Sickbed mattress device with bedsore prevention function

Abstract

The invention provides a sickbed mattress device with a bedsore prevention function, and relates to the field of medical instruments. The sickbed mattress device with the bedsore prevention function comprises a first cushion block, a second cushion block, a bottom cushion and a third cushion block, a driving mechanism is installed on the side, close to the front end, of the interior of the bottom cushion, an adjusting mechanism is installed at the position of the rear end of the driving mechanism, and the driving mechanism is matched with the adjusting mechanism to achieve adjusting control over the air inflow. The driving mechanism comprises two sliding rods, a first balancing weight and a second balancing weight are installed at the two ends of the two sliding rods, and a rack is fixedly arranged on one side of the rear end face of the sliding rod, close to the rear end, of the two sliding rods. According to the mattress device, continuous contact between the back of a patient and the mattress can be automatically relieved when the mattress follows a sickbed to assist the patient in sitting up, and the problem that tissue fester and necrosis are caused by continuous ischemia, hypoxia and malnutrition due to long-term compression of the mattress and the back of the patient, and bedsore is formed is solved.

Description

Technical Field

[0001] The present invention relates to the field of medical devices, in particular to a hospital bed mattress device with an anti-bedsore function. Background Art

[0002] Bedsores, also known as pressure sores or bedsores, are caused by prolonged localized pressure on tissue, resulting in persistent ischemia, hypoxia, and malnutrition, leading to tissue ulceration and necrosis. Skin pressure sores are a common problem in rehabilitation and nursing care. They primarily occur in patients with limited mobility who are confined to bed for extended periods. This prolonged confinement causes prolonged pressure on localized tissue, leading to persistent ischemia, hypoxia, and malnutrition, which in turn leads to tissue ulceration and necrosis, ultimately forming bedsores.

[0003] To prevent bedsores, the current main method is manual turning. Patients are manually turned over periodically to change the pressure point, preventing local tissue ischemia and hypoxia, thereby preventing the formation of bedsores. However, this method requires specialized care and considerable effort, making it time-consuming and labor-intensive for caregivers. Summary of the Invention

[0004] To solve the above technical problems, the present invention proposes the following technical solutions: a mattress device for a hospital bed with an anti-bedsore function, comprising a No. 1 pad, a No. 2 pad, a bottom pad, and a No. 3 pad, wherein a driving mechanism is installed on one side of the bottom pad near the front end, and an adjusting mechanism is installed at the rear end of the driving mechanism, wherein the driving mechanism cooperates with the adjusting mechanism to adjust and control the air intake volume, the driving mechanism comprising two sliding rods, a No. 1 counterweight block and a No. 2 counterweight block being installed at both ends of the two sliding rods, a rack being fixedly provided on one side of the rear end surface of the sliding rod near the rear end of the two sliding rods, and two telescopic springs being fixedly provided on one side of the No. 1 counterweight block; The driving mechanism includes an inner sac body, a valve body No. 1 is installed on one side of the front end surface of the inner sac body and a valve body No. 2 is installed on one side of the rear end surface, a gear is fixedly provided on the upper end of the valve shaft for opening and closing the valve body at the upper end of the No. 1 valve body, and the gear is meshed with the rack, and the air outlet ends of the No. 1 valve body and the No. 2 valve body are both fixedly provided with a conduit, and the front and rear ends of one side of the lower end of the No. 1 cushion block are penetrated by a connecting pipe and connected to the conduit, a No. 1 inflatable bag block is installed on one side of the upper end surface of the No. 1 cushion block and a No. 2 inflatable bag block is installed on the other side, wherein the two connecting pipes are both connected to the No. 2 inflatable bag block; A splicing mechanism is installed inside the No. 1 pad, No. 2 pad and No. 3 pad, and the splicing mechanism includes a connecting plate. Fixed rods are fixed at the front and rear ends of one side of the connecting plate, and a plurality of No. 1 clamping blocks and No. 2 clamping blocks are fixed on the lower end surfaces of the two fixing rods respectively. A connecting spring is fixed on the side of the two fixing rods away from the connecting plate.

[0005] Preferably, a plurality of support blocks are fixedly installed inside the bottom pad, and the pad No. 1, pad No. 2 and pad No. 3 are all embedded in the bottom pad and correspond to the head end, hip end and leg end positions respectively. Clamps are fixedly provided on both sides of the lower ends of the pad No. 1, pad No. 2 and pad No. 3 inside the bottom pad, and a plurality of clamping slots are provided on the upper surfaces of the clamping plates. The slots on the clamping plates on both sides of the lower ends of the pad No. 1, pad No. 2 and pad No. 3 are respectively clamped with the clamp No. 1 and clamp No. 2.

[0006] Preferably, the No. 2 cushion block includes a cushion block body, and a base plate is fixedly provided on the lower end surface of the cushion block body at the lower end of the splicing mechanism. Multiple movable grooves are opened on both sides of the lower end surface of the base plate, and multiple No. 1 card blocks and No. 2 card blocks are movably arranged in the movable grooves.

[0007] Preferably, a gap is formed between one side of the lower end surface of the No. 1 pad, the No. 2 pad and the No. 3 pad and the upper end surface of the bottom pad.

[0008] Preferably, a plurality of protrusions are evenly arranged and fixedly provided on the upper end surfaces of the No. 2 pad and the No. 3 pad, and all of the protrusions are soft protrusions.

[0009] Preferably, the No. 2 inflatable bladder block includes two longitudinal bladder shells, and a plurality of transverse bladder blocks are fixedly arranged at equal intervals between the two longitudinal bladder shells. The two longitudinal bladder shells are connected to the plurality of transverse bladder blocks, and the two connecting tubes are respectively connected to the two longitudinal bladder shells.

[0010] Preferably, the two sliding rods are both horizontally slidable and penetrate into one of the support blocks, and the ends of the two telescopic springs away from the No. 1 counterweight block are fixedly connected to the outer wall of the clamping plate located on the lower end side of the No. 1 pad block. The lower end surfaces of the No. 1 counterweight block and the No. 2 counterweight block are both rotatably provided with multiple rollers, the inner bag body adopts an inflatable airbag structure, and the No. 1 valve body and the No. 2 valve body both adopt one-way valves.

[0011] The present invention provides a mattress device for a hospital bed with an anti-bedsore function. It has the following beneficial effects: 1. Through a built-in drive and adjustment mechanism, the internal airbag inflation volume is automatically adjusted based on gravity and airflow, achieving intelligent response to changes in the patient's body position. This automatic adaptability helps provide consistent comfort and support. It can automatically adjust the air volume of the inflatable bag block as the patient's position changes, thereby reducing continuous pressure on the skin and reducing the risk of bedsores. By adjusting the support point on the back, the mattress reduces continuous contact with the back when the patient sits up, effectively preventing the occurrence of bedsores.

[0012] 2. The mattress is composed of multiple detachable pads for easy cleaning and replacement. The splicing mechanism allows for easy assembly and separation of the different parts, improving flexibility and ease of maintenance. The valve bodies are all one-way valves, ensuring safer airflow control and avoiding potential risks caused by incorrect airbag direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the shaft side structure of the present invention; Figure 2 For the present invention Figure 1 Another perspective structural diagram; Figure 3 For the present invention Figure 1 A schematic diagram of a partial cross-sectional structure; Figure 4 For the present invention Figure 1 Schematic diagram of the cross-sectional structure; Figure 5 This is a structural diagram of a No. 1 cushion block of the present invention; Figure 6 Schematic diagram of the top structure of the No. 2 cushion block of the present invention; Figure 7 For the present invention Figure 6 Schematic diagram of the top cross-section structure; Figure 8 It is a structural schematic diagram of the driving mechanism and the adjusting mechanism of the present invention; Figure 9 For the present invention Figure 8 Another perspective structural diagram; Figure 10 For the present invention Figure 8 Schematic diagram of the top view structure.

[0014] Among them, 1, No. 1 pad; 2, No. 2 pad; 201, pad body; 202, bottom plate; 3, gap; 4, bottom pad; 5, No. 3 pad; 6, protrusion; 7, splicing mechanism; 701, connecting plate; 702, No. 1 clamping block; 703, movable groove; 704, No. 2 clamping block; 705, fixing rod; 706, connecting spring; 8, No. 1 inflatable bag block; 9, No. 2 inflatable bag block; 901, horizontal bag block; 902, vertical bag block Toward the capsule shell; 10. Connecting pipe; 11. Support block; 12. Slot; 13. Clamping plate; 14. Driving mechanism; 1401. Telescopic spring; 1402. Counterweight block No. 1; 1403. Rack; 1404. Slide rod; 1405. Counterweight block No. 2; 1406. Roller; 15. Adjusting mechanism; 1501. Gear; 1502. Valve body No. 1; 1503. Conduit; 1504. Inner capsule; 1505. Valve body No. 2. DETAILED DESCRIPTION

[0015] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0016] Example: like Figure 1-Figure 7 As shown, an embodiment of the present invention provides a mattress device for a hospital bed with an anti-bedsore function, comprising a No. 1 pad 1, a No. 2 pad 2, a bottom pad 4, and a No. 3 pad 5. The No. 1 pad 1, the No. 2 pad 2, and the No. 3 pad 5 are all internally installed with a splicing mechanism 7, and the splicing mechanism 7 includes a connecting plate 701. Fixed rods 705 are fixedly provided at the front and rear ends of one side of the connecting plate 701. A plurality of No. 1 clamping blocks 702 and No. 2 clamping blocks 704 are fixedly provided on the lower end surfaces of the two fixing rods 705, respectively. A connecting spring 706 is fixedly provided on the side of the two fixing rods 705 away from the connecting plate 701. A plurality of support blocks 11 are fixedly installed inside the bottom pad 4. The No. 1 pad 1, the No. 2 pad 2 and the No. 3 pad 5 are all embedded in the bottom pad 4 and correspond to the head end, the hip end and the leg end respectively. A clamping plate 13 is fixedly provided on both sides of the lower ends of the No. 1 pad 1, the No. 2 pad 2 and the No. 3 pad 5 inside the bottom pad 4. A plurality of clamping grooves 12 are provided on the upper end surfaces of the plurality of clamping plates 13. The clamping grooves 12 on the clamping plates 13 on both sides of the lower ends of the No. 1 pad 1, the No. 2 pad 2 and the No. 3 pad 5 are respectively clamped with the No. 1 clamping block 702 and the No. 2 clamping block 704; Specifically, the entire hospital bed mattress device adopts a split multi-module structure, namely the base pad 4 and the No. 1 pad 1, No. 2 pad 2 and No. 3 pad 5 embedded and installed inside the base pad 4. During use, when one of the module components of the No. 1 pad 1, No. 2 pad 2 and No. 3 pad 5 is broken, they can all be replaced and maintained separately, reducing the resource waste caused by the overall replacement and disposal of the traditional mattress integrated structure; and the No. 1 pad 1, No. 2 pad 2 and No. 3 pad 5 all use the splicing mechanism 7 at the lower end to connect the block and the card slot 12 with the internal card plate 13 of the base pad 4, which is not only convenient for disassembly and use, but also very convenient for installation.

[0017] Reference Figure 6 and Figure 7 The second cushion block 2 includes a cushion block body 201. The lower end surface of the cushion block body 201 is located at the lower end of the splicing mechanism 7 and is fixedly provided with a bottom plate 202. Both sides of the lower end surface of the bottom plate 202 are provided with multiple movable grooves 703. Multiple No. 1 card blocks 702 and No. 2 card blocks 704 are all movably arranged in the movable grooves 703. Specifically, when the connecting plate 701 is pressed to move inward during use, the fixed rod 705 at its rear end and the first and second clamping blocks 702 and 704 installed on the fixed rod 705 will all move backward. However, due to the connecting spring 706 set at the rear end of the fixed rod 705, when the pressing force on the connecting plate 701 is released, the connecting spring 706 recovers and pushes the fixed rod 705 to complete the automatic reset effect.

[0018] Reference Figure 1 A gap 3 is formed between one side of the lower end surface of the No. 1 pad 1, the No. 2 pad 2 and the No. 3 pad 5 and the upper end surface of the bottom pad 4; Specifically, by leaving a gap 3 with a certain distance, it is convenient for medical staff to pick up and use it when disassembling and replacing it.

[0019] Reference Figure 1-Figure 3 , the upper end surfaces of the No. 2 pad 2 and the No. 3 pad 5 are evenly arranged and fixed with multiple protrusions 6, and the multiple protrusions 6 are all soft protrusions; Specifically, the convex blocks are arranged in an array and made of soft materials. Patients will feel very comfortable when lying on the convex block array 6. The soft material, ventilation and air permeability, and low temperature make the anti-bedsore mattress less likely to cause bedsores.

[0020] Reference Figure 4 、 Figure 5 、 Figures 8-10 A driving mechanism 14 is installed on the front side of the bottom pad 4, and an adjusting mechanism 15 is installed at the rear end of the driving mechanism 14, wherein the driving mechanism 14 cooperates with the adjusting mechanism 15 to adjust and control the air intake amount. The driving mechanism 14 includes two sliding rods 1404, and a first counterweight block 1402 and a second counterweight block 1405 are installed at both ends of the two sliding rods 1404. A rack 1403 is fixedly provided on one side of the rear end surface of the sliding rod 1404 near the rear end of the two sliding rods 1404, and two telescopic springs 1401 are fixedly provided on one side of the No. 1 counterweight block 1402; The driving mechanism 14 includes an inner capsule 1504, a valve body 1502 is installed on one side of the front end face of the inner capsule 1504, and a valve body 1505 is installed on one side of the rear end face. A gear 1501 is fixed on the upper end of the valve shaft of the valve body 1502 for opening and closing the valve body, and the gear 1501 is meshed with the rack 1403. The outlet ends of the valve body 1502 and the valve body 1505 are fixed with a conduit 1503. The front and rear ends of the lower end of the No. 1 pad 1 are penetrated by a connecting pipe 10 and connected to the conduit 1503. , an inflatable bag block 8 is installed on one side of the upper end surface of the No. 1 cushion block 1 and an inflatable bag block 9 is installed on the other side, wherein the two connecting pipes 10 are connected to the No. 2 inflatable bag block 9, and the two slide rods 1404 are both horizontally slidable and penetrated in one of the support blocks 11, and the ends of the two telescopic springs 1401 away from the No. 1 counterweight block 1402 are fixedly connected to the outer wall of the card plate 13 located on the lower end side of the No. 1 cushion block 1, and the lower end surfaces of the No. 1 counterweight block 1402 and the No. 2 counterweight block 1405 are rotatably provided with multiple rollers 1406; Specifically, when the mattress is placed on the bed and follows the bed board to push up the patient's back, the No. 1 counterweight 1402 and the No. 2 counterweight 1405 located inside the bottom cushion 4 will slide downward under the influence of their own gravity, thereby driving the slide bar 1404 to move downward and squeeze the telescopic spring 1401 at the lower end. When the slide bar 1404 moves downward, it will prompt the rack 1403 at the rear end to move as well, and the rack 1403 will mesh with the gear 1501, prompting the gear 1501 to rotate, and the gear 1501 will be connected to the valve shaft to prompt the valve shaft to rotate. , thereby changing the outlet size of the flow cavity of the No. 1 valve body 1502, changing the gas output of the No. 1 valve body 1502, while the flow volume of the No. 2 valve body 1505 remains unchanged. When the No. 2 inflatable bag block 9 is subjected to force, due to the uneven gas flow volume inside the airway connected at both ends, that is, the gas output at the No. 1 valve body 1502 is reduced, while the gas output at the No. 2 valve body 1505 remains unchanged, resulting in a smaller amount of gas entering the No. 2 inflatable bag block 9, thereby causing the No. 2 inflatable bag block 9 to deflate. That is, at this time, the patient's back is no longer in continuous contact with the mattress, thereby playing an auxiliary role in preventing bedsores. Because the inner bladder 1504 adopts an inflatable airbag structure, the No. 1 valve body 1502 and the No. 2 valve body 1505 both adopt one-way valves. That is, although the air output of the No. 2 valve body 1505 remains unchanged, the expansion of the inner bladder 1504 can collect this part of the excess discharged gas to avoid accidents; when the mattress returns to a flat position, the telescopic spring 1401 resets and pushes the counterweight block. Due to the roller 1406 set at the lower end of the counterweight frame, it makes it slide more smoothly and simply, thereby completing the automatic recovery function of the flow rate of the No. 1 valve body 1502.

[0021] Reference Figure 5The second inflatable bladder block 9 includes two longitudinal bladder shells 902, and a plurality of transverse bladder blocks 901 are fixedly arranged at equal intervals between the two longitudinal bladder shells 902. The two longitudinal bladder shells 902 are connected to the plurality of transverse bladder blocks 901, and the two connecting pipes 10 are respectively connected to the two longitudinal bladder shells 902; Specifically, the No. 2 inflatable bag block 9 cooperates with the connecting tube 10, the catheter 1503 and the inner bag body 1504 to form the airway circuit of the entire airbag mattress; the connecting tube 10 and the catheter 1503 are installed in combination by the plug-in splicing method commonly used between pipes. This technical means can adopt conventional technical means and will not be elaborated here.

[0022] Working principle: When the device is used, the mattress is divided into four parts, namely the base pad 4 and the No. 1 pad 1, No. 2 pad 2 and No. 3 pad 5 embedded in the base pad 4. The lower ends of the No. 1 pad 1, No. 2 pad 2 and No. 3 pad 5 are all provided with a splicing mechanism 7 for clamping and combining with the internal clamping plate 13 of the base pad 4. When the splicing mechanism 7 is used, the connecting plate 701 is pressed inward to drive the rear end fixing rod 705 and the No. 1 clamping block 702 and No. 2 clamping block 704 on the fixing rod 705 to move backward, and the fixing rod 705 When moving backward, the connecting spring 706 at the rear end is squeezed to complete the contraction. At this time, the first clamping block 702 and the second clamping block 704 move backward, causing their L-shaped bent ends to just correspond to the clamping slot 12 on the clamping plate 13 inside the bottom pad 4. When the clamping block is embedded in the clamping slot 12, the pressing force on the connecting plate 701 is removed, thereby causing the connecting spring 706 at the rear end to rebound, causing the fixing rod 705 to drive the clamping block to move forward, thereby clamping it in the clamping slot 12 of the clamping plate 13 to complete the splicing assembly. The multi-module assembly structure can be easily disassembled and replaced. After the multi-module structure is assembled, the mattress is placed on the bed for use. Since the No. 1 cushion block 1 corresponds to the patient's head and back positions, the upper surface of the No. 1 cushion block 1 is divided into the No. 1 inflatable bag block 8 and the No. 2 inflatable bag block structure 9, so that it corresponds to the head and back positions. When the mattress follows the bed to adjust the patient's back position to assist the patient in sitting up, the mattress flips upward, causing the internal drive mechanism 14 to move, that is, the two counterweight blocks use the gravity effect to drive the slide bar 1404 to move downward and squeeze the telescopic spring 1401 at the lower end. When the slide bar 1404 moves downward, it will drive the rack 1403 to move together. The movement of the rack 1403 will drive the meshing gear 1501 to rotate, thereby realizing the adjustment mechanism. The movement of 15, that is, the rotation of gear 1501 drives the valve shaft of valve body No. 1 1502 to rotate, so that the flow of valve body 1505 is reduced, while the flow of valve body No. 2 remains unchanged and since both are one-way valves, the flow rate of gas filled in the upper No. 2 air bag block 9 changes, and finally causes the No. 2 air bag block 9 to shrink and deflate, and when the mattress lies flat, the telescopic spring 1401 pushes the counterweight block back to its original position, thereby achieving an automatic reset effect; that is, the mattress can directly cancel the continuous contact with the patient's back when following the bed to assist the patient to sit up, thereby playing a role in preventing bedsores, and the No. 1 air bag block 8 remains unchanged, so that it always has an auxiliary support effect on the patient's head and neck position when assisting the patient to sit up.

[0023] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A mattress device for a hospital bed with an anti-bedsore function, comprising a No. 1 cushion block (1), a No. 2 cushion block (2), a bottom cushion (4) and a No. 3 cushion block (5), characterized in that: A driving mechanism (14) is installed on the front side of the bottom pad (4), and an adjusting mechanism (15) is installed at the rear end of the driving mechanism (14), wherein the driving mechanism (14) cooperates with the adjusting mechanism (15) to adjust and control the air intake volume, and the driving mechanism (14) includes two sliding rods (1404), and a first counterweight (1402) and a second counterweight (1405) are installed at both ends of the two sliding rods (1404). A rack (1403) is fixedly provided on one side of the rear end surface of the sliding rod (1404) near the rear end of the two sliding rods (1404), and two telescopic springs (1401) are fixedly provided on one side of the first counterweight (1402); The driving mechanism (14) comprises an inner sac (1504), a valve body (1502) is installed on one side of the front end face of the inner sac (1504) and a valve body (1505) is installed on one side of the rear end face, a gear (1501) is fixedly provided on the upper end of the valve shaft for opening and closing the valve body at the upper end of the valve body (1502), and the gear (1501) is meshed with the rack (1403), and the air outlet ends of the valve body (1502) and the valve body (1505) are fixedly provided with a conduit (1503), a connecting pipe (10) is provided through the front and rear ends of one side of the lower end of the cushion block (1) and is connected to the conduit (1503), a gas-filled bag block (8) is installed on one side of the upper end face of the cushion block (1) and a gas-filled bag block (9) is installed on the other side, wherein the two connecting pipes (10) are both connected to the gas-filled bag block (9); The first cushion block (1), the second cushion block (2) and the third cushion block (5) are each internally provided with a splicing mechanism (7), the splicing mechanism (7) comprising a connecting plate (701), a fixing rod (705) being fixedly provided at the front and rear ends of one side of the connecting plate (701), a plurality of first clamping blocks (702) and second clamping blocks (704) being fixedly provided on the lower end surfaces of the two fixing rods (705), and a connecting spring (706) being fixedly provided on the side of the two fixing rods (705) away from the connecting plate (701).

2. The mattress device for a hospital bed with an anti-bedsore function according to claim 1, characterized in that: A plurality of support blocks (11) are fixedly installed inside the bottom pad (4), and the pad block No. 1 (1), the pad block No. 2 (2) and the pad block No. 3 (5) are all embedded in the bottom pad (4) and correspond to the head end, the hip end and the leg end respectively. A clamping plate (13) is fixedly arranged on both sides of the lower ends of the pad block No. 1 (1), the pad block No. 2 (2) and the pad block No. 3 (5) inside the bottom pad (4), and a plurality of clamping slots (12) are opened on the upper end surfaces of the plurality of clamping plates (13). The clamping slots (12) on the clamping plates (13) on both sides of the lower ends of the pad block No. 1 (1), the pad block No. 2 (2) and the pad block No. 3 (5) are respectively clamped with the clamping block No. 1 (702) and the clamping block No. 2 (704).

3. The mattress device for a hospital bed with an anti-bedsore function according to claim 1, characterized in that: The second cushion block (2) comprises a cushion block body (201), a bottom plate (202) being fixedly provided on the lower end surface of the cushion block body (201) at the lower end of the splicing mechanism (7), a plurality of movable grooves (703) being provided on both sides of the lower end surface of the bottom plate (202), and a plurality of the first clamping blocks (702) and the second clamping blocks (704) being movably provided in the movable grooves (703).

4. The mattress device for a hospital bed with an anti-bedsore function according to claim 1, characterized in that: A gap (3) is formed between one side of the lower end surface of the No. 1 pad (1), the No. 2 pad (2) and the No. 3 pad (5) and the upper end surface of the bottom pad (4).

5. The mattress device for a hospital bed with an anti-bedsore function according to claim 1, characterized in that: A plurality of protrusions (6) are evenly arranged and fixedly provided on the upper end surfaces of the No. 2 cushion block (2) and the No. 3 cushion block (5), and the plurality of protrusions (6) are all soft protrusions.

6. The mattress device for a hospital bed with an anti-bedsore function according to claim 1, characterized in that: The second inflatable bladder block (9) comprises two longitudinal bladder shells (902), a plurality of transverse bladder blocks (901) are fixedly arranged at equal intervals between the two longitudinal bladder shells (902), the two longitudinal bladder shells (902) are connected to the plurality of transverse bladder blocks (901), and the two connecting pipes (10) are respectively connected to the two longitudinal bladder shells (902).

7. The mattress device for a hospital bed with an anti-bedsore function according to claim 1, characterized in that: The two sliding rods (1404) are both arranged to slide transversely and penetrate into one of the support blocks (11); one end of the two telescopic springs (1401) away from the No. 1 counterweight block (1402) is fixedly connected to the outer wall of the clamping plate (13) located on the lower end side of the No. 1 cushion block (1); the lower end surfaces of the No. 1 counterweight block (1402) and the No. 2 counterweight block (1405) are both rotatably provided with a plurality of rollers (1406); the inner sac (1504) adopts an inflatable airbag structure; the No. 1 valve body (1502) and the No. 2 valve body (1505) both adopt a one-way valve.

Images