目的:探讨生物敷料Ⅱ型(脱细胞猪皮)作为肉芽创面小皮片移植后覆盖物的临床效果。方法:22例肉芽创面植皮患者,肉芽创面总面积为5%~8%TBSA,随机分为观察组和对照组。肉芽创面在小皮片移植后应用生物敷料Ⅱ型覆盖为观察组,以凡士林纱布...目的:探讨生物敷料Ⅱ型(脱细胞猪皮)作为肉芽创面小皮片移植后覆盖物的临床效果。方法:22例肉芽创面植皮患者,肉芽创面总面积为5%~8%TBSA,随机分为观察组和对照组。肉芽创面在小皮片移植后应用生物敷料Ⅱ型覆盖为观察组,以凡士林纱布覆盖为对照组,两组各11例。以视觉模拟评分(VAS评分)作为疼痛评分,比较两组术后第5天换药前和换药后30 min疼痛评分、平均换药次数、平均愈合时间;两组创面愈后予以相同的瘢痕康复治疗及功能锻炼,创面愈合后3个月采用温哥华瘢痕评分量表(VSS)评价瘢痕增生情况。结果:术后第5天首次换药,换药前30 min VAS评分:观察组(2.63±0.67)分,对照组(3.54±1.21)分;换药后30 min VAS评分:观察组(3.09±1.13)分,对照组(7.63±0.92)分;观察组换药前、后VAS评分均明显低于对照组(P<0.05);观察组换药次数(5.27±1.19)次,对照组为(10.27±2.79)次,观察组换药次数明显少于对照组(P<0.05);观察组愈合时间为(13.09±3.20)d,对照组为(19.27±2.32)d,观察组创面愈合时间明显缩短(P<0.05);创面愈合后3个月瘢痕VSS评分,观察组:色泽(1.90±0.70)分,血管分布(1.63±0.67)分,厚度(2.36±0.80)分,柔软度(2.72±0.78)分,对照组分别为(3.18±0.87)、(2.36±0.67)、(3.27±0.64)、(4.00±0.89)分,观察组明显优于对照组(P<0.05)。结论:与传统的凡士林纱布相比,生物敷料Ⅱ型作为肉芽创面小皮片移植后覆盖物可以减轻患者植皮术后的换药疼痛、减少换药次数、加快创面的愈合、减轻瘢痕增生,效果良好。展开更多
The preparation of lead-free thick-film resistors are reported:using RuO 2 and ruthenates as conductive particles,glass powders composed of B 2 O 3,SiO 2,CaO and Al2 O 3 as insulating phase,adding organic matter which...The preparation of lead-free thick-film resistors are reported:using RuO 2 and ruthenates as conductive particles,glass powders composed of B 2 O 3,SiO 2,CaO and Al2 O 3 as insulating phase,adding organic matter which mainly consists of ethyl cellulose and terpineol to form printable pastes.Resistors were fabricated and sintered by conventional screen-printing on 96%Al 2 O 3 substrates,and then sintering in a belt furnace.X-ray diffraction(XRD) and electron scanning microscopy(SEM) have been used to characterize the conductive particles.The resistors exhibit good refiring stability and low temperature coefficient of resistance.Sheet resistance spans from about 80Ω/□ to 600Ω/□.The resistors prepared are qualified for common use.展开更多
文摘目的:探讨生物敷料Ⅱ型(脱细胞猪皮)作为肉芽创面小皮片移植后覆盖物的临床效果。方法:22例肉芽创面植皮患者,肉芽创面总面积为5%~8%TBSA,随机分为观察组和对照组。肉芽创面在小皮片移植后应用生物敷料Ⅱ型覆盖为观察组,以凡士林纱布覆盖为对照组,两组各11例。以视觉模拟评分(VAS评分)作为疼痛评分,比较两组术后第5天换药前和换药后30 min疼痛评分、平均换药次数、平均愈合时间;两组创面愈后予以相同的瘢痕康复治疗及功能锻炼,创面愈合后3个月采用温哥华瘢痕评分量表(VSS)评价瘢痕增生情况。结果:术后第5天首次换药,换药前30 min VAS评分:观察组(2.63±0.67)分,对照组(3.54±1.21)分;换药后30 min VAS评分:观察组(3.09±1.13)分,对照组(7.63±0.92)分;观察组换药前、后VAS评分均明显低于对照组(P<0.05);观察组换药次数(5.27±1.19)次,对照组为(10.27±2.79)次,观察组换药次数明显少于对照组(P<0.05);观察组愈合时间为(13.09±3.20)d,对照组为(19.27±2.32)d,观察组创面愈合时间明显缩短(P<0.05);创面愈合后3个月瘢痕VSS评分,观察组:色泽(1.90±0.70)分,血管分布(1.63±0.67)分,厚度(2.36±0.80)分,柔软度(2.72±0.78)分,对照组分别为(3.18±0.87)、(2.36±0.67)、(3.27±0.64)、(4.00±0.89)分,观察组明显优于对照组(P<0.05)。结论:与传统的凡士林纱布相比,生物敷料Ⅱ型作为肉芽创面小皮片移植后覆盖物可以减轻患者植皮术后的换药疼痛、减少换药次数、加快创面的愈合、减轻瘢痕增生,效果良好。
基金The fund of the State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals(SKL-SPM-201532)Development & Industrialization of Buried Conductive and Via-Fill gold pastes used on LTCC Substrate(2015IA035)Key Technologies of Preparing LTCC Electronic Pastes and Their Industrial Applications(2015020211)
基金The Fund of the State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals(No.SKL-SPM-201532)Key Technologies of Preparing LTCC Electronic Pastes and Their Industrial Applications(No.2015020211)Development&Industrialization of Precious Metal Pastes Used in Integrated Chip Components(No.2016020201)
文摘The preparation of lead-free thick-film resistors are reported:using RuO 2 and ruthenates as conductive particles,glass powders composed of B 2 O 3,SiO 2,CaO and Al2 O 3 as insulating phase,adding organic matter which mainly consists of ethyl cellulose and terpineol to form printable pastes.Resistors were fabricated and sintered by conventional screen-printing on 96%Al 2 O 3 substrates,and then sintering in a belt furnace.X-ray diffraction(XRD) and electron scanning microscopy(SEM) have been used to characterize the conductive particles.The resistors exhibit good refiring stability and low temperature coefficient of resistance.Sheet resistance spans from about 80Ω/□ to 600Ω/□.The resistors prepared are qualified for common use.