Endoscopic sewing and knot tying machine

Abstract

The invention relates to surgical instruments and especially to an endoscopic sewing and knot tying machine comprising a suture needle, a pull rod, a main pipe, a handle, a coil, a trigger, a needle fastening nut, a rotating head, a rotating shaft, a line guide hole, a line pressing column, a needle rotating nut, a gear, a fixing shaft, a trigger shaft, a trigger groove and a handle framework, wherein the main pipe is fixed at the front end of the handle framework, and the rotating head is movably connected with the main pipe; the pull rod is arranged in the cavity of the main pipe, the front end of the pull rod is connected with the rotating head, and the back end of the pull rod is connected with the needle rotating nut; the trigger groove is arranged in the handle framework, and the trigger is fixed in the trigger groove through the trigger shaft; the tooth surface of the trigger is matched with the gear; the gear is fixed on the handle framework through the fixing shaft; the coil is movably embedded in the gear; the device utilizes the needle feeding and line guiding method of the fixed suture needle, only the line is guided and the needle is not threaded, so that the sewing operation is simple; and a principle of connecting the incomplete gear with the gear is utilized to controllably extend or shrink the suture line to facilitate the knot tying, line fastening and continuous sewing and knot tying operations.

Description

technical field [0001] The invention relates to a surgical instrument for treating diseases inside a body cavity, and is a laparoscopic suturing and knotting machine capable of flexibly delivering threads, suturing and tying knots in a body cavity under the field of view of a laparoscope. Background technique [0002] In recent years, the advancement of science and technology has enabled the minimally invasive laparoscopic technique to play an important role in the diagnosis and treatment of diseases in the abdominal cavity, thoracic cavity, and various body cavities, and laparoscopic surgery has also made great progress. Suturing, knotting, and hemostasis may be the most important in laparoscopic surgery, especially laparoscopic surgery. At present, laparoscopic suturing and knotting techniques are the same as traditional surgery. The needle holder holds the needle for suturing, and then knots are made after threading the needle. Due to the small size of the body cavity spa...

AI Technical Summary

Problems solved by technology

In order to make up for the deficiencies of the existing technology, simple but dangerous thermocoagulation, electrocoagulation (monopolar, bipolar), laser, various clips, staples, etc. are used for apposition tissue or hemostasis in laparoscopic surgery Although the operation is simple and easy, inadvertent operation may cause severe bleeding or necrosis of surrounding tissues, resulting in death of the patient. Therefore, for the dangerous parts of large blood vessels or tissue apposition, the above methods are generally not used rashly, and the clumsy method is used instead. But stronger extracorporeal knotting, intracorporeal suture-knotting methods, or loop techniques

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