The 21st century is an era of minimally invasive techniques. Surgical methods have evolved from traditional open surgery to laparoscopic surgery. As an essential medical instrument for laparoscopic surgery, it's crucial to fully understand the operating steps and precautions for using a laparoscopic instruments trocar.
Open the package and take out the contents.
Create artificial pneumoperitoneum: At a point 1 cm above the navel, insert the pneumoperitoneum needle into the abdomen. Once the needle is confirmed to be in the free abdominal cavity, activate the insufflator to inject carbon dioxide gas into the abdomen, forming an artificial pneumoperitoneum.
Establish the surgical channels: Depending on the surgical requirements, make 2-4 surgical incisions of 5-12 mm, usually selecting the area above or below the navel for the pneumoperitoneum. Place the palm against the tip of the trocar needle, fingers closely touching the trocar sheath, and rotate the wrist with force (do not use the shoulder or elbow) to pierce the abdominal wall and insert the trocar sheath. After piercing, remove the trocar needle.
Connect the optical system: Connect the laparoscope to the cold light source, TV camera system, video recording system, and printing system, and insert it into the abdomen through the trocar sheath. The optical digital conversion system reflects the internal abdominal images onto the TV screen.
Perform the surgery: Based on the images reflected on the screen by the optical digital conversion system, insert laparoscopic surgical instruments into the abdomen through the trocar sheath to perform the surgery.
Grasping technique for the laparoscopic instruments trocar: The base of the laparoscopic instruments trocar should be placed against the thenar muscle, with the index or middle finger pressing as far as possible on the tip of the sheath. The insertion should be shallow to prevent deep penetration.
Piercing force: Apply appropriate force during piercing to ensure that the trocar can be held at any point, achieving shallow penetration.
The pneumoperitoneum needle or laparoscopic instruments trocar should be at a 90° angle to the abdominal wall during penetration. After passing through the fascia and reaching the peritoneum, adjust the angle to 45°.
Avoid using excessive force. If the patient's abdominal wall is particularly tough and difficult to pierce in one go, take a short break and try again. Avoid being reckless.
Ensure sufficient intra-abdominal pressure.
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