On October 28, 2021, Dongguan Tu’s ChengFa Precision Spring Co., Ltd. and Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences jointly established the "Joint Laboratory of Medical Intervention Devices", which was grandfully held under the full report and filming of CCTV's "Rising China" program group. Feng Wei, secretary of the Commission for Discipline Inspection of the Shenzhen Advanced Academy of Chinese Academy of Sciences, visited the conference together with local leaders of Rhinoceropo in Dalang.

On the site of the conference, Tu’s ChengFa general manager Du Zhisheng delivered a speech. Du Zhisheng first thanked Secretary Feng Wei, Director Bi Yalei, Party and government leaders of Xiocio PI and all the distinguished guests and friends for coming.

Then, Du Zhisheng mentioned that he entered the spring industry in 1989, set up Chengfa Spring in Shenzhen in 2002, entered the medical industry in 2016, came to Rhino PI in 2017 and changed the name of the enterprise to Du Shi Chengfa. After 33 years of unremitting efforts, finally break through numerous barriers, break through layers of technical barriers. Today, the company has obtained 8 invention patents and 17 utility model patents in the field of medical production technology.

"Today, we will cooperate with Shenzhen Advanced Institute of Chinese Academy of Sciences to delve deeper into OCT (Intravascular imaging) and IVUS (Intravascular ultrasound). I am confident that we will soon be able to implement localization, among which OCT has already been localization," Du said in his speech.

Feng Wei, Secretary of the Commission for Discipline Inspection of Shenzhen Advanced Institute, delivered a speech afterwards. Secretary Feng Wei first thanked Du for his warm welcome and introduced the rapid development of Shenzhen Advanced Institute in enterprise cooperation in recent years. He stressed that Shenzhen Advanced Institute grasp the source of innovation, closely combined with the industry, facing the needs of enterprises. Based in the Guangdong-Hong Kong-Macao Greater Bay Area, ITRI has demonstrated its mission. He hoped that the Joint Laboratory of Medical Interventional Devices jointly established by the two sides could make the best efforts to reflect the effect of cooperation, and wished the joint laboratory a successful signing and smooth cooperation.

At the meeting, after the leaders made speeches, the signing ceremony of the joint laboratory was officially held. Gong Xiaojing, researcher of Shenzhen Advanced Institute of Chinese Academy of Sciences, and Du Zhisheng, general manager of Tu’s ChengFa completed the signing ceremony at the scene. All colleagues of Chengfa and invited guests witnessed the signing ceremony.

In addition, the unveiling ceremony of the joint laboratory was held at the site. Feng Wei, Secretary of the Commission for Discipline Inspection of Shenzhen Advanced Institute of Chinese Academy of Sciences, Bi Yalei, Director of the Institute's Enterprise Cooperation and Development Division, Huang Xiaohua, Deputy Director of the Institute's Enterprise Cooperation and Development Division, Gong Xiaojing, Associate researcher and Du Shi Chengfa General Manager Du Zhisheng, Director Ding Wanping, COO Nie Hong and Research and Development Manager Ke Linjian jointly attended the unveiling ceremony.

It is reported that the "Joint Laboratory of Medical Interventional Devices" established by the two sides will strengthen the research and development and promote the localization in the field of OCT and IVUS, the detection equipment before stent implantation in the blood vessels. As the core component of OCT/IVUS, the multi-strand traction wire product developed by Du Shi Cheng Fa has broken the manufacturing monopoly of multi-strand traction wire in the United States and Japan, becoming the third manufacturer in the world and the first manufacturer in China capable of completely independent development, processing and mass production, filling the production technology gap in the domestic industry.

Multi-strand pull wire (coil) is developed by a unique process that enables it to maintain flexibility while also offering high push-off and rotational performance. The coil is able to push the imaging probe through a complex network of narrow, curved vascular channels to reach the lesion. The coil transmits rotation and retraction moments to drive the imaging probe to complete rotation and retraction to complete scanning imaging.

Coil is most commonly used for driving intravascular ultrasound imaging (IVUS) and intravascular optical coherence tomography (OCT). Since imaging completely depends on the rotation and retraction of the imaging probe in the blood vessel to achieve a complete scan of the blood vessel, the stability of the motion, the precision of repetition and the precise transmission of the driving moment directly affect the image quality. With the improved resolution, accuracy and speed of endovascular imaging, the transmission and motion performance of coil are required. coil needs to be developed and improved as a key component of endovascular imaging.

coil is not only a key component of endovascular imaging, but also has been closely associated with various cardiac and cerebral interventional instruments. coil can be used to push the developer, release the stent, and install the pacemaker and brain pacemaker. Only a capable coil can enable doctors to perform complex and delicate operations that allow them to remotely control internal devices from outside the body. Therefore, the research and development of high performance traction wire is an important basis for the development of various cardiac interventional devices, but also to meet the urgent needs of high complexity cardiac interventional operations.

In the future, the joint laboratory will adhere to scientific and technological innovation as the core, supported by high-end research and development platform, and strengthen research and development and innovation in other fields of medical intervention.