中国组织工程研究 ›› 2017, Vol. 21 ›› Issue (20): 3196-3201.doi: 10.3969/j.issn.2095-4344.2017.20.014

• 组织构建实验造模 experimental modeling in tissue construction • 上一篇    下一篇

一种基于动物实验多功能撞击仪的研制及应用

王海林,肖和达,张  生,江宗兴,刘卫辉,汤礼军,戴睿武   

  1. 解放军成都军区总医院全军普外中心,四川省成都市  610083
  • 修回日期:2017-04-21 出版日期:2017-07-18 发布日期:2017-07-28
  • 通讯作者: 戴睿武,博士,副主任医师,副教授,硕士生导师,解放军成都军区总医院全军普外中心,四川省成都市 610083
  • 作者简介:王海林,男,1990年生,四川省南充市人,汉族,硕士,主要从事普通外科的基础与临床研究。
  • 基金资助:

    国家自然科学基金(81001695);四川省科技厅应用基础研究课题(2013JY0046)

Development and application of a multifunctional impactor based on animal experiments

Wang Hai-lin, Xiao He-da, Zhang Sheng, Jiang Zong-xing, Liu Wei-hui, Tang Li-jun, Dai Rui-wu   

  1. PLA Center of General Surgery, General Hospital of Chengdu Military Region of Chinese PLA, Chengdu 610083, Sichuan Province, China
  • Revised:2017-04-21 Online:2017-07-18 Published:2017-07-28
  • Contact: Dai Rui-wu, M.D., Associate chief physician, Associate professor, Master’s supervisor, PLA Center of General Surgery, General Hospital of Chengdu Military Region of Chinese PLA, Chengdu 610083, Sichuan Province, China
  • About author:Wang Hai-lin, Master, PLA Center of General Surgery, General Hospital of Chengdu Military Region of Chinese PLA, Chengdu 610083, Sichuan Province, China
  • Supported by:

    the National Natural Science Foundation of China, No. 81001695; the Basic Application Research Project of Science and Technology Department of Sichuan Province, No. 2013JY0046

摘要:

文章快速阅读:

文题释义:
撞击参数测量装置:
由测力传感器探头、显示仪表、24 V稳压电源及其他附属构件组成。其工作原理是:测力传感器根据植入硅片的压电电阻在受到外力而挠曲时电阻会增加,其电阻值随施加力的大小成比例变化,进而使电流输出也相应变化,经数据转化后的力学参数在显示仪表中显示,实现撞击参数的精准测量。
储能换能装置:由各力学参数的压缩弹簧、含橡胶垫顶盖、带刻度尺柱体、支架和底座等构件组成。其作用是将弹簧压缩产生的弹性势能转换为撞击头的撞击动能,作为撞击仪稳定、精准的动力组件。

 

摘要
背景:
目前有文献报道了一些用来研究创伤的仪器设备,但是鉴于这些设备自身适用范围有限,不利于创伤动物模型的建立。
目的:研制一种多功能动物撞击系统并评估其初步使用效果,为动物实验创伤建模及基础研究提供支撑。 
方法:多功能动物撞击系统基于储能换能装置、简便式多功能撞击装置、撞击参数测量装置等三大部件的原理设计,并对其有效性和稳定性检验。采用撞击仪预设定不同撞击参数(200,300,400,500 kPa)并选择5 cm2撞击头对大鼠胸、腹部不同部位器官实施闭合撞击实验并立即记录撞击力数据。各部位不同撞击参数下随机选择3只大鼠实行撞击操作,随后处死大鼠以解剖观察。

结果与结论:①成功地研制出该多功能撞击仪,其撞击应力峰值连续可调节且量程在0-200 kg,压缩和挤压应力连续可调节且量程在0-100 kg;②动物实验表明仪器能够造成大鼠肺、肝、脾等器官不同程度的组织损伤,验证了该仪器具有良好的有效性(P< 0.05)和可重复性(P> 0.05);③结果说明,撞击仪操作简单,撞击方式多样,撞击参数可被实时记录;经过调试和动物实验,效果显著且性能稳定,可对不同实验动物形成不同强度和方式的创伤。适用于撞击伤的建模和有关基础研究。

 

 

ORCID: 0000-0002-0406-6299(王海林)

关键词: 组织构建, 组织工程, 撞击系统, 力学参数, 创伤模型, 应力, 国家自然科学基金

Abstract:

BACKGROUND: A few devices have been reported to be used for studies on trauma, but these devices are unavailable for establishing the animal models of trauma because of their limited application range.

OBJECTIVE: To develop a multifunctional impact system and evaluate its application effect, thus paying ways for establishing the animal models of trauma and basic experiments.
METHODS: The multifunctional impact system was designed based on the theory of energy storage device, simple multifunctional impact device and impact parameter measuring equipment, and its effectiveness and stability were detected. The rat chest and different visceral organs were subjected to the closed impact experiment using a 5 cm2 impact at the predetermined parameter of 200, 300, 400, 500 kPa, respectively. Afterwards, the rats were sacrificed for morphological observation.

RESULTS AND CONCLUSION: The multifunctional impactor was successfully developed, of which the maximum impact stress could be adjusted from 0 to 200 kg and compressive and extrusion stress also could be continuously adjusted from 0 to 100 kg. The experimental results showed that the impactor made certain damage to the rat lung, liver and spleen suggesting its favorable effectiveness (P < 0.05) and repeatability (P > 0.05). These findings suggest that the impactor is easy to operate in various ways and holds good effectiveness and stability, and its impact parameters can be detected in real time. Therefore, the impactor is suitable for both establishing the animal model of trauma and basic experiments.

 

 

Key words: Wounds and Injuries, Mechanics, Stress, Mechanical, Tissue Engineering

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