Tissue traction device and using method thereof

Abstract

The embodiment of the invention provides a tissue traction device and a using method of the tissue traction device, and relates to the technical field of medical instruments. The tissue traction device provided by the embodiment of the invention comprises an outer tube assembly, a clamping seat, a clamping body and an inhaul cable assembly. The clamping base is connected to the far end of the outer tube assembly, and the clamping body is used for clamping tissue and movably matched with the clamping base. A first connecting structure is arranged on the clamp body, a second connecting structure is arranged on the clamp base, and the first connecting structure is used for being connected with the second connecting structure so that the clamp body can be in a clamping and locking state. The inhaul cable assembly penetrates through the outer pipe assembly, and the far end of the inhaul cable assembly is connected with the clamp body so that the clamp body can be operated through the inhaul cable assembly. When the clamp body is in a clamping and locking state, the outer tube assembly is connected with the clamp seat, so the clamp body in the body can be pushed and pulled by operating the near end of the outer tube assembly extending out of the body during use, tissue traction is further realized, and the surgical field can be better improved.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a tissue traction device and a method for using the tissue traction device. Background technique [0002] Endoscopic submucosal dissection (ESD) refers to the use of a modified needle knife to directly peel off the mucosa from the submucosa under the endoscope, and evolved from endoscopic mucosal resection (EMR). Both ESD and EMR have achieved resection of the lesion with an ordinary single-channel endoscope. However, EMR cannot resect large lesions in one piece, and the fragmented specimens taken out are difficult to carry out detailed pathological analysis. The tumor stage is not clear. There is a disadvantage of a higher risk of tumor recurrence. Due to its high complete resection rate and good safety, ESD has expanded the indications for resection of early digestive tract cancer and other tumors, and has gradually become a widely accepted minimally invasive surgical ...

AI Technical Summary

Problems solved by technology

[0003] However, compared with EMR, ESD has the problems of long operation time, high risk, and difficult operation. At the same time, there is little bleeding during EMR operation. However, during ESD operation, if you do not pay attention, the field of view will be covered with blood, and the field of view must be continuously hemostasis and washed.

Therefore, in order to obtain a good surgical field of view, various endoscopic-assisted traction techniques have emerged as the times require, such as dental floss traction. However, dental floss traction may damage tissues. At the same time, dental floss traction is difficult to accurately grasp tissues. It can only be pulled but not pushed. , limited ability to improve surgical field of view

Images