Pressure sore prevention lifting cushion

Abstract

The utility model relates to a pressure sore prevention raising pad, which comprises a pad body with a wedge-shaped structure on the whole, the pad body sequentially comprises a contact layer, a buffer layer and a support layer from top to bottom, the contact layer is a medical silica gel material layer with a porous hollow structure, the buffer layer is a memory foam layer with a wedge-shaped structure, the front edge of the memory foam layer is 3 mm, and the rear edge of the memory foam layer is 10 mm. And the supporting layer is a medical EVA (Ethylene Vinyl Acetate) foaming layer of which the edge is subjected to chamfering treatment. According to the raising pad, the wedge-shaped buffer layer is combined with the gradually-changed-density memory foam, so that the pressure of high-incidence areas of pressure sores such as heels and sacrum is reduced by 45%-60%; meanwhile, the stability of the gypsum structure is maintained through the EVA supporting layer, and local pressure concentration is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical appliance technical field especially relates to a kind of anti-pressure sore elevated pad. BACKGROUND

[0002] In traditional orthopedic plaster fixation treatment, the occurrence of pressure ulcer (pressure injury) is a long-standing problem that plagues clinical. As a rigid external fixation material, although plaster can effectively maintain fracture reduction, the contradiction between its physical properties and human biomechanics directly leads to the risk of pressure ulcer: the inner wall of plaster is in direct contact with the skin, and the local pressure is borne by the bone protrusion parts (such as the calcaneus, medial and lateral malleolus, sacrum), leading to tissue ischemic necrosis; when the patient's body position changes or the muscles contract, shear force is generated between the inner wall of the plaster and the skin, accelerating the occlusion of the dermis layer blood vessels. Therefore, the prior art alleviates the above problems by inserting gauze or paper towels into the opening side of the plaster, but this method is cumbersome to operate and has very poor effect.

[0003] The patent announcement No. CN209122697U sets up leg pad and ankle pad, through leg pad and ankle pad respectively pad between the knee and ankle of patient, then through micro air pump to inflate the air bag on leg pad and ankle pad to prevent pressure ulcer between double knees. But the pad body structure is still not suitable for patients with plaster, and cannot fill the above-mentioned technical gap, the present application aims to provide an anti-pressure ulcer pad that can be placed in the plaster. UTILITY MODEL CONTENT

[0004] The utility model provides a kind of anti-pressure ulcer elevated pad with simple structure, convenient to use and good air permeability.

[0005] To achieve the above object, the technical scheme of the utility model is as follows:

[0006] An anti-pressure ulcer elevated pad includes a pad body with a wedge shape, which includes a contact layer, a buffer layer and a support layer from top to bottom. The contact layer is a porous hollow structure of medical silicone material layer. The buffer layer is a wedge-shaped memory cotton layer with a gradually increasing front edge of 3mm to a rear edge of 10mm. The support layer is a medical EVA foam layer with chamfered edges.

[0007] Preferably, the contact layer of the pad body is excavated with an arc-shaped groove penetrating both sides on the thicker side of the wedge shape. The upper surface of the contact layer corresponding to the outer end of the arc-shaped groove is provided with an upwardly extending extension.

[0008] Preferably, the contact layer of the pad body is bonded with a circular ring gasket in the middle of the thicker side of the wedge shape. The upper surface of the contact layer corresponding to the outer end of the circular ring gasket is provided with an upwardly extending extension.

[0009] Preferably, the thickness of the contact layer is 2-5mm.

[0010] Preferably, the surface of the contact layer is coated with an antibacterial coating.

[0011] Preferably, the side of the buffer layer facing the contact layer is distributed with several longitudinal flow grooves.

[0012] Preferably, the thickness of the support layer is 0.5-2mm.

[0013] Preferably, the surface of the support layer is distributed with anti-skid lines or anti-skid convex particles.

[0014] The above technical solution of the utility model has the following beneficial effects:

[0015] The anti-pressure sore lifting pad of the utility model adopts a layered design: a breathable contact layer contacting the skin, a middle support layer and a bottom hard support layer. The porous design can increase the breathability and disperse the pressure at the same time; the wedge shape helps to lift the contact surface and avoid pressure sores; the edge of the support layer is smoothly processed to avoid friction. The wedge-shaped buffer layer of the lifting pad is combined with the gradually changing density memory cotton, so that the pressure in the high-pressure area of the heel, sacrum and other parts is reduced by 45%-60%; at the same time, the EVA support layer maintains the stability of the plaster structure and avoids local pressure concentration. In addition, the porous structure of the contact layer is matched with the longitudinal flow grooves, so that the ventilation efficiency is greatly improved.

[0016] The anti-pressure sore lifting pad of the utility model improves the pad groove / annular gasket and the extension part on one hand to reserve more ventilation space and on the other hand to fit an articulation part, such as being placed in the heel position, to prevent heel pressure sores and at the same time to lift the heel to prevent foot drop. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 FIG. 1 is a structural schematic view of one embodiment of the anti-pressure sore lifting pad of the utility model;

[0018] Figure 2 FIG. 2 is a schematic view of the second embodiment of the anti-pressure sore lifting pad of the utility model;

[0019] Figure 3 FIG. 3 is a schematic view of the third embodiment of the anti-pressure sore lifting pad of the utility model. DETAILED DESCRIPTION

[0020] The embodiments of the anti-pressure sore lifting pad of the utility model will be described in detail below in combination with the drawings and embodiments.

[0021] Please refer to Figure 1The utility model discloses a kind of pressure ulcer prevention lifting pads shown, including the pad body 1 of whole wedge structure, the pad body 1 successively includes contact layer 2, buffer layer 3 and support layer 4 from top to bottom, the contact layer 2 is the porous hollow structure medical silica gel material layer, the buffer layer 3 is the wedge structure memory cotton layer that front edge 3mm gradually increases to back edge 10mm, the support layer 4 is the medical EVA foaming layer of edge chamfer processing.

[0022] The thickness of the contact layer 2 is 2-5mm, the pore size of the porous hollow structure is 3-6mm, the porous design can increase the air permeability of the pad body, while dispersing pressure. The surface of the contact layer 2 is coated with an antibacterial coating to reduce the risk of infection.

[0023] The one side of the buffer layer 3 towards the contact layer is distributed with several longitudinal flow guide grooves 30, and the longitudinal flow guide groove structure enhances the air flow. The wedge structure of the buffer layer determines the wedge gradient structure of the whole pad body, which helps to lift the contact part of the limb and the plaster, and plays a role in preventing pressure ulcers.

[0024] The hardness of the medical EVA foaming material of the support layer is 40-50 Shore C, and the chamfer setting eliminates the edge shear force. The thickness of the support layer 4 is 0.5-2mm. The surface of the support layer 4 is distributed with anti-skid lines or anti-skid convex particles.

[0025] When the pad body is made, the contact layer and the buffer layer are bonded by spraying polyurethane adhesive, the thickness of the sprayed polyurethane adhesive is ≤0.1mm, and the air permeability is high. The buffer layer and the support layer are bonded by partition temperature control, the EVA side is heated to 120℃, the memory cotton side is heated to 70℃, and then bonded under the pressure of 0.5MPa for 10-20s to form a cross-linking interface.

[0026] In another example of the utility model, Figure 2 As shown, the contact layer 2 of the pad body 1 is provided with an arc-shaped groove 6 penetrating through both sides in the thicker side of the wedge, and a first extension 80 extending upward is arranged on the upper surface of the contact layer corresponding to the outer end of the arc-shaped groove 6.

[0027] In another example, Figure 3 As shown, the contact layer 2 of the pad body 1 is provided with a circular ring gasket 7 in the middle of the thicker side of the wedge, and a second extension 81 extending upward is arranged on the upper surface of the contact layer corresponding to the outer end of the circular ring gasket 7.

[0028] Figures 2-3 The lifting pad in the two examples improves the pad body groove / ring gasket and extension, which on the one hand reserves more ventilation space, and on the other hand fits a joint part, such as being placed in the heel position, to prevent heel pressure ulcers and simultaneously lifting the heel to prevent foot drop.

[0029] The size of the pad body can be set to different sizes according to the used part and the required setting, and the shape thereof can also be adaptively changed according to the used part on the basis of reserving the above-mentioned invention principle, for example, an arc shape can be set on one side when used below the ankle joint. The overall thickness of the pad body is set to different thicknesses according to the actual situation on the basis of the above-mentioned limitation.

[0030] The above-mentioned embodiments are only preferred embodiments of the utility model for description, and do not limit the scope of the utility model, and various deformations and improvements of the technical scheme of the utility model made by the ordinary skilled in the art without departing from the design spirit of the utility model should fall within the protection scope determined by the claim of the utility model.

Claims

1. An anti-pressure ulcer elevation cushion, characterized by, The cushion body comprises a whole wedge-shaped structure, and sequentially comprises a contact layer, a buffer layer and a support layer from top to bottom, the contact layer is a porous hollow structure medical silica gel material layer, the buffer layer is a wedge-shaped structure memory cotton layer with a 3mm gradually increasing front edge and a 10mm rear edge, and the support layer is a medical EVA foaming layer with a chamfered edge.

2. The pressure ulcer prevention lift pad of claim 1, wherein, The contact layer of the cushion body is provided with an arc-shaped groove penetrating through both sides at the thicker side of the wedge, and the upper surface of the contact layer corresponding to the outer end of the arc-shaped groove is provided with an upward extending extension.

3. The pressure ulcer prevention lift cushion of claim 1, wherein, The contact layer of the cushion body is provided with a circular ring gasket at the middle of the thicker side of the wedge, and the upper surface of the contact layer corresponding to the outer end of the circular ring gasket is provided with an upward extending extension.

4. The pressure ulcer prevention lift pad of claim 1, wherein, The thickness of the contact layer is 2-5mm.

5. The pressure ulcer prevention lift pad of claim 1, wherein, The surface of the contact layer is coated with an antibacterial coating.

6. The pressure ulcer prevention lift pad of claim 1, wherein, The side of the buffer layer facing the contact layer is provided with a plurality of longitudinal flow grooves.

7. The pressure ulcer prevention lift pad of claim 1, wherein, The thickness of the support layer is 0.5-2mm.

8. The pressure ulcer prevention lift pad of claim 1, wherein, The surface of the support layer is provided with anti-skid lines or anti-skid convex particles.

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