儿童X线防护床模型设计及在婴幼儿X线检查中的应用

目的：探讨自制儿童X线防护床模型在婴幼儿X线检查中的作用.方法：选取需要进行X线摄像的0～1岁婴幼儿200例,随机分为干预组（应用自制儿童X线防护床模型）和对照组.干预组婴幼儿在进行X线检查前被放置在自制儿童X线防护床模型中,令其对检查床模型进行充分的适应,对照组直接进行X线检查.比较2组一次性检查成功率、患儿家属满意度和一次成功投照所需的平均对间.结果：干预组婴幼儿X线检查一次性成功率（97％）和患儿家属满意度（98％）显著高于对照组（P＜0.01）,干预组一次成功投照所需的平均时间明显少于对照组（P＜0.01）.结论：在进行放射投照前应用X线防护床模型可使患儿适应X线投照环境,明显减少完成一次成功投照所需要的时间,大大地提高了一次性投照成功率,有效地减少了重复投照的次数,减少了放射线对婴幼儿的损害,可提高放射科的工作效率.因此,非常值得在实际工作中推广和使用.

地震被动防护床的设计与仿真

地震被动防护床的设计过程历经概念形成、功能目标分析、CAD绘图表达方案、三维实体装配图实现数字样机、运动仿真发现干涉、提出解决干涉的思路方法等步骤。经过仿真修正的数字样机为物理样机试制提供零件尺寸、零件结构、装配关系等要素,为制造物理样机做了准备。

医用诊断多功能摄片防护床的研制及防护性能

随着医学的发展,X射线检查已成为临床诊断的主要技术手段,然而X射线对人体的潜在危害已引起人们极大关注。除了加强放射工作人员的防护外,对受检者也应采取必要的防护措施。为此我们研制了“YDCH-Ⅰ型医用诊断多功能摄片防护床”,现简介如下:

压疮防护床在使用中遇到的常见问题及改进措施

目的:解决压疮防护床使用过程中出现的问题。方法:针对各种原因作出不同的解决办法。

固定防护漏斗式洗胃床的研制

洗胃是抢救中毒病人的有力措施。对于清醒病人要经常说明洗胃的重要性及要求配合的注意事项，多安慰、鼓励病人即可得到主动积极的合作．为抢救赢得时机；但大多数洗胃病人抢救时常为半清醒抵触状态或昏迷谵狂状态．需要多个人员配合才能顺利进行，给此类病人洗胃时医护人员容易受伤；另外，在临床洗胃时。

An investigation into the occupational protection status of clinical nursing staff exposed to anti-tumor drugs

Objective:To investigate the occupational protection status of clinical nursing staff vocationally exposed to anti-tumor drugs.Methods:A self-designed questionnaire was used to survey 180 clinical nursing staff vocationally exposed to anti-tumor drugs.Results:Recognition of the need for protection and dependent occupational protection behaviors were very poor in clinical nursing staff vocationally exposed to anti-tumor drugs.The management of the occupational protection of clinical nursing staff vocationally exposed to anti-tumor drugs was also seriously underdeveloped.Conclusion:There is deficiency in the understanding and related protection practices of clinical nursing staff vocationally exposed to anti-tumor drugs in our hospital.The protection measures currently employed in medical practice are inadequate in virtually every aspect considered.It is recommended that all clinical nursing staff should receive full occupational protection training in these matters.The training must raise nursing staff's awareness of the need for occupational protection and standardize their occupational protection behaviors to conform to "best practice" models.These "best practice" models should be quickly established and all staff made cognizant of them forthwith.In addition,where occupational protection systems are already in place,they should be improved to come into line with the new "best practice" models instigated.

Imperfect preventive maintenance for numerical control machine tools with log-linear virtual age process

Based on the log-linear virtual age process, an imperfect preventive maintenance policy for numerical control(NC)machine tools with random maintenance quality is proposed. The proposed model is a combination of the Kijima type virtual age model and the failure intensity adjustment model. Maintenance intervals of the proposed hybrid model are derived when the failure intensity increase factor and the restoration factor are both random variables with uniform distribution. The optimal maintenance policy in infinite time horizon is presented. A numerical example is given when the failures of NC machine tools are described by the log-linear process. Finally, a discussion is presented to show how the optimal results depend on the different cost parameters.

3种添加配方奶的喂养方式对促进母乳喂养的影响

目的:探讨3种添加配方奶的喂养方式对促进母乳喂养的影响。方法:将出生3天内的300例剖宫产术后有添加配方奶指征的新生儿随机分为3组,观察(100例)新生儿用母乳喂养促进器喂养,对照组1(100例)新生儿用奶瓶喂养,对照组2(100例)新生儿用小勺喂养;比较新生儿产生乳头错觉的情况、产妇母乳充盈的时间、发生产妇奶胀的情况。结果:观察组新生儿产生乳头错觉3例、产妇母乳充盈的时间术后42小时、产妇奶胀4例;对照组1新生儿产生乳头错觉32例、产妇母乳充盈的时间术后66小时,产妇奶胀38例;对照组2新生儿产生乳头错觉84例、产妇母乳充盈的时间术后72小时,产妇奶胀78例。结论:用母乳喂养促进器喂养明显优于用奶瓶喂养及小勺喂养,新生儿产生乳头错觉极低,母乳充盈的时间较短,产奶较快,产妇奶胀的发生率低(P<0.01),可增强产妇母乳喂养的信心,有效地促进母乳喂养的成功。