中国组织工程研究 ›› 2013, Vol. 17 ›› Issue (51): 8881-8886.doi: 10.3969/j.issn.2095-4344.2013.51.016

• 材料生物相容性 material biocompatibility • 上一篇    下一篇

渗透性扩张器动物体内应用的安全性研究

孙传伟1,王召旭2,陈华德1,郑少逸1,卞徽宁1,赖  文1   

  1. 1广东省医学科学院,广东省人民医院,广东省广州市  510080;2中国食品药品检定研究院,北京市  100050
  • 出版日期:2013-12-17 发布日期:2013-12-17
  • 通讯作者: 赖文,广东省人民医院,广东省医学科学院,广东省广州市 510080 laiwen@china.com
  • 作者简介:孙传伟★,男,1983年生,山东省临沂市人,汉族,2010年汕头大学医学院毕业,硕士,医师,主要从事创面修复与组织工程研究。

In vivo safety of self-filling osmotic tissue expander

Sun Chuan-wei1, Wang Zhao-xu2, Chen Hua-de1, Zheng Shao-yi1, Bian Hui-ning1, Lai Wen1   

  1. 1 Division of Burns, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou  510080, Guangdong Province, China; 2 National Institutes for Food and Drug Control, Beijing  100050, China
  • Online:2013-12-17 Published:2013-12-17
  • Contact: Lai Wen, Division of Burns, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, Guangdong Province, China laiwen@china.com
  • About author:Sun Chuan-wei★, Master, Physician, Division of Burns, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, Guangdong Province, China

摘要:

背景:渗透性扩张器是内含甲基丙烯酸甲脂和N-乙烯基吡咯烷酮吸水性凝胶的自膨胀扩张器,植入机体后可通过吸附体液而缓慢膨胀。
目的:通过大鼠皮下包埋实验,探讨渗透性扩张器在动物体内的近远期变化规律及组织相容性。
方法:设计Wistar大鼠自身对照实验,将渗透性扩张器(样品)和高密度聚乙烯(对照品)分别植入大鼠皮下,观察术后创面愈合情况,渗透性扩张器植入不同时间的扩张情况及其在大鼠体内的炎症反应。
结果与结论:所有大鼠术后创面均Ⅰ级甲等愈合;渗透性扩张器植入大鼠体内第1周膨胀速度最快,4周时可膨胀至原始体积的9倍,4周后膨胀速度逐渐减慢,至12周体积约为原始体积的10倍,而后维持此体积不变;病理切片显示,渗透性扩张器植入后的炎症反应与高密度聚乙烯组比较差异无显著性意义(P > 0.05),说明渗透性扩张器具有缓慢持久的吸水膨胀能力及良好的组织相容性。


中国组织工程研究杂志出版内容重点:生物材料;骨生物材料; 口腔生物材料; 纳米材料; 缓释材料; 材料相容性;组织工程


全文链接:

关键词: 生物材料, 材料生物相容性, 渗透性扩张器, 聚乙烯, 组织相容性, 组织缺损

Abstract:

BACKGROUND: The osmotic tissue expander is a self-filling device consisting of an osmotic active hydrogel which is made of vinylpyrrolidone and mehtylmethacrylate. It can absorb body fluids and swell up gradually after embedded.
OBJECTIVE: To explore the short-term and long-term regular patterns as well as histocompatibility of the osmotic tissue expander in vivo.
METHODS: A self-control design was carried out in Wistar rats by embedding the osmotic tissue expander and high-density polyethylene into each side of their spinal column subcutaneously. Wound healing, tissue expansion and inflammatory reaction were detected and compared at different periods after operation.
RESULTS AND CONCLUSION: All the wounds got primary healing. The device expanded fastest at week 1 after the implantation. After being enlarged to about nine times that of the initial size at week 4, the expander slowed down its swelling. It reached its ultimate volume at week 12 which was about 10 times as big as that of the initial one. Then it remained almost the same size until the end of our design. Pathological sections showed that the inflammatory reaction of osmotic-tissue-expander-group had no significant difference from that of the control group (P > 0.05). These findings suggest that osmotic tissue expander has a slow-lasting swelling ability and good histocompatibility.


中国组织工程研究杂志出版内容重点:生物材料;骨生物材料; 口腔生物材料; 纳米材料; 缓释材料; 材料相容性;组织工程


全文链接:

Key words: biocompatible materials, polyethylene, histocompatibility, silicone elastomers

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