Distraction instrument for operation

Abstract

The invention discloses a distraction instrument for an operation. The instrument comprises a closed space defined by steel cables, two ends of each steel cable are connected to quick elastic structures, each steel cable is respectively connected to a drag hook ball body and a limiting piece in series, the limiting piece is hourglass-shaped, the spherical surface of the drag hook ball body is tightly attached to the peripheral wall of the limiting piece, a groove body is formed in the drag hook ball body, the left side and the right side of the groove body are side walls, a rotating shaft is arranged between the left side wall and the right side wall, and a drag hook is perpendicular to the rotating shaft. The instrument is innovative in structure, the operation field can be fully exposed,the surgical convenience of doctors is improved, the two steel cables form a closed and stable interval through the elastic structures, the drag hook does not need to be held by hand in the operation, and inconvenience caused by continuous drag hook in the operation is reduced. According to the size of a wound surface, drag hook ball bodies and limiting pieces with various sizes and models are respectively arranged, the drag hook ball bodies and the limiting pieces are tightly attached, sideslip and disengagement are avoided, the wound surface distraction stability is guaranteed, the distraction area is large, the local adjustability is high, the operation field can be fully exposed, and the instrument is provided with a quick-tightening and quick-loosening device, so that adjustment is facilitated at any time during an operation to fully meet the requirement for exposing the operation field.

Description

technical field [0001] The invention belongs to the technical field of surgical distraction, and in particular relates to a surgical distraction instrument for orthopedics and conventional surgery. Background technique [0002] In clinical operations, it is necessary to fully expose the surgical field to the surgical site, and the surgical exposure methods are different in different departments. In general, the clamp-shaped spreader can be used in the department to achieve the effect of exposing the surgical field. In orthopedic surgery, due to the The exposure field of view is large, and the tough muscles on the bone surface are relatively thicker and stronger than other tissues, so a simple forceps-type spreader cannot meet the requirements of the exposure field of view. During the entire operation, the use of multiple forceps-type spreaders will lead to a complicated surgical field , and the fixation is not firm and easy to fall off, which not only prolongs the operation ...

AI Technical Summary

Problems solved by technology

[0002] In clinical operations, it is necessary to fully expose the surgical field to the surgical site, and the surgical exposure methods are different in different departments. In general, the clamp-shaped spreader can be used in the department to achieve the effect of exposing the surgical field. In orthopedic surgery, due to the The exposure field of view is large, and the tough muscles on the bone surface are relatively thicker and stronger than other tissues, so a simple forceps-type spreader cannot meet the requirements of the exposure field of view. During the entire operation, the use of multiple forceps-type spreaders will lead to a complicated surgical field , and the fixation is not firm and easy to fall off, which not only prolongs the operation time, but also cannot achieve effective adjustment of the exposure of the operation field

On the other hand, for fine surgery, multiple retractors must be adjusted multiple times during the operation, which cannot be achieved for conventional single retractors.

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