Three-arm clamp

Abstract

The invention provides a three-arm clamp, and belongs to the technical field of endoscope medical instruments. The three-arm clamp comprises a clamping assembly and a releasing piece which are connected with each other; the clamping assembly comprises a fixed arm and two movable arms rotationally connected with the fixed arm through pin shafts; first sliding chutes are formed in the near-ends of the movable arms; sliding groove pins are arranged in the first sliding grooves in a sliding mode; inner cavities are further formed in the near-ends of the fixed arms; the releasing piece penetrates into the inner cavity to be connected with the sliding groove pins; and elastic pieces are further arranged at the near-ends of the movable arms; the movable arm and the fixed arm are clamped and closed, and the elastic piece is folded in the inner cavity in the radial direction of the fixed arm from the connecting end to the free end and abuts against the releasing piece; the releasing piece is separated from the movable arm; and the free end of the elastic piece elastically abuts against the inner wall of the inner cavity. The three-arm clamp provided by the embodiment of the invention can simply, quickly and effectively clamp and suture large digestive tract defects and defects of parts difficult to operate in an endoscopic minimally invasive surgery.

Description

technical field [0001] The invention relates to the technical field of endoscopic medical instruments, in particular to a three-arm clamp. Background technique [0002] With the development of endoscopic minimally invasive technology, some gastrointestinal diseases that previously required surgical laparotomy or laparoscopy, such as early gastrointestinal tumors, can be treated with minimally invasive digestive endoscopy. During endoscopic minimally invasive surgery, the suturing of gastrointestinal mucosal defects, including gastrointestinal bleeding and perforation, is the most common problem that needs to be dealt with in surgery. [0003] At present, the defect suturing instruments mainly used in endoscopic minimally invasive surgery include: endoscopic clips, nylon rope combined with metal clips (pouches), endoscopic suturing devices (such as: OTSC) and surgical thread suturing instruments (such as: Overstitch), etc. . Endoscopic clips are easy to use and relatively c...

AI Technical Summary

Problems solved by technology

Endoscopic clips are easy to use and relatively cheap, but it is difficult to repair large defects or defects in difficult parts; nylon rope combined with metal clip suture can treat large wounds at one time, but there are wounds that cannot be completely closed and sutured The risk of metal clips falling into the wound surface will bring inconvenience to the operation; the endoscopic suture device can provide a large closing force, and can also perform full-thickness suture on wounds such as perforations, but the wounds treated by it are generally less than 10mm, and the endoscopic suture device can be used once. Only one suture can be performed, and the assembly operation of the instrument and the endoscope is complicated, requiring early training before use; the surgical suture instrument has its unique advantages as a representative instrument for suture suture, but its structure and operation are relatively complicated , need professional training and long-term practical operation to master

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