• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Air drive device to provide assisted ventilation during spontaneous breathing. An air drive device for providing assisted ventilation during spontaneous breathing comprising a motor is described; a fan driven by the motor, and a housing that defines a housing for the fan. The housing is connectable through a single port of entry and exit to a respiratory mask, in which a pressure inside the housing is adjustable depending on the speed of rotation of the fan in such a way that, in use, an air flow of inspiration and an expiration air flow circulate substantially through the inlet and outlet port. Also disclosed is a kit comprising said air drive device and a respiratory mask. (Machine-translation by Google Translate, not legally binding)
    公开号:ES2585851A1
    申请号:ES201530458
    申请日:2015-04-07
    公开日:2016-10-10
    发明作者:Jaume PALOU FUSTÈ
    申请人:Tecn Biomedicas Para La Salud S L；Tecnicas Biomedicas Para La Salud Sl；
    IPC主号:
    专利说明:

    image 1
    DESCRIPTION Air drive device to provide assisted ventilation during spontaneous breathing
    The present disclosure relates to air driving devices suitable for providing assisted ventilation during spontaneous breathing, to be used, for example, during sleep.
    STATE OF THE PREVIOUS TECHNIQUE
    10 Continuous positive airway pressure (CPAP) devices are known to assist in the breathing of a patient whose respiratory capacity is diminished. Thus, for example, these devices are applicable to patients with obstructive sleep apnea (OSA) or other respiratory disorders, such as airflow resistance in the upper airways that cause snoring. The
    15 CPAP devices are basically used to supply air, or other breathable gas, under pressure to the airways of a patient.
    In general, conventional CPAP devices comprise a pressurized air generator that is arranged, for example, on the bedside table near the bed and that is connected to the power grid or to a large external battery. In addition, the pressurized air generator is normally connected to the patient through a long and flexible tube or conduit that transports the pressurized air from the air generator to an interface with the patient, for example, a respiratory mask used by the patient . This supplied air prevents episodes of upper airway collapse that
    25 block breathing in people with OSA or other respiratory disorders.
    The commonly used respiratory masks may comprise a nasal mask designed to fit over a patient's nose, or a full face mask designed to fit over the patient's nose and mouth. It is desirable that
    30 this adjustment is made safely to deliver the pressurized air without substantial leaks.
    These respiratory masks generally comprise a relatively rigid portion that defines a recessed opening cavity and that covers the patient's nose and / or mouth, and a soft portion, for example a pad, that separates the rigid portion of the patient's face to Make the contact comfortable. In addition, they are usually kept in place by, for example, straps attached to the rigid portion by connectors.
    image2
    Therefore, known conventional CPAP devices are usually very
    5 bulky and heavy, being therefore cumbersome to transport for people who require its use. In addition, they need to generate air at a sufficiently high pressure so that, in addition, they can travel the entire tube that connects the air generator with the mask, overcoming internal resistance of the tube. This usually brings considerable noise levels, especially annoying when the systems are used during the
    10 dream
    Currently and in order to reduce the internal resistance of the tube that connects the air generator with the mask, CPAP devices have been developed that comprise a mask and an air flow generator mounted on the mask itself or adapted to fit the body of the user, that is to say that they are connected to the mask by means of a tube of length less than 2 meters or even with a length of up to half a meter. Document US8844524 describes these devices, in which it is possible to reduce, at least in part, the resistance of the air inside the tube, thus also reducing, at least in part, some of the above-mentioned drawbacks. However, these systems
    20 need to be connected to the mains or to a large external battery.
    Thus, there is still a need to develop CPAP devices that are more versatile, less noisy and give the user a greater degree of mobility to improve their quality of life. 25 EXPLANATION OF THE INVENTION
    According to one aspect, an air driving device is provided to provide assisted ventilation during spontaneous breathing. The device 30 comprises a motor, a fan driven by the motor, and a housing defining a housing for the fan, the housing being connectable through a single inlet and outlet port to a respiratory mask, in which the pressure inside of the housing is adjustable according to a fan rotation speed, so that, in use,
    image3
    an inspiration air flow and an expiration air flow circulate substantially through the inlet and outlet port.
    According to this aspect, in use, that is, when the accommodation is connected (in
    5 fluid communication) to a respiratory mask and the respiratory mask is, in turn, adjusted or coupled to a patient, the inspired air flow driven by the ventilator circulates through the same inlet and outlet port as the airflow of expiration caused by the patient. This is possible because the pressure inside the housing is regulated, increasing or decreasing the speed of rotation of the fan as
    10 deals with inspiration or expiration air flow respectively. The fact of allowing the expiration air flow to pass through the same inlet and outlet port as the inspiration airflow eliminates the presence of an exhalation mouth, normally provided in the masks or in a portion of the inlet port and outlet for the expiration air outlet. This results in a reduction in the air flow driven by the
    15 fan since this fan-driven flow can only go its way to be inspired by the patient. In other words, the air driven by the fan does not decompose (bifurcate) in two (or more) ways, one towards the patient's nose and / or mouth and the other towards the exhalation mouth (s). This reduction in the air flow rate driven by the fan leads to lower energy consumption by the fan, which
    20 allows its feeding by small power sources such as, for example, a standard 2A and 5V converter or battery. This considerably improves the portability of the device giving the user greater autonomy. In addition, it entails a significant reduction in noise levels, thus improving the quality of life of users.
    25 In some examples, the input and output port may be configured to be connected to a mask without additional ventilation output. This ensures that there is no bifurcation of the inspiration air flow (fan driven air) and that the expiration air flow can only circulate through the device's inlet and outlet port as well as the inspiration airflow.
    In some examples, the input and output port may comprise a coupling element, for example, conical trunk. This type of coupling allows a tongue and groove coupling with virtually any type of mask available in the market that has a feeding port with cylindrical or truncated conical outlet / entrance, complementary to that of the input and output port.
    image4
    According to some examples, the input and output port may comprise
    5 circular sections whose diameter can be between 10 mm and 40 mm. In some of these cases, a tolerance of approximately 10% may be necessary, depending on the elastic properties of the material with which the mask ports and / or the drive device have been manufactured.
    10 According to more examples, the port of entry and exit may be a fitting of polymeric material. The material can be any solid material that has elastic properties such as, for example, rubber, rubber, silicone or the like.
    According to some examples, the fan can boost the air flow of inspiration
    15 at a pressure such that in use, within the mask, the inspiration air flow may have a pressure of between 0 and 30 cm H2O.
    In some examples, the fan may be a radial fan. The inventors have found that such fans lead to the greatest noise reductions,
    20 thus improving the quality of life of users. In other examples, axial or centrifugal fans can also be used.
    In some examples, the fan can be mounted inside the housing (or part of the housing) by means of a clip coupling system that allows easy assembly
    25 and disassembly. This enables relatively rapid disassembly and facilitates fan cleaning tasks. Fan cleaning is especially interesting due to the double circulation (inspiration air flow and expiration air flow) to which it is subjected. It is important to note that the expiration air flow normally comprises a greater number of contaminating particles.
    In some examples, the device may further comprise an electronic control and power board that can be attached to the housing. The fact that it is attachable (and detachable) to the housing, allows to completely disassemble the mechanical part of the electronics that controls the device, which facilitates the cleaning of the mechanical part (the fan and the input and output port), being able to carry out even in a domestic dishwasher.
    image5
    In some examples, the electronic control and power board may comprise a
    5 communications interface such as a USB port (for example in versions 2.0 or 3.0) and / or a power port that can be attached to a battery or a standard power converter, for example 2A and 5V. This type of feeding is possible due to the reduction of the air flow driven by the fan substantially as described above. That is, because the inspiration airflow circulates practically through
    10 a single inlet and outlet port (that is, it does not fork for example towards an exhalation mouth), the losses of air flow driven by the fan are substantially reduced, thereby substantially (and at least partially) reducing the necessary power to activate it.
    15 In more examples, the electronic control and power board can comprise a microprocessor which in its memory allows, for example, to register and store values measured by sensors. This information is very useful for the specialist who assesses the patient's clinical condition. In addition, this information is easily removable from memory to a computer through the same USB port (or any other type of user interface).
    20 communications) provided on the board.
    According to some examples, the device may further comprise one or more sensors selected from the group consisting of CO2, O2, temperature, pressure, humidity and flow sensors, the sensors being directly coupled to the input port. and exit. This improves the accuracy with which the fan speed is regulated. The provision of one or more of these sensors improves the detection of expiration (exhaled) air flow either because, for example, the presence of CO2 is detected or because an increase in temperature is detected. Alternatively with a combination of the parameters measured by two or more of these
    30 sensors it is possible to further increase the precision with which the speed of rotation of the ventilator is adjusted to adapt the system to the heart rate of each patient, that is to say the inspiration air flow and the expiration air flow.

    In some examples, the sensors may comprise a "bi-level" adaptive control. In this way, the duration of each phase (inspiration / expiration) with its corresponding level of pressure can be adjusted independently.
    5 In some examples, the sensors may be connected to the electronic control and power board.
    According to another aspect, a kit is provided comprising a respiratory mask and an air impeller device as described above, coupled to the mask a
    10 through the port of entry and exit. According to some examples, the kit may comprise a mask without ventilation openings. In more examples, when the masks comprise one or more ventilation openings it is envisioned that they may be clogged or sealable.
    15 According to some examples, the pressure inside the housing of the impeller device can be adjustable according to a fan rotation speed such that, in use, an inspiration air flow and an expiration air flow can circulate substantially only through the input and output port of the drive device.
    In some examples, the mask may comprise an electrode-like conductive adhesive strip, arranged in an area of the mask, configured to fit the patient. This allows the patient's heart rate to be measured.
    BRIEF DESCRIPTION OF THE DRAWINGS
    25 Particular embodiments of the present disclosure will be described below by way of non-limiting example, with reference to the accompanying drawings, in which:
    Figures 1a and 1b show two different perspectives of an air drive device
    30 according to an example; Figure 2 shows a side view of Figure 1b; and Figure 3 shows a partial section of the driving device of Figure 1a.
    image6
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    DETAILED EXHIBITION OF MODES OF EMBODIMENT In Figures 1a and 1b two perspectives of an air impeller 100 according to an example are shown. Figure 2 shows a side view of the same example. In Figures 1b and 2, the air impeller device 100 is shown uncoupled from a respiratory mask 200 and also decoupled from an electronic control and power plate
    20. In Figure 1a, on the other hand, the electronic control and power board 20 is shown coupled to the drive device 100.
    The driving device 100 can comprise a fan 15 provided inside a housing (reference 101 of Figure 3) that can be defined by a housing 10. The fan can be driven by a motor (not visible) which in turn can be located in the electronic board 20. The device 100 may comprise a single input and output port 11 attachable to the respiratory mask 200. In some examples, the input and output port 11 may be in the form of a fitting and its free end 111 may comprise a termination conical trunk which, in turn, can comprise a plurality of annular projections 112. In alternative examples, other types of projections can be provided, for example in the form of a thread or axial, even also discrete protrusions or bayonet connection. In addition, the free end 111 of the inlet and outlet port 11 (fitting in the example of the figures) can be complementary and / or allow its coupling with a coupling element 201 provided in the respiratory mask 200 adjustable to a patient.
    In more examples, the free end of the input and output port may have internal projections as long as the coupling element of the mask is external or vice versa. As shown in the example of the figures, the free end 111 of the fitting can have a conical trunk shape. This form allows an easily combinable coupling with, for example, a cylindrical coupling (provided in the mask), which improves the coupling capacity of the air impeller device with virtually any existing mask on the market. This versatility allows the user to use a mask with which he was already familiar and "at ease" and attach it to an air impeller device as described. The trunk-conical shape gives good results, in addition, in terms of tightness and axial stability between the two components to be coupled (mask and air impeller in this case). It should be mentioned that in case the mask used by the patient included an outlet port for the expiration air flow, this port should be capable of being sealed or simply covered, of
    5
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    so that airflow leaks driven by the fan (inspiration air) were reduced. In this way it is achieved that practically all of the air driven by the fan can become inspired by the user, thus preventing part of this air driven by the fan from branching into, for example, a ventilation opening. The passage of both flows (inspiration air and expiration air) through the same port is possible because the fan speed is controlled.
    In the example of the figures, the free end 111 of the fitting can comprise a conical trunk shape with annular projections 112, while the coupling element 201 of the mask 200 can comprise a cylindrical shaped recess with at least one annular projection 202 for the tongue and groove coupling with at least one of the annular projections 112 of the fitting. In other examples, other similar coupling elements that result in a tongue and groove type coupling between the respiratory mask and the inlet and outlet port of the air impeller can also be provided.
    In the example of figure 1b it can also be seen that the fitting can comprise two holes 113 intended to receive one sensor each. In Figure 2 it can be seen that in this example, the electronic control and power board 20 can comprise three sensors 21, 22, 23. The sensors 21 and 22 can be coupled in the holes 113 of the fitting and the sensor 23 can be coupled in another hole (not shown) provided in the fitting or in the housing itself 10. In more examples, another number of sensors may be provided configured to be coupled to the input and output port 11 or to the housing 10. Even in more examples, one or no sensor can be provided.
    As described above, the sensors can be selected from the group consisting of CO2, O2, temperature, pressure, humidity and flow sensors. These sensors improve the accuracy and speed with which it is detected if the air flow that circulates through the inlet and outlet port is inspiration or expiration airflow. Normally, one or more of these parameters (CO2, O2, temperature, pressure, humidity) measured by the selected sensors of this group change considerably depending on whether it is fan driven air (inspiration air flow) or air flow of expiration (air exhaled by the patient). In addition, the provision of one or more of these sensors allows defining a respiratory rate for each patient. This information can in turn be entered into a microprocessor to program the speed of rotation of the
    5
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    ventilator depending on a predefined respiratory rate for a patient, for example, to program its use during the night. In some cases, the microprocessor may comprise a memory in which it can store all the information provided by the sensors. This information can be very useful for the specialist who controls the patient's health. The downloading of the information can in turn be done through the USB port (s) provided on the control board for power. In other examples, the microprocessor may be configured to receive information from one or more sensors and from this information, make decisions about the operation of the fan, that is to increase or reduce the speed of rotation of the fan.
    In addition, in some examples, the sensors may comprise an adaptive "bilevel" control. This control allows you to independently adjust the duration of each phase (inspiration / exhalation) with its corresponding level of pressure / speed of rotation of the fan.
    In the example of figure 2 it can also be seen that the housing 10 can comprise a gear 12 (or other known coupling element) for mounting the electronic control and power plate 20 in the housing 10. For its part, the electronic board 20 may be provided with another crown type coupling 24 or similar, complementary to the gear 12 or other type of coupling element provided in the housing. Furthermore, the control plate 12 and the housing 10 can be adjusted by means of clip-type 25 couplings. These couplings allow the assembly and disassembly of the electronic board in the housing to, for example, carry out cleaning tasks and therefore allows that the fan, housed inside the housing, be cleaned, for example, in a dishwasher.
    In addition, the housing 10 may be provided with clips 13 or other coupling system for mounting, for example, a cover 14. The lid, in turn, may be provided with a grill or other type of air inlet 16 of supply to the fan 15 that is housed inside the housing 10. The air inlet 16, in turn, may comprise an air filter (not shown) to prevent particles or impurities present in the air from accessing the fan.
    Figure 3 shows a partial section of Figures 1a in which the air impeller device 100 is shown uncoupled from the respiratory mask 200, but coupled to the electronic control and feeding plate 20. In this figure the path is schematized with arrows of an inspiration air flow (arrow A) and an expiration air flow (arrow B), and it is shown that both circulate practically only through the inlet and outlet port (11).
    image7
    5 Although only some particular embodiments and examples of the invention have been described herein, the person skilled in the art will understand that other alternative embodiments and / or uses of the invention are possible, as well as obvious modifications and equivalent elements. In addition, the present invention encompasses all possible combinations of
    10 the concrete embodiments that have been described. The scope of the present invention should not be limited to specific embodiments, but should be determined only by an appropriate reading of the appended claims.
    权利要求:
    Claims (13)
    [1]
    image 1
    1. Air driving device (100) to provide assisted ventilation during spontaneous breathing, characterized by the fact that it comprises:
    5  an engine;  a fan (15) driven by the motor, and  a housing (10) defining a housing (101) for the fan (15), the
    housing (101) connectable through a single input and output port (11) to a respiratory mask (200),
    10 in which a pressure inside the housing (101) is adjustable according to a fan rotation speed (15) such that, in use, an inspiration air flow (A) and an expiration air flow (B) circulate substantially through the input and output port (11).
    Device according to claim 1, wherein the input and output port (11) is configured to be connected to a mask without ventilation outlet.
    [3]
    3. Device according to any one of claims 1 or 2, wherein the port of
    Inlet and outlet (11) comprises a trunk-conical coupling element. twenty
    [4]
    Device according to any one of claims 1 to 3, wherein the input and output port (11) comprises circular sections whose diameter is between 10 mm and 40 mm.
    Device according to any one of claims 1 to 4, wherein the input and output port (11) is a fitting of polymeric material.
    [6]
    6. Device according to any one of claims 1 to 5, wherein the fan (15)
    It drives the inspiration air flow (A) to a pressure such that in use, within the mask, the inspiration air flow (A) has a pressure between 0 and 30 cm H2O.
    [7]
    7. Device according to any one of claims 1 to 6, wherein the fan (15) is a radial fan.
    [8]
    8. Device according to any one of claims 1 to 7, wherein the fan (15) is mounted inside the housing (101) by means of a clip coupling system that allows its disassembly.
    12
    image2
    Device according to any one of claims 1 to 8, further comprising an electronic control and power board (20) attachable to the housing (10).
    [10]
    10. Device according to claim 9, wherein the electronic control board and
    Power comprises a communications interface. 10
    [11]
    eleven. Device according to any one of claims 9 or 10, wherein the electronic control and power board comprises a microprocessor.
    [12]
    12. Device according to any one of claims 1 to 11, further comprising
    One or more sensors selected from the group consisting of CO2, O2, temperature, pressure, humidity and flow sensors, the sensors being coupled to the input and output port.
    [13]
    13. Device according to claim 12, wherein the sensors comprise a "bi-level" adaptive control.
    [14]
    14. Device according to any one of claims 12 or 13, wherein the sensors are connected to the electronic control and power board.
    15. Kit comprising a respiratory mask and an air impeller according to any one of claims 1 to 14 coupled to the mask through the inlet and outlet port.
    [16]
    16. Kit according to claim 15, wherein the mask is a mask without ventilation openings.
    [17]
    17. Kit according to claim 15 or 16, wherein the pressure inside the housing (101) is adjustable as a function of a fan rotation speed (15) such that, in use,
    13
    image3
    an inspiration air flow (A) and an expiration air flow (B) circulate substantially only through the inlet and outlet port (11).
    14
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    法律状态:
    2015-10-29| PC2A| Transfer of patent|Owner name: TECNICAS BIOMEDICAS PARA LA SALUD, S.L. Effective date: 20151023 |
    2017-06-14| FG2A| Definitive protection|Ref document number: 2585851 Country of ref document: ES Kind code of ref document: B1 Effective date: 20170614 |
    优先权:
    申请号 | 申请日 | 专利标题
    ES201530458A|ES2585851B1|2015-04-07|2015-04-07|AIR DRIVING DEVICE FOR PROVIDING ASSISTED VENTILATION DURING SPONTANEOUS BREATHING|ES201530458A| ES2585851B1|2015-04-07|2015-04-07|AIR DRIVING DEVICE FOR PROVIDING ASSISTED VENTILATION DURING SPONTANEOUS BREATHING|
    EP16715287.5A| EP3280477A1|2015-04-07|2016-04-07|Air impeller device for providing assisted ventilation during spontaneous breathing|
    US15/564,975| US20180110946A1|2015-04-07|2016-04-07|Air impeller device for providing assisted ventilation during spontaneous breathing|
    CN201680033332.7A| CN107810026A|2015-04-07|2016-04-07|For providing the air propulsion device of assisted ventilation during autonomous respiration|
    PCT/EP2016/057575| WO2016162395A1|2015-04-07|2016-04-07|Air impeller device for providing assisted ventilation during spontaneous breathing|
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