Smoke removing device for abdominal surgery

Abstract

An air inlet, a smoke sensor, an air pump and an electromagnetic three-way air valve are sequentially communicated in series, and the electromagnetic three-way air valve is communicated with a filtering device and a low-pressure exhaust port; a pneumoperitoneum machine connecting port and an air outlet are respectively communicated with a second interface and a third interface of the three-way pipe; wherein the main control board is electrically connected with the smoke sensor and the electromagnetic three-way air valve respectively, and the main control board receives a signal of the smoke sensor and controls one end of the electromagnetic three-way air valve to be in a closed state, so that smokeless gas entering the smoke removal device is directly discharged from the air outlet; or the other end of the electromagnetic three-way gas valve is controlled to be in a closed state, so that the smoke gas is filtered by the filtering device and discharged at low pressure. Smoke detection is carried out through the smoke sensor, reversing of the three-way valve is controlled through the main control board, gas with different smoke concentrations enters different pipelines to be classified, and meanwhile the problem of multi-person cooperation in the smoke exhaust process is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of laparoscopic surgical treatment equipment, in particular to a laparoscopic surgical smoke removal device. BACKGROUND

[0002] Laparoscopic surgery belongs to the field of surgical technology, and involves the use of high-frequency knives and other surgical instruments to generate smoke during laparoscopic surgery. The smoke generated during laparoscopic surgery not only hinders the line of sight of the surgical personnel through the endoscope, but also contains lipid substances in the smoke, which can adhere to the endoscope lens. If it adheres to the lens, the medical personnel need to remove the endoscope from the body multiple times, and repeatedly clean the lens by flushing and wiping. This process greatly increases the operation time and risk. The gas excluded may contain toxic substances, which may also have long-term potential harm to the health of the surgical medical personnel.

[0003] During the operation, a corresponding surgical smoke removal system should be provided to reduce the potential risk. Most of the existing surgical procedures are performed by connecting a glass bottle containing physiological saline outside the hose (the outside of the hose has a flow regulator) to form a negative pressure, and then performing smoke removal. This form of smoke removal is relatively simple and requires multiple people to coordinate to complete it. It does not form a systematic smoke removal, and the smoke removed contains more or less toxic substances. SUMMARY

[0004] The purpose of the present application is to provide a laparoscopic surgical smoke removal device, which aims to overcome the defects of the prior art and solve the problem of smoke hindering the field of view or lipid substances adhering to the endoscope lens during the operation of medical personnel.

[0005] To this end, the present application provides a laparoscopic surgical smoke removal device, which comprises a gas pump, a smoke sensor, an electromagnetic three-way air valve, a three-way pipe, a filter device, a main control board and a low-pressure exhaust port; it also has an air inlet, a gas insufflation machine connection port and an air outlet; the air inlet, the smoke sensor, the gas pump and the electromagnetic three-way air valve are sequentially connected in series, the second interface of the electromagnetic three-way air valve is connected with the filter device and the low-pressure exhaust port through an air pipe in sequence, the third interface of the electromagnetic three-way air valve is connected with the three-way pipe, and the gas insufflation machine connection port and the air outlet are connected with the second interface and the third interface of the three-way pipe, respectively. The main control board is electrically connected with the smoke sensor and the electromagnetic three-way air valve, respectively, the main control board receives the signal of the smoke sensor and controls one end of the electromagnetic three-way air valve to be in a closed state, so that the smoke-free gas entering the smoke removal device is directly discharged from the air outlet; or controls the other end of the electromagnetic three-way air valve to be in a closed state, so that the smoke-containing gas is filtered by the filter device and discharged at low pressure.

[0006] As a preferred technical scheme of the present application, the device comprises a main control device and a disposable circulation device; wherein the air pump, the smoke sensor, the electromagnetic three-way air valve, the three-way pipe, the air inlet, the insufflation machine connecting port and the air outlet are arranged on the circulation device; the filter device, the main control board and the low-pressure air outlet are arranged on the main control device.

[0007] As a preferred technical scheme of the present application, the circulation device is provided with a smoke outlet connected with the second interface of the electromagnetic three-way air valve, the main control device is provided with a smoke inlet connected with the filter device, and the smoke inlet and the smoke outlet are communicated through the air pipe.

[0008] As a preferred technical scheme of the present application, the main control device comprises a data transmission socket one, the circulation device comprises a data transmission socket two, and the data transmission socket two is electrically connected with the data transmission socket one.

[0009] As a preferred technical scheme of the present application, the main control device comprises a liquid crystal display screen and a power switch, and the liquid crystal display screen is electrically connected with the main control board.

[0010] As a preferred technical scheme of the present application, the components in the circulation device are communicated through a plurality of PU air pipes.

[0011] As a preferred technical scheme of the present application, the smoke sensor is arranged in a sensor detection box, and the sensor detection box is communicated with the air pump and the air inlet at two ends.

[0012] As a preferred technical scheme of the present application, the air inlet is connected with the human body through the gas interface of the puncture device, the air outlet is connected with the insufflation needle, and the insufflation machine connecting port is connected with the insufflation machine.

[0013] As a preferred technical scheme of the present application, the smoke sensor is an MQ-2 smoke concentration sensor, and an AD signal is collected.

[0014] As a preferred technical scheme of the present application, the main control board comprises an ADC0832 chip, the ADC0832 chip outputs VSS to Air_Valve_CTL, the triode is in a blocking state, the D409 field effect tube voltage does not pass through, the normally closed three-way electromagnetic air valve is in an open internal circulation pipeline state, the ADC0832 chip outputs VDD to Air_Valve_CTL, the triode is in a conducting state, the D409 field effect tube controls the Air_Valve output voltage to be open, and the normally closed three-way electromagnetic air valve is in a closed internal circulation pipeline state.

[0015] The abdominal surgery smoke removing device provided by the application solves the problems that smoke hinders the field of vision or that lipid substances in the smoke adhere to the endoscope during the operation of medical staff. Smoke is detected by a smoke sensor, and a three-way valve is controlled to change direction by a main control board. Different smoke concentrations of gas enter different pipelines for classification processing. The problems of multiple people cooperating during smoke exhaust and the problem of toxic substances in the exhaust gas affecting the health of medical staff are solved. The use of a disposable circulating device also indirectly solves the problem of reducing the service life of the endoscope due to the repeated wiping of the mirror surface due to the adhesion of lipid substances on the mirror surface.

[0016] In addition to the purposes, features and advantages described above, the present application has other purposes, features and advantages. The present application will be further described below with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0017] The drawings accompanying the specification of this application form a part thereof, serve to provide further understanding of the application, and together with the description of the exemplary embodiments of the application, serve to explain the application, and do not constitute improper limitations on the application. In the drawings: Figure 1 The internal structure of the circulating device in the abdominal surgery smoke removing device of the application is shown in the figure; Figure 2 The three-dimensional structure of the circulating device in the abdominal surgery smoke removing device of the application is shown in the figure; Figure 3 The internal structure of the main control device in the abdominal surgery smoke removing device of the application is shown in the figure; Figure 4 The three-dimensional structure of the main control device in the abdominal surgery smoke removing device of the application is shown in the figure; Figure 5 The circuit control structure of the abdominal surgery smoke removing device of the application is shown in the figure; Figure 6 The gas flow of the abdominal surgery smoke removing device of the application is shown in the figure Figure 1 ; Figure 7 The gas flow of the abdominal surgery smoke removing device of the application is shown in the figure Figure 2 ; Figure 8 The circuit diagram of the air pump and air valve in the abdominal surgery smoke removing device of the application is shown in the figure; Figure 9 The circuit diagram of the smoke sensor in the abdominal surgery smoke removing device of the application is shown in the figure; Figure 10 The circuit diagram of the power supply circuit in the abdominal surgery smoke removing device of the application is shown in the figure; Figure 11 The circuit diagram of the MCU in the abdominal surgery smoke removing device of the application is shown in the figure; REFERENCE NUMERALS 1. Air inlet; 2. Sensor detection box; 3. Air pump; 4. Electromagnetic three-way valve; 5. Smoke outlet; 6. Insufflator connection port; 7. T-connector; 8. PU air hose; 9. Air outlet; 10. Smoke sensor; 11. Main control board; 12. Low-pressure exhaust port; 13. Filter device; 14. Smoke inlet; 15. Power switch; 16. LCD display; 17. Data transmission socket one; 18. Data transmission socket two; 50. Circulation device; 60. Main control device; 70. Insufflator. Detailed Implementation

[0018] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0019] like Figures 1-5 As shown, the abdominal surgery smoke removal device of the present invention mainly comprises two parts: a main control device 60 and a disposable circulation device 50. The circulation device includes an air pump 3, a smoke sensor 10, a sensor detection box 2, an electromagnetic three-way valve 4, a three-way pipe 7, a second data transmission socket 18, and several PU air tubes 8. The main control device mainly includes a filter device 13, a smoke inlet 14, an LCD screen 16, a power switch 15, a first data transmission socket 17, and a main control board 11. The air pump 3 and smoke sensor 10 within the circulation device are connected to the main control device to achieve internal circulation during surgery and to filter and discharge gas after smoke detection.

[0020] Specifically, the circulation device also has an air inlet 1, a smoke outlet 5, an insufflator connection port 6, and an air outlet 9; the air inlet 1 connects the smoke sensor 10, the air pump 3, and the first interface of the electromagnetic three-way valve 4 in series through the PU air pipe 8; the second interface of the electromagnetic three-way valve 4 is connected to the smoke outlet 5 through the PU air pipe 8; the third interface of the electromagnetic three-way valve 4 is connected to the first interface of the three-way pipe 7 through the PU air pipe 8; the second interface of the three-way pipe 7 is connected to the insufflator connection port 6; and the third interface of the three-way pipe 7 is connected to the air outlet 9.

[0021] The smoke inlet 14 of the main control device is connected to the filter device 13 through an air pipe and then connected to the low-pressure exhaust port 12; at the same time, the smoke inlet 14 and the smoke outlet 5 are connected through an air pipe; the LCD screen 16, the power switch 15, and the data transmission socket 17 are respectively installed on the housing of the main control device, and the main control board 11 is located inside the housing and is connected to the electromagnetic three-way valve 4 and the smoke sensor 10.

[0022] The gas inlet 1 of the circulating device is connected to the human body through the gas interface of the puncture device, the gas outlet 9 is connected to the pneumoperitoneum needle, the pneumoperitoneum machine connection port 6 is connected to the pneumoperitoneum machine 70, the smoke gas outlet 5 is connected to the smoke gas inlet 14 of the main control device, and the low-pressure exhaust port 12 is connected to the low-pressure exhaust port.

[0023] During the operation, the gas in the abdominal cavity of the human body is sucked into the sensor detection box 2 through the gas pump 3, and whether the gas contains smoke is detected by the smoke sensor 10, and the real-time electric signal is transmitted to the data transmission socket 1 7 through the data transmission socket 2 18 and the main control panel 1 1, so that the liquid crystal display 16, the electromagnetic three-way valve 4 and the three-way pipe 7 display related data and make corresponding actions.

[0024] When the smoke sensor 10 detects that the gas is smoke-free, one end of the electromagnetic three-way valve 4 connected to the smoke gas outlet 5 is in a closed state (normally closed), and the other end of the electromagnetic three-way valve 4 connected to the three-way pipe 7 is in an open state (normally open). At this time, the gas will enter the human body again through the gas outlet 9, so as to maintain the balance of the human body pressure and facilitate the operation of the doctor.

[0025] When the smoke sensor 10 detects smoke, one end of the electromagnetic three-way valve 4 connected to the smoke gas outlet 5 is opened (normally closed), and the other end of the electromagnetic three-way valve 4 connected to the three-way pipe 7 is closed (normally open). At this time, the gas will enter the smoke gas inlet 14 of the main control device from the smoke gas outlet 5, and the gas will be filtered by the filtering device 13 and enter the low-pressure exhaust port through the low-pressure exhaust port 12.

[0026] Compared with the existing smoke exhaust method, the present application reduces the risk caused by taking out the endoscope many times during the operation, improves the operation efficiency, increases the stability and efficiency during the operation, reduces the personnel cooperation process, avoids the waste of personnel, indirectly reduces the work burden of part of the medical staff. After the gas is filtered and discharged, the release of toxic substances is reduced, and the health protection of the medical staff is increased. The phenomenon of reducing the service life of the endoscope due to the attachment of lipid substances on the mirror surface is avoided, the utilization rate of the endoscope is increased, and the waste of resources is reduced.

[0027] The following will be combined Figures 8-11 Brief introduction of the circuit control principle of the smoke removing device for abdominal surgery.

[0028] When starting, the MQ-2 sensor is collected by the AD signal, the output signal is converted by the ADC0832, the voltage signal is converted into a digital signal, the digital signal transmitted by the smoke sensor is received by the single-chip microcomputer chip, and the smoke concentration value is converted.

[0029] When the single-chip microcomputer detects the smokeless signal, the chip outputs a low duty cycle waveform from Air_Pump_PWM, the transistor is in the on state, so that the D409 field effect tube controls the Air_Pump output voltage to open, and the air pump is in a low-speed airflow passing state; the chip outputs VSS to Air_Valve_CTL, the transistor is in the blocking state, the D409 field effect tube voltage does not pass, the normally closed three-way electromagnetic air valve is in the opening of the internal circulation pipeline, the external pipeline is closed, and the ordinary three-way air pipe has one end as the external air inlet to inhale and exhale, so that the air pump airflow is in an internal circulation circulation state.

[0030] When the single-chip microcomputer detects the smoke signal, the chip outputs a high duty cycle waveform from Air_Pump_PWM, the transistor is in the on state, so that the D409 field effect tube controls the Air_Pump output voltage to open, and the air pump is in a high-speed airflow passing state; the chip outputs VDD to Air_Valve_CTL, the transistor is in the on state, the D409 field effect tube controls the Air_Valve output voltage to open, the normally closed three-way electromagnetic air valve is in the closing of the internal circulation pipeline, the external pipeline is opened, so that the air pump airflow is in an external circulation circulation state.

[0031] The working principle and working process of the smoke removing device for abdominal surgery of the present application are briefly described as follows.

[0032] During the operation, all the equipment is started, and the gas in the abdominal cavity is sucked into the circulating device 50. Under the detection of the smoke sensor 10 inside the circulating device 50, if no smoke is detected, the gas is normally circulated through the gas outlet 5 and delivered back to the abdominal cavity. The gas flow chart is as shown in Figure 6 .

[0033] If smoke gas is detected, the electromagnetic three-way air valve 4 in the circulating device 50 is controlled by the circuit board 11 in the main control device 60 to make corresponding action, the gas will enter the main control device 60 through the smoke gas outlet 5, and then be maintained by the gas. The gas flow chart is as shown in Figure 7 .

[0034] The above only describes the preferred embodiments of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. An apparatus for smoke evacuation during abdominal surgery, comprising: It comprises a gas pump (3), a smoke sensor (10), an electromagnetic three-way air valve (4), a three-way pipe (7), a filtering device (13), a main control board (11) and a low-pressure exhaust port (12); it also has an air inlet (1), a pneumoperitoneum machine connecting port (6) and an air outlet (9); The air inlet (1), the smoke sensor (10), the gas pump (3) and the electromagnetic three-way air valve (4) are sequentially connected in series, the second interface of the electromagnetic three-way air valve (4) is sequentially connected with the filtering device (13) and the low-pressure exhaust port (12); the third interface of the electromagnetic three-way air valve (4) is connected with the three-way pipe (7), and the pneumoperitoneum machine connecting port (6) and the air outlet (9) are respectively connected with the second interface and the third interface of the three-way pipe (7). The main control board (11) is electrically connected with the smoke sensor (10) and the electromagnetic three-way air valve (4) respectively, the main control board (11) receives the signal of the smoke sensor (10) and controls the electromagnetic three-way air valve (4) to open the outlet one, so that the smoke-free gas entering the smoke removing device is directly discharged from the air outlet (9); or controls the electromagnetic three-way air valve (4) to open the outlet two, so that the smoke gas passes through the filtering device (13) for filtering and low-pressure discharge.

2. The smoke evacuating device for abdominal surgery according to claim 1, wherein It comprises a main control device (60) and a disposable circulating device (50); the gas pump (3), the smoke sensor (10), the electromagnetic three-way air valve (4), the three-way pipe (7), the air inlet (1), the pneumoperitoneum machine connecting port (6) and the air outlet (9) are all arranged on the circulating device (50); the filtering device (13), the main control board (11) and the low-pressure exhaust port (12) are arranged on the main control device (60).

3. The smoke evacuating device for abdominal surgery according to claim 2, wherein The circulating device (50) is provided with a smoke outlet (5) connected with the second interface of the electromagnetic three-way air valve (4), the main control device (60) is provided with a smoke inlet (14) connected with the filtering device (13), and the smoke inlet (14) and the smoke outlet (5) are connected through an air pipe.

4. The smoke evacuating device for abdominal surgery according to claim 2, wherein The main control device (60) comprises a data transmission socket one (17), the circulating device (50) comprises a data transmission socket two (18), and the data transmission socket two (18) is electrically connected with the data transmission socket one (17).

5. The smoke evacuating device for abdominal surgery according to claim 2, wherein The main control device (60) comprises a liquid crystal display screen (16) and a power switch (15), and the liquid crystal display screen (16) is electrically connected with the main control board (11).

6. The smoke evacuating device for abdominal surgery according to claim 2, wherein The components in the circulating device (50) are connected through a plurality of PU air pipes (8).

7. The smoke evacuating device for abdominal surgery according to claim 1, wherein The smoke sensor (10) is arranged in a sensor detection box (2), and the two ends of the sensor detection box (2) are respectively connected with the gas pump (3) and the air inlet (1).

8. The smoke evacuating device for abdominal surgery according to claim 1, wherein The air inlet (1) is connected with the human body through a puncture device gas interface, the air outlet (9) is connected with a pneumoperitoneum needle, and the pneumoperitoneum machine connecting port (6) is connected with a pneumoperitoneum machine (70).

9. The smoke evacuating device for abdominal surgery according to claim 1, wherein The smoke sensor (10) is an MQ-2 smoke concentration sensor, and an AD signal is collected.

10. The smoke evacuating device for abdominal surgery according to claim 1, wherein The main control board (11) contains ADC0832 chip, the ADC0832 chip outputs VSS to Air_Valve_CTL, the triode is in the blocking state, the voltage of D409 field effect tube does not pass, the normally closed three-way electromagnetic air valve is in the opening of the inner circulation pipeline, the ADC0832 chip outputs VDD to Air_Valve_CTL, the triode is in the conducting state, D409 field effect tube controls the opening of Air_Valve output voltage, and the normally closed three-way electromagnetic air valve is in the closing of the inner circulation pipeline.

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