The laparoscopic trocar relates to a laparoscopic trocar, which includes a shell (5) for placing a sealing component. The right end of the shell (5) is provided with a puncture shell (8), and a puncture rod (7) extends from the left end of the shell (5) and passes through the sealing component in the shell (5) into the puncture shell (8). It is characterized in that a three flap seal (6) is arranged in the right half of the shell (5), A positioning sleeve (4) is arranged in the left shell (5) of the three lobe seal (6), a spherical seal (3) is arranged in the left shell (5) of the positioning sleeve (4), a spherical seal seat (2) is arranged at the left end port of the shell (5) to match with the spherical seal (3), and the spherical seal seat (2) is provided with a through hole that penetrates axially. The beneficial effect of the invention is that the spherical elastic seal in the spherical seal seat can effectively prevent the deformation of the seal caused by the puncture rod in motion, and can make the puncture rod play a sealing role when it rotates and moves axially relative to the puncture shell, especially when the puncture rod is taken out, the three flap seal can be effectively sealed, so as to effectively avoid the leakage of gas in the abdominal cavity caused by the rotation and removal of surgical instruments.
Patent background of laparoscopic trocar
The puncture device is a surgical instrument that penetrates the abdominal wall and provides access to the body cavity for other surgical instruments, belonging to a minimally invasive surgical instrument. Before August, 2011, the puncture device was a single hole straight tube structure, which was easy to swing during use, and it would seriously come out of the human body, which would delay the operation process, affect the operation process due to the slippage of the puncture device, aggravate the trauma of the operation patient, and delay the recovery of the patient.
As of August, 2011, in order to solve the problems existing in the existing technology, a patent application "balloon puncture device" has been filed, which includes a puncture sleeve, a puncture sleeve and a puncture rod inserted in the puncture sleeve. The puncture sleeve includes a cylindrical hard sleeve body, one end of the hard sleeve body is provided with a sleeve seat for the puncture rod to pass through, and a soft film coated sleeve body made of soft material is sleeved on the outer side of the hard sleeve body. The circumferential outer side of the soft film covering sleeve is sleeved with a restraint structure which can restrain the circumferential outer side of the soft film covering sleeve to prevent its circumferential expansion. The circumferentially outer side of the soft film covering sleeve is restrained by the restraint structure, which prevents the soft film covering sleeve from circumferentially expanding when the balloon is inflated or filled with liquid, so that the balloon can be inflated smoothly, so as to achieve the purpose of firm fixation. The complex structure of the utility model affects the soft film covered sleeve body to restrict the sleeve body from being spliced with each other, which makes the processing difficult and increases the use effect of the puncture sleeve diameter.
Invention content of laparoscopic trocar
Patent purpose of laparoscopic trocar
The purpose of the laparoscopic trocar is to provide a laparoscopic trocar for the above shortcomings. It has a locking cap, puncture sleeve assembly, locking cap assembly, locking switch, gas blocking seal cap, gas injection valve, gas injection switch, positioning ring, one-way valve, sealing patch, air bag, compact structure, safe and effective use, which can greatly reduce the wound area in clinical surgery, greatly shorten the operation time, and facilitate operation, Reduce the bleeding and postoperative infection of patients, and improve the quality of surgery. The postoperative pain is light and the healing is fast. Due to the fixed structure of clamping the puncture device from the inside and outside of the human body, such as the positioning ring and the air bag, the puncture device is firmly fixed after penetrating the human body, which is not easy to fall off during the operation, and the clamping position can be easily adjusted through the positioning ring made of elastic soft material.
Illustration of laparoscopic trocar
Figure 1 is the schematic diagram of laparoscopic trocar.
Figure 2 is an exploded view of the structure of the invention.
Figure 3 is the structural diagram of the locking cap of the invention.
Fig. 4 is the structural diagram of the puncture sleeve assembly of the invention.
Fig. 5 is the structural diagram of the locking cap assembly of the invention.
Fig. 6 is the structural diagram of the gas seal cap of the invention.
Fig. 7 is the structural diagram of the locking switch of the invention.
Fig. 8 is the structural diagram of the sealing patch of the invention.
Fig. 9 is the structural diagram of the sealing ring of the invention.
In the figure: 1. Locking cap, 2. Puncture sleeve assembly, 3. Locking cap assembly, 4. Locking switch, 5. Gas blocking seal cap, 6. Gas injection valve, 7. Gas injection switch, 8. Locating ring, 9. Check valve, 10. Sealing patch, 11. Airbag, 12. Sealing ring, 13. Puncture cone; 2-1. Puncture casing base, 2-2. Puncture casing, 2-2. Puncture casing, 2-3. Ventilation groove, 2-4. Wiring groove, 2-5. Gas blocking seal cap installation groove, 2-6. Locking seal cap assembly installation groove; 3-1. Casing elastic sealing cap, 3-2. Casing sealing cap mounting base, 3-3. Lock the fixed cover; 9-1. Valve body, 9-2. Valve seat, 9-3. Valve core, 9-4. Sealing ring, 9-5. Spring; 10-1. Fixing block, 10-2. Binding slot, 10-3. Air outlet, 10-4. Gas transmission slot, 12-1. Locking hook.
Post time: Jul-11-2022
