CN110327081A - A kind of endoscope-assistant surgery constant pressure and adjustable exhaust system - Google Patents

Abstract

The invention discloses a constant pressure and adjustable discharge system for endoscopic surgery, which comprises a suction device, a regulating tube, a waste liquid collecting bottle and a pressure regulating bottle, liquid is arranged in the pressure regulating bottle, and the upper end of the regulating pipe is connected with the waste liquid collecting bottle One end on the upper side is connected, the other end on the upper side of the waste liquid collection bottle is connected to the suction device, the lower end of the regulating tube extends into the pressure regulating bottle, and the upper side of the pressure regulating bottle is provided with a negative pressure port, the liquid in the pressure regulating bottle The tube is set to be relatively movable, and the pressure regulating bottle is provided with a vent valve communicating with the inside and outside. The active suction and passive discharge of the present invention can be freely converted; the discharge speed and intra-abdominal pressure are stable, and can be adjusted conveniently and visually by the operator, thus greatly making up for the shortcomings of the existing suction device in laparoscopic surgery, and more convenient And more secure.

Description

A constant pressure and adjustable discharge system for endoscopic surgery

technical field

The invention relates to the field of medical surgical instruments, in particular to a constant pressure and adjustable discharge system for laparoscopic surgery.

Background technique

In minimally invasive surgery, it is usually necessary to fill a closed body cavity with positive pressure carbon dioxide gas to form a space for surgical operations. Among them, during the operation, it is often necessary for the suction system to suck various liquids such as blood and body fluids, and to discharge the smoke generated by energy devices (such as electric hooks, ultrasonic scalpels, etc.), so as to ensure a clear surgical field of view.

However, there are following defects in the suction system used in the existing laparoscopic (comprising laparoscopy, thoracoscopic and inflatable mediastinoscope) surgery: (1) the negative pressure suction system that is always available in the operating room sucks liquid and discharges smoke, The carbon dioxide gas inflated in the body cavity will be quickly drawn out, resulting in the immediate reduction or even disappearance of the inflated operating space. The operation must be stopped, and the operation can only be continued when the carbon dioxide gas is refilled to reach the specified pressure and the operating space can be expanded; (2) Suction and exhaust The smoke cannot be carried out continuously and effectively, the fluid in the operation site accumulates, and the lens is blocked by the smoke, resulting in unclear surgical vision; (3) The pressure in the body cavity cannot be adjusted and controlled during use, and the change is drastic. The above defects lead to the continuity and safety of the operation can not be guaranteed.

Contents of the invention

The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a constant pressure and adjustable discharge system for endoscopic surgery. It can use the positive pressure ventilation system of the endoscope to provide power to achieve passive discharge, use the depth of the discharge tube in the liquid to control the pressure and discharge speed, so as to achieve a relatively stable body cavity pressure, and perform smoke or discharge according to the actual situation in the operation. Effective discharge of blood and other liquids; it can also be converted into a normal negative pressure suction state, using the pressure of the central negative pressure to achieve active suction.

In order to solve the above technical problems, the technical solution proposed by the present invention is a constant pressure and adjustable discharge system for endoscopic surgery, which includes a suction device, a regulating tube, a waste liquid collection bottle and a pressure regulating bottle, and the pressure regulating bottle is provided with a liquid, the upper end of the regulating tube communicates with one end on the upper side of the waste liquid collection bottle, the other end on the upper side of the waste liquid collecting bottle communicates with the suction device, and the lower end of the regulating tube extends to the pressure In the regulating bottle, a negative pressure port is provided on the upper side of the pressure regulating bottle, the liquid in the pressure regulating bottle and the regulating tube are arranged to be relatively movable, and the pressure regulating bottle is provided with a vent valve communicating with the inside and outside.

Further, the pressure regulating bottle is provided with a regulating tube telescopic driving mechanism, the regulating tube telescopic driving mechanism includes a sleeve, a motor and a rubber wheel, the sleeve is fixedly connected to the pressure regulating bottle, and the sleeve The lower end of the tube is in sealing sliding connection with the upper end of the regulating tube, and the upper end communicates with the upper end of the waste liquid collection bottle. The rubber wheels are fitted on both sides of the regulating tube, and one of the rubber wheels passes through the The motor is driven to move the regulating tube in and out of the liquid.

Further, the circumferential direction of the rubber wheel is provided with an annular groove matching the adjustment tube.

Further, the inside of the pressure regulating bottle is also provided with an installation cavity, the bottom of the installation cavity is provided with a sliding joint hole, the lower end of the regulating tube is in sealing sliding connection with the sliding joint hole, and the motor is fixed connected in the installation cavity.

Further, the pressure regulating bottle is provided with a liquid level regulating mechanism, and the liquid level regulating mechanism includes a slip joint sleeve and a piston, and the lower end of the slip joint sleeve extends toward the bottom of the pressure regulating bottle. The piston is configured to slide up and down along the slip joint sleeve to increase or decrease the liquid level of the liquid in the pressure regulating bottle.

Further, the liquid level adjustment mechanism also includes a solenoid valve and a spring arranged in the sliding joint sleeve, one end of the spring is connected to the top of the sliding joint sleeve, and the other end is connected to the piston, and the sliding joint sleeve The top of the socket is provided with the positive pressure port, and the positive pressure port is connected with the solenoid valve.

Further, a filter is installed on the upper side of the negative pressure regulating bottle, the negative pressure interface is arranged on the filter, and a replaceable filter element is arranged in the filter.

Further, it also includes a base, and one end of the base is connected with a power adapter.

Further, the aspirator is provided with a mode switch button for controlling the ventilation valve and a pressure balance adjustment button for controlling the relative position of the regulating tube and the liquid, and the suction end of the aspirator is evenly distributed with a plurality of suction holes spherical structure.

Further, the pressure regulating bottle includes a regulating bottle body and a cap of the regulating bottle pivotally connected to each other, the waste liquid collection bottle includes a collecting bottle body and a cap of the collecting bottle pivotally connected to each other, and the sleeve is detachable is installed on the installation cavity, and the installation cavity is detachably installed on the adjustment bottle cap.

Compared with the prior art, the present invention has the advantages of:

1. The constant pressure and adjustable discharge system for laparoscopic surgery of the present invention can make the pressure in the body cavity fluctuate in a small range between the set pressure of the insufflation machine and the set pressure of the suction system, ensuring that the surgical site in the body cavity is always maintained during the operation. There is room for operation, the smoke generated during the operation can be discharged continuously, avoiding the lens being blocked by the smoke, ensuring a clear view of the surgical site, and the suction device is always available during the operation;

2. Using the constant pressure and adjustable discharge system for endoscopic surgery of the present invention, there will be no need to suspend suction due to the disappearance of the operation space or the need to suspend surgery to wipe the lens due to the disappearance of the operation space during the operation process. During the operation process, Free, convenient and visual adjustments can be made according to the different procedures of the operation and the requirements for the suction intensity during the operation, avoiding the replacement of the aspirator midway, and the need for the itinerant nurse to assist in adjusting the pressure. The continuity and safety of the operation are guaranteed, and the operator can concentrate on it It can reduce the labor intensity of surgeons, avoid misoperation caused by sight shifting, significantly shorten the operation time, and reduce the related complications caused by prolonged carbon dioxide inflation time and anesthesia time;

3. The invention has reasonable cost and is convenient to use. Without significantly increasing medical expenses, it can reduce operation and anesthesia time and improve operation safety, thereby reducing the physiological and economic burden of patients.

Description of drawings

Fig. 1 is a schematic structural view of the constant pressure and adjustable discharge system for endoscopic surgery disclosed in the first embodiment of the present invention;

Fig. 2 is a schematic diagram of the cooperative structure of the annular groove and the sleeve disclosed in the first embodiment of the present invention;

Fig. 3 is a schematic diagram of the driving structure of the motor and the rubber wheel disclosed in the first embodiment of the present invention;

Fig. 4 is a schematic structural view of the aspirator disclosed in the first embodiment of the present invention;

Fig. 5 is a schematic structural diagram of a constant-pressure and adjustable discharge system for laparoscopic surgery disclosed in the second embodiment of the present invention.

illustration:

1. Suction device; 2. Regulating tube; 3. Waste liquid collection bottle; 4. Pressure regulating bottle; 5. Liquid; 6. Negative pressure interface; 7. Sleeve; 8. Motor; 9. Rubber wheel; 10. Ring Groove; 11. Installation cavity; 12. Sliding joint hole; 13. Sliding joint sleeve; 14. Piston; 15. Solenoid valve; 16. Spring; 17. Positive pressure interface; 18. Filter; 19. Base; 20. Power adapter; 21. Pressure balance adjustment button; 22. Mode switching button; 23. Adjusting bottle body; 24. Adjusting bottle cap; 25. Collection bottle body; 26. Collection bottle cap; 27. Sleeve Mounting hole; 28, buckle; 29, hose; 30, screw; 31, O-ring; 32, breather valve; 33, filter cover; 34, filter element; 35, bearing seat; 36, suction hole.

Detailed ways

In order to facilitate the understanding of the present invention, the present invention will be described more fully and in detail below in conjunction with the accompanying drawings and preferred embodiments, but the protection scope of the present invention is not limited to the following specific embodiments.

Embodiment one:

As shown in Figures 1-4, the present invention discloses a constant pressure and adjustable discharge system for endoscopic surgery, which includes a suction device 1, a regulating tube 2, a waste liquid collection bottle 3 and a pressure regulating bottle 4, and the pressure regulating bottle 4 contains A liquid 5 is provided, the upper end of the regulating tube 2 communicates with the upper end of the waste liquid collection bottle 3 through a hose 29, and the other end of the upper side of the waste liquid collection bottle 3 communicates with the suction device 1, so that the waste liquid in the body flows into the waste liquid After the collection bottle 3 will fall to the bottom of the bottle under the action of gravity, so as to uniformly collect and measure the volume, the lower end of the regulating tube 2 extends into the pressure regulating bottle 4, and then the smoke gas flowing out from the waste liquid collecting bottle 3 will enter In the pressure regulating bottle 4, wherein, the upper side of the pressure regulating bottle 4 is provided with a negative pressure port 6, and the negative pressure port 6 is connected with the common central negative pressure VAC of the hospital, and the liquid 5 and the regulating tube 2 in the pressure regulating bottle 4 are set as It can be moved relatively, wherein, there are two ways of relative movement, one is that the liquid 5 does not move, and the adjustment tube 2 moves up and down, and the pressure in the abdominal cavity is balanced and the discharge speed is controlled by submerging the depth of the liquid 5; the other is The liquid level of the liquid 5 moves up and down, while the regulating tube 2 does not move, which can also adjust the depth of the regulating tube 2 submerged in the liquid 5, thereby balancing the pressure in the abdominal cavity.

In this embodiment, the method that the liquid 5 does not move and the regulating tube 2 moves up and down is adopted. Specifically, the pressure regulating bottle 4 is provided with a telescoping drive mechanism for the regulating tube to adjust the regulating tube 2 to move up and down. The telescopic drive mechanism of the regulating tube includes a casing 7, a motor 8 and a rubber wheel 9. The casing 7 is fixedly connected to the pressure regulating bottle 4, and the lower end of the casing 7 is in sealing sliding connection with the upper end of the regulating pipe 2 (the O-shaped seal is set through the contact surface). ring 31 to ensure the sealing effect), the upper end communicates with the upper end of the waste liquid collection bottle 3, the rubber wheel 9 is supported and rotated by the bearing seat 35, and the rubber wheel 9 is fitted on both sides of the regulating tube 2, and one of the rubber wheels 9 Driven by the motor 8, the regulating pipe 2 enters or extends out of the liquid 5, where the rubber wheel 9 provides upward or downward frictional force when rotating.

In this embodiment, the circumferential direction of the rubber wheel 9 is provided with an annular groove 10 matching the adjustment tube 2 , so as to ensure the guiding function of the adjustment tube 2 .

In addition, in this embodiment, the pressure regulating bottle 4 includes a regulating bottle body 23 and a regulating bottle cap 24 pivotally connected to each other, and a vent valve 32 is installed on the regulating bottle cap 24, wherein the vent valve 32 includes an opening and closing valve. Two-position one-way solenoid valve. When the vent valve 32 was opened, the inside and outside of the regulating bottle body 23 were communicated; and when the vent valve 32 was closed, the regulating bottle body 23 was no longer directly communicated with the atmosphere. The ventilation valve 32 can be controlled by a button on the aspirator 1 . The waste liquid collection bottle 3 includes a collection bottle body 25 and a collection bottle cap 26 which are pivotally connected to each other. Wherein, the adjustment tube 2, the adjustment bottle body 23 and the collection bottle body 25 are all provided with scale marks. Between the regulating bottle body 23 and the regulating bottle cap 24, between the collecting bottle body 25 and the collecting bottle cap 26, the hasp 28 is compressed and sealed.

In this embodiment, a filter 18 is also provided between the negative pressure port 6 and the pressure regulating bottle 4, and the upper end of the filter 18 is provided with a threaded filter cap 33, and the filter cap 33 and the filter 18 can be threaded. Detachable sealed connection, the filter cover 33 is provided with a negative pressure interface 6, the filter 18 is provided with a replaceable filter element 34, the filter element 34 contains sponge and activated carbon, and is used to absorb smoke particles generated in the abdominal cavity during the operation.

In this embodiment, a mounting cavity 11 is provided on the inside of the pressure regulating bottle 4, and a sliding joint hole 12 is provided at the bottom of the mounting cavity 11 of the pressure regulating bottle 4, and the lower end of the regulating tube 2 is sealed and slidingly connected with the sliding joint hole 12 (O-shaped sealing ring 31 is arranged to guarantee sealing effect by contact surface too), and motor 8 is fixedly connected in the installation cavity 11, and wherein, pressure regulating bottle 4 comprises regulating bottle bottle body 23 and regulating bottle bottle cap 24, and sleeve pipe 7 Fixed in the sleeve installation hole 27 on the adjustment bottle cap 24 by plugging (the edge above the installation cavity 11 is affixed on the adjustment bottle cap 24 by screws 30, and the edge of the sleeve pipe 7 is affixed by screws 30 On the mounting cavity 11, so as to facilitate assembly and disassembly).

In the embodiment, it also includes a base 19, which is made of PPS material. The waste liquid collection bottle 3 and the pressure regulating bottle 4 are placed on the base 19. One end of the base 19 is connected to the motor 8, and the other end is connected to a power adapter 20. The base 19 can supply power to the motor 8 and the electromagnetic ventilation valve 32 . At the same time, the suction device 1 is provided with a pressure balance adjustment button 21 and a mode switching button 22 (for precise control, a display screen can be configured on the suction device 1): the positive and negative rotation of the motor 8 is controlled by the pressure balance adjustment button 21, press " When pressing the "+" key, the regulating pipe 2 rises, and when the "-" key is pressed, the regulating pipe 2 descends; the mode switching button 22 controls the opening and closing of the ventilation valve 32. Specifically: when the mode switching button 22 switches to the active suction state, the vent valve 32 is closed, the pressure regulating bottle 23 is not directly connected to the atmosphere, and the suction force from the central negative pressure is directly transmitted to the suction device 1. At this time, the traditional suction is used. The active suction function of the aspirator, so as to realize rapid suction, and the application in vitro or open body cavity; when the mode switch button 22 is switched to the passive discharge state, the ventilation valve 32 is opened, and the pressure regulating bottle 23 is directly communicated with the atmosphere. The suction force of the central negative pressure is neutralized. At this time, the function of passive discharge and body cavity pressure balance is performed. At the same time, the pressure adjustment tube 2 is controlled by the pressure balance adjustment button 21. Pressure 8-12 mm Hg), so as to adjust the discharge rate and the pressure in the body cavity, which should be applied to the closed body cavity at this time.

In order to prevent blocky tissue from getting stuck in the suction channel of the suction device 1, and to improve the suction efficiency at the end of the suction device 1, the input end of the suction device 1 is an expanded spherical or ellipsoidal suction head, which is evenly distributed with A plurality of suction holes 36 ensures that smoke or liquid in the body can enter from all directions of the aspirator 1, improves the adsorption efficiency, and avoids damage to tissues in the body or blockage of the suction channel.

Embodiment two:

In this embodiment, as shown in Fig. 5, the liquid level of the liquid 5 is moved up and down, and the regulating pipe 2 is not moved, wherein the pressure regulating bottle 4 is provided with a liquid level regulating mechanism, and the liquid level is adjusted The mechanism includes a sliding joint sleeve 13 and a piston 14. The lower end of the sliding joint sleeve 13 extends toward the bottom of the pressure regulating bottle 4. The piston 14 is set to slide up and down along the sliding joint sleeve 13 to make the liquid 5 in the pressure regulating bottle 4 The liquid level rises or falls, and the specific principle is: when the piston 14 moves downward, the piston 14 will discharge the liquid 5 in the slip joint sleeve 13, and the liquid 5 will be discharged from the hole at the bottom of the slip joint sleeve 13, resulting in pressure regulation The liquid level in the bottle 4 rises, and the adjusting tube 2 can be immersed in the liquid 5, and the discharge speed of the suction device 1 can be adjusted by adjusting the height of the liquid level. The deeper the adjusting tube 2 is immersed, the slower the discharge, and the shallower the sinking, the faster the discharge. Fast, when the ventilation valve 32 is closed, it is converted into the active negative pressure suction function of a common aspirator, and realizes maximum negative pressure suction.

Specifically, in this embodiment, the liquid level regulating mechanism also includes a solenoid valve 15 and a spring 16 arranged in the sliding sleeve 13, the sliding sleeve 13 is fixed on the cap 24 of the regulating bottle through a screw 30, and the spring One end of 16 is connected to the top of the sliding joint sleeve 13, and the other end is connected to the piston 14. The top of the sliding joint sleeve 13 is provided with a positive pressure port 17, which is connected to the solenoid valve 15, wherein the positive pressure port 17 It can be connected with the positive pressure connection port of the hospital, which is convenient and quick, and when the solenoid valve 15 is closed, it can play the role of maintaining the pressure of the pressure regulating bottle 4 .

Similarly, in this embodiment, a filter 18 is also provided between the negative pressure port 6 and the pressure regulating bottle 4, and the upper end of the filter 18 is provided with a threaded filter cap 33, and the filter cap 33 and the filter 18 Through the detachable threaded sealing connection, the filter cover 33 is provided with a negative pressure interface 6, and the filter 18 is provided with a replaceable filter element 34, which contains sponge and activated carbon, which is used to absorb the smoke generated in the abdominal cavity during the operation particles.

Similarly, in this embodiment, a base 19 is also included, which is made of PPS, and the waste liquid collection bottle 3 and the pressure regulating bottle 4 are placed on the base 19. One end of the base 19 is connected to the motor 8, and the other end is connected to a power supply. The adapter 20 can supply power to the motor 8 and the electromagnetic ventilation valve 32 through the base 19 . At the same time, the suction device 1 is provided with a pressure balance adjustment button 21 (including "+" key and a "-" key) and a mode switch button 22 (for precise control, a display screen can be configured on the suction device 1), through the pressure The balance adjustment button 21 controls the opening and closing of the solenoid valve 15 . Specifically: when the mode switching button 22 switches to the active suction state, the vent valve 32 is closed, the pressure regulating bottle 23 is not directly connected to the atmosphere, and the suction force from the central negative pressure is directly transmitted to the suction device 1. At this time, the traditional suction is used. The active suction function of the aspirator, so as to realize rapid suction, and the application in vitro or open body cavity; when the mode switch button 22 is switched to the passive discharge state, the ventilation valve 32 is opened, and the pressure regulating bottle 23 is directly communicated with the atmosphere. The suction force of the central negative pressure is neutralized. At this time, the function of passive discharge and body cavity pressure balance is performed. At the same time, the water entry depth of the pressure adjustment tube 2 is controlled by the pressure balance adjustment button 21 (10.7cm-16.3cm, which is suitable for laparoscopic surgery. In vivo pressure 8-12 mm Hg), so as to adjust the discharge rate and the pressure in the body cavity, at this time, it should be used to seal the body cavity. Among them, the pressure balance adjustment button 21 controls the water entry depth of the pressure adjustment pipe 2, including: press the "+" key, the solenoid valve 15 will enter the air, the piston 14 will descend, the liquid level of the liquid 5 will rise relative to the adjustment pipe 2, press the "-" When the button is pressed, the solenoid valve 15 exhausts, the piston 14 rises, and the liquid level of the liquid 5 drops relative to the regulating tube 2. When the key is not pressed, neither air intake nor air outlet, the piston 14 remains static. That is, the opening and closing of the solenoid valve 15 is controlled by the pressure balance adjustment button 21 , and then the amount of water discharged by the piston 14 is controlled, that is, the liquid level of the liquid 5 is controlled.

Similarly, in order to prevent the blocky tissue from sticking to the suction channel of the suction device 1, and simultaneously in order to improve the suction efficiency at the end of the suction device 1, the input end of the suction device 1 is an expanded spherical or ellipsoid suction head, and the suction head is There are a plurality of suction holes 36, so as to ensure that the smoke in the body or the liquid in the human body can enter from all directions of the suction device 1, which improves the adsorption efficiency and avoids damage to the tissues in the body or blockage of the suction channel.

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (10)

1. A constant pressure and adjustable discharge system for endoscopic surgery is characterized in that it comprises aspirator (1), regulating tube (2), waste liquid collection bottle (3) and pressure regulating bottle (4), and the pressure A liquid (5) is arranged in the regulating bottle (4), the upper end of the regulating tube (2) communicates with one end on the upper side of the waste liquid collecting bottle (3), and the upper end of the waste liquid collecting bottle (3) The other end communicates with the suction device (1), the lower end of the regulating tube (2) extends into the pressure regulating bottle (4), and the upper side of the pressure regulating bottle (4) is provided with a negative pressure port (6 ), the liquid (5) and the regulating tube (2) in the pressure regulating bottle (4) are set to be relatively movable, and the pressure regulating bottle (4) is provided with a vent valve (32) communicating with the inside and outside. 2. The constant pressure and adjustable discharge system for endoscopic surgery according to claim 1, characterized in that, the pressure regulating bottle (4) is provided with a telescopic drive mechanism for the regulating tube, and the telescopic driving mechanism for the regulating tube includes a sleeve tube (7), motor (8) and rubber wheel (9), the sleeve (7) is fixedly connected to the pressure regulating bottle (4), and the lower end of the sleeve (7) is connected to the adjustment tube ( 2) The upper end of the upper end is sealed and slidingly connected, and the upper end communicates with one end of the upper side of the waste liquid collection bottle (3). The rubber wheels (9) are fitted on both sides of the adjustment tube (2), and one of them The rubber wheel (9) is driven by the motor (8) to make the regulating pipe (2) enter and exit the liquid (5). 3. The endoscopic surgery constant pressure and adjustable discharge system according to claim 2, characterized in that, the circumferential direction of the rubber wheel (9) is provided with an annular groove ( 10). 4. The constant pressure and adjustable discharge system for endoscopic surgery according to claim 3, characterized in that, an installation cavity (11) is also arranged on the inside of the pressure regulating bottle (4), and the installation cavity ( 11) is provided with a slip joint hole (12) at the bottom, the lower end of the adjustment pipe (2) is in sealing sliding contact with the slip joint hole (12), and the motor (8) is fixedly connected to the installation cavity ( 11) Inside. 5. The constant pressure and adjustable discharge system for endoscopic surgery according to claim 1, characterized in that, the pressure regulating bottle (4) is provided with a liquid level regulating mechanism, and the liquid level regulating mechanism includes a sliding joint Sleeve (13) and piston (14), the lower end of the slip joint sleeve (13) extends to the bottom of the pressure regulating bottle (4), and the piston (14) is arranged along the slip joint The tube (13) slides up and down to raise or lower the level of the liquid (5) in the pressure regulator bottle (4). 6. The constant pressure and adjustable discharge system for endoscopic surgery according to claim 5, characterized in that, the liquid level adjustment mechanism also includes a solenoid valve (15) and a spring arranged in the sliding sleeve (13) (16), one end of the spring (16) is connected to the top of the sliding sleeve (13), the other end is connected to the piston (14), and the top of the sliding sleeve (13) is provided with A positive pressure port (17), the positive pressure port (17) is connected with the electromagnetic valve (15). 7. The endoscopic surgery constant pressure and adjustable discharge system according to any one of claims 1-6, characterized in that a filter (18) is installed on the upper side of the pressure regulating bottle (4), and the negative The pressure port (6) is arranged on the filter (18), and a replaceable filter core (34) is arranged in the filter (18). 8. The endoscopic surgery constant pressure and adjustable discharge system according to any one of claims 1-6, further comprising a base (19), one end of the base (19) is connected to a power adapter (20 ). 9. The endoscopic surgery constant pressure and adjustable discharge system according to any one of claims 1-6, characterized in that, the suction device (1) is provided with a mode switching button for controlling the ventilation valve (32) (22) and the pressure balance adjustment button (21) that controls the relative position of the regulating tube (2) and the liquid (5), the suction end of the suction device (1) is evenly distributed with a plurality of suction holes (36) spherical structure. 10. The constant pressure and adjustable discharge system for endoscopic surgery according to any one of claims 4-6, characterized in that, the pressure regulating bottle (4) comprises a regulating bottle body (23) and a regulating bottle body (23) pivotally connected to each other. bottle cap (24), the waste liquid collection bottle (3) includes a collection bottle body (25) and a collection bottle cap (26) pivotally connected to each other, and the sleeve (7) is detachably installed on the The mounting cavity (11) is detachably mounted on the adjusting bottle cap (24).