UBE surgical tools-annulus knotter-dural knot pusher

Structural features and advantages
Features of the annulus fiber knotter
Fine design: The design of the annulus fiber knotter is usually more delicate and can be flexibly operated in the narrow UBE surgical channel. Its head may have a special bend or angle to facilitate the knotting of the annulus fiber in the complex anatomical structure inside the spine. This fine design can ensure an accurate knotting position and avoid damage to important tissues such as peripheral nerves and blood vessels during the knotting process.
Good grip and operation feel: In order to facilitate the doctor's operation, the handle part of the annulus fiber knotter generally considers ergonomic principles. It can provide a comfortable grip experience so that the doctor's hands are not easily fatigued during long-term surgical operations. At the same time, the design of the operating part allows the doctor to accurately control the strength and tightness of the knot to ensure the firmness of the annulus fiber after suturing.
Features of the knot pusher
Precise pushing: The knot pusher is mainly used to push the tied knot tightly. The shape and size of its head are suitable for contact with the knot on the annulus fiber, and it can accurately push the knot to the appropriate position. Its design can effectively avoid the loosening or displacement of the knot during the pushing process, ensuring the reliability of suturing.
Strong adaptability: The knot pusher can be used well with the fiber ring knotter and adapt to different types of suture materials and knot sizes. This allows it to play a role in various UBE spinal endoscopic surgery scenarios. Whether it is a thin absorbable suture or a slightly thicker non-absorbable suture, the knot can be firmly fixed to the fiber ring by the knot pusher.
Needle holder features (company design)
Stable clamping: The needle holder designed by the company can stably clamp the suture needle to ensure that the needle will not shake or fall off easily when suturing the fiber ring or dura mater. Its jaw part may adopt a special anti-slip design, such as a textured or elastic gasket, to increase the friction with the needle and improve the stability of the needle holder.
Angle and size adaptation UBE surgery: The angle and size of the needle holder are tailored for UBE spinal endoscopic surgery. It can pass through the UBE surgical channel smoothly and has a suitable operating angle inside the spine, which is convenient for doctors to perform suturing operations in limited space. For example, it may have a certain bending angle, allowing doctors to accurately pass the needle through the fiber ring or dura mater without interfering with surrounding tissues.
Application scenarios in UBE spinal endoscopic surgery
Application of suture of ruptured annulus
Precise suturing: When the annulus fibrosus is ruptured, use the needle holder to accurately clamp the suture needle and pass the suture through the edge of the ruptured annulus fibrosus. Then use the annulus fibrosus knotter to tie the knot. Due to its fine design and good operability, it can complete a firm knot in the complex environment inside the spine. For example, after the disc nucleus pulposus removal surgery, suturing the annulus fibrosus can prevent the nucleus pulposus from protruding again. In this process, the annulus fibrosus knotter can effectively tie the suture in a limited space to ensure the integrity of the annulus fibrosus.
Fixation and reinforcement of the knot: After the knot is tied, the knot pusher plays a role, pushing the knot tightly to the surface of the annulus fibrosus to make the suture more secure. This series of operations can effectively repair the ruptured annulus fibrosus and reduce the occurrence of postoperative complications. At the same time, since the coordinated use of these tools can achieve precise suturing and reinforcement, it is beneficial to the healing of the annulus fibrosus and promotes the patient's postoperative recovery.
Application of dural rupture repair
Preventing cerebrospinal fluid leakage with delicate operation: In the case of dural rupture, the use of needle holders, fiber ring knotters and knot pushers is also crucial. The needle holder helps the doctor pass the needle through the ruptured edge of the dura, and the fiber ring knotter performs the knotting operation. Since the repair of the dura requires more delicate operations to prevent cerebrospinal fluid leakage, the accuracy and stability of these tools can meet the requirements. For example, during spinal surgery, if the dura is accidentally damaged, this collaborative operation can quickly and accurately suture, avoid cerebrospinal fluid leakage, and reduce the risk of postoperative infection and other neurological complications.
Ensure the quality of repair: The knot pusher ensures the appropriate tightness of the knot during the knot fixation process after the dura suture, avoiding suture failure caused by loose knots. This tight suture is of great significance for protecting the spinal cord and nerve tissue and maintaining the normal circulation of cerebrospinal fluid, which helps patients maintain good neurological function after surgery.
Operation precautions and tips
Operation precautions
Visual operation is essential: UBE spinal endoscopic surgery relies on a clear field of vision. When using these tools to suture the annulus fibrosus or dura mater, ensure that the endoscope has a good field of vision and can clearly see the contact position between the tool and the tissue. Otherwise, it is easy to cause damage to the tissue due to misoperation due to lack of vision.
Avoid tissue damage: During the operation, special attention should be paid to avoid damage to nerves, blood vessels, and other important tissues. The space around the annulus fibrosus and dura mater is limited, and tools must be operated with caution. For example, when using a needle holder to thread a needle, ensure that the direction of the needle does not touch the surrounding nerves; during the process of pushing the knot, avoid squeezing the surrounding tissues with excessive force.
Maintenance and inspection of tools: Before the operation, check whether these tools are intact, such as whether the jaws of the needle holder can be clamped normally, whether the heads of the annulus fibrosus knotter and knot pusher are deformed, etc. After the operation, the tools should be properly cleaned and maintained to ensure performance the next time they are used.
Operation tips
Tips for using needle holders: When holding the needle holder, use the correct posture to ensure that the fingers can flexibly control the opening and closing of the jaws. During the needle insertion process, according to the anatomical structure of the surgical site and the image displayed by the endoscope, adjust the angle of the needle holder so that the needle can smoothly pass through the annulus fibrosus or dura mater. You can first bring the tip of the needle close to the target tissue, and then slowly push it forward while keeping the needle stable.
Tips for using the annulus fibrosus knotter: When tying knots, be familiar with the operation method of the annulus fibrosus knotter, and flexibly use the knotter to operate according to the length of the suture and the type of knot to be tied (such as surgical knots, square knots, etc.). Generally, a basic knot is tied first, and then the second knot is tied by rotating or crossing operations. Pay attention to controlling the strength of the knot to avoid suture breakage.
Tips for using the knot pusher: When using the knot pusher, accurately align its head with the tied knot, and then slowly and steadily apply pressure to push the knot toward the annulus fibrosus or dura mater. During the pushing process, observe the position and tightness of the knot, and adjust the direction and strength of the knot push appropriately as needed to ensure that the knot is firmly fixed in the right position.