[go: up one dir, main page]

WO2024180068A1 - Ensemble, de préférence pneumotachographe, spiromètre et/ou entraîneur respiratoire, et procédé - Google Patents

Ensemble, de préférence pneumotachographe, spiromètre et/ou entraîneur respiratoire, et procédé Download PDF

Info

Publication number
WO2024180068A1
WO2024180068A1 PCT/EP2024/054963 EP2024054963W WO2024180068A1 WO 2024180068 A1 WO2024180068 A1 WO 2024180068A1 EP 2024054963 W EP2024054963 W EP 2024054963W WO 2024180068 A1 WO2024180068 A1 WO 2024180068A1
Authority
WO
WIPO (PCT)
Prior art keywords
housing part
pressure
arrangement according
passage
arrangement
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.)
Ceased
Application number
PCT/EP2024/054963
Other languages
German (de)
English (en)
Inventor
Florian Kopf
Florian Ebner
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of WO2024180068A1 publication Critical patent/WO2024180068A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/08—Measuring devices for evaluating the respiratory organs
    • A61B5/087—Measuring breath flow
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/08—Measuring devices for evaluating the respiratory organs
    • A61B5/097—Devices for facilitating collection of breath or for directing breath into or through measuring devices
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6887—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient mounted on external non-worn devices, e.g. non-medical devices
    • A61B5/6898—Portable consumer electronic devices, e.g. music players, telephones, tablet computers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2560/00—Constructional details of operational features of apparatus; Accessories for medical measuring apparatus
    • A61B2560/04—Constructional details of apparatus
    • A61B2560/0443—Modular apparatus

Definitions

  • the invention relates to an arrangement, preferably a pneumotachograph, spirometer and/or breathing trainer according to claim 1. Furthermore, the invention relates to a method according to claim 36 and an arrangement, preferably a pneumotachograph, spirometer and/or breathing trainer according to claim 41.
  • An acoustic spirometer is known from WO 2012/038903 A2.
  • the spirometer has a smartphone and a mouthpiece element that is plugged into a charging socket of the smartphone in one direction using an adapter.
  • a breathing air passage extends in the mouthpiece element, which is in flow connection with a bypass passage.
  • an outlet opening of the bypass passage is directed towards the microphone of the smartphone. If a user using the spirometer breathes air through the breathing air passage, part of the breathing air flow flows via the bypass passage to the microphone of the smartphone and generates flow noises there, which are detected by the microphone of the smartphone.
  • the smartphone is designed to determine the user's breathing characteristics based on the flow noises.
  • the disadvantage of this arrangement is that disturbing ambient noise can distort the flow noise recorded by the smartphone's microphone. Due to the disturbing influence of the ambient noise, the respiratory parameters are not determined correctly.
  • Another disadvantage of this arrangement is that it cannot be used universally for different smartphone models and no distinction can be made between inspiration and expiration.
  • the object of the invention is therefore to provide an arrangement which enables a correct and repeatable determination of respiratory characteristics of a user using the arrangement.
  • an arrangement is proposed, preferably a pneumotachograph, a spirometer and/or a breathing trainer, with a receiving housing part, a mouthpiece housing part, and a terminal device that has a pressure sensor, wherein the terminal device is arranged in a pressure measuring chamber of the arrangement, which is partially delimited by the receiving housing part and partially by the mouthpiece housing part, wherein the pressure measuring chamber is in flow connection with a breathing air passage of the arrangement, and wherein the arrangement is designed and/or suitable for pressure changes in the pressure measuring chamber and/or in the breathing air passage to be detectable by means of the pressure sensor of the terminal device. Since the terminal device is arranged in the pressure measuring chamber, the detection of the pressure changes is not impaired by environmental influences, such as drafts or wind. This makes it possible to correctly and repeatedly determine breathing characteristics of a user using the arrangement on the basis of the detected pressure changes in the pressure measuring chamber.
  • the arrangement has at least one pressure equalization passage, preferably a plurality of pressure equalization passages, wherein it can preferably be provided that the breathing air passage is in flow connection with the pressure measuring chamber via the pressure equalization passage or the pressure equalization passages of the arrangement.
  • the pressure equalization passage or passages By means of the pressure equalization passage or passages, a flow connection between the breathing air passage and the pressure measuring chamber is achieved in a structurally simple manner.
  • the breathing air passage is partially or completely assigned to the mouthpiece housing part.
  • the pressure equalization passage is partially or completely assigned to the mouthpiece housing part.
  • the arrangement can be manufactured particularly practicably. This is because no tight shape and position tolerances have to be specified when assembling the arrangement in order to obtain a breathing air passage free of interference contours and a pressure equalization passage free of interference contours in the fully assembled arrangement.
  • the mouthpiece housing part is a passive component.
  • the mouthpiece housing part is free of electrical components and/or free of electronic components.
  • the mouthpiece housing part can thus be produced inexpensively, whereby the overall costs of the arrangement are also advantageously low.
  • the pressure equalization passage has a breathing opening and a throttle opening.
  • the pressure equalization passage is at least partially delimited radially outwardly by a base body section of the mouthpiece housing part and/or at least partially by a preferably substantially cuboid-shaped shoulder body section of the mouthpiece housing part.
  • the mouthpiece housing part is formed by the base body section and by the shoulder body section, which are preferably made of the same material and/or in one piece.
  • the shoulder body section of the mouthpiece housing part is at least partially or completely inserted into an interior space delimited by the receiving housing part.
  • the pressure equalization passage branches off from the breathing air passage, preferably between the breathing opening of the breathing air passage and the throttle opening of the breathing air passage. In this way, it is ensured that a user's breathing air flowing through the breathing air passage flows past the pressure equalization section and that only pressure changes caused by the passing breathing air flow occur in the pressure equalization section and/or the pressure measuring chamber.
  • the pressure equalization passage branches off from the breathing air passage between the breathing opening of the breathing air passage and the throttle plate.
  • the breathing air passage is formed by a breathing-side passage section and a throttle-side passage section.
  • the flow cross-sectional area of the breathing-side passage section is larger than the flow cross-sectional area of the throttle-side passage section by a passage section multiplication factor.
  • the throttle-side passage section acts as a flow brake that prevents the breathing air flow in a predefined manner from flowing through the breathing air passage without resistance.
  • the flow with resistance in the breathing air passage leads to larger pressure changes in the pressure equalization section and the pressure measuring chamber. This enables a finer resolution of the pressure changes using the pressure sensor.
  • the passage section multiplication factor has a value in a range from 1 to 8, preferably in a range from 1.2 to 6, particularly preferably in a range from 1.5 to 4, whereby it can most preferably be provided that the passage section multiplication factor has a value of exactly 2.
  • the pressure gradients are sufficiently large for an accurate measurement.
  • the passage section multiplication factor is small enough to determine the pressure drop across the entire breathing air passage or across the breathing air passage with a throttle and mouthpiece attachment element up to a respiratory volume flow of 14 l/s to be limited to less than 0.15 kPa/(l/s). In this way, the normative requirements can be met.
  • the flow cross-sectional area of the breathing-side passage section is larger than the flow cross-sectional area of the pressure equalization passage by a pressure equalization multiplication factor. This ensures that the gas exchange between the breathing air passage and the pressure measuring chamber is as low as possible and that there is as little or no flow in the pressure equalization passage as possible, which could distort the detection of the pressure changes in the pressure measuring chamber.
  • the pressure compensation multiplication factor has an amount in a range from 1 to 10,000, preferably in a range from 5 to 5,000, particularly preferably in a range from 10 to 2,500, whereby it can most preferably be provided that the pressure compensation multiplication factor has an amount of exactly 600.
  • pressure changes can propagate largely unhindered into the pressure measuring chamber and there is no flow, at least no practically relevant flow, in the pressure compensation passage. The detection of the pressure changes is therefore more precise.
  • the lower the pressure compensation multiplication factor the more precise the measurement can be.
  • the higher the pressure compensation multiplication factor the more hygienic/safe the arrangement can be operated, since no moisture condenses on the display/on the electronics.
  • the breath-side passage section and/or the throttle-side passage section have the shape of a cylinder or truncated cone, preferably the shape of a circular cylinder. This geometry facilitates cleaning of the mouthpiece housing part.
  • the arrangement has a throttle orifice, wherein it can preferably be provided that the A throttle plate is preferably detachably connected to the mouthpiece housing part.
  • the flow resistance in the breathing air passage can be adjusted in a predefined manner using the geometry and dimensions of the throttle plate. Since the throttle plate is preferably detachably connected to the mouthpiece housing part, throttle plates with different shapes and geometries can be used depending on the user's state of health, for example.
  • the throttle orifice is arranged in the region of the throttle-side passage section. It can preferably be provided that the throttle-side passage section is limited radially outward, preferably exclusively, by the throttle orifice. This advantageously ensures that the flow resistance in the breathing air passage can be adjusted solely by the shape and/or geometry of the throttle orifice.
  • the throttle orifice can be provided in the form of a circular disk with a disk thickness, wherein the amount of the disk thickness can preferably be provided to be identical to the amount of the length of the throttle-side passage section.
  • the throttle orifice can be provided to be a Lilly-type sieve orifice or a Fleisch-type capillary throttle and to keep the expiratory flow resistance of the entire arrangement below 0.15 kPa/(l/s) up to a breathing flow of 14 l/s.
  • the passage section multiplication factor and to DIN EN ISO 26782:2010-02.
  • the terminal is formed by a mobile phone, preferably by a smartphone.
  • a smartphone is particularly simple and convenient to use.
  • the pressure sensor is formed by an absolute air pressure sensor.
  • the absolute air pressure sensor is formed by a barometer of the terminal device, preferably by a barometer of the mobile phone. This has The advantage is that a pressure sensor that is already present in the mobile phone is used. An additional pressure sensor is therefore not necessary, which advantageously reduces the manufacturing costs of the arrangement.
  • the receiving housing part has an inner surface with a contact surface area on which the terminal device rests at least partially. It can be particularly preferably provided that the inner surface is at least partially formed by at least one rib of the receiving housing part, with a rib cover surface of the rib forming the contact surface area on which the terminal device, preferably a rear side of the terminal device, rests. This results in the smallest possible contact surface between the terminal device and the receiving housing part. This has the advantage that the arrangement can be used with a wide variety of terminal device models without the pressure sensor of the terminal device being covered by the support surface.
  • the receiving housing part is formed by a lower part of the receiving housing part and by an upper part of the receiving housing part. This embodiment facilitates material-saving production of the receiving housing part, namely with different materials.
  • the lower part is connected to the mouthpiece housing part in one piece and/or with the same material and/or inseparably.
  • the receiving housing part is formed in at least two parts, namely the lower part and the upper part. This is because the terminal device can then be inserted into the pressure measuring chamber by opening or removing the upper part from the lower part, whereby accessibility of the pressure measuring chamber from the mouthpiece housing part side is not absolutely necessary.
  • the upper part of the receiving housing part is at least partially transparent and/or is formed by a viewing window unit.
  • a viewing window unit displays on a display of the terminal can be read by the user even if the terminal is in the The receiving housing part is inserted and/or plugged in. This makes it easier to operate the terminal device, preferably the touch display of the terminal device, and also the arrangement.
  • the viewing window unit can be formed by a preferably rigid frame and a transparent film arranged in the frame.
  • the frame in particular makes the viewing window unit stable, so that handling during assembly is easier.
  • the receiving housing part has a sealing element which is arranged between the upper part, preferably the frame of the viewing window unit, and the lower part of the receiving housing.
  • the sealing element ensures a pressure-tight connection between the upper part and the lower part.
  • the upper part preferably the viewing window unit
  • the receiving housing part can be opened and closed by means of the hinge and clamp arrangement, so that the terminal can be inserted into the receiving housing part in a particularly simple manner.
  • the hinge and clamp lock arrangement is formed by at least one hinge and at least one clamp lock. It can preferably be provided that the mouthpiece housing part and the lower part of the receiving housing part are provided and/or manufactured as a unit or in one piece.
  • the arrangement has a blocking device that is arranged in the pressure equalization passage. It can preferably be provided that the blocking device is designed and/or suitable for a mass transfer, preferably an exchange of liquid, vapor and/or solids between the breathing air passage and the Pressure measuring chamber to prevent contamination. Contamination of the pressure measuring chamber or the terminal device with components of the breathing air flow, such as moisture or solid particles, can be reliably prevented by means of the blocking device.
  • the blocking device can be formed by a filter or by a, preferably elastic, membrane.
  • the elastic membrane has the advantage over, for example, a flap arrangement that it is easy to manufacture.
  • the blocking device is designed and/or suitable for allowing pressure changes in the breathing air passage to spread into the pressure measuring chamber, preferably unattenuated and/or unhindered.
  • the use of the blocking device therefore does not affect the detection quality of the pressure changes in the pressure measuring chamber.
  • the arrangement has a mouthpiece attachment element with an attachment element passage. It can preferably be provided that the mouthpiece attachment element is coupled to the mouthpiece housing part in the area of the breathing opening in such a way that there is a flow connection between the attachment element passage and the breathing air passage.
  • the mouthpiece element enables easier handling of the arrangement, in that the assembly consisting of the receiving housing part and the mouthpiece housing part does not have to be positioned directly near the user's face in order to breathe through the breathing air passage. Using the arrangement is therefore more comfortable.
  • the mouthpiece attachment element can be formed by a corrugated hose element, preferably made of plastic.
  • the corrugated hose is flexible and can therefore be manually adjusted to the user's wishes. Because the corrugated hose element is made of plastic, it is easy to clean.
  • the pressure sensor is designed and/or suitable for determining the absolute air pressure, preferably as a reference pressure, in the pressure measuring chamber at predefined time intervals and/or at times dynamically selected by the software and for outputting measurement signals corresponding to the absolute air pressure. The times can be, for example, before, after and/or between spirometric activities.
  • the pressure sensor can always measure the absolute air pressure, which varies directly during spirometry and otherwise always represents the ambient pressure.
  • the terminal has an evaluation unit that is in signal connection with the pressure sensor. It can preferably be provided that the evaluation unit is designed and/or suitable for receiving and further processing pressure measurement signals emitted by the pressure sensor.
  • the hardware and software of the terminal is also used to record and evaluate the pressure measurement signals. This significantly reduces the manufacturing costs compared to known arrangements. It is also possible to manufacture the mouthpiece housing part and the receiving housing part as completely passive components, without electrical or electronic components.
  • the evaluation unit is formed by electronic components and/or software, preferably installed on the terminal device. Additional components and/or additional software are not required in addition to the terminal device.
  • the evaluation unit is designed and/or suitable for determining a respiratory volume flow in the respiratory air passage, preferably indirectly, based on the pressure measurement signals.
  • the respiratory volume flow is a common measurement variable in respiratory therapy and spirometry, which allows conclusions to be drawn about the user's breathing in a simple manner.
  • the terminal has at least one output unit, and that the evaluation unit is preferably designed and/or suitable for controlling the output unit in such a way that information about the respiratory volume flow is output via the output unit, preferably to a user of the arrangement. The user can thus immediately read off his respiratory performance or his progress in breathing training, for example. Alternatively or additionally, the user can be informed acoustically of his progress in breathing training, for example, via the output unit.
  • the information on respiratory volume flow may include key figures, training success and/or a comparison to control groups, etc.
  • the evaluation unit is designed and/or suitable for exchanging information with a central server. It can preferably be provided that the evaluation unit is designed and/or suitable for transferring the information about the respiratory volume flow to the central server.
  • the information can thus be made easily accessible to a wide range of users, such as doctors, clinics, health insurance companies, etc.
  • the central server is a medical provider or a telemedicine server.
  • the telemedicine server executes, for example, machine learning methods or artificial intelligence.
  • the mouthpiece housing part is detachably connected to the receiving housing part, preferably via a bayonet connection, wherein it can preferably be provided that the mouthpiece housing part can be connected to the receiving housing part by plugging, turning, sliding and/or folding.
  • the breathing air passage extends at least partially or completely through the mouthpiece housing part.
  • the pressure equalization passage extends at least partially or completely through the mouthpiece housing part.
  • the arrangement can have two or more pressure equalization passages, wherein the two or more pressure equalization passages can preferably extend parallel to one another.
  • the multiple, preferably thin and long pressure equalization passages serve to ensure that neither moisture nor solids enter the pressure measuring chamber.
  • a longitudinal axis of the breathing air passage and a longitudinal axis of the pressure equalization passage run in a common plane and/or intersect and/or are arranged at right angles to each other.
  • the mouthpiece housing part rests against the receiving housing part in a pressure-tight manner, wherein it can preferably be provided that the mouthpiece housing part rests against the receiving housing part with the interposition of a mouthpiece sealing element.
  • the mouthpiece housing part is partially or completely made of plastic.
  • the receiving housing part is partially or completely made of plastic.
  • the software on the terminal device can guide the user in carrying out spirometry or breathing training visually using the terminal device's display and/or acoustically using a loudspeaker on the terminal device and respond to or process user instructions in a visual and/or acoustic dialogue.
  • the software on the terminal device can recognize a spoken start instruction from the user.
  • the passage or passages such as, for example, breathing air passage, pressure equalization passage and/or passage section, are material-free regions through which a gas flow, such as, for example, a breathing air flow, can be passed, preferably guided.
  • a method is proposed, preferably for assembling and/or using an arrangement as described above, with a provision step in which a receiving housing part, a mouthpiece housing part with a breathing air passage and a terminal device are provided, a first assembly step in which the terminal device is placed and/or plugged into the receiving housing part, a second assembly step in which the mouthpiece housing part is connected to the receiving housing part, and an application step in which a user of the arrangement inhales and/or exhales a breathing air stream through the breathing air passage.
  • a pressure sensor of the terminal device detects pressure changes in a pressure measuring chamber which is delimited at least partially on the outside by the mouthpiece housing part and at least partially by the receiving housing part.
  • the terminal has an evaluation unit which is in signal connection with the pressure sensor, and that in the application step the evaluation unit receives and further processes pressure measurement signals output by the pressure sensor.
  • the evaluation unit determines a respiratory volume flow in the respiratory air passage, preferably indirectly, on the basis of the pressure measurement signals.
  • the terminal has at least one output unit which, in the application step, is The evaluation unit is controlled in such a way that information about the respiratory volume flow is output via the output unit, preferably to a user of the arrangement or to a central server.
  • an arrangement is also proposed, preferably a pneumotachograph, a spirometer and/or a breathing trainer, with a receiving housing part, a mouthpiece housing part, a pressure measuring chamber, a breathing air passage, and a pressure equalization passage, wherein the mouthpiece housing part is connected to the receiving housing part, wherein the pressure measuring chamber is at least partially delimited by the mouthpiece housing part and at least partially by the receiving housing part, and wherein the pressure measuring chamber is in flow connection with the ambient air, preferably exclusively, via the pressure equalization outlet and the breathing air passage.
  • At least the pressure measuring chamber or at least the receiving housing part is designed and/or suitable such that the terminal device can be inserted or plugged into the pressure measuring chamber.
  • Fig. 1 in a view from above an arrangement comprising a receiving housing part, a mouthpiece housing part and a smartphone;
  • Fig. 2 shows a perspective exploded view of the arrangement according to Fig. 1;
  • Fig. 4 in a perspective view the mouthpiece housing part
  • FIG. 5 shows a sectional view of the mouthpiece housing part.
  • Figure 1 shows an arrangement 1 in a view from above.
  • the arrangement 1 can be used as a spirometer, pneumotachograph and/or as a breathing trainer.
  • the arrangement 1 has a pocket-shaped housing part 3, which is therefore only open on one side via an opening, as shown in Figure 2, and a mouthpiece housing part 5.
  • the mouthpiece housing part 5 is made of the same material and is formed in one piece and has a base body section 7 and a shoulder body section 9.
  • the mouthpiece housing part 5 with the shoulder body section 9 is completely releasably inserted into an interior space 11 of the receiving housing part 3 delimited by the receiving housing part 3.
  • a contact surface 13 (see, for example, Figures 4 and 5) of the mouthpiece housing part 5 lies flat against an opening edge surface 15 (see Figure 2) of the opening of the receiving housing part 3.
  • the mouthpiece housing part 5 and the receiving housing part 3 delimit a pressure measuring chamber 17 in which a terminal device 21 having a pressure sensor 19 is arranged.
  • a breathing air passage 23 and a pressure equalization passage 25 extend through the mouthpiece housing part 5.
  • the breathing air passage 23 has a breathing opening 27 and a throttle opening 29, via which the breathing air passage 23 is fluidically connected to the ambient air.
  • the pressure equalization passage 25 branches off from the breathing air passage 23 and fluidically connects the breathing air passage 23 to the pressure measuring chamber 17.
  • the pressure equalization passage 25 branches off from the breathing air passage 23 approximately midway between the breathing opening 27 of the breathing air passage 23 and the throttle opening 29 of the breathing air passage 23 in relation to the longitudinal axis of the breathing air passage 23, as shown in Figures 1, 4 and 5.
  • the longitudinal axis of the breathing air passage 23 and the longitudinal axis of the pressure equalization passage 25 lie in one plane and extend approximately at right angles to one another.
  • the breathing air passage 23 is formed by a breathing-side passage section 31 and a throttle-side passage section 33, each of which has the shape of a circular cylinder.
  • the throttle-side passage section 33 directly borders to the throttle opening 29 of the breathing air passage 23 and extends as far as the breathing-side passage section 31.
  • the breathing-side passage section 31 is directly adjacent to the breathing opening 27 of the breathing air passage 23 and extends as far as the throttle-side passage section 33.
  • the flow cross-sectional area of the breathing-side passage section 31 is larger than the flow cross-sectional area of the throttle-side passage section 33 by a passage section multiplication factor.
  • the passage section multiplication factor can be in a range from 1 to 8, preferably in a range from 1.2 to 6, particularly preferably in a range from 1.5 to 4, whereby it can most preferably be provided that it is exactly 2.
  • a passage multiplication factor of approx. 1.2 can be selected.
  • a pass-through multiplication factor of approx. 6 can be selected.
  • the pressure equalization passage 25 has the shape of a circular cylinder.
  • the diameter of the breathing-side passage section 31 is larger than the diameter of the pressure equalization passage 25 by a pressure equalization multiplication factor.
  • the pressure equalization multiplication factor can be in a range from 1 to 10,000, preferably from 5 to 5,000, particularly preferably in a range from 10 to 2,500, whereby the pressure equalization multiplication factor can most preferably be exactly 600.
  • ten pressure equalization passages can be provided which are identical geometrically and in terms of their dimensions.
  • the pressure equalization multiplication factor for each pressure equalization passage is approximately 600. It is crucial that the pressure propagates unhindered, but no air humidity reaches the terminal device.
  • a ratio between the diameter of the or one of the pressure equalization passages 25 and a length of the or one of the pressure equalization passages 25 is in a range from 0.02 to 0.5, preferably in a range between 0.05 and 0.2. Most preferably, the ratio is exactly 0.1.
  • the breathing-side passage section 31 and the pressure equalization passage 25 are each limited radially outward by the mouthpiece housing part 5.
  • the arrangement 1 also has a throttle orifice 35 which is detachably attached to the mouthpiece housing part 5 in the region of the throttle-side passage section 33.
  • the throttle-side passage section 33 is limited radially outwards exclusively by the throttle orifice 35.
  • a pressure-tight connection is provided in a joining area between the mouthpiece housing part 5 and the receiving housing part 3. This means that no gas exchange takes place in the joining area between the mouthpiece housing part 5 and the receiving housing part 3 and that the only flow connection between the pressure measuring chamber 17 and the ambient air is via the pressure equalization passage 25.
  • the receiving housing part 3 has an inner surface 37 which is at least partially formed by four ribs 39, as shown in Figure 3. Instead of the ribs 39, however, knobs can also be used, in which case the inner surface 37 is at least partially formed by the knobs.
  • the terminal device 21 inserted into the receiving housing part 3 is only in contact with the rib cover surfaces of the ribs 39, so that the rib cover surfaces form a contact surface area between the inner surface 37 and the terminal device 21. There is therefore only a very small contact area between the terminal device 21 and the inner surface 37, namely between the rib cover surfaces and a rear side of the terminal device 21. Unhindered accessibility of the pressure sensor 19 is therefore reliably guaranteed due to the small contact area, even with different terminal device models.
  • an elastic membrane 38 (see Figure 5) is arranged in the pressure equalization passage 25, which forms a blocking device.
  • the membrane 38 prevents liquid, vapor and solids contained in the breathing air flow from entering the pressure measuring chamber 17 via the pressure equalization passage 25.
  • pressure changes in the breathing air passage 23 spread unattenuated and unhindered through the membrane 38 into the pressure measuring chamber 17.
  • the cross-sectional area of the pressure equalization passage can be selected to be as large as possible. Because in this case The entry of liquid, vapor and/or solids into the pressure measuring chamber is not ensured by the geometry of the pressure equalization passage (length and diameter), but by the membrane.
  • the receiving housing part 3, the mouthpiece housing part 5 and the terminal device 21 are provided.
  • the arrangement 1 is then assembled in an assembly step.
  • a first assembly step and a second assembly step are provided for this.
  • the terminal device 21 is inserted into the pocket-shaped receiving housing part 3 so that it rests on the ribs, specifically on the rib cover surfaces of the ribs, of the receiving housing part 3.
  • the mouthpiece housing part 5 with the shoulder body section 9 is pushed into the interior space 11 of the receiving housing part 3 delimited by the receiving housing part 3.
  • the pressure measuring chamber 17 is closed pressure-tight with the exception of the flow connection via the pressure equalization passage 25. The arrangement 1 is thus fully assembled and ready for use as a spirometer.
  • a user using the arrangement 1 inhales and/or exhales breathing air through the breathing air passage 23.
  • the breathing air exhaled by the user flows through the mouthpiece housing part 5 via the breathing air passage 23 in an exhalation direction AR (see Figure 5).
  • the breathing air inhaled by the user flows through the mouthpiece housing part 5 via the breathing air passage 23 in an inhalation direction ER (see Figure 5).
  • pressure changes also occur in the pressure measuring chamber 17 which are identical to the pressure changes in the breathing air passage 23 and/or at least correlate with the pressure changes in the breathing air passage 23. The pressure changes occur simultaneously in the breathing air passage 23 and the pressure measuring chamber 17.
  • the pressure changes occurring in the pressure measuring chamber 17 are detected by the pressure sensor 19, which is designed as an absolute pressure sensor, converted into pressure measurement signals, output to an evaluation unit 40 of the terminal device 21 and correlated to any reference pressure or the ambient air pressure determined at the start of the application.
  • the evaluation unit 40 can be formed by electronic components and a software application installed on the terminal device 21.
  • the evaluation unit 40 indirectly determines a respiratory volume flow using the pressure measurement signals transmitted by the pressure sensor 19 as a measured variable.
  • the respiratory volume flow is determined, for example, by temporal resolution of the pressure changes.
  • Information about the respiratory volume flow is output graphically by the evaluation unit 40 via a display 41 of the terminal device 21. Additionally or alternatively, the information about the respiratory volume flow can be output acoustically via a loudspeaker (not shown) of the terminal device 21. In addition, the information about the respiratory volume flow can be output from the evaluation unit 40 to a central server (not shown). List of reference symbols:

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Veterinary Medicine (AREA)
  • Surgery (AREA)
  • Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Physiology (AREA)
  • Pulmonology (AREA)
  • Multimedia (AREA)
  • Measuring Fluid Pressure (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)

Abstract

L'invention concerne un ensemble, de préférence un pneumotachographe, un spiromètre et/ou un entraîneur respiratoire, comprenant une partie de boîtier de réception (3), une partie de boîtier d'embout buccal (5), et un terminal qui comprend un capteur de pression (19), le terminal étant disposé dans une chambre de mesure de pression (17) de l'ensemble (1), ladite chambre de mesure de pression étant bordée en partie par la partie de boîtier de réception (3) et en partie par la partie de boîtier d'embout buccal (5), la chambre de mesure de pression (17) étant en communication fluidique avec un passage d'air (23) de l'ensemble (1), et l'ensemble (1) étant conçu et/ou adapté pour que les changements de pression dans la chambre de mesure de la pression (17) et/ou dans le passage d'air (23) puissent être détectés au moyen du capteur de pression (19) du terminal.
PCT/EP2024/054963 2023-02-28 2024-02-27 Ensemble, de préférence pneumotachographe, spiromètre et/ou entraîneur respiratoire, et procédé Ceased WO2024180068A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102023104909.7A DE102023104909A1 (de) 2023-02-28 2023-02-28 Anordnung, bevorzugt Pneumotachograph, Spirometer und/oder Atemtrainer sowie ein Verfahren
DE102023104909.7 2023-02-28

Publications (1)

Publication Number Publication Date
WO2024180068A1 true WO2024180068A1 (fr) 2024-09-06

Family

ID=90366163

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2024/054963 Ceased WO2024180068A1 (fr) 2023-02-28 2024-02-27 Ensemble, de préférence pneumotachographe, spiromètre et/ou entraîneur respiratoire, et procédé

Country Status (2)

Country Link
DE (1) DE102023104909A1 (fr)
WO (1) WO2024180068A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012038903A2 (fr) 2010-09-22 2012-03-29 Lior Gonnen Spiromètre acoustique modulaire
US20160015324A1 (en) * 2014-07-17 2016-01-21 Dean Du Bois System, Method, and Apparatus for Measuring Pulmonary Data
US20160242701A1 (en) * 2010-09-22 2016-08-25 Meytar (Dital) Engineering Limited Acoustic spirometer system
US20170135605A1 (en) * 2014-06-20 2017-05-18 Spiromagic Aps Medical device for monitoring a physiological pulmonary condition of a user, a mouthpiece for such medical device and method for using such medical device
US20180259380A1 (en) * 2015-01-08 2018-09-13 University Of Surrey A flow meter
WO2022045480A1 (fr) * 2020-08-31 2022-03-03 브레싱스 주식회사 Ensemble embout buccal pour dispositif de mesure de respiration

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7282032B2 (en) * 2003-06-03 2007-10-16 Miller Thomas P Portable respiratory diagnostic device
US11617920B2 (en) * 2016-07-13 2023-04-04 Airofit A/S Respiratory device and system for exercising and analyzing respiration of a user
SE544750C2 (en) * 2020-01-23 2022-11-01 Monivent Ab Device for a respiration arrangement comprising a pressure connecting portion and a flow guiding element with a shielding portion
DE102020108199B4 (de) * 2020-03-06 2025-08-14 Ac Aircontrols Gmbh Verfahren und Vorrichtung zum Bestimmen von Volumenstrom, Druck und Zusammensetzung eines Gases

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012038903A2 (fr) 2010-09-22 2012-03-29 Lior Gonnen Spiromètre acoustique modulaire
US20160242701A1 (en) * 2010-09-22 2016-08-25 Meytar (Dital) Engineering Limited Acoustic spirometer system
US20170135605A1 (en) * 2014-06-20 2017-05-18 Spiromagic Aps Medical device for monitoring a physiological pulmonary condition of a user, a mouthpiece for such medical device and method for using such medical device
US20160015324A1 (en) * 2014-07-17 2016-01-21 Dean Du Bois System, Method, and Apparatus for Measuring Pulmonary Data
US20180259380A1 (en) * 2015-01-08 2018-09-13 University Of Surrey A flow meter
WO2022045480A1 (fr) * 2020-08-31 2022-03-03 브레싱스 주식회사 Ensemble embout buccal pour dispositif de mesure de respiration

Also Published As

Publication number Publication date
DE102023104909A1 (de) 2024-08-29

Similar Documents

Publication Publication Date Title
EP0891199B1 (fr) Dispositif et procede pour surveiller des parametres de respiration d'un systeme de respiration artificielle
EP2903672B1 (fr) Système, procédé et utilisation aux fins d'entraînement à une opération d'inhalation
DE69936767T2 (de) Patientenmonitor
DE2641289C3 (de) Atmungsmeßgerät zur Druckkorrektur
EP2134256A2 (fr) Pneumotachographe transportable pour mesurer des composants du volume d'expiration, et procédé correspondant
DE102010048317B4 (de) Künstliche Nase mit Sprechventil
EP0727962B1 (fr) Procede et dispositif de detection automatique de bruits respiratoires anormaux
DE10035054C1 (de) Atemstromsensor
DE102004042797B4 (de) Erfassungsgerät sowie Verfahren zur Observation schlafbezogener Atmungsstörungen
DE3529367C2 (de) Vorrichtung zur Lungenfunktionsanalyse
DE69521026T2 (de) Vorrichtung zur messung der maximalströmung der ausatemluft
DE102008028662A1 (de) Vorrichtung und Verfahren zum Monitoring bei einer manuellen Beatmung
DE10345950A1 (de) Inhalationstherapievorrichtung mit Ventil
WO2024180068A1 (fr) Ensemble, de préférence pneumotachographe, spiromètre et/ou entraîneur respiratoire, et procédé
DE69921868T2 (de) Verfahren und Vorrichtung zur Inhalationsuntersuchung
DE102021113642A1 (de) Verbindungs-Anordnung mit einem Volumenfluss-Sensor und einer Homogenisierungseinheit zur künstlichen Beatmung eines Patienten sowie ein Herstellungsverfahren
EP1722682A1 (fr) Appareil pour analyse oscillometrique de l'impedance des voies respiratoires
DE202013010194U1 (de) Set zum Aufkleben über ein Tracheostoma eines laryngektomierten Patienten
EP2464287B1 (fr) Unité utilisateur pour la détermination des paramètres de performance dans les analyses des gaz de respiration
EP0616792B1 (fr) Détermination oscillométrique de l'impédance des voies respiratoires à l'aide d'une impédance étalon destinée au calibrage d'un dispositif de mesure de pression et de débit
EP4041358B1 (fr) Raccord destiné à un système de ventilation de patient
DE202005008359U1 (de) Tracheostomarohr mit Ventileinrichtung
DE102006024363A1 (de) Vorrichtung zur Volumen- oder Fließgeschwindigkeitsmessung von Fluiden
AT505483B1 (de) Einrichtung zur nichtinvasiven messung der kerntemperatur
DE4326374C2 (de) Referenzimpedanz

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 24712164

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 2024712164

Country of ref document: EP

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 2024712164

Country of ref document: EP

Effective date: 20250929

ENP Entry into the national phase

Ref document number: 2024712164

Country of ref document: EP

Effective date: 20250929

ENP Entry into the national phase

Ref document number: 2024712164

Country of ref document: EP

Effective date: 20250929

ENP Entry into the national phase

Ref document number: 2024712164

Country of ref document: EP

Effective date: 20250929

ENP Entry into the national phase

Ref document number: 2024712164

Country of ref document: EP

Effective date: 20250929