CN221180875U - Medical mattress core and medical mattress - Google Patents

Abstract

The utility model relates to the technical field of medical auxiliary supplies, in particular to a medical mattress core and a medical mattress, wherein the medical mattress core comprises: seven areas are arranged on the supporting layer: a first zone, a second zone, a third zone, a fourth zone, a fifth zone, a sixth zone, and a seventh zone; each area is provided with a decompression groove; the first zone, the second zone and the third zone are respectively symmetrical with the seventh zone, the sixth zone and the fifth zone in length and the arrangement of the decompression groove about the center line of the fourth zone; the second region corresponds to a head-shoulder-chest region; the third region corresponds to the waist region; the fourth region corresponds to the sacral caudal region in the supine position, the femoral tuberosity region in the lateral position, or the genital region in the prone position; the sixth zone corresponds to the foot region; the pressure is reduced on the supporting layer according to the body part partition, and pressure sores are prevented. And the symmetrical design is adopted, the head and the tail are alternately used, and the service life is prolonged.

Description

Medical mattress core and medical mattress

Technical Field

The utility model relates to the technical field of medical auxiliary supplies, in particular to a medical mattress core and a medical mattress.

Background

Pressure sores, also known as pressure ulcers or bedsores, are conditions of tissue damage and necrosis caused by prolonged compression of local tissue, persistent ischemia, hypoxia, and malnutrition. Pressure sores have the characteristics of high incidence, difficult treatment and easy recurrence. Internationally, pressure sores are listed as a common problem that causes serious injury to patients. By 2022, the number of patients lying in bed for a long time in China is up to four tens of millions; among them, pressure sores are one of the main causes of death of patients lying in bed for a long time, and bring heavy burden to patients and society.

Continuous compression is a key factor in the formation of pressure sores, and mattresses made of polyurethane materials can perform a certain decompression function. The pressure on the mattress is different in each position of human body, but the material of mattress adopts evenly distributed generally, and the pressure ratio of mattress to waist region, pelvis area and thigh area is great, hardly avoids or slows down the emergence of pressure sore.

Disclosure of utility model

Therefore, the technical problem to be solved by the utility model is to overcome the defect that the mattress is generally uniformly distributed in material, the pressure ratio of the mattress to the waist area, the pelvis area and the thigh area is large, and the occurrence of pressure sores is difficult to avoid or slow down.

To overcome the above-described drawbacks, the present utility model provides a medical mattress core comprising:

a decompression layer;

The support layer is positioned below the pressure reducing layer and is connected with the pressure reducing layer; seven areas are sequentially arranged on the top surface of the supporting layer; the seven areas are arranged along the length direction of the supporting layer; a plurality of decompression grooves are arranged in each area; the decompression groove is arranged along the width direction of the supporting layer; the seven areas are a first area, a second area, a third area, a fourth area, a fifth area, a sixth area and a seventh area respectively; the fourth area is positioned in the middle, and the first area, the second area and the third area are respectively symmetrical with the seventh area, the sixth area and the fifth area in length and the arrangement mode of the decompression groove relative to the central line of the fourth area along the width direction; the distance between adjacent decompression grooves in the first area is 65-85 mm; the depth of the decompression groove of the first area is 25-35 mm; the distance between adjacent decompression grooves in the second area is 50-70 mm; the depth of the decompression groove of the second area is gradually changed in a gradient manner that the depth is increased and then reduced along the length direction of the supporting layer; the distance between adjacent decompression grooves in the third area is 65-85 mm; the depth of the decompression groove in the third area is 25-35 mm; the distance between adjacent decompression grooves of the fourth region is gradually changed in a gradient manner that the distance is increased and then reduced along the length direction of the supporting layer; the depth of the decompression groove in the fourth area is 35-45 mm; the second region corresponds to a head-shoulder-chest region; the third zone corresponds to a waist region; the fourth region corresponds to a sacral caudal region in a supine position, a femoral tuberosity region in a lateral position, or a genital region in a prone position; the sixth zone corresponds with a foot region;

and the protective layer is positioned below the supporting layer and is connected with the supporting layer.

Optionally, the second region is sequentially divided into a second first sub-region, a second third sub-region, a second fourth sub-region and a second fifth sub-region along the length direction of the supporting layer; the depth of the decompression groove of the second first subarea is 35-45 mm; the depth of the decompression groove of the second sub-zone is 45-55 mm; the depth of the decompression groove of the second third subarea is 55-65 mm; the depth of the decompression groove of the second fourth subarea is 45-55 mm; the depth of the decompression groove of the second fifth subarea is 35-45 mm;

The fourth region is sequentially divided into a fourth first sub-region, a fourth second sub-region and a fourth third sub-region along the length direction of the supporting layer; the distance between adjacent decompression grooves in the fourth sub-zone is 50-60 mm; the distance between adjacent decompression grooves of the fourth sub-zone is 70-80 mm; the distance between adjacent decompression grooves in the fourth sub-zone is 50-60 mm.

Optionally, the bottom of the section of the decompression groove is a semicircular arc; the radius of the semicircle is 1-10 mm.

Optionally, the length of the first region is 220-240 mm; the length of the second region is 350-370mm; the length of the third zone is 290-310 mm; the length of the fourth zone is 175-195 mm.

Optionally, a plurality of grooves which are arranged in parallel are arranged on the upper surface of the decompression layer; the grooves are provided along the width direction of the pressure-reducing layer.

Optionally, the supporting layer and the decompression layer are connected by glue adhesion; the protective layer is connected with the supporting layer through glue adhesion.

Optionally, the material of the decompression layer is a memory sponge.

Optionally, the material of the supporting layer is polyurethane.

Optionally, the material of the protective layer is sponge; the hardness of the sponge is greater than that of the memory sponge, and the hardness of the sponge is greater than that of the polyurethane.

The utility model also provides a medical mattress comprising:

the medical mattress core.

Compared with the prior art, the technical scheme of the utility model has the following advantages:

1. The present utility model provides a medical mattress core comprising: a decompression layer; the support layer is positioned below the pressure reducing layer and is connected with the pressure reducing layer; seven areas are sequentially arranged on the top surface of the supporting layer; the seven areas are arranged along the length direction of the supporting layer; a plurality of decompression grooves are arranged in each area; the decompression groove is arranged along the width direction of the supporting layer; the seven areas are a first area, a second area, a third area, a fourth area, a fifth area, a sixth area and a seventh area respectively; the fourth area is positioned in the middle, and the first area, the second area and the third area are respectively symmetrical with the seventh area, the sixth area and the fifth area in length and the arrangement mode of the decompression groove relative to the central line of the fourth area along the width direction; the distance between adjacent decompression grooves in the first area is 65-85 mm; the depth of the decompression groove of the first area is 25-35 mm; the distance between adjacent decompression grooves in the second area is 50-70 mm; the depth of the decompression groove of the second area is gradually changed in a gradient manner that the depth is increased and then reduced along the length direction of the supporting layer; the distance between adjacent decompression grooves in the third area is 65-85 mm; the depth of the decompression groove in the third area is 25-35 mm; the distance between adjacent decompression grooves of the fourth region is gradually changed in a gradient manner that the distance is increased and then reduced along the length direction of the supporting layer; the depth of the decompression groove in the fourth area is 35-45 mm; the second region corresponds to a head-shoulder-chest region; the third zone corresponds to a waist region; the fourth region corresponds to a sacral caudal region in a supine position, a femoral tuberosity region in a lateral position, or a genital region in a prone position; the sixth zone corresponds with a foot region; the protective layer is positioned below the supporting layer and is connected with the supporting layer; by adopting the technical scheme, the pressure reducing grooves are arranged on the supporting layer at positions corresponding to the head-shoulder chest region, the waist region, the sacro-caudal region, the thighbone tuberosity region, the genitals region and the foot region for pressure reduction, so that the pressure reduction is realized according to the body part partition; not only can effectively decompress, but also can disperse hot flashes of the body and keep the skin dry and comfortable, thereby achieving the purposes of preventing pressure sores and slowing down the further occurrence of the pressure sores; so that the patient feels comfortable. In addition, in consideration of the requirement of hospitals on the service life of products, the medical mattress core is symmetrically designed, the medical mattress core is not separated from the head to the tail, the head and the tail can be alternately used, and the service life of the medical mattress core is prolonged to the greatest extent. In addition, clinically, the occipital bone and the scapula of the patient are pressure sore high hair areas in the supine position, the forehead, the mandible, the elbow and the chest areas are pressure sore high hair areas in the prone position, and the ear wings and the shoulder elbows are pressure sore high hair areas in the lateral position. Thus, in combination, the head-shoulder chest area should be relieved of pressure, so that smaller spaced relief slots are used in the second area to achieve relief and heat dissipation. Pressure sores occur relatively low in the lumbar region, so a larger spacing of pressure relief grooves is employed in the corresponding third region. Because the medical mattress core is symmetrically distributed along the central line of the width direction by the fourth area, the second area corresponding to the head shoulder chest area is just symmetrical with the sixth area corresponding to the foot area; therefore, the design of the decompression grooves in the second area and the sixth area can disperse the pressure of the foot to the maximum extent and avoid pressure sores of the heel and the ankle.

2. The second area is sequentially divided into a second first subarea, a second third subarea, a second fourth subarea and a second fifth subarea along the length direction of the supporting layer; the depth of the decompression groove of the second first subarea is 35-45 mm; the depth of the decompression groove of the second sub-zone is 45-55 mm; the depth of the decompression groove of the second third subarea is 55-65 mm; the depth of the decompression groove of the second fourth subarea is 45-55 mm; the depth of the decompression groove of the second fifth subarea is 35-45 mm; the fourth region is sequentially divided into a fourth first sub-region, a fourth second sub-region and a fourth third sub-region along the length direction of the supporting layer; the distance between adjacent decompression grooves in the fourth sub-zone is 50-60 mm; the distance between adjacent decompression grooves of the fourth sub-zone is 70-80 mm; the distance between adjacent decompression grooves in the fourth sub-zone is 50-60 mm; by adopting the technical scheme, the sacral caudal region in the supine position, the femur tuberosity region in the lateral position and the genital region in the prone position are pressure sore high-incidence regions, so that a pressure reducing groove with smaller interval is adopted in the fourth region, and the effects of pressure reduction and heat dissipation are achieved.

3. The upper surface of the decompression layer is provided with a plurality of grooves which are arranged in parallel; the grooves are arranged along the width direction of the decompression layer; by adopting the technical scheme, the pressure distribution effect is enlarged and the pressure reduction effect is improved by arranging the grooves.

4. The material of the decompression layer is memory sponge; by adopting the technical scheme, the pressure is dispersed and the contact area is increased by arranging the decompression layer made of the memory sponge.

5. The material of the supporting layer is polyurethane; according to the technical scheme, the supporting layer is made of polyurethane, so that the pressure is redistributed to a larger area, the pressure injury to a certain part of a body in a certain time is reduced, the pressure dispersion is finally realized, the stability is enhanced, the pressure of the apophyma part of a patient is effectively dispersed, the pain of the patient is reduced, the clinical matching degree of the patient is improved, and the function of preventing pressure sores is realized.

6. The material of the protective layer is sponge; the hardness of the sponge is greater than that of the memory sponge, and the hardness of the sponge is greater than that of the polyurethane; by adopting the technical scheme, the whole medical mattress core is stably supported by arranging the protective layer made of the sponge with higher hardness.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic side view of a medical mattress core provided in an embodiment of the utility model.

Reference numerals illustrate:

1. A decompression layer; 2. a support layer; 3. a protective layer; 4. a decompression tank; 5. a groove; 6. a first zone; 7. a second zone; 8. a third zone; 9. a fourth zone; 10. a fifth zone; 11. a sixth zone; 12. and a seventh zone.

Detailed Description

The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In addition, the technical features of the different embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.

The mattress made of polyurethane material is closely contacted with the mattress in the lumbar region, the pelvis region and the thigh region, has poor air permeability and is easy to form a hot-tidal environment, thereby accelerating the occurrence of pressure sores. In addition, most of household bionic mattresses in the market are clear in head-to-tail design and high in price; but the service life of the mattress is greatly reduced. Also for the foregoing reasons, the present application provides an improved medical mattress core.

One embodiment of a medical mattress core as shown in fig. 1, comprises: the decompression layer 1, the supporting layer 2 and the protection layer 3 are connected in sequence. Specifically, the supporting layer 2 is connected with the decompression layer 1 through glue adhesion; the protective layer 3 is connected with the supporting layer 2 through glue adhesion. The material of the decompression layer 1 is a memory sponge, which is also called slow rebound memory foam. The material of the supporting layer 2 is polyurethane, and specifically, the polyurethane is high-resilience polyurethane. The material of the protective layer 3 is sponge; the hardness of the sponge is greater than that of the memory sponge, and the hardness of the sponge is greater than that of the polyurethane; i.e. the sponge is a high-hardness sponge. The thickness of the decompression layer 1 is 20-40 mm; the thickness of the supporting layer 2 is 270-90 mm, and the thickness of the protective layer 3 is 25-45 mm.

The support layer 2 is located below the pressure reducing layer 1. A plurality of grooves 5 which are arranged in parallel are arranged on the upper surface of the decompression layer 1; the grooves 5 are provided in the width direction of the pressure-reducing layer 1.

Seven areas are sequentially arranged on the top surface of the supporting layer 2; the seven areas are arranged along the length direction of the supporting layer 2; a plurality of decompression grooves 4 are arranged in each area; the decompression groove 4 is arranged along the width direction of the supporting layer 2; specifically, the bottom of the section of the decompression tank 4 is a semicircular arc; the radius of the semicircle is 1-10 mm. The grooves 5 and the relief grooves 4 may be cut using a three-dimensional laser cutting technique.

The seven areas are a first area 6, a second area 7, a third area 8, a fourth area 9, a fifth area 10, a sixth area 11 and a seventh area 12 respectively; the fourth zone 9 is located in the middle, and the first zone 6, the second zone 7 and the third zone 8 are respectively symmetrical to the seventh zone 12, the sixth zone 11 and the fifth zone 10 in terms of length and the arrangement mode of the decompression slot 4 about the central line of the fourth zone 9 along the width direction; the length of the first zone 6 is 220-240 mm; the length of the second zone 7 is 350-370 mm; the length of the third zone 8 is 290-310 mm; the length of the fourth zone 9 is 175-195 mm.

The distance between adjacent decompression grooves 4 of the first zone 6 is 65-85 mm; the depth of the decompression groove 4 of the first zone 6 is 25-35 mm; the distance between the adjacent decompression grooves 4 of the second zone 7 is 50-70 mm; the depth of the decompression slot 4 of the second region 7 is a gradual gradient change which is increased and then decreased along the length direction of the supporting layer 2; specifically, the second region 7 is sequentially divided into a second first sub-region, a second sub-region, a second third sub-region, a second fourth sub-region and a second fifth sub-region along the length direction of the supporting layer 2; the depth of the decompression groove 4 of the second first subarea is 35-45 mm; the depth of the decompression groove 4 of the second sub-zone is 45-55 mm; the depth of the decompression groove 4 in the second third subarea is 55-65 mm; the depth of the decompression groove 4 in the second fourth subarea is 45-55 mm; the depth of the decompression groove 4 in the second fifth subarea is 35-45 mm.

The distance between adjacent decompression grooves 4 of the third zone 8 is 65-85 mm; the depth of the decompression groove 4 of the third zone 8 is 25-35 mm; the distance between adjacent decompression grooves 4 of the fourth region 9 is a gradual gradient change which is increased and then decreased along the length direction of the supporting layer 2; specifically, the fourth region 9 is sequentially divided into a fourth first sub-region, a fourth second sub-region and a fourth third sub-region along the length direction of the supporting layer 2; the distance between adjacent decompression grooves 4 in the fourth sub-area is 50-60 mm; the distance between adjacent decompression grooves 4 in the fourth sub-zone is 70-80 mm; the distance between adjacent decompression grooves 4 in the fourth sub-zone is 50-60 mm. The depth of the decompression tank 4 in the fourth zone 9 is 35-45 mm.

The second region 7 corresponds to a head-shoulder-chest region. Clinically, the occipital bone and the scapula of a patient in the supine position are pressure sore high hair areas, the forehead, the mandible, the elbow and the chest areas in the prone position are pressure sore high hair areas, and the ear wings and the shoulder elbows are pressure sore high hair areas in the lateral position. Thus, in combination, the head-shoulder chest area should be severely depressurized, so that a smaller spacing of depressurization grooves 4 is employed in the second region 7 to achieve the depressurization and heat dissipation effects.

The third zone 8 corresponds to the waist region; the incidence of pressure sores in the lumbar region is relatively low, so that a larger spacing of the pressure relief grooves 4 is employed in the corresponding third zone 8.

The fourth region 9 corresponds to a sacral caudal region in a supine position, a femoral tuberosity region in a lateral position, or a genital region in a prone position; since the sacral caudal region in the supine position, the femoral tuberosity region in the lateral position, and the genital region in the prone position are all pressure sore high-rise regions, a pressure reducing groove 4 with a smaller pitch is used in the fourth region 9 to achieve the effects of pressure reduction and heat dissipation. The sixth zone 11 corresponds with the foot area. Since the medical mattress core is symmetrically distributed along the center line of the width direction by the fourth area, the second area 7 corresponding to the head shoulder chest area is just symmetrical with the sixth area 11 corresponding to the foot area; therefore, the design of the decompression slot 4 in the second area 7 and the sixth area 11 can disperse the pressure of the foot to the maximum extent, and avoid pressure sores of the heel and the ankle.

The protective layer 3 is located below the support layer 2.

The utility model also provides a medical mattress comprising: the medical mattress core.

The medical mattress core is a high-specification medical mattress core, and the medical mattress is a high-specification medical mattress. "high gauge" means that the mattress has the function of preventing pressure sores. Correspondingly, "non-high gauge" refers to a normal sleep mattress without any function. The above description is described with reference to the uk national institute of health and clinical optimisation, 2014 edition of guidelines. The high specification of the utility model is embodied in high quality foam, cutting technology, decompression technology and bionic design. The high quality foam refers to: the material of the support layer 2 is polyurethane. Generally, high density exhibits long life; high tear strength shows strong adaptability. The cutting technique refers to: the grooves 5 and the decompression grooves 4 are cut by three-dimensional laser cutting technology. The decompression technique refers to: the decompression layer 1 is made of memory sponge, and pressure is dispersed to the maximum extent. The bionic design refers to: the pressure reducing groove 4 is designed according to the body part partition, the groove 5 and the pressure reducing groove 4 can be used as unique ventilation channels, and the pressure reducing effect and the comfort level can be better matched by the layered combination of the pressure reducing layer 1, the supporting layer 2 and the protective layer 3. The design of the high specification can prevent the occurrence of pressure sores to the greatest extent or prevent the existing pressure sores from further deteriorating, and has good pressure reducing effect in the pressure test of similar mattresses.

It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. And obvious variations or modifications thereof are contemplated as falling within the scope of the present utility model.

Claims (10)

1. A medical mattress core, comprising:

a pressure-reducing layer (1);

The support layer (2) is positioned below the pressure reducing layer (1), and the support layer (2) is connected with the pressure reducing layer (1); seven areas are sequentially arranged on the top surface of the supporting layer (2); the seven areas are arranged along the length direction of the supporting layer (2); a plurality of decompression grooves (4) are arranged in each area; the decompression groove (4) is arranged along the width direction of the supporting layer (2); the seven areas are respectively a first area (6), a second area (7), a third area (8), a fourth area (9), a fifth area (10), a sixth area (11) and a seventh area (12); the fourth zone (9) is positioned in the middle, and the first zone (6), the second zone (7) and the third zone (8) are respectively symmetrical with the seventh zone (12), the sixth zone (11) and the fifth zone (10) along the central line of the fourth zone (9) along the width direction in the length direction and the arrangement mode of the decompression groove (4); the distance between adjacent decompression grooves (4) of the first zone (6) is 65-85 mm; the depth of the decompression groove (4) of the first zone (6) is 25-35 mm; the distance between adjacent decompression grooves (4) of the second zone (7) is 50-70 mm; the depth of the decompression groove (4) of the second region (7) is a gradual gradient change which is increased and then decreased along the length direction of the supporting layer (2); the distance between adjacent decompression grooves (4) of the third zone (8) is 65-85 mm; the depth of the decompression groove (4) of the third zone (8) is 25-35 mm; the distance between adjacent decompression grooves (4) of the fourth region (9) is a gradual gradient change which is increased and then decreased along the length direction of the supporting layer (2); the depth of the decompression groove (4) of the fourth zone (9) is 35-45 mm; -said second zone (7) corresponds to a head-shoulder-chest region; the third zone (8) corresponds to a waist region; the fourth region (9) corresponds to a sacral caudal region in a supine position, a femoral tuberosity region in a lateral position or a genital region in a prone position; the sixth zone (11) corresponds to a foot region;

And the protective layer (3) is positioned below the supporting layer (2), and the protective layer (3) is connected with the supporting layer (2).

2. The medical mattress core of claim 1, wherein the medical mattress core comprises,

The second region (7) is sequentially divided into a second first sub-region, a second sub-region, a second third sub-region, a second fourth sub-region and a second fifth sub-region along the length direction of the supporting layer (2); the depth of the decompression groove (4) of the second first subarea is 35-45 mm; the depth of the decompression groove (4) of the second sub-zone is 45-55 mm; the depth of the decompression groove (4) of the second third subarea is 55-65 mm; the depth of the decompression groove (4) in the second fourth subarea is 45-55 mm; the depth of the decompression groove (4) in the second fifth subarea is 35-45 mm;

The fourth region (9) is sequentially divided into a fourth first sub-region, a fourth second sub-region and a fourth third sub-region along the length direction of the supporting layer (2); the distance between adjacent decompression grooves (4) of the fourth sub-area is 50-60 mm; the distance between adjacent decompression grooves (4) of the fourth sub-zone is 70-80 mm; the distance between adjacent decompression grooves (4) of the fourth sub-zone is 50-60 mm.

3. A medical mattress core according to claim 1, characterized in that the cross-sectional bottom of the decompression slot (4) is a semicircle; the radius of the semicircle is 1-10 mm.

4. A medical mattress core according to claim 1, characterized in that the length of the first zone (6) is 220-240 mm; the length of the second zone (7) is 350-370 mm; the length of the third zone (8) is 290-310 mm; the length of the fourth zone (9) is 175-195 mm.

5. A medical mattress core according to any of claims 1-4, characterized in that a plurality of parallel arranged grooves (5) are provided in the upper surface of the pressure-reducing layer (1); the grooves (5) are arranged along the width direction of the decompression layer (1).

6. The medical mattress core according to any of claims 1-4, characterized in that the support layer (2) and the pressure-reducing layer (1) are adhesively connected by means of glue; the protective layer (3) is connected with the supporting layer (2) through glue adhesion.

7. A medical mattress core according to any of claims 1-4, characterized in that the material of the pressure-reducing layer (1) is a memory sponge.

8. A medical mattress core according to claim 7, characterized in that the material of the support layer (2) is polyurethane.

9. A medical mattress core according to claim 8, characterized in that the material of the protective layer (3) is sponge; the hardness of the sponge is greater than that of the memory sponge, and the hardness of the sponge is greater than that of the polyurethane.

10. A medical mattress, comprising:

The medical mattress core of any one of claims 1-9.