Classifications

• • A—HUMAN NECESSITIES
  • A63—SPORTS; GAMES; AMUSEMENTS
  • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
  • A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
  • A63B21/00192—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using resistance provided by magnetic means
• • A—HUMAN NECESSITIES
  • A63—SPORTS; GAMES; AMUSEMENTS
  • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
  • A63B23/00—Exercising apparatus specially adapted for particular parts of the body
  • A63B23/18—Exercising apparatus specially adapted for particular parts of the body for improving respiratory function
• • A—HUMAN NECESSITIES
  • A63—SPORTS; GAMES; AMUSEMENTS
  • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
  • A63B23/00—Exercising apparatus specially adapted for particular parts of the body
  • A63B23/18—Exercising apparatus specially adapted for particular parts of the body for improving respiratory function
  • A63B23/185—Rhythm indicators

Definitions

• the invention relates to a training device for the respiratory function with a mouthpiece, a respiratory air duct adjoining the mouthpiece with an inlet / outlet opening for air, a flexible air bag connected to the respiratory air duct and a valve arrangement for regulating the amount of exhausted air from the respiratory air duct and the amount of fresh air entering the breathing air duct and a method for operating such a device.
• Training devices of this type serve to strengthen the respiratory muscles. On the one hand, this can serve therapeutic purposes, but on the other hand, healthy people can improve respiratory functions and increase respiratory performance. The latter is of interest, for example, to people doing sports. Devices of this type are known, for example from WO 9917842.
• the device described in WO 9917842 has a tubular breathing air channel which is provided with a mouthpiece at one end. At the end of the breathing air duct facing away from the mouthpiece, the latter is branched, a portion of the duct opening into a flexible bag and being connected to it.
• the second branch of the breathing air channel is connected to a valve arrangement, via which used air can flow out of the breathing air channel or fresh air can be sucked into the breathing air channel.
• the valve arrangement is a spring reed valve (reed type), which opens at a predetermined negative pressure and enables fresh air to be drawn in through the breathing air duct.
• the valve closes and is further designed so that when a correct excess pressure in the breathing air channel in turn opens and allows used air to flow out of the breathing air channel into the environment.
• the basic function of the known training device is that the person who uses the device breathes only through the mouthpiece and thus the training device. With each breathing cycle, part of the exhaled air is stored in the bag and only when the bag is full, due to the resulting excess pressure, the valve opened and the remaining volume exhaled through the valve. When changing from the exhalation process to the inhalation process, the valve closes and the person breathing through the mouthpiece first breathes in the entire contents of the bag volume.
• the previously known device has a control device which specifies the frequency at which breathing should take place and a control device for monitoring the CO 2 content of the breathing air.
• the CO 2 content in the air we breathe should remain constant in a predetermined area that is not harmful to health.
• the components of the training device through which breathing air flows are contaminated during every training process and must be able to be cleaned. Especially when the device is used therapeutically, the affected parts must be sterilized. In the previously known devices, these processes cause difficulties; in particular, cleaning the valve arrangement is difficult and involves considerable effort.
• the use according to the invention of a piston valve in the valve arrangement leads to several advantages.
• the housing part of the piston valve can form an integral part of the breathing air channel and the valve body can be arranged and guided directly inside the breathing air channel. This ensures an optimal flow of the breathing air in the direction of the flow axis in the air passage space of the breathing air duct and the valve housing part.
• the valve body has a piston which seals against a sealing surface on the air passage space and is slidably guided in the air passage space via guide parts and displaceable in both directions of the flow axis.
• the valve body has no mechanical connections to the housing part of the piston valve, but there are additional force-generating means which position the valve body in relation to the housing part of the piston valve in the sealing position.
• These force-generating means also generate the forces to return the valve body from a deflected position to the sealing position.
• the force exerted by the force-generating means on the valve body is predetermined so that the valve body can be moved from the sealing position into an open position when the air bag is full or empty due to the overpressure or underpressure in the breathing air channel.
• the force-generating means are advantageously magnetic elements; on the one hand, at least one component made of a magnetic material is arranged in the valve body. On the other hand, at least one component for generating a magnetic field or at least one component made of a magnetic material is installed in the housing part of the valve.
• the components for generating the desired magnetic forces are arranged in the sealing position of the valve body approximately in a common radial plane to the longitudinal axis of the air passage space.
• the component for generating a magnetic field in the housing Part of the valve is expediently formed by a permanent magnet or by an electromagnet, the magnetic field of which can be regulated by changing the current.
• the use of magnetic fields to generate the necessary holding and restoring forces has the great advantage that the forces can be transmitted to the valve body without contact.
• valve arrangement becomes very simple, since no additional force transmission elements are necessary.
• magnetic components or the components for generating a magnetic field can be completely encapsulated, so that safe cleaning and, if necessary, sterilization of the components in contact with breathing air is possible.
• the only movable component in this arrangement is the valve body with the piston, which is freely displaceable in the air passage space of the breathing air duct.
• magnetic elements as force-generating means permits several advantageous embodiments. It is possible to install a component made of magnetically hard material, for example a permanent magnet, in the valve body and to install an annular component made of a magnetically soft material, for example iron, in the housing part of the piston valve. However, it is also possible to use a component made of magnetically soft material, for example iron, in the valve body and to use one or more components made of magnetically hard material, for example permanent magnets, in the housing part of the piston valve. A particularly compact solution is obtained if the magnetic elements in the valve body as well as in the housing part of the piston valve consist of a magnetically hard material, for example permanent magnets in both cases.
• a component made of magnetically hard material for example a permanent magnet
• two components made of magnetically hard material are expediently installed in the housing part of the valve or in the region of the housing part, these components being symmetrically opposed with respect to the longitudinal axis of the air passage space.
• a major advantage of all these embodiments is that the magnetic elements or their pole arrangements and the predetermined strength of the magnetic field enable the valve body to be positioned precisely in the sealing position, with the desired holding force.
• constant or decreasing forces act on the valve body via the opening path, so that a very rapid, complete opening of the air passage space in the valve is possible.
• the valve arrangement according to the invention therefore enables a more precise determination and delimitation of the air volume which, in addition to the content of the bag volume, is exhaled from the training device or inhaled into the training device and thus into the lungs of the person exercising.
• a piston valve according to the invention now also makes it possible to integrate the housing part of the piston valve in one piece into the breathing air duct, i.e. combine all components that are in contact with breathing air in a single component.
• This component namely the breathing air channel, is detachably held in a casing and in such a way that it can be removed and cleaned in a simple manner. Since the valve body is guided freely in the breathing air channel, it can be removed from it in a simple manner and all these components can be cleaned in the simplest way. Conveniently, they consist of a material that is resistant to sterilization processes.
• the components made of magnetic material or the components for generating a magnetic field, which are assigned to the housing part of the piston valve, and sensors for determining the position of the valve body are expediently arranged.
• This jacket housing also includes a handle for holding the training device and the transmission elements for the data determined by the position sensors and any other devices. Since the casing does not come into contact with the breathing air, it does not have to be sterilizable and its shape can be designed in a wide range, since the requirements for cleaning options are much lower.
• the training device can be used for two different training variants of breathing. Namely for endurance training or for strength training. Endurance training works with the breathing frequency and the depth of breathing. In resistance training, the resistance that is opposed to breathing processes is also changed.
• the force-generating means in the area of the housing part of the piston valve are interchangeable or electromagnets are used, the current supply of which can be regulated.
• the opening force of the piston valve can be changed by using differently powerful means for generating force. As a result, the force generated by breathing to open the valve is also changed.
• the change in the magnetic field has the same effect when using electromagnets.
• this valve arrangement can be equipped with a switch.
• the electromagnet is linked to a control unit. This control unit then controls the opening and closing of the piston valve depending on the specified breathing frequencies or breathing cycles.
• resilient elements are used as the force-generating means. At least one resilient element is connected on the one hand to an end region of the valve body and on the other hand to the housing part of the piston valve or the breathing air channel.
• This arrangement also results in a simplified structural design compared to the known solution and the advantages of the freely movable valve body with the piston are retained.
• Spiral springs can be used in a known manner as resilient elements, these being designed in such a way that they can be easily removed and cleaned with the valve body. For certain applications, it may be appropriate to provide two piston valves acting in parallel and to assign the inhalation function or the exhalation function to each of the valves.
• the first piston valve then regulates the amount of exhausted air from the breathing air channel, and the second of the piston valves controls the amount of fresh air entering the breathing air channel.
• the displacement of the valve body is advantageously limited by end stops. These end stops determine the opening positions of the piston valve for the exit of used air from the breathing air duct and for the entry of fresh air into the breathing air duct.
• sensors arranged in the housing part of the piston valve or in the jacket housing, which serve to determine the position of the valve body in the air passage space. These sensors are used to determine whether the valve body is in one of the opening positions and to determine the period in which the piston valve is open. The opening times of the piston valve are monitored and registered and are used to monitor the correct ratio between the volume of breathing air in the bag and the breathing air flowing out or in via the piston valve.
• a Hall sensor As sensors in each case in the housing part of the piston valve or in the jacket housing on both sides of the sealing position of the valve body.
• These Hall sensors react in a known manner to changes in the magnetic field by movements of the valve body in the direction of the longitudinal axis of the air passage channel and can therefore generate corresponding position signals.
• the Hall sensors can be replaced in a manner known per se by reed sensors, optical sensors or pressure sensors.
• the sensors are connected to a transducer and to an electronic control unit via an interface and a data line.
• the term control device is to be interpreted in the broadest sense and also includes, for example, the use of a computer.
• This control unit contains, for example Input unit for target data for breathing training, a microprocessor, a data memory and at least one display device for control and monitoring information.
• the desired limit values or control values for the breathing cycles are specified via this control unit.
• the breathing activities of the person using the training device are determined by comparison with the measurement data of the sensors arranged in the area of the valve arrangements, and these data are compared with the target data. In the event of deviations from the target data, the control unit automatically determines the necessary corrections and displays them via the display device.
• the person using the training device must then change their breathing processes, in particular the frequency and / or depth of breathing, until they match the target data.
• the control unit triggers an alarm function, since the CO 2 content in the inhaled and exhaled air then no longer corresponds to the target values. Since with this use of at least one piston valve according to the invention, the open positions and thus the opening times of the valve body and from this the relationships of the moving air volumes to one another can be determined exactly, the arrangement of a CO 2 sensor is not necessary. This further simplifies the training device and also simplifies handling by the people training or to be treated. Due to the special design of the valve body, the training device is relatively insensitive to posture and also makes handling easier in this regard.
• the respiratory training device is used by a person, for therapeutic purposes or for training the respiratory function, individual personal specifications must be specified. These are based on empirical values.
• the vital capacity is measured and the bag volume required for the training is determined. In the standard case, the bag volume corresponds to 50% of the volume of the vital capacity. Further information on determining the bag volume is known from WO 9917842 and is also used here accordingly. From empirical values for a so-called minute ventilation, a correction factor for the training state of the person concerned and the bag volume, the respiratory rate is now calculated. A product is divided from the two factors training condition and minute ventilation by the bag volume.
• WO 9917842 more detailed information is contained in WO 9917842 and can also be used in addition.
• the affected person breathes through the training device, a portion of the breathing air volume being removed from the air bag when inhaled and then a portion of the air volume being supplied from the ambient air via the valve arrangement when the bag is empty.
• the valve arrangement is opened by the negative pressure generated in the breathing air duct as a result of the inhalation process.
• the valve arrangement closes and a part of the air volume is first supplied to the air bag and stored therein. After the bag has been filled, an excess pressure is created in the breathing air channel as a result of the exhalation process and the valve arrangement is opened again and a part of the exhaled air is released into the ambient air via this.
• the respiratory rate and the bag volume are dependent on each other, the CO 2 content in the breathing air is kept approximately constant via these device functions or inhalation cycles. This prevents hyper or hypoventilation from occurring. It is particularly advantageous if the respiratory rate is given to a control device as the target value.
• Devices are to be understood as control devices which have at least one microprocessor or comprise, for example, a computer.
• the time period for one inhalation or exhalation cycle is determined from the predetermined breathing frequency via the control device or its processor.
• the duration of the open state of the valve arrangement is measured on the valve arrangement and the corresponding measured values are transmitted to the control unit.
• a ratio value is determined and compared with a predetermined stored value.
• This predefined stored value is known from experience curves which were determined when the CO 2 content of the breathing air was approximately constant. If the calculated ratio deviates from the stored and specified value, the control unit uses a display Device generates a correction and / or alarm display and the person using the training device must adapt their breathing processes to the values specified by the device. For people with average training, it proves to be advantageous to set the ratio between the calculated cycle duration of the inhalation or exhalation process and the opening duration of the valve arrangement to approximately 2: 1.
• force-generating means which can be regulated or controlled, are used on the valve arrangement for positioning the valve body on the valve arrangement, there is the further advantage that corrections of the breathing processes can also be carried out by regulating the opening times of the valve arrangement.
• the desired opening times of the valve arrangement are predefined on the control unit, which generates corresponding control pulses for the force-generating means.
• the force-generating means carry out the corresponding opening and closing processes of the valve arrangement, which are then only partially or no longer influenced by the overpressure or underpressure in the breathing air duct.
• This configuration of the training device and the corresponding control specifications are intended in particular for use under expert supervision so that compliance with the correct breathing data is ensured.
• FIG. 1 is an overall view of the training device according to the invention for the respiratory function and the associated control device
• FIG. 2 shows a longitudinal section through the breathing air channel in the training device with the piston valve
• FIG. 3 shows a perspective view of the valve body of the piston valve
• FIG. 4 shows a cross section through the breathing air channel of the training device
• Fig. 5 shows a cross section through a schematically illustrated valve arrangement with springs as a force-generating means
• Fig. 6 shows a cross section through a schematic representation of a breathing air duct with two piston valves.
• the training device for the respiratory function. It essentially consists of a jacket housing 1, a breathing air channel 2 inserted into this jacket housing 1, a mouthpiece 3 which is connected to the breathing air channel via a connecting pipe 8 and an air bag 5.
• the training device is equipped with a cable or data line 13 Control unit 14 connected.
• the control unit 14 contains a processor and data memory, which, however, can also be part of a portable or stationary computer connected to the control unit.
• the casing 1 has a handle 7, with which the training device can be held manually in the required and desired manner.
• the mouthpiece 3 is put into the mouth by a person who uses the device for training or therapeutic purposes and after the airway is closed via the nose, breathing is carried out completely via the training device.
• the breathing air flows through the connecting pipe 8 into the breathing air channel 2.
• This breathing air channel 2 is Y-shaped and branches into two channels, a branch pipe 9 leading to the air bag 5 and the actual breathing air channel 2 to an inlet and outlet opening 4 for breathing or fresh air.
• a valve arrangement 6, which is described in more detail in FIGS. 2 to 4, is arranged in the breathing air channel 2.
• the air bag 5 is detachable via a connection element 12, connected to the branch pipe 9, and air bags 5 with different volumes are available, which are used depending on the lung vital capacity of the person exercising.
• the valve arrangement 6 initially closes the inlet and outlet opening 4, so that the flexible air bag 5 is first filled with exhaled air.
• valve arrangement 6 is closed again for the time being and therefore the breathing air contained in the air bag 5 is first inhaled again.
• a negative pressure is created in the connecting pipe 8 and in part of the breathing air duct 2, which opens the valve arrangement 6.
• Fresh air is now inhaled through the inlet opening 4 for the remaining inhalation cycle.
• the respiratory rate per minute is specified via the control unit 14 and its input unit 15.
• the breathing processes effectively carried out by the exercising person are shown in the example shown on a display element 17 and on a second display element 16, which is designed as a display, speech outputs are displayed, for example correction or error messages.
• the control device 14 or its display elements 16, 17 display alarm signals.
• the vital capacity of the lungs of the person to be trained or to be treated therapeutically must first be determined in a known manner.
• the volume of the air bag 5 to be used and the breathing frequency with which the person is to breathe can then be determined mathematically or with the aid of tables.
• the respective training status and the desired training process must be taken into account.
• Bags 5 with a volume of 0.5 1 to 3.5 I, in 0.5 I steps, are provided for normal training processes.
• the vital capacity is determined with 5 1 and from this the volume of the air bag 5 with 50% of the vital capacity is 2.5 I.
• the minute volume depends on size and weight and is, for example, 150 I.
• the calculated respiratory rate is then between 20 up to 24 cycles / min. 2 shows a longitudinal section through the upper region of the casing 1 and the breathing air channel 2 used therein with the valve arrangement 6.
• the valve arrangement is a piston valve 6, which has considerable advantages over the known valves.
• the breathing air channel 2 is detachably inserted into the casing 1 and is detachably fastened in the casing 1 by means of the connection element 10 and the closure element 11.
• the connection element 10 is arranged on the side on which the connection tube 8 for the mouthpiece 3 is located.
• An external thread 18 is arranged on the breathing air channel 2 and the connection element 10 has an internal thread 44.
• the connecting tube 8 is connected to the breathing air channel 2 by means of the connecting element 10 via a sealing ring 19, which at the same time forms a holding shoulder.
• the breathing air channel 2 is Y-shaped and has an air passage space 26 and a flow channel 30 branching off from it.
• the flow channel 30 leads, as already described, to the air bag 5, which is connected to the branch pipe 9 of the breathing air channel 2 via the connection element 12.
• the piston valve 6 is arranged after the branching of the flow duct 30.
• This piston valve 6 consists of a housing part 22, which forms an integral part of the breathing air channel 2.
• a sealing surface 27 is arranged in the area of the housing part 22, which extends in the direction of the flow axis 28 only over a partial area, for example over 9 mm in the example shown, the diameter of the air passage space 26 in the area of the sealing position being approximately 23 mm.
• the air passage space 26 Before and after this sealing surface 27, the air passage space 26 has a larger cross section than in the sealing area.
• a valve body 23 is inserted into the air passage space 26 in the area of the housing part 22. This valve body has a piston 24 and a guide part 25 and 46. The valve body 23 is slidably guided via the piston 24 and the guide part 25 in the air passage space 26 of the breathing air duct 2 and is freely movable in the direction of the arrows 31. The movement of the valve body in the direction of the arrows 31 or in the direction of the flow axis 28 in the air passage space 26 is beat 42, 43 limited, which are shown in Fig. 4. The valve body 23 is installed and removed from that side of the breathing air duct 2 on which the inlet / outlet opening 4 is arranged.
• an external thread 20 is arranged on the breathing air channel 2 at this end region, which interacts with an internal thread 45 on the closure element 11.
• the flow axis 28 of the air passage space 26 in the region of the piston valve 6 coincides with the longitudinal axis 36 of the breathing air channel 2.
• the various components of the training device can be separated from one another in a simple manner by removing the connecting element 10 and the terminating element 11 and the connecting element 12.
• the breathing air channel 2 is simple in shape and has no complicated shaped elements which are difficult or impossible to clean.
• the valve body 23 is also shaped so that it can be optimally cleaned. This also applies to the other components that come into contact with breathing air, namely the mouthpiece 3, the connecting pipe 8 and, for example, the closure element 11.
• valve body 23 can be installed and removed in the simplest way, since it has no direct mechanical connection to the housing part 22 or breathing air channel 2. This leads to a considerable simplification of the cleaning and handling of the device.
• the arrangement according to the invention also makes it possible for every person who uses the training device to assign those parts which are contaminated with breathing air specifically, that is to say person-related.
• the casing 1 and the control device 14 can be used by different, ie several people, since it does not come into contact with breathing air. In the normal case, a superficial cleaning is sufficient.
• This embodiment according to the invention enables such breathing training devices to be used cost-effectively, particularly in therapeutic use, where several different people are treated in succession. For a new use of the breathing training device, all parts that come into contact with breathing air can be exchanged in a simple manner and the device is immediately available again.
• 3 shows a valve body 23 according to the invention, which is part of the piston valve 6.
• the guide part 25 is connected to the piston 24 on the one hand and the guide part 46 on the opposite side.
• the two guide parts 25 and 46 essentially consist of 4 symmetrically arranged ribs, between which there are flow channels 47, 48 for the air.
• the guide part 25 In the end region 41 of the guide part 25, which faces away from the piston 24, the guide part 25 has a larger diameter than the piston 24. Between the piston 24 and the end region 41, the diameter of the ribs of the guide part 25 is reduced and stop surfaces 49 are formed , The diameter of the ribs of the guide part 46 is also reduced compared to the piston 24.
• FIG. 4 shows a cross section through the breathing air channel 2 along the axis 36 according to FIG. 2.
• This illustration shows the force-generating means 29 which hold the valve body 23 in the sealing position or determine the opening forces for the piston valve 6 and in the area of the housing part 22 is arranged.
• the force-generating means 29 consist of magnetic elements, the valve body 23 containing a component 32 made of a magnetic material, and means with two components 34 made of a magnetic material are arranged in the region of the housing part 22 of the valve 6.
• these magnetic elements 32, 34 are positioned in a common radial plane 35 to the flow axis 28 of the air passage space 26.
• the two components 34 are permanent magnets, ie magnetic elements made of a magnetically hard material.
• the magnetic component 32 in the valve body 23 is also formed by a permanent magnet or consists of a magnetically hard material.
• the axes of the magnetic elements 32 and 34 run approximately parallel to the flow axis 28 and the pole arrangements are oriented identically.
• the two magnetic components 34 are arranged in the casing 1 symmetrically to the flow axis 28 and abut the housing part 22 of the piston valve 6.
• the magnetic component 32 is positioned in the piston 24 or valve body 23 approximately in the plane 35 and thus the valve body 23 is held in the sealing position.
• the acting magnetic forces are determined in a known manner so that the valve body 23 is only deflected from the sealing position in the direction of the arrows 31 at a desired underpressure or overpressure.
• electromagnets 33 in the casing 1 or in the area of the housing part 22 of the piston valve 6 instead of the permanent magnets 34, which are activated by electrical currents.
• the corresponding power supply and control signal supply takes place from the control unit 14 via the cable 13 and further connecting lines, not shown, in the casing 1.
• This arrangement makes it possible to change the opening forces for opening the valve, as can be expedient during strength training.
• the valve opening times can be influenced and controlled from the control unit. This may be desirable if the device is used professionally.
• a further possible embodiment also consists in the magnetic element being formed from a permanent magnet 32 in the valve body 23 and the magnetic elements being formed from a magnetically soft material, for example iron, in the housing part 1, an annular element advantageously being used.
• the magnetic component 32 in the valve body 23 consists of magnetically soft material, for example iron
• the two magnetic components 34 in the region of the valve housing 22 consist of a magnetically hard material, ie consist of a permanent magnet. All of these arrangements fulfill the desired functions according to the invention.
• Two sensors 37, 38 are arranged on both sides of the sealing position between the piston 24 and the sealing surface 27 on the housing part 22 at a distance from the sealing plane 35 in the casing housing 1.
• the same functions could also be recorded by reed sensors, optical sensors or pressure sensors.
• These sensors 37 or 38 determine whether the valve body 23 is in the opening position for breathing in fresh air or in the opening position for expelling breathing air through the opening 4.
• the opening position for the inflow of fresh air through the opening 4 is determined by a stop 42 at the end of the sealing surface 27 and a stop 49 on the ribs of the guide part 25. This opening position and the duration of the opening is detected by the sensor 37.
• the opening position of the valve body 23 for the outflow of used air through the opening 4 is determined by the end region 41 on the guide part 25 and the inner surface on the closing element 11, which forms an end stop 43.
• This opening position is assigned to the sensor 38, which determines the opening state and the duration of the opening.
• the valve body 23 slides in the air passage space 26, this sliding movement generating very little frictional loss.
• the arrangement according to the invention has the advantage that the forces required to deflect the valve body 23 from the sealing position into the opening position are not progressively increasing the further the body is deflected, but rather this force either remains constant or decreases.
• the resultant advantage is that when the holding force in the sealing position is exceeded, the valve body 23 is immediately deflected completely into the open position and the complete flow cross-section is thus released for the air.
• the throughflow quantities of air are thus determined in a sufficiently precise manner by the opening times of the piston valve 6 and no additional sensors for determining the CO 2 content of the air are necessary.
• FIG. 5 essentially shows the breathing air channel 2 and the piston valve 6 in a schematic representation.
• the casing 1 and the other attachments are not shown.
• the housing part 22 of the piston valve 6 is an integral part of the breathing air channel 2.
• the housing part 22 has the sealing surface 27 and the piston 24 is arranged accordingly on the valve body 23.
• the configuration of the valve body 23 and the sealing surface 27 corresponds to the embodiments according to FIGS. 3 and 2.
• the force-generating means 29 in this exemplary embodiment are not, however, by magnetic elements, but formed by the two coil springs 39 and 40. The forces of these two spiral springs 39 and 40 hold the valve body 23 in the sealing position and allow a deflection in the direction of the two arrows 31. This results in the same mode of operation as described for FIGS. 1 to 4.
• This embodiment can be used in certain cases where a device which is as inexpensive as possible is desired and a progressive increase in the opening forces on the valve body 23 can also be tolerated, ie a device with a lower working accuracy is permissible.
• the advantages of the piston valve according to the invention are still retained.
• the training device can also be equipped with two piston valves 6 'and 6 ", as is also shown schematically in FIG. 6.
• a breathing air channel 2' has two pipe branches 50, 51 branching off to the side, each of which has one at its outer end Have inflow opening 52 or an outflow opening 53.
• the breathing air channel 2 also has a branch pipe 9 which leads to the air bag 5.
• a valve body 23 is arranged in each of the two pipe sections 50, 51, the embodiment of which corresponds to the valve body according to FIG Both valve bodies 23 have a piston 24, in which a magnetic component in the form of a permanent magnet 32 is built in.
• the necessary sealing surface 27 ' which cooperates with the piston 24, is arranged on the inner surface of the tube pieces 50, 51.
• the valve 6 "in the pipe section 50 has the function of allowing fresh air to be sucked in via the opening 52.
• the opening position of the valve body 23 is determined by the sensor 37 and the opening time is also determined.
• the valve 6 'in the pipe section 51 has only the function of allowing used air to flow out through the opening 53, specifically when the air bag 5 is filled.
• the opening position and the opening time of the valve body 23 determined by the sensor 38.
• This arrangement with two piston valves 6 'and 6 "makes it possible to define different opening forces for the opening time for the intake of fresh air or for the opening time for the outflow of breathing air into the environment. This can be expedient for certain training and / or therapy programs and be of interest.
• the vital capacity is person-dependent and the respiratory limit is person and gender-dependent.
• the following procedure is necessary to calculate the respiratory rate of a specific person.
• the vital capacity (V c ) is measured in a known manner.
• the volume of the air bag 5 is set so that it is 50% of the vital capacity.
• the respiratory limit (MW) is determined according to the following function:
• a respiratory minute volume (AMV) is recommended for endurance training, which is 60% of the respiratory limit (MW).

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• Orthopedic Medicine & Surgery (AREA)
• Respiratory Apparatuses And Protective Means (AREA)

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• 2002
  • 2002-04-08 US US10/473,544 patent/US20040146842A1/en not_active Abandoned
  • 2002-04-08 AT AT02708122T patent/ATE361128T1/de active
  • 2002-04-08 JP JP2002579071A patent/JP3992620B2/ja not_active Expired - Fee Related
  • 2002-04-08 ES ES02708122T patent/ES2284824T3/es not_active Expired - Lifetime
  • 2002-04-08 AU AU2002242574A patent/AU2002242574A1/en not_active Abandoned
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  • 2002-04-08 EP EP02708122A patent/EP1377347B1/fr not_active Expired - Lifetime
  • 2002-04-08 WO PCT/CH2002/000194 patent/WO2002081034A2/fr not_active Ceased
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