Suction and flushing device for laparoscope

Abstract

The utility model discloses a laparoscope suction and flushing device which comprises an adjuster, a suction and flushing hole, an instrument access hole and a mounting hole which are communicated with one another are formed in the outer side of the adjuster; one end of the guide tube is connected into the mounting hole, the adjustor can drive the guide tube to extend into or extend out of the adjustor, surgical instruments can be exposed or retracted by adjusting the guide tube, so that function switching of cleaning a surgical area or operating by using the surgical instruments in the guide tube is realized, and the surgical instrument can be conveniently used. The replacement frequency of surgical instruments in the surgical process is greatly reduced, and the surgical efficiency and safety are improved.

Description

Technical Field

[0001] This utility model relates to a medical device, and more particularly to a laparoscopic aspiration and irrigation device. Background Technology

[0002] During surgery, various medical instruments are frequently used. For example, in laparoscopic surgery, procedures such as resection, electrocoagulation, and suturing require frequent changes of surgical instruments through the surgical channel placed inside the patient's body. However, the number of available surgical channels is currently limited. When irrigators or suction devices are needed for irrigation or suction, instruments such as forceps or electrocautery scalpels must first be withdrawn. Such frequent insertion and withdrawal of surgical instruments severely impacts surgical efficiency, especially for complex surgeries, where the number of instrument changes is even greater. This not only hinders timely cleaning of the surgical area but also prevents the simultaneous execution of suction, irrigation, and surgical procedures, increasing the risk of iatrogenic injury. Therefore, there is an urgent need for a device that can reduce the number of times surgical instruments need to be inserted or withdrawn during surgery. Utility Model Content

[0003] The purpose of this invention is to provide a laparoscopic aspiration and irrigation device to solve one or more technical problems existing in the prior art, and at least provide a beneficial option or create conditions.

[0004] The solution to the technical problem of this utility model is:

[0005] A laparoscopic aspiration and irrigation device includes: an adjuster with an interconnected aspiration and irrigation port, an instrument access port, and an installation port on its outer side; and a guide tube with one end connected to the installation port. The adjuster can drive the guide tube to extend into or out of the adjuster.

[0006] This technical solution has at least the following beneficial effects: the suction and flushing port on the outside of the regulator can be connected to an external suction or flushing device, and the instrument access port can be connected to an external surgical instrument, which is then inserted into the guide tube. When the surgical instrument in the guide tube needs to be used, the regulator is used to drive the guide tube into the regulator, so that the working head of the surgical instrument protrudes from the end of the guide tube. At this time, the surgical instrument can be used for surgical operations. When it is necessary to clean the surgical area, the regulator is used to drive the guide tube outward, so that the guide tube retracts the surgical instrument. At this time, the external suction or flushing device can be used to suction and flush the surgical area through the end of the guide tube away from the regulator. After cleaning, the guide tube can be repeatedly inserted into the regulator to continue using the surgical instrument. In this way, by adjusting the guide tube, the surgical instrument can be exposed or retracted, thereby realizing the function switching between cleaning the surgical area and using the surgical instrument in the guide tube. This greatly reduces the number of times the surgical instrument needs to be changed during the operation, improving surgical efficiency and safety.

[0007] As a further improvement to the above technical solution, the regulator includes a guide sleeve and an adjustment sleeve rotatably connected to one end of the guide sleeve. The suction and flushing hole is located on the outside of the guide sleeve. The end of the guide sleeve away from the adjustment sleeve forms the instrument access hole. An arc-shaped protrusion is connected to the end of the guide sleeve near the adjustment sleeve. The arc-shaped protrusion is inserted into the adjustment sleeve. Multiple arc-shaped protrusions are spaced around the central axis of the guide sleeve, and a guide space is formed between the multiple arc-shaped protrusions. One end of the guide tube extends into the adjustment sleeve and is located in the guide space. A guide protrusion is formed on the outer side of the end of the guide tube. A guide groove is spirally arranged on the inner side of the adjustment sleeve along its length direction. The guide protrusion passes through the gap between two arc-shaped protrusions and extends into the guide groove. When the guide tube needs to be inserted into or extended from the regulator, the adjusting sleeve is rotated, causing the guide protrusion to move relative to it along the guide groove. This allows the guide tube to be inserted into or extended from the regulator. For example, rotating the adjusting sleeve forward causes it to rotate relative to the guide sleeve. As the guide protrusion on the guide tube passes through the gap between the two arc-shaped protrusions and extends into the guide groove, the guide protrusion moves relative to it within the guide groove as the adjusting sleeve rotates. The two arc-shaped protrusions restrict the rotation of the guide protrusion, allowing the guide tube to move only along the axial direction of the adjusting sleeve and extend outward from the adjusting sleeve, thus allowing the guide tube to extend out of the regulator. When rotating the adjusting sleeve in the reverse direction, the adjusting sleeve also rotates relative to the guide sleeve. As the guide protrusion on the guide tube passes through the gap between the two arc-shaped protrusions and extends into the guide groove, the guide protrusion moves relative to it within the guide groove as the adjusting sleeve rotates. The two arc-shaped protrusions restrict the rotation of the guide protrusion, allowing the guide tube to move only along the axial direction of the adjusting sleeve and extend inward into the adjusting sleeve, thus allowing the guide tube to extend into the regulator.

[0008] As a further improvement to the above technical solution, an anti-disengagement hole is provided at the end of the arc-shaped protrusion near the guide sleeve, and the extension direction of the anti-disengagement hole is the same as the extension direction of the guide groove. When the guide protrusion moves relative to the guide end within the guide groove, the guide tube extends into the adjuster and is positioned. The guide protrusion can then be guided along the guide groove and engaged in the anti-disengagement hole formed by the arc-shaped protrusion. This improves the stability of the guide protrusion's positioning and the stability of the guide tube end after it has moved into position within the adjusting sleeve, thereby helping to prevent the guide tube from becoming loose when using surgical instruments.

[0009] As a further improvement to the above technical solution, a connecting groove is provided on the end face of the guide sleeve near the adjusting sleeve. The bottom width of the connecting groove is greater than the opening width of the connecting groove. A connecting port is provided on the guide sleeve at the opening position of the connecting groove. A connecting block is connected to the end face of the adjusting sleeve near the guide sleeve. The connecting block passes through the connecting port and is fitted into the connecting groove. When assembling the guide sleeve and the adjusting sleeve together, the connecting block on the adjusting sleeve can be inserted into the connecting groove from the connecting port on the end face of the guide sleeve, so that the connecting block and the connecting groove cooperate with each other. Then, by rotating the adjusting sleeve, the connecting block can be moved in the connecting groove. At this time, the connecting block and the connecting port are misaligned. Since the bottom width of the connecting groove is greater than the opening width of the connecting groove, the adjusting sleeve cannot be directly separated from the guide sleeve along the axial direction. In this way, a fast and stable rotational connection between the guide sleeve and the adjusting sleeve can be achieved.

[0010] As a further improvement to the above technical solution, a guide notch is provided on the end face of the adjusting sleeve near the guide sleeve. The guide notch communicates with the guide groove, and the guide protrusion enters the guide groove through the guide notch. When the guide tube and the adjusting sleeve are assembled, the end of the guide tube away from the guide protrusion is first inserted into the end of the adjusting sleeve with the guide notch, and the guide tube is moved along the axial direction of the adjusting sleeve so that the guide protrusion at the other end of the guide tube enters the guide groove through the guide notch. In this way, the connection position between the guide tube and the adjusting sleeve is set at the end near the guide sleeve, so that the guide protrusion will not come out from the end of the adjusting sleeve away from the guide sleeve when it moves relative to the guide groove, thereby improving the safety of the guide tube.

[0011] As a further improvement to the above technical solution, a sealing cap is connected to the end face of the guide sleeve away from the adjusting sleeve, and a sealing hole is provided on the sealing cap directly opposite the instrument access hole. After the surgical instrument passes through the sealing hole on the sealing cap, it is then inserted into the adjuster and guide tube through the instrument access hole. The sealing cap can enhance the sealing of the position where the surgical instrument is inserted from the instrument access hole, improve the airtightness inside the guide sleeve, and thus improve the efficiency of suction and flushing of the surgical area through the guide tube.

[0012] As a further improvement to the above technical solution, a connector is formed on the outer side of the guide sleeve, and the suction flushing hole is formed at the end of the connector. The connector allows the guide sleeve to be easily connected to external devices, improving assembly and disassembly efficiency and thus enhancing the user experience.

[0013] As a further improvement to the above technical solution, a T-connector is provided on the connector head. In use, the external suction device and flushing device can be directly connected to the T-connector respectively, thus reducing the need to disassemble and reassemble external equipment during suction and flushing, and further improving surgical efficiency.

[0014] As a further improvement to the above technical solution, a three-way valve is provided on the three-way connector. The three-way valve can directly control the connection state inside the three-way connector. For example, when a suction device is needed, only the suction device and the guide tube are connected; when a flushing device is needed, only the flushing device and the guide tube are connected, thus further improving the efficiency of switching between functions.

[0015] As a further improvement to the above technical solution, this utility model also includes a foot switch, which is electrically connected to the three-way valve. When it is necessary to switch between different functions, it can be controlled by the foot switch, thus freeing up the hands, reducing hand contamination, and improving operating efficiency and safety. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly explained below. Obviously, the described drawings are only a part of the embodiments of this utility model, and not all of them. Those skilled in the art can obtain other design schemes and drawings based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of the regulator and guide tube after assembly.

[0018] Figure 2 yes Figure 1 A schematic diagram of the AA cross-section.

[0019] Figure 3 This is a three-dimensional view of the guide tube of this utility model.

[0020] Figure 4 This is a perspective view of the adjusting sleeve of this utility model.

[0021] Figure 5 This is a perspective view of the guide sleeve of this utility model.

[0022] Figure 6 This is a three-dimensional view of the entire utility model.

[0023] In the attached diagram: 100-Regulator, 110-Guide sleeve, 111-Instrument access hole, 112-Arc-shaped protrusion, 113-Anti-detachment hole, 114-Connecting groove, 115-Connecting port, 116-Connector head, 117-Suction flushing hole, 120-Adjusting sleeve, 121-Guide groove, 122-Guide notch, 123-Connecting block, 200-Guide tube, 210-Guide protrusion, 300-Sealing cap, 310-Sealing hole, 400-Tee connector, 410-Tee valve, 500-Foot switch. Detailed Implementation

[0024] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0025] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0027] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0028] Reference Figure 1 The laparoscopic aspiration and irrigation device includes an adjuster 100 and a guide tube 200. The adjuster 100 has an aspiration and irrigation port 117, an instrument access port 111, and a mounting hole that are interconnected on its outer side. One end of the guide tube 200 is connected to the mounting hole. The adjuster 100 can drive the guide tube 200 to extend into or out of the adjuster 100.

[0029] As described above, the suction and flushing port 117 on the outside of the regulator 100 can be connected to an external suction or flushing device, and the instrument inlet port 111 can be connected to an external surgical instrument, extending the surgical instrument into the guide tube 200. When the surgical instrument in the guide tube 200 needs to be used, the regulator 100 is used to drive the guide tube 200 into the regulator 100, causing the working head of the surgical instrument to protrude from the end of the guide tube 200. At this time, the surgical instrument can be used for surgical operations. When it is necessary to clean the surgical area, the regulator 100 is used to drive the guide tube 200 outward, causing the guide tube to protrude outward. The guide tube 200 retracts the surgical instruments. At this time, the external suction or flushing device can be used to suction and flush the surgical area through the end of the guide tube 200 away from the regulator 100. After cleaning, the guide tube 200 can be repeatedly inserted into the regulator 100 to continue using the surgical instruments. In this way, by adjusting the guide tube 200, the surgical instruments can be exposed or retracted, thereby realizing the function of cleaning the surgical area or operating the surgical instruments in the guide tube 200. This greatly reduces the number of times surgical instruments need to be changed during the operation, and improves the efficiency and safety of the operation.

[0030] The regulator 100 drives the guide tube 200 to move axially, thereby allowing the guide tube 200 to extend into or out of the regulator 100. There are various structural forms that can achieve this. In one embodiment, the regulator 100 includes a housing and a lead screw. The lead screw is mounted on the outside of the housing. A suction flushing port 117, an instrument access port 111, and a mounting hole are formed on the housing. One end of the guide tube 200 is inserted into the lead screw, and the movable end of the lead screw extends into the housing and is connected to the end of the guide tube 200. When it is necessary to move the guide tube 200, the lead screw directly drives the guide tube 200 to move.

[0031] In order to improve the airtightness of the regulator 100 and reduce production costs, such as Figures 2 to 5As shown, in Embodiment 2, the regulator 100 includes a guide sleeve 110 and an adjusting sleeve 120 rotatably connected to one end of the guide sleeve 110. The suction flushing hole 117 is located on the outside of the guide sleeve 110. The end of the guide sleeve 110 away from the adjusting sleeve 120 forms the instrument inlet hole 111. An arc-shaped protrusion 112 is connected to the end of the guide sleeve 110 near the adjusting sleeve 120. The arc-shaped protrusion 112 is inserted into the adjusting sleeve 120. Multiple arc-shaped protrusions 112 are spaced apart around the central axis of the guide sleeve 110, forming a guide space. One end of the guide tube 200 extends into the adjustment sleeve 120 and is located within the guide space. A guide protrusion 210 is formed on the outer side of the end of the guide tube 200. A guide groove 121 is spirally arranged on the inner side of the adjustment sleeve 120 along its length. The guide protrusion 210 passes through the gap between two arc-shaped protrusions 112 and extends into the guide groove 121. When it is necessary to insert or extend the guide tube 200 into or out of the regulator 100, the adjusting sleeve 120 is rotated, causing the guide protrusion 210 to move relative to each other along the guide groove 121, thereby allowing the guide tube 200 to insert or extend into or out of the regulator 100. For example, rotating the adjusting sleeve 120 in the forward direction causes the adjusting sleeve 120 to rotate relative to the guide sleeve 110. Since the guide protrusion 210 on the guide tube 200 passes through the gap between the two arc-shaped protrusions 112 and extends into the guide groove 121, as the adjusting sleeve 120 rotates, the guide protrusion 210 moves relative to each other within the guide groove 121. The two arc-shaped protrusions 112 restrict the rotation of the guide protrusion 210, so that the guide tube 200 can only move along the adjusting sleeve. The axial movement of 120 extends outward from the adjusting sleeve 120, thereby allowing the guide tube 200 to extend out of the regulator 100. When the adjusting sleeve 120 is rotated in the opposite direction, the adjusting sleeve 120 also rotates relative to the guide sleeve 110. Since the guide protrusion 210 on the guide tube 200 passes through the gap between the two arc-shaped protrusions 112 and extends into the guide groove 121, as the adjusting sleeve 120 rotates, the guide protrusion 210 moves relative to the guide groove 121. The two arc-shaped protrusions 112 restrict the rotation of the guide protrusion 210, so that the guide tube 200 can only move axially along the adjusting sleeve 120 and extend inward into the adjusting sleeve 120, thereby allowing the guide tube 200 to extend into the regulator 100.

[0032] When the guide protrusion 210 moves within the guide groove 121, the spiral extension of the guide groove 121 provides a certain degree of locking effect on the position of the guide protrusion 210. To further improve the locking effect of the guide protrusion 210 after it has moved into position, in this embodiment, the end of the arc-shaped protrusion 112 near the guide sleeve 110 is provided with an anti-disengagement hole 113, the extension direction of which is the same as the extension direction of the guide groove 121. When the guide protrusion 210 moves relative to the guide end within the guide groove 121, the guide tube 200 extends into the adjuster 100 and is inserted into the anti-disengagement hole 113 formed by the arc-shaped protrusion 112 along the guide groove 121. This improves the stability of the positioning of the guide protrusion 210 and the stability of the end of the guide tube 200 after it has moved into position within the adjusting sleeve 120, thereby helping to prevent the guide tube 200 from becoming loose when using surgical instruments.

[0033] In practical applications, two guide protrusions 210 are symmetrically arranged at the end of the guide tube 200, and two arc-shaped protrusions 112 are also arranged on the end face of the adjusting sleeve 120. The two guide protrusions 210 are respectively inserted into the two sides of the two arc-shaped protrusions 112, thereby improving the stability of the guide tube 200 when rotating. In addition, the guide protrusions 210 can be columnar structures, and their circular outer outer walls can reduce friction in the guide groove 121 and improve the smoothness of rotating the adjusting sleeve 120.

[0034] For the rotational connection between the guide sleeve 110 and the adjusting sleeve 120, bearings can be used to connect them directly. However, in order to improve the convenience of disassembly and assembly and reduce production costs, in this embodiment, a connecting groove 114 is provided on the end face of the guide sleeve 110 near the adjusting sleeve 120. The bottom width of the connecting groove 114 is greater than the opening width of the connecting groove 114. A connecting port 115 is provided on the guide sleeve 110 at the opening position of the connecting groove 114. A connecting block 123 is connected to the end face of the adjusting sleeve 120 near the guide sleeve 110. The connecting block 123 passes through the connecting port 115 and is fitted into the connecting groove 114. When assembling and connecting the guide sleeve 110 and the adjusting sleeve 120, the connecting block 123 on the adjusting sleeve 120 can be inserted from the connecting port 115 on the end face of the guide sleeve 110 into the connecting groove 114, so that the connecting block 123 and the connecting groove 114 cooperate with each other. Then, by rotating the adjusting sleeve 120, the connecting block 123 can be moved within the connecting groove 114. At this time, the connecting block 123 and the connecting port 115 are misaligned. Since the bottom width of the connecting groove 114 is greater than the opening width of the connecting groove 114, the adjusting sleeve 120 cannot be directly separated from the guide sleeve 110 along the axial direction. This allows for a quick and stable rotational connection between the guide sleeve 110 and the adjusting sleeve 120. In practical applications, the tight cooperation between the connecting block 123 and the connecting groove 114 can further improve the tightness of the connection between the guide sleeve 110 and the adjusting sleeve 120, thereby improving the airtightness between the guide sleeve 110 and the adjusting sleeve 120.

[0035] The guide tube 200 can be directly inserted into the adjusting sleeve 120 from the end of the adjusting sleeve 120 away from the guide sleeve 110. In order to prevent the guide tube 200 from falling out of the adjusting sleeve 120 when the adjusting sleeve 120 is rotated, in this embodiment, a guide notch 122 is provided on the end face of the adjusting sleeve 120 near the guide sleeve 110. The guide notch 122 is connected to the guide groove 121, and the guide protrusion 210 enters the guide groove 121 through the guide notch 122. When the guide tube 200 and the adjusting sleeve 120 are assembled together, the end of the guide tube 200 away from the guide protrusion 210 is first inserted into the end of the adjusting sleeve 120 where the guide notch 122 is provided, and the guide tube 200 is moved along the axial direction of the adjusting sleeve 120 so that the guide protrusion 210 at the other end of the guide tube 200 enters the guide groove 121 from the guide notch 122. In this way, the connection position between the guide tube 200 and the adjusting sleeve 120 is set at the end close to the guide sleeve 110, so that the guide protrusion 210 will not come out from the end of the adjusting sleeve 120 away from the guide sleeve 110 when it moves relative to the guide groove 121, thereby improving the safety of the guide tube 200.

[0036] After the surgical instruments are inserted into the guide sleeve 110 through the instrument inlet 111, a gap will exist between the surgical instruments and the instrument inlet 111, affecting the airtightness of the adjusting sleeve 120. Therefore, in this embodiment, a sealing cap 300 is connected to the end face of the guide sleeve 110 away from the adjusting sleeve 120. A sealing hole 310 is provided on the sealing cap 300, directly opposite the instrument inlet 111. After the surgical instruments pass through the sealing hole 310 on the sealing cap 300, they are then inserted into the adjuster 100 and the guide tube 200 through the instrument inlet 111. The sealing cap 300 can enhance the seal at the insertion position of the surgical instruments from the instrument inlet 111, improve the airtightness of the guide sleeve 110, and thus improve the efficiency of suction and irrigation of the surgical area through the guide tube 200. In practical applications, the sealing cap 300 can be made of a material with better sealing performance to improve the sealing effect of surgical instruments at the instrument access hole 111. A silicone one-way valve is installed in the sealing hole 310. After other surgical instruments are inserted, the silicone valve is tightly attached to the outer surface of the surgical instrument to prevent gas and liquid from leaking out of the device, thus ensuring the airtightness of the device and further improving the suction and rinsing efficiency.

[0037] The suction and flushing hole 117 can be directly formed on the outside of the guide sleeve 110. In this case, the external device needs to be inserted into the outside of the guide sleeve 110 for connection. However, in this embodiment, a connector 116 is formed on the outside of the guide sleeve 110, and the suction and flushing hole 117 is formed at the end of the connector 116. The connector 116 allows the guide sleeve 110 to be easily connected to the external device, improving assembly and disassembly efficiency and thus enhancing the user experience.

[0038] The external suction and flushing devices can be connected to the suction and flushing port 117 via interchangeable and detachable connections. To further improve ease of use, such as... Figure 6 As shown, in this embodiment, a T-connector 400 is connected to the connector 116. In use, the external suction device and flushing device can be directly connected to the T-connector 400 respectively, thus reducing the disassembly and assembly of external devices during suction and flushing, and further improving surgical efficiency.

[0039] In the above embodiments, the functions can be switched by controlling the external suction device and rinsing device. For easier operation, a three-way valve 410 is provided on the three-way connector 400 in this embodiment. The three-way valve 410 can directly control the internal connection state of the three-way connector 400. For example, when the suction device is needed, only the suction device and the guide tube 200 are connected; when the rinsing device is needed, only the rinsing device and the guide tube 200 are connected, thus further improving the efficiency of function switching.

[0040] This invention also includes a foot switch 500, which is electrically connected to the three-way valve 410. In practical applications, the foot switch 500 can be connected to the three-way valve 410 via a wire to control the opening and closing of the valve. Alternatively, the foot switch 500 and the three-way valve 410 can be connected wirelessly, for example, via Bluetooth. When switching between different functions, the foot switch 500 can be used for control, thus freeing up the hands, reducing hand contamination, and improving operational efficiency and safety.

[0041] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A laparoscopic aspiration and irrigation device, characterized in that: include: The regulator (100) has a suction and flushing port (117), an instrument access port (111) and a mounting hole that are interconnected on the outside. The guide tube (200) is connected at one end to the mounting hole, and the regulator (100) can drive the guide tube (200) to extend into or out of the regulator (100).

2. The laparoscopic aspiration and irrigation device according to claim 1, characterized in that: The regulator (100) includes a guide sleeve (110) and an adjusting sleeve (120) rotatably connected to one end of the guide sleeve (110). The suction flushing hole (117) is located on the outside of the guide sleeve (110). The end of the guide sleeve (110) away from the adjusting sleeve (120) forms the instrument access hole (111). An arc-shaped protrusion (112) is connected to the end of the guide sleeve (110) near the adjusting sleeve (120). The arc-shaped protrusion (112) is inserted into the adjusting sleeve (120). Multiple arc-shaped protrusions (112) are spaced apart around the central axis of the guide sleeve (110), and a guide space is formed between the multiple arc-shaped protrusions (112). One end of the guide tube (200) extends into the adjustment sleeve (120) and is located in the guide space. A guide protrusion (210) is formed on the outer side of the end of the guide tube (200). A guide groove (121) is spirally arranged on the inner side of the adjustment sleeve (120) along its length direction. The guide protrusion (210) passes through the gap between two arc-shaped protrusions (112) and extends into the guide groove (121).

3. The laparoscopic aspiration and irrigation device according to claim 2, characterized in that: The arc-shaped protrusion (112) is provided with an anti-detachment groove hole (113) near the end of the guide sleeve (110), and the extension direction of the anti-detachment groove hole (113) is the same as the extension direction of the guide groove (121).

4. The laparoscopic aspiration and irrigation device according to claim 2, characterized in that: The guide sleeve (110) has a connecting groove (114) on its end face near the adjusting sleeve (120). The bottom width of the connecting groove (114) is greater than the opening width of the connecting groove (114). The guide sleeve (110) has a connecting port (115) at the opening position of the connecting groove (114). The adjusting sleeve (120) has a connecting block (123) connected to its end face near the guide sleeve (110). The connecting block (123) passes through the connecting port (115) and is fitted into the connecting groove (114).

5. The laparoscopic aspiration and irrigation device according to claim 2, characterized in that: The adjusting sleeve (120) has a guide notch (122) on its end face near the guide sleeve (110). The guide notch (122) is connected to the guide groove (121). The guide protrusion (210) enters the guide groove (121) through the guide notch (122).

6. The laparoscopic aspiration and irrigation device according to claim 2, characterized in that: The end face of the guide sleeve (110) away from the adjusting sleeve (120) is connected to a sealing cap (300), and a sealing hole (310) is provided on the sealing cap (300) at the position opposite to the instrument access hole (111).

7. The laparoscopic aspiration and irrigation device according to claim 2, characterized in that: A connector (116) is formed on the outer side of the guide sleeve (110), and the suction flushing hole (117) is formed at the end of the connector (116).

8. The laparoscopic aspiration and irrigation device according to claim 7, characterized in that: A tee connector (400) is connected to the connector (116).

9. The laparoscopic aspiration and irrigation device according to claim 8, characterized in that: A three-way valve (410) is provided on the three-way connector (400).

10. The laparoscopic aspiration and irrigation device according to claim 9, characterized in that: It also includes a foot switch (500) which is electrically connected to the three-way valve (410).

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