Development of device to estimate the mismatch of mechanical property in arterial anastomosis

动脉吻合中机械性能失配评估装置的开发

• 批准号: 06671179
• 负责人: OKUMA Tsuneo
• 金额: $ 1.34万
• 依托单位: TOHOKU UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1994
• 资助国家: 日本
• 起止时间: 1994 至 1995
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-06671179/
• 关键词: mechanical property; anastomosis; compliance mismatching; B-made ultrasonic; 動脈硬化; 超音波エコーリンアスキャン; 血管壁物性計測; 超音波ドップラー; 血管壁粘弾性; 動脈硬化病変; 人工血管

1.Development of measurement device and analysis systemWe enabled the assessment of mechanical property of artery in multiple sampling points at a surface artery segment with B-mode ultrasonic liner scan probe which improved the control system. Doppler signals of multiple sampling points are recorded simultaneously and reproduced on computer system, then we obtained the data which enable to detect the compliance mismatching of mechanical property in arterial anastomosis. We obtain the property by calculating the data of each sampling point, and estimate the multiple point result as a continuous change of property at anastomosis.2.Estimation of results and clinical useFor clinical use we established safety and stability of the apparatus to estimate arterial property at anasomosis of patients who operated arterial bypass. We found the difference of property between proximal and distal site of anastomosis in clinical case, that is affected by atherosclerotic change in some degree. To establish the relationship between compliance mismatching of anastomosis and intimal hyperplasia we need long term follow up with clinical examination such as angography. So we have not achieved the purpose yet, but following long term examination will lead us to the conclusion.

1.测量设备和分析系统We的开发使用B模式超声超声衬里扫描探针在表面动脉段的多个采样点中评估动脉的机械性能，从而改善了控制系统。同时记录了多个采样点的多普勒信号并在计算机系统上再现，然后我们获得了能够检测动脉吻合中机械性能的合规性不匹配的数据。我们通过计算每个采样点的数据来获得该性质，并将多点结果估计为吻合术时性质的持续变化。2。估计结果和临床使用的临床使用，我们确定了设备的安全性和稳定性，以估算手术动脉旁路患者的厌氧性动脉特性。我们发现临床病例中吻合术的近端和远端位点之间的性质差异，在某种程度上受动脉粥样硬化的变化影响。为了确定吻合不匹配和内膜增生之间的依从性之间的关系，我们需要长期跟进临床检查，例如人为造影。因此，我们尚未实现这一目的，但是在长期检查之后将导致我们得出结论。