TISSUE TREATMENT DEVICES, SYSTEMS, AND METHODS

Systems, devices, and methods are provided for performing a medical procedure in the intestine of a patient. A medical device for performing a treatment and/or diagnostic procedure may include: an elongate shaft assembly including at least a shaft assembly first section including a distal section of the shaft assembly, and a shaft assembly second section proximal to the first section; and the functional assembly part is positioned on the first section of the shaft rod assembly part. Additional sections of the shaft assembly may be included, and each section may include a different configuration to, for example, achieve different rigidities as described herein. As described herein, variable stiffness along the length of the shaft assembly may be provided to assist the device in translating through the GI tract of the patient (e.g., through the stomach and into the small intestine). 本发明提供了用于在患者的肠中执行医疗程序的系统、设备及方法。一种用于执行处理和/或诊断程序的医疗设备可以包括：细长轴杆组装件，其至少包括包含所述轴杆组装件的远侧区段的轴杆组装件第一区段，以及位于第一区段近侧的轴杆组装件第二区段；以及位于轴杆组装件第一区段上的功