KR102176244B1 - Air supply device for ventilator - Google Patents

Abstract

The present invention is to provide an air supply device for an artificial respirator capable of automatically pumping an air bag, pressurizing with a constant force, controlling the number of breathing, and adjusting the amount of breathing appropriate for adults and infants. More specifically, the present invention comprises: a main body in which a semicircular mounting groove is provided on an upper surface thereof to accommodate the airbag of the artificial respirator, and a space part having a predetermined size is provided inside thereof at one side of the mounting groove; a circular crank plate rotatably installed in the space part, and forming a crank pin spaced apart from the center; a driving means connected to the center of the crank plate for drive rotation; and a pressurizing means connected to include the crank pin and converting a rotational motion of the crank plate into an up-and-down reciprocating motion to pressurize and pump the airbag with a predetermined pressure.

Description

Air supply device for ventilator {AIR SUPPLY DEVICE FOR VENTILATOR}

The present invention relates to a manual ventilator that allows air or gas necessary for breathing to enter and exit the lungs to allow artificial breathing control, and more particularly, to automatically pump the air bag of the manual ventilator. It relates to an air supply device for a ventilator.

In general, a ventilator is a means of artificially supplying a mixed gas of oxygen and air to a patient in order to maintain life until the patient recovers. Recently, the lungs caused by pressure while maintaining comfort to the patient during artificial respiration. Research is ongoing to minimize the injuries and structural damage to the airways.

A passive ventilator is a breathing aid that is given and used to provide artificial respiration to a patient in an emergency situation such as cardiopulmonary resuscitation or acute respiratory failure or a surgical environment requiring general anesthesia.

However, the method of creating artificial respiration by manually applying pressure to an air bag by a user using a manual respirator, the method of applying pressure differs depending on the user, and the physical characteristics such as the size of the hand and the grip strength are various, so that it is continuously constant. It is very difficult to provide respiratory volume.

Moreover, there is a discomfort that the medical staff must continuously pressurize the air bag and pump it by the patient's side, and it is divided into adult and infant use, so all respirators had to be prepared.

In recent years, the use of ventilators has increased rapidly due to Corona 19, and accordingly, a shortage of ventilators as well as a shortage of medical staff has been reached.

Therefore, there is a problem in that countries around the world are trying to develop an automatic pumping device for a ventilator, but the design is complicated and it is a burden to use in the field as a cause of the increase in production and manufacturing cost.

Republic of Korea Patent Publication No. 10-2019-0095031 (published on August 14, 2019) Korean Patent Registration No. 10-1766218 (announced on August 8, 2017)

The present invention was devised to solve the conventional problems as described above, the air bag can be automatically pumped and pressurized with a certain force, the number of breaths can be adjusted, and the respiration volume suitable for adults and infants It is to provide an air supply device for a ventilator that can be adjusted.

As a technical means for achieving the above-described technical problem, a semicircular mounting groove on the upper surface and a space part having a predetermined size as one side of the mounting groove on the upper surface to accommodate the air bag of the ventilator, and the space The crank plate is rotatably installed in the part and is connected to include a circular crank plate that forms a crank pin spaced apart from the center, a driving means connected to the center of the crank plate to drive rotation, and the crank pin It includes a pressing means for converting the rotational motion of the vertical reciprocating motion to pressurize and pump the air bag at a predetermined pressure.

According to an embodiment of the present invention, the main body may be provided with a front auxiliary cover that is rotated around a hinge portion at an end side connected to the mounting groove to assist in mounting the air bag.

According to an embodiment of the present invention, the crank plate includes a crank main journal formed at a center of a circle and connected to the driving means, a plurality of radial spokes integrally formed from the center of the crank main journal, and the spokes Any one may include the crank pin formed at a position spaced apart from the crank main journal.

According to an embodiment of the present invention, the driving means may include a rotary motor and a reducer capable of adjusting a pumping speed by changing an rpm according to a state of a user of the ventilator.

According to an embodiment of the present invention, the pressing means has an oval belt shape to include the crank pin therein, and is integrally formed at one end of the connect rod with a connect rod moving in a long axis direction around the crank pin. It can be made of a plate-shaped pressing plate for pressing the air bag.

Moreover, a torsion spring may be further installed on the pressure plate to increase the force of pressure.

According to an embodiment of the present invention, the pressurizing plate is separately manufactured and inserted from one end of the pressurizing plate, but the insertion direction can be changed forward and backward, so that the amount of air that can selectively adjust the degree of pressurization according to the user of the ventilator An adjustable pressure plate may be further installed.

In addition, the air volume control pressure plate is formed with a pressure protrusion having a different degree of protrusion to one side and the other side around a plane, so that there may be a difference in the degree of pressure of the air bag.

In the air supply device for an artificial respirator according to the present invention, there is an effect of being able to easily pressurize an air bag with a compact and simple structure.

In addition, there is an effect of being able to pressurize the air bag with a certain force.

In addition, it is possible to control the number of breathing, and there is an effect of being able to adjust the appropriate breathing volume for adults and infants.

1 is a perspective view of an air supply device for an artificial respirator according to an embodiment of the present invention,
2 is an exploded perspective view of an air supply device for a ventilator according to an embodiment of the present invention,
3 is a schematic side view for showing a driving relationship in an air supply device for a ventilator according to an embodiment of the present invention,
4 is a block diagram showing an operating state of an air supply device for a ventilator according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those of ordinary skill in the art can easily implement the present invention. However, the present invention may be implemented in various different forms and is not limited to the embodiments described herein. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and similar reference numerals are assigned to similar parts throughout the specification.

Throughout the present specification, when a part "includes" a certain component, it means that other components may be further included rather than excluding other components unless otherwise stated.

Here, FIG. 1 is a perspective view of an air supply device for a ventilator according to an embodiment of the present invention, FIG. 2 is an exploded perspective view of an air supply device for a ventilator according to an embodiment of the present invention, and FIG. 3 is an embodiment of the present invention. It is a schematic side view for showing a driving relationship in the ventilation air supply device according to, and Figure 4 is a configuration diagram showing the operating state of the air supply device for the artificial ventilation according to an embodiment of the present invention.

As shown in Fig. 1 or 2, the respirator air supply device 100 has a main body 110 that largely accommodates the air bag 12 of the respirator 10, and is installed on the main body 110 to rotate. A driving crank plate 120, a driving means for driving the crank plate 120, and a rotational motion connected to the crank plate 120 are converted into vertical reciprocating motion to pressurize and pump the mounted air bag 12. It may include a pressing means to.

First, it is preferable that the main body 110 is made of synthetic resin or a light metal material, and has a rectangular shape as a whole, but is not shown, but a non-slip bottom plate may be provided and installed.

The main body 110 may be formed with a semicircular mounting groove 112 with an upper opening to accommodate the air bag 12 of the ventilator 10 in the longitudinal direction, and the size of the conventional air bag It may be possible if it is a semicircle size that can contain more than 1/2 of (12).

In addition, an elliptical support protrusion 112a may be integrally formed on the bottom surface of the mounting groove 112 by spaced apart the air bag 12 to a certain extent and to aid pressure from the opposite side, and the arc of the mounting groove 112 It may be desirable to protrude along the direction.

Further, at the end side connected to the mounting groove 112, a front auxiliary cover 114 may be installed that is rotated around the hinge portions 114a at both ends to assist in the mounting of the air bag 12.

The front auxiliary cover 114 has an open bottom surface and a hollow inside, and is rotated outward around the hinge portions 114a at both ends, and the degree of rotation may be greater than or equal to 120°.

In addition, the front auxiliary cover 114 may be installed in the dimension of space preparation because it may be somewhat inconvenient due to interference by the pressurizing means since the air bag 12 of the ventilator 10 is mounted.

Meanwhile, in the main body 110, a space 116 having a predetermined size may be formed inside the body 110 on one side thereof, such as along the length direction, such as the mounting groove 112.

The space part 116 is opened upward so that the upper cover 117 may be detachably installed, and a crank plate 120 and a driving means may be installed in the space part 116.

Here, an on/off power button and a time control panel are installed on the upper cover 117 to enable electrical operation.

In addition, according to the drawing, the crank plate 120 may be in the shape of a circular shape or a disk shape.

At the center of the crank plate 120, a crank main journal 122 connected to a driving means to be described below is formed, and a plurality of radial wheel spokes 124 integrally formed with the crank main journal 122 from the center Can be formed.

And in any one of the spokes 124, a crank pin 126 may be formed to protrude in an orthogonal direction at a position spaced from the center crank main journal 122, and the crank pin 126 is spaced apart from the center to the outer periphery side. It is closer to, so the turning radius can be large.

Here, a bearing may be installed on the crankpin 126 to enable rotational rotation, although not shown.

Meanwhile, a driving means for rotating is installed in the crank main journal 122, and the driving means may be a rotating motor 130 and a reducer 132.

The rotating motor 130 receives power according to the application of power, and accordingly, any one of a vehicle power supply method and a battery method may be used, or a mixture may be used. Accordingly, a battery may be installed in the main body 110. .

In addition, the rotary motor 130 may adjust the pumping speed by changing the rpm according to the state of the user of the ventilator 10.

In more detail, it can be roughly divided into three stages, for example, it can be set to one rotation every 2.5 seconds, one rotation every 3 seconds, and one rotation every 3.5 seconds, depending on the patient's condition. It may be set, and it may be desirable to set the rotation speed to increase as the age increases.

And it is connected to include the crank pin 126 includes a pressing means for converting the rotational motion of the crank plate 120 into a vertical reciprocating motion to pressurize and pump the air bag 12 at a predetermined pressure.

The pressurizing means is a pressurizing plate 142 for pressing the connect rod 140 connected to the crankpin 126 and the air bag 12 integrally formed from the connect rod 140 and located in the mounting groove 112 It can be composed of.

The connect rod 140 has an elliptical belt shape to include the crank pin 126 therein, and is moved in the long axis direction around the rotating crank pin 126.

Further, a pressing plate 142 having a total area is formed integrally from the connect rod 140, and the connect rod 140 and the pressing plate 142 may be connected to each other at a predetermined angle.

This is connected obliquely with an angle around the connection portion for more efficient pressing, and when the connection angle is centered on the connect rod 140, it may be preferably about 15° to 20°.

The pressure plate 142 has an area that can sufficiently contact the air bag 12 and may have a thickness of about 1.5 cm to 2.5 cm.

And although it may be made of a single disk filled with the inside, the inside is hollow for weight reduction, but a spacer is formed to reinforce rigidity, and a pressure plate cover 144 can be installed for the aesthetic.

Here, the connect rod 140 is located in the space 116 of the body 110, and the pressure plate 142 is positioned toward the mounting groove 112 to perform vertical reciprocation, and the main body ( A hinge groove 118 is formed in 110, and hinge pins 145 formed on both sides of the pressure plate 142 are positioned in the hinge groove 118 to help the vertical reciprocating movement without departure.

In addition, an air volume control pressure plate 150 that is manufactured separately from the pressure plate 142 and is inserted from one end of the pressure plate 142 to pressurize the air bag 12 may be installed.

The air volume control pressurizing plate 150 has one side facing the pressurizing plate 142 and can be inserted, and the degree of insertion is appropriately 1/2 to 2/3 of the pressurizing plate 142, and the direction of insertion is forward and backward. It is changeable, and the degree of pressurization can be selectively adjusted according to the user of the ventilator 10.

That is, when the first pressing protrusion 152 of an arc shape protrudes to a predetermined height on one surface of the air volume control pressing plate 150, the second pressing protrusion 152 protrudes higher than the first pressing protrusion 152 on the other surface. Since the pressing protrusion 154 is formed, there may be a difference in the degree of pressing of the air bag 12.

Further, the pressure plate 142 may be further provided with a torsion spring 146 to increase the force of the pressure, and the torsion spring 146 adds force to the pressure toward the pressure plate 142 side, and the spring support side It may be supported on the side of the upper cover 117.

The operation of the ventilator air supply device according to the present invention having the above configuration will be described with reference to FIG. 3 or FIG. 4.

First, the main body 110 is fixedly positioned on the site floor or on a flat surface to some extent, and the front auxiliary cover 114 is rotated outwardly around the hinge portion 114a in the main body 110, and the pressurizing plate ( While lifting 142, the air bag 12 of the ventilator 10 is seated in the mounting groove 112.

Here, a hose connected from the air bag 12 of the respirator 10 and a mask connected to the hose are worn by the patient.

In addition, depending on the user of the respirator 10, the pressure plate 150 for controlling the amount of air is selectively inserted into the pressure plate 142. Here, when the user is a child, breathing is faster than an adult, and a large amount of air is required. The air volume control pressure plate 150 is inserted into the pressure plate 142 so that the pressure protrusion 154 faces downward.

Conversely, in the case of an adult, the first pressure protrusion 152 of the air volume control pressure plate 150 is inserted to face downward.

Power is applied in the state as described above, and the rotary motor 130 and the reducer 132 operate. At this time, the rpm speed of the rotary motor 130 can be changed according to a preset value, which can be set to rotate once every 2.5 seconds, once every 3 seconds, and once every 3.5 seconds as described above. .

By the operation of the rotating motor 130, the crank plate 120 is rotated around the crank main journal 122, and the crank pin 126 on the spokes 124 is also rotated along the rotation radius.

Here, as shown in FIG. 4, the connect rod 140 moves in the long axis direction along the rotating crank pin 126, and the pressing plate 142 integrally connected thereto is reciprocated in the vertical direction around the hinge axis 118. While exercising, the air bag 12 is pressurized at a certain pressure.

In this case, the pressure plate 142 temporarily presses the air bag 12 and then separates the air bag 12 according to the rotational motion of the crank pin 126, such as when a person presses it by hand, so that air injection may be possible.

That is, when the patient inhales, the crank pin 126 serving as a force point and the connecting rod 140 and the connecting point connected to the pressure plate 142 are located close to each other, and the connecting point and the crank pin 126 are in exhalation. ) And the position is moved away, and during the inhalation operation, the torsion spring 146 supported by the upper cover 117 adds force to the pressure.

In addition, pressure is directly performed by the first pressing protrusion 152 or the second pressing protrusion 154 of the air volume control pressing plate 150, and the support protrusion 112a of the mounting groove 112 helps pumping from the lower surface. .

The pumping operation is performed until the patient's consciousness returns and no further injection of air is required.

Due to the functions as described above, it is possible to easily pressurize the air bag with a compact and simple structure.

In addition, it is possible to pressurize the air bag with a certain force.

In addition, it is possible to control the number of breathing and adjust the appropriate breathing volume for adults and infants.

In the detailed description of the present invention, specific embodiments have been described, but various modifications are possible without departing from the scope of the present invention. Therefore, the scope of the present invention is limited to the described embodiments and should not be determined, and should be determined by the scope of the claims and equivalents as well as the scope of the claims to be described later.

10: ventilator 12: air bag
110: main body 112: mounting groove
112a: support protrusion 114: front auxiliary cover
116: space 117: upper cover
120: crank plate 122: crank main journal
124: spokes 126: crank pin
130: rotary motor 132: reducer
140: connect rod 142: pressure plate
144: pressure plate cover 146: torsion spring
150: air volume control pressure plate 152: first pressure protrusion
154: second pressing protrusion

Claims (1)

A main body having a semicircular mounting groove on an upper surface and a space having a predetermined size at one side of the mounting groove so as to accommodate the air bag of the ventilator;
A circular crank plate rotatably installed in the space and forming a crank pin spaced from the center;
A driving means connected to the center of the crank plate to drive rotation; And
A pressurizing means connected to include the crank pin to convert the rotational motion of the crankplate into a vertical reciprocating motion to pressurize and pump the air bag at a predetermined pressure; Including,
The driving means,
It consists of a rotary motor and a reducer capable of adjusting the pumping speed by changing the rpm according to the state of the user of the ventilator,
The pressing means,
A connect rod having an oval belt shape to include the crank pin therein, and moving in a long axis direction around the crank pin,
It is formed integrally with one end of the connect rod and consists of a plate-shaped pressing plate for pressing the air bag,
A torsion spring is further installed on the pressure plate to increase the force of pressure,
The pressurizing plate is separately manufactured and inserted from one end of the pressurizing plate, and an air volume control pressurizing plate capable of selectively adjusting the degree of pressurization according to the user of the ventilator is further installed by changing the insertion direction forward and backward,
The air supply device for an artificial respirator, characterized in that the air volume control pressurizing plate has a pressure protrusion having a different degree of protrusion from one side and the other side around a plane, so that there is a difference in the degree of pressurization of the air bag.

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