. This innovative machine for bariatric surgery originated in the United States is called "Zeltiq", which was jointly developed by researchers from Harvard University and Massachusetts General Hospital, and was introduced to the China market by PRT Company on 20 12. Has passed the FDA (US Food and Drug Administration) and CE (European Safety Certification Mark) certification. It is a new weight-loss technology, which has been widely used in the United States, Britain, Canada and other countries.