Frontal sinus rongeur

Abstract

A frontal sinus rongeur comprises a fixed handle, a movable handle, a push rod, a connection rod, a handle fixing pin, a movable tong head, a fixed tong head and a tong head fixing pin, wherein the fixed handle and the movable hand are connected in a rotating mode through the handle fixing pin, a handle groove hole is formed in the movable handle, a push rod moving pin is arranged in the handle groove hole in a matched mode, the push rod moving pin is arranged at the rear end of the push rod, the push rod is arranged in a groove-shaped sliding rail on the left side of the connection rod, the rear end of the connection rod is fixedly connected at the front end of the fixed handle, the front end of the connection rod is fixedly connected with the fixed tong head, the tong head moving pin is arranged at the front end of the push rod, the tong head moving pin is arranged in a tong head groove hole formed in the movable tong head in a matched mode, the movable tong head and the fixed tong head are connected in a rotating mode through the tong head fixing pin, the movable handle can be opened and closed vertically, and the fixed handle can be opened and closed horizontally. The frontal sinus rongeur can gradually crunch sclerotin attached to the upper end of the processus uncinatus under the monitoring of a nasal endoscope, is good in controllability and is not prone to damaging mucosal tissues at the recess position.

Description

technical field [0001] The invention relates to a surgical instrument for opening the frontal sinus, in particular to a frontal sinus rongeur for biting off the bone at the upper end of the uncinate process. Background technique [0002] There are four pairs of air-filled bony cavities around the nasal cavity: the frontal sinus, the sphenoid sinus, the ethmoid sinus, and the maxillary sinus. Among them, the frontal sinus is located on the inside and above the orbit, between the inner and outer layers of the frontal bone. One each on the left and right. The development is very different and the shape is very inconsistent. The anterior wall of the frontal sinus is the outer plate of the frontal bone, which is relatively firm and thick. The posterior wall of the frontal sinus is the inner plate of the frontal bone, thereby separating it from the dura mater of the frontal lobe. The outer part of the bottom wall of the frontal sinus is the supraorbital wall, and the inner part ...

AI Technical Summary

Problems solved by technology

[0004] The currently used cutting power system and sinus forceps have high requirements for operation skills. Those who are not skilled in surgery can easily damage the mucosal tissue in the frontal recess, resulting in narrowing or even atresia of the opening of the frontal sinus after surgery, resulting in surgical failure. Therefore, it is not suitable for those who are not skilled in surgery or units with poor conditions to carry out surgery on the frontal sinus fossa

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