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CN102057275A - 检测减压伤口治疗中的感染 - Google Patents

检测减压伤口治疗中的感染 Download PDF

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CN102057275A
CN102057275A CN200980120750XA CN200980120750A CN102057275A CN 102057275 A CN102057275 A CN 102057275A CN 200980120750X A CN200980120750X A CN 200980120750XA CN 200980120750 A CN200980120750 A CN 200980120750A CN 102057275 A CN102057275 A CN 102057275A
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wound
infection
fluid
pad
antibody
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乔治·哈钦森
迪帕克·V·奇尔派迪
南希·普莱斯
艾米·麦克纳尔蒂
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KCI Licensing Inc
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Abstract

提供了一种检测由伤口部位处的感染生物体引起的伤口中的感染的方法。还提供了一种用于检测伤口部位处的伤口中的感染的系统。另外,提供了一种包括荧光素酶的多孔的垫。

Description

检测减压伤口治疗中的感染
相关申请的交叉引用
本申请要求享有2008年6月4日提交的美国临时申请第61/058,819号和2008年11月26日提交的美国临时申请第61/118,161号的权益,这两个临时申请在此通过引用并入。
背景
1.发明领域
本发明大体上涉及组织治疗系统且更具体涉及用于检测伤口中的感染的方法和组合物。
2.相关领域的描述
临床研究和实践已经表明,在接近组织部位提供减压的系统增加和加速所述组织部位的新组织的生长。此现象的应用很多,但是减压的应用在治疗伤口中已经特别成功。此治疗(在医疗界中经常被称作“负压伤口治疗”、“减压治疗”或“真空治疗”)提供许多益处,包括更快愈合和增加的肉芽组织的形成。通常,通过多孔的垫或其他歧管设备向组织施加减压。多孔的垫包含能够将减压分配至组织并为由组织抽吸的流体形成通道的小室或孔。多孔的垫通常被引入具有促进治疗的其他组分的敷料中。
与使用这种系统相关的一个困难之处在于检测存在于伤口内的感染的存在或感染类型而无需扰动覆盖伤口的气密敷料。已经提出了与检测微生物有关的许多方法。这些方法的不同形式包括使用分光计、色谱仪和用于检测微生物存在的其他电子传感器。示例性的美国专利包括2000年1月25日授权的Lewis等人的美国专利第6,017,440号;2001年2月13日授权的Chutjian等人的美国专利第6,188,067号;1998年9月22日授权的Hunter等人的美国专利第5,811,255号;1997年3月18日授权的Overton等人的美国专利第5,611,846号;和1996年12月10日授权的Yu的美国专利第5,583,281号。
虽然这样的系统在促进伤口闭合方面已经是高度成功的,但是愈合先前被认为是不可治疗的许多伤口仍然存在一些困难。由于这种系统的性质要求大气密封的伤口部位,因此不去除伤口敷料难以检测诸如可能存在于伤口部位中的细菌的污染微生物的存在或浓度。目前为了检测细菌感染的存在或浓度,需要扰动伤口部位,且由此中断治疗。而且,任何对伤口部位的扰动都可能增大感染伤口部位的可能性。另外,去除伤口敷料可能造成患者的疼痛或不适。
为避免本发明描述的这些问题,美国专利申请公开第2002/0143286号已经取得了一些进展,该申请在此通过引用并入。该申请描述了使用感测设备,该感测设备光学上感测伤口流体内的细菌剂或其他感染形式的存在。期望更特异性识别和量化感染剂的其他方法。
因此,本发明的主要目的是提供真空辅助的伤口闭合设备,其使用在利用气密敷料,而不会扰动伤口部位处的敷料的过程中,检测伤口部位处存在的感染的存在的装置。
本发明的另一个目的是提供一种在利用气密敷料,而不会扰动伤口部位处的敷料的过程中,用于识别伤口部位处存在的感染的性质或具体类型的装置。
本发明的又一个目的是提供一种在利用气密敷料,而不会扰动伤口部位处的敷料的过程中,用于检测伤口部位处存在的感染剂的浓度的装置。
概述
本文中描述的示例性实施方案的方法和装置解决了用于检测减压治疗中的感染的现有装置存在的问题。在一个实施方案中,提供了检测由伤口部位处的感染生物体引起的伤口中的感染的方法,其包括向组织部位施加减压,响应减压而从伤口部位抽取流体,收集从伤口部位抽取的流体以及测定从伤口部位收集的流体的感染产物或感染生物体的组分,由此产物或组分的存在表明伤口存在感染。
在额外的实施方案中,提供了用于检测伤口部位处的伤口的感染的系统,其包括减压源,适于将减压传送至伤口部位的多孔的垫,适于提供对垫和伤口部位基本上气密覆盖的盖布,将多孔的垫流体连接至减压源的导管,由此响应减压而从伤口部位抽取流体,以及用于分析从伤口部位抽取的流体以确认感染产物或感染生物体的组分,由此产物或组分的存在表明伤口存在感染。
在另一个实施方案中,提供了适于将减压分配至伤口部位的多孔的垫,其包括荧光素酶。
参照附图和下面的详细描述,示例性的实施方案的其他目的、特征以及优势将变得明显。
附图简述
图1是以部分横截面显示的用于检测感染的减压治疗系统的示例性实施方案的图。
图2是以部分横截面显示的用于检测感染的减压治疗系统的示例性实施方案的图,其中减压源包括用于接收芯片的隔室。
图3是以部分横截面显示的具有包含物质的垫的减压治疗系统的示例性实施方案的图。
详述
在下面示例性实施方案的详述中,参照构成示例性实施方案的一部分的附图。这些实施方案被充分详细地描述,以使本领域的技术人员能够实践本发明,而且应该理解到,可使用其他实施方案,并可做出逻辑结构、机械、电及化学变化,而并不偏离本发明的精神或范围。为避免对使本领域技术人员能够实践于此描述的实施方案来说不必要的细节,描述可省略对本领域技术人员熟知的某些信息。因此,以下详细描述不应理解为限制性意义,并且示例性实施方案的范围仅由所附权利要求界定。
参考图1,减压治疗系统100的示例性实施方案向可能包括伤口111的组织部位110提供了减压治疗并检测组织部位110内的感染。减压治疗系统100包括流体连接至导管122的减压源128,导管122经由敷料108将减压传送至组织部位110。敷料108包括设置在伤口111内的垫112。盖布116粘附到患者的表皮114并提供围绕伤口111的流体密封,允许维护伤口111上的减压。减压使来自伤口111的流体,如渗出物被抽吸到设备118以便分析所抽取的流体或流体提取物的感染产物或感染生物体或生物体组的组分。
伤口111可以是位于任何组织部位110上或其内的损伤或缺损,包括,但不限于,骨组织、脂肪组织、肌肉组织、皮下组织、神经组织、皮肤组织、血管组织、结缔组织、软骨、腱或韧带。伤口111还可以是不一定被损伤或缺损的任何组织,而是期望增加或促进额外组织的生长的区域。
正如本文中使用的,“感染生物体”是能够造成伤口感染的微生物(细菌、真菌、原生生物、古菌、病毒)。非限制性的示例包括金黄色葡萄球菌、产脓性链球菌、大肠杆菌、绿脓假单胞菌、奇异变形菌、肺炎克雷伯氏菌、白念珠菌和脆弱类杆菌。这包括具有特定特征或产生特定产物的特定种或属的具体生物类型,其中特征或产物可以通过测试下述物质来检测,如引起中毒性休克综合征毒素-1(TSST-1)的金黄色葡萄球菌;凝固酶阴性葡萄球菌,或D组链球菌;以及(b)含有多于一个种的组,如革兰氏阴性细菌、棒状杆菌属、肠球菌、肠杆菌属、链球菌属。在一些实施方案中,感染生物体或生物体组是细菌。
正如本文中使用的,“感染产物”是感染过程中由宿主(即,患者)或感染生物体产生的可特异性识别的化合物。当未受到感染时,也可以制得宿主产物,除非这样的产物用于本发明的方法中,在感染过程中从伤口抽吸的流体中产生的量比从未受感染的伤口抽吸的流体中产生的量高。感染产物的非限制性的示例包括腺苷-5′-三磷酸(ATP)(由细菌产生)和某些细胞因子、纤连蛋白片段、中性粒细胞蛋白酶和巨噬细胞蛋白酶(由宿主产生)。可特异性识别的化合物是能够单独通过其对特定试剂,诸如抗体或特定序列的核酸探针的化学组成或反应性来识别的化合物。
敷料108的盖布116可以是提供流体密封的任何材料。盖布116可以是,如可渗透的或可半渗透的弹性材料。“弹性”意指具有弹性体的性能。这通常指的是具有类似橡胶的性能的聚合物材料。更具体而言,大多数弹性体具有大于100%的拉伸速率和显著量的回弹性。材料的回弹性指的是材料从弹性变形恢复的能力。弹性体的示例可以包括,但不限于,天然橡胶、聚异戊二烯、苯乙烯丁二烯橡胶、氯丁二烯橡胶、聚丁二烯、丁腈橡胶、丁基橡胶、乙丙橡胶、三元乙丙橡胶、氯磺化聚乙烯、聚硫橡胶、聚氨酯、EVA膜、共聚多酯和硅氧烷。盖布116材料的具体示例包括硅氧烷盖布、3M Tegaderm盖布、丙烯酸盖布,诸如从Avery Dennison获得的丙烯酸盖布或切开盖布。盖布116可以包括孔131,其中接驳体133插入孔131内。接驳体133提供了导管122与由盖布116形成的密封空间之间的流体相通。
正如本文中使用的,术语“垫”,通常指被提供来帮助向组织部位110施加减压,将流体传送至组织部位110或从组织部位110去除流体的物质或结构。垫112通常包括将所提供的流体分配至围绕垫112的组织部位110或从围绕垫112的组织部位110去除流体的多个流动通道或路径。在一个示例性的实施方案中,流动通道或路径互连以改善提供至组织部位110或从组织部位110去除的流体的分配。垫112可以是能够设置成与组织部位110接触并将减压分配至组织部位110的生物相容性材料。垫112的示例可以包括,例如,但不限于,具有设置形成流动通道的结构元件,诸如,如多孔状泡沫、开孔泡沫、多孔的组织结缔、液体、凝胶和包括或固化以包括流动通道的泡沫。垫112可以是多孔的且可以由泡沫、纱布、毡垫或适于特定生物应用的任何其他材料制成。在一个实施方案中,垫112是多孔的泡沫且包括用作流动通道的多个互连的小室或孔。多孔的泡沫可以是聚氨基甲酸酯,开孔的网状泡沫,诸如由Kinetic Concepts,Incorporated of San Antonio,Texas制造的Granufoam
Figure BPA00001266091000052
材料。其他实施方案可以包括“闭合的小室”。垫112的这些闭合的小室部分可以包含多个小室,其中的大多数并未流体连接至邻近的小室。闭合的小室可以选择性地被设置在垫112内以防止流体输送透过垫112的外周表面。在一些情形中,垫112还可以用于将诸如药物、抗菌剂、生长因子和各种溶液的流体分配至组织部位110。其他层可以被包括在垫112内或其上,诸如吸收性材料、芯吸材料、疏水性材料和亲水性材料。
在一些实施方案中,垫112包括与伤口111内的感染生物体或感染产物的组分反应的化合物。如上所讨论的,感染产物可以是来自宿主(如化合物,诸如在对感染的响应中产生的宿主蛋白,如细胞因子、纤连蛋白片段、中性粒细胞蛋白酶或巨噬细胞蛋白酶)或来自生物体(如,ATP)。在这些实施方案中,将化合物与感染生物体或感染产物的组分之间的反应产物抽吸到导管122内并由设备118检测。当经由通信连接124检测到反应产物时,设备118可以随后通知数据处理系统126,诸如计算机。通信连接124包括有线和无线形式的通信。数据处理系统126存储数据且可以执行计算,如计算所测量的组分或产物的浓度,或感染程度。
在另一个实施方案中,设备118具有检测感染生物体或感染产物的组分的反应化合物;在此实施方案中,来自伤口111的流体被牵拉通过垫112,并进入设备118以使流体存在于化合物中。设备118还可以具有用于测量反应结果的装置(如,电荷耦合器件(CCD)相机以测量微阵列、化学芯片或微观流体装置的结果,或光检测器以测量荧光素酶反应产生的光)。
可以在该示例性实施方案中检测到的细菌感染的常见产物是腺苷-5′-三磷酸(ATP)。在这些方法中,ATP可以由本领域已知的任何方式来检测。在一些实施方案中,利用下面的在Mg+2存在下的萤光素酶-萤光素反应来检测ATP:
ATP+荧光素酶+荧光素+O2→AMP+CO2+2Pi+光使用,如光检测器可以看到光且任选地量化光。在一个实施方案中,设备118是光检测器。
因而,在一些实施方案中,通过使从伤口111抽取的流体或其提取物与荧光素酶和荧光素组合,然后测量随之发生的反应中产生的光,来检测ATP。如果产生的光超过未受感染的伤口产生的光,那么伤口111受到感染。在多个实施方案中,通过测量发射的光来量化ATP,其中所抽取的流体或其提取物中ATP的量逐渐增大表明伤口111的感染逐渐严重。参见,如美国专利第4,833,075号;第5,756,303号;和第5,916,802号以及欧洲专利申请0025351A1,如量化ATP以确定液体中细菌的存在的方法。
在其他实施方案中,感染产物是与炎症反应有关的宿主蛋白。在这些实施方案中,设备118可以检测任何这样的宿主蛋白。在这些实施方案的一些中,宿主蛋白是细胞因子、纤连蛋白片段、中性粒细胞蛋白酶或巨噬细胞蛋白酶。参见,如PCT专利公布WO 2004/086043和美国专利申请公布US 2005/0079542。
设备118还可以通过测定感染生物体或生物体组的组分来确定伤口流体或提取物中的感染。正如本文中使用的,“感染生物体的组分”是能够造成伤口感染的可特异性识别的生物体部分。这种组分的非限制性的示例是脂多糖(LPS)、脂磷壁酸(LTA)、抗原和具有特定序列(其是特定的生物体的特征)的DNA。
在测定革兰氏阴性细菌的某些实施方案中,抽取的流体或其提取物与鲎变形细胞溶解物组合,后者对革兰氏阴性细菌的脂多糖(LPS)是敏感的。如,用抗体通过已知的免疫测定也可以检测到LPS,包括下述测定:通过经由补体调理的LPS-IgM免疫复合物引发宿主中性粒细胞呼吸爆发活动来测量内毒素活性,诸如Endotoxin Activity AssayTM(Hilmi等人,J.Organ Dysfunction,advanced online publication,2009年3月23日)。
在测定革兰氏阳性细菌的多个实施方案中,待测定的组分是脂磷壁酸(LTA),其通过本领域已知的任何方式来检测。在这些实施方案的一些中,LTA借助下述测定来检测,该测定包括使抽取的流体或其提取物与特异性结合到LTA的抗体组合,然后确定抗体是否已经结合到LTA。
在一些实施方案中,测试伤口流体或其提取物的能够造成伤口感染的至少一种特定属或种的生物体,如链球菌属或产脓性链球菌。当生物体被认为是确定影响窄的宿主范围的感染治疗时,如使用具有窄的宿主靶向范围的抗生素时,这种测试是期望的。
在一些实施方案中,测定能够造成伤口感染的特定属或种的生物体包括设备118在伤口流体的提取物中确认对生物体或生物体组是特异性的核酸序列。在这些方法的一些中,处理抽取的流体以从感染生物体中释放DNA或RNA;DNA或由RNA逆转录的cDNA用可检测的标记物标记并应用到对至少一种特定的生物体或生物体组是特异性的至少一种固定化核酸;以及评估固定化核酸以确定可检测的标记是否被特异性结合到其上。此处,可检测的标记特异性结合到固定化核酸表明伤口111受到特定的生物体或生物体组的感染。设想微阵列或微观流体芯片可以用于这些测试。参见,如Affymetrix(2005)应用注释,感染疾病中的微阵列应用(Microarray Application in Infection Disease),在www.affymetrix.com上。在这些实施方案的一些方面中,将标记的DNA或cDNA应用到包括至少5、10、20、50或100个固定化核酸的微阵列,每一个核酸对能够造成伤口感染生物体或生物体组是特异性的。
在其他实施方案中,抗体或适体用于检测生物体或生物体组上的抗原或适体结合部位。在这些实施方案的一些中,抽取的流体或其提取物与对属或种的生物体是特异性的抗体或适体组合,然后评估抗体或适体以确定伤口111的抗原是否结合到抗体或适体。此外,多个抗体或适体可以用于多种生物体的测定。因而,在这些方法的一些中,抽取的流体或其提取物与超过一种的抗体或适体组合,每一个抗体或适体对能够造成伤口感染的不同属或种的生物体是特异性的;以及评估超过一种的抗体或适体以确定超过一种的抗体或适体中的任一种是否从伤口结合到抗原或适体结合部位。
本领域中已知许多用于确定抗体或适体是否结合到抗原或适体结合部位的测定。示例包括ELISA、Western印迹以及描述在美国专利申请公布US 2007/0292397A1中的测定,该专利在此通过引用并入。
在一个实施方案中,设备118包括隔室(未显示),其用于放置包括结合抗体的衬底(未显示),使得当从伤口111抽取流体时,流体流到抗体上。对设备118来说,这些方法并不限于任何特定的衬底。示例包括聚苯乙烯微量滴定板、硝基纤维素纸和微芯片。在其他实施方案中,设备包括鲎变形细胞溶解物。
检测伤口111中的感染的一种方法包括使伤口111经受足以从伤口111抽取流体的减压。来自伤口111的流体可以被收集在设备118中或其他地方,且可以测定抽取的流体或其提取物的感染产物或感染生物体或生物体组的组分。产物或组分的存在表明伤口111内的感染。此示例性实施方案可以允许测试伤口111的感染而无需去除伤口的敷料108,以及检测特定的生物体或生物体组。
在可选择的实施方案中,系统100还包括适于收集伤口流体的储器(未显示)。这种储器可以用于收集利用系统100的单独部件,诸如设备118进行测试的流体。在另一个实施例中,设备118或减压源128可以具有这样的储器。
图2显示了包括减压源228的减压治疗系统200的示例性实施方案,减压源228包括用于芯片235的端口230。芯片235可以是微观流体芯片或微阵列芯片或化学芯片,以及检测器(如,CCD相机)。芯片235可以用于检测特定抗原或生物体或生物体组的特征核酸。将伤口流体抽取通过导管122以与端口230内的芯片235相互作用。导管122的出口237将伤口流体传送至芯片235,使得芯片235可以与伤口流体相互作用。减压源228可以被配置成分析微阵列或微观流体数据。在使用微阵列的一些实施方案中,将标记的DNA或cDNA应用到包括至少5、10、20、50或100个固定化核酸的微阵列,每一个核酸对能够造成伤口感染的不同生物体或生物体组是特异性的。随后,通过废弃物导管236去除多余的流体。
任选地,系统200还可以具有设备118和通信电缆224。设备118或单独的数据处理系统(未显示)可以被配置成分析微阵列或微观流体数据。在系统200中,可以对伤口流体进行两次测量-来自设备118的和来自端口230的芯片235内。
图3是包括浸渍有荧光素酶和荧光素134的垫312的减压治疗系统300的示例性实施方案。在一些实施方案中,荧光素酶共价结合到垫312,如,正如描述在美国专利第4,833,075号中的。减压源128从伤口111内的感染抽取ATP进入垫312内,且ATP与荧光素酶和荧光素312反应产生光。ATP/荧光素酶/荧光素反应产生的光由包括光检测器的设备318检测,且将光测量结果经由通信连接124任选地传送至数据处理系统126。随后,数据处理系统126可以记录光测量结果。这样,设备318检测到光表明伤口111内存在ATP。
设备318显示为与盖布116整体形成。然而,设备318可以位于系统300内的任何地方,在这些地方,可以检测到来自ATP/荧光素酶/荧光素反应的光。
在一些实施方案中,系统300还包括流体连接至垫312的供给管线345以便从储器347引入荧光素酶/荧光素334。供给管线345还可以用于向伤口111提供控制感染的化合物,在这种情形中,储器347包括这样的化合物。
应该很明显,从前述内容看出,提供了具有显著优势的发明。虽然本发明仅以一些其形式显示,但是并不受到限制,而是能容许进行各种变化和修改而并不偏离本发明的主旨。
说明书中引用的所有参考文献在此通过引用并入。本文讨论的文献仅仅期望是概述作者做出的主张,而并不是承认任何参考文献构成了现有技术。申请人保留向所引用文献的准确性和恰当性进行挑战的权利。

Claims (36)

1.一种检测由伤口部位处的感染生物体引起的伤口中的感染的方法,所述方法包括:
向所述伤口部位施加减压;
响应所述减压而从所述伤口部位抽取流体;
收集从所述伤口部位抽取的流体;以及
测定从所述伤口部位收集的流体的感染产物或感染生物体的组分;
由此所述产物或所述组分的存在表明所述伤口存在感染。
2.如权利要求1所述的方法,其中所述感染生物体是细菌。
3.如权利要求1所述的方法,其中所述伤口包括选自由皮肤组织、骨组织、软骨、腱、韧带、肌肉、神经组织、皮下组织和脂肪组织组成的组的组织。
4.如权利要求1所述的方法,其中测定所述抽取的流体的感染产物。
5.如权利要求4所述的方法,其中所述感染产物是腺苷-5′-三磷酸(ATP)。
6.如权利要求5所述的方法,其中所述ATP是通过使所述抽取的流体与荧光素酶和荧光素组合,然后测量所产生的光来检测的,其中如果产生的光的水平高于来自未受感染的伤口的流体产生的水平,那么所述伤口受到感染。
7.如权利要求5所述的方法,其中量化所述ATP,其中所述抽取的流体中ATP的量逐渐增大表明所述伤口的感染逐渐严重。
8.如权利要求4所述的方法,其中所述感染产物是与炎症反应有关的宿主蛋白。
9.如权利要求8所述的方法,其中所述宿主蛋白是细胞因子、纤连蛋白片段、中性粒细胞蛋白酶或巨噬细胞蛋白酶。
10.如权利要求1所述的方法,其中测定所述抽取的流体中感染生物体的组分。
11.如权利要求10所述的方法,其中所测定的所述感染生物体的所述组分是革兰氏阴性细菌的脂多糖(LPS),其用包括使所述抽取的流体与鲎变形细胞溶解物组合的测定来检测,或通过经由补体调理的LPS-IgM免疫复合物来引发宿主中性粒细胞呼吸爆发活动的测定来检测。
12.如权利要求10所述的方法,其中所测定的所述感染生物体的所述组分是革兰氏阳性细菌的脂磷壁酸(LTA),其是用包括使所述抽取的流体与特异性结合到LTA的抗体组合,然后确定抗体是否已经结合到LTA的测定来检测。
13.如权利要求10所述的方法,其中测定所述抽取的流体中能够造成伤口感染的至少一种特定属或种的生物体的组分。
14.如权利要求13所述的方法,其中
处理所述抽取的流体以从所述感染生物体中释放DNA或RNA;
所述DNA或由所述RNA逆转录的cDNA用可检测的标记物标记并应用到对至少一种特定的生物体是特异性的至少一种固定化核酸;以及
评估所述固定化核酸以确定所述可检测的标记是否被特异性结合到其上,
其中所述可检测的标记特异性结合到所述固定化核酸表明所述伤口受到所述属或种的生物体的感染。
15.如权利要求14所述的方法,其中将所标记的DNA或cDNA应用到包括至少20个固定化核酸的微阵列,每一个核酸对能够造成伤口感染的不同属或种的生物体是特异性的。
16.如权利要求13所述的方法,其中
所述抽取的流体与对所述至少一种特定属或种的生物体是特异性的抗体或适体组合;以及
评估所述抗体或适体以确定所述抗体或适体是否结合到所述伤口的抗原或适体结合部位。
17.如权利要求16所述的方法,其中
所述抽取的流体与超过一种的抗体或适体组合,每一种抗体或适体对能够造成伤口感染的不同属或种的生物体是特异性的;以及
然后评估所述超过一种的抗体或适体以确定所述超过一种的抗体或适体中的任一种是否结合到所述伤口的抗原或适体结合部位。
18.如权利要求1所述的方法,其中从包括以下的装置施加所述减压:
减压源;
多孔的垫,其适于将所述减压传送至所述伤口部位;
盖布,其适于提供对所述垫和所述伤口部位的覆盖;和
导管,其将所述多孔的垫流体连接至所述减压源,由此响应所述减压而从所述伤口部位抽取流体。
19.如权利要求18所述的方法,其中所述装置还包括储器,所述储器适于收集所述流体。
20.如权利要求18所述的方法,其中所述多孔的垫包括荧光素酶和荧光素且所述装置还包括能够测量从所述多孔的垫发射的光的光检测器。
21.如权利要求20所述的方法,其中所述荧光素酶共价结合到所述多孔的垫上。
22.如权利要求20所述的方法,其中所述装置还包括与所述光检测器连接的计算机,其中所述计算机能够记录来自所述光检测器的光测量结果。
23.如权利要求22所述的方法,其中所述计算机还能够确定所记录的光测量结果是否表明所述伤口的感染。
24.如权利要求20所述的方法,其中所述装置还包括进入所述多孔的垫内的供给管线,以便将控制感染的化合物引入到所述伤口。
25.一种用于检测伤口部位处的伤口的感染的系统,所述系统包括:
减压源;
多孔的垫,其适于将所述减压传送至所述伤口部位;
盖布,其适于提供对所述垫和所述伤口部位的基本上气密的覆盖;
导管,其将所述多孔的垫流体连接至所述减压源,由此响应所述减压而从所述伤口部位抽取流体;以及
设备,其用于分析从所述伤口部位抽取的流体以确认感染产物或感染生物体的组分;
由此所述产物或所述组分的存在表明所述伤口存在感染。
26.如权利要求25所述的系统,其中所述设备包括光检测器且所述垫还包括荧光素酶和荧光素。
27.如权利要求26所述的系统,其中所述荧光素酶共价结合到所述垫。
28.如权利要求29所述的系统,其中所述设备包括隔室,所述隔室用于放置包括结合抗体的衬底,使得当从所述伤口抽取所述流体时,所述流体流到所述抗体上。
29.如权利要求29所述的系统,其中所述设备包括鲎变形细胞溶解物。
30.如权利要求29所述的系统,其中所述设备包括微观流体芯片、化学芯片或微阵列。
31.如权利要求30所述的系统,其中所述微观流体芯片、化学芯片或微阵列处于所述减压源中。
32.如权利要求30所述的系统,其还包括计算机,所述计算机能够记录分析结果。
33.一种多孔的垫,其适于将减压分配至伤口部位,其中所述垫包括荧光素酶。
34.如权利要求33所述的多孔的垫,其中所述荧光素酶共价结合到所述垫。
35.如权利要求33所述的多孔的垫,其还包括荧光素。
36.权利要求25所述的系统用于治疗伤口的用途。
CN200980120750XA 2008-06-04 2009-06-03 检测减压伤口治疗中的感染 Pending CN102057275A (zh)

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US9215994B2 (en) 2015-12-22
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