Auxiliary smoke exhaust and drainage device for single-port laparoscopic surgery and use method of auxiliary smoke exhaust and drainage device

Abstract

The invention relates to the technical field of laparoscope smoke exhaust, and discloses an auxiliary smoke exhaust and drainage device for a single-port laparoscopic surgery and a using method thereof.The auxiliary smoke exhaust and drainage device comprises a pre-filtering box, a circular cover is arranged on the back face of the pre-filtering box, a smoke filter is arranged on the back face of the circular cover, and an air suction pump is arranged on the back face of the smoke filter; the round cover, the smoke filter and the air suction pump are all connected through an air suction pipe, the anti-blocking mechanism comprises a sliding round box installed in the pre-filtering box in a sliding mode, the back face of the sliding round box extends out of the pre-filtering box, the back face of the sliding round box is fixedly connected with the round cover, and the round cover is fixedly connected with the air suction pipe. A plurality of ventilation holes are formed in the front face of the sliding round box, and a semicircular groove is formed in the back face of the sliding round box. The rotating shaft can drive the multiple cleaning plates to rotate, the cleaning plates can clean tissue and blood clots adsorbed to the ventilation holes in the rotating process, and the situation that the normal smoke suction function of the device is affected due to the fact that the ventilation holes are blocked is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of laparoscopic smoke exhaust equipment, and in particular to an auxiliary smoke exhaust and drainage device for single-port laparoscopic surgery and a use method thereof. Background Art

[0002] Transumbilical single-port laparoscopic surgery is the most advanced minimally invasive technology in the world. During the operation, surgical instruments and equipment enter the abdominal cavity through the umbilical hole, and the umbilical folds are used to cover the surgical incision. Transumbilical single-port laparoscopic technology is a traditional laparoscopic surgery that is changed from four holes, three holes, or two holes to one hole, and the angle becomes zero. It has the characteristics of minimally invasive, safety, economy, and cosmetic effects. When performing surgery on patients, because water vapor and cut tissue and other debris in the abdominal cavity will affect the operating field of view, it is not conducive to the progress of the operation, so the smoke in the abdominal cavity needs to be extracted.

[0003] During the process of extracting smoke from the abdominal cavity, the drainage tube may inhale tiny tissues and blood vessels in the abdominal cavity. Especially when dealing with some soft and easily broken tissues (such as adipose tissue), blockage is more likely to occur. Once the drainage tube is blocked, smoke exhaust will be poor and the surgical field of view will be quickly covered by smoke, affecting the surgical operation. Summary of the invention

[0004] The purpose of the present invention is to provide an auxiliary smoke exhaust and drainage device for single-port laparoscopic surgery and a method of using the same, so as to solve the problem that the drainage smoke tube may suck in tiny tissues and blood vessels in the abdominal cavity, especially when dealing with some soft and easily broken tissues (such as adipose tissue), blockage is more likely to occur. Once the drainage tube is blocked, smoke exhaust will be poor, the surgical field of view will be quickly covered by smoke, and the surgical operation will be affected.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The present invention is an auxiliary smoke exhaust and drainage device for single-port laparoscopic surgery, comprising a pre-filter box, a circular cover is arranged on the back of the pre-filter box, a smoke filter is arranged on the back of the circular cover, a suction pump is arranged on the back of the smoke filter, the circular cover, the smoke filter and the suction pump are all connected through a suction pipe, and further comprising:

[0007] The anti-blocking mechanism comprises a sliding circular box slidably installed in the pre-filter box, the back of the sliding circular box extends to the outside of the pre-filter box, the back of the sliding circular box is fixedly connected to the circular cover, the front of the sliding circular box is provided with a plurality of ventilation holes, the back of the sliding circular box is provided with a semicircular groove, a rotating shaft is rotatably installed in the sliding circular box, a plurality of transmission fan blades are fixedly installed on the rotating shaft, a plurality of cleaning plates are fixedly installed on the outer wall of the semicircular groove, and the backs of the plurality of cleaning plates are in contact with the sliding circular box.

[0008] Further, an arc-shaped groove is formed in the inner wall of the bottom of the semi-circular groove. An arc-shaped plate is rotatably installed in the arc-shaped groove, and a rotating rod is rotatably installed in the arc-shaped groove. The rotating rod penetrates through the arc-shaped plate and is fixedly connected to the arc-shaped plate. The end of the rotating rod extends outside the circular cover and is rotatably connected to the circular cover.

[0009] Further, an adjusting mechanism is arranged on the rotating rod. The adjusting mechanism includes a circular plate fixedly sleeved on the rotating rod. A U-shaped plate is fixedly installed on the back of the circular plate, and a plurality of limiting grooves are formed in the outer wall of the U-shaped plate.

[0010] Further, a plurality of mounting arc plates are fixedly installed on the back of the circular cover. T-shaped rods are respectively slidably installed on the plurality of mounting arc plates. The plurality of T-shaped rods respectively penetrate through the plurality of mounting arc plates. Adjusting springs are respectively sleeved on the plurality of T-shaped rods. One ends of the plurality of adjusting springs away from each other are respectively fixedly connected to the plurality of T-shaped rods. The bottom ends of the plurality of adjusting springs are respectively fixedly connected to the plurality of mounting arc plates. The bottom ends of the plurality of T-shaped rods are respectively fixedly installed with trapezoidal arc blocks. The plurality of trapezoidal arc blocks respectively extend into the plurality of limiting grooves and are respectively adapted to the plurality of limiting grooves.

[0011] Further, a closing mechanism is arranged in the pre-filter box. The closing mechanism includes an arc-shaped hollow circular plate fixedly installed on the inner wall of the front of the pre-filter box. A drainage pipe is fixedly installed on the front of the pre-filter box. Two hollow boxes are slidably installed in the pre-filter box. The two hollow boxes both penetrate through the pre-filter box. A plurality of cleaning grooves are respectively formed in the two hollow boxes. Two L-shaped plates are respectively fixedly installed on one sides of the two hollow boxes away from each other. Closing springs are respectively fixedly installed on the inner walls of one sides of the plurality of L-shaped plates away from each other. One ends of the plurality of closing springs close to each other are fixedly connected to the pre-filter box. Two anchor-shaped plates are respectively fixedly installed on one sides of the two hollow boxes close to each other.

[0012] Further, a fixing mechanism is arranged on the pre-filter box. The fixing mechanism includes a circular block fixedly installed on the front of the pre-filter box. A plurality of suction cups are fixedly installed on the front of the circular block. An air cavity is formed in the circular block. Two circular tubes are fixedly installed on the inner wall of the front of the pre-filter box. The two circular tubes are both communicated with the air cavity. The plurality of suction cups are all communicated with the air cavity.

[0013] Further, rectangular grooves are respectively formed in the two circular tubes. Fixing springs are respectively fixedly installed on the inner walls of the fronts of the two rectangular grooves. Rectangular sliding tubes are respectively fixedly installed on the backs of the two fixing springs. The ends of the two rectangular sliding tubes respectively extend outside the two rectangular grooves. Conical ring grooves are respectively formed in the two rectangular sliding tubes.

[0014] Furthermore, the method of the auxiliary smoke exhaust and drainage device for single-port laparoscopic surgery comprises the following steps:

[0015] S1: filtration tissue blood vessels;

[0016] S2: Easy to clean the device;

[0017] S3: regulating device flow;

[0018] S4: Improve device stability.

[0019] The present invention has the following beneficial effects:

[0020] (1) The present invention provides an auxiliary smoke exhaust and drainage device for single-port laparoscopic surgery. When in use, the suction pump is started, and the suction pump generates a suction force, which will suck air into the pre-filter box through the suction pipe, the smoke filter and the circular cover. During the suction process, the smoke in the patient's body will be sucked out through the drainage pipe. During the smoking process, blood clots or crushed tissues will be sucked into the pre-filter box. Larger tissues or blood clots will directly fall onto the inner wall of the pre-filter box and will not be adsorbed by the ventilation holes, while smaller tissues will be adsorbed onto the ventilation holes under the suction force. Under the action of the suction force, the transmission blades in the sliding circular box will rotate under the action of the airflow, and the transmission blades will drive the rotating shaft to rotate, and the rotating shaft will drive a number of cleaning plates to rotate. During the rotation process, the cleaning plates will clean up the tissues and blood clots adsorbed onto the ventilation holes, thereby preventing the ventilation holes from being blocked and affecting the normal smoking function of the device.

[0021] (2) The present invention provides an auxiliary smoke exhaust and drainage device for single-port laparoscopic surgery. After the suction pump is started, the rotation of the cleaning plate will contact the anchor plate. The anchor plate will move away from the pre-filter box under the action of its arc surface. The anchor plate will drive the hollow box to move, and the hollow box will drive the L-shaped plate to rise. At this time, the closing spring will be stretched and deformed. When the cleaning groove on the hollow box leaves the inner cavity of the pre-filter box, the pre-filter box will be in a sealed state, and the suction force of the drainage tube will be improved. After using the device, the cleaning plate stops rotating. At this time, the closing spring will cause the cleaning groove to re-enter the inner cavity of the pre-filter box under the action of its elastic force. The device is removed, and cleaning liquid is injected into the pre-filter box through the cleaning groove for cleaning and flushing, so as to remove tissues and blood clots in the pre-filter box and improve the cleaning convenience of the device.

[0022] (3) In the auxiliary smoke exhaust and drainage device for single-port laparoscopic surgery of the present invention, when it is necessary to adjust the smoke flow rate of the device, rotate the U-shaped plate. The U-shaped plate drives the circular plate to rotate, the circular plate drives the rotating rod to rotate, and the rotating rod drives the arc-shaped plate to rotate. When the circular plate rotates, it will drive the limiting groove to rotate, and the limiting groove will extrude the corresponding trapezoidal arc block. The trapezoidal arc block drives the T-shaped rod to move. At this time, the adjusting spring will undergo tensile deformation. When the arc-shaped plate is adjusted to the appropriate position, the T-shaped rod will drive the trapezoidal arc block into the corresponding limiting groove under the elastic force of the adjusting spring, thus completing the adjustment of the smoke flow rate and improving the stability of the adjustment.

[0023] (4) In the auxiliary smoke exhaust and drainage device for single-port laparoscopic surgery of the present invention, before starting the suction pump, apply some sealing gel in the suction cup. The gel can improve the sealing performance between the suction cup and the skin, making the suction cup better adhere to the skin. After starting the device, the suction force will suck air through the rectangular slide tube, rectangular groove, air cavity and suction cup, further improving the adhesion of the suction cup to the skin and enhancing the stability of the device during use. During the rotation of the cleaning plate, it will contact the conical ring groove. The conical ring groove will drive the rectangular slide tube to slide into the rectangular groove under the action of its inclined surface. After the cleaning plate passes through the conical ring groove, the conical ring groove will slide out of the rectangular groove again. At this time, when the cleaning plate contacts the conical ring groove, it will generate vibration, preventing blood clots and fine tissues in the pre-filter box from being sucked into the rectangular slide tube. The vibration can shake out the tissue blood clots, ensuring the continuous suction force of the suction cup and the continuous stability of the device.

[0024] Of course, it is not necessary for any product implementing the present invention to achieve all the above-mentioned advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0026] Figure 1 is the overall structural schematic diagram of the present invention;

[0027] Figure 2 is the side cross-sectional structural schematic diagram of the present invention;

[0028] Figure 3 is for the present invention Figure 2 the enlarged structural schematic diagram of A in;

[0029] Figure 4 is for the present invention Figure 2 the enlarged structural schematic diagram of B in;

[0030] Figure 5Schematic diagram of the partial sectional structure of the present invention;

[0031] Figure 6 The present invention Figure 5 Schematic diagram of the enlarged structure of C in the present invention;

[0032] Figure 7 Schematic diagram of the partial sectional structure of the circular tube of the present invention;

[0033] Figure 8 Schematic diagram of the method steps of the present invention.

[0034] In the attached drawings, the list of components represented by each reference numeral is as follows:

[0035] In the figure: 1. Prefilter box; 2. Circular cover; 3. Flue gas filter; 4. Suction pump; 5. Anti-blocking mechanism; 501. Sliding circular box; 502. Ventilation hole; 503. Semi-circular groove; 504. Rotating shaft; 505. Driving fan blade; 506. Cleaning plate; 507. Arc-shaped groove; 508. Arc-shaped plate; 509. Rotating rod; 6. Adjusting mechanism; 601. Circular plate; 602. C-shaped plate; 603. Limiting groove; 604. Installation arc plate; 605. T-shaped rod; 606. Adjusting spring; 607. Trapezoidal arc block; 7. Closing mechanism; 701. Arc-shaped hollow circular plate; 702. Drainage pipe; 703. Hollow box; 704. Cleaning groove; 705. L-shaped plate; 706. Closing spring; 707. Anchor-shaped plate; 8. Fixing mechanism; 801. Circular block; 802. Suction cup; 803. Air cavity; 804. Circular tube; 805. Rectangular groove; 806. Fixing spring; 807. Rectangular sliding tube; 808. Conical ring groove. Detailed implementation manners

[0036] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0037] Please refer to Figure 1 - Figure 8 As shown, the present invention is an auxiliary smoke exhaust and drainage device for single-port laparoscopic surgery, including a prefilter box 1, a circular cover 2 is arranged on the back of the prefilter box 1, a flue gas filter 3 is arranged on the back of the circular cover 2, a suction pump 4 is arranged on the back of the flue gas filter 3, the circular cover 2, the flue gas filter 3 and the suction pump 4 are all connected by a suction pipe, and further includes:

[0038] Anti-blocking mechanism 5, the anti-blocking mechanism 5 includes a sliding circular box 501 slidably installed in the pre-filter box 1, the back of the sliding circular box 501 extends outside the pre-filter box 1, the back of the sliding circular box 501 is fixedly connected to the circular cover 2, a plurality of ventilation holes 502 are formed in the front of the sliding circular box 501, a semi-circular groove 503 is formed in the back of the sliding circular box 501, a rotating shaft 504 is rotatably installed in the sliding circular box 501, a plurality of driving fan blades 505 are fixedly installed on the rotating shaft 504, a plurality of cleaning plates 506 are fixedly installed on the outer wall of the semi-circular groove 503, and the backs of the plurality of cleaning plates 506 are all in contact with the sliding circular box 501.

[0039] As Figure 3 shown, an arc-shaped groove 507 is formed in the bottom inner wall of the semi-circular groove 503, an arc-shaped plate 508 is rotatably installed in the arc-shaped groove 507, a rotating rod 509 is rotatably installed in the arc-shaped groove 507, the rotating rod 509 penetrates through the arc-shaped plate 508 and is fixedly connected to the arc-shaped plate 508, and the end of the rotating rod 509 extends outside the circular cover 2 and is rotatably connected to the circular cover 2.

[0040] The rotating rod 509 drives the arc-shaped plate 508 to rotate. When the circular plate 601 rotates, it will drive the limiting groove 603 to rotate, and the limiting groove 603 will squeeze out the corresponding trapezoidal arc block 607.

[0041] As Figure 3 shown, an adjusting mechanism 6 is arranged on the rotating rod 509. The adjusting mechanism 6 includes a circular plate 601 fixedly sleeved on the rotating rod 509, a U-shaped plate 602 is fixedly installed on the back of the circular plate 601, and a plurality of limiting grooves 603 are formed in the outer wall of the U-shaped plate 602.

[0042] When it is necessary to adjust the flue gas flow of the device, rotate the U-shaped plate 602. The U-shaped plate 602 drives the circular plate 601 to rotate, and the circular plate 601 drives the rotating rod 509 to rotate.

[0043] As Figure 3 shown, a plurality of installation arc plates 604 are fixedly installed on the back of the circular cover 2. A plurality of T-shaped rods 605 are respectively slidably installed on the plurality of installation arc plates 604. The plurality of T-shaped rods 605 respectively penetrate through the plurality of installation arc plates 604. A plurality of adjusting springs 606 are respectively sleeved on the plurality of T-shaped rods 605. The mutually remote ends of the plurality of adjusting springs 606 are respectively fixedly connected to the plurality of T-shaped rods 605. The bottom ends of the plurality of adjusting springs 606 are respectively fixedly connected to the plurality of installation arc plates 604. The bottom ends of the plurality of T-shaped rods 605 are respectively fixedly installed with trapezoidal arc blocks 607. The plurality of trapezoidal arc blocks 607 respectively extend into the plurality of limiting grooves 603 and are respectively adapted to the plurality of limiting grooves 603.

[0044] The trapezoidal arc block 607 drives the T-shaped rod 605 to move, and the adjusting spring 606 will be stretched and deformed at this time. When the arc plate 508 is adjusted to a suitable position, the T-shaped rod 605 will drive the trapezoidal arc block 607 to enter the corresponding limiting groove 603 under the elastic force of the adjusting spring 606, thereby completing the adjustment of the flue gas flow and improving the stability of the adjustment.

[0045] like Figure 2 and Figure 4 As shown, a closing mechanism 7 is provided in the pre-filter box 1, and the closing mechanism 7 includes an arc-shaped hollow circular plate 701 fixedly mounted on the inner wall of the front side of the pre-filter box 1, a drainage pipe 702 is fixedly mounted on the front side of the pre-filter box 1, two hollow boxes 703 are slidably mounted in the pre-filter box 1, both hollow boxes 703 penetrate the pre-filter box 1, and a plurality of cleaning grooves 704 are respectively opened on the two hollow boxes 703, two L-shaped plates 705 are respectively fixedly mounted on the sides of the two hollow boxes 703 away from each other, closing springs 706 are respectively fixedly mounted on the inner walls of the sides of the several L-shaped plates 705 away from each other, and the ends of the several closing springs 706 close to each other are fixedly connected to the pre-filter box 1, and two anchor plates 707 are respectively fixedly mounted on the sides of the two hollow boxes 703 close to each other.

[0046] The rotation of the cleaning plate 506 will contact the anchor plate 707, and the anchor plate 707 will move away from the pre-filter box 1 under the action of its arc surface, and the anchor plate 707 will drive the hollow box 703 to move, and the hollow box 703 will drive the L-shaped plate 705 to rise. At this time, the closing spring 706 will be stretched and deformed. When the cleaning groove 704 on the hollow box 703 leaves the inner cavity of the pre-filter box 1, the pre-filter box 1 will be in a sealed state, and the suction force of the drainage tube 702 will be increased. After using the device, the cleaning plate 506 stops rotating. At this time, the closing spring 706 will cause the cleaning groove 704 to re-enter the inner cavity of the pre-filter box 1 under the action of its elastic force. The device is removed, and cleaning liquid is injected into the pre-filter box 1 through the cleaning groove 704 for cleaning and flushing, so as to remove the tissue and blood clots in the pre-filter box 1 and improve the cleaning convenience of the device.

[0047] like Figure 6 As shown, the pre-filter box 1 is provided with a fixing mechanism 8, which includes a circular block 801 fixedly mounted on the front side of the pre-filter box 1, a plurality of suction cups 802 fixedly mounted on the front side of the circular block 801, an air cavity 803 is opened in the circular block 801, two circular tubes 804 are fixedly mounted on the front inner wall of the pre-filter box 1, the two circular tubes 804 are both communicated with the air cavity 803, and a plurality of suction cups 802 are both communicated with the air cavity 803.

[0048] Before starting the suction pump 4, some sealing gel is applied inside the suction cup 802. The gel can improve the sealing performance between the suction cup 802 and the skin, so that the suction cup 802 can better adhere to the skin.

[0049] like Figure 7 As shown, rectangular grooves 805 are respectively opened in the two circular tubes 804, and fixing springs 806 are respectively fixedly installed on the front inner walls of the two rectangular grooves 805, and rectangular sliding tubes 807 are respectively fixedly installed on the backs of the two fixing springs 806. The ends of the two rectangular sliding tubes 807 extend outside the two rectangular grooves 805, and conical annular grooves 808 are respectively opened on the two rectangular sliding tubes 807.

[0050] After starting the device, the suction force will suck air through the rectangular slide tube 807, the rectangular groove 805, the air cavity 803 and the suction cup 802, further improving the close contact of the suction cup 802 to the skin and improving the stability of the device when in use. During the rotation of the cleaning plate 506, it will contact the conical annular groove 808. The conical annular groove 808 will drive the rectangular slide tube 807 to slide into the rectangular groove 805 under the action of its inclined surface. After the cleaning plate 506 passes through the conical annular groove 808, the conical annular groove 808 will slide out of the rectangular groove 805 again. At this time, the cleaning plate 506 will vibrate when it contacts the conical annular groove 808, so as to prevent blood clots and fine tissues in the pre-filter box 1 from being sucked into the rectangular slide tube 807. The vibration can vibrate out the tissue blood clots, thereby ensuring the continuous suction of the suction cup 802 and the continuous stability of the device.

[0051] like Figure 1 - Figure 8 As shown, a method of assisting smoke exhaust and drainage device for single-port laparoscopic surgery, the method steps are as follows:

[0052] S1: filtration tissue blood vessels;

[0053] S2: Easy to clean the device;

[0054] S3: regulating device flow;

[0055] S4: Improve device stability.

[0056] When in use, the suction pump 4 is started, and the suction pump 4 generates a suction force, which will suck air into the pre-filter box 1 through the suction pipe, the smoke filter 3 and the circular cover 2. During the suction process, the smoke in the patient's body will be sucked out through the drainage tube 702. During the smoking process, blood clots or crushed tissues will be sucked into the pre-filter box 1. Tissues or blood clots with larger mass will directly fall onto the inner wall of the pre-filter box 1 and will not be adsorbed by the ventilation holes 502, while smaller tissues will be sucked onto the ventilation holes 502 under the suction force. Under the action of the suction force, the transmission blades 505 in the sliding circular box 501 will rotate under the action of the airflow, and the transmission blades 505 will drive the rotating shaft 504 to rotate, and the rotating shaft 504 will drive several cleaning plates 506 to rotate. The cleaning plates 506 will clean up the tissues and blood clots adsorbed onto the ventilation holes 502 during the rotation process to avoid blockage of the ventilation holes 502. After the suction pump 4 is started, the rotation of the cleaning plate 506 will contact the anchor plate 707, and the anchor plate 707 will move away from the pre-filter box 1 under the action of its arc surface, and the anchor plate 707 will drive the hollow box 703 to move, and the hollow box 703 will drive the L-shaped plate 705 to rise. At this time, the closing spring 706 will be stretched and deformed. When the cleaning groove 704 on the hollow box 703 leaves the inner cavity of the pre-filter box 1, the pre-filter box 1 will be in a sealed state, and the suction force of the drainage tube 702 will be increased. After using the device, the cleaning plate 506 stops rotating. At this time, the closing spring 706 will make the cleaning groove 704 enter the inner cavity of the pre-filter box 1 again under the action of its elastic force, and the device is removed. Cleaning liquid is injected into the pre-filter box 1 through the cleaning groove 704 to clean and rinse, remove tissue and blood clots in the pre-filter box 1, and improve the cleaning convenience of the device;

[0057] When it is necessary to adjust the flue gas flow rate of the device, rotate the U-shaped plate 602. The U-shaped plate 602 drives the circular plate 601 to rotate. The circular plate 601 drives the rotating rod 509 to rotate. The rotating rod 509 drives the arc-shaped plate 508 to rotate. When the circular plate 601 rotates, it will drive the limiting groove 603 to rotate. The limiting groove 603 will squeeze out the corresponding trapezoidal arc block 607. The trapezoidal arc block 607 drives the T-shaped rod 605 to move. At this time, the adjusting spring 606 will undergo tensile deformation. When the arc-shaped plate 508 is adjusted to the appropriate position, the T-shaped rod 605 will drive the trapezoidal arc block 607 to enter the corresponding limiting groove 603 under the elastic force of the adjusting spring 606, thus completing the adjustment of the flue gas flow rate and improving the stability of the adjustment. Before starting the air suction pump 4, apply some sealing gel in the suction cup 802. The gel can improve the sealing performance between the suction cup 802 and the skin, making the suction cup 802 fit the skin better. After starting the device, the suction force will suck air through the rectangular slide tube 807, rectangular groove 805, air cavity 803 and suction cup 802, further improving the tightness of the suction cup 802 against the skin and the stability of the device during use. During the rotation of the cleaning plate 506, it will contact the conical ring groove 808. The conical ring groove 808 will drive the rectangular slide tube 807 to slide into the rectangular groove 805 under the action of its inclined surface. After the cleaning plate 506 passes through the conical ring groove 808, the conical ring groove 808 will slide out of the rectangular groove 805 again. At this time, when the cleaning plate 506 contacts the conical ring groove 808, it will generate vibration, preventing blood clots and fine tissues in the pre-filter box 1 from being sucked into the rectangular slide tube 807. The vibration can shake out the tissue blood clots, ensuring the continuous suction force of the suction cup 802 and the continuous stability of the device.

[0058] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principle and practical application of the present invention, so that those skilled in the art can understand and utilize the present invention well. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. An auxiliary smoke exhaust and drainage device for single-port laparoscopic surgery, comprising a pre-filter box (1), a circular cover (2) is arranged on the back of the pre-filter box (1), a smoke filter (3) is arranged on the back of the circular cover (2), a suction pump (4) is arranged on the back of the smoke filter (3), the circular cover (2), the smoke filter (3) and the suction pump (4) are all connected through a suction pipe, characterized in that: Also included are: A blockage prevention mechanism (5), the blockage prevention mechanism (5) includes a sliding circular box (501) slidably installed in the pre-filter box (1), the back of the sliding circular box (501) extends outside the pre-filter box (1), the back of the sliding circular box (501) is fixedly connected to the circular cover (2), a plurality of ventilation holes (502) are formed in the front of the sliding circular box (501), a semi-circular groove (503) is formed in the back of the sliding circular box (501), a rotating shaft (504) is rotatably installed in the sliding circular box (501), a plurality of driving fan blades (505) are fixedly installed on the rotating shaft (504), a plurality of cleaning plates (506) are fixedly installed on the outer wall of the semi-circular groove (503), and the backs of the plurality of cleaning plates (506) are all in contact with the sliding circular box (501).

2. The auxiliary smoke exhaust and drainage device for single-port laparoscopic surgery according to claim 1, characterized in that: An arc-shaped groove (507) is formed in the bottom inner wall of the semi-circular groove (503), an arc-shaped plate (508) is rotatably installed in the arc-shaped groove (507), a rotating rod (509) is rotatably installed in the arc-shaped groove (507), the rotating rod (509) penetrates through the arc-shaped plate (508) and is fixedly connected to the arc-shaped plate (508), and the end of the rotating rod (509) extends outside the circular cover (2) and is rotatably connected to the circular cover (2).

3. The auxiliary smoke exhaust and drainage device for single-port laparoscopic surgery according to claim 2, characterized in that: An adjusting mechanism (6) is arranged on the rotating rod (509), the adjusting mechanism (6) includes a circular plate (601) fixedly sleeved on the rotating rod (509), a U-shaped plate (602) is fixedly installed on the back of the circular plate (601), and a plurality of limiting grooves (603) are formed in the outer wall of the U-shaped plate (602).

4. The auxiliary smoke exhaust and drainage device for single-port laparoscopic surgery according to claim 3, characterized in that: A plurality of mounting arc plates (604) are fixedly installed on the back of the circular cover (2), a plurality of T-shaped rods (605) are respectively slidably installed on the plurality of mounting arc plates (604), the plurality of T-shaped rods (605) respectively penetrate through the plurality of mounting arc plates (604), a plurality of adjusting springs (606) are respectively sleeved on the plurality of T-shaped rods (605), one ends of the plurality of adjusting springs (606) away from each other are respectively fixedly connected to the plurality of T-shaped rods (605), the bottom ends of the plurality of adjusting springs (606) are respectively fixedly connected to the plurality of mounting arc plates (604), the bottom ends of the plurality of T-shaped rods (605) are respectively fixedly installed with trapezoidal arc blocks (607), and the plurality of trapezoidal arc blocks (607) respectively extend into the plurality of limiting grooves (603) and are respectively adapted to the plurality of limiting grooves (603).

5. The auxiliary smoke exhaust and drainage device for single-port laparoscopic surgery according to claim 4, characterized in that: The pre-filter box (1) is provided with a closing mechanism (7), the closing mechanism (7) comprising an arc-shaped hollow circular plate (701) fixedly mounted on the front inner wall of the pre-filter box (1), a drainage pipe (702) fixedly mounted on the front of the pre-filter box (1), two hollow boxes (703) slidably mounted in the pre-filter box (1), the two hollow boxes (703) both penetrate the pre-filter box (1), a plurality of cleaning slots (704) are respectively provided on the two hollow boxes (703), two L-shaped plates (705) are respectively fixedly mounted on the sides of the two hollow boxes (703) away from each other, closing springs (706) are respectively fixedly mounted on the inner walls of the sides of the L-shaped plates (705) away from each other, the ends of the closing springs (706) close to each other are fixedly connected to the pre-filter box (1), and two anchor plates (707) are respectively fixedly mounted on the sides of the two hollow boxes (703) close to each other.

6. The auxiliary smoke exhaust and drainage device for single-port laparoscopic surgery according to claim 5, characterized in that: The pre-filter box (1) is provided with a fixing mechanism (8), the fixing mechanism (8) comprising a circular block (801) fixedly mounted on the front face of the pre-filter box (1), a plurality of suction cups (802) fixedly mounted on the front face of the circular block (801), an air cavity (803) being provided in the circular block (801), two circular tubes (804) fixedly mounted on the inner wall of the front face of the pre-filter box (1), the two circular tubes (804) both being in communication with the air cavity (803), and the plurality of suction cups (802) both being in communication with the air cavity (803).

7. The auxiliary smoke exhaust and drainage device for single-port laparoscopic surgery according to claim 6, characterized in that: A rectangular groove (805) is respectively provided in the two circular tubes (804), a fixing spring (806) is respectively fixedly installed on the front inner wall of the two rectangular grooves (805), a rectangular slide tube (807) is respectively fixedly installed on the back of the two fixing springs (806), the ends of the two rectangular slide tubes (807) respectively extend outside the two rectangular grooves (805), and a conical annular groove (808) is respectively provided on the two rectangular slide tubes (807).

8. A method for using the auxiliary smoke exhaust and drainage device for single-port laparoscopic surgery, using the auxiliary smoke exhaust and drainage device for single-port laparoscopic surgery as claimed in claim 7, characterized in that: The steps are as follows: S1: filtration tissue blood vessels; S2: Easy to clean the device; S3: regulating device flow; S4: Improve device stability.

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