CN204364238U - Wound dressing - Google Patents
Wound dressing Download PDFInfo
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- CN204364238U CN204364238U CN201420773934.4U CN201420773934U CN204364238U CN 204364238 U CN204364238 U CN 204364238U CN 201420773934 U CN201420773934 U CN 201420773934U CN 204364238 U CN204364238 U CN 204364238U
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Abstract
This utility model provides a kind of wound dressing, its structure sequentially comprises backing, absorbed layer and capillary structure layer, wherein, capillary structure layer has a plurality of capillary structure, utilize the excess tissue liquid on wound dressing of the present utility model sustainable absorption wound and wound can not be caused over-drying, thus helping wound healing.
Description
Technical field
This utility model has about a kind of wound dressing, especially about a kind of wound dressing with capillary structure.
Background technology
The wound normal healing of health is a complex process starting to act on when damage.First, health flows to wound by blood and sends protein and other blood coagulation substance, minimum to make injury be down to.Blood clotting to prevent from losing blood, the simultaneously antibacterial of cytophagy wound and remains.Next, be called as the healing phases of proliferation period, health starts to repair self, and granulation tissue deposition is in wound surface.Granulation tissue provides base structure on wound, and cell internally can move to surround closedown wound from the periphery of wound.Finally, along with passage of time forms cicatrix.
Known wound dressing only adopts the mode of physical absorption, and the blood that all wounds of sucking-off ooze out and tissue fluid, make wound keep dry.But known wound dressing the ambient humidity of uncontrollable wound perimeter, over-drying environment can affect the healing of wound on the contrary.
A kind of technology controlling wound moisture promotion normal healing process that can utilize during proliferation period is referred to as negative pressure wound therapy (negative pressure wound treatment, NPWT).Negative pressure wound therapy utilizes easy negative pressure source, such as vacuum pump, in conjunction with sealing patch, soft sucker and biocompatibility porous material, in wound, form subnormal ambient, extract wound pus and infected material, attraction health tissues liquid maintains moist Curing circumstance and blood microcirculation and reach the effect of accelerating wound healing arround promoting.Negative pressure wound therapy utilizes the normal healing process of health, can effectively promote that blood flow to wound area, stimulates the formation of granulation tissue and the migration of health tissues above wound.Negative pressure wound therapy is by removing the fluid and bacteria growing inhibiting that ooze out from wound.
But negative pressure wound therapy utilizes the subnormal ambient in negative pressure source maintenance dressing, the excess tissue liquid of institute's sucking-off then needs to utilize pipeline to be delivered to fluid reservoir and stores.Therefore in known negative pressure wound treating system, except the dressing contacted with wound surface, still must comprise provide negative pressure to originate pump, for the pipeline that connects and the fluid reservoir storing excess tissue liquid etc. element.The setting of these elements not only causes inconvenience when more change dressings, more can limit the movement of patient.
Therefore, still need a kind of easy wound dressing at present, it does not need the setting of collocation negative pressure source and pipeline, and still can control the humidity of wound climate, continues the excess tissue liquid of absorption wound, wound surface can not be made again over-drying.
Utility model content
In view of this, one of the purpose of this utility model is to provide a kind of light wound dressing, and it is by the setting of capillary structure layer and absorbed layer, the tissue fluid that sustainable absorption wound is unnecessary, make wound be in wet environment and do not occur infiltration phenomenon, and then helping wound healing.
This utility model provides a kind of wound dressing, and it comprises backing; Absorbed layer, is positioned on backing: and capillary structure layer, and be positioned on absorbed layer, wherein, capillary structure layer has a plurality of capillary structure.
According to an embodiment of the present utility model, aforementioned capillary structure is micro-cavernous structure and the aperture of each micro-cavernous structure is that 0.6 millimeter (mm) is to 2.5 millimeters (mm).
According to an embodiment of the present utility model, the ratio of the surface area summation of aforementioned capillary structure and the surface area of aforementioned capillary structure layer is 45% to 60%.
According to an embodiment of the present utility model, the height of aforementioned capillary structure layer is that 5 millimeters (mm) are to 20 millimeters (mm).
According to an embodiment of the present utility model, aforementioned capillary structure is microcilium shape structure, and the interstructural distance of adjacent microcilium shape is that 0.3 millimeter (mm) is to 1.25 millimeters (mm).
According to an embodiment of the present utility model, the ratio of the surface area summation of aforementioned capillary structure and the surface area of aforementioned capillary structure layer is 5% to 20%.
According to an embodiment of the present utility model, aforementioned capillary structure layer is TPO macromolecule capillary structure layer, polyesters macromolecule capillary structure layer, silica gel capillary structure layer, tetrafluoro ethylene polymer capillary structure layer or its compound capillary structure layer.
According to an embodiment of the present utility model, the thickness of prior absorbent layer is that 2 millimeters (mm) are to 20 millimeters (mm).
According to an embodiment of the present utility model, prior absorbent layer is fibrous layer, fiber sponge layer, sponge layer, super absorbent polymer layer, hydrogel material layer, layer of gel material or its combination.
According to an embodiment of the present utility model, aforementioned backing is impermeable elastica.
The content of above-mentioned utility model aims to provide the simplification summary of this disclosure, possesses basic understanding to make reader to this disclosure.This utility model content is not the complete overview of this disclosure, and its purpose is not being pointed out the key/critical element of this utility model embodiment or defining scope of the present utility model.After consulting following description, those skilled in the art are when understanding the technological means and embodiment that essence spirit of the present utility model and this utility model adopt easily.
Accompanying drawing explanation
Fig. 1 illustrates the side structure schematic diagram of wound dressing of the present utility model.
Fig. 2 illustrates the partial enlarged drawing of an embodiment of the capillary structure layer of wound dressing of the present utility model.
Fig. 3 illustrates the partial enlarged drawing of another embodiment of the capillary structure layer of wound dressing of the present utility model.
Detailed description of the invention
Hereinafter with reference to relevant drawings, the embodiment according to wound dressing of the present utility model is described, for making to be convenient to understand, the similar elements in following embodiment illustrates with identical symbology.Below describe in, the exemplary configuration of above-mentioned wound dressing will be introduced.In order to easily understand the event of described embodiment, many ins and outs will be provided below.Certainly, not all embodiment all needs these ins and outs.Meanwhile, some structures be widely known by the people or element, only can draw in a schematic manner in the accompanying drawings, suitably to simplify accompanying drawing content.The accompanying drawing used, its purport is only signal and the use of aid illustration book, may not for this utility model implement after actual proportions and precisely configure, therefore should not understand with regard to the ratio of accompanying drawing and configuration relation, limit to the interest field of this utility model on reality is implemented.
Advantage of the present utility model, feature and the technical method reached are explained in more detail with reference to exemplary embodiments and accompanying drawing and are easier to understand, and this utility model or can realize in different forms, therefore should not be understood the embodiment being only limitted to the statement of this place, on the contrary, for those skilled in the art, the embodiment provided will make this exposure more thorough with comprehensively and intactly pass on category of the present utility model, and the scope that this utility model will only be claim defined.
And unless otherwise defined, allly be used in term (comprising science and technology and scientific terminology) hereinafter and proper noun, in general understood equivalent in meaning with those skilled in the art in fact, and those terms such as defined in general used dictionary should be understood to have the meaning consistent with the content of association area, unless and be defined in hereinafter significantly, will not understand with the excessively idealized or excessively formal meaning.
Refer to Fig. 1, the side structure schematic diagram of Fig. 1 wound dressing 100 of the present utility model.As shown in Figure 1, the structure of wound dressing 100 of the present utility model sequentially comprises backing 110, absorbed layer 120 and capillary structure layer 130.
Backing 110 is configured in above wound, and in one embodiment, backing 110 edge can have binding agent (not illustrating) near the side of wound, makes backing 110 and periwound skin tight seal.In another embodiment, backing 110, by the skin of external labeling type adhesive tape sticking in wound circumference, makes wound circumference form sealed environment.Therefore, backing 110 can enter wound as microbial barrier to prevent pollutant, and absorbed layer 120 and capillary structure layer 130 are fixed on above wound.On the implementation, the material of backing 110 can be moisture vapour transmission film, to promote the exchange of oxygen between wound and air and dampness.Backing 110 also can be impermeable film or rigid element.Consider ease of use and the stickiness for wound, in an embodiment of the present utility model, backing 110 is impermeable elastica.
Absorbed layer 120 is positioned on backing 110, and in order to provide the absorbing power to tissue fluid, and the surface area of backing 110 is greater than the surface area of absorbed layer 120.The thickness H1 of absorbed layer 120 can adjust according to the maximum fluid storage space needed for it, and on the implementation, the thickness H1 of absorbed layer 120 about can be 2 millimeters (mm) to 20 millimeters (mm).In an embodiment of the present utility model, the material of absorbed layer 120 comprises, but be not limited to, fiber, fiber sponge, foamed materials, super absorbent polymer, hydrogel material, gel rubber material or its combination, namely absorbed layer 120 can be fibrous layer, fiber sponge layer, sponge layer, super absorbent polymer layer, hydrogel material layer, layer of gel material or its combination.
Capillary structure layer 130 is positioned on absorbed layer 120, have a plurality of capillary structure 131, and the surface area of absorbed layer 120 is more than or equal to the surface area of capillary structure layer 130, to provide uniform absorbing power.Capillarity (also known as capillarity) refers to that liquid is inside thin tube-like object, due to cohesiveness and adhesive force difference, overcome centrifugal force and the phenomenon risen.Capillary structure layer 130 directly contacts with wound, and when the cohesiveness of the tissue fluid that wound flows out is with when being greater than the gravity of tissue fluid to the adhesive force of capillary structure layer 130, tissue fluid can diffuse to absorbed layer 120 end by capillarity.And by the absorbing power of absorbed layer 120, the excess tissue liquid on sustainable absorption wound, makes wound be in wet environment and does not occur infiltration phenomenon, effectively can help wound healing.In addition, by the setting of capillary structure layer 130, wound does not directly contact with absorbed layer 120, therefore does not have the problem that known wound dressing makes wound surface over-drying because of constant absorption tissue fluid.
In an embodiment of the present utility model, capillary structure layer 130 has a plurality of capillary structure 131, capillary structure 131 is micropore shape, the aperture of each micropore shape capillary structure 131 is that 0.6 millimeter (mm) is to 2.5 millimeters (mm), the ratio of the surface area of the surface area summation of the wound facing face of the capillary structure 131 of a plurality of micropore shape and the wound facing face of capillary structure layer 130 is 45% to 60%, and the height H 2 of capillary structure layer 130 is that 5 millimeters (mm) are to 20 millimeters (mm), the capillary structure 131 of micropore shape directly and Wound contact, namely the excess tissue liquid of wound diffuse to absorbed layer 120 by capillarity, as shown in Figure 2, Fig. 2 illustrates the partial enlarged drawing of an embodiment of the capillary structure layer of wound dressing of the present utility model.
In another embodiment of the present utility model, the capillary structure 131 that capillary structure layer 130 has is microcilium shape, distance between adjacent microcilium shape capillary structure 131 is that 0.3 millimeter (mm) is to 1.25 millimeters (mm), the ratio of the surface area of the surface area summation of the wound facing face of the capillary structure 131 of a plurality of microcilium shape and the wound facing face of capillary structure layer 130 is 5% to 20%, and the height H 2 of capillary structure layer 130 is that 5 millimeters (mm) are to 20 millimeters (mm), the capillary structure 131 of microcilium shape directly and Wound contact, the excess tissue liquid of wound diffuses to absorbed layer 120 by the capillarity produced between ciliate capillary structure 131, as shown in Figure 3, Fig. 3 illustrates the partial enlarged drawing of another embodiment of the capillary structure layer of wound dressing of the present utility model.
Consider comfortableness when patient uses wound dressing 100, directly and the capillary structure layer 130 of Wound contact optionally through mechanical system tenderization, to increase pliability and the elasticity of capillary structure layer 130.Processability when considering manufacture and patient's comfortableness in use, in an embodiment of the present utility model, the material of capillary structure layer 130 can be such as the TPO macromolecule of biocompatibility, polyesters macromolecule, silica gel, tetrafluoro ethylene polymer or its complex, and namely capillary structure layer 130 can be TPO macromolecule capillary structure layer, polyesters macromolecule capillary structure layer, silica gel capillary structure layer, tetrafluoro ethylene polymer capillary structure layer or its compound capillary structure layer.
Accordingly, when using wound dressing 100 of the present utility model, under the state forming sealing wound with backing 110, excess tissue liquid on wound diffuses to absorbed layer 120 via capillary structure layer 130, the effect of the absorbing power provided by absorbed layer 120 and the tissue fluid of sustainable generation withhold excessive because of capillarity.Wound dressing 100 of the present utility model can appropriateness absorption wound on excess tissue liquid, make the humidity that wound remains suitable, with the blood circulation effect making wound remain good, and then promote wound healing.
This utility model has following advantage:
1. compare the negative pressure wound therapy that known techniques uses, because wound dressing of the present utility model does not need additionally to arrange the elements such as negative pressure source, negative pressure controller, pipeline and fluid reservoir, thus comparatively light in use, also can not affect the action of patient.
2. mode of operation is easy, outward appearance and general wound dressing close.
3., because only there being unnecessary tissue fluid to diffuse to absorbed layer, compared to generally traditional wound dressing, wound dressing of the present utility model more easily can control the humidity in sealed environment, can not because of absorbing material directly and Wound contact and make wound surface over-drying.
4., by the setting of capillary structure layer, the tissue fluid be stored in absorbed layer can not make wound produce infiltration phenomenon.
5. the optional wound dressing with having different capillary structure layer in wound healing stage in various degree, provides different absorption affinities by different capillary structure layers, the effusion degree had to coordinate different phase.
From the above, can the tissue fluid of withhold excessive according to wound dressing of the present utility model, wound is maintained in suitable humidity, and wound can not be made over-drying, the healing of wound can be promoted.In addition, the negative pressure wound therapy used in known techniques, uses wound dressing of the present utility model also to have light, simple operation and other advantages.
Although this utility model discloses as above with embodiment; so itself and be not used to limit this utility model; above-described embodiment is only and technological thought of the present utility model and feature is described; its object understands content of the present utility model implementing according to this enabling those skilled in the art; when can not with restriction the scope of the claims of the present utility model; namely the equalization change that the spirit generally disclosed according to this utility model is done or modification; must be encompassed in the scope of the claims of the present utility model, protection domain of the present utility model is when being as the criterion depending on those as defined in claim.
Claims (10)
1. a wound dressing, is characterized in that this wound dressing comprises:
Backing;
Absorbed layer, is positioned on this backing; And
Capillary structure layer, is positioned on this absorbed layer, and wherein this capillary structure layer has a plurality of capillary structure.
2. wound dressing as claimed in claim 1, it is characterized in that this plurality of capillary structure is micro-cavernous structure, and the aperture of each micro-cavernous structure is 0.6 millimeter to 2.5 millimeters.
3. wound dressing as claimed in claim 2, is characterized in that the ratio of the surface area summation of this plurality of capillary structure and the surface area of this capillary structure layer is 45% to 60%.
4. wound dressing as claimed in claim 1, is characterized in that the height of this capillary structure layer is 5 millimeters to 20 millimeters.
5. wound dressing as claimed in claim 1, it is characterized in that this plurality of capillary structure is microcilium shape structure, and the interstructural distance of adjacent microcilium shape is 0.3 millimeter to 1.25 millimeters.
6. wound dressing as claimed in claim 5, is characterized in that the ratio of the surface area summation of this plurality of capillary structure and the surface area of this capillary structure layer is 5% to 20%.
7. wound dressing as claimed in claim 1, is characterized in that this capillary structure layer is TPO macromolecule capillary structure layer, polyesters macromolecule capillary structure layer, silica gel capillary structure layer, tetrafluoro ethylene polymer capillary structure layer or its compound capillary structure layer.
8. wound dressing as claimed in claim 1, is characterized in that the height of this absorbed layer is 2 millimeters to 20 millimeters.
9. wound dressing as claimed in claim 1, is characterized in that this absorbed layer is fibrous layer, fiber sponge layer, sponge layer, super absorbent polymer layer, hydrogel material layer, layer of gel material or its combination.
10. wound dressing as claimed in claim 1, is characterized in that this backing is impermeable elastica.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420773934.4U CN204364238U (en) | 2014-12-10 | 2014-12-10 | Wound dressing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420773934.4U CN204364238U (en) | 2014-12-10 | 2014-12-10 | Wound dressing |
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| CN204364238U true CN204364238U (en) | 2015-06-03 |
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| CN201420773934.4U Active CN204364238U (en) | 2014-12-10 | 2014-12-10 | Wound dressing |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105193553A (en) * | 2015-08-12 | 2015-12-30 | 万龙 | Water-absorbent non-woven fabric and preparation method thereof as well as medical non-woven fabric |
| CN106668960A (en) * | 2016-12-20 | 2017-05-17 | 明基材料有限公司 | Biological membrane inhibiting microstructure |
-
2014
- 2014-12-10 CN CN201420773934.4U patent/CN204364238U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105193553A (en) * | 2015-08-12 | 2015-12-30 | 万龙 | Water-absorbent non-woven fabric and preparation method thereof as well as medical non-woven fabric |
| CN106668960A (en) * | 2016-12-20 | 2017-05-17 | 明基材料有限公司 | Biological membrane inhibiting microstructure |
| CN106668960B (en) * | 2016-12-20 | 2019-12-20 | 明基材料有限公司 | Biofilm-inhibiting microstructure material and medical equipment |
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