Development of a smart endoscope system with extra-wide view as well as local curing treatments

开发具有超宽视野和局部固化治疗的智能内窥镜系统

基本信息

  • 批准号:
    13355009
  • 负责人:
  • 金额:
    $ 19.3万
  • 依托单位:
  • 依托单位国家:
    日本
  • 项目类别:
    Grant-in-Aid for Scientific Research (A)
  • 财政年份:
    2001
  • 资助国家:
    日本
  • 起止时间:
    2001 至 2003
  • 项目状态:
    已结题

项目摘要

An endoscope, "Smart and Ultra-fine Catheter" Endoscope with Extra-Wide View and Local Curing Treatments" was developed to observe the lesions deep in the human body where exact examinations using conventional methods had been impossible because of their location. Ultrasound generated by a transducer located outside of the human body is transmitted into the region of interest using a specially designed flexible transmission line composed of a thin quartz fiber. The Ultra-fine Catheter is flexible and can easily bended according to the curvature of the tube-like structures of the human body, i.e.urinary tract or digestive organs. It can be inserted into the organs without hazard by combination use of palpation sensors mounted at the very tip of endoscope.The main results of the project are as follows.1.For medical application of shape memory alloy(SMA) actuator, we investigated the TiNiCu alloy thin foils by rapid-spolidification(RS) technique and discovered RS/Ti50Ni50-xCux(X=8-17at%) … More alloy has very narrow temperature hysteresis within 10℃ and rapid response speed in one thermal cycle near body temperature(=36℃).2.We developed a rapid-solidified giant magnetostrictive Fe-29.6at% alloy foil having about 600 micro-strain at 0.5Tesla as a non contact type actuator controllable by magnetic field.3.A sensor to display the contact condition between the catheter and the body structures was developed. The sensor is composed of synthetic rubber layers and three strain gauges. The sensor at the very tip of the catheter is 12mm in external diameter and 15mm in length. The equation relating the contact condition to the output of sensor is formulated by using three gauge outputs. The obtained results correlated well with the estimated information from the initial applied condition.4.A flexible transmission line was developed, which allows transmission of ultrasound without loss of energy at the frequency range of 2MHz to 20MHz. The transmission line exhibits considerable dispersion, as that used for the FM chirp pulse compressive system.5.An efficient method to transmit ultrasonic wave to the transmission line was developed. A quarter wave length region was formed at the both end of the transmission line. Ultrasonic wave was coupled to the transmission line using an elliptical mirror.6.AB-mode imaging system for intraluminal ultrasonography using the pulse compression method was developed. The developed transmission line is used to separate the transmitting and receiving signals in the system. To focus the ultrasonic beam onto a target, an elliptical mirror is also used.4.An algorithm to demonstrate three-dimentional display of the image obtained by the system was also developed.8.The above-mentioned fruitful results allows us to design and fabricate the micro active endoscope for developing smart catheter with extra-wide view and Local curing treatments. Less
开发了一种内窥镜,“智能和超细导管”内窥镜,具有超宽视野和局部治疗”,用于观察人体深处的病变,这些病变由于其位置而无法使用传统方法进行精确检查。由位于人体外部的换能器产生的超声波通过由细石英纤维组成的特殊设计的柔性传输线传输到感兴趣的区域。超细导尿管是柔性的,可以根据人体的管状结构(如泌尿道或消化器官)的曲率轻松弯曲。通过与安装在内窥镜最尖端的触诊传感器的组合使用,它可以安全地插入器官。本项目的主要成果如下:在形状记忆合金(SMA)致动器的医疗应用中,我们采用快速蒸发(RS)技术对TiNiCu合金薄箔进行了研究,发现RS/Ti50Ni50-xCux(X=8-17at%),该合金在10℃以内具有非常窄的温度滞后,在接近体温(=36℃)的一个热循环中响应速度很快。研制了一种快速凝固的超磁致伸缩Fe-29.6at%合金箔,在0.5特斯拉下具有600微应变,可作为磁场可控的非接触式致动器。研制了一种用于显示导管与人体结构接触情况的传感器。该传感器由合成橡胶层和三个应变片组成。导管最尖端的传感器外径12mm,长度15mm。利用三个量规输出,建立了接触条件与传感器输出的关系式。所得结果与初始应用条件下的估计信息具有较好的相关性。开发了一种灵活的传输线,可以在2MHz至20MHz的频率范围内传输超声波而不损失能量。传输线表现出相当大的色散,就像用于调频啁啾脉冲压缩系统一样。提出了一种将超声波传输到传输线的有效方法。在传输线两端形成1 / 4波长区域。利用椭圆镜将超声波耦合到传输线上。研制了一种基于脉冲压缩法的腔内超声ab模式成像系统。所设计的传输线用于分离系统的收发信号。为了将超声波光束聚焦到目标上,还使用了椭圆镜。同时,提出了一种对系统所获得的图像进行三维显示的算法。上述成果使我们能够设计和制造微型主动内窥镜,用于开发具有超宽视野和局部固化治疗的智能导管。少

项目成果

期刊论文数量(65)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
T.Okazaki, H.Nakajima, Y.Furuya: "Large Magnetostriction of Fe-29.6at%Pd Alloy Ribbon under Tensile Stress"Mater.Traps.JIM.. 44. 665-668 (2003)
T.冈崎,%20H.Nakajima,%20Y.Furuya:%20“大%20磁致伸缩%20of%20Fe-29.6at%Pd%20合金%20Ribbon%20under%20Tensile%20Stress”Mater.Traps.JIM..%2044。
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M.Sato, T.Okazaki, Y.Furuya, M.Wuttig: "Magnetostrictive and Shape Memory Properties of Heusler Type Co_2NiGa Alloy"Mater.Trans.JIM.. 44. 372-376 (2003)
M.Sato、T.Okazaki、Y.Furuya、M.Wuttig:“Heusler 型 Co_2NiGa 合金的磁致伸缩和形状记忆性能”Mater.Trans.JIM.. 44. 372-376 (2003)
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Wang F, Tanaka M, Chonan S, Furuya Y: "Development of a PVDF piezopolymer sensor for unconstrained in-sleep cardiorespiratory monitoring"Journal of Intelligent Material Systems and Structures. 14. 185-190 (2003)
Wang F、Tanaka M、Chonan S、Furuya Y:“用于无约束睡眠心肺监测的 PVDF 压电聚合物传感器的开发”智能材料系统与结构杂志。
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    0
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山平傑, 新矢喜章, 田本静香, 相場満, 喜瀬純男, 古屋泰文: "官能型TiNi系急冷凝固ファイバの形状記憶特性"日本金属学会誌. 66. 909-912 (2002)
Suguru Yamahira、Yoshiaki Araya、Shizuka Tamoto、Mitsuru Aiba、Sumio Kise、Yasufumi Furuya:“功能化 TiNi 基快速凝固纤维的形状记忆特性”日本金属学会学报 66. 909-912 (2002)。
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T.Okazaki, Y.Furuya: "Developments of New Thermo-and Magneto-elastic Metallic Sensor/Avtuator Mataerials by Controlling Microstructures by Raid-Solidification"Materiaux et Techniques. (in press). 3-3 (2003)
T.Okazaki、Y.Furuya:“通过 Raid-Solidification 控制微观结构开发新型热弹性和磁弹性金属传感器/执行器材料”材料与技术。
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FURUYA Yasubumi其他文献

FURUYA Yasubumi的其他文献

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{{ truncateString('FURUYA Yasubumi', 18)}}的其他基金

Multiplication properties of multi-ferroic nanomaterial and micro magnetic sensor
多铁性纳米材料及微型磁传感器的倍增特性
  • 批准号:
    21246019
  • 财政年份:
    2009
  • 资助金额:
    $ 19.3万
  • 项目类别:
    Grant-in-Aid for Scientific Research (A)
Development and Evaluation of Multi-ferroic Actuator/Sensor Materials made by Rapid-solidification Process
快速凝固工艺多铁性执行器/传感器材料的开发与评估
  • 批准号:
    17360044
  • 财政年份:
    2005
  • 资助金额:
    $ 19.3万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Design of Multi-functional and Smart Composites
多功能智能复合材料的设计
  • 批准号:
    11221201
  • 财政年份:
    1999
  • 资助金额:
    $ 19.3万
  • 项目类别:
    Grant-in-Aid for Scientific Research on Priority Areas (B)
DESIGN OF INTELLIGENT MATERIAL SYSTEM BY COMBINING THE CONTROL WITH EVALUATION OF SHAPE MEMORY ALLOY
形状记忆合金控制与评估相结合的智能材料系统设计
  • 批准号:
    07455047
  • 财政年份:
    1995
  • 资助金额:
    $ 19.3万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Material Evaluation of the Strenght and Degradation of Ally Steels by Magnetic Barkhausen Noise Analysis
通过磁巴克豪森噪声分析对合金钢的强度和退化进行材料评估
  • 批准号:
    61850122
  • 财政年份:
    1986
  • 资助金额:
    $ 19.3万
  • 项目类别:
    Grant-in-Aid for Developmental Scientific Research
Study of the Deformation and Strength of the New Materials (Biomaterial, Ceramic,Rock etc.) by Speckle Photography Method.
利用散斑摄影法研究新材料(生物材料、陶瓷、岩石等)的变形和强度。
  • 批准号:
    60550057
  • 财政年份:
    1985
  • 资助金额:
    $ 19.3万
  • 项目类别:
    Grant-in-Aid for General Scientific Research (C)

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电荷和磁阶协同使用弹性波灵敏控制
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