Robot and CO2 pneumoperitoneum device for removing smoke at constant pressure for laparoscopic surgery
By designing a CO2 pneumatic abdominal device with constant pressure removal, and using the airflow circulation channel formed by a check valve and filter, the abdominal pressure unstable and harmful smoke emission problems caused by electric knife operation are solved, and surgical safety and health protection are achieved.
Patent Information
- Application Number
- CN202422012826.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-20
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-08-20
AI Technical Summary
During robotic and laparoscopic surgery, smoke generated by electrocution operations affects the surgical field of view, resulting in unstable abdominal pressure, unstable air pressure cannot reveal the surgical field, and the harmful components in the smoke endanger health.
A CO2 pneumatic and abdominal device with constant pressure smoke removal is designed, including a CO2 pneumatic and air supply puncturer, a smoke exhaust puncturer, a smoke return puncturer, a connecting pipe and a filter. The airflow circulation channel is formed through a check valve and a filter. The smoke is filtered through the smoke exhaust puncturer and flows back to the abdominal cavity to maintain the stability of the pneumatic and air pressure.
It achieves stabilization of pneumoperitoneal pressure during surgery, ensures clear vision of the surgical field, avoids harmful smoke from being discharged into the operating room, and protects the health of patients and medical staff.
Smart Images
Figure CN223126570U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of medical auxiliary products, in particular to a CO2 pneumoperitoneum device with constant pressure and smoke removal for robot and laparoscopic surgery. Background Art
[0002] In robotic and laparoscopic surgeries, artificial pneumoperitoneum is first established, and medical CO2 gas is infused into the abdominal cavity using a pneumoperitoneum machine. The CO2 gas separates the patient's abdominal wall from the internal organs, providing sufficient operating space for surgery and preventing damage to the internal organs when the puncture cannula penetrates the abdominal cavity. When the predetermined pressure is reached, the air intake can be automatically stopped, and a certain amount of gas is maintained to keep the abdominal cavity at the predetermined pressure. When an electric knife is used during surgery, a large amount of smoke will be generated, affecting the surgical field of view. A puncture device is required to aspirate and expel it from the body. At this time, not only does the abdominal pressure drop sharply, the air pressure is unstable and the surgical field cannot be exposed, but the smoke is directly discharged into the operating room. The gas contains a large amount of harmful components, which is harmful to the health of patients and operating room staff. Utility Model Content
[0003] In response to the problems existing in the prior art, the utility model provides a CO2 pneumoperitoneum device with constant pressure smoke removal for robot and laparoscopic surgery. The airflow in the pneumoperitoneum provides an abdominal airflow circulation channel that communicates with the smoke exhaust puncture device and the smoke return puncture device. The CO2 carrying smoke in the abdominal cavity flows unidirectionally through the smoke exhaust puncture device and the filter, and then flows back into the abdominal cavity from the smoke return puncture device after purification. The CO2 gas is not lost, and the pneumoperitoneum pressure is stabilized, ensuring that the operation is safe and rapid.
[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0005] A CO2 pneumoperitoneum device with constant pressure smoke removal for robotic and laparoscopic surgery includes a CO2 pneumoperitoneum machine, an air supply puncture, a smoke exhaust puncture, a smoke return puncture, a connecting tube and a filter. The CO2 pneumoperitoneum machine is connected to the air supply puncture, the smoke exhaust puncture and the smoke return puncture are connected through a connecting tube, a filter is installed on the connecting tube, the switch valve in the smoke exhaust puncture is a one-way valve for outward flow, and the switch valve in the smoke return puncture is a one-way valve for inward flow.
[0006] A further improvement is that the filter is a three-chamber filter tube set. The commercially available AirSeal three-chamber filter tube set ASM-EVAC is selected to optimize gas flow, promote smoke removal and filter ultrafine particles of 0.01 microns.
[0007] A further improvement is that a pressure sensor is provided on the pipeline connecting the CO2 insufflator and the gas supply puncture device near the gas supply puncture device. When the pressure in the insufflator is lower than a predetermined pressure, the CO2 insufflator is activated to supply gas.
[0008] A further improvement is that a smoke sensor is arranged on the connecting pipe close to the smoke extraction puncture device. When the smoke generated in the pneumoperitoneum during robot-assisted and laparoscopic surgeries reaches a certain concentration, exceeding the threshold of the smoke sensor, it can quickly sense and trigger the opening of the valves of the smoke extraction puncture device and the smoke return puncture device, forming a circulation filtration system.
[0009] A further improvement is that a constant temperature device is installed at the end of the connecting pipe close to the smoke return puncture device, ensuring that the temperature of the gas flowing back into the abdominal cavity is maintained at about 37°C. Beneficial effects
[0010] In the present utility model, the CO2 insufflator, the gas supply puncture device, the smoke extraction puncture device, the smoke return puncture device, the connecting pipe and the filter form a pressure stabilizing system with the abdominal cavity. The smoke in the abdominal cavity is discharged, filtered and purified, and then the CO2 gas flows back into the abdominal cavity, minimizing the loss of CO2 gas and ensuring the stable pressure of the pneumoperitoneum. Description of the drawings
[0011] Figure 1 It is a schematic structural diagram of the present utility model;
[0012] Figure 2 It is a schematic structural diagram of the filter. Specific implementation manners
[0013] As Figure 1 、 Figure 2 shown, the present utility model includes a CO2 insufflator 1, a gas supply puncture device 2, a smoke extraction puncture device 3, a smoke return puncture device 4, a connecting pipe 5, a filter 6, a pressure sensor 7, a smoke sensor 8, and a constant temperature device 9. The CO2 insufflator 1 is connected to the gas supply puncture device 2. The smoke extraction puncture device 3 and the smoke return puncture device 4 are connected through the connecting pipe 5. A filter 6 is installed on the connecting pipe 5. The on-off valve in the smoke extraction puncture device 3 is a one-way valve for outward flow, and the on-off valve in the smoke return puncture device 4 is a one-way valve for inward flow.
[0014] The filter 6 is a three-chamber filter tube group. The filter of this device uses a commercially available AirSeal three-chamber filter tube group ASM-EVAC.
[0015] A pressure sensor 7 is arranged on the pipeline connecting the CO2 insufflator and the gas supply puncture device, close to the gas supply puncture device.
[0016] A smoke sensor 8 is arranged on the connecting pipe 5 close to the smoke return puncture device.
[0017] A constant temperature device 9 is installed at the end of the connecting pipe 5 close to the smoke return puncture device.
[0018] The CO2 insufflator 1 fills the abdominal cavity with CO2 gas through the gas supply trocar 2 to reach the preset pressure. When the smoke generated in the pneumoperitoneum by the electrosurgical knife during the operation reaches a certain threshold, the valves of the smoke exhaust trocar 3 and the smoke return trocar 4 are opened. Since the valves are unidirectional, the CO2 gas with smoke passes through the filter 6 from the smoke exhaust trocar 3 and flows back into the abdominal cavity from the smoke return trocar 4, without the loss of CO2 gas, and stabilizes the pressure in the pneumoperitoneum.
[0019] The above is only the preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the idea of the present invention belong to the protection scope of the present invention. It should be noted that for those of ordinary skill in the art, several improvements and refinements made without departing from the principle of the present invention should also be regarded as within the protection scope of the present invention.
Claims
1. A CO2 pneumoperitoneum device with constant-pressure smoke removal for robots and laparoscopic surgeries, characterized in that: It includes a CO2 insufflator (1), a gas supply trocar (2), a smoke exhaust trocar (3), a smoke return trocar (4), a connecting pipe (5) and a filter (6). The CO2 insufflator (1) is connected to the gas supply trocar (2). The smoke exhaust trocar (3) and the smoke return trocar (4) are communicated through the connecting pipe (5). The filter (6) is installed on the connecting pipe (5). The switching valve in the smoke exhaust trocar (3) is a one-way valve for outward flow, and the switching valve in the smoke return trocar (4) is a one-way valve for inward flow.
2. The robot and the CO2 pneumoperitoneum device for constant-pressure smoke removal in laparoscopic surgery according to claim 1, characterized in that: The filter (6) is a three-chamber filter tube group.
3. The robot and the CO2 pneumoperitoneum device for constant-pressure smoke removal in laparoscopic surgery according to claim 1, characterized in that: A pressure sensor (7) is provided on the pipeline connecting the CO2 insufflator and the gas supply trocar near the gas supply trocar.
4. The robot and the CO2 pneumoperitoneum device with constant-pressure smoke removal for laparoscopic surgery according to claim 1, characterized in that: A smoke sensor (8) is provided on the connecting pipe (5) near the smoke return trocar.
5. The robot and the CO2 pneumoperitoneum device with constant-pressure smoke removal for laparoscopic surgery according to claim 1, characterized in that: A temperature control device (9) is installed at the end of the connecting pipe (5) near the smoke return trocar.