Company Filing History:
4 out of 5 
1 out of 7 
1 out of 23 
Years Active: 2016-2025
Title: Zhaohua Chang: Innovator in Medical Technology
Introduction
Zhaohua Chang is a prominent inventor based in Shanghai, China, known for his contributions to medical technology. With a total of five patents to his name, he has made significant advancements in the field of cryoablation and electrophysiological catheters. His innovative designs aim to improve medical procedures and enhance patient care.
Latest Patents
One of Zhaohua Chang's latest patents is the adjustable cryoablation needle. This invention features a needle rod, a front-segment heat-insulated tube, a rear-segment heat-insulated tube, and a gas inlet structure. The design allows the needle rod to move relative to the rear-segment heat-insulated tube, enabling adjustments to the axial distance between the two components. This innovation addresses the inconvenience faced by doctors when selecting the appropriate model of cryoablation needle.
Another notable patent is the balloon catheter and ablation system. This system includes an electrophysiological catheter, a control device, and an ablation energy output device. The control device selectively provides either a first fluid or a frozen liquid to the catheter. This allows for thermal ablation or direct application of frozen liquid to the inner surface of the balloon, enhancing the effectiveness of the procedure.
Career Highlights
Zhaohua Chang has worked with several reputable companies in the medical field, including Accutarget Medipharma and Shanghai Microport Ep Medtech. His experience in these organizations has contributed to his expertise in developing innovative medical devices.
Collaborations
Zhaohua Chang has collaborated with notable professionals in his field, including Chi Yang and Bo Liang. These partnerships have fostered a collaborative environment that encourages innovation and the sharing of ideas.
Conclusion
Zhaohua Chang's contributions to medical technology through his patents and collaborations highlight his role as an influential inventor. His work continues to impact the medical field positively, improving procedures and patient outcomes.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.