EP4204050A1 - Beatmungsvorrichtung mit an einer inneren funktionsanordnung befestigter eingabe/ausgabevorrichtung - Google Patents
Beatmungsvorrichtung mit an einer inneren funktionsanordnung befestigter eingabe/ausgabevorrichtungInfo
- Publication number
- EP4204050A1 EP4204050A1 EP21763387.4A EP21763387A EP4204050A1 EP 4204050 A1 EP4204050 A1 EP 4204050A1 EP 21763387 A EP21763387 A EP 21763387A EP 4204050 A1 EP4204050 A1 EP 4204050A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- input
- locking
- arrangement
- output device
- formation
- 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.)
- Pending
Links
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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
- 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
- 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
-
- 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
- A61M16/024—Control means therefor including calculation means, e.g. using a processor
-
- 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
- A61M2016/0027—Accessories therefor, e.g. sensors, vibrators, negative pressure pressure meter
-
- 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
- A61M2202/00—Special media to be introduced, removed or treated
- A61M2202/02—Gases
- A61M2202/0208—Oxygen
-
- 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
- A61M2205/33—Controlling, regulating or measuring
- A61M2205/3331—Pressure; 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
- A61M2205/33—Controlling, regulating or measuring
- A61M2205/3365—Rotational speed
-
- 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
- A61M2205/50—General characteristics of the apparatus with microprocessors or computers
- A61M2205/502—User interfaces, e.g. screens or keyboards
- A61M2205/505—Touch-screens; Virtual keyboard or keypads; Virtual buttons; Soft keys; Mouse touches
-
- 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
- A61M2205/75—General characteristics of the apparatus with filters
-
- 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
- A61M2205/82—Internal energy supply devices
- A61M2205/8206—Internal energy supply devices battery-operated
-
- 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
- A61M2207/00—Methods of manufacture, assembly or production
Definitions
- the present invention relates to a ventilation device for at least assisting artificial ventilation of patients.
- the ventilation device comprises: a device housing, a functional arrangement accommodated in the device housing in an operating position, which as functional units has at least one section of a breathing gas line, a pressure changing device for changing a breathing gas pressure in the breathing gas line and a control device for controlling the operation of at least the pressure changing device, and one on the device housing Input/output device arranged in an arrangement position, accessible from outside the device housing for its operation, for inputting data and/or control commands to the control device and/or for outputting data and information, the input/output device passing through an opening in the device housing is connected in terms of signal transmission to the control device.
- the ventilator is an emergency ventilator as used by emergency physicians and first responders in emergency situations.
- Emergency ventilators also known as "intensive care ventilators" are used to supply a patient with breathing gas quickly outside of a clinical environment, for example at the scene of an accident and/or while a patient is being transported.
- emergency ventilators can also be used in a clinical setting, but more powerful ventilators than emergency ventilators are often available in hospitals.
- emergency ventilators like the present ventilator device, preferably have their own energy store, which enables the emergency ventilator to be operated independently of a mains supply, at least for a certain period of time.
- emergency ventilators are designed as portable ventilators in terms of their size and weight, so that they can be moved by an emergency physician, such as an emergency doctor called to the scene of an accident, using only their own muscle power, even over distances of several tens of meters without excessive physical strain be able.
- emergency ventilators have a blower as a preferred pressure-changing device
- these emergency ventilators can administer at least ambient air as breathing gas without additional special gas supplies, such as a detachably coupled oxygen supply.
- additional special gas supplies such as a detachably coupled oxygen supply.
- a special gas that is different from the ambient air in the most common case pure oxygen, but also anesthetic and/or therapeutic gases and gas mixtures, can be added to the ambient air.
- emergency respirators like those of the present invention, usually have a connection formation for connecting a special gas supply.
- the functional arrangement In order to protect the functional arrangement from external influences, such as mechanical shocks, dirt and the like, it is arranged in the device housing.
- the input/output device can operate the ventilation device and perceive information about an operating state of the ventilation device and/or a ventilation state of a Device allows patients to be ventilated, this is arranged on the device housing in such a way that it is accessible to an operator from outside the device housing.
- the connection of the input/output device and the control device for signal transmission means that signals and thus data and information can be transmitted between these devices.
- this object is achieved with a ventilation device as mentioned at the outset in that the input/output device is secured directly on the functional arrangement against removal of the input/output device from its arrangement position in a lifting direction away from the device housing.
- a cumbersome assembly of both the input/output device and the functional arrangement on the device housing can be omitted. It can then be sufficient to connect only one arrangement of functional arrangement and input/output device to the device housing. The respective other arrangement is then held by one arrangement.
- the input/output device can be considered to also secure the input/output device on the device housing against removal in the lifting direction, for example by grasping behind an edge of an opening in the device housing with a formation firmly connected to the input/output device, such as a hook.
- a preferred development of the invention provides that the input/output device is only secured on the functional arrangement against removal from its arrangement position in the lifting direction away from the device housing.
- the input/output device can pass through an opening in the device housing so that the input/output device is accessible from the outside for operating the ventilation device and the input/output device with the control device is accessible for signal transmission connected is.
- the input/output device is positioned against a section of the input/output device and a section of the functional arrangement on the functional arrangement with the interposition of a section of the device housing removed from its mounting position in a lifting direction away from the device body. Then not only is the input/output device secured in position on the functional arrangement, but also the input/output device and the functional arrangement can each be fixed relative to the device housing.
- the input/output device may externally overlap the portion of the device body interposed between the input/output device and the functional assembly.
- the intermediately arranged section of the device housing which as a rule comprises the edge of the opening of the device housing through which the input/output device passes, is thus securely covered.
- a sealing effect achieved by the input/output device at the intermediately arranged portion of the device housing can be further increased by the fact that the input/output device on the functional arrangement is too tight towards the device housing. In this way, a clamping effect can also be achieved, with which the device housing is clamped between the input/output device and the functional arrangement.
- the input/output device, the functional arrangement and the device housing can be formed as a play-free assembly only by attaching the input/output device directly to the functional arrangement.
- the input/output device can be secured to the functional arrangement against removal from its arrangement position in the lifting direction away from the device housing by means of a fastener designed separately from the input/output device and the functional arrangement, such as at least one screw and/or at least one clip be secured.
- a fastener designed separately from the input/output device and the functional arrangement, such as at least one screw and/or at least one clip be secured.
- the input/output device be replaced by a locking formation embodied or arranged on the input/output device and a locking counter-formation embodied or arranged on the functional arrangement on the Functional arrangement is secured against removal from its arrangement position in the lifting direction away from the device housing.
- the two formations: locking formation and locking counter-formation are then advantageously provided in a captive manner on the arrangements carrying them: input/output device and functional arrangement.
- the locking formation When the ventilation device is ready for operation, the locking formation is in a positive locking engagement with the locking counter-formation, which prevents the input/output device from being removed from its arrangement position in the lifting direction away from the device housing.
- At least one formation of locking formation and locking counter-formation can be moved at least once from a release position along a movement path transverse to the lifting direction into a locking position. In the release position there is no positive locking engagement between the locking formation and the locking counter-formation.
- the then unlocked input/output device is then removable from its mounting position in the lift-off direction away from the device body. In contrast to this, the locking form-fitting engagement is established in the locking position.
- the locking positive-locking engagement produced in the locking position can support particularly high forces in the lifting direction without the locking positive-locking engagement being released again as a result could.
- the path of movement of the at least one movable formation made up of locking formation and locking counter-formation is therefore preferably oriented orthogonally to the lifting direction. This is because a force acting along the direction of lift has no force component running orthogonally to the direction of lift.
- the form-fit locking engagement between the locking formation and the counter-locking formation can be secured by a friction fit between a contact surface of the locking formation and a counter-contact surface of the counter-locking formation lying against the contact surface when the locking form-fitting engagement is established.
- the frictional connection can prevent the at least one movable formation from automatically moving back from the locking position in the direction of the release position or being moved in the direction of the release position by forces occurring during operation and when handling the ventilation device.
- the formation of locking formation and locking counter-formation that can be moved along the movement path in the locking position can be secured against movement out of the locking position by a securing means optionally arranged at a distance from the surfaces of contact surface and counter-contact surface that abut one another .
- the securing means can be a latching arrangement which includes a latching lug and a latching recess and/or a latching edge.
- a locking formation consisting of a locking lug on the one hand and a locking recess and/or locking edge on the other hand can be arranged resiliently in the direction of a locking engagement, so that a locking engagement can take place automatically when a predetermined spatial relative arrangement of the locking lug on the one hand and locking recess and/or locking edge on the other hand is reached.
- At least one of the latching formations is therefore preferably biased into its latching engagement position. In the latching engagement position, the latching lug dips into the latching recess and/or engages behind the latching edge.
- the latching edge can be an edge delimiting the latching recess, so that both the latching recess and the latching edge can be formed on one and the same latching formation.
- the at least one movable formation consisting of a locking formation and a locking counter-formation can be Opening in the device housing, be movable from the release position to the locked position by manual intervention.
- the ventilation device preferably comprises a drive means, by means of which the movable formation can be moved from the released position into the locked position.
- the drive means can be a pulling and/or pushing means, which is connected to the movable formation for force and motion transmission.
- the pulling and/or pushing means is preferably connected in one piece to the movable formation, for example as an injection-molded component or as a component that is otherwise produced by primary shaping.
- the driving means may be a finger or hand attack formation, such as a finger ring or drawbar.
- the drive means can comprise a self-locking screw drive. Due to the self-locking design of the screw drive, which can be realized by a suitable choice of the thread pitch, the screw drive can not only be the drive means, but also the securing means, which keeps the formation of locking formation and locking counter-formation movable along the movement path in the locking position against movement into the release position secures. Then both driving and positional securing of the at least one movable formation can be achieved by a single device, which reduces the number of components required to form the respiratory device.
- the screw drive can have a threaded rod and a moving part that can be moved relative to the threaded rod by rotating the threaded rod about its rod longitudinal axis and is in screwed engagement with the threaded rod.
- the moving part can be a movable nut, movable toothed rack or movable toothed wheel, with the nut, toothed rack or toothed wheel engaging in the thread of the threaded rod with its teeth.
- the threaded rod may, although less preferably, be an internally threaded hollow threaded rod, rotation of which causes a threading engagement with the hollow threaded rod stationary threaded rod with external thread can be displaced along the common screw axis.
- the threaded rod which can be actuated for rotation about its longitudinal rod axis, preferably has an external thread.
- the moving part is coupled to the at least one formation of locking formation and locking counter-formation movable along the movement path for joint movement.
- the threaded rod is generally mounted on a component of the ventilation device such that it can rotate about its rod longitudinal axis and has only this rotational degree of freedom with respect to this component.
- the formation of locking formation and locking counter-formation that is movable along the movement path can be moved from the release position into the locking position only once during manufacture of the ventilation device.
- the formation movable along the movement path can be moved reversibly between the released position and the locked position. Then the locking form-fitting engagement can be released and re-established.
- the input/output device may be locked or unlocked in its mounting position on the device housing depending on whether the locking positive engagement is established or not.
- the drive means in particular in its preferred embodiment as a self-locking screw drive, preferably has an actuating formation, by means of which drive force, in particular as a drive torque, can be introduced into the drive means.
- drive force in particular as a drive torque
- this can be a rotatable body through which a torque can be introduced into the threaded rod by hand or by using a tool.
- the actuation formation of a screw drive can be a knurled cylinder, a wing head known from a wing screw, or generally a rotationally symmetrical body.
- the actuation formation of the lead screw can be a known one Have tool engagement formation such as a male or female hex profile, a Phillips, a plain slot, and the like.
- the actuation formation of the drive means can be at least in the release position, preferably both in the release position and in the locking position, the formation of locking formation and locking counter-formation movable by the drive means along the movement path can be arranged in the interior of the device housing.
- the entire drive means is preferably arranged inside the device housing at least in the release position, preferably also in the locking position.
- the drive means can be arranged with advantageously short force transmission paths close to the at least one movable formation, since when the locking positive engagement is established, both formations of locking formation and locking counter-formation are preferably located inside the device housing.
- the at least one actuation formation of the drive means is preferably through a different opening in the device housing is accessible for actuation than through that opening through which the input/output device is communicatively connected to the control device.
- the device housing preferably has a prismatic shape with a housing jacket wall running around the prism axis at a radial distance from a prism axis as a housing component of the device housing.
- the device housing also has at least one axially end opening, based on the prism axis. Depending on the design of the prismatic device housing, this can have only one axial end opening, for example if the device housing is pot-shaped with an end wall extending orthogonally to the prism axis at one axial longitudinal end.
- the prismatic device housing can have a housing casing wall that is axially open on both sides and then have two axial end openings, one at each axial longitudinal end.
- This at least one axial end opening can be closed quickly and securely by a cover in a simple manner and forms a relatively large opening area in the unlocked state, which facilitates assembly of the functional arrangement or individual functional units inside the device housing.
- At least the actuation formation of the drive means, preferably the entire drive means, is therefore preferably accessible through an axial end opening of the at least one axial end opening for the actuation of the drive means.
- the housing component having the housing jacket wall is preferably a tubular housing component, the tube axis of which is the prism axis.
- the tubular housing component is preferably made of a light metal such as an aluminum or magnesium alloy, can additionally or alternatively also be made of a copper alloy, such as brass or bronze, or also of a copper-containing alloy.
- the tubular housing component can be made of plastic, in particular of thermoplastic material.
- the plastic can be filled with particles which increase the thermal conductivity of the mixture compared to the unfilled plastic matrix.
- a filling material is, for example, boron nitride.
- tubular housing component is preferably manufactured without joints, for example as an extruded component or as an extruded component.
- the prismatic housing has the input/output device in the area of its casing wall, preferably only in the area of its casing wall.
- the input/output device can be arranged on the device housing without play and even sealed against the ingress of liquid if at least one surface, preferably both surfaces, consists of a contact surface of the locking formation and a positive locking engagement on the contact surface when the locking is established mating counter-contact surface of the locking counter-formation are inclined to the movement path in such a way that during a movement of the at least one movable formation of locking formation and locking counter-formation from the release position into the locking position for producing the positive locking engagement through a sliding contact engagement between the contact surface and counter-contact surface, a force acts on the input/output device is exerted towards the device housing.
- At least one surface of the contact surface and counter contact surface are preferably inclined both to the movement path and to the lifting direction, with the angle of inclination relative to the lifting direction being significantly greater than relative to the movement path, in order to generate a high force through relative movement of the contact surface and counter contact surface along the movement path between these surfaces parallel to the lift-off direction.
- the self-locking screw drive mentioned above allows the necessary high displacement forces of the contact surface and counter-contact surface to be easily applied along the movement path in order to achieve high clamping forces acting on the input/output device parallel to the lifting direction.
- both the locking formation and the locking counter-formation are arranged to be movable towards and away from one another along the movement path, it is structurally advantageous and allows a more stable design of the locking of the input/output device on the device housing if only one formation of locking formation and locking counter-formation is movable between the release position and the locking position. This is preferably the locking counter-formation, so that only this can then be moved between the release position and the locking position.
- the functional arrangement can be inserted into its operating position in the device housing by an insertion movement along an insertion path during assembly of the ventilation device.
- the insertion path runs at least in the region of an end axial opening through which the functional arrangement is preferably inserted into the device housing, at least tangentially, preferably collinearly, to the prism axis.
- the entire insertion path is parallel or collinear with the prism axis.
- the input/output device is displaceable to its mounting position by mounting movement along a mounting path.
- the lifting direction usually runs parallel to the arrangement path.
- One arrangement of the input/output device and the functional arrangement preferably has a plug of a connecting line that transmits signals and/or energy
- the other arrangement of the input/output device and the functional arrangement has a socket of the connecting line that transmits signals and/or energy
- the plug and the socket are connected rigidly and facing each other along the insertion path or the arrangement path with the arrangement they each have, that a temporal sequence of an assembly movement consisting of an insertion movement and an arrangement movement and the respective other assembly movement consisting of an insertion movement and an arrangement movement results in a functional connection of the plug effected with the socket.
- the input/output device preferably comprises at least one display device, such as a monitor, in order to output data and information in a manner perceptible to an operator.
- the display device preferably includes a touchscreen, so that it can also be used to enter data and information. Additionally or alternatively, the display device can have lighting means, which can either be lit or not lit and output information depending on their state of illumination.
- the input/output device can have at least one switch, such as at least one pushbutton switch and/or at least one rotary switch, as input means for inputting data and information.
- all input means such as switches, touch screen, etc., of the ventilation device are preferably arranged on the input/output device.
- all output means such as monitor, lighting means, loudspeakers, etc., of the ventilation device are arranged on the input/output device.
- the functional arrangement can be formed from a number of separate functional units.
- the functional arrangement includes a preassembled assembly made up of at least the section of a breathing gas line, the pressure-changing device and the control device, which can be inserted into and/or removed from the device housing as a preassembled assembly.
- the pre-assembled assembly can include further functional units, such as an active or passive cooling device for dissipating heat from the pressure-changing device and/or a receptacle for an energy store and/or the energy store itself.
- the functional arrangement as a pre-assembled assembly can also be supplemented by individual separate functional units, that are not part of the pre-assembled assembly.
- the functional arrangement preferably includes all functional units of the ventilation device as a preassembled assembly, with the exception of the input/output device.
- a further exception can be an electrical energy store, which can be accommodated in an exchangeable accommodation space, such as a shaft.
- the functional arrangement, as part of the preassembled assembly can preferably have the accommodation space for accommodating an electrical energy store.
- the electrical energy store such as a battery or a rechargeable accumulator, can even be detachably accommodated in the accommodation space when the ventilation device is assembled.
- an electrical energy store can be installed pre-assembled in the functional arrangement. The energy store can then also be part of the preassembled assembly of the functional arrangement.
- a filter for cleaning breathing gas can also be part of the functional arrangement. Since the filter generally becomes soiled as the operation of the ventilation device continues and loses cleaning performance and/or volume throughput capacity, it is preferably provided on the functional arrangement so that it can be replaced.
- the pre-assembled assembly preferably includes an accommodation volume for detachably accommodating a filter, in particular a filter cartridge.
- a filter cartridge is a vessel through which gas can flow, with a filter body accommodated therein in the flow path from the gas inlet to the gas outlet of the vessel. The filter can thus be handled without having to touch the filter body as the carrier of the filter and cleaning function.
- the functional arrangement has all the functional units of the ventilation device as pre-assembled ones lies in the simple maintenance of the functional units. These can be uncovered and made accessible as a preassembled module after releasing the form-fit locking engagement in a few simple steps, particularly preferably in a single work step, by pulling them out of the device housing, in particular from the prismatic or tubular housing component.
- the functional arrangement can be a power supply, at least one mixing valve for mixing air and at least one special gas, a cooling device for dissipating heat from the area surrounding the blower, the above-mentioned drive means and the above-mentioned securing means and the like.
- the cooling device can be an active cooling device, such as a cooling fan, but is preferably a passive cooling device, such as a heat conducting body made of a material with good thermal conductivity, such as metal, in particular aluminum or copper or alloys containing these metals, to reduce the energy consumption of the ventilation device.
- a heat transfer surface of the passive cooling device can be clamped with a clamping device against a contact surface of the device housing provided for this purpose.
- the tightening device can comprise one or more screws.
- the device housing in particular the prismatic or tubular housing component, is preferably a purely passive component and forms a shell around the functional assembly and a support for the input/output device.
- All operationally necessary connections such as sockets, gas line couplings, electrical connection lines, gas inlet openings and gas outlet openings, are preferably also provided on the functional arrangement ready for operation.
- a final check of the functional units to ensure that they are functioning correctly can then be carried out particularly advantageously before the final assembly of the ventilation device, which considerably reduces the effort required to eliminate errors.
- the pressure changing device preferably comprises a blower. It can additionally or alternatively comprise at least one valve.
- the operation of the blower and/or the valve can be controlled by the control device, ie it can at least be switched on and off.
- the operating power of the blower can preferably be changed by the control device.
- the at least one valve can likewise preferably be actuated by the control device with a stepwise or steplessly variable opening cross section.
- the input/output device is preferably secured directly by the locking form-fitting engagement on the functional arrangement, with a section of the device housing generally being located between a section of the functional arrangement on the one hand and a section of the input/output device on the other hand, so that the input/output device can be locked by the locking - Form-fitting engagement with the functional arrangement can be clamped with force against the device housing.
- This design not only requires a small number of components overall, but also prevents incorrect assembly and the need for disassembly and reassembly as a result. This is because the input/output device can only be locked in the arrangement position on the device housing when the functional arrangement is correctly in its operating position, in which the production of the locking positive-locking engagement is possible.
- the positive locking engagement not only secures the input/output device against removal from the device housing in the lifting direction, but also secures the functional arrangement against removal from the device housing along the insertion path in a direction opposite to the insertion movement.
- the functional arrangement only reaches its operating position by producing the locking form-fitting engagement.
- the positive locking engagement can only be effectively established when the functional arrangement is in its operating position and the input/output device is in its arrangement position.
- the functional arrangement preferably has a cover as a component of the preassembled assembly , which, when the functional arrangement is fully inserted into the operating position, covers an axial end opening of the at least one axial end opening of the device housing.
- the The cover preferably has at least one connection required for operation, preferably a plurality of connections required for operation, such as sockets and/or gas line couplings and/or electrical connection lines and/or a gas inlet opening and/or a gas outlet openings.
- an axial end opening is available as an assembly opening, which is easily closed by the cover of the preassembled functional arrangement when the functional arrangement is arranged in the operating position.
- the cover thus also serves to visually check the arrangement of the functional arrangement in its operating position inside the device housing by viewing the device housing from the outside.
- the device housing has the above-mentioned prismatic or tubular housing wall open on both sides at the longitudinal end and, in addition to the cover of the preassembled assembly of the functional arrangement, a second cover as a housing component, the second cover being separate from the functional arrangement on the housing wall as a housing component of the device housing for closing a the longitudinal ends can be attached and preferably removed again, this second cover preferably has access passages passing through it, through which at least one connection required for operation, such as a socket and/or a gas line coupling and/or an electrical connection line and/or and - particularly preferably - a gas inlet opening and/or a gas outlet opening is accessible.
- connection required for operation such as a socket and/or a gas line coupling and/or an electrical connection line and/or and - particularly preferably - a gas inlet opening and/or a gas outlet opening is accessible.
- FIG. 1 shows a perspective view of a ventilation device according to the invention in a preferred embodiment as an emergency ventilation device
- FIG. 2 shows a perspective exploded view of a prismatic housing component and the functional arrangement of the emergency ventilator according to the invention from FIG.
- FIG. 3 shows a perspective exploded view of the functional arrangement and the input/output device of the emergency ventilator according to the invention from FIG.
- Figure 4 The functional assembly and input/output device of Figure 3 with locking positive engagement established
- FIG. 5 shows a plan view of the end face of the emergency ventilator of FIG. 1 which faces away from the viewer in FIG.
- an embodiment according to the invention of a ventilation device according to the invention is designated generally by 10 in a preferred embodiment as an emergency ventilation device.
- the emergency respirator 10 includes a device housing 12 with a prismatic basic shape, in the present case with a cuboid basic shape with rounded edges.
- the housing jacket wall 14 of the device housing 12 comprises four flat surface portions 14a, 14b, 14c and 14d (only the upper and the front flat surface portion 14a and 14d can be seen in Fig. 1, otherwise see Fig. 2), of which each in the circumferential direction about the prism axis P successive flat surface portions 14a, 14b, 14c and 14d are oriented orthogonally to one another. All flat surface portions 14a, 14b, 14c and 14d are parallel to the axis P of the prism.
- the flat surface portions 14a, 14b, 14c and 14d are defined by curved, preferably quarter-cylindrical, surface portions 16a, 16b, 16c and 16d (only the front upper and front lower curved surface portions 16a and 16d can be seen in Fig. 1, see otherwise Fig. 2) connected to each other preferably free of joints.
- the individual cylinder axes of the quarter-cylindrical and thus the curved surface portions 16a, 16b, 16c and 16d are parallel to the prism axis P.
- the housing Shell wall 14 is formed by an extruded aluminum tube 15 as a component of the device body 12.
- the device housing 12 comprises a housing cover 22 which can be detached from the rest of the device housing 20 along the prism axis P and arranged on the rest of the device housing 20.
- the housing cover 22 thus serves to close a housing opening 24 (see Fig. 2), which is formed on the longitudinal end 14e of the housing casing wall 14 that is closer to the viewer of FIG.
- the housing opening 24 is delimited by the housing jacket wall 14 of the rest of the housing 20 .
- a filter compartment 26 see FIG. 2) for an air filter cartridge 28 with an air filter
- a battery compartment 30 for a rechargeable electric accumulator a grid-independent energy storage accessible.
- the housing cover 22 has a cover component 32 and a closure component 34 .
- the closure component 34 is mounted rotatably about the closure axis V on the cover component 32 .
- the closure axis V runs coaxially with the prism axis P in the closed state, i.e. when the housing cover 22 is arranged on the remainder of the housing 20 and the housing opening 24 is closed.
- the housing cover 22 also has an ambient air intake opening 36 which penetrates both the cover component 32 and the closure component 34 . Ambient air can be sucked in from the surroundings U through the air filter cartridge 28 and into a fan space in the housing 12 through the ambient air suction opening 36 by a blower as a pressure-changing device.
- the closure component 34 is shown in FIG. 1 in its closed position, from which it can be rotated counterclockwise by approximately one twelfth of a turn about the closure axis V into an open position marked by a symbol in the form of an open padlock.
- the ambient air intake opening 36 is radially outwardly limited--relative to the locking axis V--directly by a bearing section 38 of the cover component 32.
- the bearing section 38 has a fastening formation 38a in the form of an internal thread.
- An additional air filter for example, which fulfills filter functions that the air filter of the air filter cartridge 28 does not perform, can be arranged on this fastening formation 38a.
- a measuring device can be arranged on the fastening formation 38a, which metrologically detects the ambient air flowing through the ambient air intake opening 36, for example determining its chemical composition or determining whether and, if necessary, to what extent the ambient air sucked in contains a predetermined component or not.
- the emergency ventilator 10 has an input/output device 40 which is arranged in an arrangement position and which enables the exchange of information between the operator and the emergency department ventilator 10 and which serves to control the emergency ventilator 10 by the operator.
- the input/output device 40 has a monitor 42 as an output device, which is preferably a touchscreen that allows information to be input in a touch-sensitive manner.
- the input/output device 40 also has display LEDs 44 as a further output device, for example for displaying the state of charge of the electrical accumulator of the emergency ventilator 10, and has, for example, a pushbutton switch 46 and a rotary switch 48 as input means.
- the input/output device 40 is surrounded by a plastic frame 50, for example made of thermoplastic material.
- a plastic frame 50 for example made of thermoplastic material.
- an elastomeric seal which runs all the way around with the frame 50 and bears in a sealing manner both on the frame 50 , preferably in a receiving groove there, and on the casing wall 14 of the housing.
- the device cover 22 is surrounded by a shock-absorbing elastomer ring 52 that runs completely around the prism axis P in the direction of rotation.
- the elastomer ring 52 In the closed state, the elastomer ring 52 also covers part of the housing jacket wall 14 and the end face 18, so that the elastomer ring 52 in the area of the device cover 22 protects the emergency respirator 10 against both axial and radial shock loads.
- a device cover 54 is also arranged on the longitudinal end 14f of the housing casing wall 14 opposite the device cover 22 .
- the device cover 54 is preferably not removable by itself from the housing casing wall 14 of the housing 12.
- a completely closed elastomer ring 56 is also provided on this longitudinal end, which runs around the prism axis P in the circumferential direction and covers both a part of the housing jacket wall 14 and a part of the end face 19.
- the end face 19 is opposite to the end face 18 with respect to the axis P of the prism.
- the input/output device 40 can be removed from the device housing 12 along an arrangement path AB in a lifting direction A from the arrangement position shown in FIG.
- FIG. 2 shows the prismatic aluminum tube 15 as a component of the device housing 12 and a functional arrangement 60 arranged in the operational state inside the device housing 12 in an exploded view.
- the casing wall 14 On its side facing the observer of FIG. 2, the casing wall 14 has a large opening 14g, through which a control device 62 of the functional arrangement 60 can be connected to the input/output device 40 in terms of signal transmission.
- the functional assembly 60 is along an insertion path E, which is collinear with the prism axis P, through an axial end opening 25 at the longitudinal end 14f of the Housing jacket wall 14 and the aluminum tube 15 in the aluminum tube 15 as part of the device housing 12 can be inserted.
- the functional arrangement 60 comprises the above-mentioned control device 62 on its side pointing upwards in FIG.
- the control device 62 is arranged in the functional arrangement 60 in a structurally separate manner from breathing gas lines carrying inspiratory breathing gas, including pure oxygen as an optional special gas.
- breathing gas lines carrying inspiratory breathing gas including pure oxygen as an optional special gas.
- the heating of electrical and electronic components of the control device 62 or an undesired spark that forms can have an ignition effect, which is why the pressure-changing device in the form of a blower and the breathing gas lines in which the breathing gas conveyed by the pressure-changing device flows, are structurally strictly separated from the control device 62 .
- the pressure changing device and the breathing gas lines are therefore not visible in FIG.
- the cover 54 is also part of the functional arrangement 60 which is preassembled as an assembly and which can be inserted as an assembly along the insertion path E into the aluminum tube 15 in a single assembly step.
- An engagement formation 63 that protrudes along the insertion path E from an end plate 61 of the functional arrangement 60 is used to arrange the cover 22, in particular the closure component 34, on the rest of the device housing 20 when the functional arrangement 60 is in its operating position inside the device housing 12.
- Two card edge connectors 64 protrude from the controller 62 parallel to the assembly line AB. They serve to establish a signal transmission connection between the control device 62 and the input/output device 40 directly solely by arranging the functional arrangement 60 in its operating position and by arranging the input/output device 40 in its arrangement position.
- the locking counter-formation 66 comprises six locking wedges 66a, 66b, 66c, 66d, 66e and 66f, three of which are arranged on the upper side and three on the underside. All locking wedges together form the locking counter-formation 66.
- the carrier 65 is movable along the movement path B relative to the end plate 61 and to the other immovable functional units of the functional arrangement.
- the carrier 65 which is designed, for example, as a plastic injection-molded component, can be displaced along the movement path B by means of a screw drive 68.
- a screw drive 68 In FIG. 3, the actuation formation 72 with a Phillips tool engagement formation of a screw or threaded rod of the screw drive 68 to the right of the filter receiving compartment 26 is shown. Since the screw drive 68 is self-locking, a movement of the carrier 65 can only be effected via the actuating formation 72, but no movement of the actuating formation 72 by movement of the carrier 65.
- the screw drive 68 therefore also acts as a securing means for securing the position of the carrier 65 and thus the locking counter-formation 66 in the position reached in each case by actuating the actuating formation 72.
- the input/output device 40 is shown obliquely from above and behind, so that the rear side of the input/output device 40 can mainly be seen.
- the input/output device 40 includes electronic components for operating the monitor 42, the additional display device 44 and the switches 46 and 48.
- the input/output device 40 also includes on its rear side two connecting sockets 74 that protrude parallel to the arrangement path AB and counter to the lifting direction, into which the circuit board connectors 64 are inserted when the functional arrangement 60 is in its operating position and the input/output device 40 is brought closer to the housing casing wall 14 counter to the lifting direction A.
- the input/output device 40 preferably integrally formed on its frame 50, presents a locking formation 76 which is complementary tär to the locking counter-formation 66 of the functional arrangement 60 is formed.
- the locking formation 76 has a total of six engagement recesses 76a, 76b, 76c, 76d, 76e and 76f, into which the locking wedges 66a, 66b, 66c, 66d, 66e and 66f engage to produce a locking form-fitting engagement.
- the locking formation 76 is not movable relative to the device carrying it, here: input/output device 40, but is arranged rigidly on the frame 50 of the input/output device 40.
- the input/output device 40 can be brought into its arrangement position counter to the lifting direction A, the locking wedges 66a, 66b, 66c, 66d, 66e and 66f already engage in the engagement recesses 76a, 76b, 76c, 76d, 76e and 76f, but without yet producing a positive locking engagement preventing the input/output device 40 from being lifted in the lifting direction A. This is only brought about by movement of the locking counter-formation 66 along the movement path B in the direction away from the cover 54 into the locking position.
- each engagement recess 76a, 76b, 76c, 76d, 76e and 76f has one contact surface each, the contact surfaces preferably being identical.
- the contact surfaces preferably being identical are provided with reference symbols in FIG.
- each locking wedge 66a, 66b, 66c, 66d, 66e and 66f has a counter-abutment surface, with the counter-abutment surfaces preferably being identical.
- the upper mating surfaces 66a1, 66b1 and 66c1 are provided with reference numerals.
- the contact surfaces and counter-contact surfaces are slightly inclined with respect to the movement path B, so that they are slightly inclined with respect to the lifting direction A from a reference plane that is orthogonal to the lifting direction A.
- the inclination is such that when the locking counter-formation 66 is displaced along the movement path from the release position to the locking position, a force acting opposite to the lifting direction is exerted by the inclined counter-abutment surfaces on the abutment surfaces and thus on the input/output device 40.
- the input/output device 40 can thus be clamped by the locking counter-formation 66 towards the housing casing wall 14 by producing the locking form-fitting engagement.
- FIG. 4 functional assembly 60 and input/output device 40 are shown in the same perspective as Figure 3, with input/output device 40 in its assembly position and locking counter-formation 66 placed in its locking position.
- the input/output device 40 is connected to the control device 62 in terms of signal transmission by inserting the circuit board plugs 64 into the sockets 74 and by establishing the locking positive-locking engagement between the locking formation 76 and the locking counter-formation 66 against removal in the lifting direction A from the functional arrangement 60 and secured by the housing jacket wall 14, not shown in FIG.
- the screw drive 68 holds the locking counter-formation 66 in the locking position shown in FIG.
- FIG. 5 shows a view of the end face 19 of the emergency ventilator 10 .
- FIG. 5 shows a respiratory gas discharge opening 78 through which inspiratory respiratory gas conveyed by the fan of the pressure-changing device emerges from the device housing 12 to a patient connected to the emergency ventilator 10 .
- the respiratory gas discharge opening 78 forms one end of a respiratory gas line of the functional arrangement 60.
- a delivery device for supplying a gas that differs from the air sucked in by the blower as respiratory gas as inspiratory respiratory gas or as a component thereof can be introduced into the respiratory gas line at a special gas coupling section 79.
- Figure 5 also shows connection pieces 80a and 80b, to which pressure detection hoses can be connected, which at their other end remote from the connection pieces 80a or 80b are each connected to an inner region of a differential pressure flow sensor for measuring a proximal inspiratory and preferably also an expiratory respiratory gas flow.
- the two inner areas of the differential pressure flow sensor are separated from one another in a manner known per se by a flow resistance that can be changed by the respiratory gas flow.
- the emergency ventilator 10 can be operated via a mains input 82 if a mains connection is available with energy from an external power supply network, such as from a public power supply network or from the on-board power supply network of a vehicle or aircraft. All electrical functional units of the emergency ventilator 10 can then be supplied with mains energy, with the mains voltage being transformed to a low-voltage direct current via a power pack as a further functional unit of the preassembled functional arrangement 60 . Likewise, the accumulator, not shown, can be charged.
- a socket 84 in the housing 12 is arranged for connecting an external sensor, in particular a CO2 sensor. Such a CO2 sensor can be provided, for example, on a flow sensor coupled to the emergency ventilation device 10 and coupled to form a sensor arrangement.
Landscapes
- Health & Medical Sciences (AREA)
- Emergency Medicine (AREA)
- Pulmonology (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102020122672.1A DE102020122672A1 (de) | 2020-08-31 | 2020-08-31 | Beatmungsvorrichtung mit an einer inneren Funktionsanordnung befestigter Eingabe/Ausgabevorrichtung |
PCT/EP2021/073687 WO2022043472A1 (de) | 2020-08-31 | 2021-08-26 | Beatmungsvorrichtung mit an einer inneren funktionsanordnung befestigter eingabe/ausgabevorrichtung |
Publications (1)
Publication Number | Publication Date |
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EP4204050A1 true EP4204050A1 (de) | 2023-07-05 |
Family
ID=77595579
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP21763387.4A Pending EP4204050A1 (de) | 2020-08-31 | 2021-08-26 | Beatmungsvorrichtung mit an einer inneren funktionsanordnung befestigter eingabe/ausgabevorrichtung |
Country Status (4)
Country | Link |
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US (1) | US20230310769A1 (de) |
EP (1) | EP4204050A1 (de) |
DE (1) | DE102020122672A1 (de) |
WO (1) | WO2022043472A1 (de) |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU2004263115B2 (en) * | 2003-08-04 | 2010-06-10 | Carefusion 203, Inc. | Portable ventilator system |
EP2817518B1 (de) * | 2012-02-02 | 2020-05-20 | imtmedical ag | Schalldämmendes gehäuse für ein beatmungsgerät |
DE202014007024U1 (de) * | 2014-03-28 | 2014-11-12 | Weinmann Geräte für Medizin GmbH + Co. KG | Vorrichtung zur Beatmung |
DE102018008493A1 (de) * | 2018-10-30 | 2020-04-30 | Drägerwerk AG & Co. KGaA | Transfereinheit, Beatmungsvorrichtung, Beatmungssystem sowie Verfahren zum Wechsel einer für einen Beatmungsvorgang eines Patienten verwendeten Beatmungsvorrichtung |
-
2020
- 2020-08-31 DE DE102020122672.1A patent/DE102020122672A1/de active Pending
-
2021
- 2021-08-26 US US18/021,139 patent/US20230310769A1/en active Pending
- 2021-08-26 EP EP21763387.4A patent/EP4204050A1/de active Pending
- 2021-08-26 WO PCT/EP2021/073687 patent/WO2022043472A1/de unknown
Also Published As
Publication number | Publication date |
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WO2022043472A1 (de) | 2022-03-03 |
DE102020122672A1 (de) | 2022-03-03 |
US20230310769A1 (en) | 2023-10-05 |
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