Antiskid rotatable bent three-blade forceps with suction function for laparoscopic surgery

Abstract

The utility model relates to the technical field of medical instruments, in particular to a pair of anti-slip rotatable bent three-blade forceps with a suction function for laparoscopic surgery, which comprises a forceps seat, blades, an opening mechanism, a forceps tube, a rotating mechanism, an inner tube, a rotating wheel, a pull rod, a pull wire, a handle and a suction tube, the blade is connected with the clamp seat through an opening mechanism, a rotating opening is formed in the head end of the clamp pipe, the clamp seat is installed on the rotating opening, the inner pipe is located in a pipe cavity of the clamp pipe, a rotating hole is formed in the tail end of the clamp pipe, the inner pipe penetrates through the rotating hole, the head end of the inner pipe is connected with the clamp seat through a rotating mechanism, and the rotating axis of the clamp seat is perpendicular to the rotating axis of the inner pipe. The utility model has the advantages that the front end of the blade is provided with the arc-shaped hook claw, so that deep pelvic tissues can be firmly grasped, and slipping can be effectively avoided; the rotating wheel is operated to adjust the angle of the clamp seat at the rotating opening through the inner pipe and the rotating mechanism, so that the traction effect of the blades is improved; a special suction channel is arranged in the forceps tube and used for sucking smoke, blood and interstitial fluid generated in the operation process.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to a pair of anti-slip rotatable curved three-leaf forceps with a suction function for laparoscopic surgery. Background Art

[0002] Laparoscopic surgery involves inserting a laparoscope and other surgical instruments through the abdominal trocar opening. For example, during laparoscopic-assisted colorectal cancer surgery, particularly pelvic surgery, surgeons frequently use trilobite forceps, aspirators, ultrasonic scalpels, and electrocautery. The blades of the trilobite forceps can be opened and closed to hold, block, and retract tissue for a better surgical field of view. The electrocautery is then used to cut the colorectal tissue. This process produces a large amount of smoke, which affects the clarity of the surgical field of view. It also produces blood and tissue fluid, which require the use of aspirators. Using aspirators can easily cause the intestine, which was previously held open by the trilobite forceps, to return to its original position, again obscuring the surgical field of view. This not only increases the complexity of the surgical procedure but also tends to prolong the operation, increase surgical risks, and lead to surgical errors.

[0003] Traditional tri-leaf forceps have a single function and are only used to spread, block and pull tissue. In the pelvic area of ​​the abdomen, tri-leaf forceps are usually used to pull pelvic tissue to obtain a better surgical field of view. The utility model patent document with announcement number CN208145037U discloses a tri-leaf forceps for surgery. Traditional tri-leaf forceps do not have an anti-slip function, and the blades of the tri-leaf forceps are prone to slipping when grasping deep pelvic tissue; the clamp seat of traditional tri-leaf forceps does not have a rotation function, and the tri-leaf forceps have a poor pulling effect on pelvic tissue. In order to increase the pulling effect, doctors currently swing the clamp tube of the tri-leaf forceps by hand to adjust the clamp seat angle. This operation is complicated and the clamp tube is prone to interfere with other surgical instruments; traditional tri-leaf forceps do not have a suction function, and require frequent alternating use of a suction device to suck away the smoke, blood and tissue fluid generated during the tissue cutting process. Therefore, there is an urgent need in this field for a tri-leaf forceps for laparoscopic surgery that is anti-slip, rotatable, and curved with a suction function. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a three-leaf forceps for laparoscopic surgery which is anti-slip, rotatable and curved with a suction function.

[0005] The utility model is realized as follows: a non-slip rotatable curved three-leaf forceps for laparoscopic surgery with a suction function, comprising:

[0006] Clamp base, blades, opening mechanism, clamp tube, rotating mechanism, inner tube, rotating wheel, pull rod, traction line, handle, suction tube and locking mechanism;

[0007] The blade is connected to the clamp seat through the opening mechanism, the head end of the clamp tube is provided with a rotating port, the clamp seat is installed in the rotating port, the inner tube is located in the tubular cavity of the clamp tube, the tail end of the clamp tube is provided with a rotating hole, the inner tube passes through the rotating hole, the head end of the inner tube is connected to the clamp seat through the rotating mechanism, the rotating axis of the clamp seat is perpendicular to the rotating axis of the inner tube, the tail end of the inner tube is fixedly connected to the rotating wheel, the rotating wheel is also connected to the handle through the locking mechanism, the pull rod It is slidingly connected to the lumen of the inner tube, the head end of the pull rod is connected to the opening mechanism through the traction line, the tail end of the pull rod passes through the tail end of the inner tube and is connected to the handle, the front end of the blade is an arc-shaped hook, and the handle is also connected to the tail end of the clamp tube through a fixed plate. There is a suction channel between the inner tube and the clamp tube, and a suction port is also provided at the tail end of the clamp tube, the suction port is communicated with the suction channel, and the suction channel is also communicated with the rotating port, and the suction straw is installed at the suction port.

[0008] Furthermore, the rotating mechanism includes a gear, the head end of the inner tube has a gear ring, the clamp seat is hinged to the rotating mouth, the gear is fixedly connected to the clamp seat, the rotation axis of the gear is the same as the rotation axis of the clamp seat, and the gear ring is transmission connected to the gear.

[0009] Furthermore, the rotating mechanism includes a first spur gear, a second spur gear, a first bevel gear, a second bevel gear, a first rotating shaft and a second rotating shaft. The clamp seat is connected to the rotating mouth through the first rotating shaft. The center of the first spur gear is fixedly connected to the first rotating shaft. The center of the second spur gear and the center of the first bevel gear are both fixedly connected to the second rotating shaft. The second rotating shaft is arranged on the clamp tube. The first spur gear is meshed with the second spur gear. The center of the second bevel gear is fixedly connected to the head end of the inner tube. The first bevel gear is meshed with the second bevel gear.

[0010] Furthermore, the opening mechanism includes a vortex spring, an opening adjustment plate and a compression spring, the blade is hinged to the clamp seat, the vortex spring is installed between the blade and the clamp seat, the clamp seat is provided with an adjustment hole, the front side wall of the adjustment hole is close to the blade, the rear side wall of the adjustment hole is provided with a wire hole, the opening adjustment plate is slidingly connected to the adjustment hole, the compression spring is installed between the opening adjustment plate and the rear side wall of the adjustment hole, the traction wire passes through the wire hole and is fixedly connected to the opening adjustment plate, the opening adjustment plate has a U-shaped opening, when the blade exits the U-shaped opening, the blade is in an open state, when the blade enters the U-shaped opening, the blade is in a retracted state.

[0011] Furthermore, the surface of the blade has anti-slip textures.

[0012] Furthermore, it also includes a filtering device, which is installed on the straw and has a knob and a rocker.

[0013] Furthermore, five suction holes are respectively provided in two rows on the left and right sides of the head end wall of the clamp tube, and the suction holes are communicated with the suction channel.

[0014] Furthermore, the handle includes a first handle bracket, a second handle bracket and a limit nut, the first handle bracket is hinged to the second handle bracket, a sliding hole is provided at the top of the first handle bracket, and a limiting sliding groove is provided at the top of the second handle bracket, the tail end of the pull rod passes through the sliding hole and the limiting sliding groove in sequence, and the limit nut is locked and connected to the pull rod and rests against the second handle bracket.

[0015] Furthermore, the maximum rotation angle of the clamp seat is 120°.

[0016] Furthermore, there are three blades. When all three blades exit the U-shaped opening, the first blade maintains a straight front-to-back state, the second blade opens with an upward tilt, and the third blade opens with a downward tilt.

[0017] Compared with the background technology, the advantages of the present invention are: 1. The front end of the blade is an arc-shaped hook claw, which firmly grasps the deep pelvic tissue and effectively prevents slipping; after the locking mechanism unlocks the rotary wheel, the operating wheel adjusts the angle of the clamp seat at the rotating mouth through the inner tube and the rotating mechanism, thereby improving the pulling effect of the blade, without the need to swing the clamp tube, and the operation is convenient; a special suction channel is provided inside the clamp tube to attract smoke, blood and tissue fluid generated during the operation, without the need to frequently switch between the use of the suction device; the handle is used to control the opening and closing of the blade in real time through the pull rod, traction line and opening mechanism; the surgical efficiency and safety, stability and reliability are improved.

[0018] 2. The trilobate forceps was improved to integrate the functions of the trilobate forceps and the suction device, which reduced the number of instrument changes during surgery, simplified the surgical operation process, and shortened the operation time.

[0019] 3. Timely removal of smoke, blood and tissue fluid generated during the operation to keep the surgical field clear will help doctors perform surgical operations more accurately, reduce surgical risks and improve surgical safety.

[0020] 4. The improved trilobate forceps can grasp tissue more firmly, improving the stability and accuracy of surgical operations.

[0021] 5. The filtering device can effectively reduce the emission of smoke and harmful substances into the operating room, reducing the impact on the operating room environment and the health of medical staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Figure 1 The utility model is a structural schematic diagram of a non-slip rotatable curved trilobate forceps with suction function for laparoscopic surgery.

[0024] Figure 2 It is a schematic front view of the connection relationship between the blades, clamp seat, opening mechanism, rotating mechanism, clamp tube, inner tube and pull rod in the embodiment of the utility model.

[0025] Figure 3 yes Figure 2 Top view of .

[0026] Figure 4 yes Figure 2 Cross-sectional view in the AA direction.

[0027] Figure 5 yes Figure 3 Cross-sectional view along the BB direction.

[0028] Figure 6 It is a schematic diagram of the blades opened in the embodiment of the present utility model.

[0029] Figure 7 It is a schematic diagram of the angle adjustment of the clamp seat at the rotating mouth in the embodiment of the utility model.

[0030] Figure 8 This is a schematic diagram of the position of the arc-shaped hook on the blade in an embodiment of the present utility model.

[0031] Figure 9 It is a connection diagram of the first spur gear, the second spur gear, the first bevel gear and the second bevel gear in an embodiment of the present utility model.

[0032] Figure 10 It is a connection diagram of the inner tube, the rotating wheel, the pull rod, the pin shaft, the first handle bracket and the second handle bracket in the embodiment of the present invention.

[0033] Figure 11 It is a schematic diagram of the distribution of slots around the rotation axis of the rotating wheel in an embodiment of the present utility model.

[0034] Figure 12 It is a schematic diagram of the positions of the limiting nut, the pull rod and the limiting slide groove in the embodiment of the utility model.

[0035] Figure numerals: clamp base 1; adjustment hole 11; line hole 12; blade 2; arc-shaped hook 21; opening mechanism 3; scroll spring 31; opening adjustment plate 32; U-shaped mouth 321; compression spring 33; clamp tube 4; rotating mouth 41; suction channel 42; suction mouth 43; fixing plate 44; suction hole 45; rotating mechanism 5; gear 51; first spur gear 52; second spur gear 53; first bevel gear 54; second bevel gear 55; first rotating shaft 56; second rotating shaft 57; inner tube 6; ring gear 61; rotating wheel 7; slot 71; pull rod 8; traction line 9; handle 10; first handle bracket 101; second handle bracket 102; limiting nut 103; limiting slide groove 104; straw 20; filtering device 201; knob 202; rocker 203; locking mechanism 30; first support 301; second support 302; pin 303; protrusion 304. DETAILED DESCRIPTION

[0036] The embodiment of the utility model provides a three-leaf forceps for laparoscopic surgery that is non-slip, rotatable and bendable with a suction function, which overcomes the shortcomings of traditional three-leaf forceps in the background technology that do not have the anti-slip, rotation and suction functions; it achieves the technical effects of having the three-leaf forceps blades that can be opened and closed, the forceps seat that can be rotatably bent, and the forceps tube having a suction function, thereby improving the efficiency and safety of the operation, as well as the stability and reliability.

[0037] The overall idea of ​​the technical solution of the embodiment of the utility model is as follows:

[0038] During laparoscopic-assisted colorectal cancer surgery, the three-leaf forceps of the present invention enters the incision of the laparoscopic surgery, and the doctor operates the handle, which controls the opening and closing of the blades through the pull rod, traction line and opening mechanism, and is used to stretch, block and pull the tissue to obtain a better surgical field of view; the arc-shaped hook at the front end of the blade firmly grasps the deep tissue, and then the doctor operates the wheel, which adjusts the angle of the forceps seat at the rotating mouth through the inner tube and the rotating mechanism, and then locks the wheel with the locking mechanism to increase the pulling effect of the blades on the tissue; a large amount of smoke, blood and tissue fluid are generated in the process of cutting the diseased tissue, and are discharged outward through the suction channel in the forceps tube.

[0039] In order to better understand the above technical solution, the above technical solution will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0040] See Figures 1 to 12 , a preferred embodiment of the present utility model.

[0041] A non-slip, rotatable, curved trilobate forceps for laparoscopic surgery with a suction function, comprising:

[0042] Clamp base 1, blade 2, opening mechanism 3, clamp tube 4, rotating mechanism 5, inner tube 6, rotating wheel 7, pull rod 8, pulling line 9, handle 10, suction tube 20 and locking mechanism 30;

[0043] The blade 2 is connected to the clamp seat 1 through the opening mechanism 3, the head end of the clamp tube 4 is provided with a rotating port 41, the clamp seat 1 is installed in the rotating port 41, the inner tube 6 is located in the tubular cavity of the clamp tube 4, the tail end of the clamp tube 4 is provided with a rotating hole, the inner tube 6 passes through the rotating hole, the head end of the inner tube 6 is connected to the clamp seat 1 through the rotating mechanism 5, the rotation axis of the clamp seat 1 is perpendicular to the rotation axis of the inner tube 6, the tail end of the inner tube 6 is fixedly connected to the rotating wheel 7, the rotating wheel 7 is also connected to the handle 10 through the locking mechanism 30, the pull rod 8 is connected to the The lumen of the inner tube 6 is slidably connected, the head end of the pull rod 8 is connected to the opening mechanism 3 through the traction line 9, the tail end of the pull rod 8 passes through the tail end of the inner tube 6 and is connected to the handle 10, the front end of the blade 2 is an arc-shaped hook 21, and the handle 10 is also connected to the clamp tube 4 through a fixed plate 44. There is a suction channel 42 between the inner tube 6 and the clamp tube 4, and a suction port 43 is also opened at the tail end of the clamp tube 4. The suction port 43 is communicated with the suction channel 42, and the suction channel 42 is also communicated with the rotating port 41. The suction tube 20 is installed at the suction port 43.

[0044] The present invention improves the traditional three-leaf forceps. The front end of the blade 2 is an arc-shaped hook 21, which firmly grasps the deep pelvic tissue and effectively prevents slipping. After the locking mechanism 30 unlocks the rotating wheel 7, the rotating wheel 7 is operated to adjust the angle of the forceps seat 1 at the rotating mouth 41 through the inner tube 6 and the rotating mechanism 5, thereby improving the pulling effect of the blade 2. There is no need to swing the forceps tube 4, and the operation is convenient. A special suction channel 42 is provided inside the forceps tube 4 to attract smoke, blood and tissue fluid generated during the operation, and there is no need to frequently use the suction device. The handle 10 is used to control the opening and closing of the blade 2 in real time through the pull rod 8, the traction line 9 and the opening mechanism 3, thereby improving the efficiency and safety of the operation, as well as the stability and reliability.

[0045] The locking mechanism 30 includes a first support 301, a second support 302, a pin 303, and a protrusion 304. The first support 301 and the second support 302 are both fixedly mounted on the handle 10. The first support 301 defines a first through hole, and the second support 302 defines a second through hole. The pin 303 slides through the first and second through holes. The protrusion 304 is fixedly connected to the pin 303 and is located between the first support 301 and the second support 302.

[0046] The rotating wheel 7 is provided with slots 71, and a plurality of the slots 71 are evenly spaced around the rotation axis of the rotating wheel 7, and the front end of the pin 303 can be inserted into one of the slots 71. The beneficial effect of this technical solution is that when the doctor operates the protrusion 304 to move the pin 303 out of the slot 71, the locking mechanism 30 unlocks the rotating wheel 7, and the doctor can then operate the rotating wheel 7 to adjust the angle of the clamp seat 1; when the pin 303 is inserted into one of the slots 71, the locking mechanism 30 locks the rotating wheel 7, thereby fixing the angle of the clamp seat 1 at the rotation opening 41, preventing the angle of the clamp seat 1 from changing during the process of the blade 2 pulling the tissue.

[0047] The rotating mechanism 5 includes a gear 51, the head end of the inner tube 6 has a gear ring 61, the clamp seat 1 is hinged to the rotating mouth 41, the gear 51 is fixedly connected to the clamp seat 1, the rotation axis of the gear 51 is the same as the rotation axis of the clamp seat 1, and the gear ring 61 is transmission-connected to the gear 51. The beneficial effect of this technical solution is that it provides a first specific rotating mechanism 5; the rotation of the wheel 7 drives the inner tube 6 to rotate, and the inner tube 6 drives the gear 51 through the gear ring 61, and the gear 51 rotates simultaneously with the clamp seat 1. The doctor only needs to operate the wheel 7 to adjust the angle of the clamp seat 1 at the rotating mouth 41, which is convenient to operate. In order to limit the size of the gears to a suitable range, two mutually meshing gears 51 can be provided, one of which is fixedly connected to the clamp seat, and the other is transmission-connected to the gear ring.

[0048] The rotating mechanism 5 includes a first spur gear 52, a second spur gear 53, a first bevel gear 54, a second bevel gear 55, a first rotating shaft 56, and a second rotating shaft 57. The clamp seat 1 is connected to the rotating port 41 via the first rotating shaft 56. The center of the first spur gear 52 is fixedly connected to the first rotating shaft 56. The centers of the second spur gear 53 and the first bevel gear 54 are both fixedly connected to the second rotating shaft 57. The second rotating shaft 57 is arranged on the clamp tube 4. The first spur gear 52 is meshed with the second spur gear 53. The center of the second bevel gear 55 is fixedly connected to the head end of the inner tube 6. The first bevel gear 54 is meshed with the second bevel gear 55. The beneficial effect of this technical solution is that it provides a second specific rotating mechanism 5. The doctor operates the rotating wheel 7 to rotate the inner tube 6, the second bevel gear 55, the first bevel gear 54, the second spur gear 53, the first spur gear 52, and the clamp seat 1 in turn, and adjusts the angle of the clamp seat 1 in the rotating port 41. The operation is convenient.

[0049] The opening mechanism 3 includes a vortex spring 31, an opening adjustment plate 32 and a compression spring 33. The blade 2 is hinged to the clamp seat 1. The vortex spring 31 is installed between the blade 2 and the clamp seat 1. The clamp seat 1 is provided with an adjustment hole 11. The front side wall of the adjustment hole 11 is close to the blade 2. The rear side wall of the adjustment hole 11 is provided with a wire hole 12. The opening adjustment plate 32 is slidably connected to the adjustment hole 11. The compression spring 33 is installed between the opening adjustment plate 32 and the rear side wall of the adjustment hole 11. The traction line 9 passes through the wire hole 12 and is fixedly connected to the opening adjustment plate 32. The opening adjustment plate 32 has a U-shaped opening 321. When the blade 2 exits the U-shaped opening 321, the blade 2 is in an open state. When the blade 2 enters the U-shaped opening 321, the blade 2 is in a retracted state. The beneficial effect of this technical solution is that the opening and closing of the blade 2 does not affect the angle adjustment of the clamp seat 1; the doctor operates the handle 10 to move the pull rod 8 backward, and the pull rod 8 pulls the opening adjustment plate 32 backward with the help of the traction line 9, the compression spring 33 is in a compressed state, the blade 2 exits the U-shaped mouth 321 of the opening adjustment plate 32, and the spiral spring 31 resets to make the blade 2 open upward or downward; when the handle 10 releases the pull rod 8, the compression spring 33 resets, the opening adjustment plate 32 and the pull rod 8 both move forward, the U-shaped mouth 321 of the opening adjustment plate 32 wraps the blade 2, causing the blade 2 to close, and at this time the spiral spring 31 is in a spiral energy storage state.

[0050] The surface of the blade 2 has anti-slip lines. The beneficial effect of this technical solution is that the friction of the blade 2 is increased; when the pelvic tissue is pulled upward from the bottom, the blade 2 can hold the pelvic tissue more firmly.

[0051] The device also includes a filter device 201, which is mounted on the suction tube 20 and has a knob 202 and a rocker 203. This technical solution has the beneficial effect of effectively reducing the emission of smoke and harmful substances into the operating room, thereby reducing the impact on the operating room environment and the health of medical staff. The suction tube 20 is also connected to a conventional negative pressure suction device. The knob 202 and rocker 203 are both used to control a regulating valve within the filter device 201. During actual operation, the doctor selects the knob or rocker 203 to control the valve's opening and closing state and degree of opening, thereby adjusting the negative pressure and flow rate, thereby adjusting the suction force of the suction tube 20.

[0052] The head end wall of the clamp tube 4 is provided with five suction holes 45 in two rows, each of which is connected to the suction channel 42. The beneficial effect of this technical solution is that the suction holes 45 cooperate with the rotating mouth 41 to increase the speed of suctioning smoke, blood and tissue fluid.

[0053] The handle 10 includes a first handle bracket 101, a second handle bracket 102 and a limiting nut 103. The first handle bracket 101 is hinged to the second handle bracket 102. A sliding hole is provided at the top of the first handle bracket 101, and a limiting sliding groove 104 is provided at the top of the second handle bracket 102. The tail end of the pull rod 8 passes through the sliding hole and the limiting sliding groove 104 in sequence. The limiting nut 103 is locked and connected to the pull rod 8 and rests on the second handle bracket 102. The beneficial effect of this technical solution is that when the doctor holds the handle 10 with one hand, the bottom of the first handle bracket 101 is close to the bottom of the second handle bracket 102, and the pull rod 8 is moved backward with the help of the limiting nut 103, which is convenient to operate.

[0054] The maximum rotation angle of the clamp seat 1 is 120°.

[0055] There are three blades 2. When all three blades 2 exit the U-shaped opening 321, the first blade 2 maintains a straight front-to-back state, the second blade 2 opens upwardly and tilted, and the third blade 2 opens downwardly and tilted.

[0056] The main features of the non-slip, rotatable, curved tri-leaf forceps for laparoscopic surgery with suction function of the utility model are: it is a multifunctional medical instrument for colorectal surgery, which has the opening function of the tri-leaf forceps, the rotatable bending function of the forceps seat 1 and the function of the forceps tube 4 to suck blood and smoke. The traditional tri-leaf forceps are improved in design, and a structure that can be rotated 120 degrees is designed in the middle and lower parts of the tri-leaf forceps, which facilitates the better pulling effect of the blades 2 in the pelvic area by rotating the angle of the forceps seat 1.

[0057] The clamp tube 4 is made of high-strength, high-temperature resistant and corrosion-resistant materials with good mechanical properties to ensure stability and reliability during surgery. The three blades 2 of the tri-leaf forceps are designed to have arc-shaped hooks 21 at the front end to facilitate grasping deep tissues; one side of the blade 2 has anti-slip grooves to increase friction, so that when the pelvic floor tissue is pulled from the bottom to the top, the tissue can be grasped more firmly. A special suction channel 42 is provided inside the clamp tube 4 to attract smoke, blood and tissue fluid generated during surgery. The rotating mechanism 5 facilitates the traction of the blades 2 in the pelvic area by adjusting the angle of the clamp seat 1. The operating handle 10 is ergonomically designed to facilitate the doctor's grip and operation, and can accurately control the opening and closing of the clamp body and the start and stop of the suction function.

[0058] During the operation, the doctor can easily control the opening mechanism 3 to open and close the blades 2 by operating the handle 10, and at the same time start the suction function as needed to promptly deal with the smoke, blood and tissue fluid generated during the operation, keep the surgical field clear, and improve the efficiency and safety of the operation.

[0059] Although the specific implementation methods of the present invention are described above, those skilled in the art should understand that the specific embodiments described are merely illustrative and are not intended to limit the scope of the present invention. Equivalent modifications and changes made by those skilled in the art in accordance with the spirit of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A non-slip, rotatable, curved trilobate forceps for laparoscopic surgery with suction function, characterized in that: include: Clamp base, blades, opening mechanism, clamp tube, rotating mechanism, inner tube, rotating wheel, pull rod, traction line, handle, suction tube and locking mechanism; The blade is connected to the clamp seat through the opening mechanism, the head end of the clamp tube is provided with a rotating port, the clamp seat is installed in the rotating port, the inner tube is located in the tubular cavity of the clamp tube, the tail end of the clamp tube is provided with a rotating hole, the inner tube passes through the rotating hole, the head end of the inner tube is connected to the clamp seat through the rotating mechanism, the rotating axis of the clamp seat is perpendicular to the rotating axis of the inner tube, the tail end of the inner tube is fixedly connected to the rotating wheel, the rotating wheel is also connected to the handle through the locking mechanism, the pull rod It is slidingly connected to the lumen of the inner tube, the head end of the pull rod is connected to the opening mechanism through the traction line, the tail end of the pull rod passes through the tail end of the inner tube and is connected to the handle, the front end of the blade is an arc-shaped hook, and the handle is also connected to the tail end of the clamp tube through a fixed plate. There is a suction channel between the inner tube and the clamp tube, and a suction port is also provided at the tail end of the clamp tube, the suction port is communicated with the suction channel, and the suction channel is also communicated with the rotating port, and the suction straw is installed at the suction port.

2. The anti-slip rotatable curved trilobate forceps with suction function for laparoscopic surgery according to claim 1, characterized in that: The rotating mechanism includes a gear, the head end of the inner tube has a gear ring, the clamp seat is hinged to the rotating mouth, the gear is fixedly connected to the clamp seat, the rotation axis of the gear is the same as the rotation axis of the clamp seat, and the gear ring is transmission connected to the gear.

3. The anti-slip rotatable curved trilobate forceps with suction function for laparoscopic surgery according to claim 1, characterized in that: The rotating mechanism includes a first spur gear, a second spur gear, a first bevel gear, a second bevel gear, a first rotating shaft and a second rotating shaft. The clamp seat is connected to the rotating port through the first rotating shaft. The center of the first spur gear is fixedly connected to the first rotating shaft. The center of the second spur gear and the center of the first bevel gear are both fixedly connected to the second rotating shaft. The second rotating shaft is arranged on the clamp tube. The first spur gear is meshed with the second spur gear. The center of the second bevel gear is fixedly connected to the head end of the inner tube. The first bevel gear is meshed with the second bevel gear.

4. The anti-slip rotatable curved trilobate forceps with suction function for laparoscopic surgery according to claim 1, characterized in that: The opening mechanism includes a scroll spring, an opening adjustment plate and a compression spring. The blade is hinged to the clamp seat. The scroll spring is installed between the blade and the clamp seat. The clamp seat is provided with an adjustment hole. The front side wall of the adjustment hole is close to the blade. The rear side wall of the adjustment hole is provided with a wire hole. The opening adjustment plate is slidingly connected to the adjustment hole. The compression spring is installed between the opening adjustment plate and the rear side wall of the adjustment hole. The traction wire passes through the wire hole and is fixedly connected to the opening adjustment plate. The opening adjustment plate has a U-shaped opening. When the blade exits the U-shaped opening, the blade is in an open state. When the blade enters the U-shaped opening, the blade is in a retracted state.

5. The anti-slip rotatable curved trilobate forceps with suction function for laparoscopic surgery according to claim 1, characterized in that: The surface of the blade has anti-slip lines.

6. The anti-slip rotatable curved trilobate forceps with suction function for laparoscopic surgery according to claim 1, characterized in that: The invention also comprises a filtering device, which is installed on the straw and has a knob and a rocker.

7. The anti-slip rotatable curved trilobate forceps with suction function for laparoscopic surgery according to claim 1, characterized in that: The left and right rows of the head end wall of the clamp tube are each provided with five suction holes, and the suction holes are communicated with the suction channel.

8. The anti-slip rotatable curved trilobate forceps with suction function for laparoscopic surgery according to claim 1, characterized in that: The handle includes a first handle bracket, a second handle bracket and a limiting nut. The first handle bracket is hinged to the second handle bracket. A sliding hole is provided on the top of the first handle bracket, and a limiting sliding groove is provided on the top of the second handle bracket. The tail end of the pull rod passes through the sliding hole and the limiting sliding groove in sequence. The limiting nut is locked and connected to the pull rod and rests against the second handle bracket.

9. The anti-slip rotatable curved trilobate forceps with suction function for laparoscopic surgery according to claim 1, characterized in that: The maximum rotation angle of the clamp seat is 120°.

10. The anti-slip rotatable curved trilobate forceps with suction function for laparoscopic surgery according to claim 4, characterized in that: There are three blades. When the three blades exit the U-shaped opening, the first blade maintains a straight front-to-back state, the second blade is tilted upward and opened, and the third blade is tilted downward and opened.

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