Research Of A New Anal Sphincter Based On Wireless Communication And Wireless Power Supply

Fecal incontinence is a common disease in intestines and anus surgery, featured by defecation disability and caused by pathological changes. Fecal incontinence does not only bring both body and mental sufferings to patients, but also causes a lot of social burden. There are still no efficient treatment methods for the patients with fecal incontinence, and it is also a difficult problem for doctors and researchers of anus surgery.In order to help those patients with defection control problem thoroughly, enlightened by the artificial urethra sphincter, we decided to develop a new anal sphincter based on wireless communication and wireless power supply to simulate the operation mechanism of normal anus sphincter and eliminate the serious physiological and mental infection caused by existing anus surgery. The system integrates the following modules: information sensor module, wireless communication module, notice module, control module, execution unit and wireless power supply module. The sensor module measures the pressure of large intestine, and then the system transmits the processed data out of body via wireless communication module. The notice module starts and reminds patients to defecate as soon as the pressure exceeds the threshold. Patients can press control buttons to open the sphincter and defecate. The wireless power supply module includes two parts, the external power transmission part and the internal power receive part. The wireless power supply module fulfills the power requirement of internal wireless communication module, information sensor module and execution unit. During simulated animal experimentation, the whole system could realize the function of human anal sphincter and reach our expectation. The new anal sphincter, based on wireless communication and wireless power supply, is the combination for biomedicine and clinic medicine. Therefore, this artificial anus system needs more animal experiment and clinic analysis in the near future. We believe that the new anal sphincter is a brand-new way to treat fecal incontinence, and it is especially an evangel for patients suffered from fecal incontinence of neuromuscular origin.This thesis introduces the design of the new anal sphincter system, including the whole structure, modules design and system realization. It also gives out prototype machine and experimental result. The assumption of improvement and direction of further research is also carried out at the end of this thesis.