As a core instrument in minimally invasive laparoscopic surgery, every detail of its design is aimed at improving the precision, efficiency and safety of the procedure. In particular, the integrated design of the trocar mouth structure and its sealing valve provides a series of unique and critical advantages in the removal of surgical residues and human tissues left in the abdominal cavity. The following is a comprehensive integration and analysis of these advantages.

I. Bevelled opening design: optimising tissue removal paths

The 45° bevelled opening at the tip of the introducer's sheath is an innovation designed to optimise access to surgical instruments and the removal of residual tissue. This design not only facilitates the smooth passage of surgical instruments, but more importantly, it guides the tissue into the sheath more efficiently, reducing the prolongation of surgical time due to tissue jamming or difficulty in access. The guiding nature of the bevelled opening enables the surgeon to more accurately locate and remove the residual tissue during the operation, reducing the risk of injury during the procedure.

II, knife-less blunt separation technology: protect tissue, reduce damage

The transparent conical design of the tip of the applicator core combined with the knife-less blunt separation technology is another important design innovation. This technique significantly reduces damage to the abdominal wall and blood vessels by expanding and holding the tissue open rather than cutting it, reducing the risk of bleeding and complications. The transparent tapered design also allows the surgeon to control the abdominal wall puncture process under direct vision, further improving the precision and safety of the procedure. When removing residual tissue, the blunt separation technique gently separates tissue-to-tissue adhesions and protects surrounding healthy tissue from damage.

III. Design for enhanced fixation: ensuring surgical stability

The frosted threads or barbs on the outer wall of the introducer sheath are designed to enhance abdominal wall fixation and prevent the sheath from accidentally falling off or shifting during surgery. This design is particularly important for the removal of residual tissue, as it ensures that the sheath remains in a stable position, giving the surgeon peace of mind that the procedure is being performed with precision. Stable fixation of the sheath not only improves the smoothness of the operation, but also ensures the safety of the surgeon during complex operations.

Ⅳ.Flexible operating platform design: adapting to the needs of multi-angle operation

Some puncture instruments are equipped with a 360° rotatable operating platform, which allows the surgical instruments to be flexibly adjusted in the abdominal cavity to meet the needs of residual tissue removal in different locations. The surgeon can easily adjust the angle of the instrument to more accurately locate and remove the tissue without the need to frequently change the puncture point, thus shortening the operation time and reducing patient trauma.

V. Ergonomic handle design: enhancing operating comfort

The ergonomic design of the puncture device's grip is designed to provide a comfortable surgical experience. This design reduces the operating burden on the surgeon, enabling the surgeon to maintain a stable operating state during long operations and reducing operating errors caused by fatigue. When removing residual tissue, the stable operating state helps to improve the accuracy and efficiency of the operation and protect patient safety.

Convenient opening of the integrated sealing valve structure: simplify operation and improve efficiency.

The design of the integrated structure of the sealing valve of the puncture device cleverly combines the sealing and valve functions together, avoiding the cumbersome assembly of multiple components in the traditional design. This integrated design not only improves the overall stability and reliability of the instrument, but also greatly simplifies the operation steps during the procedure through convenient opening functions, such as rotary and push-button. The surgeon can quickly and accurately open the sealing valve to efficiently remove residual tissue without spending too much time on opening and closing the sealing valve. This design not only improves surgical efficiency, but also reduces the risk of complications due to operational errors, optimising the patient's surgical experience and recovery.

In summary, the advantages of Donho's design in removing surgical residues and human tissues from the abdominal cavity are reflected in the optimised path of the bevelled opening, the tissue protection of the knife-less blunt separation technology, the stable design with enhanced fixation, the multi-angle adaptability of the flexible operating platform, the ergonomic comfort of the handle, and the easy opening of the integrated sealing valve structure. The advantages of this technology are Together, these advantages enhance the precision, efficiency and safety of surgery, providing a solid technical guarantee for the successful implementation of minimally invasive laparoscopic surgery, and at the same time bringing patients a higher quality medical service experience.