颌骨囊肿的灌洗治疗-附18例临床分析

颌骨囊肿是口腔颌面外科常见疾病之一 ,以手术治疗为主。我院自 1994年 10月至今 ,应用药物灌洗治疗颌骨囊肿18例 ,疗效满意 ,现报告如下。1　材料与方法1.1　一般资料本组 18例中 ,上颌骨 13例 ,下颌骨 3例。男性 12例 ,女性 6例 ;年龄 13～ 4 8岁。根尖囊肿 5例 ,含牙囊肿 6例 ,鼻腭管和腭正中囊肿 4例 ,角化囊肿 3例 ,所有诊断依据临床和Ｘ线所见得出 ,并经病理检查证实。所选病例均为单囊型。1.2　方法将注射器刺入囊腔、抽吸囊液 ,反复用 5 %葡萄糖液冲洗囊腔 ,至抽出液清亮后 ,将 0 .5 %甲硝唑液作为留置液注入囊腔 ,并施加少许压力 ,…     

低血钾患者应用超声雾化吸入补钾的疗效观察

试用了人体经气道补钾的新途径，证实经气道补钾可有效提高血钾浓度，与静脉滴注无差异。由于经气道给入，使临床上早期呼吸肌麻痹能及时缓解。临床应用中无任何副作用     

持续静脉输注吗啡用于腹部手术后的镇痛效果

应用微量输液泵持续静脉输注吗啡（ＣＩＭ）进行腹部手术后镇痛的前瞻性临床研究，４０例腹部大中手术患者随机分入两组，实验组接受ＣＩＭ法镇痛，对照组采用常规间断肌注哌啶镇痛（ＩＭＰ）。实验组２０例术后２４ｈ内镇痛效果均达Ⅰ～Ⅱ级，而对照组肌注哌啶后２ｈ内有７０％患者达Ⅰ～Ⅱ级，仅１０％患者在肌注２ｈ后仍保持Ⅰ～Ⅱ级的镇痛效果。实验、对照组患者术后２４ｈ睡眠时间分别为６．２±１．９ｈ和４．０±１．２ｈ（Ｐ＜０．０１）。ＣＩＭ法术后肠道通气时间短于ＩＭＰ法，分别为５４±１３ｈ和６６±１１ｈ（Ｐ＜０．０１）。两组呼吸频率、心率、血压、ＳｐＯ＿２等无明显差别。结果表明，微量泵持续静脉输注吗啡法镇痛效果优于常规方法，是一种简便、安全、有效的术后镇痛方法。     

Taguchi S/N and TOPSIS Based Optimization of Fused Deposition Modelling and Vapor Finishing Process for Manufacturing of ABS Plastic Parts

Despite several additive manufacturing techniques are commercially available in market, Fused Deposition Modeling (FDM) is increasingly used by researchers and engineers for new product development. FDM is an established process with a plethora of advantages, but the visible surface roughness (SR), being an intrinsic limitation, is major barrier against utilization of fabricated parts for practical applications. In the present study, the chemical finishing method, using vapour of acetone mixed with heated air, is being used. The combined impact of orientation angle, finishing temperature and finishing time has been studied using Taguchi and ANOVA, whereas multi-criteria optimization is performed using the Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS). The surface finish was highly responsive to increase in temperature while orientation angle of 0° yielded maximum strength; increase in finishing time led to weight gain of FDM parts. As the temperature increases, the percentage change in surface roughness increases as higher temperature assists the melt down process. On the other hand, anisotropic behaviour plays a major role during tensile testing. The Signal-to-noise (S/N) ratio plots, and ANOVA results indicated that surface finish is directly proportionate to finishing time because a longer exposure results in complete layer reflowing and settlement.