KR20190028215A - Air mattress for body pressure distribution - Google Patents

Abstract

A body pressure distribution air mattress according to the present invention includes an supporting layer for supporting a human body lying on an upper surface; a sensing unit disposed below the support layer and sensing a body pressure applied to the entire portion of the support layer; an air layer disposed below the sensing unit and having a plurality of air cells arranged therein; an air injection and discharge unit for injecting or discharging air into the air layer; a body pressure control controller for calculating body pressure distribution information according to a sensing signal transmitted from the sensing unit and generating a control signal for making the deviation of the body pressure distribution uniform; and a pneumatic control controller for controlling the air injection and discharge unit according to the control signal received from the pressure control controller. According to the body pressure distribution air mattress of the present invention, it is possible to sense the body shape and posture of the sleeping person in real time, so that the customized pressure can be distributed according to the body shape of the sleeping person. In addition, even if the sleeping person is twitching or changing his/her posture, the body pressure distribution air mattress can actuate immediately and perform proper body pressure distribution function accordingly. Accordingly, uniform pressure distribution and cushioning can be performed during the sleeping time of the sleeping person, thereby providing a sleeping environment of higher quality.

Description

[0001] The present invention relates to an air mattress for body pressure distribution,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air mattress, and more particularly, to an air mattress having a body pressure distribution type designed to uniformly apply a body pressure applied to a human body of a sleeping person regardless of the body bending.

In recent years, activity time has been prolonged in modern life cycle, while sleep and rest time have been shortened, and quality improvement of sleep has become more important problem.

Especially, when the body pressure is not properly dispersed during the sleep, the capillary blood vessels are depressed and the sleeping or sleeping symptom appears in areas where the body pressure is high, such as both shoulders, hips and caudal bones.

At present, awareness of sleep management is focused on improving the sleeping rhythm and the sleeping habits that control life, and there is little aspect of improving sleep quality by controlling the pressure applied to the mattress.

Korean Patent No. 10-1383951 (registered April 03, 2014) discloses an air mattress capable of preventing the occurrence of a pressure ulcer in a lying person, wherein each of the air mattresses is composed of a plurality of bag- A plurality of air cell groups juxtaposed corresponding to at least a head portion, a shoulder portion, a back surface portion, a hip portion, a thigh portion, a knee portion and a heel portion of a person lying on the air mattress with respect to the longitudinal direction of the air mattress, Or an air tube that connects the bag-shaped cells and the air supply / exhaust pump to one or a plurality of second systems independent of the plurality of first system and the plurality of air cell groups for each specific bag-shaped cell.

Korean Patent Registration No. 10-1413815 (registered on Apr. 24, 2014) discloses an air mattress built-in pump that improves workability and maintainability. According to the disclosed technology, the pump-built-in air mattress comprises a plurality of air cell groups, each of which is constituted by juxtaposing a plurality of bag-shaped cells in the longitudinal direction of the air mattress and arranged in the longitudinal direction of the air mattress, Each air cell group is provided with an air tube that connects the air cell group and the air supply and exhaust pump to the cell group in an independent system. The length of the air cell group corresponding to the leg portion of the lying person is shorter than the length of the other bag-shaped cells by 30% or less so that the rim portion of the air mattress and the air mattress An air supply and exhaust pump is disposed in a space

In the conventional air mattress as described above, it is difficult to detect the real-time customized body pressure according to the posture of the user and the bending of the human body. Accordingly, the active body pressure distribution function can not be performed, and it is difficult to accurately distribute the body pressure according to the body condition of the sleeping person. When posture changes frequently during sleep, there is a problem that the body pressure dispersion effect is in fact insufficient.

Korean Registered Patent No. 10-1383951 (Registered on Apr. 03, 2014) Korean Registered Patent No. 10-1413815 (registered on April 24, 2014)

Disclosure of Invention Technical Problem [8] Accordingly, the present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a body pressure-releasing air mattress which monitors a sleeping person's body shape and a sleeping posture in real time and provides a customized body pressure distribution function accordingly.

According to one aspect of the present invention, there is provided a means for solving the above-mentioned problems, comprising: a support layer for supporting a human body lying on an upper surface; A sensing unit disposed below the support layer and sensing a body pressure applied to the entire portion of the support layer; An air layer disposed below the sensing unit and having a plurality of air cells arranged therein; An air injection and discharge unit for injecting or discharging air into the air layer; A body pressure control controller for calculating body pressure distribution information according to the sensing signal transmitted from the sensing unit and generating a control signal for making the deviation of the body pressure distribution uniform; And a pneumatic control controller for controlling the air injection and discharge unit in accordance with a control signal received from the pressure control controller.

In one embodiment, the body pressure control controller can generate an exhaust control signal of the air injection and exhaust part in the over-body pressure interval, and an injection control signal of the air injection and discharge part in the low pressure interval.

In one embodiment, the body pressure-releasing air mattress according to the present invention may further include an elastic reinforcing layer interposed between the sensing portion and the air layer, the elastically reinforcing layer including an elastic force upward.

In one embodiment, the elastic reinforcing layer may include a base portion formed in a flat plate shape of a flat polyurethane material, and a foaming portion in which an upper surface of the base portion is foamed to form a plurality of microspheres.

In one embodiment, the body pressure-releasable air mattress according to the present invention may further include a display unit that receives body pressure distribution information from the body pressure control controller and displays an image of the body pressure distribution.

In one embodiment, the support layer may include a support pad formed of a polyurethane material and formed in a flat plate shape, and a coating layer formed by coating a protein-based coating agent on the surface of the support pad.

In one embodiment, the air layer may include a first aligning portion in which basic air cells of a long shape are arranged in multiple layers, and a second aligning portion in which fine air cells having a relatively smaller size than the basic air cells are arranged in a multi- have.

In one embodiment, the pressure control controller controls the basic air cell of the first sorting unit so as to detect the pressure distribution in a stepwise manner, and provides a predetermined set air pressure according to the step, And can control the air injection and discharge unit to provide air pressure in real time according to the numerical value.

In one embodiment, the sensing unit includes: a first electrode array on the lower side of the supporting layer, the first electrode array having a plurality of first electrodes made of conductive fibers spaced apart in a first direction; A second electrode array spaced below the first electrode array and spaced apart in a second direction perpendicular to the first direction, the second electrodes being made of conductive fibers; A dielectric interposed between the first and second pole arrays and having elasticity; And a CPU for receiving the information on the distance change value between the first and second electrodes and calculating the magnitude of the pressure applied to the support layer.

The body pressure-releasing air mattress according to the present invention senses the body shape and posture of a sleeping person in real time, thereby enabling a customized pressure distribution according to the sleeping person's body shape. In addition, So that an appropriate body pressure distribution function can be performed. Accordingly, uniform pressure distribution and cushioning can be performed during the sleeping time of the sleeping person, thereby providing a sleeping environment of higher quality.

The present invention also provides an elastic reinforcing layer formed with foamed microspheres to provide a high elasticity to the supporting layer contacting the sleeping pads, thereby preventing bending and wrinkling. Also, since elasticity of the supporting layer is maintained during body pressure dispersion due to bending of the human body, Can be achieved.

Further, the sensing unit is fabricated with a fiber-based unit sensor having a high resolution, and a fine-acting air cell is disposed at the shoulder portion and the lumbar region where the weight of the sleeping person is large.

1 is a perspective view schematically showing a decomposition structure of a body pressure-releasing air mattress according to an embodiment of the present invention.
FIG. 2 is a view showing a state where a bio-coating film is formed on the support pad shown in FIG. 1. FIG.
3 is a view showing the detailed structure of the sensing unit shown in FIG.
Fig. 4 is a view showing the air layer shown in Fig. 1. Fig.
FIG. 5 is a block diagram showing an electrical connection state between the sensing unit, the air layer, the air injection and discharge unit, the pressure control controller, the pneumatic control controller, and the display unit shown in FIG.
FIG. 6 is a block diagram for explaining the operating relationship of the air layer, the air injection and discharge unit, and the pressure control controller shown in FIG. 5;
7 is an enlarged view of a section of the elastic reinforcing layer shown in Fig.
8 is a block diagram for explaining the operation of the body pressure control controller and the display unit shown in Fig.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. However, the description of the present invention is merely an example for structural or functional explanation, and the scope of the present invention should not be construed as being limited by the embodiments described in the text. That is, the embodiments are to be construed as being variously embodied and having various forms, so that the scope of the present invention should be understood to include equivalents capable of realizing technical ideas. Also, the purpose or effect of the present invention should not be construed as limiting the scope of the present invention, since it does not mean that a specific embodiment should include all or only such effect.

The meaning of the terms described in the present invention should be understood as follows.

The terms "first "," second ", and the like are intended to distinguish one element from another, and the scope of the right should not be limited by these terms. For example, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component. It is to be understood that when an element is referred to as being "connected" to another element, it may be directly connected to the other element, but there may be other elements in between. On the other hand, when an element is referred to as being "directly connected" to another element, it should be understood that there are no other elements in between. On the other hand, other expressions that describe the relationship between components, such as "between" and "between" or "neighboring to" and "directly adjacent to" should be interpreted as well.

It should be understood that the singular " include "or" have "are to be construed as including a stated feature, number, step, operation, component, It is to be understood that the combination is intended to specify that it does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

All terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, unless otherwise defined. Commonly used predefined terms should be interpreted to be consistent with the meanings in the context of the related art and can not be interpreted as having ideal or overly formal meaning unless explicitly defined in the present invention.

Now, a body pressure-releasing type air mat (hereinafter referred to as " air mat ") according to an embodiment of the present invention will be described in detail with reference to the drawings.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view showing an air mat according to an embodiment of the present invention; FIG.

Referring to FIG. 1, the air mat according to the present invention monitors a body shape and a sleeping posture of a sleeping person in real time and provides a customized body pressure dispersion function. To this end, the air mat includes a support layer 100, An air layer 300, an air injection and discharge unit 400, a body pressure control controller 500 and a pneumatic control controller 600. [

Here, the air mat according to the present invention can be applied to a bed used at home, and can be applied to a patient who is staying in a hospital or a nursing home for a long time, and the scope of application is not limited.

FIG. 2 is a view showing a state where the bio-coating film 120 is formed on the support pad 110 shown in FIG.

Referring to FIGS. 1 and 2, the support layer 100 is laid on a top surface thereof to support a lying position of the human body. At this time, the support layer 100 is made of a flexible material bent according to the bending of the human body.

In one embodiment, the support layer 100 may include a support pad 110, a bio-coating layer 120, and a cover 130.

In one embodiment, the support pads 110 are formed in a flat plate shape so as to support a human body lying on the upper side, and can be bent and supported in accordance with the bending of the human body. At this time, the support pad 110 may be made of a polyurethane material.

 In one embodiment, the bio-coating film 120 may be formed by applying a protein-based coating agent on the surface of the support pad 110. At this time, the protein-based coating agent may be coated only on the upper surface of the support pad 110 and may be coated to cover the entire outer circumferential surface of the support pad 110.

In one embodiment, the protein-based coating agent may comprise Bio-protein powder.

As described above, by forming the bio-coating film 120 on the support pad 110, it is possible to ensure air permeability and touch such as natural leather, to provide a relatively cool feeling during summer when the human body and the material are in contact, A relatively warm texture can be provided.

In one embodiment, the cover 130 is made of a highly elastic material having an antibacterial function and is disposed on the upper side of the support pad 110 with the human body of the sleeping person touching directly. The cover 130 is preferably detachable.

The air mat according to the present invention provides a feeling of hygroscopic property by providing the body with cold and warm tactile feeling by making a region that is in contact with the body for a long time with a high elasticity and an antibacterial material and by performing a bio coating process on a portion adjacent to the body, Can be provided.

3 is a view showing the detailed structure of the sensing unit shown in FIG.

Referring to FIGS. 1 and 3, the sensing unit 200 is positioned below the supporting layer 100, and senses a body pressure applied to the entire region of the supporting layer 100.

In one embodiment, the sensing unit 200 may include a first electrode array 210, a second electrode array 220, a dielectric 230, and a CPU 240, as shown in FIG.

In one embodiment, the plurality of first electrodes 211 may be spaced apart in the first direction on the lower side of the support layer of the first electrode array 210. The first electrode may be formed of conductive fibers.

In one embodiment, the second electrode array 220 may be spaced apart from the first electrode array such that the plurality of second electric arrays 221 are spaced apart in the second direction. In this case, the second electrode may be formed of conductive fibers, and the second direction may be perpendicular to the first direction.

In one embodiment, the dielectric 230 is disposed between the first and second electrode arrays 210 and 220, the first electrode array 210 is attached to the upper surface, An electrode array 220 is attached.

In one embodiment, the dielectric 230 may be made of a material having elasticity with a predetermined dielectric constant. That is, the dielectric 230 is compressed as the first electrode 211 is lowered by the body pressure, and can be restored to the original state when the body pressure is released. The dielectric 230 may have a resistance higher than that of the first electrode 211 and the second electrode 221.

In one embodiment, the CPU 240 receives information on the distance change value between the first and second electrodes 211 and 221, and calculates the magnitude of the pressure applied to the support layer 100 .

In one embodiment, the CPU 240 can convert the capacitance change value according to the change of the inter-electrode distance value between the first and second electrodes 211 and 221 into a database. Here, the electrostatic capacitance obtained by the CPU 240 is derived according to the following equation.

[Equation 1]

는 상기 유전체(230)의 유전율(Dielectric constant)를 나타내며, A는 상기 제1전극(211) 및 제2전극(221)의 면적을 나타내고, d는 상기 제1전극(211) 및 제2전극(221) 사이의 거리를 나타낸다.In the above equation, C represents a capacitance,

A represents the area of the first electrode 211 and the second electrode 221 and d represents the area of the first electrode 211 and the second electrode 221. [ 221, respectively.

Fig. 4 is a view showing the detailed structure of the air layer shown in Fig. 1. Fig.

Referring to FIG. 1, the air layer 300 is provided below the sensing unit 200 to align a plurality of air cells 301 with respect to a sleeping person lying on the upper side, .

In one embodiment, the air layer 300 may include a first alignment unit 310 and a second alignment unit 320, as shown in FIG.

In one embodiment, the air cell 301 may be composed of a basic air cell 311 and a fine air cell 321 according to its size.

In one embodiment, the first alignment unit 310 may have a plurality of basic air cells 311 in a shape of an elongated shape.

In one embodiment, the second aligner 320 may be arranged in multiple rows with a relatively small size fine air cells 321 than the basic air cells 311. The second alignment unit 320 may be disposed in a plurality of sections between the first alignment units 310 and may be disposed at a position corresponding to a shoulder region and a lumbar region when the sleeping person is lying down.

FIG. 5 is a block diagram showing the electrical connection state between the sensing unit, the air layer, the air injection and discharge unit, the pressure control controller, the pneumatic control controller and the display unit shown in FIG. 1. FIG. An air injection and discharge unit, and a pressure control controller.

The air injecting and discharging unit 400 injects or discharges air into the air layer 300.

In one embodiment, the air injection and discharge unit 400 may include an air injection valve 410 and an air discharge valve 420.

In one embodiment, the air injection and discharge unit 400 may further include an air injection pump (not shown), an air discharge pump (not shown), an air injection tube (not shown), and an air discharge tube have.

In one embodiment, the air injection pump communicates with the air layer 300 to supply a certain amount of air into the air layer 300, and the air discharge pump is connected to the other side of the air layer 300 So that air in the air layer 300 can be sucked.

In one embodiment, the air injection tube is interposed between the air layer 300 and the air injection pump, and may be installed to communicate the air layer 300 and the air injection pump. The air discharge pipe may be interposed between the air layer 300 and the air discharge pump so as to communicate the air layer 300 and the air discharge pump. That is, an air inlet pipe through which air is injected into one air cell 301 and an air exhaust pipe through which air is exhausted can be connected, respectively.

In one embodiment, the air injection pipe is provided with an air injection valve 420 for opening and closing a flow passage, and an air discharge valve 420 for opening and closing the flow passage may be installed in the air discharge pipe. That is, when it is necessary to supply air to the air cell 301. The air injection valve 410 may be operated to open the flow path of the air injection pipe. On the other hand, when air is to be discharged to the air cell 301, the air discharge valve 420 can be operated to open the flow path of the air discharge pipe.

5, the body pressure control controller 500 calculates the body pressure distribution information according to the sensing signal transmitted from the sensing unit 200, generates a control signal for equalizing the deviation of the calculated body pressure distribution, (To be described later) to the air pressure control controller 600,

In one embodiment, the body pressure control controller 500 generates an air discharge control signal for an over-body pressure sense signal having a higher value compared to an average of a body pressure distribution, and generates an air discharge control signal for a lower body pressure sense signal The air injection signal can be generated.

In one embodiment, the body pressure control controller 500 can convert the body pressure distribution into an image database and transmit it to an external device. At this time, the body pressure control controller 500 transmits the over-body pressure display signal to the over-body pressure higher than the average of the body pressure distribution, delivers a normal display signal to a value equal to or close to the average, The low pressure display signal can be transmitted to a value that is less than the predetermined value. Preferably, the signal is output in a different color.

5 and 6, the pneumatic control controller 600 is electrically connected to the body pressure control controller 500 and controls the air injection and discharge unit 400 ).

In one embodiment, the pneumatic control controller 600 may receive the injection control signal and the discharge control signal from the body pressure control controller 500.

In one embodiment, the pneumatic control controller 600 may control the air injection and discharge unit 400 to induce air injection when an injection control signal is received. At this time, the pneumatic control controller 600 opens the air injection valve 410 to inject air into the air cell 301.

In one embodiment, the pneumatic control controller 600 may control the air injection and discharge unit 400 to induce air discharge when an emission control signal is received. At this time, the air pressure control controller 600 opens the air discharge valve 420 to discharge the air of the air cell 301.

The air mat according to the present invention may further include an elastic reinforcing layer 700 interposed between the sensing part 200 and the air layer 300 to provide an elastic force upward.

7 is an enlarged view of a section of the elastic reinforcing layer shown in Fig.

In one embodiment, the elastic stiffening layer 700 provides elasticity upwards and may comprise a base portion 710 and a foam portion 720.

In one embodiment, the base 710 is formed in a flat plate shape and may be made of a polyurethane material.

In one embodiment, the foam portion 720 may be foamed from the upper surface of the base portion 710 to form a plurality of microspheres.

The elastic reinforcing layer 700 may be low in specific gravity and low in density, and may reduce the amount of resin used compared to a reinforcing layer used in a conventional mattress. Further, it is possible to prevent the bending and wrinkling of the structure disposed on the upper side of the elastic reinforcing layer 700 by providing the high elasticity to the upper side, and the elasticity of the fabric is maintained when the body pressure is dispersed due to the bending of the human body, Lt; / RTI >

The air mat according to the present invention may further include a display unit 800 for providing an image of the real time pressure pressure distribution status to the sleeping person.

8 is a block diagram for explaining the operation of the body pressure control controller 600 shown in Fig. 5 and the display unit.

1, the display unit 800 is connected to the body pressure control controller 600, and is a video output device that receives and outputs real-time image data on a body pressure distribution of a sleeping person .

In one embodiment, the display unit 800 may be connected to an external electronic device such as a cellular phone, a notebook, or a TV, and may transmit real-time image data on a sleeping person's pressure distribution to an external electronic device.

In one embodiment, the display unit 800 may receive a step-by-step display signal from the body pressure control controller 500 as shown in FIG. Here, the step-by-step display signal may include an over-body pressure display signal, a normal body pressure display signal, and a low-pressure pressure display signal, and may be configured to output an image of a different color for each signal. For example, the over-body pressure display signal may be displayed in red on the display unit, the normal body pressure display signal may be displayed in green, and the low body pressure display signal may be displayed in blue.

The air mat according to the present invention is provided with the display unit 800 as described above, so that it is possible to observe the state of the pressure distribution of the sleeping person in real time and confirm whether the body pressure dispersion is uniform.

As described above, the embodiment of the present invention is not limited to the above-described apparatus and / or method, but may be implemented by a program for realizing a function corresponding to the configuration of the embodiment of the present invention and a recording medium on which the program is recorded And the present invention can be easily implemented by those skilled in the art from the description of the embodiments described above. While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, It belongs to the scope of right.

100: support layer 110: support pad
120: Bio-coating film 130: Cover
200: sensing part 210: first electrode array
211: first electrode 220: second electrode array
221: second electrode 230: dielectric
240: CPU 300: Air layer
301: air cell 310: first alignment unit
311: Basic air cell 320:
321: fine air cell 400: air injection and discharge unit
410: Air injection valve 420: Air discharge valve
430: Air pump 500: Pressure control controller
600: Pneumatic control controller 700: Elastic stiffening layer
710: Base part 720: Foam part
800:

Claims (5)

A supporting layer for supporting a human body lying on an upper surface;
A sensing unit disposed below the support layer and sensing a body pressure applied to the entire portion of the support layer;
An air layer disposed below the sensing unit and having a plurality of air cells arranged therein;
An air injection and discharge unit for injecting or discharging air into the air layer;
A body pressure control controller for calculating body pressure distribution information according to the sensing signal transmitted from the sensing unit and generating a control signal for making the deviation of the body pressure distribution uniform; And
And a pneumatic control controller for controlling the air injection and discharge unit according to a control signal transmitted from the pressure control controller.
2. The blood pressure monitor according to claim 1,
And an injection control signal of the air injection and discharge portion is generated in the pressure boosting portion and an injection control signal of the air injection and discharge portion is generated in the low pressure boosting portion.
The method according to claim 1,
Further comprising an elastic reinforcing layer interposed between the sensing part and the air layer to provide an elastic force upwardly.
4. The method according to claim 3, wherein the elastic reinforcing layer
A base portion formed in a flat plate shape of polyurethane material,
And a foamed portion in which an upper surface of the base portion is foamed to form a plurality of microspheres.
The method according to claim 1,
Further comprising a display unit that receives the body pressure distribution information from the body pressure control controller and displays an image of the body pressure distribution.

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