简介: [ 摘要 ] 目的 探讨记忆合金肋骨环抱器治疗多发性肋骨骨折的临床效果。方法 选取 2016 年 2 月~ 2019 年 2 月我院骨科收治的 102 例多发性肋骨骨折患者作为研究对象,根据随机数字表法分为对照组与观察组,每组各 51 例。对照组患者采用常规保守治疗,观察组患者采用记忆合金肋骨环抱器治疗,比较两组患者的骨折恢复效果、各项恢复指标、并發症总发生率、疼痛及肺功能情况。结果 观察组患者的治疗优良率为 96.08% ,高于对照组的 80.39% ,差异有统计学意义( P<0.05 ) ; 观察组患者的呼吸频率恢复时间、动脉血氧饱和度( SaO2 )恢复时间、胸痛缓解时间、住院时间、骨折愈合时间均短于对照组,差异有统计学意义( P<0.05 ) ; 观察组患者的并发症总发生率低于对照组,差异有统计学意义( P<0.05 ) ; 观察组患者治疗后的视觉模拟量表( VAS )评分低于对照组,每分钟最大通气量百分比( MVV% )高于对照组,差异有统计学意义( P<0.05 )。结论 记忆合金肋骨环抱器治疗多发性肋骨骨折的临床效果显著,能够有效缩短胸痛持续时间,加快呼吸功能的恢复,促进骨折的早期愈合,降低并发症发生率,具有积极的临床意义。 [ 关键词 ] 多发性肋骨骨折 ; 记忆合金肋骨环抱器 ; 临床效果 [Abstract] Objective To investigate the clinical effect of memory alloy rib encircling device in the treatment of multiple rib fractures. Methods From February 2016 to February 2019 , 102 patients with multiple rib fractures treated in orthopaedic department of our hospital were selected as the subjects , and divided into control group and observation group by random number table method , with 51 cases in each group. The control group used conventional conservative treatment , and the observation group given memory alloy frame around treatment. The recovery effect of fracture , the recovery index , total incidence of complications , pain and pulmonary function were compared between the two groups. Results The rate of excellent and good treatment was 96.08% , higher than 80.39% in the control group , and the difference was statistically significant ( P<0.05 ) . The recovery time of respiratory rate , arterial oxygen saturation ( SaO2 ) recovery time , chest pain relief time , hospitalization time and fracture healing time in the observation group were shorter than those in the control group , and the differences were statistically significant ( P<0.05 ) . The total incidence of complications in the observation group was lower than that in the control group , and the difference was statistically significant ( P<0.05 ) . After treatment , the visual analogue scale ( VAS ) score in the observation group was lower than that in the control group , and the percentage of maximum ventilation per minute ( MVV% ) in the observation group was higher than that in the control group , the differences were statistically significant ( P<0.05 ) . Conclusion The memory alloy rib enclasp has significant clinical effect in the treatment of multiple rib fractures , which can effectively shorten the duration of chest pain , accelerate the recovery of respiratory function , promote the early healing of fractures and reduce the incidence of complications , and has positive clinical significance.
简介:摘要:巴氏合金作为传统的轴瓦材料,其具有良好的顺应性、耐蚀性和耐磨性。但是,由于巴氏合金质地相对较软,需要与强度较高的基材进行复合,才能够作为轴承衬套使用在工业制造中。传统的巴氏合金轴瓦制备方式多为离心浇铸,此类巴氏合金轴瓦偏析严重,组织粗大,结合强度低且极易发生脱落。各种缺陷如气孔、疏松等也经常出现在离心浇铸的巴氏合金轴瓦产品中。铝合金材料由于其自身质量小,且耐蚀性能优良,在加工时成形性能好,同时某些铝合金的导电导热性也比较好,因此被广泛应用在航空航天以及各类动力交通领域中。文中选用铝合金材料为基材,利用 MIG焊工艺,在铝合金表面堆焊巴氏合金层,系统地研究在其他焊接工艺参数(如焊接电流、电弧电压等)不变的情况下,焊接速度对结合界面的显微组织、力学性能等问题的影响。
简介:摘要:综述镁合金的特点及其在交通、航空航天、兵器方面的应用情况,并结合兵器零件的使用特点和性能要求,分析了镁合金在兵器装备中的应用前景,展望了镁合金的发展方向。