US20120301267A1 - Conducting unit, and conducting methods - Google Patents

Conducting unit, and conducting methods Download PDF

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Publication number
US20120301267A1
US20120301267A1 US12/301,885 US30188507A US2012301267A1 US 20120301267 A1 US20120301267 A1 US 20120301267A1 US 30188507 A US30188507 A US 30188507A US 2012301267 A1 US2012301267 A1 US 2012301267A1
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United States
Prior art keywords
inlet
noise
outlet
compressor
canceled
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.)
Abandoned
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US12/301,885
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English (en)
Inventor
Martin Baecke
Ingo Müller
Heiko Krause
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.)
TNI MEDICAL AG
Seleon GmbH
Original Assignee
Seleon GmbH
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 Seleon GmbH filed Critical Seleon GmbH
Assigned to TNI MEDICAL AG reassignment TNI MEDICAL AG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: KRAUSE, HEIKO, BAECKE, MARTIN
Assigned to TNI MEDICAL AG reassignment TNI MEDICAL AG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: KRAUSE, HEIKO, BAECKE, MARTIN
Publication of US20120301267A1 publication Critical patent/US20120301267A1/en
Abandoned legal-status Critical Current

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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
    • A61M16/0057—Pumps 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
    • A61M16/0057—Pumps therefor
    • A61M16/0063—Compressors
    • 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
    • A61M16/107—Filters in a path in the inspiratory path
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D23/00—Other rotary non-positive-displacement pumps
    • F04D23/008—Regenerative pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/16—Combinations of two or more pumps ; Producing two or more separate gas flows
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/58—Cooling; Heating; Diminishing heat transfer
    • F04D29/582—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps
    • F04D29/584—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps cooling or heating the machine
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
    • F04D29/663—Sound attenuation
    • F04D29/664—Sound attenuation by means of sound absorbing material
    • 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
    • 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
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/36—General characteristics of the apparatus related to heating or cooling
    • A61M2205/3606—General characteristics of the apparatus related to heating or cooling cooled
    • 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
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/36—General characteristics of the apparatus related to heating or cooling
    • A61M2205/362—General characteristics of the apparatus related to heating or cooling by gas flow
    • 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
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/42—Reducing noise

Definitions

  • the field of the invention relates to delivering units for therapeutic apparatus for splinting the upper respiratory tract, and to delivering methods performed by these therapeutic apparatus. More specifically, the invention relates to delivering units and delivering methods for TNI-apparatus.
  • TNI-apparatus are known, for example, from WO 02/062413 A2, in which they are referred to as anti-snoring apparatus.
  • anti-snoring apparatus effect a splinting of the upper respiratory tract by administering air into the nose of a user via a conventional or modified oxygen cannula.
  • the pressure in the respiratory tract is increased by some mbar above the ambient pressure.
  • TNI-apparatus refer to apparatus which are suited for transnasal inspiration.
  • the CPAP-therapy (continuous positive airway pressure) works similarly, whereby nose or face masks are used to administer the air at a pressure of around 5 mbar and at a maximum pressure of 30 mbar. As the masks are pressed against the face during the night, i.e. over a long period of time, by exerting a certain pressure, skin irritations may occur and, as a result, problems may arise in the acceptance by the patient.
  • evaporators specifically respiratory humidifiers
  • the evaporator known from WO 2006/012877 can be used particularly advantageously.
  • noise-insulation boxes are used in CPAP-apparatus, which lower the noise emission of CPAP-apparatus to the range of 30 dBA.
  • bypasses are installed in the noise-insulation box. This works according to the principle that an airflow can be diverted, while the noise cannot, which is clearly attenuated with each diversion.
  • the standard is two to three bypasses, as each bypass increases the pressure loss coefficient.
  • blower unit is known from WO 2004/046556 A2, which reduces the noise development in the blower unit, inter alia, by grids.
  • flexible connecting tubes between a pre noise absorber and a compressor and the post noise absorber and the pre noise absorber can provide both the conduction of air and the mechanical support of the pre noise absorber and the compressor, whereby the transmission of structure-borne noise is kept small.
  • a pressure-tight closure of the noise-insulation housing does not allow any direct noise to escape to the outside.
  • FIG. 1 shows an exploded view of a TNI-apparatus according to the invention
  • FIG. 2 shows an exploded view of a noise box of the TNI-apparatus
  • FIG. 3 shows an exploded view of a post noise absorber of the TNI-apparatus
  • FIG. 4 shows a top view of the post noise absorber
  • FIG. 5 shows an exploded view of a pre noise absorber of the TNI-apparatus
  • FIG. 6 shows a perspective view of the pre noise absorber
  • FIG. 7 shows an exploded view of a heat sink unit of the TNI-apparatus.
  • FIG. 8 shows a top view of the heat sink unit.
  • FIG. 1 shows an exploded view of a TNI-apparatus 1 according to the invention.
  • the TNI-apparatus 1 substantially comprises a housing bottom 2 , a housing hood 3 , a noise box housing 20 and an outer heat sink 41 .
  • Ambient air is aspirated through a filter cover 5 and an air filter foam 4 into a filter shaft 31 in the housing hood 3 .
  • Webs 32 are provided on the bottom of the filter shaft 31 , so that the air filter foam 4 does not directly sit on the bottom of the filter shaft 31 and air is aspirated over the total width of the air filter foam 4 .
  • a nozzle 33 is located on the bottom of the filter shaft 31 , over which the first inlet tube 15 is pushed.
  • the first inlet tube 15 is shown in a mounted condition and has approximately the profile of the number “5” without the upper bar. The excess length of the first inlet tube 15 is advantageous for the mounting and serves the noise control.
  • the lower end of the first inlet tube 15 is fitted onto a T-piece 16 .
  • a second inlet tube 17 leads to an inlet connection piece 19 , which leads into the inlet opening 27 of the noise box housing 20 .
  • a sealing ring made of an elastic material, e.g. silicone, serves to enclose the inlet connection piece 19 in the inlet opening 27 .
  • an inlet ⁇ /4-tube 18 is connected to the T-piece 16 , the end of which is sealed with a plug.
  • a tube sealed at one end can be called a blind tube.
  • the side channel compressor 101 generates a tonal sound at about 200 Hz, whereby the center frequency of this sound emission depends on the rotational speed of the side channel compressor 101 , which, again, depends on the required airflow, so that the center frequency fluctuates by about 200 Hz.
  • the three tubes 15 , 17 and 18 define a notch filter, which suppresses sound frequencies by 200 Hz or at least strongly attenuates them.
  • the length of the first inlet tube 15 is 320 mm.
  • the length of the inlet ⁇ /4-tube 18 is 450 mm and the length of the second inlet tube 17 is 300 mm.
  • blow-out sound absorber 13 On the blow-out opening of the noise box housing 20 a short blow-out connection piece 12 with a sound absorber connection 14 is provided, onto which a blow-out sound absorber 13 is pushed.
  • the blow-out sound absorber 13 is formed of a blind tube having a length of 500 mm, which is rolled up between a backside 21 of the noise box housing 20 and the corresponding wall of the housing hood 3 . All tubes have an inner diameter of 8 mm. Like a notch filter, the blow-out sound absorber 13 likewise acts at 200 Hz.
  • the noise absorption on the blow-out side is much less critical as on the inlet side.
  • the lid of the humidifier known from WO 2006/012877 A1 can be resonantly excited by tonal sound. This can be most efficiently suppressed by the blow-out sound absorber 13 , which is adjusted to the resonance of the lid of the humidifier.
  • blow-out sound absorber may be adjusted to the sound emission of the side channel compressor 101 of about 200 Hz.
  • resonant inlet sound absorbers can be used, wherein several inlet ⁇ /4-tubes connect T-pieces, to which ⁇ /4-blind tubes are connected, whereby each pair of tubes, i.e. the tube extending from a T-piece and the blind tube connected to the T-piece, is adjusted to a different sound wavelength and, thus, sound frequency, that is, for example, 180 Hz, 200 Hz and 220 Hz, so as to favorably attenuate the range of 170 Hz to 220 Hz by three notches.
  • sound frequency that is, for example, 180 Hz, 200 Hz and 220 Hz
  • Such multi-stage sound absorbers can also be used on the blow-out side.
  • the outer blowers 7 arrange for an airflow from venting slots 26 in the housing bottom 2 through the outer heat sink 41 past the blower tower 6 through the outer blowers 7 through a power supply unit 8 to the venting slots 34 in the housing hood 3 .
  • the lower edge of the blower tower 6 is bent away from the outer heat sink 41 over the total width.
  • the bent-away part 30 has a height of approximately 1 cm.
  • the noise box housing 20 stands on rubber-metal buffers 23 in corresponding recesses in the housing bottom 2 .
  • the power supply unit 8 is insulated against the noise box housing 20 by an insulating foil 9 made of Macrolon.
  • the printed circuit board 10 is insulated against the noise box housing 20 by such an insulating foil 11 .
  • the printed circuit board 10 is provided with a sub-D-socket, which is accessible from outside through a recess 29 in the housing bottom 2 . In the opening 25 an apparatus connector 28 is mounted.
  • the left side 22 of the noise box housing 20 is shown, with the outer heat sink 41 forming the front side.
  • FIG. 2 shows an exploded view of the noise box housing 20 .
  • the heat sink unit 40 is removed, which will be explained in more detail by means of FIGS. 7 and 8 .
  • the interior of the noise box housing is substantially formed by the side channel compressor 101 , which generates the noise, a pre noise absorber 80 , which will be explained in more detail by means of FIGS. 5 and 6 , and a post noise absorber 60 , which will be explained in more detail by means of FIGS. 3 and 4 .
  • a mass element 131 silicone foam buffers 132 having a thickness of 3 mm, a mass rear wall 133 and an absorber element 134 as well as an absorber rear wall 135 are provided.
  • the mass element 131 is formed of a steel sheet ST37, which is bent in a U-shaped manner and has a thickness of 1.5 mm and which shields the upper side and the major part of the left and right inner side of the noise box housing 20 .
  • the mass rear wall is likewise made of a steel sheet ST37 having a thickness of 1.5 mm and internally shields the backside 21 .
  • the vibrations of the steel sheets caused by the noise are internally attenuated by the absorber element 134 and the absorber rear wall 135 and externally by the silicone foam buffers 132 .
  • the absorber element 134 and the absorber rear wall 135 are made of neoprene having a thickness of 6 mm. Neoprene is thermally more stable, but less bio-compatible than noise-insulation foam.
  • the absorber element 134 and the absorber rear wall 135 absorb the noise before it hits the mass element 131 and the mass rear wall 133 .
  • the mass element 131 rests on supports 64 , which are made of 2 mm of silicone foam, on a housing shell 61 of the post noise absorber 60 .
  • the side parts of the mass element 131 do, therefore, not extend to the bottom side of the noise box housing 20 .
  • the side channel compressor 101 , the pre noise absorber 80 and the post noise absorber 60 are not directly connected to each other, but the side channel compressor 101 is connected to the pre noise absorber 80 by the two tubes 96 and the spacers 95 .
  • the post noise absorber 60 is loosely connected to the pre noise absorber 80 by a tube 71 , by another covered tube and by a spacer 72 . Only if the apparatus is turned over to one side, or in the event of impacts against the apparatus, e.g. during transport, it must be ensured by limit stops that the side channel compressor 101 and the pre noise absorber 80 are not displaced out of their specified position. No problems will arise, however, if the side channel compressor 101 hits against the absorber element 134 and the absorber rear wall 135 .
  • An impact protection 47 which is illustrated in FIGS. 7 and 8 , is provided on the front side.
  • the blocks 85 having a neoprene layer 86 serve as limit stops, for example, if the TNI-apparatus is put down roughly. Normally, however, an air gap having a width of 1-2 mm is provided between the lower edges of the heat sink of the side channel compressor 101 and a neoprene layer 86 so as to avoid a transmission of structure-borne noise.
  • an air gap having a width of 1-2 mm is also provided between the impact protection 65 and the lower side of the pre noise absorber 80 . Also between the upper side of the side channel compressor 101 and the absorber element 134 an air gap having a width of 1-2 mm is normally provided.
  • a seal 63 made of silicone foam having a thickness of 3 mm forms the lower side of the post noise absorber 60 .
  • the seal 63 projects over the housing shell 61 .
  • the projecting parts are folded upwardly to the sides of the housing shell 61 , so that the blow-out openings in the housing shell 61 and in the seal 63 , 69 and 70 are in alignment.
  • the seal 63 is pressed together between the lower side of the noise box housing 20 and the housing shell 61 .
  • FIG. 3 represents an exploded view of the post noise absorber 60 , which is turned upside down.
  • the housing shell 61 comprises a total of 12 screw holes, so that the lower side of the noise box housing 20 is pressed sufficiently uniformly against the housing shell 61 in the mounted condition and the seal 63 can fulfil its function.
  • the two inlet openings 27 and 66 in the noise box housing 20 and in the seal 63 , respectively, are then in alignment.
  • the seal 63 is made of a silicone foam having a thickness of 3 mm. Inside the housing shell 61 one can see a total of seven chambers, whereby the three chambers on the left and the chamber in the middle are referred to as inlet chambers 73 and serve the noise absorption on the inlet side.
  • the three chambers on the right serve the noise absorption on the blow-out side and are referred to as outlet chamber 74 . That is, the air to be administered flows from the inlet opening 66 through four chambers toward the outlet opening 67 , through the pre noise absorber 80 toward the side channel compressor 101 and under a positive airway pressure back to the pre noise absorber 80 and subsequently from an inlet opening 68 to the blow-out opening 69 .
  • each chamber is filled over a possibly large area with a blank of noise-absorbing foam 62 .
  • connections for the outlet opening 67 and the inlet opening 68 are integrated.
  • the blank for the chamber with the blow-out opening 69 is devoid of a corner so as not to seal the blow-out openings 69 .
  • FIG. 4 shows a top view of the housing shell 61 , including the outlet opening 67 , the inlet opening 68 , the supports 64 and the impact protection 65 .
  • FIG. 5 shows an exploded view of the pre noise absorber 80 , which is substantially formed by a lower housing shell 81 and an upper housing shell 84 .
  • the two housing shells 81 and 84 define an inlet chamber 97 and an outlet chamber 98 , which are sealed against the ambience and against each other in a pressure-tight manner by a seal 83 .
  • a blank of noise-absorbing foam 82 is provided in both chambers in the lower housing shell .
  • the air coming from the post noise absorber 60 passes through the inlet 91 into the inlet chamber 97 and flows through the outlet 92 further to the side channel compressor 101 . Coming from the side channel compressor 101 , the delivered air flows through the inlet 93 into the outlet chamber 98 and leaves the same again through the outlet 94 in the direction of the post noise absorber 60 .
  • Air conduction seals 87 - 90 made of noise-absorbing foam as well as blocks 85 having neoprene layers 86 are glued onto the upper housing shell 84 . As was mentioned above, the blocks 85 serve as an impact protection. The air conduction seals 87 - 90 serve to concentrate the forced convection generated by the heat sink unit 40 to the cooling plates.
  • FIG. 6 shows a perspective view of the assembled pre noise absorber 80 .
  • FIG. 7 shows an exploded view of the heat sink unit 40 .
  • the heat sink unit is substantially produced from a machined extruded profile, which forms the outer heat sink 41 .
  • the edge 55 of the thick part of the outer heat sink 41 which connects the cooling ribs, is partially milled off, so as to enter with the milled-off portion 56 into the noise box housing 20 and to be fixed to the same by screws.
  • a sealing groove 51 is sinked, into which a seal 52 is inserted so as to connect the outer heat sink 41 to the noise box housing 20 in a pressure-tight manner.
  • a recess 53 is additionally sinked, which serves as a cable leadthrough.
  • a recess 54 is sinked as well, into which four inner heat sinks 42 are mounted.
  • the inner heat sinks 42 are finger heat sinks.
  • An air conduction sheet 50 is screwed onto the inner heat sinks 42 .
  • two inner blowers 48 and 49 air conduction seals 43 to 46 as well as the impact protection 47 are attached.
  • the air conduction seals 43 to 46 serve to make the inner blowers 48 and 49 aspirate air above all through the cooling ribs of the side channel compressor 101 .
  • the air conduction seals 43 to 46 are made of noise-absorbing foam, thus helping to attenuate noise inside the noise box housing 20 .
  • the edgewise affixed noise-absorbing foam pieces 43 to 46 are mechanically not stable enough to hold the side channel compressor 101 .
  • This is accomplished by the impact protection 47 which is made of a polycarbonate block with a neoprene layer of a thickness of 2 mm.
  • FIG. 8 shows a top view of the inner side of the heat sink unit 40 .
  • TNI-apparatus are usually used to deliver and administer ambient air, other gases can be delivered as well. Also, medicine, e.g. in the form of aerosols, or anesthetic gases may be added to the delivered gas.

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  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Biomedical Technology (AREA)
  • Public Health (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Anesthesiology (AREA)
  • Veterinary Medicine (AREA)
  • Emergency Medicine (AREA)
  • Pulmonology (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Compressor (AREA)
  • Duct Arrangements (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
US12/301,885 2006-05-24 2007-05-03 Conducting unit, and conducting methods Abandoned US20120301267A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102006024839.2 2006-05-24
DE102006024839A DE102006024839A1 (de) 2006-05-24 2006-05-24 Fördereinheit und Förderverfahren
PCT/DE2007/000799 WO2007134565A2 (de) 2006-05-24 2007-05-03 Fördereinheit und förderverfahren

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US20120301267A1 true US20120301267A1 (en) 2012-11-29

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US12/301,885 Abandoned US20120301267A1 (en) 2006-05-24 2007-05-03 Conducting unit, and conducting methods

Country Status (7)

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US (1) US20120301267A1 (de)
EP (1) EP2026863B1 (de)
DE (2) DE102006024839A1 (de)
ES (1) ES2427725T3 (de)
PL (1) PL2026863T3 (de)
PT (1) PT2026863E (de)
WO (1) WO2007134565A2 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150297850A1 (en) * 2012-11-29 2015-10-22 Tni Medical Ag Small, low-noise side channel compressor, in particular for devices in ventilation therapy
US20170049606A1 (en) * 2014-12-05 2017-02-23 Somnics, Inc. Negative pressure generating device and application thereof
US11766530B2 (en) 2018-10-26 2023-09-26 Bmc Medical Co., Ltd. Systems and methods for delivering a respiratory gas
EP4272789A4 (de) * 2020-12-31 2024-04-10 Shenzhen Mindray Animal Medical Tech Co Ltd Anästhesiegerät, veterinärmedizinisches anästhesiegerät und lüfteranordnung
US12017001B2 (en) 2020-12-10 2024-06-25 Bmc Medical Co., Ltd. Systems and methods for delivering a respiratory gas

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WO2007134565A3 (de) 2008-02-21
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EP2026863A2 (de) 2009-02-25
DE112007001727A5 (de) 2009-04-23
PT2026863E (pt) 2013-09-19
PL2026863T3 (pl) 2013-11-29
WO2007134565A2 (de) 2007-11-29

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