Technical field of laparoscopic trocar
Laparoscopic trocar refers to a laparoscopic trocar, which belongs to the field of medical instruments. It is a supporting surgical instrument for laparoscopy, which is suitable for laparoscopy and the establishment of surgical working channels.
When the laparoscopic trocar is used, it is equipped with a puncture cone 13. As a supporting surgical instrument for laparoscopy, the laparoscopic trocar should first establish pneumoperitoneum, then cut a small incision at the appropriate position of the abdomen, fix the laparoscopic trocar on the abdomen raised by pneumoperitoneum with hands at a suitable angle, and insert the puncture sleeve 2-2 of the laparoscopic trocar together with the puncture cone into the small incision, Press and hold the cap of the puncture cone handle of the puncture cone with your hand to wrap the upper cover and press it down. With the puncture cone penetrating the lower layer of soft tissue with a front-end puncture bayonet, enter the soft tissue together with the oblique section with a taper at the lower part of the puncture sleeve.
When the puncture knife cone passes through the soft tissue of the patient's abdomen until it reaches the abdominal cavity, at this time, the puncture sleeve is inserted into the abdominal cavity with the puncture cone until it reaches Part 2-2 of the puncture sleeve. Pull the puncture cone 13 out of the puncture sleeve 2-2, open the valve switch 7 on the upper part of the gas injection valve 6, and the gas is injected into the abdominal cavity of the patient from the puncture sleeve 2-2 through the air inlet, valve core and valve body of the gas injection valve, so that the abdominal cavity of the patient is bulging, close the valve switch 7, and the abdominal surgery instruments can enter the puncture sleeve 2-2 from the locking cap 1, sealing ring 12, sleeve elastic sealing cap 3-1 and gas blocking sealing cap 5 of the laparoscopic trocar, And it is inserted into the abdominal cavity through the puncture sleeve 2-2. Due to the multiple seals such as the sealing ring 12, the sleeve elastic sealing cap 3-1, and the gas blocking sealing cap 5, the sealing abdominal surgery instrument has good performance, and the gas injected into the abdominal cavity will not leak.
The positioning ring 8 and air bag 11, which clamp the puncture sleeve 2-2 from the inside and outside of the human body respectively, are used. When the puncture device penetrates into the human body, it is firmly fixed and will not shake. It is not easy to fall off during the operation. The clamping position can be easily adjusted through the positioning ring 8 made of elastic soft material. After the operation, pull the surgical instrument out of the laparoscopic trocar, open the valve switch 7, and discharge the injected gas in the patient's abdominal cavity from the exhaust port of the gas injection valve. After the injected gas is discharged, press the valve core 9-3 of the one-way valve 9 to discharge the gas filled in the airbag 11, and then take out the puncture sleeve 2-2 from the patient's cavity wall to pull the laparoscopic trocar out of the patient's abdominal cavity.
Post time: Jul-18-2022
