中国组织工程研究 ›› 2014, Vol. 18 ›› Issue (52): 8487-8490.doi: 10.3969/j.issn.2095-4344.2014.52.022

• 材料力学及表面改性 material mechanics and surface modification • 上一篇    下一篇

新型可降解吻合夹吻合血管的生物力学特点

张 穹,许硕贵   

  1. 解放军第二军医大学长海医院,上海市 200433
  • 修回日期:2014-10-03 出版日期:2014-12-17 发布日期:2014-12-17
  • 通讯作者: 许硕贵,副教授,解放军第二军医大学长海医院,上海市 200433
  • 作者简介:张穹,解放军第二军医大学长海医院,上海市 200433

Biodynamic properties of vascular anastomosis using a new-type degradable anastomosis clip

Zhang Qiong, Xu Shuo-gui   

  1. Changhai Hospital, Second Military Medical University of PLA, Shanghai 200433, China
  • Revised:2014-10-03 Online:2014-12-17 Published:2014-12-17
  • Contact: Xu Shuo-gui, Associate professor, Changhai Hospital, Second Military Medical University of PLA, Shanghai 200433, China
  • About author:Zhang Qiong, Changhai Hospital, Second Military Medical University of PLA, Shanghai 200433, China

摘要:

背景:目前国内外应用于临床的血管吻合器均可以克服传统血管吻合方法操作复杂、吻合时间长和内膜损伤等严重缺陷。但其不可吸收的针环影响了吻合口处血管正常收缩与舒张的生理功能,从而限制血管的生长,不适宜未成年患者。

目的:分析新型可降解的吻合夹吻合血管的生物力学特点。
方法:剪断新西兰大白兔双侧颈静脉,一侧应用新型可完全降解的吻合夹吻合,另一侧行针线吻合对照,测定术后当天,第7,14,30天时离体血管吻合口的平均破裂压。
结果与结论:吻合夹组吻合时间短于针线吻合法(P < 0.05),吻合夹组平均破裂压与针线吻合法组比较差异无显著性意义(P > 0.05)。生物力学表明新型可降解的吻合夹安全可靠。

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, 材料相容性, 血管吻合器, 可吸收套管, 材料力学及表面性, 可降解材料, 聚乳酸, 破裂压, 生物力学

Abstract:

BACKGROUND: vailable anastomats appear to overcome the deficiencies of traditional anastomotic methods, such as complex operation, long time for vascular anastomosis and severe intimal injury. However, their nonabsorbable needling rings impact the normal diastolic and systolic of the blood vessels at anastomotic sites, thus limiting the growth of blood vessels, which is not suitable for minor patients.

OBJECTIVE: To analyze the biomechanical characteristics of vascular anastomosis with a new-type degradable anastomosis chip.
METHODS: Bilateral jugular veins of New Zealand rabbits were cut: one side was anastomosed using a new type degradable anastomosis chip, and the other side was anastomosed with sutures as control. The average maximal breaking pressure was measured at the 1st day, 7th day, 14th day, and 30th day after operation.
RESULTS AND CONCLUSION: The anastomosis time using the anastomosis chip was lower than that using sutures (P < 0.05), and the average maximal breaking pressure exhibited no difference between the two groups (P < 0.05). It indicates that the new-type degradable anastomosis chip is safe and reliable.

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, absorbable implants, biomechanics

中图分类号: