CN203408164U - Novel composite foam material for negative pressure wound therapy - Google Patents
Novel composite foam material for negative pressure wound therapy Download PDFInfo
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- CN203408164U CN203408164U CN201320496313.1U CN201320496313U CN203408164U CN 203408164 U CN203408164 U CN 203408164U CN 201320496313 U CN201320496313 U CN 201320496313U CN 203408164 U CN203408164 U CN 203408164U
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- foam material
- sponge layer
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Abstract
The utility model discloses a novel composite foam material for negative pressure wound therapy. The novel composite foam material for negative pressure wound therapy comprises a PVA (Polyvinyl Acetate) water-absorbing foam material layer, wherein a softened foam material layer of a three-dimensional mesh space structure is arranged under the PVA water-adsorbing foam material layer, the PVA water-adsorbing foam material layer and the softened foam material layer are fixedly interconnected through a bonding surface, and the bonding surface is provided with three-dimensional communicated micropores by which the three-dimensional mesh space structure of the softened foam material layer and the three-dimensional mesh space structure of the PVA water-adsorbing foam material layer are communicated. The softened foam material layer and the wound surface cannot be adhered together after being put together for long time, and when the softened foam material layer is uncovered, the wound surface cannot bleed and cannot be hurt for the second time, so that clinical indications are expanded greatly, and success rate of applications, such as skin-grafting and transposition of flap, is increased greatly; after being dewatered to be dry, the softened foam material layer keeps soft, so that the problems of side effects and failure of negative pressure wound therapy because the existing PVA foam material becomes hard after being dewatered and the dewatered foam material presses the tissue and wound surface, are avoided.
Description
Technical field
This utility model relates to a kind of negative pressure treatment NEW TYPE OF COMPOSITE foamed materials.
Background technology
It is the critical material of negative pressure treatment that negative pressure is protected wound foamed materials, and its performance directly determines clinical effectiveness and clinical indication scope.Desirable foam performance is as follows: a) negative pressure is protected wound foamed materials and wound surface and placed for a long time adhesion, not hemorrhage while opening material, wound surface is not caused to secondary damage; B) negative pressure protect wound foamed materials can not additional antifungus agent and antibiotic, avoid the side effect such as topical antibiotic; C) negative pressure is protected after wound foamed materials dehydration exsiccation, should keep soft, avoids the side effect of organizing and wound surface compressing causes; D) to protect wound foamed materials elasticity suitable for negative pressure, can effectively conduct negative pressure, can avoid again elasticity to cause too greatly wound pain; E) to protect wound foamed materials absorbent good for negative pressure; F) negative pressure is protected wound foamed materials splendid negative pressure conductive performance, mesh intercommunication and mesh size to fit.
The conventional negative pressure of current clinical ability is protected wound foamed materials and is generally the aquation polyvinyl alcohol foam material (PVA) of one deck or Plant fiber's foamed materials of one deck polyurethane foamed material (PU) or one deck (being generally to process through chemical industry through chalina).
The performance deficiency of aquation polyvinyl alcohol foam material (PVA): a) the additional antifungus agent of foamed materials and antibiotic, prevent that aquation polyvinyl alcohol foam material (PVA) is mouldy, for example, yet the side effect such as topical antibiotic are large: skin blister, violate medical routine and medical instrument management regulation; B) hardening (hardness and Gypsum Fibrosum are suitable) after material dehydration exsiccation, causes negative pressure conduction failure, treatment failure and other side effect of human body.
The defect of polyurethane foamed material (PU) and Plant fiber's foamed materials: a) material and wound surface are placed adhesion for a long time, hemorrhage while opening material, cause wound surface secondary damage; B) material absorbent is not good.
Utility model content
The purpose of this utility model, is to provide a kind of negative pressure treatment NEW TYPE OF COMPOSITE foamed materials.
The solution that this utility model solves its technical problem is: negative pressure treatment NEW TYPE OF COMPOSITE foamed materials, it comprises the PVA water suction sponge layer of three-dimensional mesh space structure, the below of described PVA water suction sponge layer arranges the softening sponge layer of three-dimensional mesh space structure, between described PVA water suction sponge layer and softening sponge layer, by adhesive surface, be fixedly connected with, described adhesive surface is provided with three-dimensional intercommunication micropore, described three-dimensional intercommunication micropore makes the three-dimensional mesh space structure of softening sponge layer be communicated with the three-dimensional mesh space structure of PVA water suction sponge layer.
As the further improvement of technique scheme, the area of the Area Ratio PVA of described softening sponge layer water suction sponge layer is large
As the further improvement of technique scheme, the thickness of the Thickness Ratio PVA of described softening sponge layer water suction sponge layer is little.
As the further improvement of technique scheme, the thickness of described softening sponge layer is 1 ~ 2 millimeter, and the thickness of described PVA water suction sponge layer is 2 ~ 5 millimeters.
The beneficial effects of the utility model are: protect wound foamed materials with present negative pressure and compare, have a little following:
1, softening sponge layer and wound surface are placed adhesion for a long time, not hemorrhage while opening softening sponge layer, wound surface are not caused to secondary damage, have greatly widened clinical indication and improved skin-grafting, transposition of flap etc. to be applied to power;
2, during packing, do not need to add antifungus agent and antibiotic, after having avoided at present conventional clinically PVA foamed materials dehydration to become dry, occur that hardness increases (suitable with Gypsum Fibrosum hardness), the problem that the side effect that the foamed materials of hardening causes tissue and wound surface compressing and negative pressure treatment lost efficacy;
3, this utility model belongs to ultra-thin type, and reasonable in design is saved the surgical adhesive membrane time widely;
4, PVA water suction sponge layer absorbent is good, and negative pressure conductive performance is good, mesh intercommunication and mesh size to fit;
5, softening sponge layer elasticity is suitable, can effectively conduct negative pressure, can avoid again elasticity to cause too greatly wound pain.
Accompanying drawing explanation
Below in conjunction with accompanying drawing and example, this utility model is further described.
Fig. 1 is cutaway view of the present utility model;
Fig. 2 is structural representation of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing, describe application of the present utility model in detail.
With reference to Fig. 1～Fig. 2, negative pressure treatment NEW TYPE OF COMPOSITE foamed materials, it comprises the PVA water suction sponge layer 1 of three-dimensional mesh space structure, after 1 water suction of PVA water suction sponge layer, expand, the below of described PVA water suction sponge layer 1 arranges the softening sponge layer 2 of three-dimensional mesh space structure, softening sponge layer 2 can be PVA material, can be also other suitable materials.Softening sponge layer 2 is placed adhesion for a long time with wound surface, not hemorrhage while opening softening sponge layer 2, wound surface is not caused to secondary damage, greatly widened clinical indication and improved skin-grafting, transpositions of flap etc. are applied to power, between described PVA water suction sponge layer 1 and softening sponge layer 2, by adhesive surface 3, be fixedly connected with, described adhesive surface 3 is provided with three-dimensional intercommunication micropore, described three-dimensional intercommunication micropore makes the three-dimensional mesh space structure of softening sponge layer 2 be communicated with the three-dimensional mesh space structure of PVA water suction sponge layer 1, PVA water suction sponge layer 1 absorbent is good, negative pressure conductive performance is good, mesh intercommunication and mesh size to fit.This utility model does not need to add antifungus agent and antibiotic, avoids the side effect such as topical antibiotic; After softening sponge layer 2 dehydrations become dry, keep soft, after at present conventional PVA foamed materials dehydration becomes dry, occur that hardness increases (suitable with Gypsum Fibrosum hardness), the problem that the side effect that the foamed materials of hardening causes tissue and wound surface compressing and negative pressure treatment lost efficacy.
Be further used as preferred embodiment, the area of the Area Ratio PVA water suction sponge layer 1 of described softening sponge layer 2 is large, like this can be so that wound surface all in softening the coverage of sponge layer 2, makes PVA water suction sponge layer 1 can not directly contact human body.
Be further used as preferred embodiment, the thickness of the Thickness Ratio PVA water suction sponge layer 1 of described softening sponge layer 2 is little.
Be further used as preferred embodiment, the thickness of described softening sponge layer 2 is 1 ~ 2 millimeter, and the thickness of described PVA water suction sponge layer 1 is 2 ~ 5 millimeters, ultra-thin type, and reasonable in design, saves the surgical adhesive membrane time widely.
More than that better embodiment of the present utility model is illustrated, but the invention is not limited to described embodiment, those of ordinary skill in the art also can make all equivalent modifications or replacement under the prerequisite without prejudice to this utility model spirit, and the modification that these are equal to or replacement are all included in the application's claim limited range.
Claims (4)
1. negative pressure treatment NEW TYPE OF COMPOSITE foamed materials, it is characterized in that: it comprises the PVA water suction sponge layer of three-dimensional mesh space structure, the below of described PVA water suction sponge layer arranges the softening sponge layer of three-dimensional mesh space structure, between described PVA water suction sponge layer and softening sponge layer, by adhesive surface, be fixedly connected with, described adhesive surface is provided with three-dimensional intercommunication micropore, and described three-dimensional intercommunication micropore makes the three-dimensional mesh space structure of softening sponge layer be communicated with the three-dimensional mesh space structure of PVA water suction sponge layer.
2. negative pressure treatment according to claim 1 NEW TYPE OF COMPOSITE foamed materials, is characterized in that: the area of the Area Ratio PVA water suction sponge layer of described softening sponge layer is large.
3. negative pressure treatment according to claim 1 NEW TYPE OF COMPOSITE foamed materials, is characterized in that: the thickness of the Thickness Ratio PVA water suction sponge layer of described softening sponge layer is little.
4. negative pressure treatment according to claim 3 NEW TYPE OF COMPOSITE foamed materials, is characterized in that: the thickness of described softening sponge layer is 1 ~ 2 millimeter, and the thickness of described PVA water suction sponge layer is 2 ~ 5 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320496313.1U CN203408164U (en) | 2013-08-14 | 2013-08-14 | Novel composite foam material for negative pressure wound therapy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320496313.1U CN203408164U (en) | 2013-08-14 | 2013-08-14 | Novel composite foam material for negative pressure wound therapy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203408164U true CN203408164U (en) | 2014-01-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320496313.1U Expired - Lifetime CN203408164U (en) | 2013-08-14 | 2013-08-14 | Novel composite foam material for negative pressure wound therapy |
Country Status (1)
| Country | Link |
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| CN (1) | CN203408164U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112773927A (en) * | 2020-12-24 | 2021-05-11 | 江苏申思生物科技有限公司 | Efficient and environment-friendly PVA/PU multilayer foam dressing manufacturing method |
-
2013
- 2013-08-14 CN CN201320496313.1U patent/CN203408164U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112773927A (en) * | 2020-12-24 | 2021-05-11 | 江苏申思生物科技有限公司 | Efficient and environment-friendly PVA/PU multilayer foam dressing manufacturing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: GUANGDONG MEIJIE WEITONG BIOTECHNOLOGY CO., LTD. Free format text: FORMER OWNER: ZHU XINSHENG Effective date: 20150528 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 510006 GUANGZHOU, GUANGDONG PROVINCE TO: 510530 GUANGZHOU, GUANGDONG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20150528 Address after: 510530, A7 building, No. 11, Kaiyuan Avenue, Guangzhou hi tech Industrial Development Zone, Guangdong, Fourth Patentee after: GUANGDONG MEIJI BIOTECHNOLOGY Co.,Ltd. Address before: 510006 A7 building, No. 11, Kaiyuan Avenue, Guangzhou Science City, Guangdong, 4 Patentee before: Zhu Xinsheng |
|
| CX01 | Expiry of patent term |
Granted publication date: 20140129 |
|
| CX01 | Expiry of patent term |