CN219166888U - Polyurethane composite medical foam capable of improving hydrophilicity - Google Patents
Polyurethane composite medical foam capable of improving hydrophilicity Download PDFInfo
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- CN219166888U CN219166888U CN202223575069.6U CN202223575069U CN219166888U CN 219166888 U CN219166888 U CN 219166888U CN 202223575069 U CN202223575069 U CN 202223575069U CN 219166888 U CN219166888 U CN 219166888U
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Abstract
The utility model discloses polyurethane composite medical foam for improving hydrophilicity, which comprises an upper polyurethane foam layer, a lower polyurethane foam layer, a hydrophilic non-woven fabric layer, a gel coating and a backing layer, wherein the hydrophilic non-woven fabric layer is clamped between the upper polyurethane foam layer and the lower polyurethane foam layer, a third sinking groove is formed in the top of the backing layer, and the gel coating is coated in the third sinking groove; the top of the upper polyurethane foam layer is provided with water absorption grooves communicated with the hydrophilic non-woven fabric layer, and a gel groove is arranged between two adjacent water absorption grooves. When the medical foam is used, wound exudates on a wound surface can be adsorbed by the hydrophilic non-woven fabric layer through the water absorption grooves, so that secondary infection of the wound caused by the exudates is prevented, and the healing effect of the wound surface is improved; in addition, the gel grooves can enable the gel coating to flow onto the wound surface under the action of gravity, so that the healing rate of the wound is improved.
Description
Technical Field
The utility model relates to the field of polyurethane foam, in particular to polyurethane composite medical foam for improving hydrophilicity.
Background
Antibacterial hemostasis is a problem frequently encountered in various wound dressings and operations. The medical foam is a medical material for temporarily covering various wounds and wound surfaces, can prevent the wounds from bacterial infection and other external factors, and plays a role in protecting the wounds and the wound surfaces.
In the prior art, although the traditional medical foam has good air permeability, the technical problem of insufficient hydrophilicity still exists, so that the medical foam can not effectively absorb wound exudates on a wound surface, thereby influencing the healing effect of the wound surface.
Accordingly, the prior art has drawbacks and needs improvement.
Disclosure of Invention
The technical problems to be solved by the utility model are as follows: provides polyurethane composite medical foam with improved hydrophilicity.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
a polyurethane composite medical foam for improving hydrophilicity comprises an upper polyurethane foam layer, a lower polyurethane foam layer, a hydrophilic non-woven fabric layer, a gel coating and a back lining layer;
the bottom of the upper polyurethane foam layer is provided with a first sinking groove, the top of the lower polyurethane foam layer is provided with a second sinking groove, and the hydrophilic non-woven fabric layer is clamped in a space formed between the first sinking groove and the second sinking groove;
the backing layer is arranged at the bottom of the lower polyurethane foam layer, a third sinking groove is formed in the top of the backing layer, and a gel coating is coated in the third sinking groove;
the top of the upper polyurethane foam layer is provided with a plurality of water absorption grooves communicated with the first sinking grooves, a gel groove is arranged between two adjacent water absorption grooves, and the gel groove sequentially penetrates through the upper polyurethane foam layer, the hydrophilic non-woven fabric layer and the lower polyurethane foam layer from top to bottom;
the distance between the water absorption groove and the gel groove is larger than 4mm.
By adopting the technical scheme, the hydrophilic polyurethane composite medical foam further comprises a release film layer, wherein the release film layer is positioned at the top of the upper polyurethane foam surface layer.
By adopting the technical scheme, in the polyurethane composite medical foam with improved hydrophilicity, the widths of the water absorption grooves and the gel grooves are both larger than 1mm.
By adopting the technical scheme, in the polyurethane composite medical foam with improved hydrophilicity, the gel coating is an epidermal growth factor gel.
By adopting the technical scheme, in the polyurethane composite medical foam with improved hydrophilicity, the upper polyurethane foam layer and the lower polyurethane foam layer are bonded through hot pressing.
By adopting the technical scheme, in the polyurethane composite medical foam with improved hydrophilicity, the backing layer is one of a PE film, a PET film or a PP film.
By adopting the technical scheme, in the polyurethane composite medical foam for improving the hydrophilicity, the thickness of the hydrophilic non-woven fabric layer is 8mm.
Compared with the prior art, the hydrophilic non-woven fabric layer has good water absorbability, the hydrophilic non-woven fabric layer is arranged in a space formed between the first sink groove and the second sink groove, and the top of the upper polyurethane foam layer is provided with the water absorption groove communicated with the first sink groove, so that wound exudates on a wound surface can be absorbed by the hydrophilic non-woven fabric layer through the water absorption groove when the medical foam is used, secondary infection of the wound caused by the exudates is prevented, and the healing effect of the wound surface is improved; in addition, the gel grooves can enable the gel coating to flow onto the wound surface under the action of gravity, so that the healing rate of the wound is improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are only embodiments of the present application, and other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic cross-sectional view of the present utility model;
fig. 2 is a schematic view of the surface structure of the upper polyurethane foam layer of the present utility model.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and to simplify 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.
As shown in fig. 1 and 2, the present embodiment provides a polyurethane composite medical foam for improving hydrophilicity, which comprises an upper polyurethane foam layer 10, a lower polyurethane foam layer 20, a hydrophilic non-woven fabric layer 30, a gel coating layer 40 and a backing layer 50;
the bottom of the upper polyurethane foam layer 10 is provided with a first sinking groove 101, the top of the lower polyurethane foam layer 20 is provided with a second sinking groove 201, and the hydrophilic non-woven fabric layer 30 is clamped in a space formed between the first sinking groove 101 and the second sinking groove 201;
the backing layer 50 is arranged at the bottom of the lower polyurethane foam layer 20, a third sinking groove 501 is arranged at the top of the backing layer 50, and a gel coating 40 is coated in the third sinking groove 501;
the top of the upper polyurethane foam layer 10 is provided with a plurality of water absorption grooves 100 communicated with the first sink 101, a gel groove 200 is arranged between two adjacent water absorption grooves 100, and the gel groove 200 sequentially penetrates through the upper polyurethane foam layer 10, the hydrophilic non-woven fabric layer 30 and the lower polyurethane foam layer 20 from top to bottom. The hydrophilic non-woven fabric layer 30 has good water absorption, the hydrophilic non-woven fabric layer 30 is arranged in a space formed between the first sink 101 and the second sink 201, and the top of the upper polyurethane foam layer 10 is provided with the water absorption groove 100 communicated with the first sink 101, so that when the medical foam is used, wound exudates on a wound surface can be absorbed by the hydrophilic non-woven fabric layer 30 through the water absorption groove 100, secondary infection of the wound caused by the exudates is prevented, and the healing effect of the wound surface is improved; in addition, the gel grooves 200 can enable the gel coating 40 to flow down to the wound surface under the action of gravity, so that the healing rate of the wound is improved.
The interval between the water absorbing grooves 100 and the gel grooves 200 is greater than 4mm. This arrangement reduces cross-penetration between wound exudates and gel coat 40.
Further, a release film layer 60 is further included, and the release film layer 60 is located on top of the upper polyurethane foam surface layer. The release film 60 is arranged, so that the medical foam can be protected, and when the medical foam is used, only the release film 60 is required to be torn.
Further, the widths of the water absorbing grooves 100 and the gel grooves 200 are all greater than 1mm. The widths of the water absorbing grooves 100 and the gel grooves 200 are set to be greater than 1mm, so that the absorption or permeation rate of wound exudates and the gel coating 40 can be improved.
Further, the gel coating 40 is an epidermal growth factor gel. The epidermal growth factor gel can promote the wound healing rate of chronic ulcer wound surface, residual wound surface, superficial II degree-deep II degree skin burn and scald wound surface.
Further, the upper polyurethane foam layer 10 and the lower polyurethane foam layer 20 are bonded by hot pressing.
Further, the backing layer 50 is one of a PE film, a PET film or a PP film. In this embodiment, the backing layer 50 is a PE film.
Further, the hydrophilic nonwoven layer 30 has a thickness of 8mm. The thickness of the hydrophilic nonwoven layer 30 was set to 8mm, and the absorption and storage capacity of wound exudates were improved.
Compared with the prior art, the hydrophilic non-woven fabric layer has good water absorbability, the hydrophilic non-woven fabric layer is arranged in a space formed between the first sink groove and the second sink groove, and the top of the upper polyurethane foam layer is provided with the water absorption groove communicated with the first sink groove, so that wound exudates on a wound surface can be absorbed by the hydrophilic non-woven fabric layer through the water absorption groove when the medical foam is used, secondary infection of the wound caused by the exudates is prevented, and the healing effect of the wound surface is improved; in addition, the gel grooves can enable the gel coating to flow onto the wound surface under the action of gravity, so that the healing rate of the wound is improved.
The foregoing description of the preferred embodiment of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (7)
1. The utility model provides an improve hydrophilic polyurethane composite medical foam which characterized in that: comprises an upper polyurethane foam layer, a lower polyurethane foam layer, a hydrophilic non-woven fabric layer, a gel coating and a backing layer;
the bottom of the upper polyurethane foam layer is provided with a first sinking groove, the top of the lower polyurethane foam layer is provided with a second sinking groove, and the hydrophilic non-woven fabric layer is clamped in a space formed between the first sinking groove and the second sinking groove;
the backing layer is arranged at the bottom of the lower polyurethane foam layer, a third sinking groove is formed in the top of the backing layer, and a gel coating is coated in the third sinking groove;
the top of the upper polyurethane foam layer is provided with a plurality of water absorption grooves communicated with the first sinking grooves, a gel groove is arranged between two adjacent water absorption grooves, and the gel groove sequentially penetrates through the upper polyurethane foam layer, the hydrophilic non-woven fabric layer and the lower polyurethane foam layer from top to bottom;
the distance between the water absorption groove and the gel groove is larger than 4mm.
2. The hydrophilic-enhanced polyurethane composite medical foam according to claim 1, wherein: the polyurethane foam surface layer is characterized by further comprising a release film layer, wherein the release film layer is positioned at the top of the upper polyurethane foam surface layer.
3. The hydrophilic-enhanced polyurethane composite medical foam according to claim 1, wherein: the widths of the water absorption grooves and the gel grooves are all larger than 1mm.
4. The hydrophilic-enhanced polyurethane composite medical foam according to claim 1, wherein: the gel coating is an epidermal growth factor gel.
5. The hydrophilic-enhanced polyurethane composite medical foam according to claim 1, wherein: the upper polyurethane foam layer and the lower polyurethane foam layer are bonded through hot pressing.
6. The hydrophilic-enhanced polyurethane composite medical foam according to claim 1, wherein: the back lining layer is one of PE film, PET film or PP film.
7. The hydrophilic-enhanced polyurethane composite medical foam according to claim 1, wherein: the thickness of the hydrophilic non-woven fabric layer is 8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223575069.6U CN219166888U (en) | 2022-12-30 | 2022-12-30 | Polyurethane composite medical foam capable of improving hydrophilicity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223575069.6U CN219166888U (en) | 2022-12-30 | 2022-12-30 | Polyurethane composite medical foam capable of improving hydrophilicity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219166888U true CN219166888U (en) | 2023-06-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223575069.6U Active CN219166888U (en) | 2022-12-30 | 2022-12-30 | Polyurethane composite medical foam capable of improving hydrophilicity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219166888U (en) |
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2022
- 2022-12-30 CN CN202223575069.6U patent/CN219166888U/en active Active
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