Laparoscopic myoma grasping forceps

Abstract

The invention provides a pair of myoma grasping forceps under a laparoscope, which belongs to the technical field of air compressor equipment and comprises a fixed handle, a clamping assembly, a self-locking assembly and a steering assembly, according to the scheme, an arc-shaped rack is installed on the inner side of the movable handle, the arc-shaped rack is inserted into an installation cavity formed in the fixed handle in a penetrating mode, a ratchet wheel is rotatably installed in the installation cavity, the arc-shaped rack is connected with the ratchet wheel in a meshed mode, and a round rod is rotatably installed at the position, located at the bottom of the ratchet wheel, in the installation cavity; when the movable handle gets close to the fixed handle, the arc-shaped rack moves in the mounting cavity and drives the ratchet wheel to rotate, at the moment, the locking insertion teeth swing in the rotating direction of the ratchet wheel, and the ratchet wheel is locked. And after the ratchet wheel stops rotating, the ratchet wheel is locked by the locking insertion teeth, so that the movable handle is prevented from moving to keep the clamp in a clamping state, and an operator can relax hands temporarily to relieve aching pain.

Description

Technical Field

[0001] The invention belongs to the technical field of air compressor equipment, and in particular relates to a laparoscopic myoma grasping forceps. Background Art

[0002] Laparoscopic surgery is a surgery performed using a laparoscope and related instruments. The laparoscope lens is inserted into the abdominal cavity. The doctor analyzes and judges the patient's condition through images of the patient's organs from different angles displayed on the monitor screen, and uses special laparoscopic instruments to perform the surgery. In laparoscopic surgery, laparoscopic grasping forceps are needed to grasp the tissue in the body, and then the tissue is operated on. Laparoscopic grasping forceps are a commonly used tool for laparoscopic surgery, which is used to grasp and separate tissues near the surgical site during surgery. Ordinary laparoscopic grasping forceps have two metal clamps, which are very easy to slip when grasping, and can easily damage blood vessels and nerves near the tissue. The current generated by the electric knife or electrocoagulator during surgery can easily damage the nerves. The long-term compression of the grasping forceps on the tissue will cause irreversible damage to the blood vessels, affecting the patient's postoperative healing and recovery. Among them, the laparoscopic grasping forceps with application number "CN202022298033.2" adopts four forceps heads, and the rubber layer and grooves on the forceps heads increase friction, make tissue grasping more stable, reduce pressure on blood vessels and nerves in the tissue, and can protect nerves from electric current to prevent electric current from electric knives, etc. from causing damage to nerves. At the same time, the suction device can be connected to conveniently suck away the liquid in the surgical site during surgery through the switch on the handle, thereby ensuring the surgical field of view. However, there is still some improvement in the use of the laparoscopic grasping forceps: after the movable handle drives the forceps head to grasp, the hand needs to be continuously clenched to ensure grasping, which makes the doctor's hand prone to soreness when using the grasping forceps. At the same time, the grasping forceps cannot adjust the angle, and it is easy to damage the surrounding tissue of the target tissue to be grasped in parts with smaller space in the body or parts with dense nerve distribution. Summary of the invention

[0003] The purpose of the present invention is to provide a laparoscopic myoma grasping forceps, aiming to solve the problem in the prior art that after the movable handle drives the forceps head to grasp, the hand needs to be continuously clenched to ensure grasping, which makes the doctor's hand prone to soreness when using the grasping forceps. At the same time, the grasping forceps cannot adjust the angle, and it is easy to damage the surrounding tissues of the target tissue to be grasped in parts with smaller space or dense nerve distribution in the body.

[0004] To achieve the above-mentioned object, the present invention provides the following technical solutions: a laparoscopic myoma grasping forceps, comprising a fixed handle, a clamping assembly, a self-locking assembly and a steering assembly;

[0005] Wherein: a grip ring is installed on the surface of the fixed handle, and a mounting seat is connected to the top of the fixed handle;

[0006] The clamping assembly includes a movable handle hinged on the top of the fixed handle, a fixed sleeve is installed inside the mounting seat, a movable rod is slidably installed inside the fixed sleeve, the movable handle is movably connected to one end of the movable rod, a guide sleeve is installed at one end of the fixed sleeve, an outer tube is installed at one end of the guide sleeve, a connecting rod is inserted and connected inside the outer tube, one end of the connecting rod is connected to the movable rod, a supporting sleeve is provided at the front end of the outer tube, a movable groove is opened on the surface of the supporting sleeve, a pin rod is installed inside the movable groove, two clamps are symmetrically hingedly installed on the surface of the pin rod, the clamps are movable inside the movable groove, a connecting rod is slidably installed inside the supporting sleeve, the other end of the connecting rod is connected to the connecting rod, one end of the connecting rod is hinged to two pull rods, and the two pull rods are respectively hingedly connected to the clamps at their respective ends;

[0007] The self-locking assembly includes an arc-shaped rack fixedly mounted on the inner side of the movable handle, a mounting cavity is provided inside the fixed handle, a ratchet is rotatably mounted inside the mounting cavity, the arc-shaped rack is inserted through the top of the mounting cavity and meshed with the ratchet, a round rod is rotatably mounted inside the mounting cavity, a locking tooth is installed on the surface of the round rod, and the locking tooth is inserted inside the tooth groove of the ratchet;

[0008] The steering assembly comprises a mounting sleeve mounted on the surface of the outer tube, an adjusting knob is rotatably mounted on the bottom of the mounting sleeve, one end of the adjusting knob is inserted into the inner wall of the outer tube and fixedly mounted with a gear, a steering swing rod is arranged on both sides of the inner part of the outer tube, the supporting sleeve is rotatably mounted on the inner wall of the front end of the outer tube, both sides of one end of the supporting sleeve are connected with connecting plates, a hook is mounted on one end of the steering swing rod, the hook is hung inside the connecting plate, a spur rack is mounted on the other end of the steering swing rod, and the gear is arranged in the middle of two spur racks and meshedly connected;

[0009] As a preferred embodiment of the present invention, an insert block is installed at the top of the movable handle, a plug-in slot is penetrated through one end of the movable rod, the insert block is movably inserted into the plug-in slot, a spherical hole is penetrated through the other end of the movable rod, a connecting ball head is installed at one end of the connecting rod, and the connecting ball head is movably installed inside the spherical hole.

[0010] As a preferred embodiment of the present invention, limiting grooves are provided on both sides of the inner wall of the outer tube, and the two steering rocker arms slide inside the limiting grooves on both sides respectively.

[0011] As a preferred embodiment of the present invention, a torsion spring is sleeved on the surface of the round rod, one end of the torsion spring contacts the inner wall of the installation cavity, and one end of the round rod passes through the installation cavity and extends to the outside of the fixed handle.

[0012] As a preferred embodiment of the present invention, an unlocking buckle is fixedly mounted on the surface of the round rod located outside the fixed handle, and the surface of the unlocking buckle is provided with anti-slip grooves.

[0013] As a preferred embodiment of the present invention, one end of the arc-shaped rack is fixedly connected to an anti-slip block.

[0014] As a preferred embodiment of the present invention, a reserved hole is provided at the bottom of the fixing sleeve corresponding to the plug-in slot, and the sliding displacement of the movable rod inside the fixing sleeve is greater than the clamping stroke of the clamp.

[0015] As a preferred embodiment of the present invention, a leaf spring is fixedly connected between the fixed handle and the movable handle.

[0016] As a preferred embodiment of the present invention, an anti-slip lever is fixedly mounted on the surface of the movable handle.

[0017] As a preferred embodiment of the present invention, the fixed handle, movable handle, outer tube, support sleeve and clamp are all made of titanium alloy.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1) An arc-shaped rack is installed on the inner side of the movable handle, and the arc-shaped rack is inserted into the installation cavity opened inside the fixed handle. A ratchet is rotatably installed inside the installation cavity, and the arc-shaped rack is meshed with the ratchet. A round rod is rotatably installed inside the installation cavity at the bottom of the ratchet, and a locking tooth is fixedly installed on the surface of the round rod. The locking tooth is inserted into the tooth groove on the surface of the ratchet, so that the ratchet is locked. When the movable handle approaches the fixed handle, the arc-shaped rack moves inside the installation cavity and drives the ratchet to rotate. At this time, the locking tooth swings in the direction of rotation of the ratchet. After the ratchet stops rotating, the locking tooth locks the ratchet. After the myoma is grasped, the movable handle is pushed to reset by the shrapnel spring. At this time, the arc-shaped rack on the surface of the movable handle is limited by the locking tooth inside the ratchet, ensuring that the clamp driven by the movable handle will not open automatically. The operator can relax his hand for a short time to relieve pain.

[0020] 2) Through the provided clamping assembly, when it is necessary to clamp the fibroid, the fixed handle is held and the movable handle is pressed, and the movable handle drives the movable rod inside the fixed sleeve to move, and the movable rod moves stably inside the fixed sleeve under the limit of the guide sleeve, an outer tube is installed at one end of the guide sleeve, and a connecting rod is inserted and connected inside the outer tube, and the connecting rod moves with the movement, and a support sleeve is installed at the front end of the outer tube, and a connecting rod is slidably installed inside the support sleeve, and one end of the connecting rod is connected to the connecting rod, and a movable groove is opened on the surface of the support sleeve, and a clamp is symmetrically installed inside the movable groove through a pin rod, and a pull rod hinged at one end of the connecting rod is hingedly connected to the clamp, and when the movable rod drives the connecting rod to move through the connecting rod, the connecting rod drives the clamp to open and close the movable groove through the pull rod, so that the fibroid is clamped by the clamp;

[0021] 3) Through the provided steering assembly, a mounting sleeve is installed on the surface of the outer tube, and an adjusting knob is rotatably installed on the bottom of the mounting sleeve. One end of the adjusting knob is inserted into the inner wall of the outer tube and a gear is fixedly installed. Limiting grooves are provided on both sides of the inner wall of the outer tube, and the steering rocker arm is slidably installed inside the limiting grooves. A connecting piece is connected to one end of the support sleeve, and the steering rocker arm is hung inside the connecting piece through a hook at one end. A spur rack is installed at the other end of the steering rocker arm, and the gear is meshed and connected with the spur racks at the other ends of the two steering rocker arms. When the adjusting knob is rotated, the two spur racks are driven to move in the opposite direction, thereby driving the support sleeve to rotate and adjust at one end of the outer tube through the steering rocker arm, which is convenient for driving the clamp to follow the adjustment angle, so that when grasping the fibroids in a small space part or a part with dense nerve distribution in the body, damage to the surrounding tissues due to limited grasping angle is avoided, thereby improving the grasping flexibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 It is a side view structural schematic diagram of the present invention;

[0025] Figure 3 It is a schematic diagram of the split structure of the present invention;

[0026] Figure 4 It is a schematic diagram of the structure of the clamping assembly of the present invention;

[0027] Figure 5 It is a schematic diagram of the structure of the steering assembly of the present invention;

[0028] Figure 6 It is a schematic diagram of the structure of the self-locking component of the present invention.

[0029] In the figure: 1, fixed handle; 2, grip ring; 3, mounting seat; 4, clamping assembly; 41, movable handle; 42, fixed sleeve; 43, movable rod; 44, guide sleeve; 45, outer tube; 46, connecting rod; 47, supporting sleeve; 48, movable groove; 481, pin rod; 482, clamp; 483, connecting rod; 484, pull rod; 5, self-locking assembly; 51, arc-shaped rack; 52, mounting cavity; 53, ratchet; 54, round rod; 5 5. Locking pinion; 6. Steering assembly; 61. Mounting sleeve; 62. Adjusting knob; 63. Gear; 64. Steering sway bar; 65. Connecting plate; 66. Hook; 67. Spur rack; 7. Insert block; 8. Insert slot; 9. Spherical hole; 10. Connecting ball head; 11. Limiting slot; 12. Torsion spring; 13. Unlocking lever; 14. Anti-skid pattern; 15. Anti-drop block; 16. Reserved hole; 17. Shrapnel spring; 18. Anti-skid lever. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] See also Figure 1-6 The present invention provides the following technical solution: a laparoscopic myoma grasping forceps, comprising a fixed handle 1, a clamping assembly 4, a self-locking assembly 5 and a steering assembly 6; a grip ring 2 is installed on the surface of the fixed handle 1, and a mounting seat 3 is connected to the top of the fixed handle 1;

[0032] See also Figure 1 , Figure 4 In this embodiment, the clamping assembly 4 includes a movable handle 41 hinged on the top of the fixed handle 1, a fixed sleeve 42 is installed inside the mounting seat 3, a movable rod 43 is slidably installed inside the fixed sleeve 42, the movable handle 41 is movably connected to one end of the movable rod 43, a guide sleeve 44 is installed at one end of the fixed sleeve 42, an outer tube 45 is installed at one end of the guide sleeve 44, a connecting rod 46 is inserted and connected inside the outer tube 45, one end of the connecting rod 46 is connected to the movable rod 43, and a support is provided at the front end of the outer tube 45. A support sleeve 47 is provided with a movable groove 48 on its surface, a pin rod 481 is installed inside the movable groove 48, two clamps 482 are symmetrically hingedly installed on the surface of the pin rod 481, the clamps 482 move inside the movable groove 48, a connecting rod 483 is slidably installed inside the support sleeve 47, the other end of the connecting rod 46 is connected to the connecting rod 483, one end of the connecting rod 483 is hinged to two pull rods 484, and the two pull rods 484 are hingedly connected to the clamps 482 at their respective ends.

[0033] Specifically, when it is necessary to clamp the fibroid, the fixed handle 1 is held and the movable handle 41 is pressed, and the movable handle 41 drives the movable rod 43 inside the fixed sleeve 42 to move, and the movable rod 43 moves stably inside the fixed sleeve 42 under the limit of the guide sleeve 44, and an outer tube 45 is installed at one end of the guide sleeve 44, and a connecting rod 46 is inserted and connected inside the outer tube 45, and the connecting rod 46 moves with the movable rod 43, and a support sleeve 47 is installed at the front end of the outer tube 45, and a linkage is slidably installed inside the support sleeve 47. Rod 483, one end of the connecting rod 483 is connected to the connecting rod 46, a movable groove 48 is opened on the surface of the support sleeve 47, and a clamp 482 is symmetrically installed inside the movable groove 48 through a pin rod 481. A pull rod 484 hinged at one end of the connecting rod 483 is hingedly connected to the clamp 482. When the movable rod 43 drives the connecting rod 483 to move through the connecting rod 46, the connecting rod 483 drives the clamp 482 to open and close the movable groove 48 through the pull rod 484, so that the myoma is clamped by the clamp 482.

[0034] See also Figure 1 , Figure 6 In this embodiment: the self-locking component 5 includes an arc-shaped rack 51 fixedly installed on the inner side of the movable handle 41, a mounting cavity 52 is opened inside the fixed handle 1, a ratchet 53 is rotatably installed inside the mounting cavity 52, the arc-shaped rack 51 is inserted through the top of the mounting cavity 52 and meshed with the ratchet 53, a round rod 54 is rotatably installed inside the mounting cavity 52, a locking tooth 55 is installed on the surface of the round rod 54, and the locking tooth 55 is inserted into the tooth groove of the ratchet 53.

[0035] Specifically, an arc-shaped rack 51 is installed on the inner side of the movable handle 41, and the arc-shaped rack 51 is inserted into the installation cavity 52 opened in the fixed handle 1. A ratchet 53 is rotatably installed in the installation cavity 52. ​​The arc-shaped rack 51 is meshed and connected with the ratchet 53. A round rod 54 is rotatably installed at the bottom of the ratchet 53 in the installation cavity 52. ​​A locking tooth 55 is fixedly installed on the surface of the round rod 54. The locking tooth 55 is inserted into the tooth groove on the surface of the ratchet 53, so that the ratchet 53 is locked. When the movable handle 41 is moved toward the fixed handle 1, the ratchet 53 is locked. When the handle 1 is close, the arc-shaped rack 51 moves inside the installation cavity 52 and drives the ratchet 53 to rotate. At this time, the locking tooth 55 swings in the direction of rotation of the ratchet 53. After the ratchet 53 stops rotating, the locking tooth 55 locks the ratchet 53. After the myoma is grasped, the movable handle 41 is pushed to reset by the spring 17. At this time, the arc-shaped rack 51 on the surface of the movable handle 41 is limited by the locking tooth 55 inside the ratchet 53, ensuring that the clamp 482 driven by the movable handle 41 will not open automatically. The operator can relax his hands for a short time to relieve pain.

[0036] See also Figure 1 , Figure 5In this embodiment: the steering assembly 6 includes a mounting sleeve 61 mounted on the surface of the outer tube 45, an adjusting knob 62 is rotatably mounted on the bottom of the mounting sleeve 61, one end of the adjusting knob 62 is inserted into the inner wall of the outer tube 45 and fixedly mounted with a gear 63, steering swing rods 64 are provided on both sides of the inner part of the outer tube 45, a support sleeve 47 is rotatably mounted on the inner wall of the front end of the outer tube 45, and connecting pieces 65 are connected on both sides of one end of the support sleeve 47, a hook 66 is installed at one end of the steering swing rod 64, the hook 66 is hung inside the connecting piece 65, a spur rack 67 is installed at the other end of the steering swing rod 64, the gear 63 is arranged in the middle of the two spur racks 67 and meshedly connected, and limiting grooves 11 are provided on both sides of the inner wall of the outer tube 45, and the two steering swing rods 64 slide in the limiting grooves 11 on both sides respectively.

[0037] Specifically, a mounting sleeve 61 is installed on the surface of the outer tube 45, and an adjusting knob 62 is rotatably installed at the bottom of the mounting sleeve 61. One end of the adjusting knob 62 is inserted into the inner wall of the outer tube 45 and fixedly installed with a gear 63. Limiting grooves 11 are provided on both sides of the inner wall of the outer tube 45. A steering swing rod 64 is slidably installed inside the limiting groove 11. One end of the support sleeve 47 is connected to a connecting piece 65. The steering swing rod 64 is hung inside the connecting piece 65 through a hook 66 at one end. A straight The rack 67 and the gear 63 are meshed and connected with the spur racks 67 at the other end of the two steering swing rods 64. When the adjustment knob 62 is turned, the two spur racks 67 are driven to move in the opposite direction, thereby driving the support sleeve 47 to rotate and adjust at one end of the outer tube 45 through the steering swing rod 64, so as to drive the clamp 482 to follow the adjustment angle, so that when grasping the fibroid in a small space part or a part with dense nerve distribution in the body, the clamp 482 is prevented from causing damage to the surrounding tissue due to the limited grasping angle, thereby improving the grasping flexibility;

[0038] See also Figure 3 , Figure 4 In this embodiment, an insert block 7 is installed at the top of the movable handle 41, a plug groove 8 is penetrated at one end of the movable rod 43, the insert block 7 is movably inserted into the plug groove 8, a spherical hole 9 is penetrated at the other end of the movable rod 43, and a connecting ball head 10 is installed at one end of the connecting rod 46, and the connecting ball head 10 is movably installed inside the spherical hole 9.

[0039] Specifically, an insert block 7 is installed at the top of the movable handle 41, and an insert groove 8 is opened at one end of the movable rod 43. The insert block 7 is movably inserted into the insert groove 8, so that the movable handle 41 can drive the movable rod 43 to move. A spherical hole 9 is opened at the other end of the movable rod 43, and a connecting ball head 10 is installed at one end of the connecting rod 46. The connecting rod 46 is movably installed in the spherical hole 9 through the connecting ball head 10, so as to facilitate the transmission connection between the movable rod 43 and the connecting rod 46.

[0040] See also Figure 1 , Figure 6 In this example: a torsion spring 12 is also sleeved on the surface of the round rod 54, one end of the torsion spring 12 contacts the inner wall of the installation cavity 52, one end of the round rod 54 passes through the installation cavity 52 and extends to the outside of the fixed handle 1, and an unlocking buckle 13 is fixedly installed on the surface of the round rod 54 located outside the fixed handle 1, and an anti-slip pattern 14 is provided on the surface of the unlocking buckle 13.

[0041] Specifically, a torsion spring 12 is sleeved on the surface of the round rod 54. When the round rod 54 rotates, the torsion spring 12 is forced to push the locking tooth 55 to limit the ratchet 53. One end of the round rod 54 extends to the outside of the fixed handle 1 and is installed with an unlocking button 13. When the unlocking button 13 is pressed, the round rod 54 drives the locking tooth 55 to move out of the tooth groove on the surface of the ratchet 53, making it easy to open the clamp 482. The anti-slip pattern 14 on the surface of the unlocking button 13 can increase the friction with the hand, making it easier to push.

[0042] See also Figure 6 In this example, one end of the arc-shaped rack 51 is fixedly connected to an anti-slip stopper 15.

[0043] Specifically, the anti-dropout block 15 connected to one end of the arc-shaped rack 51 plays a limiting role to prevent the arc-shaped rack 51 from being dropped out of the installation cavity 52 .

[0044] See also Figure 3 In this example, a reserved hole 16 is opened at the bottom of the fixing sleeve 42 corresponding to the plug-in slot 8, and the sliding displacement of the movable rod 43 inside the fixing sleeve 42 is greater than the clamping stroke of the clamp 482.

[0045] Specifically, the reserved hole 16 opened at the bottom of the fixing sleeve 42 corresponding to the plug-in slot 8 facilitates the insertion of the positioning block 7 into the plug-in slot 8 to provide installation space, and the sliding displacement of the movable rod 43 inside the fixing sleeve 42 is greater than the clamping stroke of the clamp 482, thereby ensuring the stability of the clamping and avoiding the occurrence of clamping voids that affect the clamping.

[0046] See also Figure 1 , Figure 2 In this example, a leaf spring 17 is fixedly connected between the fixed handle 1 and the movable handle 41;

[0047] Specifically, a leaf spring 17 is connected between the fixed handle 1 and the movable handle 41 , and the leaf spring 17 is convenient for pushing the movable handle 41 backward and returning to its original position after the clamping is completed.

[0048] See also Figure 1 , Figure 3 In this embodiment, an anti-slip lever 18 is fixedly mounted on the surface of the movable handle 41 .

[0049] Specifically: the anti-slip lever 18 installed on the surface of the movable handle 41 can prevent the movable handle 41 from sliding out of the hand when clamping.

[0050] See also Figure 3 In this embodiment, the fixed handle 1, the movable handle 41, the outer tube 45, the support sleeve 47 and the clamp 482 are all made of titanium alloy.

[0051] Specifically: the fixed handle 1, the movable handle 41, the outer tube 45, the support sleeve 47 and the clamp 482 are all made of titanium alloy material. Titanium alloy has the advantages of light structure while ensuring structural strength. It also has good corrosion resistance and good compatibility with human tissue, and has been widely used in the medical field.

[0052] When in use, an arc-shaped rack 51 is installed on the inner side of the movable handle 41, and the arc-shaped rack 51 is inserted into the installation cavity 52 opened inside the fixed handle 1. A ratchet 53 is rotatably installed inside the installation cavity 52, and the arc-shaped rack 51 is meshed and connected with the ratchet 53. A round rod 54 is rotatably installed at the bottom of the ratchet 53 inside the installation cavity 52, and a locking tooth 55 is fixedly installed on the surface of the round rod 54. The locking tooth 55 is inserted into the tooth groove on the surface of the ratchet 53, so that the ratchet 53 is locked. When the handle 41 approaches the fixed handle 1, the arc-shaped rack 51 moves inside the installation cavity 52 and drives the ratchet 53 to rotate. At this time, the locking tooth 55 swings in the direction of rotation of the ratchet 53. After the ratchet 53 stops rotating, the locking tooth 55 locks the ratchet 53. After the myoma is grasped, the movable handle 41 is pushed to reset by the spring 17. At this time, the arc-shaped rack 51 on the surface of the movable handle 41 is limited by the locking tooth 55 inside the ratchet 53, ensuring that the clamp 482 driven by the movable handle 41 will not open automatically. The operator The hand can be relaxed for a short time to relieve pain. A mounting sleeve 61 is mounted on the surface of the outer tube 45. An adjusting knob 62 is rotatably mounted on the bottom of the mounting sleeve 61. One end of the adjusting knob 62 is inserted into the inner wall of the outer tube 45 and fixedly mounted with a gear 63. Limiting grooves 11 are provided on both sides of the inner wall of the outer tube 45. A steering rocker 64 is slidably mounted inside the limiting groove 11. A connecting piece 65 is connected to one end of the support sleeve 47. The steering rocker 64 is hung inside the connecting piece 65 through a hook 66 at one end. The other end of the steering rocker 64 is connected to the inner wall of the outer tube 45. A spur rack 67 is installed at one end, and the gear 63 is meshed with the spur rack 67 at the other end of the two steering rocker bars 64. When the adjusting knob 62 is rotated, the two spur racks 67 are driven to move in the opposite direction, thereby driving the support sleeve 47 to rotate and adjust at one end of the outer tube 45 through the steering rocker bar 64, so as to drive the clamp 482 to follow the adjustment angle, so that when grabbing the fibroid in a small space part or a part with dense nerve distribution in the body, the clamp 482 can be prevented from causing damage to the surrounding tissue due to the limited grabbing angle, thereby improving the grabbing flexibility.

[0053] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A laparoscopic myoma grasping forceps, characterized in that: include: A fixed handle (1), a grip ring (2) is mounted on the surface of the fixed handle (1), and a mounting seat (3) is connected to the top of the fixed handle (1); The clamping assembly (4) comprises a movable handle (41) hinged on the top of the fixed handle (1), a fixed sleeve (42) is installed inside the mounting seat (3), a movable rod (43) is slidably installed inside the fixed sleeve (42), the movable handle (41) is movably connected to one end of the movable rod (43), a guide sleeve (44) is installed at one end of the fixed sleeve (42), an outer tube (45) is installed at one end of the guide sleeve (44), a connecting rod (46) is inserted and connected inside the outer tube (45), one end of the connecting rod (46) is connected to the movable rod (43), and the front end of the outer tube (45) is provided with a A support sleeve (47) is provided on the surface of the support sleeve (47) with a movable groove (48), a pin rod (481) is installed inside the movable groove (48), two clamps (482) are symmetrically hingedly installed on the surface of the pin rod (481), the clamps (482) are movable inside the movable groove (48), a connecting rod (483) is slidably installed inside the support sleeve (47), the other end of the connecting rod (46) is connected to the connecting rod (483), one end of the connecting rod (483) is hinged with two pull rods (484), and the two pull rods (484) are respectively hingedly connected to the clamps (482) at one end; A self-locking component (5), the self-locking component (5) comprising an arc-shaped rack (51) fixedly mounted on the inner side of a movable handle (41); a mounting cavity (52) is provided inside the fixed handle (1); a ratchet (53) is rotatably mounted inside the mounting cavity (52); the arc-shaped rack (51) is inserted through the top of the mounting cavity (52) and meshedly connected with the ratchet (53); a round rod (54) is rotatably mounted inside the mounting cavity (52); a locking tooth (55) is mounted on the surface of the round rod (54); the locking tooth (55) is inserted through the tooth groove of the ratchet (53); A steering assembly (6), the steering assembly (6) comprising a mounting sleeve (61) mounted on the surface of an outer tube (45), an adjusting knob (62) being rotatably mounted on the bottom of the mounting sleeve (61), one end of the adjusting knob (62) being inserted into the inner wall of the outer tube (45) and fixedly mounted with a gear (63), a steering rocker (64) being arranged on both sides of the interior of the outer tube (45), the support sleeve (47) being rotatably mounted on the front inner wall of the outer tube (45), one end of the support sleeve (47) being connected with connecting pieces (65) on both sides, one end of the steering rocker (64) being mounted with a hook (66), the hook (66) being hooked inside the connecting piece (65), the other end of the steering rocker (64) being mounted with a spur rack (67), the gear (63) being arranged in the middle of two spur racks (67) and being meshedly connected.

2. The laparoscopic myoma grasping forceps according to claim 1, characterized in that: An insert block (7) is installed at the top of the movable handle (41); a plug slot (8) is provided through one end of the movable rod (43); the insert block (7) is movably inserted into the plug slot (8); a spherical hole (9) is provided through the other end of the movable rod (43); a connecting ball head (10) is installed at one end of the connecting rod (46); and the connecting ball head (10) is movably installed inside the spherical hole (9).

3. The laparoscopic myoma grasping forceps according to claim 1, characterized in that: Limiting grooves (11) are provided on both sides of the inner wall of the outer tube (45), and the two steering rocker arms (64) slide inside the limiting grooves (11) on both sides respectively.

4. The laparoscopic myoma grasping forceps according to claim 1, characterized in that: A torsion spring (12) is also sleeved on the surface of the round rod (54), one end of the torsion spring (12) contacts the inner wall of the installation cavity (52), and one end of the round rod (54) passes through the installation cavity (52) and extends to the outside of the fixed handle (1).

5. The laparoscopic myoma grasping forceps according to claim 1, characterized in that: An unlocking button (13) is fixedly mounted on the surface of the round rod (54) located outside the fixed handle (1), and an anti-slip pattern (14) is provided on the surface of the unlocking button (13).

6. The laparoscopic myoma grasping forceps according to claim 1, characterized in that: One end of the arc-shaped rack (51) is fixedly connected to an anti-slip stopper (15).

7. The laparoscopic myoma grasping forceps according to claim 1, characterized in that: A reserved hole (16) is provided at the bottom of the fixing sleeve (42) corresponding to the insertion groove (8), and the sliding displacement of the movable rod (43) inside the fixing sleeve (42) is greater than the clamping stroke of the clamp (482).

8. The laparoscopic myoma grasping forceps according to claim 1, characterized in that: A leaf spring (17) is fixedly connected between the fixed handle (1) and the movable handle (41).

9. The laparoscopic myoma grasping forceps according to claim 1, characterized in that: An anti-slip lever (18) is fixedly mounted on the surface of the movable handle (41).

10. The laparoscopic myoma grasping forceps according to claim 1, characterized in that: The fixed handle (1), the movable handle (41), the outer tube (45), the support sleeve (47) and the clamp (482) are all made of titanium alloy.

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