JP2008278992A - Bedsore prevention mattress - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a bedsore prevention mattress excellently preventing bedsore of a subject, quickly warming or cooling the subject, formed adjustable in temperature, having high safety and closely attached to the subject because of its bendability. <P>SOLUTION: A mattress body 1 is consists of a rough fluid layer consisting of a material having innumerable communicating voids and elasticity, a lower-side cushion layer 11 consisting of a material having a high repulsion property, flexibility and air impermeability, an upper-side cushion layer 13 consisting of a material having a low repulsion property, flexibility and air permeability, and a mat cover 15 consisting of a material having air impermeability and flexibility. An air blowing in hose 18 and an air blowing hose 19 are connected to a blowing hose connection hole 6 of the mattress body 1 and a blowing out hose connection tube 10 respectively to circulatingly pass the warm air to the mattress body 1 by a circulation air blower means 16. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a pressure ulcer prevention mattress, and more particularly, to a pressure ulcer prevention mattress having a function capable of controlling an increase or decrease in the body temperature of a subject during surgery.

  In recent years, with the advancement of medical technology, there have been many cases over a long period of time, and during this time, the subject is forced to maintain a certain posture on the bed. In addition, it is impossible for a subject who has undergone general anesthesia to change his posture. For this reason, there is a problem that the subject can develop pressure ulcers due to poor blood circulation, but this is mainly due to the fact that the surgical bed is made hard because it is necessary to maintain the stability of the body during surgery. It has become. Thus, various bedsore prevention beds have been proposed, but no bed that can sufficiently prevent the occurrence of pressure ulcers has been known yet.

On the other hand, the body temperature of the subject may decrease due to anesthesia at the time of surgery, and it is necessary to quickly warm the body temperature to an optimum temperature. Conversely, it may be necessary to lower the body temperature of the subject to maintain a low body temperature. In such a case, as a means for heating or cooling the subject, a type in which warm air is sent to the quilt cover, a type in which warm water or cold water is supplied into the blanket, a type in which an electric heating element is disposed in the blanket, Furthermore, a type in which hot water or cold water is circulated in the mat is known.

Further, the gel mat body made of the unfoamed polyurethane plate-shaped molded product G and a heat retaining function are imparted to the gel mat main body, and the heat retaining function allows the polyurethane plate-shaped molded product G to contain a conductivity imparting agent directly or impart conductivity. An operating table mat provided by either placing an agent-containing sheet in the polyurethane plate-like molded product G has been proposed (Patent Document 1).
JP 2005-52180 A

  Among the above-described conventional techniques, the type that sends hot air to the quilt cover and the type that supplies hot water or cold water into the blanket or mat take time until the temperature is transmitted to the patient, so that The disadvantage of not being able to adjust the body temperature of the surgeon, the disadvantage of not being able to quickly adjust the temperature, and the strength to support the weight of the subject is also necessary, so it must be hardened, and the onset of pressure ulcers There is also a problem that cannot be prevented. In addition, the type with an electric heating element in the blanket may break if it is bent freely in order to be in close contact with the body, and if there is a problem with the electric circuit, a large current is supplied to the electric heater in the bracket. There is a danger that the situation that flows will occur. Further, the operating table mat that combines the conductivity imparting agent with the gel mat body made of the polyurethane plate-like molded product G also has wiring for energizing, and thus has the same drawbacks as described above.

  The present invention has been made in view of the above-described problems and disadvantages of the prior art, and is excellent in preventing pressure ulcers in a subject, and can quickly warm or cool the subject, and also adjusts the temperature. It is possible and consumes less power than water circulation methods that require heating, heat absorption, water supply, etc., and there is no problem of water leakage, and the heat source is separated from the mattress body via a hose, so it is excellent in safety. In addition, the present invention aims to provide a pressure ulcer prevention mattress that can be bent so that it can be brought into close contact with the subject and that it is circulated so that the wind does not dance in the operating room.

  The means of the present invention configured to solve the above-mentioned problems is that the mattress body is composed of a rough fluidized bed formed of innumerable communicating voids and a material having elasticity, high repulsion, flexibility and air permeability. A lower cushion layer formed of a material and overlaid on the lower surface of the rough fluidized bed; an upper cushion layer formed of a material having low rebound, flexibility and breathability, and overlaid on the upper side of the rough fluidized bed; , Formed from a material having non-breathability and flexibility, and composed of a mat cover that integrally covers from the upper cushion layer to the lower cushion layer, and provided with an air blowing port and an air suction port in the mattress body, A hose is connected to each of the air blowing port and the air suction port, and hot air or cold air is circulated and flowed through the coarse fluidized bed by circulating air blowing means.

  The mattress main body may be provided with a discharge nozzle that is located on one side of the coarse fluidized bed and allows the air to flow uniformly into the coarse fluidized bed in communication with the air blowing port.

  The mattress main body may be provided with a blower aggregate that is located on the other side of the coarse fluidized bed and collects air and communicates with the air suction port.

  Furthermore, the lower cushion layer may be formed with a plurality of bending cuts.

  The upper cushion layer may be formed with a plurality of discharge holes that communicate with the coarse fluidized bed and open on the upper surface.

Since the present invention is configured as described above, the following effects can be obtained.
(1) A rough fluidized layer with excellent air fluidity and elasticity, a lower cushion layer with excellent rebound, flexibility and non-breathability, and low rebound, flexibility and breathability The upper cushion layer has a three-layer structure, and the soft upper cushion layer is deformed along the body of the subject to ensure a wide contact area, and the elastic rough fluidized layer applies the load on the subject. It is received and dispersed downward, and the lower cushion layer of highly repellent material accepts the load so that it can accept the subject's weight in a wide range, so it is possible to prevent the pressure ulcer of the subject reliably can do.
(2) Since the coarse fluidized bed is formed of a material having innumerable communicating voids excellent in air fluidity, the mattress body can be quickly heated or cooled. It is suitable for body temperature adjustment.
(3) Since the upper cushion layer is made of a material having low repulsion and flexibility, the upper cushion layer is brought into close contact with the body of the subject, so that the temperature can be quickly transmitted to the subject.
(4) The mattress main body is excellent in safety because it is separated from the circulating air blowing means having a heat source by connecting via a hose.
(5) Since the mattress body is provided with a diffusion nozzle for uniformly blowing air to the blowing fluidized bed, the subject can be uniformly heated or cooled.
(6) Since a plurality of incisions for bending are formed in the lower cushion layer, adhesion to the body of the subject can be further enhanced.
(7) Since warm air or cold air directly hits the cover from the plurality of discharge holes formed in the upper cushion layer, there is no temperature difference between the inside and the upper side of the mattress body. The subject can be quickly heated or cooled.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the following description, an example in which hot air is circulated and flowed has been described, but the principle and action include the case in which cold air is flowed. In the figure, reference numeral 1 denotes a mattress body constituting a pressure ulcer prevention mattress. Reference numeral 2 denotes a coarse fluidized bed constituting the mattress main body 1, and the coarse fluidized bed 2 has an infinite number of communicating voids and is excellent in air fluidity, and elastically supports the weight of the subject. A material having elasticity and toughness that can be used is desirable. As this material, for example, a cushion net (described in JP-A-7-238456) can be used. The coarse fluidized bed 2 is made of a material having the above-described properties in a substantially rectangular plane and is formed to a thickness of about 50 to 60 mm, and a substantially bowl-shaped recess 2B is formed on one side surface 2A in the longitudinal direction.

Reference numeral 3 denotes a mattress body 1, and a diffusion nozzle provided in contact with one side surface 2 </ b> A of the coarse fluidized bed 2 in order to disperse and flow hot air uniformly in the coarse fluidized bed 2. Reference numeral 4 denotes a nozzle body constituting the diffusing nozzle 3, and the nozzle body 4 has a breathable base portion 4A formed of the same cushion net as the coarse fluidized bed 2 in a substantially planar shape, and has a non-breathability and flexibility. The nozzle cover 4B is made of a material having, for example, nylon and covers the entire air-permeable base 4A.

5A, 5B,..., 5L (sometimes collectively referred to as nozzle holes 5) indicate 11 (reference numeral 5I is not used) nozzle holes, and the nozzle holes 5 are separated from each other on the inner surface of the nozzle cover 4B. And it is formed facing forward or laterally. Here, out of the 11 nozzle holes 5, the nozzle holes 5A and 5B facing a blow hose connection port 6 to be described later have a small diameter of about a half of the other nozzle holes 5C,. It is set. This is because the warm air blown from the blow hose connection port 6 is not concentrated on a part of the coarse fluidized bed 2 but dispersed throughout. The diffusion nozzle 3 having such a configuration is in contact with one side surface 2A of the coarse fluidized bed 2 in a state where the protrusion 3A is fitted in the recess 2B.

  Reference numeral 6 denotes a blowing hose connection port provided in communication with the nozzle body 4, and the blowing hose connection port 6 is formed of a synthetic resin cylinder, and from the nozzle body 4 at a position on one side in the longitudinal direction of the diffusion nozzle 3. It is provided in a protruding state.

  Reference numeral 7 denotes a rectangular ventilation aggregate provided in contact with the other side 2C of the coarse fluidized bed 2. The air-blowing aggregate 7 is a non-ventilated air covering the air-permeable block 8 obtained by cutting the cushion net-like body into a horizontally-long cube, and 5 surfaces of the 6 surfaces of the air-permeable block 8 except for the inner surface 7A in contact with the rough fluidized bed 2. And a material having flexibility and flexibility, for example, a closing cover 9 made of nylon. Reference numeral 10 denotes a suction hose connection port provided in communication with the air blowing aggregate 7. The suction hose connection port 10 is formed of a synthetic resin cylinder and is provided in a state of protruding from the lateral side surface 7 </ b> B of the air blowing aggregate 7. is there.

  Reference numeral 11 denotes a lower cushion layer laminated so as to entirely cover the lower surface 2D of the rough fluidized bed 2. The lower cushion layer 11 is made of a material having high repulsion, flexibility, and air permeability, such as high repulsion urethane formed in a thickness of about 50 to 60 mm. The lower surface 11A of the lower cushion layer 11 is formed with a large number of bending notches 12, 12,... So as to be foldable so that it can be in close contact with the body of the subject. Heat is transferred without loss, and it is easy to adapt to the posture of the body.

  Reference numeral 13 denotes an upper cushion layer that entirely covers the upper surface 2E of the coarse fluidized bed 2. The upper cushion layer 13 is made of a material having a low rebound, flexibility and breathability, for example, a low repulsion urethane formed in a flat plate shape with a thickness of about 25 to 30 mm. In the upper cushion layer 13, a plurality of small-diameter discharge holes 14, 14,... Penetrating from the lower surface 13A to the upper surface 13B and communicating with the coarse fluidized bed 2 are formed at appropriate intervals.

Reference numeral 15 denotes a mat cover that is integrally covered from the upper cushion layer 13 to the lower cushion layer 11, and the mat cover 15 is made of a non-breathable and flexible material such as nylon. An opening (not shown) that can be opened and closed by a slide fastener is provided on one side in the width direction of the mat cover 15, and the rough fluidized layer 2, the lower cushion layer 11, and the upper cushion layer 13 are provided. Can be put in and out.

  On the other hand, reference numeral 16 denotes a circulating air blowing means for circulatingly supplying hot air to the mattress body 1. Reference numeral 17 denotes a hot air supply device that constitutes the circulating air blowing means 16. The hot air supply device 17 houses a hot air generator including a heater and a blower fan in a casing 17A, and the hot air generator is provided in the casing 17A. Are provided with a power switch 17B and a temperature setting dial 17C.

  Further, the thermistor 17D that constitutes the circulating air blowing means 17 and senses the temperature in the mattress body 1 is disposed between the upper cushion layer 13 and the cover 15 at an appropriate interval, and the temperature is supplied via a wiring (not shown). Connected with wind generator. Thereby, the warm air of the optimal temperature for heating a subject can be supplied to the mattress main body 1.

Reference numeral 18 denotes an air blowing hose detachably connected to the casing 17A and the blowing hose connection port 6 of the hot air supply device 17, and 19 denotes an air suction hose detachably connected to the casing 17A and the suction hose connection port 10. Show.

  The pressure ulcer prevention mattress according to the present embodiment has the above-described configuration, and the soft upper cushion layer 13 is deformed along the body of the subject to ensure a wide contact area, and the rough fluidized bed 2 having elasticity. Receives the patient's load and disperses it downward, and the highly repellent lower cushion layer 11 receives the load, thereby receiving the patient's weight in a wide range. Pressure ulcer can be surely prevented.

Then, the air blowing hose 18 and the air suction hose 19 are connected to the mattress main body 1 placed on the surgical bed, and the hot air supply device 17 is started by operating the power switch 17B. The blow-in hose 18 is blown into the diffusion nozzle 3 through the blow-in hose connection port 6. The diffusion nozzle 3 has the nozzle holes 5A and 5B having a small diameter, while the other nozzle holes 5C to 5L are formed to have a large diameter, and the nozzle holes 5C to 5E and 5G to 5J are formed sideways. As a result, the warm air flowing into the diffusion nozzle 3 can be blown into the entire coarse fluidized bed 2 substantially uniformly, so that the entire mattress body 1 can be quickly heated.

  The hot air supply device 17 blows the hot air into the mattress body 1 and sucks the hot air through the air suction hose 19 so that the hot air flowing through the coarse fluidized bed 2 is sucked from the blower aggregate 7 and connected to the hose. The air is sucked into the hot air supply device 17 through the mouth 6 and the air suction hose 19. In this way, the hot air is forced to flow through the circulation path of the hot air supply device 17, the air blowing hose 18, the mattress main body 1, and the air suction hose 19, so that the mattress main body 1 easily spreads heat. However, it can be warmed on average without any bias.

In addition, since warm air is circulated instead of being released to the outside, there is little heat loss, power consumption can be greatly reduced, and there is no wind dancing in the treatment room, creating a comfortable environment. Can be maintained. Further, since warm air is not directly blown on the subject, there is no discomfort that only the blowing portion is heated, and the subject can be warmed on average.

1 is an external perspective view of a pressure ulcer prevention mattress according to an embodiment of the present invention. It is a disassembled perspective view of a mattress main body. It is sectional drawing which shows the structure of a mattress main body.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Mattress main body 2 Coarse fluidized bed 3 Dissipation nozzle 6 Blowing hose connection port 10 Suction hose connection port 11 Lower cushion layer 12 Bending cut 13 Upper cushion layer 14 Release hole 15 Mat cover 16 Circulation air blow means 18 Air blowing Hose 19 Air suction hose

Claims (5)

  The mattress body is formed of a coarse fluidized bed formed of a material having innumerable communication gaps and elasticity, and a material having high repulsion, flexibility and air permeability, and is stacked on the lower surface of the coarse fluidized bed. The upper cushion layer is formed of a side cushion layer, a material having low rebound, flexibility and breathability, and is superimposed on the upper side of the rough fluidized layer, and is formed of a material having non-breathability and flexibility, The mat cover is integrally covered from the cushion layer to the lower cushion layer, and the mattress body is provided with an air blowing port and an air suction port, respectively, and a hose is connected to each of the air blowing port and the air suction port. A pressure ulcer prevention mattress in which hot air or cold air is circulated and flowed through the coarse fluidized bed by a circulating air blowing means.   The mattress body is provided with a diffusion nozzle that is located on one side of the coarse fluidized bed and allows the air to flow uniformly to the coarse fluidized bed, in communication with the air blowing port. The pressure ulcer prevention mattress according to claim 1.   The pressure-resistant mattress according to claim 1, wherein the mattress main body is provided with a ventilation aggregate that is located on the other side of the coarse fluidized bed and collects air and communicates with the air suction port. .   2. The pressure ulcer prevention mattress according to claim 1, wherein the lower cushion layer is formed with a plurality of bending cuts.   2. The pressure ulcer prevention mattress according to claim 1, wherein the upper cushion layer is formed with a plurality of discharge holes communicating with the coarse fluidized layer and opening on an upper surface.

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