Cushion for preventing pressure sore
The present invention relates to a cushion for preventing pressure sore. The cushion for preventing pressure sore includes an air cell layer, an air passage layer, a base layer, and a plurality of air ducts. The air cell layer has a plurality of air cells; the air cell layer is divided into at least four air cell zones. Air cells in each air cell zone are in communication with each other, but air cells in any two adjacent air cell zones are not in communication with each other; the air passage layer is under the air cell layer and has a plurality of air passages therein. Each air passage is in connection and communication with at least one of the air cell zones; the air passage layer and the air cell layer are disposed on the base layer; an end of each air duct is in communication with a corresponding air passage, and the other end extends out of the cushion and is provided with a joint; and each air duct has a respective valve. The cushion for preventing pressure sore according to the present invention can intermittently exert pressure over human buttocks, thereby effectively preventing pressure sores.
1. A cushion for preventing pressure sore, comprising:
an air cell layer, having a plurality of air cells and being divided into at least four air cell zones, air cells in each air cell zone being in communication with each other, but air cells in any two adjacent air cell zones being not in communication with each other;
an air passage layer, located under the air cell layer and having a plurality of air passages therein, each air passage being connected to and in communication with at least one of the air cell zones;
a base layer, the air passage layer and the air cell layer being disposed on the base layer; and
a plurality of air ducts, an end of each air duct being in communication with a corresponding air passage, and the other end extending out of the cushion and being provided with a joint, and each air duct having a respective valve;
wherein the number of the air passages is less than the number of the air cell zones, and
wherein the air cells in the air cell layer are organized into an A air cell zone, a B air cell zone, a C air cell zone, a D air cell zone, and an E air cell zone as arranged in an array below; the air passage layer has a first air passage, a second air passage, and a third air passage therein; the first air passage is in connection and communication with the A air cell zone and the C air cell zone, the second air passage is in connection and communication with the B air cell zone and the D air cell zone, and the third air passage is in connection and communication with the E air cell zone; the array is shown as follows:
[
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
A
A
A
A
A
B
B
B
B
B
A
A
A
A
A
B
B
B
B
B
A
A
A
A
A
B
B
B
B
B
A
A
A
A
A
B
B
B
B
B
D
D
D
D
D
C
C
C
C
C
D
D
D
D
D
C
C
C
C
C
D
D
D
D
D
C
C
C
C
C
D
D
D
D
D
C
C
C
C
C
]
.
2. The cushion for preventing pressure sore according to claim 1 , wherein the plurality of air ducts is disposed in the air passage layer or in the base layer.
3. The cushion for preventing pressure sore according to claim 2 , further comprising an inflating device and a deflating device, wherein the inflating device and deflating device are connected to the joint of the air ducts.
4. The cushion for preventing pressure sore according to claim 3 , further comprising a control device, wherein the control device is electrically connected to the valve on the air duct, and is electrically connected to the inflating device and deflating device, so as to control the inflating device to inflate the air duct, or control the deflating device to deflate the air duct.
5. The cushion for preventing pressure sore according to claim 1 , wherein each air cell in the air cell layer is a columnar air cell; the columnar air cell comprises a columnar outer casing layer and an air cell column disposed in the outer casing layer; a hydrogel layer is disposed at the top of the air cell column, a sealing layer is disposed between the top of the air cell column and the hydrogel layer, and air is filled in space among the outer casing layer, the air cell column, and the sealing layer.
6. A cushion for preventing pressure sore, comprising:
an air cell layer, having a plurality of air cells and being divided into at least four air cell zones, air cells in each air cell zone being in communication with each other, but air cells in any two adjacent air cell zones being not in communication with each other;
an air passage layer, located under the air cell layer and having a plurality of air passages therein, each air passage being connected to and in communication with at least one of the air cell zones;
a base layer, the air passage layer and the air cell layer being disposed on the base layer; and
a plurality of air ducts, an end of each air duct being in communication with a corresponding air passage, and the other end extending out of the cushion and being provided with a joint, and each air duct having a respective valve;
wherein the number of the air passages is less than the number of the air cell zones, and
wherein the air cells in the air cell layer are organized into an A1 air cell zone, an A2 air cell zone, an A3 air cell zone, an A4 air cell zone, a B1 air cell zone, a B2 air cell zone, a B3 air cell zone, a B4 air cell zone, a C air cell zone, a D air cell zone and an E air cell zone as arranged in an array below; the air passage layer has a first air passage, a second air passage, a third air passage, a fourth air passage, and a fifth air passage therein; the first air passage is in connection and communication with the A1, A2, A3, and A4 air cell zones, the second air passage is in connection and communication with the B1, B2, B3, and B4 air cell zones, the third air passage is in connection and communication with the C air cell zone, the fourth air passage is in connection and communication with the D air cell zone, and the fifth air passage is in connection and communication with the E air cell zone; the array is shown as follows:
[
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
A
4
A
4
A
4
A
4
A
4
B
4
B
4
B
4
B
4
B
4
A
4
A
4
A
4
A
4
A
4
B
4
B
4
B
4
B
4
B
4
B
3
B
3
B
3
B
3
B
3
A
3
A
3
A
3
A
3
A
3
B
3
B
3
B
3
B
3
B
3
A
3
A
3
A
3
A
3
A
3
A
1
A
1
D
D
D
D
D
D
B
1
B
1
A
1
A
1
D
D
D
D
D
D
B
1
B
1
A
1
A
1
B
2
B
2
C
C
A
2
A
2
B
1
B
1
A
1
B
2
B
2
B
2
C
C
A
2
A
2
A
2
B
1
]
.
7. The cushion for preventing pressure sore according to claim 6 , wherein the plurality of air ducts is disposed in the air passage layer or in the base layer.
8. The cushion for preventing pressure sore according to claim 7 , further comprising an inflating device and a deflating device, wherein the inflating device and deflating device are connected to the joint of the air ducts.
9. The cushion for preventing pressure sore according to claim 8 , further comprising a control device, wherein the control device is electrically connected to the valve on the air duct, and is electrically connected to the inflating device and deflating device, so as to control the inflating device to inflate the air duct, or control the deflating device to deflate the air duct.
10. The cushion for preventing pressure sore according to claim 6 , wherein each air cell in the air cell layer is a columnar air cell; the columnar air cell comprises a columnar outer casing layer and an air cell column disposed in the outer casing layer; a hydrogel layer is disposed at the top of the air cell column, a sealing layer is disposed between the top of the air cell column and the hydrogel layer, and air is filled in space among the outer casing layer, the air cell column, and the sealing layer.
11. A cushion for preventing pressure sore, comprising:
an air cell layer, having a plurality of air cells and being divided into at least four air cell zones, air cells in each air cell zone being in communication with each other, but air cells in any two adjacent air cell zones being not in communication with each other;
an air passage layer, located under the air cell layer and having a plurality of air passages therein, each air passage being connected to and in communication with at least one of the air cell zones;
a base layer, the air passage layer and the air cell layer being disposed on the base layer; and
a plurality of air ducts, an end of each air duct being in communication with a corresponding air passage, and the other end extending out of the cushion and being provided with a joint, and each air duct having a respective valve;
wherein the number of the air passages is less than the number of the air cell zones, and
wherein the air cells in the air cell layer are organized into an A1 air cell zone, an A2 air cell zone, an A3 air cell zone, a B1 air cell zone, a B2 air cell zone, a B3 air cell zone, a C air cell zone, a D air cell zone, an E air cell zone, and an F air cell zone as arranged in an array below; the air passage layer has a first air passage, a second air passage, a third air passage, a fourth air passage, a fifth air passage and a sixth air passage therein; the first air passage is in connection and communication with the A1, A2, and A3 air cell zones, the second air passage is in connection and communication with the B1, B2, and B3 air cell zones, the third air passage is in connection and communication with the C air cell zone, the fourth air passage is in connection and communication with the D air cell zone, the fifth air passage is in connection and communication with the E air cell zone, and the sixth air passage is in connection and communication with the F air cell zone; the array is shown as follows:
[
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
A
3
A
3
A
3
A
3
A
3
B
3
B
3
B
3
B
3
B
3
A
3
A
3
A
3
A
3
A
3
B
3
B
3
B
3
B
3
B
3
B
2
B
2
B
2
B
2
B
2
A
2
A
2
A
2
A
2
A
2
B
2
B
2
B
2
B
2
B
2
A
2
A
2
A
2
A
2
A
2
A
1
A
1
C
C
C
D
D
D
B
1
B
1
A
1
A
1
C
C
C
D
D
D
B
1
B
1
A
1
A
1
C
C
F
F
D
D
B
1
B
1
A
1
C
C
C
F
F
D
D
D
B
1
]
.
12. The cushion for preventing pressure sore according to claim 11 , wherein the plurality of air ducts is disposed in the air passage layer or in the base layer.
13. The cushion for preventing pressure sore according to claim 12 , further comprising an inflating device and a deflating device, wherein the inflating device and deflating device are connected to the joint of the air ducts.
14. The cushion for preventing pressure sore according to claim 13 , further comprising a control device, wherein the control device is electrically connected to the valve on the air duct, and is electrically connected to the inflating device and deflating device, so as to control the inflating device to inflate the air duct, or control the deflating device to deflate the air duct.
15. The cushion for preventing pressure sore according to claim 11 , wherein each air cell in the air cell layer is a columnar air cell; the columnar air cell comprises a columnar outer casing layer and an air cell column disposed in the outer casing layer; a hydrogel layer is disposed at the top of the air cell column, a sealing layer is disposed between the top of the air cell column and the hydrogel layer, and air is filled in space among the outer casing layer, the air cell column, and the sealing layer.
16. A cushion for preventing pressure sore, comprising:
an air cell layer, having a plurality of air cells and being divided into at least four air cell zones, air cells in each air cell zone being in communication with each other, but air cells in any two adjacent air cell zones being not in communication with each other;
an air passage layer, located under the air cell layer and having a plurality of air passages therein, each air passage being connected to and in communication with at least one of the air cell zones;
a base layer, the air passage layer and the air cell layer being disposed on the base layer; and
a plurality of air ducts, an end of each air duct being in communication with a corresponding air passage, and the other end extending out of the cushion and being provided with a joint, and each air duct having a respective valve;
wherein the number of the air passages is less than the number of the air cell zones, and
wherein the air cells in the air cell layer are organized into an A1 air cell zone, an A2 air cell zone, an A3 air cell zone, an A4 air cell zone, an A5 air cell zone, a B1 air cell zone, a B2 air cell zone, a B3 air cell zone, a B4 air cell zone, a B5 air cell zone, and a C air cell zone as arranged in an array below; the air passage layer has a first air passage, a second air passage, and a third air passage therein; the first air passage is in connection and communication with the A1, A2, A3, A4, and A5 air cell zones, the second air passage is in connection and communication with the B1, B2, B3, B4, and B5 air cell zones, and the third air passage is in connection and communication with the C air cell zone; the array is shown as follows:
[
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
B
5
B
5
B
5
B
5
B
5
A
5
A
5
A
5
A
5
A
5
B
5
B
5
B
5
B
5
B
5
A
5
A
5
A
5
A
5
A
5
A
4
A
4
A
4
A
4
A
4
B
4
B
4
B
4
B
4
B
4
A
4
A
4
A
4
A
4
A
4
B
4
B
4
B
4
B
4
B
4
B
3
B
3
B
3
B
3
\
A
4
B
3
B
4
/
A
3
A
3
A
3
A
3
A
3
B
3
A
1
B
3
B
3
/
A
2
B
3
\
A
3
B
2
A
3
A
3
B
1
A
3
A
1
A
1
B
3
B
3
A
2
B
2
A
3
A
3
B
1
B
1
A
1
B
3
B
3
B
3
A
2
B
2
A
3
A
3
A
3
B
1
]
.
17. The cushion for preventing pressure sore according to claim 16 , wherein the plurality of air ducts is disposed in the air passage layer or in the base layer.
18. The cushion for preventing pressure sore according to claim 17 , further comprising an inflating device and a deflating device, wherein the inflating device and deflating device are connected to the joint of the air ducts.
19. The cushion for preventing pressure sore according to claim 18 , further comprising a control device, wherein the control device is electrically connected to the valve on the air duct, and is electrically connected to the inflating device and deflating device, so as to control the inflating device to inflate the air duct, or control the deflating device to deflate the air duct.
20. The cushion for preventing pressure sore according to claim 16 , wherein each air cell in the air cell layer is a columnar air cell; the columnar air cell comprises a columnar outer casing layer and an air cell column disposed in the outer casing layer; a hydrogel layer is disposed at the top of the air cell column, a sealing layer is disposed between the top of the air cell column and the hydrogel layer, and air is filled in space among the outer casing layer, the air cell column, and the sealing layer.