CN102258799B - Medical compound dressing and preparation method thereof - Google Patents
Medical compound dressing and preparation method thereof Download PDFInfo
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- CN102258799B CN102258799B CN201010183089.1A CN201010183089A CN102258799B CN 102258799 B CN102258799 B CN 102258799B CN 201010183089 A CN201010183089 A CN 201010183089A CN 102258799 B CN102258799 B CN 102258799B
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Abstract
The invention relates to a medical compound dressing prepared from a hydrogel dressing part and a foam dressing part compounded with the hydrogel dressing part, wherein the foam dressing part is provided with a containing space, the hydrogel dressing part is arranged in the containing space, and the containing space is a cavity of a rectangular, square, round or other combined shapes. The medical compound dressing can provide a moist environment for quick healing of wounds, simultaneously can absorb excessive exudates of the wounds, and can not cause secondary wound due to adhesion to the wounds. The invention also relates to a method for preparing the medical compound dressing.
Description
[technical field]
The present invention relates to a kind of medical dressing, particularly relate to a kind of Medical composite dressing that comprises aerogel dressing and foam dressing.The invention still further relates to a kind of method for preparing this Medical composite dressing.
[background technology]
Along with the continuous progress of society and the quickening of social rhythm, the skin trauma accident often occurs in people in work and daily life.At present, the medical wound dressing for skin trauma mainly contains traditional dressing and synthetic dressing.Traditional dressing refers to common medical absorbent cotton, gauze etc., and these dressing easily and the adhesion of wound surface granulation tissue, secondary insult occur when removing, and can be because of the easy breed bacteria of wound surface hydrops.More Hydrogels dressing and the dressing of foam class of mainly containing of application in synthetic dressing.The main component of Hydrogels dressing is to take the hydrogel material that water is disperse medium, and it introduces a part of hydrophobic group in having the water soluble polymer of cross-linked structure, forms the cross linked polymer of water-swellable.Hydrogels dressing can the continuous absorption wound transudate, can build the wet union environment of a gentleness for wound, be beneficial to wound healing, and can the adhesion wound and cause secondary damage, use and change simple.The weak point of Hydrogels dressing is, this class dressing can swelling at absorbing wound exudate with while meeting water, wound is caused to certain pressure, and also can flood the skin histology of wound circumference health when wound fluid is too much.Therefore, Hydrogels dressing is mainly used in the low leaching wound.Foam class dressing majority is polyurethane material, and this class dressing structure has porous, and good permeability, liquid is had to larger absorptive capacity, and absorb after liquid do not break, odorlessness, the material softness, human comfort is good, is mainly used in moderate to severe and oozes out wound.The weak point of foam class dressing is, this class dressing is difficult to maintain the wet union environment of wound, little to the accelerating wound healing effect.
Therefore, need a kind of novel medical dressing, make the wet union environment that both can maintain wound, can keep fine air permeability again, and liquid is had to larger absorptive capacity.
[summary of the invention]
The present invention wants the technical solution problem to be to provide a kind of Medical composite dressing, it can remain in dressing transudate is all or part of, for wound maintains the microenvironment of a wet union, can absorb again the more liquid body exudate of wound surface simultaneously, obtain abundant drain, keep the drying property of wound circumference skin.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is: a kind of Medical composite dressing is provided, it comprises aerogel dressing part and the foam dressing part compound with this aerogel dressing part, this foam dressing partly has accommodation space, foam dressing is recessed to form a cavity downwards and forms accommodation space, the thickness of described aerogel dressing part is less than the degree of depth of described accommodation space, make near the formation depression opening of described cavity, avoid or alleviate described aerogel dressing part expanding to skin generation extruding because absorbing liquid body exudate or moisture;
It is partly by polyvinyl alcohol that this aerogel dressing partly is located at this aerogel dressing in this accommodation space, polyethylene glycol oxide, polyvinylpyrrolidone, sodium polyacrylate, polyacrylamide, 2-(Acryloyloxy)ethanol, at least one in polyethylene glycol methacrylate-styrene polymer and polyethylene glycol dimethacrylate made, this foam dressing is partly that at least one in polyurethane foam and polyvinyl alcohol foam made, this foam dressing partly has autohension, this Medical composite dressing also comprises the backing part compound with this foam dressing part, this backing partly has autohension.
According to another embodiment of the present invention, this accommodation space is shaped to the cavity to lower recess, and the degree of depth of this cavity is less than the thickness of this foam dressing part.
According to another embodiment of the present invention, the shape of this accommodation space is square, rectangle or circle.
The present invention also provides a kind of preparation method of this Medical composite dressing, prepares respectively aerogel dressing part and foam dressing part, then by the two, is undertaken compound; Perhaps, aerogel dressing part and foam dressing part are prepared with compound simultaneously.
Compared to wound dressing of the prior art, Medical composite dressing of the present invention not only is conducive to wound and comparatively fast heals, and has avoided mouthful liquid body exudate due to wound too much to flood the skin of wound circumference.
[accompanying drawing explanation]
Can more specifically describe the present invention by embodiment with reference to accompanying drawing, wherein accompanying drawing is not proportionally drawn, in the accompanying drawings:
Fig. 1 is the front view of Medical composite dressing one embodiment according to the present invention;
Fig. 2 is the side sectional view of the part of foam dressing shown in Fig. 1;
Fig. 3 is the side sectional view of Medical composite dressing shown in Fig. 1;
Fig. 4 is the side sectional view of another embodiment of Medical composite dressing according to the present invention;
Fig. 5 is the front view of another embodiment of Medical composite dressing according to the present invention;
Fig. 6 is the front view of another embodiment of Medical composite dressing according to the present invention; And
Fig. 7 is the front view of another embodiment of Medical composite dressing according to the present invention.
[specific embodiment]
Below in conjunction with drawings and Examples, the present invention is described in detail.
Refer to Fig. 1, Fig. 1 is the front view of Medical composite dressing one embodiment according to the present invention.As can be seen from Figure 1, this Medical composite dressing embodiment comprises two parts, i.e. aerogel dressing part 11 and foam dressing part 12.Wherein, this aerogel dressing part 11 is that at least one in polyvinyl alcohol, polyethylene glycol oxide, polyvinylpyrrolidone, sodium polyacrylate, polyacrylamide, 2-(Acryloyloxy)ethanol, polyethylene glycol methacrylate-styrene polymer, polyethylene glycol dimethacrylate made; Foam dressing part 12 is that at least one in polyurethane foam and polyvinyl alcohol foam made.In addition, foam dressing part 12 can be autohension.
In the embodiment shown in fig. 1, in foam dressing part 12 central areas (being not limited to central area), be recessed to form a cavity downwards, so that aerogel dressing part 11 and foam dressing part 12 are combined with each other.Fig. 2 has shown the cutaway view of this cavity, and the depth H 1 of this cavity is less than the thickness H2 of foam dressing part 12, and has open top (not indicating).Fig. 3 has shown that aerogel dressing part 11 inserts the side sectional view in foam dressing part 12 cavitys.In Fig. 3, the shape of cavity, size and depth H 1 are corresponding with shape, size and the thickness H3 of aerogel dressing part 11 respectively, make aerogel dressing part 11 adaptations be held in this cavity, and contact with foam dressing part 12.When using this Medical composite dressing, aerogel dressing part 11 is covered to the skin wound place, therefore, the liquid that wound oozes out can directly be absorbed by aerogel dressing part 11, guarantee that wound keeps moist microenvironment, be conducive to wound and comparatively fast heal, and not there will be the phenomenon of dressing and wound adhesion.When the liquid oozed out when wound is more, the foam dressing part 12 of aerogel dressing part 11 peripheries can absorb unnecessary liquid, is conducive to keep the drying property of the peripheral skin of wound.
Consider that aerogel dressing partly has the characteristic of imbibition, more and expand when larger when water suction, will produce certain pressure to wound, be unfavorable on the contrary wound healing.For this situation, provide the another embodiment of Medical composite dressing of the present invention.Fig. 4 has shown the side sectional view of this embodiment.As can be seen from Figure 4, the thickness H23 of aerogel dressing part 21 is less than the depth H 21 of cavity, makes and form depression near the opening of cavity.This structure can be avoided or alleviate aerogel dressing part 21 and expand to skin generation extruding because absorbing more liquid body exudate or moisture.
Fig. 5 and Fig. 7 have shown respectively according to the present invention the front view of the another kind of embodiment of Medical composite dressing.In Fig. 5, foam dressing part 32 comprises two accommodation spaces, has placed two aerogel dressing parts 31 in it.Fig. 7 has shown that aerogel dressing part 51 is embodiment of two.
The shape of aerogel dressing part can have multiple, and as circle, ellipse and combined shaped etc., Fig. 6 has shown that aerogel dressing part 41 is oval-shaped embodiment.
Can find out from the embodiment of Fig. 5, Fig. 6 and Fig. 7 demonstration, according to skin wound type (as size, shape, position etc.) difference, can carry out various deformation to the composite construction of Medical composite dressing of the present invention.
In addition, Medical composite dressing of the present invention and back lining materials (as polyurethane film, medical adhesive-bonded fabric, cotton dimension blended cloth etc.) can be carried out compoundly, form the Medical composite dressing with the backing part.
For the preparation method of Medical composite dressing of the present invention, can prepare respectively aerogel dressing and foam dressing, and then two kinds of dressing are compound.Also the preparation of aerogel dressing and foam dressing and mixed binding can be got up, directly produce Medical composite dressing of the present invention.
Medical composite dressing of the present invention reasonably carries out structure composite by aerogel dressing and foam dressing, takes full advantage of the advantage of aerogel dressing and foam dressing, has overcome the deficiency of independent use aerogel dressing and foam dressing.Utilize this Medical composite dressing can either the hyperabsorption sepage, simultaneously also can be for wound provides the wet union environment, accelerating wound healing, the adhesion wound, can not cause secondary damage.
In the above-described embodiments, only the present invention has been carried out to exemplary description, but those skilled in the art can carry out various modifications to the present invention without departing from the spirit and scope of the present invention after reading present patent application.
Claims (4)
1. a Medical composite dressing, it is characterized in that: comprise aerogel dressing part and the foam dressing part compound with described aerogel dressing part, described foam dressing partly has accommodation space, described foam dressing is recessed to form a cavity downwards and forms described accommodation space, described aerogel dressing partly is located in described accommodation space, the thickness of described aerogel dressing part is less than the degree of depth of described accommodation space, make and form depression near the opening of described cavity, avoid or alleviate described aerogel dressing part expanding to skin generation extruding because absorbing liquid body exudate or moisture,
Described aerogel dressing is partly that at least one in polyvinyl alcohol, polyethylene glycol oxide, polyvinylpyrrolidone, sodium polyacrylate, polyacrylamide, 2-(Acryloyloxy)ethanol, polyethylene glycol methacrylate-styrene polymer and polyethylene glycol dimethacrylate made, described foam dressing is partly that at least one in polyurethane foam and polyvinyl alcohol foam made, described foam dressing partly has autohension, described Medical composite dressing also comprises the backing part compound with described foam dressing part, and described backing partly has autohension or do not have autohension.
2. Medical composite dressing according to claim 1, it is characterized in that: described accommodation space is shaped to the cavity to lower recess, and the degree of depth of described cavity is less than the thickness of described foam dressing part.
3. Medical composite dressing according to claim 2 is characterized in that: the shape of described accommodation space is square, rectangle or circle.
4. the preparation method according to the described Medical composite dressing of any one in claims 1 to 3, it is characterized in that: prepare respectively described aerogel dressing part and described foam dressing part, and then partly carry out compound by described aerogel dressing part and described foam dressing; Perhaps, described aerogel dressing part and described foam dressing part are prepared with compound simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010183089.1A CN102258799B (en) | 2010-05-26 | 2010-05-26 | Medical compound dressing and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010183089.1A CN102258799B (en) | 2010-05-26 | 2010-05-26 | Medical compound dressing and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN102258799A CN102258799A (en) | 2011-11-30 |
| CN102258799B true CN102258799B (en) | 2014-01-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201010183089.1A Active CN102258799B (en) | 2010-05-26 | 2010-05-26 | Medical compound dressing and preparation method thereof |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105536038B (en) * | 2015-12-25 | 2019-11-19 | 厦门百美特生物材料科技有限公司 | Foam-based dressing and preparation method thereof |
| CN107928874A (en) * | 2017-12-18 | 2018-04-20 | 广东泰宝医疗科技股份有限公司 | A kind of comfort medical dressing |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE29721345U1 (en) * | 1997-12-03 | 1998-02-26 | Kirner, Markus, 74074 Heilbronn | Wound plaster with a fluid chamber |
| DE102004001594B4 (en) * | 2004-01-09 | 2006-09-21 | Bio-Gate Ag | Wound dressing and process for its preparation |
| NZ553254A (en) * | 2004-07-26 | 2009-10-30 | Kci Licensing Inc | Method for coating substrate with antimicrobial agent and product formed thereby |
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