Structural features and advantages
Size and shape
The 3MM diameter design enables the nucleus pulposus forceps to pass through the UBE surgical channel smoothly, and the 180MM length provides sufficient operating distance. The round head can avoid damage to sensitive tissues such as nerves and blood vessels during operation. The straight type has 45-degree and 35-degree upward bends, which makes the nucleus pulposus forceps more adaptable in the complex anatomical structure of the spine. For example, in the intervertebral disc space of the cervical and lumbar vertebrae, these bends can help the nucleus pulposus forceps better reach hard-to-reach areas, especially at the edge of the intervertebral disc space or where the spine has physiological curvature.
Bowl mouth design
The bowl mouth design increases the contact area with the nucleus pulposus tissue, which can better fit the shape of the nucleus pulposus, thereby more effectively grasping the nucleus pulposus. This design is particularly effective for grasping irregularly shaped and soft nucleus pulposus tissue, like a "small spoon" to hold the nucleus pulposus, reducing the risk of the nucleus pulposus slipping during grasping.
Shearing performance
The shearing performance makes the nucleus pulposus forceps more versatile. During surgery, it can not only grab the nucleus pulposus but also shear the adhered tissues, fiber cords, etc. This helps in complex surgical scenarios, such as when the nucleus pulposus is severely adhered to the surrounding tissues, to cut off the adhered part first, and then grab the nucleus pulposus, making the surgical operation smoother.
Application scenarios in UBE surgery
Removal of intervertebral disc nucleus pulposus
This is the main application scenario in UBE surgery for intervertebral disc herniation. After determining the location of the nucleus pulposus protrusion through endoscopy, the bending angle of the nucleus pulposus forceps is used to enable it to smoothly bypass other tissues and reach the target position in the intervertebral disc space. The bowl mouth is designed to wrap and grab the protruding nucleus pulposus. When the nucleus pulposus is adhered to the annulus fibrosus or other tissues, the shearing performance is used to cut off the adhesion part, and then the nucleus pulposus is removed from the intervertebral disc to reduce the compression on the nerves and relieve the patient's pain, numbness and other nerve compression symptoms.
Cleaning the surgical area
Free nucleus pulposus fragments, degenerated annulus fibrosus tissue, inflammatory granulation tissue, etc. in the surgical area can be effectively cleaned. The bending angle helps to find debris in the complex space inside the spinal canal or around the intervertebral disc. The bowl-shaped design facilitates precise grasping, and the shearing performance can handle larger or adhered tissue blocks, keep the surgical area clean, and prevent the diseased tissue from causing further compression or damage to the nerves and spinal cord.
Tissue separation and exploration assistance
During the operation, the bending angle, bowl-shaped design and shearing performance can be used to assist in tissue separation. For example, when looking for the nucleus pulposus hidden behind other tissues or distinguishing normal tissue from diseased tissue, the bent head can be used to gently move and shear the tissue to assist in exploration. It can also be used in tissue repair surgery to clean the edges of damaged tissue and create good conditions for tissue healing.
Operation precautions and skills
Operation precautions
Because the operation is performed under endoscopic visualization, it is necessary to ensure that the endoscopic field of view is clear so that the relationship between the nucleus pulposus forceps and the surrounding tissues can be accurately observed. During the insertion and operation process, always pay attention to avoid damaging important tissues such as nerves and blood vessels. Be extremely careful when using the shearing function to ensure that only the tissue that needs to be processed is sheared to avoid accidentally shearing important tissues. When opening and closing the nucleus pulposus forceps to grasp tissue, the force should be controlled to prevent excessive force from causing tissue tearing or damage to the nucleus pulposus forceps.
Operation skills
Insert skills: According to the anatomical path shown by the endoscope and the structural characteristics of the surgical site, combined with the bending angle of the nucleus pulposus forceps, insert at an appropriate angle and direction. Using the characteristics of the round head, slowly insert along the natural anatomical gap or the established working channel to avoid forced insertion and damage to surrounding tissues.
Grasping and shearing skills: When grasping the nucleus pulposus tissue, first gently bring the nucleus pulposus forceps close to the target tissue, use the bending angle and bowl design to allow the nucleus pulposus to fully enter the bowl, and then adjust the grasping force appropriately according to the size and texture of the nucleus pulposus. When shearing is required, place the tissue to be cut accurately at the shearing position of the forceps, and gently apply pressure to shear. During the operation, the position and operation method of the nucleus pulposus forceps should be flexibly adjusted in combination with real-time observation of the endoscope to achieve the best surgical effect.
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