A pressure ulcer support pad

Abstract

This invention discloses an anti-pressure ulcer support pad, a flexible bearing pad, with a first support unit and a second support unit respectively arranged on both sides of the flexible bearing pad. A liquid pump assembly connects the first and second support units, enabling the liquid pump assembly to drive the circulation of a liquid medium between the first and second support units. The first or second support unit containing the liquid medium can protrude from the flexible bearing pad. As the liquid medium is added, the first and second support units can sequentially provide support forces in different directions to the object located on the flexible bearing pad, changing the fulcrum of the object on the flexible bearing pad. This invention, placed under the patient, intermittently moves the patient's tilt angle on the pad, thereby achieving a change in the support point between the patient's limb and the pad, reducing the impact of pressure on one side of the limb, and is easy to implement.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a pressure ulcer support pad. Background Technology

[0002] Pressure ulcers are mainly caused by prolonged pressure on a local limb, leading to ischemia and hypoxia in the skin and local tissues, resulting in necrosis and ulceration. This not only increases patient suffering, worsens the condition, and prolongs recovery time, but in severe cases, secondary infections can cause complications such as sepsis, endangering life.

[0003] Currently available mattresses designed to prevent pressure ulcers generally have multiple soft or breathable structures to reduce pressure on the skin and improve breathability. For example, a pressure ulcer care mattress with publication number CN213851618U has a removable filling pad and mattress body. When the patient needs to stay in bed for a long time, the filling pad can be removed to relieve pressure on the sacral area and prevent pressure ulcers. However, this type of mattress has the following drawbacks: 1. Because it aims to reduce the pressure on the body, it provides insufficient support for the patient's body, causing discomfort; 2. The mattress needs to be manually disassembled when the patient moves, making it cumbersome to use. Utility Model Content

[0004] The purpose of this invention is to provide a pressure ulcer support pad to solve the technical problem of inconvenient operation caused by subjective evaluation and manual turning in the prior art.

[0005] To solve the above-mentioned technical problems, this utility model specifically provides the following technical solution:

[0006] A pressure ulcer prevention support pad includes a flexible support pad, with a first support unit and a second support unit respectively provided on both sides of the flexible support pad. A liquid pump assembly is connected between the first support unit and the second support unit, and the liquid pump assembly can drive a liquid medium to circulate between the first support unit and the second support unit.

[0007] The first support unit or the second support unit containing the liquid medium can protrude from the flexible bearing pad. As the liquid medium is filled in, the first support unit and the second support unit can sequentially provide support forces in different directions to the object located on the flexible bearing pad and change the fulcrum of the object on the flexible bearing pad.

[0008] As a preferred embodiment of the present invention, both the first support unit and the second support unit include a connecting pipe and several rows of support pipes communicating with the connecting pipe;

[0009] The supporting pipe is horizontally arranged on the flexible bearing pad, and the two connecting pipes are connected to the liquid pump assembly. The liquid pump assembly delivers the liquid medium to the connecting pipes in different directions, so that the supporting pipes connected to different connecting pipes are filled and bulged.

[0010] The end of the supporting pipe extends toward the connecting pipe on the opposite side, and the supporting pipes located on different connecting pipes are spaced apart.

[0011] In a preferred embodiment of this utility model, the supporting pipe includes several flexible hoses with sequentially increasing lengths, the ends of the flexible hoses are sealed, and the ends of the flexible hoses are connected to the connecting pipe.

[0012] As a preferred embodiment of the present invention, the liquid pump assembly includes a bidirectional cycloidal pump capable of bidirectional liquid delivery, with output pipes provided on both sides of the bidirectional cycloidal pump, the bidirectional cycloidal pump being able to convert the liquids in the two output pipes into each other, and the output pipes being connected to the connecting pipe.

[0013] With the motor inside the bidirectional cycloidal pump starting, the liquid medium can flow unidirectionally within the two connecting pipes.

[0014] In a preferred embodiment of this utility model, a plurality of air bladders are provided between the flexible support pad and the hose. The air bladders are laid flat on the flexible support pad, and the hose is fixedly installed on the air bladders. The air bladders are used to provide soft support for the object located on the flexible support pad.

[0015] Compared with the prior art, this utility model has the following advantages:

[0016] This invention features two support units on a body pad for the patient to lie on. The height of the support units is adjusted by a liquid pump. As the liquid medium circulates between the two support units, the position of the patient's limbs on the two support units changes accordingly. This means that the support position of the patient's limbs on the body pad can be continuously moved, thereby reducing mattress injuries caused by prolonged pressure on one side of the limbs. It is also easy to operate, avoiding the inconvenience of manual operation, and is easy to implement. Attached Figure Description

[0017] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of the pressure ulcer prevention support pad shown in this embodiment;

[0019] Figure 2 for Figure 1 A schematic diagram of the side structure of the pressure ulcer support pad in the illustrated embodiment.

[0020] The labels in the diagram represent the following:

[0021] 1-Flexible bearing pad; 2-Airbag body; 3-First support unit; 4-Second support unit; 5-Liquid pump assembly; 6-Connecting pipe; 7-Supporting pipe;

[0022] 501 - Bidirectional cycloidal pump; 502 - Output pipeline. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] like Figures 1 to 2 As shown, this utility model provides a pressure ulcer prevention support pad, including a flexible support pad 1. A first support unit 3 and a second support unit 4 are respectively arranged on both sides of the flexible support pad 1. A liquid pump assembly 5 is connected between the first support unit 3 and the second support unit 4. The liquid pump assembly 5 can drive the liquid medium to circulate between the first support unit 3 and the second support unit 4. The liquid pump assembly 5 is connected to a power source.

[0025] The first support unit 3 or the second support unit 4 containing the liquid medium can be protruding and disposed on the flexible bearing pad 1. As the liquid medium is filled in, the first support unit 3 and the second support unit 4 can sequentially provide support forces in different directions to the object located on the flexible bearing pad 1, and change the fulcrum of the object on the flexible bearing pad 1, that is, change the support point of the object.

[0026] The flexible support pad 1 can be composed of a spring mattress. The first support unit 3 and the second support unit 4 are plastic films made of polymer materials, which have good sealing and waterproof effects. When liquid is introduced, it will inflate upwards and collapse downwards after the liquid is lost.

[0027] The instructions for using this body pad are as follows:

[0028] 1. Have the user lie on the flexible support pad 1, with the limbs on both sides located on the first support unit 3 and the second support unit 4 respectively;

[0029] 2. Liquid medium is introduced into the first support unit 3 through the liquid pump assembly 5. As the liquid medium is gradually introduced, the first support unit 3 gradually bulges up, and one side of the user is slowly lifted up until the first support unit 3 is fully bulging. At this time, the second support unit 4 is in a collapsed state, and the user leans towards the second support unit 4, with the fulcrum located on the second support unit 4.

[0030] 3. Start the liquid pump assembly 5 to extract the liquid medium in the first support unit 3 and introduce it into the second support unit 4. The second support unit 4 gradually bulges up, the first support unit 3 gradually collapses, the user is lifted in the opposite direction, the user tilts towards the first support unit 3, and the fulcrum is located on the first support unit 3.

[0031] 4. The start-up of the liquid pump assembly 5 can be manually controlled, and a cycle can be completed every eight or twelve hours.

[0032] This invention features two support units on a body pad where the patient lies. The height of the support units is adjusted by a liquid pump. As the liquid medium circulates between the two support units, the position of the patient's limbs on the two support units changes accordingly. This means that the support position of the patient's limbs on the body pad can be continuously moved, thereby reducing mattress injuries caused by the unchanging support position of one side of the limbs, reducing pressure on the patient's limbs, and facilitating operation without the need for manual patient movement, saving time and effort.

[0033] Both the first support unit 3 and the second support unit 4 include a connecting pipe 6 and several rows of support pipes 7 connected to the connecting pipe 6. The connecting pipe 6 is a supply pipe for several support pipes 7. Two separate connecting pipes 6 are respectively set on both sides of the flexible bearing pad 1. When the patient is lying down, he is located between the two connecting pipes 6. The connecting pipes 6 and the support pipes 7 are made of the same material and will bulge after the liquid medium is introduced, so as to protect the patient's limbs and prevent impact.

[0034] The support pipe 7 is horizontally set on the flexible support pad 1. Two connecting pipes 6 are connected to the liquid pump assembly 5. The liquid pump assembly 5 delivers liquid medium to the connecting pipes 6 in different directions, so that the support pipes 7 connected to the different connecting pipes 6 are filled and bulged. The support pipes 7 can provide support force to the patient on them.

[0035] The end of the support pipe 7 extends toward the connecting pipe 6 on the opposite side. The support pipes 7 located on different connecting pipes 6 are spaced apart, so that the support pipes 7 can be laid to the center of the flexible bearing pad 1 as far as possible while maintaining their position on both sides.

[0036] The spacing between the support pipes 7 also serves to allow for ventilation, creating a breathable channel between the patient's body and the flexible support pad 1, preventing stuffiness and reducing bacterial growth.

[0037] When the deflated support tube 7 bulges under the patient, the patient's center of gravity is on the support tube 7, so the bulging of the support tube 7 needs to overcome the patient's weight to achieve the function of "moving" the patient. In actual use, this moving force requires a high-power liquid pump assembly 5, which generates noise. To reduce noise, the support tube 7 includes several hoses of progressively increasing length, with sealed ends that are connected to the connecting tube 6.

[0038] When the liquid medium is injected, the shortest tube bulges first, lifting the patient at the edge of their limb. This effectively "prys" the patient, allowing more liquid medium to flow into the tube and further "prying" the limb until the patient's center of gravity shifts. This structure also ensures that the patient moves slowly when their support position changes, preventing excessive or rapid movement that could affect the placement of other inserted tubes.

[0039] The liquid pump assembly 5 includes a bidirectional cycloidal pump 501 capable of bidirectional liquid transfer. The bidirectional cycloidal pump 501 consists of a pump housing with a circular hole to accommodate the outer rotor, two rotor shafts (inner and outer), and bearings. The shaft is located at the center of the inner rotor, with a certain centrifugal distance between the centers of the inner and outer rotors. After the inner rotor rotates for a period of time, the outer rotor is driven to rotate in the same direction. When they reach a closer distance, the teeth of the inner rotor and the teeth of the outer rotor mesh. On the side further apart, because the inner rotor has one less gear, a gap of varying width is formed between it and the outer rotor, which functions as a pump, thus forcibly drawing in or expelling liquid.

[0040] The suction and discharge of liquid are affected by the rotation direction of the inner rotor. The bidirectional cycloidal pump 501 is also equipped with a controller that can control the rotation direction of the inner rotor. The rotation time and rotation direction of the inner rotor can be controlled by timed control.

[0041] The bidirectional cycloidal pump 501 has output pipes 502 on both sides. As the bidirectional cycloidal pump 501 draws in or discharges the liquid medium in the corresponding output pipe 502, the bidirectional cycloidal pump 501 can convert the liquid in the two output pipes 502 to each other. The output pipes 502 are connected to the connecting pipe 6.

[0042] With the motor inside the bidirectional cycloidal pump 501 starting, the liquid medium can flow unidirectionally within the two connecting pipes 6. The liquid medium is oil with lubricating properties.

[0043] It is worth noting that, since the liquid medium will be under continuous pressure, it will tend to flow towards the opposite support pipe 7. This bidirectional cycloidal pump 501 has good sealing performance.

[0044] To facilitate the inflating of the tubing from under the patient, several air bladders 2 are provided between the flexible support pad 1 and the tubing. The air bladders 2 are laid flat on the flexible support pad 1, and the tubing is fixedly installed on the air bladders 2. The air bladders 2 are used to provide soft support for the object located on the flexible support pad 1. When the tubing is filled with liquid medium, the tubing deforms in the direction of the air bladders 2. The air bladders 2 intermittently weaken the support force in the lateral direction, but can also further improve the breathability.

[0045] The pressure ulcer support pad provided by this utility model can intermittently move the tilt angle of the patient on the pad under the patient, thereby changing the support point between the patient's limb and the pad, reducing the impact of pressure on one side of the limb, and is easy to implement.

[0046] The above embodiments are merely exemplary embodiments of this application and are not intended to limit this application. The scope of protection of this application is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to this application within its substance and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of this application.

Claims

1. A pressure ulcer prevention support pad, characterized in that, The system includes a flexible support pad (1), on which a first support unit (3) and a second support unit (4) are respectively provided on both sides. A liquid pump assembly (5) is connected between the first support unit (3) and the second support unit (4). The liquid pump assembly (5) can drive the liquid medium to circulate between the first support unit (3) and the second support unit (4). The first support unit (3) or the second support unit (4) containing the liquid medium can protrude from the flexible bearing pad (1). As the liquid medium is filled in, the first support unit (3) and the second support unit (4) can sequentially provide support forces in different directions to the object located on the flexible bearing pad (1) and change the fulcrum of the object on the flexible bearing pad (1).

2. The pressure ulcer support pad according to claim 1, characterized in that, The first support unit (3) and the second support unit (4) both include a connecting pipe (6) and several rows of support pipes (7) connected to the connecting pipe (6); The support pipe (7) is horizontally arranged on the flexible bearing pad (1), and the two connecting pipes (6) are connected to the liquid pump assembly (5). The liquid pump assembly (5) delivers the liquid medium to the connecting pipes (6) in different directions, so that the support pipe (7) connected to different connecting pipes (6) is filled and bulged. The end of the support pipe (7) extends toward the connecting pipe (6) on the opposite side, and the support pipes (7) located on different connecting pipes (6) are spaced apart.

3. The pressure ulcer support pad according to claim 2, characterized in that, The supporting pipe (7) includes several hoses with progressively increasing lengths, the ends of which are sealed and connected to the connecting pipe (6).

4. The pressure ulcer support pad according to claim 3, characterized in that, The liquid pump assembly (5) includes a bidirectional cycloidal pump (501) capable of bidirectional liquid delivery. Both sides of the bidirectional cycloidal pump (501) are provided with output pipes (502). The bidirectional cycloidal pump (501) can convert the liquid in the two output pipes (502) to each other. The output pipes (502) are connected to the connecting pipe (6). With the start of the motor in the bidirectional cycloidal pump (501), the liquid medium can flow unidirectionally in the two connecting pipes (6).

5. The pressure ulcer prevention support pad according to claim 4, characterized in that, A plurality of airbags (2) are provided between the flexible bearing pad (1) and the hose. The airbags (2) are laid flat on the flexible bearing pad (1), and the hose is fixedly installed on the airbags (2). The airbags (2) are used to provide soft support for the object located on the flexible bearing pad (1).

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