Study on Devices And System For Endscope of The Next Generation

下一代内窥镜装置及系统研究

• 批准号: 08455201
• 负责人: UCHIYAMA Akihiko
• 金额: $ 2.82万
• 依托单位: Waseda University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 1996
• 资助国家: 日本
• 起止时间: 1996 至 1998
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-08455201/
• 关键词: Bio-telemetry; Multi-sensor; Endoscope; Bio-transmission line; Bio-signal; 生体伝送路; 生体伝送器; パルス変調; 消化管計測; センサ; マイクロマシン

In this study, we have developed key technologies on endoscope of the next generation. The obtained results are as follows.1. Micro multi-sensor for endoscope. The size of this sensor is so small as to install within a tiny monitoring device which can be swallowed. That is, a silicone wafer of 3mm x 4mm and 0.2mm thick size was fabricated to multi-sensor (pressure, pH and temperature).2. Endoscope of the next generation. The method of image sensing is either CCD or ultrasound. However, these system require high electric power for the circuits. Therefore, intestinal parameters other than image are monitored and transmitted in this study. This type of capsule will be useful for health care.3. Energy transmission through body tissue. Electric current flows easily in the human body, because the conductance of the tissue is approximately same as seawater. The frequency characteristics of them are similar and we have verified that about 50 KHz current is optimum. The sinusoidal waveforms of that frequency was used as a carrier and modulated by pulses. This transmission has a merit of saving energy for signal transmission from within the body compared with the method of electromagnetic transmission system. The power of the output from IC is only 8 uW. This suggests us the possibility of capsule type monitoring device that requires very low power consumption. Anther study was to transmit circuit energy by means of ultrasound of about 100 KHz. We could have send 550 uW through saline water which is enough to operate low consumption (70 uW) IC. Therefore, it is possible to develop battery less monitor or more small capsule type measuring devices.

在这项研究中，我们开发了下一代内窥镜的关键技术。主要研究结果如下：1.内窥镜用微型多传感器。这种传感器的尺寸非常小，可以安装在一个可以吞下的微型监控设备中。也就是说，3mm x 4mm和0.2mm厚尺寸的硅晶片被制造成多传感器（压力、pH和温度）。下一代内窥镜。图像传感的方法是CCD或超声波。然而，这些系统对于电路需要高电功率。因此，在本研究中，除了图像之外，还监测和传输肠道参数。这种类型的胶囊将是有益的保健。3.能量通过身体组织传递。电流很容易在人体内流动，因为组织的电导率与海水大致相同。它们的频率特性是相似的，我们已经证实，约50千赫的电流是最佳的。该频率的正弦波形被用作载波并由脉冲调制。与电磁传输系统的方法相比，这种传输具有节省能量以用于从体内传输信号的优点。IC的输出功率仅为8 uW。这向我们暗示了需要非常低功耗的胶囊型监测设备的可能性。另一项研究是通过约100 KHz的超声传输电路能量。我们可以通过盐水发送550 uW，这足以运行低功耗（70 uW）IC。因此，有可能开发更少电池的监视器或更小的胶囊型测量装置。

项目成果

武田,庄子: "経口型生体情報計測マイクロカプセル用マルチマイクロセンサの試作"第36回日本ME学会大会. 11・特(報告予定). 112 (1997)

Takeda，Shoko：“口腔生物信息测量微胶囊的多微传感器原型”第36届日本ME学会会议11.特别报告（待报告）112（1997）。

S. Ike et al: "Studies of Custom IC for Micro Health Information Monitoring Systems"Meetings on Sensor and Micro-machine, The Inst. of Elec. Engrs. of Japan. 23 (1997)

S. Ike 等人：“微型健康信息监测系统定制 IC 的研究”传感器和微型机器会议，Inst。

E.Takeda,T.Handa,S.Shoji,A.Uchiyama: "Studies on Bio-Sensing Microsystems for Health Care,"14th Int.Symp.on Biotelemetry. 14(to be presented.). (1997)

E.Takeda、T.Handa、S.Shoji、A.Uchiyama：“医疗保健生物传感微系统研究”，第 14 届 Int.Symp.on 生物遥测。

横山,京相,内山: "超音波による生体内テレメータへのエネルギ伝送システムの開発"医用電子と生体工学. 37・特. (1999)

Yokoyama、Kyoso、Uchiyama：“使用超声波开发体内遥测仪的能量传输系统”《医疗电子和生物工程》37 特别版（1999 年）。

E. Takeda et al: "Studies on Bio-Sensing Microsystems for Health Care"Proc. Of Biotelemetry XIV. 137 (1997)

E. Takeda 等人：“医疗保健生物传感微系统研究”Proc。