World's first bio-degradable actuator for removal-free implantable MEMS
World's first bio-degradable actuator for removal-free implantable MEMS
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DOI：
10.1109/memsys.2017.7863468
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发表时间：
2017
期刊：
影响因子：
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通讯作者：
Hiroshi Sato;Y. Inoue;M. Ikeuchi;K. Ikuta
中科院分区：
文献类型：
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作者：
Hiroshi Sato;Y. Inoue;M. Ikeuchi;K. Ikuta
我们提出了一种完全由聚乳酸（PLA）等可生物降解聚合物制成的植入式设备的新概念。由于生物可降解聚合物在人体内分解和吸收，因此使用后无需进行去除手术。生物可降解聚合物的微制造工艺已经开发出来[1,2]。除了微结构的制造之外，我们在本文中还成功开发了一种具有双向运动的“生物可降解执行器”。该执行器不需要电力，因为它利用了生物可降解聚合物机械性能的随时间变化。执行器的驱动原理得到了成功验证。完全可生物降解的微型设备概念应该开辟植入式微型设备的新领域。
We propose a new concept of an implantable device totally made of bio-degradable polymers such as Poly(lactic acid) (PLA). Since the bio-degradable polymer is decomposed and absorbed in a human body, the removal surgery after use is not required. A micro fabrication process of bio-degradable polymer has already developed [1,2]. In addition to the fabrication of micro structure, we succeeded to develop a “bio-degradable actuator” with a two-way motion in this paper. This actuator needs no electric power because it utilizes a chronological change of mechanical property of bio-degradable polymers. The driving principle of the actuator was verified successfully. The total bio-degradable micro device concept should open new field of an implantable micro device.