Liver spreader of single-port laparoscope

Abstract

The invention provides a liver spreader of a single-hole laparoscope . The liver spreader comprises an operation rod, a plurality of blades connected with one end of the operation rod, an opening andclosing control assembly and a handle, the opening and closing control assembly and the handle are arranged at the other end of the operation rod, and the operation rod is internally provided with a bracket, a blade push-pull rod and a piston assembly; at most one blade is fixedly connected with the bracket, the other blades are movably connected with the bracket and hinged to push-pull sheets forpushing and pulling the corresponding blades to be opened or reset, one end of the blade push-pull rod is movably connected with all the push-pull sheets, and the other end of the blade push-pull rodis fixedly connected with the opening and closing control assembly; the piston assembly comprises two pistons which move synchronously in opposite directions; each blade comprises a plurality of joint beads connected in series through two steel wires, the two steel wires are fixedly connected with the first piston and the second piston respectively, and one of the two pistons is connected to thehandle. By means of the liver spreader of the single-hole laparoscope, exposure of a surgical field of liver surgery can be enlarged, mutual interference with other surgical instruments is avoided, the convenience degree of surgical operation is increased, and the surgical time is greatly shortened.

Description

technical field [0001] The invention relates to the field of medical equipment, in particular to a single-hole laparoscopic liver grilling device. Background technique [0002] For a long time, due to the rich blood supply, complex structure and easy bleeding of the cut surface, the research on laparoscopic liver resection has developed slowly, and only a few large medical institutions have the ability to carry out research in this area. The scope of resection is mostly limited to the easily exposed left hepatic lateral lobe and liver segment IV, V, and VI lesions. The second hepatic hilum is difficult to handle, so mature laparoscopic hepatectomy and open hepatectomy techniques are required to complete successfully, and the exposure of the operative field is very important in this process. In addition, with the development of laparoscopic technology, no scar and no pain have become the development direction of surgical technology. [0003] Single-port laparoscopic surgery...

AI Technical Summary

Problems solved by technology

However, due to the limitations of operating instruments and other factors, single-port laparoscopic technology has encountered a bottleneck in the development, and it is difficult to implement it in some large and medium abdominal operations

Existing surgical instruments such as fan-shaped forceps, golden fingers, etc. cannot meet the needs of surgery

On the one hand, most of the existing instruments for exposing the liver are linear, which cannot solve the mutual interference of instruments under single-port laparoscopy; on the other hand, due to the curved structure of the liver diaphragm, ordinary instruments cannot clearly expose the second hilum important structure

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