A wire tightening device for closing sternotomy

Abstract

The invention discloses a steel wire twisting device capable of closing a sternal incision. The steel wire twisting device comprises a base and a handle, a shaft hole is formed in the base, the handle is provided with a twisting shaft which is inserted into the shaft hole from the top end of the shaft hole and can rotate in the shaft hole, a partition ridge in the axial direction is arranged on the twisting shaft, steel wire grooves are formed in the portions, on the two sides of the partition ridge, of the twisting shaft respectively, an observation window is formed in the lower end of the shaft hole of the base by forming a transverse through hole, a pressure head is formed on the portion, below the observation window, of the base, a steel wire gathering via hole is formed in the portion, under the shaft hole, of the pressure head, and a tensioning mechanism capable of tensioning a steel wire is arranged on the portion, above the twisting shaft, of the handle. When the steel wire twisting device is used, after the steel wire winds around a sternum, the tensioning mechanism is twisted till the steel wire is completely tightened to make the axis of a twisting device perpendicular to the sternum; one hand holds the base fixedly, and the other hand unidirectionally rotates the handle to make the steel wire mutually winded around and twisted tightly in the same direction till the steel wire twisting part is twisted off at the observation window. According to the steel wire twisting device capable of closing the sternal incision, the steel wire can be prevented from being twisted off during operation, and the risk that the steel wire cuts the sternum or is snapped after operation is reduced.

Description

Technical field [0001] The invention is used in the technical field of medical equipment, and particularly relates to a steel wire twisting device for closing the sternum incision. Background technique [0002] At present, the conventional thoracotomy in cardiac surgery is generally performed by longitudinally splitting the sternum and performing thoracic and cardiovascular surgery. After thoracic and cardiovascular surgery is completed, the fracture ends of both sides of the sternum must be fixed. At present, the most common method of fixing the sternal stump is Take wire strapping to close the chest cavity to restore the integrity of the chest wall. [0003] The common operation of closing the chest with wire is to pass the sternal flaps on both sides of the incision or through the intercostal space around the surface of the sternum through the wire, and then tighten the wires at both ends to complete the fixation. In the prior art, a vise is used to tighten the steel wire or ot...

AI Technical Summary

Problems solved by technology

In the prior art, pliers are used to tighten steel wires or other metal wires around the sternum, which is prone to overload and break off the steel wires in the chest part, and due to the different tightness of the steel wires, the steel wires with high stress will appear. Risk of wire cutting the sternum or snapping

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