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Tohoku University Technology: Minimally Invasive Medical Device: T09-136

Tohoku University Technology: Minimally Invasive Medical Device: T09-136

It can reduce the burden on patients and improve the precision of surgical techniques.

Endoscopic surgery has smaller incisions compared to traditional open surgery, resulting in less burden on the patient. However, due to limitations on the number and outer diameter of instruments that can be inserted into the body, there is a demand for multifunctional instruments. Therefore, the present invention provides an endoscope that can incorporate multiple functions (such as imaging, multiple sensors, and therapeutic instruments like forceps) while ensuring ease of insertion and removal.

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Tohoku Univ. Technology： Batch fabrication method by laminating method：T24-029

Tohoku Univ. Technology： Batch fabrication method by laminating method：T24-029

Batch fabricating of complex parts using 3D printing robots

　In the fabricating industry, with the diversification of customer needs, the demand for high-mix, low-volume production and complex fabricating technology is increasing. In particular, for endoscopes, which are produced in high-mix, low-volume production, the parts processing and assembly work are generally carried out manually by skilled workers. However, there have been problems such as variations due to individual differences and time required for production by hand. 　In order to solve the above problems, the present invention has developed a method for automatically and collectively creating complex parts fabricating and assembly processes using a 3D printer and a robot arm. 　Specifically, a fixing table and a jig are laminated with a soluble material, and the parts are arranged on the main body using a robot arm. Then, the fixing table and the jig are dissolved (see right figure). We were able to test and confirm the operation of this technology by applying it to the joint of a chopstick endoscope used in otology (upper left figure) and a multi directional active bending mechanism using shape memory alloy (SMA) wire (upper right figure). 　In the future, we aim to apply this technology to various minimally invasive medical devices and some consumer products by mounting various micro electronic components.

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