1993 At the kind invitation of Ms. Weber, President of American Sexology Society, and Dr. Smith, Medical College of New Jersey State University, Chen Kai paid an academic visit to New Jersey State University. At New Jersey State University, Chen Kai introduced his research in the field of sexual dysfunction in detail, which was highly praised by his American counterparts. Because the number of patients with sexual dysfunction in the United States is increasing year by year, New Jersey State University thinks that the 86- 10 sexual rehabilitation therapeutic instrument invented by Chen Kai has great development prospects, so it applies for establishing a sexual dysfunction research laboratory in cooperation with Chen Kai. Chen Kai exchanged his practical experience in establishing a racecourse in China to study sexual dysfunction with his American counterparts.
During an academic visit to the United States, Ms. Weber, President of the American Society of Sexology, asked Chen Kai about the problems in the diagnosis and treatment of sexual dysfunction, hoping to get Chen Kai's help. Ms Weber is a practitioner of the theory of international sexual dysfunction intensive training therapy. Chen Kai pointed out that sexual behavior can only be carried out with the cooperation of partners, and external medical help can only solve the organic causes of sexual dysfunction. Because sexual dysfunction is often the cause of the coexistence of organic and psychological factors, the "warmth" and "cooperation" in treating sexual dysfunction partners can not be ignored, which is the "good medicine" to solve psychological factors. Chen Kai said that "sexual intercourse" existed in ancient China, and the core idea of "sexual intercourse" is a word "harmony", which can supplement the deficiency of sexy concentrated training therapy for sexual dysfunction. Chen Kai's theory greatly encouraged Ms Weber. Later, Ms. Weber found in the laboratory that the joint treatment of sexual dysfunction by husband and wife was effective, which was a powerful supplement to the sexy intensive training therapy.
After the establishment of the Sexual Dysfunction Research Laboratory of the State University of New Jersey, USA, Professor Chen Kai and Professor Ma Yongjiang, one of the experts of Shanghai Male Sexual Dysfunction Rehabilitation Center (now Shanghai Cheng Kai Male Sexual Dysfunction Rehabilitation Center) and famous domestic urologists, were invited to visit the State University of New Jersey, USA for academic exchanges and scientific research on sexual dysfunction. Chen Kai's unique research results have made important contributions to the development of new technologies for diagnosis and treatment of sexual dysfunction in the world.