CN100536806C - Wound dressing with acclimation element for swelling dressing - Google Patents

Wound dressing with acclimation element for swelling dressing Download PDF

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Publication number
CN100536806C
CN100536806C CN 200380110023 CN200380110023A CN100536806C CN 100536806 C CN100536806 C CN 100536806C CN 200380110023 CN200380110023 CN 200380110023 CN 200380110023 A CN200380110023 A CN 200380110023A CN 100536806 C CN100536806 C CN 100536806C
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absorbent core
portion
wound dressing
backing layer
layer
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CN 200380110023
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Chinese (zh)
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CN1756519A (en
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G·F·西古尔荣松
T·M·埃勒夫森
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Bsn医疗有限责任公司
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Priority to US60/482,775 priority
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Priority to US60/518,317 priority
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Abstract

一种伤口敷料,其包括吸收性核心和连接到其上的背衬层。 A wound dressing comprising an absorbent core and a backing layer connected thereto. 该背衬层限定至少一个与吸收性核心的远表面分离的顺应元件。 The compliant backing member defining at least one separate the distal surface of the absorbent core. 顺应元件包括至少一个相对于吸收性核心的远表面向外延伸的瘠状物。 Barren compliant element comprises at least one substance with respect to the distal surface of the absorbent core extending outwardly. 一种制造顺应元件以及将背衬层连接到吸收性核心的方法,其包括使用与真空和压缩空气相通的压板。 A method of manufacturing a compliant element and connected to the backing layer of the absorbent core, which comprises the use of compressed air and communicating with a vacuum platen.

Description

具有允许敷料膨胀的顺应元件的伤口敷料发明背景 Having a compliant element to allow expansion of the dressing of the wound dressing BACKGROUND OF THE INVENTION

1, 发明领域 1. Field of the Invention

本发明涉及一种伤口敷料,更特别是涉及具有改善的皮肤粘着性以及吸收能力的结构的伤口敷料,以及其产生方法。 The present invention relates to a wound dressing, and more particularly relates to a wound dressing having improved adhesion on the skin structure and absorption capacity, as well as generating method.

2. 相关技术的讨论 2. Discussion of Related Technology

历史上,使用各种来源的很多不同的材料通过采用一些类型的吸收材料吸收来自伤口处的伤口流体以及组织(在下文中称之为渗出物) 来处理伤口。 Historically, a number of different sources using a variety of materials (hereinafter referred to as exudate) for the treatment of wounds by using some type of absorbent material to absorb wound fluid and tissue from the wound. 最近几年,日益流行使用基于聚合物的伤口护理产品, 来控制伤口处的环境因素例如水蒸气、氧气渗透性、细菌不透过性以及吸收渗出物。 In recent years, the increasingly popular use of polymer-based wound care products, wound to control environmental factors such as water vapor, oxygen permeability, bacteria do not absorb exudates and permeability. 这些伤口护理产品被特制以满足特殊的需求包括与身体部分的顺应性(conformability )、选择性粘附到伤口层以及对围绕伤口处的皮肤的粘着性。 The wound care product is tailored to meet specific needs include compliance (conformability) of the body part, selective adhesion to the wound layer and the adhesion to the skin surrounding the wound.

最近,闭合敷料或保湿敷料在处理伤口,特别是褥疮和溃疡方面逐渐被接受。 Recently, moisturizing closing dressing or dressings have been gradually accepted in the treatment of wounds, particularly ulcers and bedsores. 本领域已知多种类型的结构可用于或作为闭合敷料,通常包括接收、吸收以及保留渗出物的成分。 Known in the art may be used for various types of structures or as a closed dressing, generally it includes receiving, absorbing and retention components of the exudate. 典型地,这些伤口护理产品包括聚合物泡沫材料、聚合物薄膜、颗粒以及纤维状聚合物、水凝胶以及水状胶体。 Typically, these wound care product comprising a polymer foam material, polymeric films, and fibrous polymer particles, hydrogels, and hydrocolloid. 具有上述至少一种成分的敷料通过提供潮湿环境、 并除去过量渗出物以及有毒成分来促进伤口愈合,并进一步作为屏障保护伤口免于继发细菌感染。 It said at least one component having a dressing by providing a moist environment, and removing the excess exudates and toxic ingredients to promote wound healing, and act as a barrier to protect the wound further from secondary bacterial infection. 虽然这些已知的闭合伤口敷料能有效地处理伤口,但是发现很多闭合敷料具有一些局限性或缺点。 Although these known closing the wound dressing to effectively treat the wound, but found that many closed dressing has some limitations or disadvantages.

在伤口护理方面,伤口敷料的一个主要的目的是增加、提高或是最大限度地利用敷料的吸收能力,从而减少或消除浸软,促进伤口的愈合过程。 In wound care, a wound dressing main purpose is to increase, enhance or maximize the absorption capacity of the dressing, to reduce or eliminate maceration and promote the wound healing process. 如果要保持伤口的小环境,头等重要的是控制渗出物。 If you want to keep the wound small environment, the first important thing is to control exudate. 不幸的是,发现很多伤口敷料除去了伤口产生的所有的渗出物,从而产生一个"干"伤口,这在伤口愈合过程中是不希望有的,或者发现这种伤口敷料不能充分地吸收或控制渗出物,从而导致渗出物汇集起来, 这就增加了细菌繁殖的危险以及导致感染。 Unfortunately, many of the wound dressing was found to remove all the exudate produced by the wound, thereby producing a "dry" wound, the wound healing process which is undesirable, or can not be found to sufficiently absorb wound dressing or control exudate, resulting in pooled exudate, which increases the risk of bacterial growth and lead to infection.

现有技术的很多伤口敷料包括具有吸收性能的吸收层。 Many prior art wound dressing comprising an absorbent layer absorbing properties. 典型地, 吸收层舍有亲水材料,该亲水材料能吸收渗出物并使伤口敷料在其位置保留几天时间.该吸收层可以含有非织造材料或含有水状胶体徵粒 Typically, the absorbent layer is rounded with a hydrophilic material, the hydrophilic material is capable of absorbing exudate and the wound dressing in place to retain a few days. The absorbent layer may contain non-woven material or contains a hydrocolloid particles characterized

的泡沫材料,例如美国专利4,373,519和6,566,576中描述的敷料,或亲水泡沫层,例如美国专利5,409,472、 5,782,787、 6,040,492、 6,051,747 以及6,486,378中描述的敷料. Foam material, e.g. U.S. Patent No. 4,373,519 and 6,566,576 described in the dressing, a foam or a hydrophilic layer, for example, U.S. Patent No. 5,409,472, 5,782,787, 6,040,492, 6,051,747 and 6,486,378 of dressing described.

虽然吸收层教料被设计成吸收伤口渗出物,但它们通常具有能吸收的渗出物的重有限的缺点.吸收性泡沫材料的最大吸收限度通常与它们在吸收液体前的几何大小直接相关.例如亲水泡沫材料只能扩大为原始大小的12-15%.另一缺点是由于差的液体保留性,已经发现一定量的渗出物被"挤出"吸收性泡沫材料敷料.渗出物从泡沫层被挤出,从而从敷料本身被挤出的可能性具有引起感染的危险,以及妨碍伤口愈合. Although the absorbent layer weight is limited teaching material designed to absorb wound exudate, but they generally can absorb exudates have drawbacks. The maximum absorption limit absorbent foam materials are generally directly related to their geometrical size before absorption liquid . such as hydrophilic foams expanded only 12-15% of the original size. another disadvantage is due to the difference in liquid retention, it has been found that a certain amount of exudate is "extruded" absorbent foam dressing exudative It was extruded from the foam layer, so that a risk due to the possibility of infection from the dressing itself is extruded, and interfere with wound healing.

已知的敷料具有的另一缺点是通过与伤口接触的吸收层吸收渗出物,导致使用的敷料的中央部分膨胀并推压伤口.持续的膨胀能引起皮肤粘附层与伤口区域外面的皮肤分离,特別是在伤口敷料的边界处,在此会产生"巻边"效应.伤口敷料的过度膨胀进一步导致渗出物从教料的外闺渗漏,从而为致病微生物的入侵提供通道,并进一步促使伤口处浸软. A further disadvantage of known dressings having the absorbing layer by contact with the wound exudate absorption, resulting in expansion of the central portion of the dressing used and pushes the wound was continued expansion can cause the skin outside the wound area and the skin adhesive layer separation, especially at the boundary of the wound dressing, this will produce a "side Volume" effect. overexpansion results in the wound dressing further exudate from leaking outside the Inner teaching material, thereby providing a passage for the invasion of pathogenic microorganisms, and further promote wound maceration.

传统上,提供有背衬层,该背衬层包括附着到吸收层以防止渗出物从敷料渗漏的不透液体薄膜.在吸收流体过程中产生困难,因为当吸收性核心膨胀时,背衬层必须容纳吸收层的膨胀而不导致敷料巻边.美国专利4,738,257中描述了一种试困解决该问趙的方法,该专利公开了由薄弹性板构成的背衬层,当吸收性核心膨胀时,它能够弯曲.然而巳经发现不透液体的塑料膜不能充分地伸展,以与吸收层的膨胀保持一致,结果阻碍吸收层膨胀的薄膜就在敷料的边缘产生上述的巻边.美国专利6,040,492提出了另一种解决方法,该专利公开一种伤口敷料,该敷料包括附着到吸收性泡沫材料核心的背衬层,并且背衬层包括多个褶皱,当泡沫材料核心膨胀时,褶皱基本上变平.虽然背衬层能容纳泡沫材料核心的膨胀,但该伤口敷料的流体吸收受到泡沫材料核心本身的膨胀性限 Conventionally, there is provided a backing layer, the backing layer comprises an attachment to the absorbent layer to prevent exudates. Difficulties arise from the liquid impervious film dressing fluid leakage in the absorption process, because when the absorbent core expands, the back expansion absorption layer lining must be accommodated without causing side Volume dressing. U.S. patent describes a method of sample solution trapped in the Q Zhao 4,738,257, which discloses a backing layer made of a thin elastic plate, when the absorbent core when inflated, it can be bent. However we found already started liquid impervious plastic film can not be sufficiently stretched, the absorbent layer to expand consistent results hinder the expansion-absorbing layer film described above is generated in the side edges of the dressing of the Volume. USA Patent No. 6,040,492 proposes another solution, which discloses a wound dressing which dressing comprises an absorbent foam material attached to the core of the backing layer, the backing layer and comprising a plurality of pleats, when the foam core expansion, wrinkled substantially flattened. Although the backing material to accommodate expansion of the foam core, but the wound dressing is expandable by fluid-absorbent foam core itself limited .因此,由于泡沫材料中心部有限的吸收能力,需要经常更换敷料. Therefore, due to the limited capacity of the foam material of the central absorbent portion, the dressing needs to be changed frequently.

理想的是,伤口敷料本质上必须是带粘性的,因此它可以附着到伤口处,并且是无毒以及只是引发最低限度的过敏反应.此外,伤口敷料应该具有防止细苗从周闺环堍进入伤口的能力,同时提供适宜的水分传输速率. Desirably, the wound dressing is adhesive must essentially, it may be attached to the wound, and is non-toxic and caused only minimal allergic reactions. Furthermore, the wound dressing should have prevented from entering the fine seedlings circumferential ring Gui Tu the ability of the wound, while providing appropriate moisture transmission rate.

然而,已经发现,很多已知的闭合敷料的缺点是只是依靠用于将敷料固定到皮肤上的压敏粘附层,例如具有高特异粘着性的丙烯酸癍胶.典型的,当从伤口上被除去时,只具有粘合刑的伤口敷料具有从伤口剝掉敷料的中央部分的趋势,因此可能损害愈合组织. However, it has been found that many of the disadvantages of the known dressings is closed to secure the dressing to rely only on the pressure-sensitive adhesive layer to the skin, for example, having a high specific adhesion Ban acrylic adhesive. Typically, when the wound from the is removed, only a sentence adhesive wound dressing has a tendency to peel a central portion of the dressing from the wound, and thus may damage healing tissue.

伤口敷料已经可以商购获得,该伤口敷料包括具有伤口接触表面的吸收性泡沫材料核心部,该伤口接触表面涂有一层硅氧烷凝胶.硅氧烷凝胶沿吸收性泡沫材料的部分孔壁随机排列,形成多个随机形成的錄珠.当没有固化的硅氣烷凝胶施加到泡沫材料核心部时,通过毛细管作用形成所述缝隙.该方法的一个缺点在于硅氣烷凝胶可以封闭一些孔,另一缺点在于这些孔是随机形成的,这可能导致局部区域抑制泡沫材料核心部吸收渗出物.虽然在一些应用中想要提供一种伤口敷料,在其选定的区域内具有更大浓度的缝昧,从而增加该区域对渗出物的吸收,但是该方法不适和这种形成预定困案的缝昧.此外,该方法的另一缺点在于硅氣烷层的表面粗糙度很大程度上取决于待涂袭的泡沫材料表面,在想要得到一种貼在皮肤上的光滑硅氣烷层的情况下,该方法不能得 The wound dressing has been commercially available, the wound dressing comprises an absorbent foam material core portion having a wound contacting surface of the wound contacting surface coated with a silicone gel. Silicone gel along a portion of the bore of the absorbent foam material wall randomly arranged to form a plurality of beads formed at random recorded. when there is no gas alkoxy cured silicone gel is applied to the foam core portion forming the slit by capillary action. a disadvantage of this method is that the silicone gel can alkoxy gas closing some of the apertures, wherein the apertures further disadvantage is randomly formed, which may result in a local region to suppress the foam core portion absorb exudate. While desirable to provide a wound dressing, in the region of their choice in some applications ignorant slit having a greater concentration, thereby increasing the absorption of the exudate region, but the method is not ignorant of slits are formed and this trapped predetermined case. Furthermore, another disadvantage of this method is that the surface of the silicon layer is roughened gas alkoxy depends largely on the foam surface to be coated of the passage, when it is desired to obtain a smooth silicon layer of one gas alkoxy attached to the skin, which can not be obtained 这种光滑的硅氣烷层. This smooth gas alkoxy silicon layer.

硅氧烷生产领域的发展已引导Reykavikjceland的Ossur hf以及 Developments in the field of silicone production has guided Ossur hf Reykavikjceland and

本发明的受让人生产出适于与皮肤接触的硅氣烷产品,该产品能提供极好的柔软、柔和的皮肤接触,并且可以包括独特的皮肤护理成分. 特別是,这种硅氧坑生产技术导致修复悬浮衬垫在改进的舒适度和援冲性方面的发展,使用Ossur hf所有的硅氣烷生产技术,它们具有极好的耐久性和舒适感.已经发现,使用Ossur hf的硅氧烷生产技术生产超薄、多孔的粘硅氣坑片材,可以生产一种对伤口部位具有优越的、温和粘着性的硅氣烷层,而不会因为单次或重复除去硅氣烷层而损害皮肤和伤口层. Assignee of the present invention to produce silicon suitable for contact with the skin alkoxy gas product, the product can provide an excellent soft, gentle skin contact, and may include a unique skin care ingredient. In particular, such silicone pit suspension led to the development of production technology to repair pad improved comfort and recovery aspects of the punch, the use of all silicon Ossur hf alkoxy gas production technology, they have excellent durability and comfort. It has been found, the silicon used Ossur hf alumoxane production technology to produce thin, porous silicon gas pit sticky sheet can be produced having superior mild adhesion layer on a silicon gas alkoxy wound site, and not because of a single layer or a silicon alkoxy repeated gas removed to the detriment of the skin and the wound bed.

尽管可以得到各种吸收伤口敷料,但仍需要和需求一种改进的伤口敷料,当伤口敷料更換时其能防止伤口损伤,提高伤口敷料的耐用性和使用寿命,解剖学上能顺应伤口并且具有增强的流体吸收、保留和去除特性.最重要的是,想要生产一种具有粘合层的伤口敷料,该粘合层没有已知粘合层的缺点,取而代之的是在提供优越的流体吸收的同时,能温和地粘着并从伤口处分离.此外需要和需求一种改进的形成所述改进的伤口敷料的方法,该方法简单而有效. Although a variety of absorbent wound dressings can be obtained, there remains a need and demand for an improved wound dressing, the wound when the wound dressing change which can prevent injuries, improve wound dressing durability and service life, and can conform to the wound having an anatomically enhanced fluid absorption, retention and removal properties. most importantly, wants to produce a wound dressing having an adhesive layer, the adhesive layer without the disadvantages of known adhesive layer, instead is to provide superior fluid-absorbent while gently adhered and separated from the wound. Further needs and requirements for an improved method of forming said improved wound dressing, which method is simple and effective.

发明概述 SUMMARY OF THE INVENTION

本发明涉及一种改进的伤口敷料,具有良好的吸收能力,包括增加流体吸收以及增强保留性能.在本发明的一个实施方案中,伤口敷料包括限定了相对的近表面和远表面的吸收性核心.吸收性核心的远表面限定了中心部分、边缘部分以及里于中心和边缘部分之间的中间部分.不透液体、能透过蒸汽的背衬层被连接到吸收性核心的远表面 The present invention relates to an improved wound dressing, having good absorption ability, comprising increasing the fluid absorption and retention properties enhanced. In one embodiment of the invention, the wound dressing comprising defining a proximal surface and opposed distal surface of the absorbent core the distal surface of the absorbent core defines a central portion, in an edge portion, and between the center and the edge portion of the intermediate portion. impervious to liquids, the absorbent core can be connected to the vapor permeable backing layer distal surface

上,并包括至少一个与吸收性核心的远表面分离的顺应元件(compliant element Upper, and comprising at least one compliant element separating the distal surface of the absorbent core (compliant element

在发明的另一实施方案中,順应元件包括与吸收性核心的外周同心的脊状物.顺应元件的瘠状物被构造成相对于吸收性核心的远表面向外延伸,即使伤口敷料已经吸收了最大量的水分.在发明的另一实施方案中,顺应元件包括限定顺应元件内和外边界的两个脊状物.不管伤口敷料的吸收程度,两个脊状物被构造成相对于吸收性核心的远表面向外延伸. In another embodiment of the invention, the compliant element comprising an absorbent core and an outer periphery concentric ridges. Barren outwardly extending fingers compliant element is configured with respect to the distal surface of the absorbent core, even though the wound dressing has absorb the maximum amount of water. in another embodiment of the invention, the compliant member comprises two ridges to conform to and define the outer boundary of the inner member. regardless of the degree of absorption of the wound dressing, two ridges are configured with respect to distal surface of the absorbent core extends outward.

在背衬层中结合顺应元件增强了对伤口敷料膨胀的适应.在发明的一实施方案中,吸收性核心含有吸水材料的不连续部分.在该实施方案中,順应元件通常被设置靠近伤口敷料的外周边缘,有效地用作连接,允许吸收材料的不连续部分从吸收性核心移动.当吸收性核心和吸收材料吸收一些水分,在背衬层的中心部分和吸收性核心之间限定出可膨胀的储液器.当吸收材料的不连续部分已经吸收一些渗出物时,形成该储液器,并且由于所述吸收材料的膨胀和扩大,导致背衬层的中心部分从吸收性核心的中心部分分开. Incorporated in the backing layer of the reinforcing element compliant expansion adapted wound dressing. In one embodiment of the invention, the absorbent core comprising absorbent material discontinuity. In this embodiment, the compliant element are disposed generally near the wound an outer peripheral edge of the dressing, as effectively connected, allow discrete portions of the absorbent material of the absorbent core from moving when the absorbent core and the absorbent material absorbs some of the moisture in the backing layer between the absorbent core and the central portion defining an expandable reservoir. when the discontinuous portions of the absorbent material have absorbed some of the exudates, the liquid reservoir is formed, and due to expansion and the expansion of the absorbent material, resulting from a central portion of the backing layer of the absorbent core separate central part.

提供本发明一种方法,用于制造本发明的伤口敷料的一种实施方案,包括具有近表面和远表面的吸收性核心,连接到吸收性核心上的不透液体、能透过蒸汽的背衬层.背衬层具有限定分离的顺应元件的部分,该部分从吸收性核心的远表面向外延伸.该方法包括以下步蘇: 将背衬层的边缘部分回定到吸收性核心的边缘部分上,位于其外周, 将背衬层的中心部分连接到吸收性核心的中心部分上,通过拉动顺应元件离开吸收性核心形成顺应元件. The present invention provides a process for producing an embodiment of the present invention a wound dressing comprising an absorbent core having a proximal surface and a distal surface, a liquid impervious connected to the absorbent core, vapor permeable backing part liner having a compliant backing member defining a separation of the portion extending from the distal surface of the absorbent core outwardly Su the method comprising the steps: the edge portion of the backing layer of the absorbent core back to the edge of a given an upper portion, its outer periphery, the central portion of the backing layer is connected to the central portion of the absorbent core, by pulling the element away from the absorbent core forming compliant compliant element.

本发明的方法采用了具有与顺应元件和背衬层的边缘和中心部分相应的预定形状的压板.该压板用于将背衬层固定到吸收性核心上, 并且包括限定背衬层的顺应元件的形状并选择性与真空相通的凹橫. The method of the present invention employ a platen having a predetermined shape corresponding to the compliant member and the backing layer and the edge of the central portion. The platen for the backing layer secured to the absorbent core, and includes a compliant backing member defining shape and communicating selectively with a concave cross-vacuo.

构造压板,以便在通过用与凹橫相通的真空将与顺应元件相应的背衬层的区域拉入凹橫而将背衬层的边缘和中心部分连接到吸收性核心之前,拉动背衬层靠到压板上.将其上带有背衬层的压板压靠到吸收性核心上.在适宜的温度下加热压板,从而将背衬层的边缘部分固定到吸收性核心上.接着当背衬层的边缘部分固定到吸收性核心上之后,通过从背衬层上除去真空,将压板从背衬层上移走. Configured platen, prior to use by the lateral recess communicating with the vacuum compliant element area corresponding to the backing layer and the pull-in recess transverse edges and a central portion connected to the backing layer of the absorbent core, the backing layer is pulled against onto the platen. with its upper platen is pressed against the backing layer to the absorbent core. heated platen at a suitable temperature, so that the edge portion of the backing layer is secured to the absorbent core. when the backing layer is then after the edge portion secured to the absorbent core, is removed by vacuum from the backing layer, the backing layer is removed from the platen.

通过以下对本发明的详细描迷、所附实施方案、附困以及权利要求,本发明的许多其它优势和特征将更加显而易见. Fans following detailed description of the invention, the appended embodiments, and appended claims trapped Many other advantages and features of the invention will become more apparent.

附困简述 Brief attached trapped

困l是本发明伤口敷料的一个实施方案的透視困; 困2是困i中的伤口敷料沿nn线的截面闺; L is a perspective view trapped embodiment of the present invention, the wound dressing trapped; 2 is a sectional trapped i Gui trapped in the wound dressing along line nn;

困3是本发明伤口款料的一个实施方案的透視困; 3 is a perspective trapped trapped under one embodiment of the present invention wound material;

困4是显示本发明端面层的一个实施方案的平面困; 4 is trapped display plane end surface of one embodiment of the present invention trapped layer;

困5是困2中的伤口教料的另一个实施方案的部分放大困; 5 is trapped in the part 2 wound teaching material trapped another embodiment of an enlarged trapped;

困6-8是显示困1-2的伤口敦料在伤口处逐渐膨胀的截面困; 6-8 is a 1-2 trapped trapped material wound London gradually expanding cross-section trapped in the wound;

困9是困8的伤口敷料的部分放大困; 9 is trapped trapped wound dressing partially enlarged trapped 8;

困IO是显示本发明的端面层的一个实施方案的平面困; IO is trapped display plane end surface of one embodiment of the present invention, the trapped layer;

困11是显示本发明的吸收性核心的插孔的一个实施方案的平面 11 is a plane trapped jack of an absorbent core of an embodiment of the present invention.

困J Sleepy J

困12是显示本发明的端面层的一个实施方案的平面困; 12 is trapped display plane end surface of one embodiment of the present invention, the trapped layer;

困13是显示本发明的接受器和端面层的另一个实施方案的正視 13 is a front view trapped another embodiment of the receptacle and the end face layer of the present invention.

闺; Gui;

困14是显示本发明用于将背衬层施加到吸收性核心上的压板的一个实施方案的截面田; 14 is a hardship for the backing layer of the present invention is applied to a field-section of the embodiment of an absorbent core on the platen;

困15-19是显示本发明用于将背衬层施加到吸收性核心上的装配的示意闺. 15-19 is a hardship for the backing layer of the present invention is applied to the assembly on a schematic Gui absorbent core.

优选实施方案的详细描述如困1和2中所示,本发明的伤口教料IO优逸包括多孔疏水、 皮肤粘附端面层12,吸收性核心14,以及不透液体、能渗透水分" 背衬层16.困1中描述的伤口敷料处于干燥的状态,基本上没有水分.如困2中更充分的举例说明,吸收性核心14限定了用来面向伤口表面w的近表面p,以及与近表面p相对、远离伤口表面的远表面d. 在基本构造中,敷料10包含固定到吸收性核心14的远表面p上的端面层12,以及附著到并密封至少部分吸收性核心14的远表面d的背衬层16. Detailed Description of Preferred Embodiments As shown in 1 and 2 storm, wound IO preferred material taught Yat invention comprises a porous hydrophobic end surface of the skin adhesive layer 12, the absorbent core 14, and a liquid impermeable, moisture permeable " trapped in the backing layer 16. the wound dressing 1 described in a dry state, substantially no moisture. as more fully trapped in illustration 2, the absorbent core 14 to define a proximal surface p w facing surface of the wound, and at least partially opposite surface of the p near, far away from the surface of the wound surface d. in the basic configuration, the dressing 10 comprises an absorbent core secured to the distal end surface of the upper surface of the p layer 12, 14, and attached to the absorbent core 14 and the sealing the backing layer 16 of the distal surface d.

在一个优选的实施方案中,吸收性核心14限定以预定困案设置的多个插孔18,其中插孔18被限定为一系列重复的圃柱形室.如困2所示,插孔18在吸收性核心14的远表面d上开口,向吸收性核心14延伸距离tp比吸收性核心的整个厚度t要短.插孔可以采取多种结构,可以为圃柱形,沿着吸收性核心的至少部分远表面橫向延伸, 或者采取下面将要讨论的其它可能的结构.多个插孔18含有吸收材料20的不连续部分,该吸收材料吸收伤口的渗出物并且在吸收该渗出物时从插孔18朝着背衬层16移动. In a preferred embodiment, the absorbent core 14 defines a plurality of jacks 18 disposed in a predetermined trapped case wherein jack 18 is defined as a series of repeating garden cylindrical chamber. As shown trapped 2, the receptacle 18 the absorbent core on the distal surface D of the opening 14, 14 extending to a distance shorter than the absorbent core of the absorbent core tp entire thickness t. jack can take a variety of configurations, and may be cylindrical garden, along the absorbent core a transverse surface extending at least partially away, or may take other structures will be discussed below. jack 18 comprising a plurality of discrete portions of absorbent material 20, the absorbent material absorbs wound exudate and absorbing the exudate 18 from the receptacle 16 is moved toward the backing layer.

如困2所述,吸收性核心14通常限定中心、中间以及边缘部分22、 23、 24.优选的,背衬层16被固定到吸收性核心14的边缘部分24 上,并沿其外周密封.边缘部分24优选包括靠近或沿其外周边缘限定的斜面28,其用于将插孔18的任何松散的吸收材料保留在敷料10 中.如下面将更全面的讨论,当敷料10处于干燥状态时,背衬层16 优选紧密地粘附到吸收性核心14的中心部分22上. The trapped in claim 2, the absorbent core 14 generally defines a central, middle and an edge portion 22, 23, 24. Preferably, the backing layer of the absorbent core 16 is fixed to the upper edge 14 of the portion 24, and a seal along its periphery. 24 preferably comprises an edge portion near or along the outer peripheral edge of the chamfer 28 defined, for which any loose absorbent material is retained in the receptacle 18 the dressing 10 as more fully discussed below, when the dressing 10 is in the dry state , backing layer 16 is preferably adhered closely to the central portion 14 of the absorbent core 22.

教料10的背衬层16优选包括置于吸收性核心14的中心和边缘部分22、 24之间的顺应元件26.顺应元件26通常与中心部分22同心,并包含部分背衬层16,该部分背衬层在敷料10处于干燥状态时, 不粘附到吸收性核心14上.优逸,顺应元件26包括至少一个同心脊状物.困2显示敷料10的顺应元件26只具有一个同心脊状物.困3 显示敷料10具有多个脊状物,其中内部和外部脊状物31、 32从吸收性核心14的远表面d向外延伸,并通常构成顺应元件26的内部和外部边界. Teaching material 16 of the backing layer 10 preferably comprises an absorbent core disposed in the center and the edge 14 between the compliant member portion 22, 24 26. The compliant portion 26 is generally concentric with the central member 22 and backing layer 16 comprises a portion, which part of the backing layer 10 when the dressing is in a dry state, does not adhere to the absorbent core 14. excellent Yi, compliant element 26 comprises at least one concentric ridge. trapped 2 shows the dressing 10 is compliant element 26 has a concentric ridge substance. 3 shows trapped dressing having a plurality of ridges 10, wherein the inner and outer ridges 31, 32 extending from the distal surface of the absorbent core outwardly d 14, and typically constitute inner and outer boundaries conform to the element 26.

应理解顺应元件可以采取各种结构.例如,可以将顺应元件定位在各种方向,例如脊状物在从一般与顺应元件边缘部分側面上的吸收性核心平行到一般与顺应元件的中心部分側面上的吸收性核心相平行的方向范闺内延伸. It is appreciated that the compliant element may take various structures. For example, the compliant element may be positioned in various directions, such as parallel ridges on a side portion of the absorbent core from the upper part of the side edge of the element to generally conform to the general center of the compliant member extending within the absorbent core on the parallel Fangxiang Fan Gui.

闺5中示意显示,顺应元件26并不限于一般要沿着吸收性核心的中间部分进行设置.顺应元件26可以被设置在伤口敷料的边缘或中心部分上,其中顺应元件26可以在伤口敷料的边缘或中心部分的至少一个上包括至少一个脊状物30或其区段.伤口敷料的这种适应,即在伤口敷料的边缘或中心部分的至少一个上的顺应元件,可增强背衬层相对于吸收性核心远表面的膨胀性以及延伸. Gui 5 schematically shows the compliant element 26 is not limited to be disposed generally along the intermediate portion of the absorbent core. Compliant member 26 may be disposed on an edge or central portion of the wound dressing, wherein the compliant member 26 may be a wound dressing an edge or central portion comprises at least one of the at least one ridge 30 or a segment thereof. such wound dressing adapted, i.e. at least one compliant element edge or central portion of the wound dressing, can enhance the backing layer opposite the absorbent core in the expandable distal surface and an extension.

端面层12优选固定到吸收性核心14的近表面p上.端面层12包括在将端面层12固定到吸收性核心14之前以一定困案预先形成的多个孔34.如困2和4中示意显示,所述多个孔34以预定的困案进行设里.多个孔34可以构造成与靠近或位于吸收性核心14的多个插孔18处的区域相应,从而将伤口处的渗出物传送到吸收性核心14.端面层12优选仅固定到吸收性核心14的近表面p上,以及优选未袭盖靠近近表面p限定的吸收性核心14的孔或洞壁.然而,可以理解,部分端面层可以填充沿着吸收性核心的近表面或吸收性核心的孔排列的不规則处,从而增强端面层向吸收性核心的固定. The end face layer 12 is preferably secured to the absorbent core 14 of the proximal surface P end face layer 12 comprises a plurality of apertures in the text before a certain difficulties previously formed layer 12 is fixed to the end face 14 of the absorbent core 34. The trapped 2 and 4 schematically show a plurality of holes 34 provided for the case of a predetermined trapped in. a plurality of holes 34 may be configured to correspond to a region of the absorbent core at or near the plurality of jacks 18 14, so that the wound exudate transport to the absorbent core at the end face 14. the layer 12 is preferably only affixed to the proximal surface of the absorbent core 14 p, and preferably the cover does not close the passage p defined near-surface holes or the absorbent core 14 of the wall However, it is understood that part of the end face layer may fill irregularities arranged along the surface of the absorbent core or the absorbent core near the hole, thereby enhancing the fixed face of the absorbent core layer.

虽然不希望被特殊的操作机理所限制,但当敷料施加到渗液的皮肤伤口上后,作为本发明的敷料10以困6至8所描述的方式发挥作用.可以理解在本发明的上下文中,对于伤口和伤口敷料,术语流体、水分以及渗出物可以互换使用.敷料10放置在伤口处w上,其端面层12朝向伤口层b.端面层12可以粘着到伤口处w周闺未受损伤的皮肤以及伤口层b上.通过进入吸收性核心14的渗出物的毛细管作用以及通过端面层12,敷料lO保持部分与伤口层b紧密并列. After While not wishing to be bound by a particular mechanism of operation, but when applied to the skin wound dressing exudate, the dressing of the invention as 10 trapped 6-8 described to play a role. In the context of the present invention will be appreciated that the for wound dressing and the wound, the term fluid, exudate, and moisture may be used interchangeably. dressing 10 is placed on the wound w, the end face 12 toward the wound layer B layer. layer 12 may be adhered to the end face of the circumferential wound w Gui uninjured skin and on the wound bed b. capillary action exudate 14 and 12, the wound dressing lO holding portion and into the layer (b) by the absorbent core closely juxtaposed layers through an end face.

如困6中所述,伤口层b渗出的流体通过孔34朝吸收性核心14移动,吸收材料20包含在吸收器18中,当施用到伤口处w持续一段时间后,所施用的敷料看上去如闺7中显示,具有在吸收性核心14的中心部分上延伸的稍徵增大的圃盖形储液器结构36.储液器36由已经从插孔18中吸收了期望量的渗出物的吸收材料20产生,其不连续部分膨胀并从插孔转移,从而导致背衬层膨胀.膨胀并充满渗出物的吸收材料20的不连续部分导致背衬层16以可预测的方式从吸收性核心14的远表面d分开,并向上扩展以进一步允许敷料10继续在伤口处w吸收和膨胀.另外,吸收性核心14在橫向和纵向上伸展或增大,吸收性核心14的范闺通常随著流体吸收的增加而增加。 6 as the storm, wound exudate fluid layer b through the aperture 34 of the absorbent core 14 moves toward the absorbent material 20 contained in the absorber 18, when applied to the wound dressing w after a period of time, to see administered Gui 7 show up as having an increased intrinsic po slightly extending on the central portion of the absorbent core 14 of the reservoir cap structure 36. the reservoir 36 has absorbed a desired amount of infiltration from the receptacle 18 the absorbent material 20 was produced, and it expands discontinuity transferred from the receptacle, thereby causing expansion of the backing layer. discontinuous partially expanded and filled with exudate absorbing material 20 causes the backing layer 16 in a manner predictable the absorbent core is separated from the distal surface D of 14, and the extension 10 to further allow the dressing to continue to swell and absorb w in the wound. further, the absorbent core 14 extends or increases in the lateral and longitudinal direction of the absorbent core 14 Fan Gui generally increases the fluid absorption increases.

当背衬层16沿着敷料10的边缘部分保持密封,成形储液器36,使得它被限定在背衬层16和吸收性核心14的远表面d之间,并沿着边缘部分24密封.储液器36允许膨胀的吸收材料20的不连续部分从插孔18中移动,大大增加了对来自伤口层b的流体的保留.由于吸收材料20的膨胀,通过允许背衬层16類外膨胀以提供背衬层16類外的弹性和膨胀,顺应元件26有效地用作一种用于背衬层16的乘性连接.如困8所示,敷料10几乎达到它的膨胀能力,背衬层16已经膨胀到它的最大限度.最显著的是,在膨胀的该发展阶段,由于提供了顺应元件26,该元件抵消了吸收性核心14和吸收材料20的膨胀和增大、以及背衬层16的扩展,敷料10的边緣部分24保持附着在伤口处w.此外应该注意的是,相对于邻近部分的背衬层16,脊状物30通常不完全展平,通常从吸收性核心14的远表面d并相对于由顺应元件26 When the backing layer 16 remains sealed along the edges of the dressing 10, forming the reservoir 36, so that it is defined between the absorbent core and a backing layer distal surface 16 d 14, and the sealing portion 24 along the edge. 36 discontinuous portion 20 allow for expansion of the absorbent material of the reservoir is moved from the insertion hole 18, greatly increasing the retention of fluid from the wound bed b. Since the expansion of the absorbent material 20, backing layer 16 by allowing expansion to an outer class providing the resilient backing layer 16 and an expanded outside the class, the compliant member 26 effectively used as a backing layer for connecting by 16. as shown trapped, dressing 10 almost reached its swelling power 8, the backing layer 16 has been expanded to its fullest extent. the most significant is that, at this stage of development of the expansion, the provision of the compliant element 26, the element of the absorbent core 14 and the offset is increased and the expansion of the absorbent material 20, and a backing layer extension 16, 24 of the edge portion 10 remains attached to the dressing at the wound w. Moreover, it should be noted that, with respect to the adjacent portion of the backing layer 16, ridges 30 generally is not completely flat, the absorbent core is generally from 14 the distal surface d and the compliant member 26 with respect to 定的背衬层16的扩展部分至少部分地向外延伸. Given extension portion extending outwardly of the backing layer 16 at least partially.

可以理解,优选的端面层12也具有适宜的弹性特征,以便当吸收性核心14橫向膨胀时,使其能伸展. It will be appreciated, the end surface of layer 12 preferably also has a suitable elastic characteristics, the absorbent core 14 so that when the lateral expansion, so that it can stretch.

当敷料10已经膨胀到最大容量时,被定义为充满了渗出物或完全饱和的敷料,則希望除去并替换敷料10.当处于饱和或完全充满渗出物的阶段,尽管吸收了过量的渗出缺,延着敷料10的边缘部分24的拐角通常保持附着在伤口处w,如田9所示例,这是由于端面层12提供了对闺绕伤口处w的皮肤足够的粘着力.通过观察与吸收性核心吸收的流体程度相关的敷料膨胀的程度以及通过观察吸收材料,能够从視觉上确定何时适合去除敷料. When the dressing 10 has been expanded to the maximum capacity, is defined as filled exudate or fully saturated dressings, it is desirable to remove and replace the dressing is saturated or 10. When fully charged exudates stage, although the absorption of excess retentate vacancy, Along the corner edge portion 24 of the dressing 10 is generally attached to the sample holder 9 wound w, such as fields, due to the end face of the Inner layer 12 provides the skin around the wound w, sufficient adhesion by observation the degree of dressing fluid correlated with the degree of expansion of the absorbent core and by the observation of the absorption of the absorbent material, can be adapted to determine when the dressing is removed from the visual.

如闺10示例,教料10可以包括设置在端面层12上的另外的粘合刑19.优选的,粘合剂19沉积在端面层12位于或靠近与吸收性核心14的边缘部分相应的部分上.压敏粘合剂19优选为饬口敷料领城已知的胶粘压敏硅氣烷或丙烯酸癍粘合剂. Example 10 The Gui, teach additional material 10 may include a penalty of 19. Preferably the adhesive layer 12 on the end face, the adhesive layer 19 deposited on the end face 12 at or near the respective edge portions of the absorbent core 14 on the part of pressure sensitive adhesive 19 is preferably ordered dressings collar silicon pressure sensitive adhesive known in the city gas alkoxy or acrylic adhesive plaques.

在优选的实施方案中,吸收性核心14优选含有适应人体表面并能吸收流体的亲水合成聚合物.希望吸收性核心能迅速地吸收渗出物从而增强本发明敷料的有效性,特别是将流体吸收到含有吸收材料的插孔中.除了吸收,想得到一种有效的毛细作用,也就是吸收性核心能迅速地引导液体离开吸收性核心的近表面到用于储存的更远区域(即含有吸收材料的不连续部分的插孔),从而将局部饱和降到袭低并使吸收性核心的效能达到最大.优选的吸收性核心由至少稍微亲水的柔性开孔泡沫材料构成.适 In a preferred embodiment, the absorbent core 14 preferably comprises a hydrophilic synthetic polymer and a surface adapted to absorb body fluids. The absorbent core can be desirable to rapidly absorb exudate the dressing to enhance the effectiveness of the present invention, in particular the absorbed fluid receptacle containing the absorbent material. in addition to the absorbent, want an efficient capillary action, i.e. the absorbent core can be rapidly directed away from the liquid near the surface of the absorbent core to the area for further storage (i.e., containing discrete portions of absorbent material jack), so that the local saturation of the absorbent core down and the passage of a low maximum performance. the absorbent core is preferably made of a flexible open cell foam material at least somewhat hydrophilic. suitable

宜的泡沫材料的开孔尺寸为30至700微米,优选开孔尺寸为50到300微米.开孔允许将流体和细胞碎片传送到泡沫材料中并在泡沫材料中传送,优选泡沫材料区域的开孔尺寸具有足够的大小,从而促进毛细管作用并促进流体传送. Opening size should foam 30 to 700 microns, opening size is preferably from 50 to 300 microns. Openings allow fluid transfer and cell debris in the foam conveying and foam material, the open area of ​​the foam material preferably a pore size sufficient size to facilitate capillary action and facilitate fluid transfer.

当被流体饱和时,吸收性核心可以膨胀原有大小的大约135%.当与本发明的表面层和背衬层相结合时,当充满渗出物时,吸收性核心仅可以膨胀到其干尺寸的大约110%. When the fluid is saturated, the absorbent core may be expanded to about 135% of the original size. When combined with the surface layer and the backing layer of the present invention, when filled with exudate, the absorbent core may be expanded only to the dry about 110% in size.

根据本发明的一个实施方案,在吸收性核心厚度的方向上吸收泡沫材料包含有开孔尺寸梯度,使得开孔尺寸在远表面和吸收性核心的方向上减小.由于开孔尺寸在以及靠近吸收性核心的近表面上较大,毛细管力更强,因此靠近吸收性核心的近表面排除流体并朝插孔移动该流体.另外,吸收性泡沫材料可以包括朝向插孔的开孔尺寸梯度,从而在吸收性泡沫材料中提供被设计成朝着插孔具有增强的毛细管力的局部区域,用于朝其引导流体. According to one embodiment of the present invention, the absorbent core in the direction of the thickness of the absorbent foam material comprises a hole size gradient, such that the opening size decreases in the direction of the distal surface and the absorbent core. Since the opening size and close in near the surface of the absorbent core over a larger, stronger capillary force, and therefore close to the proximal surface of the absorbent core and negative fluid movement toward the fluid receptacle. Additionally, absorbent foam material may comprise a gradient towards the opening size of the jack, It is designed to provide a receptacle toward a local region having enhanced capillary forces in the absorbent foam material, for directing fluid towards the.

泡沫材料可以由,例如聚氨瓣、纤维素、羧化丁二烯-苯乙烯橡胶、聚BS泡沫材料、亲水性环氧泡沫材料或聚丙烯酸酯构成.在优选的实施方案中,泡沫材料由亲水性聚氨酯泡沫材料构成,例如由ReynelInc.(Boothbay,ME)生产的产品标号为L00S62-B的聚氨敏泡沫材料.由于上迷泡沫材料本身是亲水的,此外考虑到含有吸收材料的插孔的应用,在优选的实施方案中不需要处理该泡沫材料以使其更亲水. It may be formed of a foam material, for example polyurethane flap, cellulose, carboxylated butadiene - styrene rubber, BS foams, hydrophilic epoxy foams or polyacrylate constitute a preferred embodiment, the foam material. composed of hydrophilic polyurethane foams, for example ReynelInc. (Boothbay, ME) products designated sensitive polyurethane foam L00S62-B Since the above-foamed material itself is hydrophilic, in addition to consideration of absorbent material comprising jack applications, in a preferred embodiment does not need to process the foam to make it more hydrophilic.

在另一实施方案中,如杲需要,可以对泡沫材料进行处理使其更亲水,从而増强渗出物在泡沫材料中更迅速凝结的趋势,而仅达到泡沫材料不能太亲水以致泡沫材料的亲水性阻碍渗出物传送到吸收性材料中的程度.在该实施方案中,可以设计吸收性泡沫材料亲水性的水平,使得表面张力最小,从而允许流体容易进入泡沫材料孔.当伤口处保持相对高的湿度的同时,流体能这样保留在吸收泡沫材料中. In another embodiment, Gao as desired, can be treated to make it more hydrophilic foam materials, such strong enlargement of exudates more rapidly in the foam tendency to coagulation, but only to reach a foam material that can not be too hydrophilic foam hydrophilic material transferred to the obstruction exudate extent of the absorbent material. in this embodiment, the level may be designed hydrophilic absorbent foam material, such that the minimum surface tension, allowing fluid to readily enter the foam pores. when the wound while maintaining a relatively high humidity, so that the fluid can be retained in the absorbent foam material.

可以理解,吸收性核心不限于由泡沫材料构成.在另一实施方案中,吸收性核心可以是使用本领域技术人员可得到的已知材料通过很多方法生产的多孔织造或非织造材料.例如,吸收性核心可以作为一种由非常短的纤维素纤维以随机或非随机排列构成的宽大、松散成形的织物,纤维素薄片垫,或聚合物原纤維基质而存在. 13吸收性核心的厚度为0.5至20mm,优选为3mm至5mm. It will be appreciated, is not limited to the absorbent core consists of a foam material. In another embodiment, the absorbent core may be obtained using art known materials in the art many ways of producing a porous woven or nonwoven material. For example, the absorbent core may be made as a very short cellulose fibers are arranged in a large non-random configuration, forming a loose fabric, a sheet of cellulose mat or matrix of fibrillated polymer is present. the thickness of the absorbent core 13 0.5 to 20mm, preferably from 3mm to 5mm.

吸收性核心可以包括在其中形成的一排插孔,并可以以任何适宜的预先选择的困案进行限定,其可含有期望体积或数量的吸收材料的不连续部分,同时保持适合于本发明教料的足够的强度和弹性.在田l显示的优选实施方案中,插孔18的困案是一种网格结构.优选,所述插孔具有均匀的、预先确定的形状和大小,并延伸橫穿吸收性核心的远表面d.在该实施方案中,以矩形田案定位插孔,插孔之间通常间隔5mm (从每个插孔的中心轴測量).通常每个插孔的深度为4-5mm,距离端面层至少0.5mm.在该实施方案中,该田案被修改成在 The absorbent core may comprise a row of sockets formed therein, and may be defined in any suitable preselected trapped case, which may contain a desired volume or amount of discontinuity of the absorbent material while maintaining suitable for the teachings of the present invention sufficient strength and elastic material. in the preferred embodiment shown in field l, stranded receptacle case 18 is a grid structure. preferably, the receptacle having a uniform, predetermined shape and size, and extending the absorbent core of the distal transverse surface d. in this embodiment, the case of a rectangular field positioning socket, typically 5mm interval (measured from the center axis of each insertion hole) between the jack. the depth of each jack is usually It is 4-5mm, from the end surface of the layer is at least 0.5mm. in this embodiment, the case was modified in the field

敷料的特定区域比其它区域包括更多的插孔. Specific area of ​​the dressing comprises more than other areas of the jack.

困11显示的伤口敷料的一个实施方案中,吸收性核心14的中心部分比敷料10边缘部分24附近具有更高密度的插孔18.吸收性核心 One embodiment of the wound dressing 11 is shown trapped in the central portion of the absorbent core 14 has a higher density than the receptacle 18. The absorbent core 10 near the edge portion of the dressing 24

的任何特定区域的插孔的数量取决于局部会有更大量的流体的可察觉区域,例如在中心部分,以使流体吸收最大化,此外限制在吸收性核心的特定区域内,例如边缘部分吸收流体. Any number of jacks depending on the specific region will be a greater amount of detectable partial region of the fluid, for example, in the center portion, in order to maximize the absorption of fluid, in addition to limiting the absorbent core in a specific area, for example, an edge portion of the absorbent fluid.

如困2所示,将插孔18设置成在吸收性核心14的远表面上开口, As storm 2, the jack 18 is provided to open on the distal surface of the absorbent core 14,

并向整个厚度延伸一定距离.在优选的实施方案中,插孔延伸距离^比吸收性核心18的整个厚度t要短,优选插孔延伸的距离为吸收性核心14的总厚度的70%-卯%.然而可以理解,在伤口敷料的一个实施方案中,插孔可以延伸穿过吸收性核心的整个厚度. And extends a distance the entire thickness in a preferred embodiment, the receptacle extending from ^ t is shorter than the entire thickness of the absorbent core 18, preferably from 70% receptacle extending the total thickness of the absorbent core 14. - % d. However, it is understood that, in one embodiment of the wound dressing, the receptacle may extend through the entire thickness of the absorbent core.

在伤口敷料的另一实施方案中,插孔18可以被设置成,如困13所示,根据它们的位置以及局部存在的来自伤口处的流体渗出物,向吸收性核心14的厚度延伸不同的距离.在该实施方案中,更靠近敷料10中心的插孔18向吸收性核心14的厚度延伸得更深,而更靠近吸收性核心边缘24的插孔18比中心部分22的插孔18向吸收性核心14的厚度延伸的距离要浅.由此更深的插孔18比更浅的插孔18含有更多的吸收材料20,从而提供更大的局部吸收区域. In another embodiment of the wound dressing, the receptacle 18 may be provided, as shown, depending on their position and the localized fluid exudate from the wound, extend to different thickness of the absorbent core 14 trapped 13 distance. in this embodiment, the closer to the center of the dressing 10 extend deeper receptacle 18 in the thickness of the absorbent core 14, and the absorbent core nearer the edge 24 of the receptacle 18 than to the center portion 22 of the receptacle 18 the thickness of the absorbent core 14 extending from the shallow to thereby deeper than the insertion hole 18 of the lighter receptacle 18 to contain more absorbent material 20, thereby providing greater local absorption region.

由于优选插孔只是部分延伸至吸收性核心的总厚度,因此将通过吸收材料传送并吸收渗出物.这种结果使没有插孔的吸收性核心的近側面处于理想的潮湿环境,渗出物不会过量饱和,从而允许敷料在伤口处保持更长的时间. Since the insertion hole preferably extending only partially to a total thickness of the absorbent core, therefore. Such is not the result that the proximal face of the absorbent core insertion hole by the absorbent material conveying and absorb exudate in an ideal moist environment, exudate not excess saturated, thereby allowing the wound dressing is maintained for a longer time.

在图1和2显示的优选实施方案中,每个插孔18的形状都是均一的,通常为圃柱形.至少部分逸择插孔的形状,使容纳的吸收材料的不连续部分达到最大,并且当通过流体而膨胀时能促进其移动.插 1 and 2 in the preferred embodiment shown in the figures, the shape of each insertion hole 18 is uniform, typically at least partially select jack Yi shape, the absorbent material contained in the discontinuous portion of the maximum cylindrical garden and when the expanded fluid to promote its movement. interposed

孔不限于圃柱形结构;插孔可以采用的形状为锥体、沟槽、半球、圃锥体、块状以及截顶变体及其组合.此外,插孔可以包括从其开口延伸至其基底部分的锥形,使得插孔开口附近的宽度比基底部分大.这种结构能有利于膨胀的、充满水分的吸收材料的不连续部分从插孔中移动,使得它们能更自由地从插孔中移动.另一选择,插孔可以沿着敷料远表面的橫向以随机闺案进行设置. Po hole is not limited to a cylindrical structure; shape may be employed as a receptacle cone, trenches, hemispheres, cones po, bulk and truncated variants, and combinations thereof In addition, the receptacle may include an opening extending therefrom to its tapered base portion, such that the width of the receptacle near the opening is larger than the base portion. this structure can facilitate the expanded, discrete portions of absorbent material from the receptacle in a moisture-laden movement, so that they can more freely from the receptacle mobile. Alternatively, the jack may be disposed along the lateral surface of the dressing away in a random pattern Gui.

在吸收性核心的一个实施方案中,插孔可以含有多个至少部分沿吸收性核心的远側面橫向延伸的沟橫.在该实施方案中,沟栅具有齿状或波浪状橫截面轮廓.该实施方案在这样一种伤口教料中是有用的,其中吸收性核心太薄而不能包括具有例如前述的圃柱形插孔形状的插孔. In one embodiment of the absorbent core embodiment, the receptacle may contain a plurality of lateral grooves at least in part along the distal side of the absorbent core extending transversely. In this embodiment, the gate groove having a tooth-like or wave-shaped cross-sectional profile. The in such an embodiment the compound is useful teachings wound, wherein the absorbent core comprises a receptacle having too thin of the cylindrical receptacle shape such as a garden.

每个插孔的尺寸可以是任何适宜的尺寸,该尺寸能容纳适宜量的能充分吸收伤口处的渗出物的吸收材料.通常,插孔的尺寸为大约500至5,000徵米,优选横截面为大约1000O000稞米(独立的高度和宽度尺寸).呈优选困案的插孔具有500至5,000樣米重复的距离,优选为大约1000-4500橄米,该重复距离被定义为一个插孔到另一插孔、中心轴到中心轴的距离. The size of each receptacle may be any suitable size, which can accommodate a suitable amount of absorbent material can sufficiently absorb wound exudate Typically, receptacle size of about 500 to 5,000 meters sign, preferably a cross-section m is from about 1000O000 wheat (independently height and width dimensions). trapped case was preferably 500 to 5,000 having a jack-like repeat distance meters, preferably about 1000-4500 meters olive, the repeat distance is defined as a jack to further jack, from the central axis to the central axis.

虽然在优选的实施方案中,插孔在穿过伤口敷料的橫向上具有相同的体积,但取决于在吸收性核心远表面上的开口位置,插孔可以具有变化的体积,如与具有可变深度的插孔相关的实施方案中,位于或靠近吸收性核心的中心部分的插孔与靠近吸收性核心的边缘部分的插孔相比,具有更大的体积容童.由此具有可变体积的插孔同样含有可变体积重的吸收材料的不连续部分. Although in the preferred embodiment, the receptacle has a volume in the same transversely through the wound dressing, but depending on the opening position of the absorbent core on the distal surface of the insertion hole may have a volume change, such as a variable and having jack depth related embodiment, the receptacle compared with the receptacle portion of the absorbent core close to the edge of the central portion is located at or near an absorbent core, having a greater volume capacity of the child. thus having a variable volume the receptacle also contains a discontinuous portion of the variable volume weight absorbent material.

本发明敷料中使用的吸收材料优选舍有超吸收性聚合《粒、薄片或粉末,它们暴露于水会膨胀并通过吸收大量的水形成水合凝胶(水凝胶).这里将超吸收刑被限定为显示出能吸收大量液体能力的材料,即,每份能吸收超过10至15份液体.这些超吸收性材料通常分成三类,也就是淀粉接枝的共聚物,交联的羧曱基纤维素衍生物以及改性的亲水聚丙烯酸酯.这种吸收性聚合物的例子为水解的淀粉-丙烯猜接枝共聚物、中和的淀粉-丙烯酸接枝共聚物、惠化的丙烯酸BS-乙烯基醋酸酯共聚物、水解的丙烯騎共聚物或丙烯酰胺共聚物,改性交联聚乙烯醉、中和的自交联聚丙烯酸、交联聚丙蜂酸盐、羧化纤维素以及 Absorbing material is preferably used in homes dressing of the invention are superabsorbent polymer "tablets, powders or flakes, they are exposed to water will swell and form a hydrated gel (hydrogel) by absorbing large amounts of water. Penalty superabsorbent here is It is defined as a material that exhibits the ability to absorb large quantities of liquid, i.e., each able to absorb more than 10 to 15 parts of liquid. these superabsorbent materials generally fall into three classes, namely starch graft copolymers, crosslinked carboxymethyl group Yue cellulose derivatives and modified hydrophilic polyacrylates examples of such absorbent polymers are hydrolyzed starch - guess propylene graft copolymer, neutralized starch - acrylic acid graft copolymers, acrylic benefits of BS - vinyl acetate copolymers, propylene copolymers or hydrolyzed ride acrylamide copolymers, modified crosslinked polyvinyl drunk, neutralized self-crosslinking polyacrylic acids, crosslinked polyacrylic acid salt bee, carboxylated cellulose, and

中和的交联异丁烯-马来肝共聚物.超吸收性粒状亲水聚合物也在美国 Neutralized crosslinked isobutylene - maleic copolymers liver superabsorbent particulate hydrophilic polymers also U.S.

专利No.4,102,340中进行详细描述.该专利公开了吸收材料例如交联聚丙烯酰胺.优选在本发明敷料中使用的超吸收性徵粒优选由交联聚丙烯酸构成. No.4,102,340 is described in detail in the patent. This patent discloses an absorbent material such as crosslinked polyacrylamides. Dressing preferably used in the present invention, the superabsorbent particles preferably consists of intrinsic crosslinked polyacrylic acid.

超吸收性徵粒可以商购得到,例如淀粉接枝聚丙烯酸酯水凝胶粉末可以从Porfamoutli, VA的Hoechst-Celanese得到.其它超吸收性微粒以商标SANWET (由Sanyo Kasei Kogyo Kabushiki Kaisha提供),SUMIKA GEL(由Sumitomo Kagaku Kabushiki Kaisha提供,其为球状聚合乳液,而非聚合的研磨顆粒的溶液刑),和FAVOR (由德国Dusseldorf的Dugussa AG生产)进行出售• The superabsorbent particles can be obtained commercially sign, for example starch graft polyacrylate hydrogel powder may, VA is obtained from Hoechst-Celanese Porfamoutli. Other superabsorbent particles under the trademark SANWET (supplied by Sanyo Kasei Kogyo Kabushiki Kaisha), SUMIKA GEL (supplied by Sumitomo Kagaku Kabushiki Kaisha, emulsion polymerization is a spherical, rather than solution polymerization punishment abrasive particles), FAVOR and (produced by Dugussa AG of Dusseldorf, Germany) for sale •

超吸收性徵粒优选为顆粒或薄片的形状,以提供更大有效表面积的水状胶体.干燥后典型的超吸收性微粒的尺寸是1到iooo徵米.优选吸收性徵粒的粒径为100到卯o微米.这些徵粒在伤口环境中不溶解,吸收能力大于每克干MO.S水. Characterized superabsorbent particles is preferably in the shape of particles or flakes, to provide a larger effective surface area of ​​the hydrocolloid. A typical size of the dried particles are superabsorbent 1 iooo m to sign. Particle size is preferably particles of absorbent characterized d o to 100 microns. these particles do not dissolve in the wound intrinsic environment, the absorption capacity per gram of dry MO.S greater than water.

在另一实施方案中,吸收性材料为与水接触会膨胀的亲水凝胶.亲水凝胶通常不具有多孔或孔咪状内部结构,并且是固体或半闺体形状.亲水凝胶被解释为意指水状胶体、水凝胶及其组合,只要该材料 In another embodiment, the absorbent material is in contact with water will swell a hydrophilic gel. The hydrophilic gel typically does not have a porous or hole-like internal structure of the microphone, and solid or semi-Gui shape. Hydrophilic be construed is meant a hydrocolloid, hydrogel, and combinations thereof, so long as the material

是生理上容许的和临床上可以接受的.授予Stickds等的美国6,S66,S75中描迷了适宜的亲水凝肢,这些凝胶是可以商购得到的. Is physiologically acceptable and clinically acceptable. Stickds et granted U.S. 6, S66, S75 described in C. Suitable hydrogel lost limbs, these gels can be commercially available.

在伤口敷料的另一实施方案中,吸收性核心可以包括多个嵌入吸收性核心内的吸收材料的不连续部分.该吸收材料的不连续部分可以是不连续的超吸收性聚合物徵粒、薄片或粉末,它们自由沉积在吸收性核心中,使得它们可以在吸收性核心内移动,优选朝向其远表面移动.而在伤口敷料的另一实施方案中,吸收性核心包括嵌入其中的吸收材料以及含有吸收刑材料的不连续部分的插孔. In another embodiment of the wound dressing, the absorbent core may comprise a plurality of discrete portions of the absorbent core of the absorbent material within the insert. The discontinuous portion of the absorbent material may be discontinuous superabsorbent polymer particles sign, flake or powder, which is deposited freely in the absorbent core, so that they can move in the absorbent core, preferably moving towards its distal surface. in yet another embodiment of the wound dressing, the absorbent core comprises absorbent material embedded therein and a receptacle containing discrete portions of the absorbent material punishment.

总之,在迄今讨论的每个吸收性核心的实施方案中,值得注意的是,在靠近或位于近部分的吸收性核心上,流体吸收最小化,通过插孔内或之外的吸收材料的吸收,流体吸收袭大化.这种方法与背衬层的结构相结合使敷料能吸收的流体重最大化,此外由于流体不与皮肤相接触,从而能允许病人较长时间佩带.背衬层可以在本发明敷料的所有实施方案中存在.优选背衬层适合动物(包括人)的解剖学表面,不能透过液体,而能透过蒸汽.如上面讨论的,背衬层与吸收性核心相结合,其可被构造成当教料处于膨胀、充满湿气的状态时,在它们之间限定了储液器.虽然背衬层不允许液体或渗出物通过,但吸收的渗出物中的水分以蒸汽形式穿过背衬层进入空气. In summary, in each embodiment of the absorbent core discussed so far, it is worth noting that the absorbent core near or at the portion near the fluid minimize absorption, the absorption material outside through the inner receptacle or the fluid passage maximize absorption. in this way the backing layer in combination with the structure of the dressing can absorb to maximize the flow of body weight, in addition since the fluid is not in contact with the skin, which can allow the patient to wear a long time. the backing layer may in all embodiments of the present invention, the dressing. suitable backing layer is preferably an animal (including human) anatomical surfaces, impermeable to liquid and permeable to vapor., and the backing layer of the absorbent core, as discussed above with respect binding, it may be configured such that when the material taught in the expanded state, full of moisture, the defining therebetween a reservoir. Although not allow liquid to the backing layer through or exudates, but the absorption of exudate moisture through the backing layer in a vapor form into the air.

背衬层的优选实施方案为薄聚合弹性或挠性薄膜涂层,提供了细菌屏陣,由能透过水蒸汽的柔软弹性体材料形成.该薄膜是连续的, 没有孔或洞横貫薄膜层.这种类型的薄膜是已知的,通常是亲水聚合物材料,水蒸气能够扩散穿过该薄腹. Preferred embodiment the backing layer is a thin polymeric elastic or flexible film coating providing a bacterial screen array, formed from a flexible elastomeric material can be permeable to water vapor. The film is continuous, without holes or holes running through the thin film layer this type of film are known, generally hydrophilic polymeric material, water vapor can diffuse through the thin web.

背衬层结合到吸收性核心的近表面上,在优选的实施方案中,背衬层只结合到吸收性核心的远表面上,没有穿透其中的任何孔、洞或 Bonded to the backing layer near the surface of the absorbent core, in a preferred embodiment, the backing layer bonded to the absorbent core only far surface, without penetrating any apertures therein, holes, or

空腔.薄獲的厚度通常为15至45微米,优选厚度为大约30徵米. 背衬层可以包含聚氨SI,例如从InteliCoat Technologies(South Hadley, MA)可得到的、产品标号为INSPIRE的聚氨酯薄膜,弹性聚酯,聚氨翁和聚豳的混合物,聚氣乙烯以及聚酸-酰胺嵌段共聚物. 在本发明中优选使用的背衬层为聚氨酯薄膜,因为它显示出回弹性特征,这允许薄膜具有良好的适应性,此外具有很高程度的伸展性. Cavity. Eligible thin thickness is usually 15 to 45 microns, preferably a thickness of about 30 m sign. Urethane backing the SI may comprise, for example, from InteliCoat Technologies (South Hadley, MA) is obtained, the product designations as INSPIRE the mixture of polyurethane films, elastomeric polyester, polyurethane and polyethylene Weng Bin, and polyethylene and ethylene gas polyacid - amide block copolymers in the backing layer of the present invention, preferably used is a polyurethane film, since it exhibits resiliency features this allows the film has good adaptability, in addition to having a high degree of extensibility.

优选本发明的背衬层至少是半透明的,更优选为足够透明,从而使得能通过敷料能观察到貼有敷料的伤口处.不必除去敷料而通过观察来评价伤口及其愈合是有利的,从而能进免不必要的对敷料的处理以及避免将伤口暴露到环境中,这减少了污染的可能性. The backing layer of the present invention is preferably at least translucent and more preferably sufficiently transparent so that the dressing can be observed through the wound dressing affixed. Without removing the dressing and the wound healing is evaluated by observing advantageous, so that it can enter the dressing to avoid unnecessary processing and to avoid exposure of the wound to the environment, which reduces the possibility of contamination.

适宜的连续的适应性背衬层使背衬层在38TC时只具有1500至14600g/m2/24hr的水蒸汽传输速率(MVTR),优选为2500至2700 g/m2/24hr.背衬层厚度优选为10到1000微米,更优选为100到500 微米.本发明的端面层优选为结合到吸收性核心的近表面上的不透液体和水分的疏水层.在优选的实施方案中,端面层是交联的硅氣烷弹性体凝胶,例如,NuSil Technology(Carpenteria, CA)生产的、产品标号为MED-6340的交联硅氣烷(聚二甲基珪氣坑凝胶).端面层优选具有0.05mm至0.5mm的厚度,更优选为O,lmm.敷料对伤口的适应性有些取决于组分的厚度,从而当款料贴到身体部分上,即使表面被移动它能适应该表面.当表面弯曲接着又回到没有弯曲的位置当表面返回其没有弯曲的状态时,端面层具有足够的回弹性能连续适应表面. Suitable continuous adaptability so that the backing layer backing layer with only water vapor transmission rate of from 1500 to 14600g / m2 / 24hr of (the MVTR) when at 38TC, preferably 2500 to 2700 g / m2 / 24hr. The thickness of the backing layer is preferably 10 to 1000 microns, more preferably from 100 to 500 microns. preferably the end face layer of the present invention is incorporated into a liquid-impermeable and moisture near the surface of the absorbent core hydrophobic layer. in a preferred embodiment, the end faces layer is a crosslinked silicone elastomer gels gas alkoxy, e.g., NuSil Technology (Carpenteria, CA) production, product designations as MED-6340 crosslinked silicone alkoxy gas (gas pit dimethicone Gui gel) end facing layer preferably has a thickness of 0.05mm to 0.5mm, more preferably O, lmm. adaptability of the wound dressing depends on the thickness of some component, such that when the material section attached to the body part, even if the surface is moved can adapt the surface. when the surface is then bent back to a position not bent when the surface does not return to its bent state, the end face layer has sufficient resiliency to adapt to the performance of a continuous surface.

硅氣烷端面层对于依靠胶型粘合剂将款料回定到伤口上的伤口敷料具有显著的益处.特别是,粘性硅氣烷凝胶能提供优越的不粘附到伤口上、但对周围皮肤非常粘的涂层.此外,这种凝胶完全固定,不受热或身体渗出物的影响.这意味者即使它们已经在适当位置保持相当长的时期之后,例如几天,根据本发明的教料也能保持它们的非粘着特性. Alkoxy end surface silicon layer with respect to the gas-sensitive adhesive glue will depend on the material under a given back to the wound dressing over the wound with a significant benefit. In particular, tacky silicone gels provide excellent gas alkoxy do not adhere to the wound, but Furthermore, the gel coating is completely fixed to the surrounding skin is very viscous, the influence from heat or body exudates object. this means that they are even after a long period has been held in place, for example a few days, according to the present teach invention can also be expected to maintain their non-tack properties.

硅氣烷凝胶层温和地粘着到周闺皮肤上,由于它本质上触摸柔软并部分流入皮肤中的徵小空孔和缝隙中,从而在伤口处产生大的接触面积.结杲,与已知的包括具有胶的粘附层的敷料相比,需要更小的粘着力将碰氣烷层固定到伤口处.由于硅氣坑层更充分地分散其粘着力,所以当从伤口处除去敷料时,其剥离强度不会剩去表皮细胞.闳此可以再次施用教料而不会损伤伤口处的皮肤和伤口.此外,由于是疏水性的,所以硅氣烷层能防止水分在所迷层下聚积,此外由于吸收性核心的毛细管力将渗出物引入教料,这使得能将教料升高离开皮肤,而不会使伤口敷料的使用者产生痛苦. Gas alkoxy silicone gel layer gently adhere to the skin of the Inner circumference, essentially because of its soft touch and partially flows into the small pores and crevices intrinsic skin, resulting in a large contact area at the wound. Junction Gao, and has compared to known adhesive dressing comprising an adhesive layer, the adhesion requires less air chloride layer secured to touch the wound. Since the silicon layer is more pit gas which adhesive force sufficiently dispersed, so when removing the dressing from the wound , the peel strength is not left to the epidermal cells. this can be administered Hong teaches again without material wound at the wound and skin damage. in addition, because it is hydrophobic, the silicon layer can be prevented alkoxy gas in the water layer fans under accumulation, Furthermore, since the absorbent core is introduced capillary force exudates teaching material, which makes it possible to increase teaching material away from the skin without causing pain to produce the wound dressing user.

用作本发明敷料中的端面层的硅氣坑优选具有小于1的Shore A 硬度,最优逸具有不可測得的ShoreA硬度. As a transverse covering of the present invention preferably has a silicon pit gas Shore A hardness of less than 1, and most undetectable Yi having a ShoreA hardness.

当通过交联两种或多种硅氣烷的混合物形成硅氣坑时,各种组分的分子量以及反应基团取代的程度可以是不同的.这允许仅仅通过改变所迷组分的比例形成具有不同物理性质的凝胶. When a pit is formed by a silicon gas mixture of cross-linking of two or more alkoxy silicon gas, the molecular weight and the degree of substitution of the reactive groups of the various components may be different. This allows the fan components ratio only by changing the formation gels having different physical properties.

复合材料端面层也可以包括混合到硅氣烷弹性中的一种或几种皮肤处理刑,例如凡士林油以及,荟.在优选的实施方案中,复合材料弹性层的最高达20重量%,优选为11.9重量%为凡士林油,并且最高达3重量%,优选0.1重量%为笫二皮肤处理剂例如芦荟.可以理解,可以使用不同的或另外的皮肤处理剂,这取决于待通过皮肤处理剂处理的皮趺状况. The composite material layer may also include mixed end surface to one or more skin treatment gas alkoxy elastic silicone sentence, for example petroleum jelly and, Hui In a preferred embodiment, the composite material of the elastic layer is up to 20% by weight, preferably from 11.9% by weight petrolatum, and up to 3% by weight, preferably from 0.1 wt% to undertaking of two skin treatment agents, for example, aloe vera. it will be appreciated, different or additional skin treating agents, depending on the skin to be treated by Leather treatment agent instep condition.

在优选的实施方案中,硅氣烷端面层被成形为具有预定孔困案的硅氣烷凝肢片材,在将硅氣烷凝胶片材结合到吸收性核心之前就形成上述孔.典型的,孔具有0.05至l.Omm的直径,每《112大约有5(W50 个孔.虽然在困2的优选实施方案中显示了孔34以相同的闺案进行布置,但端面层12不限于这种布置. In a preferred embodiment, the silicon layer is shaped end surface gas alkoxy silicon alkoxy gas condensate having a predetermined aperture limb sheet trapped case, the hole is formed prior to the gas alkoxy silicone gel sheet bonded to the absorbent core. typically, the hole has a diameter of 0.05 to l.Omm, about 5 (W50 holes per "112. Although a preferred embodiment of the trapped holes 2, 34 are arranged in the same case Gui, but the end face layer 12 It is not limited to this arrangement.

硅氣烷端面层沿着其近表面基本上是平面.然而,砝氣烷端面层可以穿透或充满吸收性核心的不规则表面,所述不规則表面被限定为沿着表面的开口、缝味或局部孔. Alkoxy end surface silicon layer along which the gas near the surface is substantially planar. However, the end face Fa alkoxy gas can penetrate the layer or the absorbent core filled with irregular surface, the irregular surface being defined along the surface of the opening , localized holes or slits taste.

在困13示例的另一实施方案中,与教料10的中心部分22相应的端面层12中的孔34密度更高,而靠近或沿着款料的边缘部分孔34 密度较低或没有孔34.另一选择是,敷料的边蟓部分上,更特别的是在与吸收性核心的斜面部分相应的区域,端面层完全没有孔.这将减緩在敷料的特定区域内的流体吸收,从而更有效地引导渗出物在能更有效地吸收渗出物的区域进行吸收.此外,在另一实施方案中,在或靠近具有插孔的吸收性核心孔更密集,从而增强朝着上迷插孔吸收渗出物. In another exemplary embodiment trapped in 13, 10 and teaching material core portion 22 of the respective end surface 12 of layer higher density of holes 34, and lower or no or near material along an edge portion of the aperture section 34 Density holes 34. Alternatively, the upper edge portion of the dressing Xiang, more particularly in the portion corresponding to the inclined surface region of the absorbent core, the end face layer is completely without holes. this will slow down the fluid in a particular area of ​​the dressing absorption, thereby more effectively guided in the region absorbs exudate can more effectively absorb exudates. Further, in another embodiment, at or near the denser absorbent core has an insertion hole, thereby enhancing toward with the above-jack absorb exudate.

值得注意的是,端面层只结合到吸收性核心的近表面上,可以穿透吸收性核心的距离为其厚度的大约50%.通过在结合到吸收性核心之前形成孔,端面层不会堵塞这些孔或袭盖吸收性核心的孔的内壁. 因此优选通过提供具有预先形成的、以适宜排列设直的孔的端面层, 使得端面层具有适宜的渗透性,相应的,能很好地控制流体通过硅氣坑凝胶层进行传送. Notably, only the upper end joined to the absorbent core layer near the surface, the absorbent core may penetrate a distance of approximately 50% of its thickness by holes formed prior to incorporation into the absorbent core, not the end face layer these clog pores or cover the inner wall of the passage hole of the absorbent core. Thus, preferably by providing a pre-formed layer of a suitable arrangement of the end faces with straight pores, such that the end surface layer having a suitable permeability, the appropriate, can good control of fluid passed through silica gel layer pit gas.

端面层的厚度在其长度上可以变化.例如,端面层可以包括具有较大厚度的区城,该区域靠近与中心部分相对的伤口敷料的边缘部分,从而在具有较厚端面层的该区域为端面层提供较大的强度. The thickness of the end face layer may vary over its length. For example, the end face layer may include a city with a large thickness region, the edge portion of the region near the central portion of the wound dressing relative to the end face having a thicker layer the end surface layer region provides greater strength.

在另一实施方案中,端面层包括至少两个具有不同特性的不同层.例如提供直接邻近伤口处使用的较柔软的层,该层能紧密地贴合伤口处;同时提供置于较柔软层和吸收中心层之间的较硬层,以向敷料提供耐用性和强度.多层或更适当的双层硬度计(durometer)端面层采用了2000年10月24日授权的美国专利6,136,039中描述的原理,该专利由这里描迷的本发明的受让人所拥有,在此结合其公开内容. In another embodiment, the end face layer comprises at least two different layers having different properties, for example, to provide a softer layer used directly adjacent the wound, the layer can fit tightly wound; disposed while providing a softer harder layer between the central layer and the absorbent layer to provide durability and strength to the dressing. double layers or more appropriate hardness (durometer) end surface layer using the US Patent, issued October 24, 2000 to 6,136,039 the principles described in this patent by the assignee of the fan described herein the present invention has, whose disclosure is incorporated herein.

在另一实施方案中,本发明的端面层包含上述类型的硅氣烷层, 并用嵌入的多孔加固层进行加固.所述加固层可以包括非织造,针织或织造的织物材料,或聚合物薄膜,例如由聚氨癍构成的薄獲.在该实施方案中,硅氧坑层中的孔通常与加固层中的孔相应.可以理解,可以在本发明的敷料中使用非硅氣烷端面层而不会偏离其范闺.优选,所述端面层应该是柔软、有弹性、贴合、不刺激并且不致敏.该教料可以包括端面层,该端面层包含由多种聚合物,例如聚氨酹、聚乙烯、聚丙烯、聚跣胺或聚酯材料与压教粘合刑构成的多孔基膜.此外,端面层可以是能透过水蒸气的薄膜、多孔膜、织造-, 非织造-或针织织物或平紋棉麻织物的形式.粘合剂可以是具有较低损伤性并对潮湿皮肤具有良好粘着力的徵球或纤维粘合刑.可以理解, 可以仅仅在部分端面层上涂袭粘合 In another embodiment, the end face layer of the present invention includes the above types of silicon alkoxy gas layer, and reinforced with a porous reinforcement layer is embedded in. The reinforcement layer may comprise a nonwoven, knitted or woven textile material, or a polymer film, for example, is eligible for a thin polyurethane plaques configuration. in this embodiment, the silicone layer in the pit holes generally corresponding to the apertures in the reinforcement layer. It will be appreciated, silicon may be used a non-end gas alkoxy dressing of the present invention surface without departing from its scope Gui. preferably, said end layer should be soft, flexible, laminated, non-allergenic and does not stimulate. the end faces may include teaching material layer, which layer comprises a plurality of end faces polymers, e.g. sprinkle polyurethane, polyethylene, polypropylene, or polyethylene amine Municipal porous polyester base film with an adhesive sentence constituted teaching pressure. Further, the end face layer may be vapor permeable film, a porous film , woven -, nonwoven -. in the form of a knitted fabric or scrim or adhesive may have a low intrinsic damaging the skin moist and bonding balls or fibers having good adhesion of the sentence will be appreciated, it may only be on the end face portion of the passage of the adhesive-coated layer ,例如仅闺绕敷料的边缘部分涂 For example only the edge portion of the dressing around the Inner coat

瘦粘合刑,而中心部分没有粘合刑.优选,端面层可以被穿孔,从而允许液体传送到吸收性核心. Thin adhesive sentence, while the center portion of the adhesive without punishment. Preferably, the end face layer may be perforated, allowing liquid to transfer into the absorbent core.

本发明的敷料可以包括各种成分的组合而不偏离本发明的范闺, 包括,例如药物、皂、消毒和杀菌刑、除臭刑、止血剂、蛋白质、睐以及核酸,优选,这些试刑直接结合或分散在吸收性核心内,或用吸收刑材料进行分散.另一选择是,可以通过任何适宜的方法将这些成分结合在敷料中,包括能结合上迷成分的结合到吸收性核心的附加层. Dressing of the invention may comprise a combination of various components of the present invention without departing from the scope Gui, including, e.g. drugs, soaps, disinfection and sterilization sentence, sentence deodorant, hemostatic agents, proteins, nucleic acids and Lai, preferably, these test punishment a direct bond or dispersed in the absorbent core, or dispersed absorbent material punishment. Alternatively, the ingredients may be by any suitable method incorporated in the dressing, comprising a component capable of binding the above-incorporated into the absorbent core additional layers.

适宜的药物、皂、消毒和杀菌刑、蛋白质、酶是可商购的.优选所述药物包括抗真菌刑、抗细苗刑、血管生长促进剂以及其它适合的试剂. Suitable pharmaceutical, soaps, disinfection and sterilization sentence, proteins, enzymes are commercially available. Preferably, the medicament comprises an anti-fungal criminal, the criminal anti fine vaccine, angiogenesis promoting agents, and other suitable reagents.

如上所迷观察困10,端面层12可以包括靠近或在端面层的外周边缘部分提供的粘合剂.优选该粘合刑为压敏硅氣烷,例如NuSil Technology(Carpenteria, CA)生产、产品标号为MED-1356的粘合刑硅氣烷或是Nu Sil Technok)gy(Carpenteria, CA)生产、产品标号为MED-6345的非常軲的砬氣烷.当端面层固化后,将粘合剂硅氣坑涂到硅氣烷端面层上,使得当其处于部分固化状态时,将粘合刑硅氣烷涂到端面层上,接着当其在端面层上时完成固化.另一选择是,粘合刑可以是采用用于将粘合刑涂到基底上的传统方法涂到端面层上的丙烯酸9t胶或热熔胶. As observed trapped fan 10, the end face 12 may include a layer or near the peripheral edge portion of the end surface of the adhesive layer is provided. Preferably, the silicone pressure-sensitive adhesive penalty gas alkoxy, NuSil Technology (Carpenteria, CA) produced e.g. , product designations as MED-1356 silicone adhesive punishment gas alkoxy or Nu Sil Technok) gy (Carpenteria, CA) production, is designated the wheel of MED-6345 gas alkoxy La. when the layer is cured rear end, the silicon adhesive coated on a silicon gas pit gas alkoxy end surface layers, so that when it is in a partially cured state, the adhesive punishment gas alkoxy silicon layer coated on the end face, when it is completed and then cured on the end face layer . Alternatively, the sentence may be employed for the adhesive bonding penalty applied to the conventional method on the base coating or hot melt adhesive to the acrylic acid 9t layer on the end face.

在本发明优选的方法中,采用双组分硅氣坑制备粘性硅氣垸凝胶.例如NuSil Technology(Carpenteria, CA)生产的MED-6340 A和B部份.A和B两部份中每部份都包括相同的基料,乙烯基取代的聚(二甲基硅氣烷).另外,A部分包括铂催化刑,以便当部分A和部分B进行混合时,促进它们之间的反应.B部分包括交联、含氣化物的硅氣烷.A和B部分都容易进行混合,并分开处理,不反应或固化. In the present invention, a preferred method, a two-component gas pit prepared silicon gas is viscous silicone gel embankment. E.g. two parts NuSil Technology (Carpenteria, CA) produced MED-6340 A and Part B, and B each .A They include the same part of the base material, vinyl-substituted poly (dimethyl silicone alkoxy gas). Additionally, section a comprising a platinum-catalyzed sentence, so that when part a and part B were mixed to promote the reaction between them. part B includes a cross-linked, alkyl silicone .A gas containing vapor and B are easily mixed and processed separately, do not react or cure.

以1:1的比例充分混合A和B部分生成枯性硅氣烷凝胶,从而能够通过催化剂和含有氢化物的硅氧烷活化乙烯基取代的硅氣烷中的乙烯基.这将导致硅氣坑交联,使得其开始闺化.影响闺化所需时间的一个因素是A部分和B部分混合组合的温度.适宜的温度范田为50-150TC,优选为10(M301C.影响闺化时间的另一因素是A部分和B 部分的组合中使用的催化刑的量,然而催化刑也会令人不希望地影响磋氧坑凝胶的粘性.典型的,在本发明中,在100TC固化O.lmrn厚的硅氣烷凝胶端面层,固化时间大约为l分钟,当A部分和B部分在混合后的3-12秒范闺内处于半固化状态时,硅氣烷凝胶端面层通常会移动到吸收性核心. Ratio of 1: 1 and thoroughly mixed Part A B generates dry air alkoxy silicone gel, can be activated vinyl-substituted alkoxy silicon gas through the catalyst and the vinyl-containing silicone hydride which will result in the silicon. crosslinked gas pit, so that it starts of Gui. Gui of a factor affecting the time required for the mixing parts a and B a combination of temperature. suitable temperature range for the field 50-150TC, preferably from 10 (M301C. Effect of Gui another factor is the amount of time the catalytic portion and the sentence a composition used in part B, but also the catalytic punishment undesirably affect gel viscosity consultation oxygen pit. typically, in the present invention, the 100TC curing O.lmrn gas alkoxy thick silicon gel layer end face, the curing time is about l minute, when the part a and part B in a semi-cured state in the range of 3-12 seconds after mixing Gui, alkyl silicone gel gas moves to the end face of the absorbent layer is typically the core.

可以理解,为了举例示范的目的提供了上述用于制备粘性砝氣坑凝胶的步稞,不意味着本发明局限于所述步壤.可以使用任何适合的用于制备部分闺化的粘性端面层的步棘,而这仍在本发明的范田内. It will be appreciated, for purposes of demonstration provides the above steps for the preparation of rye viscous gel Fa gas pit, not meant to limit the invention to the soil step. Any suitable viscosity for preparing an end portion of the Inner step ratchet surface layer, which is still in the scope of the present invention within the field.

在本发明的上下文中,"部分固化"的硅氧烷表示硅氣坑没有完全固化,因此硅氣烷没有完全交联.典型的,关于所使用的凝胶混合物和吸收刑材料,根据经验建立用于生产部分固化的硅氣烷层的参数.虽然生产"部分固化"的硅氣烷层的参数可以变化,但可使用硅氣烷凝胶完全固化所需时间的比例来确定硅氣烷层是否部分固化.特別是,在本发明中,硅氣坑层在固化砝氣烷凝胶所需总时间的5-70% 之间部分固化.由此得出结论,将端面层施加到吸收性核心的时间间隔为5>40%,或更优选为5-20%. In the context of the present invention, the term "partially cured" silicone pit represents a silicon gas is not fully cured, thus alkoxy silicon gas is not fully crosslinked. Typically, the gel mixture and the absorbent materials on the criminal use of empirically established parameters for the production of partially cured silicone layer alkoxy gas. Although the production of "partially cured" gas alkoxy silicon layer parameters may vary, but it can be used in a proportion alkoxy silicone gel gas required for complete cure time determined gas alkoxy silicon layer whether partially cured. in particular, in the present invention, the silicon layer is cured pit gas alkoxy gel Fa desired gas partial curing between 5-70% of the time. It follows that the end surface is applied to the absorbent layer the interval of the core 5 of> 40%, or more preferably 5 to 20%.

当闺化硅氣烷层时,使用催化刑来加速闺化时间,并降低砬氣烷凝胶的粘性.从NuSil Tecimology(Carpenteria, CA)商购砝氣烷催化刑,产品标号为CAT-50. Gui gas when the silicon layer alkoxy, Gui catalytic penalty of time to accelerate, the air and reducing the viscosity of La alkoxy gel. Fa available from gas-Catalyzed penalty NuSil Tecimology (Carpenteria, CA) providers, product designations as CAT-50 .

用于将背衬层16固定到吸收性核心14以及形成顺应元件26的方法优选如困14^19所示来进行.在优选的方法中,如田14所示,可以提供一压板66,该压板被构造成具有与本发明的伤口敷料的一个实施方案中的敷料的顺应元件26以及中心部分22、中间部分23和边缘部分24相应的成形表面70.压板66可选择性地与真空相通,该真空被构造成沿其成形表面70移动该真空,压板被加热到150-200t:的温度范围,优选为185TC.在一优选的实施方案中,压板66包括沿成形表面70延伸的凹橫68,成形表面限定了顺应元件26的形状.压板66 包括与凹槽68和真空相通的至少一条通道72,压板66也包括绕成形表面72延伸的刃形边缘74以及靠近外周边缘的斜面部分76. For the backing layer 16 to the absorbent core 14 and the method of forming the compliant element 26 is preferably as shown trapped 14 to 19 ^. In a preferred method, as shown in fields 14, a pressing plate 66 may be provided, which the platen member is configured to conform with an embodiment of the wound dressing of the invention the dressing 26 and a central portion 22, the corresponding forming surface portion 24 intermediate portion 23 and the edge 70. the pressure plate 66 is selectively communicated with a vacuum, the vacuum is configured to move along the forming surface 70 of the vacuum platen is heated to 150-200t: temperature range, preferably 185TC in a preferred embodiment, platen 66 includes a concave surface 70 extending along the cross-shaped 68. molding surface defining the shape of the compliant member 26. the pressure plate 66 includes a recess 68 and vacuum communication with at least one channel 72, the pressure plate 66 also includes a knife edge surface 72 extending 74 and the inclined surface near the outer peripheral edge about the shaped portion 76.

压板66包括至少一个凹入部分,例如困14中显示的凹入部分78,80,82和84,凹入部分绕压板的中心部分设置.凹入部分78,80,82 和84优选限定为步进式结构,中央凹入部分84比笫一凹入部分78 相对更深.提供所述至少一个凹入部分以减少施加在相应吸收性核心的局部区域的压力.这至少部分导致该局部区域上的背衬层对吸收性核心的粘着水平降低.注意到压板不限于仅在中央部分具有凹入部分,可以沿着压板的任何期望局部区域提供凹入部分,在这些区域中希望背衬层对吸收性核心具有较小的粘着力. The platen comprising at least one recessed portion 66, for example trapped recessed portions 80, 82 shown in 14 and 84, the central portion of the concave portion disposed around the platen. 78,80, 82 and recessed portion 84 is preferably defined as step into the structure, the central recessed portion 84 to a concave portion 78 opposite Zi deeper provided at least one recessed portion to reduce the pressure applied in a localized area of ​​the respective of the absorbent core. this results in at least a part of the local area the backing layer of the absorbent core to reduce the level of adhesion is noted that the pressure plate is not limited to only the central portion has a concave portion, the concave portion may be provided along any desired partial area of ​​the platen, the backing layer of the absorbent in the hope that these regions of the core has a smaller adhesion.

压板66可以包括多个所述通道72,利用所述通道使真空和背衬层16相通.例如,由于吸收性核心通常为矩形形状,压板66可以包括8个闺绕凹橫68的相等间隔开的通遣.在该实施方案中,可以在与吸收性核心的中间部分相应的位置提供一通道,并可以在每个拐角之间提供一通遣.此外,压板可以包括至少一个類外的与压缩空气相通的通道,所述至少一个類外的通道被设置在与中心部分或边缘部分相应的压板上. Platen 66 may comprise a plurality of the channels 72, with the vacuum passage 16 and the backing layer communication. For example, since the absorbent core of generally rectangular shape, platen 66 can include a recess about equal to the Inner cross-8 68 spaced apart pass removal. in this embodiment, a passage may be provided at a position corresponding to the intermediate portion of the absorbent core, and may be provided through a severance between each corner. Further, the pressure plate may include at least one class with an outer compression an air communication passage, an outer passage of the at least one class is arranged on the respective platen and the central portion or edge portion.

值得注意的是,可以根据最终的伤口敷料的形状和它独特的特征来构造压板.例如,压板可以被设置成大致环形,具有通常为环形的凹槽. Notably, the platen may be constructed according to the shape of the final wound dressing and its unique characteristics. For example, the pressure plate may be provided substantially annular, having a generally annular groove.

如困15所示,将背衬层16设置在吸收性核心14上,然后,如田l6所示,将压板M紧靠到背衬层16上,通过真空朝成形表面70 移动背衬层16.当移动背衬层16紧靠成形表面70时,朝吸收性核心14连续移动压板66.值得注意的是,优选将部分背衬层16拉到凹槽幼中,从而形成至少部分顺应元件26.在困16中,在成形表面70 与最终的教料的中心部分、中间部分和边缘部分22,23,24相应的部分上加热压板66.凹橫68的表面可以被加热或不被加热. As the storm 15, backing layer 16 is provided on the absorbent core 14, and then, as shown in field l6, M against the platen 16 to the backing layer, by vacuum forming surface 70 is moved toward the backing layer 16 when the mobile backing layer 16 against the forming surface 70, toward the absorbent core 66. the continuous movement of the platen 14 is noteworthy, a portion of backing layer 16 is preferably pulled immature recess, thereby forming at least a portion of the compliant element 26 in sleepy 16, the forming surface 70 and the central portion of the final teaching material, heating the intermediate portion and the edge portions 23, 24 on respective lateral surface of the platen 66. the recess 68 may be heated or unheated.

在困17中,压板66使背衬层16紧靠吸收性核心14.如困18中可以看到的,刃部分74有效地切断吸收性核心14和背衬层16,使教料10的边缘部分24具有斜面部分28.在从吸收性核心14擻回压板之前,如困18所示,从成形表面72移走真空,通常对着背衬层的中心部分喷射空气.如困19所示,随后,从形成的具有背衬层16的吸收性核心14上移走压板66. 17 trapped in the pressure plate 16 against the backing layer 66 so that the absorbent core 14. As can be seen in the storm 18, effectively cutting edge portion 74 of the absorbent core 14 and the backing layer 16, the edges 10 of the teaching material portion 24 having a ramp portion 28. before returning to the platen 14 from the absorbent core shake, trapped as 18, the vacuum is removed from the forming surface 72, generally toward the central portion of the backing layer of the air jet. as shown trapped 19, subsequently, the platen 66 is removed from the absorbent core 16 has a backing layer 14 is formed.

在另一实施方案中,构造压板的成形表面,使得其与敷料的中心部分相应的中心部分延伸,从而使吸收性核心具有厚度,该厚度比与顺应层和边缘部分相应的区城要更小.这就使得背衬层更宽松地枯着到伤口敷料中心部分的吸收性核心上.由于吸收性核心的厚度不同, 敷料具有的好处是吸收材料的不连续部分将使背衬层更有效地从吸收性核心分开,并且在敷料的中心部分处分开之前,将进一步防止背衬层从敷料的边缘部分处分离. In another embodiment, the platen surface structure shaped such that it extends a respective central portion of the center portion of the dressing, so that the absorbent core has a thickness, the thickness ratio of the compliant layer and the edge portion corresponding to the city area smaller This permits more loosely dry the backing layer with the absorbent core of the wound dressing to the central portion. due to the different thicknesses of the absorbent core, the dressing has the advantage that discrete portions of absorbent material will more effectively backing layer separated from the absorbent core, and the center of the dressing prior to disposition opening portion, will further prevent the backing layer is separated from the edge portion of the dressing.

可以理解,上面描述的本发明的实施方案可以采取多种不同的形状、大小以及结构,而不会偏离本发明的范闺. It will be appreciated, embodiments of the present invention described above may take many different shapes, sizes and structures, without departing from the scope of the present invention Gui.

可以理解,上面描述的本发明的实施方案本质上是说明性的,本领域技术人员可以对其改进,因此,本发明不应被认为受限于这里公开的实施方案,而仅应被附加的权利要求所限定. It will be appreciated, the embodiments are illustrative embodiment of the present invention essentially as described above, those skilled in the art may be made thereto improved, therefore, the present invention should not be limited to the embodiments disclosed herein, but should only be added defined by the claims.

Claims (34)

1. 一种伤口敷料,它具有近侧面和远侧面,敷料的近侧面接近敷料使用者的皮肤,所述敷料包括:吸收性核心,其具有相对的近侧面和远侧面,并沿着远侧面限定了边缘部分和中心部分;连接到所述吸收性核心并且沿着所述吸收性核心的边缘部分密封的不透液体、能透过蒸汽的背衬层,所述背衬层具有至少一个与吸收性核心的远表面分离并且不粘附远表面的顺应元件;其中顺应元件在吸收性核心的中心部分和边缘部分之间的位置提供吸收性核心上的位置。 1. A wound dressing having a proximal face and a distal face, the proximal face dressing the dressing close the user's skin, said dressing comprising: an absorbent core having a distal and proximal face opposite sides, and along the distal side defining an edge portion and a central portion; the absorbent core is connected to and sealed along the edge portion of the absorbent core liquid impervious, vapor permeable backing layer, the backing layer having at least one distal surface of the absorbent core and are not separated away adhering compliant element surface; wherein the position of the member between the central portion and the edge portion of the absorbent core to conform to the absorbent core provided on a position.
2. 根据权利要求1的伤口敷料,其中所述至少一个顺应元件与置于所述边缘部分和中心部分之间的吸收性核心的中间部分相应。 2. A wound dressing according to claim 1, wherein said at least one intermediate portion of the corresponding element of the absorbent core and disposed between the edge portion and the central portion of said compliant.
3. 根据权利要求2的伤口敷料,其中所述吸收性核心在中心部分处的厚度小于中间部分处的厚度, 3. A wound dressing according to claim 2, wherein the thickness of said absorbent core at the central portion is smaller than the thickness of the intermediate portion,
4. 根据权利要求1的伤口敷料,其中吸收性核心的边缘部分包括靠近其外周边缘的斜面部分。 A wound dressing according to claim 1, wherein the edge portion of the absorbent core comprises a ramp portion near its outer peripheral edge.
5. 根据权利要求1的伤口敷料,其中吸收性核心的厚度从中间部分的外部分到边缘部分逐渐减小。 A wound dressing according to claim 1, wherein the thickness of the absorbent core part gradually decreases from the intermediate portion to the outer edge portion.
6. 根据权利要求5的伤口敷料,其中吸收性核心的厚度沿着边缘部分的外周边缘具有最小值。 6. A wound dressing according to claim 5, wherein the absorbent core has a minimum thickness along an outer peripheral edge of the edge portion.
7. 根据权利要求l的伤口敷料,其中背衬层沿着吸收性核心的外周边缘永久固定到吸收性核心上。 7. A wound dressing as claimed in claim l, wherein the backing layer permanently affixed to the absorbent core along the outer peripheral edges of the absorbent core.
8. 根据权利要求7的伤口敷料,其中沿着吸收性核心的边缘部分密封背衬层。 8. A wound dressing according to claim 7, wherein the edge portion of the absorbent core along the seal backing layer.
9. 根据权利要求1的伤口敷料,其中吸收性核心的边缘部分包括至少一个斜面部分,所述背衬层永久固定到吸收性核心的边缘部分上。 9. A wound dressing according to claim 1, wherein the edge portion of the absorbent core comprises at least one ramp portion, the backing layer permanently affixed to the edge portion of the absorbent core.
10. 根据权利要求1的伤口敷料,其中当所述伤口敷料没有水分时,所述背衬层粘着到吸收性核心的中心部分上,当伤口敷料已经吸收一些水分时,所述背衬层被构造成与吸收性核心的中心部分分离。 10. A wound dressing according to claim 1, wherein said wound dressing when no moisture, the backing layer adhered to the central portion of the absorbent core, when the wound dressing has absorbed some moisture, the backing layer is configured to separate the central portion of the absorbent core.
11. 根据权利要求l的伤口敷料,其中顺应元件包括至少一个与吸收性核心的外周同心的脊状物,该脊状物从吸收性核心的远表面向外延伸。 11. A wound dressing as claimed in claim l, wherein the compliant element comprises at least one concentric with the outer periphery of the absorbent core ridges, the ridges extending outwardly from the distal surface of the absorbent core.
12. 根据权利要求l的伤口敷料,其中当伤口敷料没有水时,顺应元件被限定为背衬层的一部分,与吸收性核心的远側面共面延伸。 12. A wound dressing as claimed in claim l, wherein the wound dressing when there is no water, the compliant element is defined as a portion of the backing layer, extending coplanar distal face of the absorbent core.
13. 根据权利要求1的伤口敷料,进一步包括固定到吸收性核心的近侧上的多孔皮肤粘着性端面层。 13. A wound dressing according to claim 1, further comprising a porous skin is fixed to the end surface of the adhesive layer on the absorbent core proximally.
14. 根据权利要求13的伤口敷料,其中端面层是不连续的硅氧烷凝胶层. 14. A wound dressing according to claim 13, wherein the end face layer is a discontinuous layer of silicone gel.
15. 根据权利要求1的伤口敷料,其中吸收性核心选自聚氨酯泡沫材料、织造材料以及非织造材料。 15. A wound dressing according to claim 1, wherein the absorbent core is selected from a foam material, a woven material, nonwoven material and a polyurethane.
16. 根据权利要求1的伤口敷料,其中背衬层选自胶乳橡胶、硅氧烷薄膜、聚氨酯薄膜以及聚乙烯薄膜。 16. A wound dressing according to claim 1, wherein the backing layer is selected from latex rubber, silicone film, a polyurethane film, and polyethylene film.
17. 根据权利要求1的伤口敷料,其中吸收性核心包含至少一种吸收材料的不连续部分。 17. A wound dressing according to claim 1, wherein the absorbent core comprises at least one discontinuous portion of the absorbent material.
18. 根据权利要求17的伤口敷料,其中吸收材料的不连续部分嵌入在吸收性核心中。 18. A wound dressing according to claim 17, wherein the discrete portions of absorbent material is embedded in the absorbent core.
19. 根据权利要求18的伤口敷料,其中吸收材料选自亲水胶体、 水凝胶和亲水聚合物。 19. A wound dressing according to claim 18, wherein the absorbent material is selected from hydrocolloids, hydrogels and hydrophilic polymers.
20. 根据权利要求17的伤口敷料,其中吸收材料的不连续部分设置在沿着吸收性核心的远侧形成的插孔中。 20. A wound dressing according to claim 17, wherein the insertion hole is formed along the absorbent core distal portion is disposed in a discontinuous absorbent material.
21. —种生产伤口敷料的方法,所述敷料具有近侧面和远侧面,敷料的近侧面接近敷料使用者的皮肤,所述敷料包括具有近侧面和远侧面的吸收性核心,沿着吸收性核心的远表面延伸的不透液体、能透过蒸汽的背衬层,背衬层包括限定与吸收性核心的远表面分离并向外延伸的顺应元件的部分,所述方法包括以下步骤:将背衬层的边缘部分固定到位于接近吸收性核心的外周的边缘部分上;将背衬层的中心部分连接到吸收性核心的中心部分上;和通过拉动所述顺应元件离开吸收性核心形成顺应元件。 21. - The method of wound dressing seed production, the dressing having a proximal face and a distal face, the proximal face dressing the dressing close the user's skin, said dressing comprising an absorbent core having a proximal face and a distal face along the absorbent part, the method of extending distal surface of the core liquid impervious, vapor permeable backing layer, the backing layer and comprising an absorbent core defining a distal surface of the separator and extending outwardly of the compliant element comprises the steps of: the backing layer is fixed to the edge portion positioned near the periphery of the outer edge portion of the absorbent core; the central portion of the backing layer is connected to the central portion of the absorbent core; and pulling away from the absorbent core through the compliant member forming conform element.
22. 根据权利要求21的方法,其中当背衬层的边缘部分和中心部分连接到吸收性核心上时,用真空拉动顺应元件离开吸收性核心D 22. The method of claim 21, wherein when the edge portion and the central portion is connected to the backing layer to the absorbent core, the absorbent core away from the compliant element with a vacuum pulled D
23. 根据权利要求22的方法,进一步包括从背衬层除去真空的步邀 23. The method of claim 22, further comprising the step of removing a vacuum from the backing invited
24. 根据权利要求23的方法,进一步包括当形成顺应元件后,朝背衬层喷射压缩空气的步骤。 24. The method of claim 23, further comprising when the compliant element, injecting compressed air toward the step of forming the backing layer.
25. 根据权利要求21的方法,其中压板被构造成具%与顺应元件和背衬层的边缘部分和中心部分相应的预定形状,该压板用于将背村层固定到吸收性核心上,该压板包括至少一个限定背衬层的顺应元件的形状并选择性地与真空相通的凹槽。 25. The method of claim 21, wherein the platen is configured with a compliant portion having% corresponding to a predetermined shape and the backing member and the central edge portion, the platen for backing village secured to the absorbent core layer, which the platen comprising at least one compliant element defining the shape of the back layer and selectively in communication with a vacuum groove.
26. 根据权利要求25的方法,进一步包括以下步骤: 在通过将与顺应元件相应的背衬层的区域拉入与真空相通的至少一个凹槽中而将背村层的边缘部分和中心部分连接到吸收性核心之前,拉动背衬层靠到压板上;将其上带有背衬层的压板紧靠吸收性核心,在预定的温度下加热所述压板,使得背衬层的至少边缘部分连接到吸收性核心上;以及当背衬层的至少边缘部分连接到吸收性核心上之后,从背衬层上除去真空。 26. The method of claim 25, further comprising the steps of: passing area corresponding to the compliant backing member in communication with the vacuum pull at least one recess and the back edge portion and a central portion connecting layer Village prior to the absorbent core, the backing layer is pulled against the platen; and carrying thereon a backing layer of the absorbent core against the platen, the platen is heated at a predetermined temperature, such that at least the edge portion of the backing layer is connected to the absorbent core; and when, after the backing layer is connected to at least a portion of the edge of the absorbent core was removed in vacuo from the backing layer.
27. 根据权利要求25的方法,其中压缩空气被施加到背衬层的中间部分上,以使背衬层的中间部分从压板分开。 27. The method according to claim 25, wherein the compressed air is applied to the intermediate portion of the backing layer so that the intermediate portion of the backing layer is separated from the platen.
28. 根据权利要求25的方法,其中压板包括与临近伤口敷料的外周的边缘部分的一个末端部分相应的锥形轮廓,所述轮廓使伤口敷料具有锥形边缘。 28. The method according to claim 25, wherein the platen comprises a tip edge portion of the outer periphery of the wound dressing and the adjacent portion of the corresponding conical profile, the profile of the wound dressing has a tapered edge.
29. 根据权利要求25的方法,其中压板包括至少一个沿着压板的预定轮廓限定的凹入部分。 29. The method of claim 25, wherein the platen includes at least one predetermined contour defined along a concave portion of the platen.
30. 根据权利要求29的方法,其中在压板的中心轴附近限定至少一个凹入部分。 30. The method of claim 29, wherein the platen near the central axis defines at least one recessed portion.
31.根据权利要求30的方法,其中压板包括至少两个同心的凹入部分。 31. The method according to claim 30, wherein the platen comprises at least two concentric concave portion.
32. 根据权利要求21的方法,其中沿吸收性核心的外周边缘密封背村层的边缘部分。 32. The method according to claim 21, wherein the absorbent core along the outer peripheral edge of the sealing layer back edge part of the village.
33. 根据权利要求25的方法,其中至少一个凹槽连接到至少一个与压缩空气相通的通道上。 33. The method according to claim 25, wherein the at least one groove connected to at least a passage communicating with the compressed air.
34. 根据权利要求33的方法,进一步包括经由所述至少一个通道将压缩空气施加到顺应元件从而形成两个同心脊状物的步骤。 34. The method of claim 33, further comprising the step of applying to a compliant element two concentric ridges so as to form at least one channel via the compressed air.
CN 200380110023 2002-12-31 2003-12-03 Wound dressing with acclimation element for swelling dressing CN100536806C (en)

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CN1756519A (en) 2006-04-05

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