A catheter-type flow sensor for measurement of aspirated- and inspired-air characteristics in the bronchial region
A catheter-type flow sensor for measurement of aspirated- and inspired-air characteristics in the bronchial region
复制标题
用于测量支气管区域吸入空气和吸入空气特性的导管式流量传感器
DOI：
10.1088/0960-1317/19/10/105027
复制
发表时间：
2009
影响因子：
2.3
通讯作者：
K. Sato
中科院分区：
文献类型：
--
作者：
M. Shikida;J. Naito;T. Yokota;T. Kawabe;Y. Hayashi;K. Sato
我们开发了一种新型导管式流量传感器，用于测量经支气管吸入和吸入空气的特性。管内热流传感器安装在管内，作为支气管镜的测量工具。该管外径小于几毫米，因此，它可以评估小支气管区域的流动特性。我们最近开发了一种制造工艺，通过使用热缩管将其缩小到外径小于2.0毫米。用手将光刻法制备的薄膜传感器插入管中。通过应用热收缩过程，薄膜被自动安装在内壁表面，并且管的外部尺寸被缩小到几乎是原来尺寸的一半。管的最终内径为1.0 mm，外径为1.8 mm。在正向流动和反向流动条件下，传感器输入功率与流量的关系均服从King方程。研究了传感器输出对环境温度的依赖关系，并将39.2℃时得到的曲线作为动物实验的标定曲线。利用通风机对传感器在往复流量下的特性进行了研究，证实了该传感器能够测量2.0 Hz的往复流量。最后，我们成功地测量了大鼠气道的吸气和吸气特性。
We developed a novel catheter-type flow sensor for measuring the aspirated- and inspired-air characteristics trans-bronchially. An on-wall in-tube thermal flow sensor is mounted inside the tube, and it is used as a measurement tool in a bronchoscope. The external diameter of the tube is less than a few mm, and therefore, it can evaluate the flow characteristics in the small bronchial region. We newly developed a fabrication process to miniaturize it to less than 2.0 mm in the external diameter by using a heat shrinkable tube. A film sensor fabricated by photolithography was inserted into the tube by hand. By applying a heat shrinking process, the film was automatically mounted on the inner wall surface, and the outer size of the tube was miniaturized to almost half its original size. The final inner and outer diameters of the tube were 1.0 mm and 1.8 mm, respectively. The relationship between the input power of the sensor and the flow rate obeyed King's equation in both forward and reverse flow conditions. The sensor output dependence on ambient temperature was also studied, and the curve obtained at 39.2 °C was used as the calibration curve in animal experiments. The sensor characteristics under reciprocating flow were studied by using a ventilator, and we confirmed that the sensor was able to measure the reciprocating flow at 2.0 Hz. Finally, we successfully measured the aspirated- and inspired-air characteristics in the air passage of a rat.
通过化学各向异性蚀刻制造阵列三维微结构的非光刻图案转移
DOI：
--
发表时间：
2004
期刊：
Sensors and Actuators A116
影响因子：
--
作者：
M.Shikida;M.Odagaki;N.Todoroki;M.Ando;Y.Ishihara;T.Ando;K.Sato
通讯作者：
K.Sato
通过化学各向异性蚀刻制造阵列 3D 微结构的非光刻图案转移
DOI：
--
发表时间：
2003
期刊：
Proc.IEEE the 16^<th> Intl.Conference on Micro Electro Mechanical Systems, Kyoto 1
影响因子：
--
作者：
M.Shikida;M.Odagaki;N.Todoroki;M.Ando;Y.Ishihara;T.Ando;K.Sato
通讯作者：
K.Sato
影响因子：
2.3
作者：
M. Shikida;M. Ando;Y. Ishihara;T. Ando;Kazuo Sato;K. Asaumi
通讯作者：
M. Shikida;M. Ando;Y. Ishihara;T. Ando;Kazuo Sato;K. Asaumi