CN219231064U - Portable positive pressure breathing machine and air pressure calibration device - Google Patents
Portable positive pressure breathing machine and air pressure calibration device Download PDFInfo
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- CN219231064U CN219231064U CN202223313382.2U CN202223313382U CN219231064U CN 219231064 U CN219231064 U CN 219231064U CN 202223313382 U CN202223313382 U CN 202223313382U CN 219231064 U CN219231064 U CN 219231064U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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Abstract
The utility model discloses a portable positive pressure breathing machine and an air pressure calibration device, which mainly have the design concept that a brushless direct current blower is used as a core air supply element, the actual demand of a user is oriented, the adjustment of different air supply pressures is realized by an electric control pressure regulating technology, the working noise is reduced by adopting a flexible multipoint supporting means, meanwhile, components are reasonably distributed, and particularly, the detachable component structure is adopted, so that the whole machine structure is easy to carry in size, and the breathing machine is manufactured by combining with optional economical and easily obtained materials, so that the problem of shortage of breathing machine equipment can be solved while the economical efficiency is met. Furthermore, the utility model also provides a scheme for calibrating the fan voltage by multiple gears, so that the breathing machine has multiple-gear adjusting functions suitable for different output air pressure requirements.
Description
Technical Field
The utility model relates to the field of breathing machinery, in particular to a portable positive pressure breathing machine and an air pressure calibration device.
Background
In clinical medicine, respiratory disorders are often threatened to the life of patients due to various diseases, and a respirator is an important medical device capable of improving respiratory disorders, preventing respiratory failure and even saving the life of patients suffering from lung diseases, and is an automatic active air supply treatment means which plays an important role in medical emergency, pulmonary obstruction, snoring and the like.
In the prior art relating to ventilators, the following problems currently exist:
the ventilator is used for pressurizing air through a fan and transmitting the air into the oral cavity or the nasal cavity of a patient through a pipeline, and the parts are sensitive, so that discomfort of the patient is necessarily caused when the air pressure or the air flow exceeds a certain range. Therefore, controlling the air supply pressure and flow rate of the blower is a fundamental approach to solving the problem.
Therefore, the fans in the breathing machine all adopt high-speed motors as driving elements, the noise caused by blade friction and structural vibration is usually larger during working, the noise is more obvious especially during night rest, and how to effectively reduce noise is an important problem to be studied urgently. There are two noise reduction modes in the prior art: (1) The noise reduction is usually realized by adopting a thick vibration isolation material, but the volume of the device is easily increased, and the cost is increased; (2) Noise is reduced by improving the air path structure, and the structural design technical requirement is high.
The volume and the weight of the existing breathing machine are large due to the comprehensive factors, the existing breathing machine is inconvenient to carry, and the patient with chronic pulmonary obstruction and asthma can need the breathing machine for assistance at any time when going out in daily life, so that the utility model considers that the reasonable design and improvement of the structure of the breathing machine are key ideas for improving portability.
Disclosure of Invention
In view of the foregoing, the present utility model is directed to a portable positive pressure ventilator and an air pressure calibration device, so as to solve the above-mentioned technical problems.
The technical scheme adopted by the utility model is as follows:
in a first aspect, the present utility model provides a portable positive pressure ventilator comprising: the air circuit system is used for controlling the fan system to provide air flow with preset air pressure and outputting the air flow through the air circuit system;
the fan system comprises a brushless direct current blower, a flexible supporting plate and a motor driver, wherein the motor driver is used for driving the brushless direct current blower to operate, and one surface of the brushless direct current blower is provided with an air inlet; the flexible support plate is arranged on the other surface of the brushless direct current blower opposite to the air inlet and is used for fixedly connecting the brushless direct current blower with the shell main body;
the electric control system comprises an air pressure control component, wherein the air pressure control component is used for changing output voltage by adjusting a preset gear so as to regulate and control the rotating speed of the brushless direct current blower through the motor driver;
the air path system comprises an air outlet joint, a hose, a filtering breathing nozzle and air inlet filter cotton; an air inlet grille is arranged on the shell main body at a position corresponding to the air inlet, and the air inlet filter cotton is arranged at the air inlet grille; the air outlet connector is arranged on the shell main body, one end of the air outlet connector is connected with the air outlet of the brushless direct current blower, and the other end of the air outlet connector is connected with the air inlet end of the hose; the air outlet end of the hose is connected with the filter tip;
wherein, hose and filter and breathe the suction nozzle all have detachable construction.
In at least one possible implementation, the air pressure control component includes: the circuit board is integrated with a plurality of resistors corresponding to the gear of the band switch;
and the code disc is arranged on the band switch and is provided with scale values corresponding to each gear.
In at least one possible implementation manner, the flexible supporting plate is of an annular sheet structure and is made of elastic resin.
In at least one possible implementation manner, the brushless direct current blower is connected with the flexible supporting plate through a plurality of fixing bosses formed on the brushless direct current blower, and the gravity center of the brushless direct current blower is located at the center position of the fixing bosses.
In at least one possible implementation manner, the electric control system further comprises a battery and a charging socket, wherein the battery is respectively connected with the air pressure control component, the motor driver and the charging socket through leads.
In a second aspect, the present utility model provides an air pressure calibration device, including: the device comprises a direct current power supply, an adapter, a transparent water tank and a calibration tube;
the direct current power supply is used for providing electric energy for a motor driver of the breathing machine and a brushless direct current blower;
the transparent water tank is used for containing test water exceeding a preset depth;
the calibration tube is arranged in the transparent water tank, and is provided with scale marks in advance along the axis direction, and the scale range corresponds to the preset depth;
and two ends of the adapter are respectively connected with a filtering breathing nozzle of the breathing machine and the calibration pipe.
In at least one possible implementation manner, the direct current power supply adopts an adjustable voltage-stabilizing direct current power supply.
In at least one possible implementation manner, the calibration tube adopts a transparent round tube.
In at least one possible embodiment, the connection points of the adapter to the filter mouthpiece and to the calibration tube are airtight.
The main design concept of the utility model is that the brushless direct current blower is used as a core air supply element, the utility model is oriented to the actual demands of users, the adjustment of different air supply pressures is realized by the electric control pressure regulating technology, the flexible multipoint supporting means is adopted to reduce the working noise, meanwhile, the components are reasonably arranged, the detachable component structure is adopted to lead the whole structure size to be easy to carry, and the breathing machine is manufactured by combining with the optional materials which are economical and easy to obtain, so that the problem of the shortage of breathing machine equipment can be solved while the economical efficiency is met. Furthermore, the utility model also provides a scheme for calibrating the fan voltage by multiple gears, so that the breathing machine has multiple-gear adjusting functions suitable for different output air pressure requirements.
Drawings
For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, the present utility model will be further described with reference to the accompanying drawings, in which:
fig. 1 is a schematic main body diagram of a portable positive pressure ventilator according to an embodiment of the present utility model;
FIG. 2 is a perspective view of a main body of a portable positive pressure ventilator according to an embodiment of the present utility model;
FIG. 3 is a schematic diagram of a blower system of a portable positive pressure ventilator according to an embodiment of the present utility model;
FIG. 4 is a rear view of a portable positive pressure ventilator provided in an embodiment of the present utility model;
fig. 5 is a schematic diagram of connection between an air pressure calibration device and a positive pressure ventilator according to an embodiment of the present utility model.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.
The present utility model proposes an embodiment of a portable positive pressure ventilator, specifically as shown in fig. 1 to 4, comprising: the air path system, and fan system and electrical control system within the housing body 10 for controlling the fan system to provide an air flow having a predetermined air pressure and to output the air flow through the air path system, such as into the patient's mouth, to provide respiratory support to the patient.
The fan system is positioned at the upper half part of the breathing machine and comprises a brushless direct current blower 1, a flexible supporting plate 2 and a motor driver 3, wherein the brushless direct current blower 1 is fixed at the upper part of the shell main body 10, the motor driver 3 is fixed below the brushless direct current blower 1 and is used for driving the brushless direct current blower 1 to operate, and an air inlet 1-1 is arranged at the back surface of the brushless direct current blower 1; the flexible support plate 2 is installed on the front surface of the brushless direct current blower 1, and the flexible support plate 2 is used for connecting and fixing the brushless direct current blower 1 and the shell main body 10.
In actual operation, the brushless dc blower 1 may be connected to the flexible support plate 2 through a plurality of fixing bosses formed thereon, and the center of gravity of the brushless dc blower 1 may be located at the center position of the plurality of fixing bosses. Specifically, three fixing bosses may be provided on the front surface of the brushless dc blower 1, a first mounting hole (not shown) is provided at the center of each fixing boss, a second mounting hole 2-1 is provided at a corresponding position of the flexible support plate 2, so that the flexible support plate 2 and the brushless dc blower 1 may be fixedly connected by using, for example, three self-tapping screws of M2.5×8 specifications, and a plurality of third mounting holes 2-2 for being fixedly connected with the housing main body 10 are further provided on the flexible support plate 2.
As schematically shown, the flexible support plate 2 preferably has a circular sheet-like structure and is made of a resin material having elasticity, so that vibration and noise generated when the brushless dc blower rotates at a high speed can be significantly reduced.
The electric control system comprises an air pressure control part 4, wherein the air pressure control part 4 is used for changing output voltage by adjusting a preset gear so as to regulate and control the rotating speed of the brushless direct current blower 1, and further obtain specific air pressure meeting the use requirement. Specifically, the air pressure control part 4 includes a band switch and a code wheel 14 disposed outside the housing main body 10, and a circuit board disposed inside the housing main body 10, on which a plurality of resistors (constituting potentiometers) corresponding to the gear positions of the band switch are integrated; the code wheel 14 is mounted on the band switch, and is provided with scale values corresponding to each gear.
In actual operation, a band switch with six gears can be selected according to the need, but not limited to, the value of the resistor can be determined after calibration according to the power required by the brushless direct current blower, then a plurality of corresponding resistors are welded on a circuit board according to the calibrated resistance and connected with the band switch, and a specific calibration scheme of an air pressure control component with six gears is adopted for schematic description and is not repeated herein; it should be added here that, in implementation, the circuit board may be fixed in the middle part of the main body of the casing and below the motor driver, the above-mentioned band switch may use a knob mechanism, and by rotating the switch to adjust the output voltage of the air pressure control component, corresponding to the knob form, the above-mentioned code wheel 14 may use a circular ring structure with reference to the drawings, so that the user can adjust the knob to the corresponding scale according to the required air pressure.
In addition, the electric control system further comprises a battery 5 and a charging jack 12 (which can be mounted on the back of the respirator), the battery 5 is preferably a 24v 3000mah rechargeable lithium battery, and the battery 5 is respectively connected with the air pressure control component, the motor driver and the charging jack 12 through leads.
Continuing the previous, the air path system comprises an air outlet joint 6, a hose 7 (made of silica gel), a filtering breathing nozzle 8 and air inlet filter cotton. The back of the shell main body 10 is provided with an air inlet grille 9 corresponding to the air inlet 1-1 of the brushless direct current blower 1, and the air inlet filter cotton is arranged at the air inlet grille 9, so that noise generated by air flow can be reduced to a large extent, primary filtration of external air can be achieved, the health of a patient is facilitated, and the service life of the respirator can be prolonged.
The air outlet connector 6 is arranged on the shell main body 10, one end of the air outlet connector is connected with the air outlet 1-2 of the brushless direct current blower 1, and the other end of the air outlet connector is connected with the air inlet end of the hose 7; the air outlet end of the hose 7 is connected with the filter tip, wherein the hose can be provided with different length specifications, such as three specifications of 45cm, 60cm and 90cm, and can be selected according to actual needs.
It may be noted that the hose 7 and the filtering mouth 8 have detachable structures (the hose is detachable from the filtering mouth and the main body of the respirator, respectively), so that the respirator is suitable for carrying about to improve portability, and in addition, when the respirator is in shortage, a user can realize the sharing of the respirator only by connecting the hose and the filtering mouth.
Based on this, in some embodiments of the present utility model, the battery, the brushless dc blower, the potentiometer, the motor driver, and other components may be specifically selected and designed for portability, for example, the main body of the respirator is selected to be 165mm long by 77mm wide by 53mm thick, and the weight of the whole machine is ensured to be 650g or less by selecting each component, so that the portability effect may be greatly improved.
For the calibration of the output air pressure regulation of the breathing machine, the utility model also provides an air pressure calibration device matched with the embodiment of the breathing machine, as shown in fig. 5, which comprises: the direct current power supply 13-1, the adapter 13-2, the transparent water tank 13-3 and the calibration tube 13-4;
the DC power supply 13-1 is used for providing electric energy for a motor driver of the breathing machine and a brushless DC blower, and preferably adopts an adjustable voltage-stabilizing DC power supply, and the voltage adjustment range is 0-30V;
the transparent water tank 13-3 is used for containing test water (clean water) exceeding a preset depth (such as 12 cm);
the calibration tube 13-4 is arranged in the transparent water tank 13-3, and is provided with scale marks along the axis direction, wherein the scale range corresponds to the preset depth (such as 0-12 cm), and in addition, the calibration tube 13-4 is preferably a transparent circular tube;
the two ends of the adapter 13-2 are respectively connected with the filtering breathing nozzle of the breathing machine and the calibration pipe, and the air tightness is achieved.
Based on the calibration scheme described above, the operating state of this ventilator example may be referred to as follows: the air pressure control part is preset into a 6-gear working state, and a 0 gear is a neutral gear, namely no voltage is output; the 1 st to 5 th calibration is that the generated air pressure respectively corresponds to water columns of 5cm, 6cm, 8 cm, 10cm and 12cm on the calibration tube; and scales 0, 1, 2, 3, 4 and 5 corresponding to the gears on the code wheel of the air pressure control component. Like this, through adjusting the gear of atmospheric pressure control part in order to change output voltage, and then adjust brushless direct current air-blower's rotational speed to obtain the atmospheric pressure that accords with patient's demand, because children and adult, symptom or light and heavy degree are different, different patients need different atmospheric pressures: for example, light and child patients require air pressures of 5-6cm of water, moderate and larger patients require 8-10cm of water, and severe patients require 12cm of water. Thus, the patient adjusts the air pressure control part knob according to the doctor's advice or the self demand to make the breathing machine provide corresponding and moderate air pressure.
In summary, the main design concept of the utility model is to use the brushless dc blower as the core air supply element, facing the actual requirement of the user, assisting in realizing adjustment of different air supply pressures by using the electric control pressure regulating technology, adopting the flexible multipoint supporting means to reduce working noise, and reasonably arranging the components, especially adopting the detachable component structure to make the whole structure size easy to carry, and combining with the optional economical and easily available materials to manufacture the respirator, so as to solve the problem of shortage of the respirator equipment while meeting the economical requirement. Furthermore, the utility model also provides a scheme for calibrating the fan voltage by multiple gears, so that the breathing machine has multiple-gear adjusting functions suitable for different output air pressure requirements.
In the embodiments of the present utility model, "at least one" means one or more, and "a plurality" means two or more. "and/or", describes an association relation of association objects, and indicates that there may be three kinds of relations, for example, a and/or B, and may indicate that a alone exists, a and B together, and B alone exists. Wherein A, B may be singular or plural. The character "/" generally indicates that the context-dependent object is an "or" relationship. "at least one of the following" and the like means any combination of these items, including any combination of single or plural items. For example, at least one of a, b and c may represent: a, b, c, a and b, a and c, b and c or a and b and c, wherein a, b and c can be single or multiple.
The construction, features and effects of the present utility model are described in detail according to the embodiments shown in the drawings, but the above is only a preferred embodiment of the present utility model, and it should be understood that the technical features of the above embodiment and the preferred mode thereof can be reasonably combined and matched into various equivalent schemes by those skilled in the art without departing from or changing the design concept and technical effects of the present utility model; therefore, the utility model is not limited to the embodiments shown in the drawings, but is intended to be within the scope of the utility model as long as changes made in the concept of the utility model or modifications to the equivalent embodiments do not depart from the spirit of the utility model as covered by the specification and drawings.
Claims (9)
1. A portable positive pressure ventilator, comprising: the air circuit system is used for controlling the fan system to provide air flow with preset air pressure and outputting the air flow through the air circuit system;
the fan system comprises a brushless direct current blower, a flexible supporting plate and a motor driver, wherein the motor driver is used for driving the brushless direct current blower to operate, and one surface of the brushless direct current blower is provided with an air inlet; the flexible support plate is arranged on the other surface of the brushless direct current blower opposite to the air inlet and is used for fixedly connecting the brushless direct current blower with the shell main body;
the electric control system comprises an air pressure control component, wherein the air pressure control component is used for changing output voltage by adjusting a preset gear so as to regulate and control the rotating speed of the brushless direct current blower through the motor driver;
the air path system comprises an air outlet joint, a hose, a filtering breathing nozzle and air inlet filter cotton; an air inlet grille is arranged on the shell main body at a position corresponding to the air inlet, and the air inlet filter cotton is arranged at the air inlet grille; the air outlet connector is arranged on the shell main body, one end of the air outlet connector is connected with the air outlet of the brushless direct current blower, and the other end of the air outlet connector is connected with the air inlet end of the hose; the air outlet end of the hose is connected with the filter tip;
wherein, hose and filter and breathe the suction nozzle all have detachable construction.
2. The portable positive pressure ventilator of claim 1, wherein the pneumatic pressure control means comprises: the circuit board is integrated with a plurality of resistors corresponding to the gear of the band switch;
and the code disc is arranged on the band switch and is provided with scale values corresponding to each gear.
3. The portable positive pressure ventilator of claim 1, wherein the flexible support plate is of annular sheet-like construction and is made of a resilient resin material.
4. The portable positive pressure ventilator of claim 1, wherein the brushless dc blower is connected to the flexible support plate by a plurality of fixing bosses formed thereon, and wherein the center of gravity of the brushless dc blower is located at a center position of the plurality of fixing bosses.
5. The portable positive pressure ventilator of any one of claims 1-4, wherein the electrical control system further comprises a battery and a charging jack, the battery being connected to the pneumatic control component, the motor driver, and the charging jack, respectively, by wires.
6. An air pressure calibration device for a portable positive pressure ventilator of any of claims 1-5, comprising: the device comprises a direct current power supply, an adapter, a transparent water tank and a calibration tube;
the direct current power supply is used for providing electric energy for a motor driver of the breathing machine and a brushless direct current blower;
the transparent water tank is used for containing test water exceeding a preset depth;
the calibration tube is arranged in the transparent water tank, and is provided with scale marks in advance along the axis direction, and the scale range corresponds to the preset depth;
and two ends of the adapter are respectively connected with a filtering breathing nozzle of the breathing machine and the calibration pipe.
7. The air pressure calibration device of claim 6, wherein the dc power source is an adjustable regulated dc power source.
8. The air pressure calibration device according to claim 6, wherein the calibration tube is a transparent round tube.
9. The air pressure calibration device according to claim 7 or 8, wherein the joint of the adapter, the filter mouthpiece and the calibration tube is airtight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223313382.2U CN219231064U (en) | 2022-12-05 | 2022-12-05 | Portable positive pressure breathing machine and air pressure calibration device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223313382.2U CN219231064U (en) | 2022-12-05 | 2022-12-05 | Portable positive pressure breathing machine and air pressure calibration device |
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| Publication Number | Publication Date |
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| CN219231064U true CN219231064U (en) | 2023-06-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202223313382.2U Active CN219231064U (en) | 2022-12-05 | 2022-12-05 | Portable positive pressure breathing machine and air pressure calibration device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117159862A (en) * | 2023-09-14 | 2023-12-05 | 广州蓝仕威克医疗科技有限公司 | Automatic feedback ventilation method for cardiopulmonary resuscitation airway pressure and breathing machine |
-
2022
- 2022-12-05 CN CN202223313382.2U patent/CN219231064U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117159862A (en) * | 2023-09-14 | 2023-12-05 | 广州蓝仕威克医疗科技有限公司 | Automatic feedback ventilation method for cardiopulmonary resuscitation airway pressure and breathing machine |
| CN117159862B (en) * | 2023-09-14 | 2024-05-07 | 广州蓝仕威克医疗科技有限公司 | Automatic feedback ventilation method for cardiopulmonary resuscitation airway pressure and breathing machine |
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