The UBE surgical tool occlusal forceps is used for cutting the upward-curved type of ligamentum flavum

Structural features and advantages
"Size"
The 4MM diameter enables the scissors to pass smoothly through the UBE surgical channel, and the 180MM length provides sufficient working distance for internal spinal operations. This size design ensures that the scissors can effectively reach the surgical site without exerting excessive pressure on the surrounding tissues due to the large volume of the instruments.
45-degree upward bend design
The 45-degree upward curve Angle is a key feature of the scissors. In spinal surgery, this Angle enables the scissors to better adapt to the physiological curvature and complex anatomical structure of the spine. For instance, in the cervical and lumbar regions, the spine has natural lordosis or kyphosis. The upward-curved scissors can more easily reach the intervertebral space and the lateral wall of the spinal canal, and perform cutting operations on some tissues hidden behind the curvature.
Needle-free design
The needle-free design makes the operation of the scissors more flexible. It enables doctors to have greater freedom in controlling the force and Angle of shearing during the operation, and can make fine adjustments according to different tissue types and surgical requirements. Compared with the needle-free design, needle-free shears can adapt more flexibly when encountering tissues of different thicknesses or toughness, avoiding unnecessary damage to the tissues caused by the fixed shearing mode.
Application scenarios in spinal surgery
Treatment of intervertebral disc tissue
In intervertebral disc surgery, such as when treating intervertebral disc protrusion or intervertebral disc degeneration, this shear can be used to deal with the protruding intervertebral disc tissue. When part of the intervertebral disc tissue has protruded into the spinal canal, after endoscopic observation and positioning, the scissors bent upward at a 45-degree Angle can accurately reach the position of the protruding tissue. For some intervertebral disc fragments that are adhered to the surrounding tissues, the adhered parts can be cut off to facilitate subsequent nucleus pulposus removal. At the same time, for degenerated intervertebral disc tissue, such as the protruding part after the annulus fibrosus ruptures, it can also be trimmed with scissors to keep the surgical area clean.
Spinal canal decompression surgery
In the surgical treatment of spinal stenosis, scissors play a significant role as they can be used to cut the hyperplastic ligament tissue within the spinal canal. For instance, when the thickening of the ligamentum flavum causes spinal canal stenosis, a pair of scissors that bends upward at a 45-degree Angle can follow the shape of the spinal canal to the appropriate position of the ligamentum flavum and cut off the excess part that compresses the nerve. In addition, scissors can also be used to clear some scar tissue or small osteophytes in the spinal canal that may compress the nerves, increase the volume of the spinal canal, and relieve the pressure on the nerves.
Assist in tissue separation and repair
Tissue separation and repair are often required during spinal surgery. Scissors can assist doctors in separating adhered tissues. For instance, during spinal fusion surgery, when it is necessary to clear the soft tissues between the vertebrae to create favorable conditions for the implantation of the fusion device, scissors can cut off the adhesion between the soft tissues and the bone surface. In some spinal injury repair surgeries, the irregular edges of the injured tissue can also be appropriately trimmed with scissors, which helps the tissue heal better.
Surgical precautions and techniques
Surgical Precautions
Since spinal surgery is performed under endoscopic visualization, it is first necessary to ensure a clear endoscopic field of view in order to accurately determine the relationship between the scissors and the surrounding tissues. During the insertion and operation, special attention should be paid to avoiding damage to important tissues such as nerves and blood vessels. As the needle-free design may make the force control during surgery more precise and challenging, it is necessary to control the shearing force during use to avoid excessive shearing force causing tissue tearing or bleeding.
Operation skills
Insertion technique: Based on the anatomical path observed by the endoscope and the structural characteristics of the surgical site, insert at an appropriate Angle and direction by bending the shearing forceps upward at a 45-degree Angle. Make use of the natural anatomical Spaces of the spine, such as the intervertebral Spaces and nerve root canals, and slowly and steadily insert the shearing forceps into the target position, avoiding forced insertion that may damage the surrounding tissues.
Shearing technique: When performing shearing operations, first gently bring the cutting edge of the shearing pliers close to the target tissue. Adjust the shearing Angle and force according to the size, thickness, and toughness of the tissue. For more resilient tissues, such as the ligamentum flavum, a step-by-step shearing method can be adopted, that is, applying small amounts of shearing force multiple times to avoid excessive force at one time. Throughout the entire surgical procedure, the position and operation of the shearing forceps should be flexibly adjusted in combination with the real-time observation of the endoscope to achieve the best surgical outcome.