CN102091361A - Double-channel suction irrigator for minimally invasive surgery - Google Patents

Abstract

The double-channel suction irrigator for minimally invasive surgery comprises an extension pipeline (10), a pipeline main body (20), a suction mechanism (30) and a transfusion mechanism (40); the rear end of the extension pipeline (10) is communicated with the front end of the pipeline main body (20), the suction mechanism (30) and the infusion mechanism (40) are communicated with the pipeline main body (20), and particularly, the extension pipeline (10) of the suction irrigator comprises two infusion channels (101) and a suction channel (102) which are isolated from each other. The technical scheme has the beneficial effects that: the infusion channel (101) and the suction channel (102) are physically isolated from each other by adopting a double-channel structural design, so that flushing liquid is not polluted, and the infusion channel has the functions of sintering and absorbing smoke dust, so that the operation time can be shortened, and the operation efficiency can be improved.

Description

Dual Channel Suction Irrigator for Minimally Invasive Surgery

TECHNICAL FIELD The present invention relates to surgical instruments, and more particularly to suction irrigators for minimally invasive procedures.

Background technology In minimally invasive surgery, it is necessary to use a suction irrigator to clean the abdominal cavity and extract blood stains or small scraps of meat in the abdominal cavity. Since the passages into the human body in minimally invasive surgery are few and small, and the cables and pipelines of monitoring instruments and surgical instruments used are numerous, the suction and irrigator in the prior art is limited by the product structure design or the development of parts and molds. There is no distinction between the suction channel and the infusion channel in the extension pipeline. During the operation, flushing, infusion, and suction are all shared channels. During the suction process, blood and tissue adhere to the channel, causing blood and tissue to be mixed into the flushing channel. in the fluid stream and carried back into the body cavity. This defect causes the flushing fluid to be polluted, thus has to further suck out the blood and cell tissue that flushes back into the body, repeats the process of flushing and aspiration, wastes operation time and flushing solution.

The prior art suction washer has the following deficiencies:

1. Due to the limitations of the product structure design or the development of parts and molds in the prior art suction flusher, there is no distinction between the suction channel and the infusion channel in the extension pipeline;

2. Flushing, infusion and suction during the operation all share a channel. During the suction process, blood and cell tissue adhere to the channel, causing blood and tissue to be mixed into the flushing fluid flow and brought back into the body cavity. Repeat the process of flushing and suction, wasting operation time and flushing fluid.

Summary of the invention The technical problem to be solved by the present invention is to propose a suction and irrigator for minimally invasive surgery by avoiding the shortcomings of the above-mentioned prior art.

The present invention adopts the structural design of double-channel penetration, so that the double-channel is in one direction, and the product width is smaller, which is more suitable for left and right single-handed manipulation. The undercut design eliminates the rebound force caused by the elastic force of the return spring, so that the parts will not be damaged by ultrasonic welding and gluing.

In the present invention, because the two channels are in the same direction, the main channel does not need a larger size, and each channel can maintain a consistent circular diameter and unimpeded infusion fluid entry/extraction pipeline, so that the invention can maintain the most comprehensive functions, and in the pipeline. When the subject collects the specimen, the instrument can enter unimpeded.

The smoke extraction channel of the present invention is separated from the main extraction channel. In addition to the smoke filtering function, the smoke extraction channel can be used to remove the dust in the abdominal cavity when other sintering instruments are used to generate smoke during operation. The gas produced by sintering is sucked out of the body separately, and it does not need to be pressed for a long time.

The technical problem solved by the present invention can be achieved by adopting the following technical solutions: a suction irrigator for minimally invasive surgery, including an extension pipe, a pipe main body, a suction mechanism and an infusion mechanism; The front end of the main body of the pipeline is connected, and the suction mechanism and the infusion mechanism are both connected with the main body of the pipeline.

The extension pipeline includes two isolated infusion channels and suction channels;

The infusion pipeline, the pipeline main body, the infusion mechanism and the infusion pipeline connected to the infusion mechanism form an infusion channel; during infusion, the suction mechanism is closed, the infusion mechanism is turned on, the liquid enters the infusion mechanism through the infusion pipeline, and then passes through the inner cavity of the pipeline body in sequence and infusion tubes into the body;

The suction pipeline, the pipeline main body, the suction mechanism and the waste liquid pipeline connected to the suction mechanism form a liquid suction channel; when pumping liquid, the suction mechanism is turned on, the infusion mechanism is closed, and the waste liquid in the body passes through the suction pipeline, The inner cavity of the main body of the pipeline and the suction mechanism are finally discharged through the waste liquid pipeline.

The extension pipeline also includes a telescopic pipeline of the electric burning probe, and the telescopic pipeline of the electric burning probe is isolated from the infusion pipeline (101) and the suction pipeline;

When working, the sintering probe with telescopic function is inserted into the body with the help of the telescopic tube of the electric burning probe, and is used to sinter the blood vessels with electricity, block the blood flow, and absorb the smoke and dust generated by sintering.

It also includes a smoke filter mechanism, which includes a smoke channel and a joystick arranged between the main body of the pipeline and the waste liquid pipeline. There is filter paper in the joystick, which can filter the smoke flowing through the smoke channel. Control the joystick to open or close the smoke channel.

The dust passage is arranged between the suction pipe and the waste liquid pipe, and communicates with the suction pipe.

The suction mechanism includes a suction pipe chamber, a movable suction pipe, a suction handle and a reset elastic component, and the top of the suction pipe chamber communicates with the waste liquid outlet;

The waste liquid pipeline is arranged outside the suction pipeline chamber and communicates with the suction pipeline chamber;

The movable suction pipe is arranged inside the suction pipe chamber, and can move axially along the suction pipe chamber under the action of the suction handle, and reset under the action of the reset elastic member;

The movable suction pipe moves toward the main body of the pipe under the pressure of the suction handle, so that the opening at the bottom of the movable suction pipe communicates with the waste liquid pipe, the suction mechanism is opened, and the flushing waste liquid in the body can pass through the waste liquid pipe. discharge;

When the suction handle is released, the movable suction pipe is reset under the action of the reset elastic component, so that the opening at the bottom of the movable suction pipe is retracted to a position away from the main body of the pipe, thereby closing the suction mechanism.

The reset elastic component is arranged between the waste liquid outlet and the movable suction pipe;

The suction handle is arranged at the end of the active suction pipe;

Sealing ring A, sealing ring B and sealing ring C are sequentially arranged on the movable suction pipe from the main body of the pipe to the direction of the suction handle;

When the suction handle is not pressed, the interface between the waste liquid pipe and the suction pipe chamber is confined in the sealed space between the sealing ring A and the sealing ring B;

When the suction handle is pressed, the interface between the waste liquid pipeline and the suction pipeline chamber is confined in the space between the sealing ring B and the sealing ring C.

The infusion mechanism includes an infusion pipeline chamber, an infusion movable pipeline, an infusion handle and a reset elastic component; the top of the infusion pipeline chamber communicates with the infusion inlet;

The infusion pipeline is arranged outside the outside of the infusion pipeline and communicates with the inner cavity of the infusion pipeline;

The infusion movable pipeline is arranged inside the infusion pipeline chamber, and can move along the axial direction of the infusion pipeline chamber under the action of the infusion handle, and reset under the action of the reset elastic component;

The infusion movable pipeline moves toward the main body of the pipeline under the pressure of the infusion handle, thereby opening the infusion mechanism;

Release the infusion handle, and the infusion movable pipeline is reset under the action of the reset elastic component, thereby closing the infusion mechanism.

A sealing gasket D is provided on the top of the infusion movable pipeline, and the sealing gasket D is used to block the infusion inlet;

When the infusion handle is pressed, the sealing gasket D moves along with the active infusion pipeline to the main body of the pipeline, and no longer blocks the infusion inlet, thereby opening the infusion channel; when the infusion handle is released, the sealing gasket D moves along with the infusion active pipeline. (return away from the position of the main body of the pipeline, and finally block the infusion inlet, thereby closing the infusion channel

A blocking device is also provided. When the probe to be sintered extends out of the front end of the extension pipe, the blocking device is moved toward the front end of the extension pipe (10). Prevent the flushing solution from entering the infusion pipeline or body cavity, and avoid the hazard of electrification;

When the sintering probe is not required to protrude from the front end of the extension pipe, move the blocking device towards the end of the extension pipe, and at the same time, the blocking device no longer blocks the pressing stroke of the infusion handle, so that the infusion handle can be pressed down, so that the flushing solution can enter the infusion pipe Or in the body cavity, restore the flushing function.

One end of the blocking device is axially movably fixed on the main body of the pipeline through a pressing ring, and the other end is provided with a blocking plate, which is used to block the pressing stroke of the infusion handle when working.

The infusion/suction pipe is a stainless steel pipe.

Compared with prior art, the beneficial effect of above-mentioned technical scheme that the present invention adopts is:

1. The dual-channel structural design is adopted to physically isolate the infusion channel and the suction channel from each other, so that the flushing fluid will not be polluted;

2. Structurally, the smoke and dust extraction channel is separated from the main extraction pipeline. The smoke and dust extraction channel has the function of dust filtering. When other sintering instruments are used to generate smoke during operation, the abdominal cavity can be removed by operating the joystick in the smoke and dust extraction channel. The gas generated by internal sintering is sucked out of the body alone, and it does not need to be pressed for a long time.

Description of drawings

Fig. 1 is the schematic diagram of the orthographic projection front view sectional structure of the dual-channel suction and irrigator for minimally invasive surgery of the present invention;

Fig. 2 is a cross-sectional view of Embodiment 1 of the flushing liquid extension pipeline of the suction flusher;

Fig. 3 is a cross-sectional view of the second embodiment of the flushing liquid extension pipeline of the suction flusher;

Fig. 4 is a cross-sectional view of the third embodiment of the flushing liquid extension pipeline of the suction flusher;

Fig. 5 is a working principle diagram when the suction flusher performs infusion work;

Fig. 6 is a working principle diagram when the suction washer performs suction work;

Fig. 7 is a working principle diagram when the suction washer performs smoke suction;

Fig. 8 is a schematic structural view of the suction mechanism and the infusion mechanism of the suction flusher;

Fig. 9 is a schematic diagram of the assembly of the suction mechanism and the infusion mechanism of the suction flusher;

Fig. 10 is a schematic diagram when the dust filtering mechanism is opened;

Fig. 11 is a schematic diagram when the dust filtering mechanism is closed;

Fig. 12 is a schematic diagram of the working blocking device of the preferred embodiment of the suction washer;

Fig. 13 is a schematic diagram of the blocking device of the preferred embodiment of the suction washer when it is not working.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Further details will be given below in conjunction with the preferred embodiments shown in the accompanying drawings.

The present invention is used for the dual-channel suction and irrigator of minimally invasive surgery, as shown in Figure 1, comprises extension pipe 10, pipe main body 20, suction mechanism 30 and infusion mechanism 40; The front end is connected, and both the suction mechanism 30 and the infusion mechanism 40 are in communication with the pipeline main body 20; in particular, the extension pipeline 10 includes two mutually isolated infusion channels 101 and a suction channel 102;

The infusion pipeline 101, the pipeline main body 20, the infusion mechanism 40 and the infusion pipeline 46 connected to the infusion mechanism 40 form an infusion channel; during infusion, close the suction mechanism 30, open the infusion mechanism 40, and the liquid enters the infusion mechanism through the infusion pipeline 46 40, and then enter the body through the inner cavity of the pipeline main body 20 and the infusion pipeline 101 in sequence;

The suction pipeline 102, the pipeline main body 20, the suction mechanism 30, and the waste liquid pipeline 36 connected to the suction mechanism 30 form a liquid suction channel; The liquid passes through the suction pipe 102 , the inner cavity of the pipe main body 20 and the suction mechanism 30 in sequence, and is finally discharged through the waste liquid pipe 36 .

As shown in Figure 1, the extension pipe 10 also includes a telescopic pipe 103 for the electric cautery probe, and the telescopic pipe 103 for the electric cautery probe is also physically isolated from the infusion pipe 101 and the suction pipe 102;

As shown in Fig. 1, when working, the sintering probe 1031 with telescopic function is inserted into the body through the electrosintering probe telescopic pipe 103 to sinter blood vessels with electricity, block blood flow, and absorb the smoke generated by sintering.

Fig. 2 to Fig. 4 are the sectional views of three embodiments of the extension pipe 10, as can be seen from Fig. 2 to Fig. 4, the three embodiments of the extension pipe 10 provided by the present invention can make the infusion channel 101, the suction channel 102, and the electric cauterization probe telescopic pipe 103 are physically isolated from each other, but the simple transformations made by the inventors in the field on this basis should also be included in the protection scope of the present invention.

As shown in Figures 1 and 10, the suction washer of the present invention also includes a smoke filter mechanism 50, and the smoke filter mechanism 50 includes a smoke channel 51 and a joystick arranged between the pipeline body 20 and the waste liquid pipeline 36 52. There is filter paper inside the joystick 52, which can filter the dust flowing through the dust passage 51, and the dust passage 51 is opened or closed by controlling the joystick 52.

As shown in FIG. 1 or FIG. 7 , the dust passage 51 is arranged between the suction pipe 102 and the waste liquid pipe 36 , and communicates with the suction pipe 102 .

As shown in Figure 10, when the joystick 52 is pulled to the ON position, the smoke and dust passage 51 is opened, and the gas in the body is sucked into the smoke and dust passage 51 after passing through the suction pipe 102 and the pipe main body 20, and the gas is arranged in the joystick. After the filter paper of 52 is filtered, finally discharge through waste liquid pipeline 36.

As shown in FIG. 11 , when there is no need to discharge the gas in the body, when the joystick 52 is pulled to the OFF position, the smoke channel 51 is closed, thereby ensuring that the gas in the body will not be discharged.

As shown in Figure 7, the smoke channel 51 is separated from the main suction mechanism 30. In addition to the smoke filter function, when other sintering instruments are used to generate smoke during the operation, only the joystick 52 is used to sinter the abdominal cavity. The generated gas is sucked out of the body alone without prolonged pressing, which is convenient for operation. Or the use of instruments and channels can be reduced, the operation time and equipment usage can be shortened, and the operation cost can be reduced.

As shown in Figure 7, when it is necessary to use other sintering instruments to generate smoke during the operation, you only need to operate the joystick 52 and rotate the joystick 52 to the ON position as shown in Figure 10 to sinter the abdominal cavity. The generated gas passes through the suction pipe 102, then through the dust passage 51, and finally through the waste liquid pipe 36 to be sucked out of the body separately. Afterwards, it is removed from the waste liquid pipeline 36, the exhaust gas is purified, the operating room environment can not be polluted, and the filter paper in the joystick 52 can be easily replaced. In this way, the gas in the body is eliminated, and it does not need to be pressed for a long time, which is convenient for operation. Or the use of instruments and channels can be reduced, the operation time and equipment usage can be shortened, and the operation cost can be reduced.

As shown in Figure 1, the suction mechanism 30 includes a suction pipe chamber 31, a movable suction pipe 32, a suction handle 33 and a reset elastic member 34, and the top of the suction pipe chamber 31 communicates with the waste liquid outlet 21 ; The waste liquid pipeline 36 is arranged on the outside of the suction pipeline chamber 31, and communicates with the inner chamber of the suction pipeline chamber 31; 33 moves axially along the suction pipe chamber 31, and resets under the action of the reset elastic member 34; the movable suction pipe 32 moves toward the direction of the pipe main body 20 under the pressure of the suction handle 33, so that the movable The opening at the bottom of the suction pipe 32 communicates with the waste liquid pipe 36, the suction mechanism 30 is opened, and the flushing waste liquid in the body can be discharged through the waste liquid pipe 36; the suction handle 33 is released, and the movable suction pipe 32 is reset. The elastic member 34 returns under action, so that the opening at the bottom of the movable suction pipe 32 retreats to a position away from the pipe main body 20 , thereby closing the suction mechanism 30 .

As shown in Figures 8-9, the reset elastic member 34 is arranged between the waste liquid outlet 21 and the active suction pipe 32; the suction handle 33 is arranged at the end of the active suction pipe 32; the active suction The suction pipe 32 is provided with sealing ring A, sealing ring B and sealing ring C successively from the pipe main body 20 to the suction handle 33; when the suction handle 33 is not pressed, the waste liquid pipe 36 and the suction pipe chamber 31 The interface is confined in the sealed space between the sealing ring A and the sealing ring B; when the suction handle 33 is pressed, the interface between the waste liquid pipe 36 and the suction pipe chamber 31 is confined between the sealing ring B and the sealing ring C within the space.

As shown in Figure 1, the movable suction pipe 32 is provided with a sealing ring A, a sealing ring B and a sealing ring C successively from the pipe main body 20 to the suction handle 33, and the opening 321 at the bottom end of the movable suction pipe 32 is arranged on the Between seal ring B and seal ring C. When sucking, it is necessary to press the suction handle 33, and at the same time loosen the infusion handle 43. When the suction handle 33 is pressed, the movable suction pipe 32 will move towards the direction of the pipe body 20 under the action of the suction handle 33. Move, at this time, the opening 321 at the bottom of the movable suction pipe 32 is connected with the waste liquid pipe 36, and the liquid suction passage is opened at this moment, and the waste liquid after flushing in the body passes through the suction pipe 102, the pipe main body 20 successively, and then passes through the waste liquid. The liquid outlet 21 flows through the suction pipe chamber 31. Due to the existence of the sealing ring A, the liquid in the suction pipe chamber 31 can only flow through the opening 321 at the bottom of the active suction pipe 32, and finally the liquid is discharged from the waste liquid. Conduit 36 exits.

When the suction handle 33 is not pressed, the interface between the waste liquid pipe 36 and the suction pipe chamber 31 is confined in the sealed space between the seal ring A and the seal ring B; when the suction handle 33 is pressed, the waste liquid pipe 36 The interface with the suction duct chamber 31 is confined within the space between the sealing rings B and C.

FIG. 6 is a schematic diagram of the suction washer sucking the fluid in the body after the suction handle 33 is pressed.

As shown in Figure 1, the infusion mechanism 40 includes an infusion pipeline chamber 41, an infusion active pipeline 42, an infusion handle 43 and a reset elastic member 44; the top of the infusion pipeline chamber 41 communicates with the infusion inlet 22; the infusion pipeline 46 It is arranged on the outside of the infusion pipeline chamber 41 and communicates with the inner cavity of the infusion pipeline chamber 41; the active infusion pipeline 42 is arranged inside the infusion pipeline chamber 41 and can move along the axial direction of the infusion pipeline chamber 41 under the action of the infusion handle 43. activity, reset under the action of the reset elastic part 44; the infusion movable pipeline 42 moves toward the direction of the pipeline main body 20 under the pressure of the infusion handle 43, thereby opening the infusion mechanism 40; release the infusion handle 43, and the infusion movable pipeline 42 Reset under the action of the reset elastic component 44 , thereby closing the infusion mechanism 40 .

The top of the active infusion pipeline 42 is provided with a sealing gasket D, and the sealing gasket D is used to block the infusion inlet 22; Move, no longer block the infusion inlet 22, thereby opening the infusion channel; when the infusion handle 43 is released, the sealing gasket D will return to the position away from the pipeline main body 20 along with the infusion active pipeline 42, and finally block the infusion inlet 22, thereby closing the infusion aisle.

As shown in Figures 8-9, during infusion, press the infusion handle 43, and the sealing gasket D provided on the top of the movable pipe 42 moves toward the pipe body 20 along with the movable pipe 42, thereby opening the infusion inlet 22 and further opening the entire infusion channel , the infusion liquid passes through the infusion pipeline 46 and the infusion active pipeline 42, then enters the pipeline main body 20 through the infusion inlet 22, and then enters the body through the infusion pipeline 101 to complete the infusion process.

FIG. 5 is a schematic diagram of the suction and washer injecting liquid into the body after pressing the suction handle 43 .

Fig. 8 and Fig. 9 respectively illustrate the connection and assembly diagrams of the suction mechanism 30 and the infusion mechanism 40.

As shown in Figure 8 or Figure 9, the waste liquid pipeline 36 passes through the infusion mechanism 40, and is arranged approximately parallel to the central axis of the pipeline body 20 together with the infusion pipeline 46; as shown in Figure 1, the pipeline body 20 A waste liquid outlet 21 and an infusion inlet 22 are arranged side by side at the bottom; the suction mechanism 30 communicates with the waste liquid outlet 21 ; the infusion mechanism 40 communicates with the infusion inlet 22 .

The extension pipe 10 communicates with the pipe main body 20 through a fixing mechanism, and can be easily removed for cleaning the extension pipe 10; the diameter of one end of the pipe main body 20 connected to the extension pipe 10 is provided with two symmetrical holes, There is a fixing groove at the bottom of the caliber; the fixing mechanism includes a sleeve, two pressure pieces clamped on the outside of the sleeve, elastic parts and buckles respectively arranged on the inside of the two pressure pieces, and the bottom of the sleeve is also provided with a fixed When the fixed slot is fixed, it is inserted into the fixing groove so as to be fixed.

As shown in Figure 12 or Figure 13, the suction flusher of the present invention is also provided with a blocking device 1032, when the probe 1031 to be sintered extends out of the front end of the extension pipe 10, the blocking device 1032 is moved toward the front end of the extension pipe 10, and at the same time The blocking device 1032 blocks the pressing stroke of the infusion handle 43, so that the infusion handle 43 cannot be pressed down, prevents the flushing solution from entering the infusion pipeline 101 or the body cavity, and avoids the danger of electrification;

As shown in Figure 13, when the sintering probe 1031 is not required to protrude from the front end of the extension pipe 10, the blocking device 1032 is moved toward the end of the extension pipe 10. The handle 43 can be pressed down so that the flushing solution can enter the infusion tube 101 or the body cavity to restore the flushing function.

One end of the blocking device 1032 is axially movably fixed on the pipe body 20 through a pressing ring 1034 , and the other end is provided with a blocking piece 1033 , which is used to block the pressing stroke of the infusion handle 43 during operation.

As shown in Figure 12, by moving the pressing ring 1034, the sintering probe 1031 protrudes from the front end of the extension pipe 10. At this time, the blocking piece 1033 arranged at the other end of the blocking device 1032 is moved to the top of the infusion handle 43, thereby blocking The infusion handle 43 cannot be pressed down, so as to prevent the flushing solution from entering the infusion pipeline 101 or the body cavity, and avoid electrification hazards.

As shown in Figure 13, by moving the pressing ring 1034, the sintering probe 1031 is retracted into the front end of the extension pipe 10. At this time, the barrier sheet 1033 arranged at the other end of the blocking device 1032 is moved into the waste liquid pipe 36, and the infusion handle 43 Therefore, it can be pressed smoothly, so that the flushing solution can enter the infusion pipeline 101 or the body cavity, and the flushing function can be restored.

The above is the preferred implementation process of the present invention, and the usual changes and substitutions made by those skilled in the art on the basis of the present invention are included within the protection scope of the present invention.

Claims (10)

1. A dual-channel suction irrigator for minimally invasive surgery, comprising an extension pipeline (10), a pipeline main body (20), a suction mechanism (30) and an infusion mechanism (40); the extension pipeline (10) The rear end is in communication with the front end of the pipeline main body (20), and the suction mechanism (30) and the infusion mechanism (40) are both in communication with the pipeline main body (20), characterized in that: The extension pipeline (10) includes two infusion channels (101) and suction channels (102) isolated from each other; The infusion pipeline (101), the pipeline main body (20), the infusion mechanism (40) and the infusion pipeline (46) connected on the infusion mechanism (40) form an infusion channel; during infusion, close the suction mechanism (30), open The infusion mechanism (40), the liquid enters the infusion mechanism (40) through the infusion pipeline (46), and then enters the body through the inner cavity of the pipeline main body (20) and the infusion pipeline (101); The suction pipeline (102), the pipeline main body (20), the suction mechanism (30) and the waste liquid pipeline (36) connected to the suction mechanism (30) form a suction channel; mechanism (30), close the infusion mechanism (40), and the waste liquid in the body passes through the suction pipe (102), the inner cavity of the pipe body (20) and the suction mechanism (30) in sequence, and finally discharges through the waste liquid pipe (36). 2. The dual-channel suction and irrigator for minimally invasive surgery as claimed in claim 1, characterized in that: The extension pipe (10) also includes a telescoping pipe (103) for the electrocautery probe, and the telescopic pipe (103) for the electrocautery probe is isolated from the infusion pipe (101) and the suction pipe (102); When working, the sintering probe (1031) with telescoping function is inserted into the body by means of the telescoping pipe (103) of the electrocautery probe, and is used to electrify and sinter blood vessels, block blood flow, and absorb smoke generated by sintering. 3. The dual-channel suction and irrigator for minimally invasive surgery as claimed in claim 1, characterized in that: It also includes a smoke filter mechanism (50), which includes a smoke channel (51) and a control lever (52) arranged between the pipeline body (20) and the waste liquid pipeline (36), and the control lever (52) Filter paper is arranged in the rod (52), which can filter the smoke and dust flowing through the smoke and dust passage (51), and open or close the smoke and dust passage (51) by controlling the joystick (52). 4. The suction and irrigator for minimally invasive surgery as claimed in claim 3, characterized in that: The dust passage (51) is arranged between the suction pipe (102) and the waste liquid pipe (36), and communicates with the suction pipe (102). 5. The dual-channel suction and irrigator for minimally invasive surgery as claimed in claim 1, characterized in that: The suction mechanism (30) includes a suction duct chamber (31), a movable suction duct (32), a suction handle (33) and a reset elastic part (34), and the top end of the suction duct chamber (31) It is communicated with the waste liquid outlet (21); The waste liquid pipeline (36) is arranged outside the suction pipeline chamber (31) and communicates with the inner cavity of the suction pipeline chamber (31); The movable suction pipe (32) is arranged inside the suction pipe chamber (31), and can move axially along the suction pipe chamber (31) under the action of the suction handle (33), and the elastic part is reset (34) Reset under action; The movable suction pipe (32) moves toward the pipe body (20) under the pressure of the suction handle (33), so that the opening at the bottom of the movable suction pipe (32) communicates with the waste liquid pipe (36), The suction mechanism (30) is opened, and the flushing waste liquid in the body can be discharged through the waste liquid pipe (36); Release the suction handle (33), and the movable suction pipe (32) is reset under the action of the reset elastic member (34), so that the opening at the bottom of the movable suction pipe (32) is retracted away from the opening of the pipe main body (20). position, thereby closing the suction mechanism (30). 6. The dual-channel suction and irrigator for minimally invasive surgery as claimed in claim 1, characterized in that: The reset elastic component (34) is arranged between the waste liquid outlet (21) and the movable suction pipe (32); The suction handle (33) is arranged at the end of the active suction pipe (32); Sealing ring A, sealing ring B and sealing ring C are sequentially arranged on the movable suction pipeline (32) from the pipeline main body (20) to the suction handle (33); When the suction handle (33) is not pressed, the interface between the waste liquid pipeline (36) and the suction pipeline chamber (31) is confined in the sealed space between the sealing ring A and the sealing ring B; When the suction handle (33) is pressed, the interface between the waste liquid pipeline (36) and the suction pipeline chamber (31) is limited in the space between the sealing ring B and the sealing ring C. 7. The dual-channel suction and irrigator for minimally invasive surgery as claimed in claim 1, characterized in that: The infusion mechanism (40) includes an infusion pipeline chamber (41), an infusion active pipeline (42), an infusion handle (43) and a reset elastic part (44); the top of the infusion pipeline chamber (41) is connected to the infusion inlet (22 ) connected; The infusion pipeline (46) is arranged outside the infusion pipeline chamber (41) and communicates with the inner cavity of the infusion pipeline chamber (41); The infusion movable pipeline (42) is arranged inside the infusion pipeline chamber (41), and can move axially along the infusion pipeline chamber (41) under the action of the infusion handle (43), and can move axially under the action of the reset elastic member (44). down reset; The infusion active pipeline (42) moves toward the pipeline main body (20) under the pressure of the infusion handle (43), thereby opening the infusion mechanism (40); Release the infusion handle (43), and the infusion movable pipeline (42) is reset under the action of the reset elastic member (44), thereby closing the infusion mechanism (40). 8. The dual-channel suction and irrigator for minimally invasive surgery as claimed in claim 1 or 7, characterized in that: A sealing washer D is arranged on the top of the active infusion pipeline (42), and the sealing washer D is used to block the infusion inlet (22); When the infusion handle (43) is pressed, the sealing gasket D moves toward the pipeline main body (20) along with the infusion active pipeline (42), and no longer blocks the infusion inlet (22), thereby opening the infusion channel; release the infusion When the handle (43) is pressed, the sealing gasket D retreats to a position away from the pipeline main body (20) along with the infusion active pipeline (42), and finally blocks the infusion inlet (22), thereby closing the infusion channel. 9. The dual-channel suction and irrigator for minimally invasive surgery as claimed in claim 7, characterized in that: A blocking device (1032) is also provided, and when the probe to be sintered (1031) protrudes from the front end of the extension pipe (10), the blocking device (1032) is moved toward the front end of the extension pipe (10), while the blocking device (1032) Block the pressing stroke of the infusion handle (43), so that the infusion handle (43) cannot be pressed down, preventing the flushing solution from entering the infusion pipeline (101) or the body cavity, and avoiding the danger of electrification; When there is no need for the sintered probe (1031) to protrude from the front end of the extension pipe (10), move the blocking device (1032) toward the end of the extension pipe (10), and at the same time, the blocking device (1032) no longer blocks the infusion handle (43) Press stroke, and infusion handle (43) can be pressed down, and flushing solution can enter in infusion pipeline (101) or body cavity, restores flushing function. 10. The dual-channel suction and irrigator for minimally invasive surgery as claimed in claim 9, characterized in that: One end of the blocking device (1032) is axially movably fixed on the pipe body (20) through a pressing ring (1034), and the other end is provided with a blocking piece (1033), which is used to block the Infusion handle (43) is pressed stroke.

Images