CN-121987360-A - Intelligent pneumoperitoneum system with dynamic smoke removal and constant pressure functions and use method

CN121987360ACN 121987360 ACN121987360 ACN 121987360ACN-121987360-A

Abstract

The invention provides an intelligent pneumoperitoneum system with dynamic smoke removal and constant pressure functions and a use method thereof, wherein the intelligent pneumoperitoneum system comprises an integrated suction pneumoperitoneum machine and a double-cavity suction device head, the integrated suction pneumoperitoneum machine comprises a shell and a containing space positioned in the shell, and a control module, a gas supply passage and a gas recovery and purification passage are arranged in the shell; the system collects the smoke concentration and pressure signals in the abdominal cavity in real time through a smoke concentration detection module and an outlet pressure gauge which are integrated in the double-cavity channel aspirator head and feeds back to the control module. The control module constructs a closed-loop control algorithm based on an ideal gas state equation, dynamically and cooperatively adjusts the suction power of the suction module and the air inlet rate of the pressure regulating module, and realizes rapid removal of smoke in operation and dynamic stability of pneumoperitoneum pressure. The invention integrates two-stage waste gas filtration, ensures that the discharged gas is harmless, and realizes the integrated guarantee of clear surgical field, consistent operation and patient safety.

Inventors

WANG WEI
WANG JIAHANG
ZENG SHENGTAO

Assignees

中国人民解放军南部战区总医院

Dates

Publication Date: 20260508
Application Date: 20260206

Claims (10)

1. The intelligent pneumoperitoneum system with the dynamic smoke removal and constant pressure functions is characterized by comprising an air suction pneumoperitoneum integrated machine and a double-cavity channel aspirator head, wherein the air suction pneumoperitoneum integrated machine comprises a shell and a containing space positioned in the shell, and a control module, a gas supply channel and a gas recovery and purification channel are arranged in the shell; the gas supply passage includes, in communication: the air inlet end of the pressure regulating module is connected with an external air source interface arranged on the shell; a first gas flow meter for monitoring the flow rate of the supplied gas; A first gas pressure gauge for monitoring the pressure of the supplied gas; the main exhaust switch is used for controlling the on-off of the supplied gas; The heat preservation module is used for heating the supplied gas; The gas recovery and purification passage comprises the following components which are communicated in sequence: the condensing and filtering device is used for condensing and removing oil mist in the recovered gas; the adsorption and filtration device is used for adsorbing and removing harmful substances in the gas; The suction module is used for adjusting suction power according to the control signal; a second gas flow meter for monitoring the flow rate of the recovered gas; the second gas pressure gauge is used for monitoring the pressure of the recovered gas; The control module is respectively and electrically connected with the pressure regulating module, the first gas flowmeter, the first gas pressure gauge, the suction module, the second gas flowmeter and the second gas pressure gauge; And a smoke concentration detection module and an outlet pressure gauge are integrated in the double-cavity-channel aspirator head, are respectively used for detecting the smoke concentration and the pressure in the abdominal cavity in real time, and are in communication connection with the control module.
2. The intelligent pneumoperitoneum system with dynamic smoke removal and constant pressure functions according to claim 1, wherein the double-cavity-channel aspirator head comprises an exhaust cavity channel and an air inlet cavity channel which are arranged in parallel, an air inlet communicated with the air inlet cavity channel and an air outlet communicated with the exhaust cavity channel are arranged at the head end, an air exhaust connecting port and an air inlet sampling port are arranged at the tail end, the smoke concentration detection module is arranged in the exhaust cavity channel, and the outlet pressure gauge is arranged outside the double-cavity-channel aspirator head.
3. The intelligent pneumoperitoneum system with dynamic smoke removal and constant pressure function of claim 1 or 2, wherein the control module is configured to: receiving a smoke concentration signal from the smoke concentration detection module and an abdominal pressure signal from the outlet pressure gauge; When the smoke concentration signal exceeds a preset threshold value, controlling the suction module to increase suction power; Based on an ideal gas state equation, dynamically adjusting the air inlet rate of the pressure regulating module according to the abdominal pressure signal, air inlet end data fed back by the first gas flowmeter and the first gas pressure gauge and air outlet end data fed back by the second gas flowmeter and the second gas pressure gauge so as to maintain the abdominal pressure within a target range of 10-15 kPa.
4. The intelligent pneumoperitoneum system with dynamic smoke removal and constant pressure functions according to claim 1, wherein the condensation filtering device comprises an inner airflow channel and a condensation sheet channel which are isolated from each other, the inner airflow channel is connected in series in the gas recovery and purification channel and is used for circulating and condensing recovered gas containing smoke, an air inlet end of the condensation sheet channel is communicated with an air outlet end of the pressure regulating module and is used for circulating clean low-temperature CO 2 gas to provide a cold source, and the air outlet end of the condensation sheet channel is connected into the gas supply channel.
5. The intelligent pneumoperitoneum system with dynamic smoke removal and constant pressure functions of claim 1, wherein the adsorption filtration device comprises a filter core area filled with activated carbon and/or molecular sieve adsorption material.
6. The intelligent pneumoperitoneum system with dynamic smoke eliminating and constant pressure functions of claim 1, wherein the heat preservation module is a PID temperature control heating device for heating the supplied gas to 37 ± 2 ℃.
7. The intelligent pneumoperitoneum system with dynamic smoke removal and constant pressure functions according to claim 1, further comprising a compound module, wherein the compound module is integrated with the total exhaust switch, the safety exhaust switch, the first gas flowmeter, the first gas pressure gauge, the second gas flowmeter and the second gas pressure gauge, an air inlet end of the safety exhaust switch is communicated with an internal air circuit of the first gas flowmeter, and an air outlet end of the safety exhaust switch is communicated with the atmosphere.
8. The intelligent pneumoperitoneum system with the dynamic smoke removal and constant pressure functions according to claim 1, further comprising a display panel and an operation panel, wherein the display panel and the operation panel are electrically connected with the control module, the display panel is used for displaying gas flow, pressure, smoke concentration and temperature parameters in real time, and the operation panel is used for setting control parameters and performing manual operation.
9. A dual-lumen aspirator tip for use with an intelligent pneumoperitoneum system having dynamic smoke abatement and constant pressure functions as described in any one of claims 1-8, comprising: The head end is provided with an air inlet and an air outlet; the tail end is provided with an exhaust connection port and an air inlet sampling port; the inside is provided with a gas exhaust cavity channel and a gas inlet cavity channel which are parallel; the exhaust cavity is internally integrated with a smoke concentration detection module for detecting the smoke concentration in real time, and the outer side of the double-cavity aspirator head is integrated with an outlet pressure gauge for detecting the pressure in real time; The double-channel aspirator head is also provided with a display screen for displaying the current pressure and smoke concentration.
10. A pneumoperitoneum pressure and smog cooperative control method for laparoscopic surgery, which adopts the intelligent pneumoperitoneum system with dynamic smoke removal and constant pressure functions as claimed in any one of claims 1 to 8, and is characterized by comprising the following steps: s1, acquiring a smoke concentration signal C (t) and a pressure signal P (t) in an abdominal cavity in real time through a sensor integrated in a head of the double-cavity channel aspirator; S2, judging whether C (t) exceeds a preset threshold C th , if so, controlling the suction module to increase the suction power so as to strengthen smoke removal; S3, calculating the gas compensation quantity required for maintaining the target pressure by utilizing an ideal gas state equation based on the difference value between the P (t) and the target pressure P target and combining the real-time gas flow and pressure data of the air inlet end and the air outlet end; and S4, dynamically adjusting the air inlet rate of the pressure regulating module to enable pneumoperitoneum pressure to be stabilized in the target range in cooperation with the action of the suction module.

Description

Intelligent pneumoperitoneum system with dynamic smoke removal and constant pressure functions and use method Technical Field The invention relates to the technical field of medical equipment, in particular to an intelligent pneumoperitoneum system with dynamic smoke removal and constant pressure functions and a use method thereof. Background Laparoscopic surgery relies on a continuous, stable pneumoperitoneum space. The existing pneumoperitoneum machine has basic pressure maintaining and gas heating functions, but has obvious defects in the aspect of operation smoke treatment that smoke accumulation causes blurred operation fields, the traditional suction mode has lag response and causes pressure dip, and the operation safety and consistency are affected. The existing system lacks a real-time sensing and intelligent linkage control mechanism for smoke concentration, most of pressure regulation is passive response, and real dynamic constant pressure is difficult to realize. Disclosure of Invention The invention aims to provide an intelligent pneumoperitoneum system with dynamic smoke removal and constant pressure functions and a use method thereof, which can sense smoke concentration in real time, intelligently adjust suction and air intake and realize dynamic smoke removal and constant pressure maintenance. According to one object of the invention, the invention provides an intelligent pneumoperitoneum system with dynamic smoke removal and constant pressure functions, which comprises an attracting pneumoperitoneum integrated machine and a double-cavity channel aspirator head, wherein the attracting pneumoperitoneum integrated machine comprises a shell and a containing space positioned in the shell, and a control module, a gas supply passage and a gas recovery and purification passage are arranged in the shell; the gas supply passage includes, in communication: the air inlet end of the pressure regulating module is connected with an external air source interface arranged on the shell; a first gas flow meter for monitoring the flow rate of the supplied gas; A first gas pressure gauge for monitoring the pressure of the supplied gas; the main exhaust switch is used for controlling the on-off of the supplied gas; The heat preservation module is used for heating the supplied gas; The gas recovery and purification passage comprises the following components which are communicated in sequence: the condensing and filtering device is used for condensing and removing oil mist in the recovered gas; the adsorption and filtration device is used for adsorbing and removing harmful substances in the gas; The suction module is used for adjusting suction power according to the control signal; a second gas flow meter for monitoring the flow rate of the recovered gas; the second gas pressure gauge is used for monitoring the pressure of the recovered gas; The control module is respectively and electrically connected with the pressure regulating module, the first gas flowmeter, the first gas pressure gauge, the suction module, the second gas flowmeter and the second gas pressure gauge; And a smoke concentration detection module and an outlet pressure gauge are integrated in the double-cavity-channel aspirator head, are respectively used for detecting the smoke concentration and the pressure in the abdominal cavity in real time, and are in communication connection with the control module. Further, the dual-channel aspirator head comprises an exhaust channel and an air inlet channel which are arranged in parallel, the head end is provided with an air inlet communicated with the air inlet channel and an air outlet communicated with the exhaust channel, the tail end is provided with an exhaust connecting port and an air inlet sampling port, the smoke concentration detection module is arranged in the exhaust channel, and the outlet pressure gauge is arranged on the outer side of the dual-channel aspirator head. Further, the control module is configured to: receiving a smoke concentration signal from the smoke concentration detection module and an abdominal pressure signal from the outlet pressure gauge; When the smoke concentration signal exceeds a preset threshold value, controlling the suction module to increase suction power; Based on an ideal gas state equation, dynamically adjusting the air inlet rate of the pressure regulating module according to the abdominal pressure signal, air inlet end data fed back by the first gas flowmeter and the first gas pressure gauge and air outlet end data fed back by the second gas flowmeter and the second gas pressure gauge so as to maintain the abdominal pressure within a target range of 10-15 kPa. Further, the condensation filtering device comprises an internal airflow channel and a condensation sheet channel which are isolated from each other, wherein the internal airflow channel is connected in series in the gas recovery and purification passage and is used for circulating and condensing reco