A kind of medical dressing of antiseep anti
[technical field]
This utility model relates to a kind of medical dressing, relates in particular to a kind of medical dressing of antiseep anti.
[background technology]
At present, the medical dressing that is used to wrap up the health wound surface on the market is to be formed by stacking with gauze or non-woven fabrics that various fibers are made mostly.Medical dressing is protected the wound surface except wound surface being isolated from the outside, being used to, and also requires dressing to have very strong imbibition ability, can draw the liquid that wound surface oozes out, and makes wound surface keep dry and comfortable, reduces the risk of traumatic infection and promotes wound healing.But existing these dressing have following defective:
1) no antiseepage function.Gauze made from various fibers or non-woven fabrics are as liquid-adsorption layer, and the wound surface liquid of its absorption can overflow from dressing, and bleeds back to wound surface, pollute and infect.
2) adhesion wound surface.Because of liquid-adsorption layer directly contacts with wound surface, and liquid-adsorption layer is many makes with various fibers, easily and wound tissue bonding.
3) liquid absorption deficiency.Absorbency is generally 12g/g, is unsuitable for the nursing of big wound surface.
[summary of the invention]
Main purpose of the present utility model is exactly to provide a kind of medical dressing of antiseep anti in order to address the above problem, and the liquid that prevents wound surface oozes out and flows back to wound surface, simultaneously not with the wound surface adhesion.
Secondary objective of the present utility model just provides a kind of medical dressing of antiseep anti, and imbibition ability is strong, is applicable to the nursing of big wound surface.
For achieving the above object, the utility model proposes a kind of medical dressing of antiseep anti, comprise liquid-adsorption layer, a side surface that is used to press close to wound surface at liquid-adsorption layer is attached with and is used to prevent that liquid from flowing to the impervious barrier of wound surface from liquid-adsorption layer, and described impervious barrier is preferably the polymer membrane that is manufactured with through hole.
Described polymer membrane is a kind of in polypropylene type, polyethylene kind and the polyurethanes film, and every square metre of unit grammes per square metre of described polymer membrane is 5~30.
The pitch of holes in length and breadth of the through hole on the described polymer membrane is 0.4mm-0.6mm.
Through hole on the described polymer membrane is preferably infundibulate, and the big mouth of described funnel-shaped hole is positioned at the outside, is used for contacting with wound surface, and the osculum of described funnel-shaped hole is near liquid-adsorption layer.
Big mouthful aperture of described funnel-shaped hole is 0.2mm-0.4mm, and the aperture of osculum is 0.05mm-0.15mm.
Described liquid-adsorption layer is a water-absorption fiber.
Described water-absorption fiber is a kind of in natural fiber, functional fibre, chemical fibre and the composite fibre, and every square metre of unit grammes per square metre of described water-absorption fiber is 25~200.
Further improvement of the utility model is to be attached with watertight composition at described liquid-adsorption layer away from a side surface of wound surface.
Described watertight composition is the high polymer film, or the coating of siliceous or fluorine.
The beneficial effects of the utility model are: 1) film made from high molecular polymer at liquid-adsorption layer surface attachment one deck is as impervious barrier, the eleven punch 11 of going forward side by side is handled, because of high molecular polymer has not hydrophilic feature, under the effect of the imbibition power of liquid-adsorption layer, the secretions of wound and skin is drawn through the hole of " film ", because of its small aperture very little, about about 0.1mm,, both guaranteed the absorption of secretions in the one side of liquid-adsorption layer, prevented bleeding back of secretions again effectively, the assurance wound is dry and comfortable, promotes wound healing, and high molecular polymer can easily not be bonded in the wound tissue as fibre object simultaneously, the minimizing patient suffering is arranged, the effect of being convenient to change.2) liquid-adsorption layer adopts water-absorption fiber, the imbibition ability of water-absorption fiber is higher than the absorbent of Gauze or non-woven fabric plate, and because of the raising of its absorbent, also improved the anti-performance that bleeds back of liquid-adsorption layer, thereby further improved the absorbent and the anti-performance that bleeds back of dressing.3) increase one deck watertight composition at the outer surface of the liquid-adsorption layer surface of wound surface (promptly away from), can prevent that medicine part, secretions from overflowing, outside liquid immerses the cross infection to wound when also preventing bathing, this watertight composition also still has certain hole simultaneously, so can keep breathing freely, wet thoroughly, guarantee the breathing of skin.
Feature of the present utility model and advantage will be elaborated in conjunction with the accompanying drawings by embodiment.
[description of drawings]
Fig. 1 is the vertical section structure sketch map of one section dressing of a kind of embodiment of this utility model;
Fig. 2 is the vertical section structure sketch map of one section dressing of the another kind of embodiment of this utility model.
[specific embodiment]
As shown in Figure 1, the dressing of present embodiment comprises liquid-adsorption layer 3, impervious barrier 1 and watertight composition 4, and according to the mode of wrapping wound, impervious barrier 1 is the layer that directly is applied on the wound surface, is liquid-adsorption layer 3 above the impervious barrier 1, and the upper surface of liquid-adsorption layer 3 adheres to watertight composition 4.
Impervious barrier 1 is preferably the polymer membrane that is manufactured with through hole 2.Polymer membrane can be in polypropylene type, polyethylene kind and the polyurethanes film a kind of, every square metre of unit grammes per square metre of polymer membrane is 5~30.The pitch of holes in length and breadth of the through hole on the polymer membrane is 0.4mm-0.6mm, is preferably 0.5mm.Polymer membrane is molten by gluing, hot melt, flame, and is compound etc. the water-absorption surface of mode and liquid-adsorption layer 3, prevents from effectively that liquid in the liquid-adsorption layer 3 from overflowing to bleed back to wound surface.
Through hole 2 on the polymer membrane can be cylindrical hole, is preferably funnel shaped hole, and as shown in Figure 2, the big mouth of funnel-shaped hole is positioned at the outside, contacts with wound surface, and the aperture is 0.2mm-0.4mm, is preferably 0.3mm.The osculum of funnel-shaped hole is near liquid-adsorption layer, and the aperture is 0.05mm-0.15mm, is preferably 0.1mm.Big mouthful contacts with wound surface, and osculum contacts with the imbibition face of liquid-adsorption layer, helps the absorption of wound surface liquid, and osculum prevents that to the generation of the liquid in the liquid-adsorption layer barrier effect liquid from returning wound surface by orifice flow.
Liquid-adsorption layer can be materials such as cotton, synthetic fibers, is preferably water-absorption fiber, and water-absorption fiber is a kind of new material, comprises natural fiber, functional fibre, chemical fibre or composite fibre, and its square metre unit grammes per square metre is usually between 25~200.Water-absorption fiber mainly plays the absorbent that is higher than Gauze or non-woven fabric plate and the effect of many leakage performance.
Watertight composition is the high polymer film, or contains the coating of silicon or fluorine, is formed on the outer lateral side of liquid-adsorption layer by face coat mode or complex method.
In sum, this utility model is handled through surface waterproofing by the one side at liquid-adsorption layer, can prevent that medicine part, secretions from overflowing, and outside liquid immerses the cross infection to wound when also preventing bathing, keeps ventilative, saturating wet simultaneously, guarantees the breathing of skin; Another side keeps its good water absorption character, and adheres to one deck impervious barrier without water-proofing treatment, prevents that allow liquids from arriving wound surface.