Basic structure and features
Size
The 4MM-toothed grasping forceps have a specific size advantage in UBE surgery. This size design allows it to enter the surgical site through the working channel of UBE surgery and to rotate flexibly in the spinal endoscopy environment with relatively limited operating space. Its smaller diameter helps reduce damage to surrounding tissues, because in spinal surgery, especially in areas with complex neurovascular structures such as the spinal canal, oversized instruments may compress or damage nerves.
Toothed design
The toothed structure of the grasping forceps is one of its key features. The toothed structure can enhance the grip of tissue, allowing it to firmly grasp the nucleus pulposus tissue. In spinal surgery, the nucleus pulposus tissue is usually soft and has a certain degree of elasticity. The toothed design can prevent the nucleus pulposus from slipping during the grasping process. For example, when grasping the nucleus pulposus tissue from the ruptured intervertebral disc space, the teeth can be embedded in the nucleus pulposus to ensure a stable grasping effect.
Application scenarios in UBE surgery
Disc nucleus pulposus removal
This is the main application scenario of the 4MM toothed grasping forceps. In the UBE surgical treatment of intervertebral disc herniation, after the protruding nucleus pulposus tissue is located through the endoscope, the grasping forceps can enter the intervertebral disc space through the working channel. Its toothed front end can accurately grasp the protruding nucleus pulposus part, and then gradually remove the nucleus pulposus from the intervertebral disc. For example, in the operation of lumbar disc herniation, it can penetrate into the common intervertebral disc herniation sites such as L4-L5 or L5-S1, effectively remove the nucleus pulposus tissue that compresses the nerves, and relieve the patient's lower limb pain, numbness, and other nerve compression symptoms.
Tissue cleaning and debridement
During the operation, it can also be used to clean other pathological tissues or fragments in the surgical area. For example, when dealing with intervertebral disc degeneration accompanied by ruptured annulus fibrosus and free nucleus pulposus tissue, in addition to grasping the protruding nucleus pulposus, it can also be used to clean the nucleus pulposus fragments free in the spinal canal. At the same time, for some pathological tissues such as inflammatory granulation tissue that may compress the nerves, the grasping forceps can also be used to clean them, keeping the surgical area clean and tidy, and creating a good environment for nerve recovery.
Operation precautions and skills
Operation precautions
Since the operation is performed under the endoscopic field of view, special attention should be paid to avoid damaging the surrounding nerves and blood vessels when using the 4MM nucleus pulposus forceps with teeth. During the operation, ensure that the endoscope has a clear field of view and always observe the relative position of the grasping forceps and important structures such as nerves. In addition, when grasping tissue, avoid excessive force to prevent the instrument from suddenly bouncing off or causing tissue tearing, causing unnecessary bleeding, or nerve damage.
Operation skills
The surgeon needs to master the appropriate angle and strength. When entering the intervertebral disc space or other surgical sites, insert the grasping forceps at an appropriate angle according to the anatomical structure and the path displayed by the endoscope. A progressive grasping method should be adopted when grasping the nucleus pulposus tissue. First, gently close the grasping forceps to allow the teeth to partially embed into the nucleus pulposus, and then adjust the grasping force appropriately according to the size and texture of the tissue to smoothly remove the tissue. At the same time, combined with the dynamic observation of the endoscope, the position and direction of the grasping forceps can be flexibly adjusted to achieve the best surgical effect.