JPH08164168A - Air mat for medical treatment - Google Patents

Abstract

PURPOSE: To prevent the bottoming of a hip part so as to surely prevent the occurrence of bedsores when a bed-ridden patient gets a posture of raising the upper half of his/her body or a bed, etc., for a long time. CONSTITUTION: Many projecting parts 3a enclosed and divided by grooves 4 of a desired depth are formed approximately over the entire area of the front surface of intermediate pads 3 laid atop air cells 2 juxtaposed every difference in transfer circuits in the longitudinal direction of a mat body 1. The occurrence of bedsores in the patient, etc., particularly at the time of raising the upper half of his/her body is prevented by such constitution.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a medical air mat, which is suitable for use by a sick person for a long time without pressure ulcers.

[0002]

2. Description of the Related Art When a seriously ill person or a disabled person who does not turn over by himself or herself lays on the bed for a long period of time, a pressure ulcer may occur on the body. Causes of pressure ulcer include external factors such as body pressure applied from a bedding to a certain part of the body from a substantially vertical direction or a substantially horizontal direction, and a frictional force applied to a contact surface between the body and the bedding. Joining, causing poor circulation,
You have an unhealthy constitution, such as a decline in physical strength and poor nutritional status, and the condition that your body is overhumid and easy to cause erosion due to persistent dampness due to sweat, incontinence, etc. Factors such as bacterial reproduction may be considered. Conventionally, there is the following structure as a medical air mat for preventing pressure ulcers. That is, a base sheet made of a flexible material such as rubber or cloth is laminated with a highly polymerized polymer film on the cloth so as to have flexibility and hygroscopicity. An appropriate number of substantially cylindrical air cells in which cells having different transfer circuits are alternately arranged in the longitudinal direction of the base sheet, and the air cells are repeatedly expanded or contracted for each air transfer circuit at predetermined time intervals. A medical air mat comprising an air pump for sending air to the air cell. During use, the sick person lying on the air mat, by operating the air pump every predetermined time and sending air for each predetermined time for each air cell with different air transfer circuits, by repeating expansion or contraction, By changing the body position of the sick person into a waveform in the length direction of the air mat, it is possible to prevent local strong body pressure from concentrating on one place and enhance the motor function to promote blood circulation and prevent pressure ulcers. To do.

Moreover, in the conventional medical air mat, generally, a thin pad or sheet having excellent water absorbency, cushioning property and flexibility is laid on the upper surface of the air mat for use.

[0004]

However, the above-described conventional air mat is essentially designed for use by a sick person in a supine position on the air mat (posture lying on his back). It was intended to prevent pressure ulcers. At this time, the body pressure is most concentrated near the sacrum in the supine position. Therefore, in order to prevent the sick person from being bedridden as much as possible, it is not intended to promote active leaving of the bed or, for example, to actively maintain standing up on an air mat laid on the bed, but to maintain the gadget up position ( I didn't plan to keep my upper body upright for a long time.

From the viewpoint of dispersing the pressure applied to the body, it is more dangerous for a sick person to take a sitting position with the upper body raised on an air mat, as compared with the supine position. The sick person himself bears weight at a very narrow point near the ischial tuberosity. For this reason, the cells of the air mat are crushed by the weight and the so-called bottoming phenomenon of the air mat occurs, for example, the buttocks of the sick person adhere to the floor of the bed, which causes pressure ulcers and the like. For example, a sick person has a tilt angle of 3 on a bed.
Taking a gudge-up posture of 0 degrees or more for a long time is
Pressure ulcers were likely to occur, which was not preferable.

Moreover, the above conventional medical air mat is
Since the pad and sheets are laid on the upper surface of the air mat with excellent water absorption, cushioning and flexibility, it is used, so when the air cell repeatedly expands or contracts in a waveform due to the switching operation of the air pump, The movement (peristalsis) causes the pads and sheets laid on the upper surface of the air cell to move, causing wrinkles and steps, and turning up from the air mat. For this reason, in the sick person who does not turn over, the air cell repeatedly receives expansion and contraction, which causes local pressure to locally compress the blood cell, resulting in poor blood circulation in that area. Wrinkles and the like occurred on the bed, which made the person feel uncomfortable and became a light sleep or tired of sleeping.

Further, in order to store it in a closet or the like when it is not used, it is necessary to fold the air mat, the pad, and the sheets and store them in the closet, which is troublesome and inconvenient. It was inconvenient because I had to prepare it.

The present invention solves the above-mentioned conventional drawbacks, and when a bedridden sick person takes a gudge-up posture for a long period of time, it prevents the so-called bottom-bottom phenomenon of the buttocks and reliably prevents the occurrence of pressure ulcers. In addition, even if the air cell expands or contracts, wrinkles, flipping up, steps are not formed, and sleep fatigue is not felt, deep and refreshing sleep is guaranteed, and folding operation during storage is also easy. You can
It is to provide a medical air mat that can be manufactured at low cost.

[0009]

In order to solve the above-mentioned problems, the present invention provides an air cell arranged in parallel in the length direction of the mat main body for each different air transfer circuit, and an air transfer circuit for the air cell. Separately, an air pump that switches a valve every predetermined time so as to repeatedly perform expansion or contraction to feed or discharge air, and an insole pad that is laid on the air cell and is formed of a material having porous flexibility. In the medical air mat composed of (1) and (2), a means is adopted in which a large number of divided protrusions surrounded by grooves of a desired depth are formed on the insole pad over substantially the entire upper surface.

[0010]

When the air cells arranged in the length direction of the mat body are repeatedly expanded or contracted by the air pump every time the transfer circuit is changed, the porous material formed on the upper surface of the air cell is made of a flexible material. Since the insole pad has a large number of protrusions that are divided by being surrounded by a groove of a desired depth over substantially the entire area, the protrusions support the body of the sick person and distribute the body pressure. , Prevent pressure ulcers from occurring.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. Reference numeral 1 is a horizontally long mat body. Numeral 2 is an appropriate number of dozens of air cells arranged side by side in the length direction of the mat body 1 so as to be wrapped by the surface sheet 1a. The air cells 2 are, for example, hygroscopic flexible materials, for example, highly polymerized on cloth. It is formed into a substantially tubular shape by using a polymer film laminated or the like. In the air cell 2, for example, an odd numbered air cell 2 and an even numbered air cell 2 have different air transfer circuits and are supplied or exhausted by an air pump P, whereby an air transfer circuit is provided. Separately, the structure is similar to that of a known air mat in that expansion or contraction is alternately repeated every predetermined time.

Reference numeral 3 denotes an insole pad laid on the air cell 2, and the insole pad 3 has a porous and flexible material such as natural sponge so as to have air permeability and heat retention. Or a synthetic sponge rubber, or preferably a polyurethane foam that can be manufactured in large quantities at low cost. 3a is a large number of protrusions formed over substantially the entire area of the upper surface of the insole pad 3. In order to form the protrusions 3a, a desired depth is provided in the vertical and horizontal directions, for example, the thickness t of the insole pad 3 is 1 As shown in FIGS. 1 and 3, the periphery, for example, the front and rear, and the left and right sides of the insole pad 3 are surrounded by the substantially linear grooves 4 arranged at a depth of about ⅓ to 1/2. It is formed into a substantially rectangular parallelepiped or a substantially cube. In this embodiment, the insole pad 3 has a vertical length L ₁ of about 830 to 840 mm and a horizontal length L ₂ of about 1910 mm.
The thickness t is about 30 to 75 mm. The maximum depth of the groove 4 is about 40 mm, and the projection 3a of the substantially rectangular parallelepiped shown in FIG. 2 has a vertical length l ₁ of about 25 mm, a horizontal length l ₂ of about 25 mm, and a height. The h is formed to have a size of about 40 mm.

Reference numeral 5 denotes an air supply / exhaust means, and the air supply / exhaust means 5 is formed in a substantially linear shape at one side edge of the air cell 2.
Two pipes 6a, 6b in the connecting pipe 6 formed by arranging two pipes 6a, 6b in parallel, the air cell 2 corresponding to an odd number, and the air cell 2 corresponding to an even number
And connectors 7 and 7'for connecting (see FIGS. 1, 3 and 4).

As shown in FIG. 3, the connectors 7 and 7'are formed of a synthetic resin in a substantially T shape on the front surface. The air cells 2 correspond to odd numbers and the air cells 2 correspond to even numbers. Left and right pipe end portions 9a, 9a that are detachably fitted in notch holes 8 formed in the pipes 6a, 6b of the connection pipe 6 corresponding to one side end, and the pipe end portions 9a, 9a are omitted. It is formed of the tube end portion 9b provided at the center and connected to the odd-numbered air cells 2 or the even-numbered air cells 2. The length of the tube end 9b to the air cell 2 can be freely selected, and if necessary, a short tube for connection may be used to connect the tube end 9b and the air cell 2.

The air cells 2 arranged side by side in the longitudinal direction of the mat body 1 each time the air transfer circuit is different are supplied or exhausted from the air pump P at a predetermined time, and the odd numbered air cells are supplied. The 2 or even-numbered air cells 2 alternately repeat expansion or contraction. The time required for this air supply or exhaust is easily adjusted by controlling the air pump P at a set time by a timer, for example.

An embodiment of the present invention has the above-mentioned configuration,
In use, when a sick person operates the air pump P while lying on the mat body 1 laid on the bed, for example, when the air pump P has passed a predetermined time, for example, 5 minutes, the air transfer circuit is switched. Therefore, the odd-numbered air cells 2 and the even-numbered air cells 2 which are arranged in parallel in the length direction of the mat body 1 and have different transfer circuits are provided by, for example, the air blowing / exhausting action of the air pump P. Air is transferred or discharged every 5 minutes, and expansion or contraction is repeated alternately.

The insole pad 3 laid on the upper surface of the air cell 2 is made of a porous and flexible material, preferably polyurethane foam, and the upper surface thereof is formed, for example, as shown in FIGS. By arranging the grooves 4 having a substantially linear shape and having a desired depth in the vertical and horizontal directions, except for the surface facing the peripheral edge side of the insole pad 3, for example, by surrounding the front, rear, left, and right, the protrusion 3a of a substantially rectangular parallelepiped is formed. Since a large number of divided pads 3 are formed over almost the entire area of the floor pad 3, the body of a sick person or the like lying on the mat body 1 is supported by the large number of these divided protrusions 3a coming into surface contact.

Therefore, when the sick person is lying on the mat body 1, for example, the insole pad 3 is formed of a porous flexible material such as polyurethane foam, and the upper surface of the insole pad 3 is arranged vertically and horizontally. Since a large number of protrusions 3a divided by the substantially linear grooves 4 arranged in the upper surface are formed in substantially the entire upper surface, the insole pad follows the expansion and contraction of the air cell 2 for each transfer circuit. 3 faithfully changes to a substantially waveform. Therefore, the body position of the sick person is changed by smoothly moving the body weight in the longitudinal direction of the mat body 1, and the body pressure received from the mat body 1 is distributed locally without being concentrated at one location (FIG. 5). reference). In addition, since the blood circulation is promoted by exercising the air cell 2 and the insole pad 3 laid on the upper surface of the air cell 2 while lying down, pressure ulcer is reliably prevented.

Further, as shown in FIG. 6, for example, the upper half of the bed stands up at a desired angle, and the sick person raises the upper half of the body on the mat body 1 as necessary to perform a sitting up posture. And an odd number of air cells 2 that are alternately inflated or deflated, and a large number of divided protrusions 3a formed on substantially the entire upper surface of an insole pad 3 laid on the upper surfaces of the even numbered air cells 2. Since the body is supported by being in surface contact, even if the sick person supports his weight at a very narrow point near the ischial tubercle, the cell will be completely Never be crushed by. Therefore, the insole pad 3 can prevent the bottom of the patient's buttocks from being attached to the floor of the bed, for example.

At this time, when the sick person takes a gudge-up posture in which the inclination angle θ of the mat body 1 on the bed is, for example, 30 degrees or more, the sacrum K and the muscles move downward due to gravity, and The skin and subcutaneous tissue are fixed to the sheets S, and the body tries to slip off.
A large number of divided protrusions 3a formed over the entire upper surface of the base 3 have a desired depth vertically and horizontally, for example, a groove 4 having a depth of about 1/3 to 1/2 of the thickness t of the insole pad 3 vertically and horizontally. Since the insole pad 3 is formed into a substantially rectangular parallelepiped by surrounding the periphery, for example, the front, rear, left, and right, except for the surface facing the peripheral side of the insole pad 3, the weight of the sick person can be surely secured by the multiple protruding portions 3a. It is supported so that it can be prevented from slipping off, and fixing to the sheets S due to friction can be reduced. Moreover, as the odd-numbered air cells 2 and the even-numbered air cells 2 are alternately expanded or contracted every time the transfer circuit is changed, a large number of protruding portions 3a supporting the body are formed on the insole pad 3 as well. Of the protrusion 3a that changes into a substantially corrugated shape and supports the body through the groove 4 around the depth of about 1/3 to 1/2 of the thickness t of
As a result of being separated by the groove 4, since there is no need to be affected by the other protruding portions 3a, the weight is smoothly transferred, and the body pressure is reliably and efficiently distributed to the air mat 2 to release the pressure. Is done. Therefore, the blood vessel from the muscle to the skin is not stretched or twisted to block the blood vessel, and the tissue ischemia does not occur. For this reason, it is possible to reliably prevent the pressure sore from occurring even when the sick person or the like takes the gudge-up posture with the inclination angle θ of 30 degrees or more for a long time on the mat body 1.

FIG. 7 shows another embodiment of the present invention. In the above-described embodiment, a large number of projections 3a divided into substantially the entire upper surface of the insole pad 3 are formed vertically and horizontally. The protruding portion 3a is formed so as to surround the substantially linear groove 4 except for the surface facing the peripheral edge side of the mat body 1, for example, the front, rear, left and right sides, but in this embodiment, the groove 4 is formed.
By arranging the recesses 4'in succession in two substantially diagonal directions instead of, the surroundings, for example, the front, back, left and right are surrounded by the recesses 4 ', except for the surface facing the peripheral edge side of the insole pad 3, and A plurality of divided substantially rectangular parallelepiped or substantially cubical projections 3 a having a larger porosity than the groove 4 are formed. When the sick person lays his body on the mat main body 1 and when the upper body takes a sitting posture by gadget up, the sick person and the like are placed on the upper surface of the insole pad 3 laid on the upper surface of the air mat 2. By supporting a large number of protrusions 3a formed over substantially the entire surface in a state where the porosity is large, the body pressure is dispersed and the movement and friction of the sheets S are prevented, so that the occurrence of pressure ulcer is surely prevented.

In each of the above-mentioned embodiments, the arrangement of the air cells 2 having different transfer circuits is alternately arranged to alternately expand or contract, but the present invention is not limited to this, and the transfer circuits are arranged every two or three. You may make it repeat expansion or contraction for every several pieces.

Further, by providing a small hole in the air cell 2 of the above-mentioned embodiment, it is possible to blow out air to dry sweat, and to eliminate odors such as body odor, for example, in summer.

In the above description, the air mat 2
I didn't use any cushioning mat on the underside of
A mat such as urethane foam or a fibrous material such as cotton may be polymerized and laid on the air cell 2.

[0025]

INDUSTRIAL APPLICABILITY As described above, according to the present invention, when a bedridden patient takes a gadget-up posture for a long time, the so-called bottom-bottoming phenomenon of the buttocks is prevented and the occurrence of pressure ulcer can be reliably prevented. Even if the air cell expands or contracts, the insole pad moves integrally with the air cell and changes, so wrinkles, turning up, and steps are not formed on the insole pad, and you may feel tired when sleeping. It can guarantee a deep and refreshing sleep, and can be folded at the time of storage easily, and can be manufactured at low cost.

[Brief description of drawings]

FIG. 1 is a partially cutaway perspective view showing an embodiment of the present invention.

FIG. 2 is likewise an enlarged perspective view of the main part.

FIG. 3 is an exploded perspective view showing an example of a connection state of a connection pipe and a connector of the air supply / exhaust means used in this embodiment as seen from the back surface.

FIG. 4 is a sectional view of the same.

FIG. 5 is a sectional view showing an example of a use state in which a sick person or the like is lying on the mat body.

FIG. 6 is a front view showing an example of a usage state in which the mat body is gudged up.

FIG. 7 is a perspective view showing another embodiment of the present invention.

[Explanation of symbols]

 1 mat body 2 air cell 3 insole pad 3a protrusion 4 groove 4'recess 5 air supply / exhaust means 6 connecting pipe 6a pipe 6b pipe 7 connector 7'connector 8 notch P air pump

Claims (5)

[Claims] 1. An air cell arranged in parallel in the length direction of the mat main body for each different air transfer circuit, and a valve at predetermined time intervals so that the air cell is repeatedly expanded or contracted for each air transfer circuit. In an air mat for medical use consisting of an air pump that switches or feeds or discharges air, and an insole pad laid on the air cell and formed of a material having porous flexibility, the insole pad is A medical air mat, characterized in that a large number of divided protrusions surrounded by grooves of a desired depth are formed over substantially the entire upper surface. 2. The medical air mat according to claim 1, wherein the insole pad is formed of any one of polyurethane foam, natural sponge, and synthetic sponge rubber. 3. The protrusion is formed in a substantially rectangular parallelepiped shape or a substantially cubic shape by arranging the grooves in a substantially linear shape in a vertical and horizontal direction to a desired depth. The medical air mat described. 4. The groove is a recess, and the protrusion is formed into a substantially rectangular parallelepiped or a substantially cube by arranging the recesses continuously in a substantially diagonal direction. Item 3. The medical air mat according to Item 2. 5. The depth of the groove is formed to be about ⅓ to ½ of the thickness of the insole pad, or claim 2, claim 3, or claim 3. Item 5. The medical air mat according to any one of items 4.