förderung der angewandten Forschung e.V. Dispositif pour l'humidification de l'air de respiration d'un utilisateur et son utilisation
WO2013144816A1 (fr) * 2012-03-29 2013-10-03 Koninklijke Philips N.V. Ensemble interface pour patient
WO2018220535A1 (fr) * 2017-05-30 2018-12-06 Fisher & Paykel Healthcare Limited Casque pour interface patient
CN109602991A (zh) * 2018-10-31 2019-04-12 陕西沐石医疗技术有限公司 密闭式氧气湿化装置
US11253666B2 (en) 2016-07-22 2022-02-22 Nihon Kohden America, Inc. Masks, systems, and methods for assisting respiration including scattering chamber

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Publication number Priority date Publication date Assignee Title
CN111921115A (zh) * 2020-08-19 2020-11-13 山东体育学院 一种骑行训练专用空气净化装置及组装方法

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US5575282A (en) 1991-02-22 1996-11-19 Paul Ritzau Pari-Werk Gmbh Oxygen distributor with both mouth and nose delivery ports
US6065473A (en) 1997-06-16 2000-05-23 Airsep Corporation Non-contact gas dispenser and apparatus for use therewith

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Cited By (9)

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Publication number Priority date Publication date Assignee Title
WO2006010254A1 (fr) * 2004-07-30 2006-02-02 Southmedic Incorporated Systemes de distribution d'oxygene
EP2319569A3 (fr) * 2009-10-28 2011-08-03 Nihon Kohden Corporation Masque d'oxygène
US9486598B2 (en) 2009-10-28 2016-11-08 Nihon Kohden Corporation Oxygen mask
US10413697B2 (en) 2009-10-28 2019-09-17 Nihon Kohden Corporation Oxygen mask
WO2011104324A3 (fr) * 2010-02-27 2012-05-03 Fraunhofer Gesellschaft zur Förderung der angewandten Forschung e.V. Dispositif pour l'humidification de l'air de respiration d'un utilisateur et son utilisation
WO2013144816A1 (fr) * 2012-03-29 2013-10-03 Koninklijke Philips N.V. Ensemble interface pour patient
US11253666B2 (en) 2016-07-22 2022-02-22 Nihon Kohden America, Inc. Masks, systems, and methods for assisting respiration including scattering chamber
WO2018220535A1 (fr) * 2017-05-30 2018-12-06 Fisher & Paykel Healthcare Limited Casque pour interface patient
CN109602991A (zh) * 2018-10-31 2019-04-12 陕西沐石医疗技术有限公司 密闭式氧气湿化装置

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NZ524698A (en) 2004-02-27
EP1289592A2 (fr) 2003-03-12
AU2001256033B2 (en) 2005-03-17
WO2001087394A3 (fr) 2002-05-02
AU5603301A (en) 2001-11-26
CA2409103A1 (fr) 2001-11-22
MXPA02011267A (es) 2004-09-09
CA2409103C (fr) 2009-01-06

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