Automatic locking mechanism for general surgery department operation drag hook

Abstract

The invention discloses an automatic locking mechanism for a general surgery department operation drag hook. The mechanism comprises: two threaded cylinders; a connecting plate which is arranged at the bottoms of the two threaded cylinders; a clamping seat which is fixedly mounted at the bottom of the connecting plate; a locking stud which is mounted on the clamping seat in a threaded manner; an adjusting screw rod which is installed on the two threaded cylinders in a threaded mode, and the two ends of the adjusting screw rod extend out of the two threaded cylinders correspondingly; and a guide groove which is formed in one end of the adjusting screw rod. The automatic locking mechanism for the general surgery department operation drag hook has the advantages that: adjustment is easy to master, stability is good, use smoothness of the automatic locking mechanism can be guaranteed, meanwhile, connection between the rotating shaft and the threaded rod is stable, tensioning can be stable, the angle of the drag hook is convenient to adjust, and use flexibility is improved.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to an automatic locking mechanism for a retractor in general surgery. Background technique [0002] In clinical general surgery, it is often necessary to use surgical retractors to pull apart the muscles, nerves, blood vessels, etc. at the surgical site to obtain a better surgical field of view and improve surgical efficiency and success rate. Most of the existing surgical retractors need to arrange special The assistant operates manually. The advantage of manual operation is that it is fast and convenient. However, due to the functional limitations of the human body, it is difficult to keep the force of the hook stable for a long time, and the position may change at any time, which brings unnecessary troubles to the operation process. , while the existing surgical retractors generally have a fixed structure, which is inconvenient for clamping and adjustment. [0003] A...

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Problems solved by technology

[0004] However, due to its structural problems, it has the following problems. One: because the left cylinder and the right cylinder are connected by an elastic plate, when adjusting the position of the screw, it is necessary to manually pinch the elastic plate for a long time, and it is difficult to exert force. At the same time, due to the poor stability of the elastic plate, the adjustment smoothness is low; second: because the connection between the screw and the rotating shaft is fixed by a simple spring and magnet, when the pull hook is in use, due to the spring and magnet The control force is small, resulting in a large movable space for the rotating shaft, and it is very easy for the rotating shaft to slip out of the screw rod frequently, making it difficult to achieve the effect of stable tension; third: because the pull hook is fixed, it cannot be used during use. The hanging angle needs to be adjusted, and the flexibility of use is poor

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