SUTURE DEVICE, TREATMENT DEVICE HAVING SUTURE DEVICE, AND TREATMENT SYSTEM

The utility model provides a stitching instrument, a treatment device with the stitching instrument and a treatment system. A treatment system includes an endoscope and a treatment device. The treatment device is used in cooperation with an endoscope and comprises an operating handle and a stitching instrument. The stitching instrument comprises a main shell, a stitching needle, a needle insertingassembly and a needle withdrawing prevention assembly. One end of the suture needle is connected with a suture line, and the other end is a tip. The needle inlet assembly is arranged on the main shell and forms a separable clamping relation with the suture needle so as to control advancing of the suture needle. The needle withdrawal prevention assembly is arranged on the main shell and forms a separable clamping relation with the suture needle, so that withdrawal of the suture needle is prevented. 本实用新型提供一种缝合器、具有缝合器的治疗装置以及治疗系统。治疗系统，包括内窥镜和治疗装置。治疗装置与内窥镜配合使用，包括操作手柄和缝合器。缝合器包括主壳体、缝合针、进针组件以及防退针组件。缝合针的一端连接有缝合线，另一端为尖端。进针组件设置