Occlusion forceps

Abstract

The utility model discloses a pair of occlusal forceps, which relates to the technical field of medical instruments and comprises a forceps rod component and an outer tube, a sliding groove is arranged in the outer tube, and a forceps head occlusal groove is arranged at one end of the outer tube. The pair of the pair of the pair of the pair of the pair of the pair of the pair of the pair of the pair of the pair of the pair of the pair of the pair of the pair of the pair of the pair of the pair of the pair of the pair of the pair of the pair of the pair of the pair of the pair of the pair of the pair of the pair of the pair of the pair of the pair of the pair of the pair of the pair of the pair of the pair of the pair of the pair of the pair of the pair of the pair of the pair of the pair of the pair of the pair of the pair of In addition, due to the design that a force limiting elastic piece is additionally arranged in the handle assembly, excessive stretching or pushing of a push-pull rod is effectively limited, the situation that due to the fact that the opening and closing angle of the forceps head block is too large, occlusal cutting fails or surrounding tissue is accidentally injured is prevented, the use safety of the instrument is improved, the problem that the operation time is prolonged due to misoperation of the instrument is solved, and the operation efficiency is improved. Therefore, the operation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to a pair of biting cutting pliers. Background Art

[0002] Nasal cutting forceps are a medical device and a common surgical tool. They are primarily used in nasal surgeries, such as endoscopic nasal surgery and septum correction surgery. Similar in appearance to ordinary pliers, they feature a unique design: the jaws are curved on both sides, creating a "biting" effect. This allows surgeons to more easily grasp soft tissue and perform delicate incisions.

[0003] A Chinese patent with publication number CN206333946U discloses a biting forceps, which uses a biting blade on the biting forceps to complete the operation of removing hyperplastic tissue, thereby achieving the effect of effectively and quickly removing the hyperplastic tissue.

[0004] However, the cutting blades on bite forceps can cut into other tissues during use, resulting in insufficient precision. Furthermore, the bite forceps can be misused, causing over-clamping or excessive opening, making it impossible to cut, thus prolonging the operation. Therefore, we provide a bite forceps to address these issues. Utility Model Content

[0005] 1) Technical problems solved

[0006] The purpose of the utility model is to provide a biting cutting pliers in order to make up for the deficiencies of the prior art.

[0007] 2) Technical solution

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a biting cutting forceps, comprising:

[0009] The clamp rod assembly comprises an outer tube, a sliding groove is provided in the outer tube, and a clamp head biting groove is provided at one end of the outer tube.

[0010] The pull rod assembly includes a push-pull rod slidably connected to the sliding groove, a clamp head block is provided on one side of the push-pull rod, a hinge groove is provided on the clamp head block, and the clamp head block is hinged to the push-pull rod through the hinge groove, a support shaft is fixedly connected to the clamp head block, and the clamp head block is rotatably connected to the clamp head bite groove through the support shaft, and the push-pull rod and the clamp head bite groove form a cutting edge.

[0011] The handle assembly includes a front handle and a rear handle. The front handle is hinged to the rear handle through a pin shaft. The front handle is provided with a fixing assembly for fixing the outer tube, and the rear handle is provided with a linkage assembly for limiting the pulling and drawing of the push-pull rod.

[0012] Furthermore, a flushing pipe is installed on the outer pipe.

[0013] Furthermore, the fixing assembly includes a fixing seat fixedly connected to the front handle, a clamp rod seat is installed on the fixing seat, one end of the outer tube is inserted into the clamp rod seat, and a splicing cap is threadedly connected to the clamp rod seat.

[0014] Furthermore, the linkage assembly includes a pull seat, a guide hole is provided on the fixed seat, the pull seat is slidably connected to the guide hole, a connecting screw hole is provided on the pull seat, a connecting rod is threadedly connected to the connecting screw hole, one end of the connecting rod is fixedly connected to the pull rod seat, a limiting screw hole is provided on the pull rod seat, one end of the push-pull rod is fixedly connected to a spiral joint, and the spiral joint is threadedly connected to the limiting screw hole.

[0015] Furthermore, the linkage assembly also includes a force-limiting spring piece, a second slot is provided on the rear handle, a first slot is provided on the pull seat, and both ends of the force-limiting spring piece are respectively installed in the second slot and the first slot.

[0016] 3) Beneficial effects:

[0017] Compared with the existing technology, the bite cutting forceps has the following beneficial effects:

[0018] The utility model realizes the biting and cutting function by driving the push-pull rod to rotate relative to the biting groove of the forceps head, thereby ensuring the accuracy of the biting and cutting action, avoiding non-target tissue damage that may be caused by traditional biting and cutting forceps, reducing uncertainties in surgery, and improving the overall accuracy of the surgery. The design of adding a force-limiting spring piece to the handle assembly effectively limits excessive stretching or advancement of the push-pull rod, preventing biting failure or accidental injury to surrounding tissues caused by excessive opening and closing angles of the forceps head block, which not only enhances the safety of the instrument, but also reduces the problem of prolonged surgery time due to improper operation of the instrument, thereby improving the efficiency of the surgery. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a cross-sectional view of the utility model;

[0021] Figure 3 This is a front view of the clamp rod assembly of the utility model;

[0022] Figure 4 Schematic diagram of the structure of the new pull rod assembly of the present invention;

[0023] Figure 5 This is an exploded view of the linkage assembly in the present utility model;

[0024] Figure 6This is an exploded view of the handle assembly in the present utility model;

[0025] Figure 7 It is a three-dimensional diagram of the handle assembly in the present invention.

[0026] In the figure: 1. Clamp rod assembly; 11. Outer tube; 12. Sliding groove; 13. Clamp head bite groove; 2. Pull rod assembly; 21. Push-pull rod; 22. Clamp head block; 23. Hinge groove; 24. Support shaft; 25. Screw joint; 3. Fixing assembly; 31. Fixing seat; 32. Clamp rod seat; 33. Cap; 4. Flush pipe; 5. Linkage assembly; 51. Pull seat; 52. Pull rod seat; 53. Force-limiting spring; 54. Connecting screw hole; 55. Connecting rod; 56. Limiting screw hole; 57. First slot; 6. Handle assembly; 61. Front handle; 62. Rear handle; 63. Guide hole; 64. Second slot. DETAILED DESCRIPTION

[0027] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0028] like Figure 1-7 As shown, the utility model provides a technical solution: a biting cutting pliers, including a pliers rod assembly 1, a pull rod assembly 2 and a handle assembly 6.

[0029] The clamp rod assembly 1 includes an outer tube 11, a sliding groove 12 is opened in the outer tube 11, a clamp head biting groove 13 is opened at one end of the outer tube 11, and a flushing pipe 4 is installed on the outer tube 11. The flushing pipe 4 can be used to flush water into the sliding groove 12 to clean the inside of the sliding groove 12.

[0030] The pull rod assembly 2 includes a push-pull rod 21 that is slidably connected to the sliding groove 12. A clamp block 22 is provided on one side of the push-pull rod 21. A hinge groove 23 is provided on the clamp block 22, and the clamp block 22 is hinged to the push-pull rod 21 through the hinge groove 23. A support shaft 24 is fixedly connected to the clamp block 22, and the clamp block 22 is rotatably connected to the clamp bite groove 13 through the support shaft 24. The push-pull rod 21 and the clamp bite groove 13 form a biting edge. When the push-pull rod 21 moves inside the sliding groove 12, it will drive the support shaft 24 on the clamp block 22 to rotate in the sliding groove 12, thereby making the clamp block 22 tangent to the clamp bite groove 13 to perform a biting function.

[0031] The handle assembly 6 includes a front handle 61 and a rear handle 62. The front handle 61 is hinged to the rear handle 62 by a pin. Both the front handle 61 and the rear handle 62 are designed with rings to accommodate fingers. The front handle 61 and one end of the rear handle 62 are controlled by the hand to open and close the front handle 61 and the rear handle 62. The front handle 61 is provided with a fixing assembly 3 for fixing the outer tube 11. The fixing assembly 3 includes a fixing seat 31 fixedly connected to the front handle 61. A clamp rod seat 32 is installed on the fixing seat 31. One end of the outer tube 11 is inserted into the clamp rod seat 32. A splicing cap 33 is threadedly connected to the clamp rod seat 32. When installing the outer tube 11, the outer tube 11 needs to be inserted into the clamp rod seat 32, and the splicing cap 33 is covered on the clamp rod seat 32 to reinforce the outer tube 11 on the clamp rod seat 32.

[0032] A linkage component 5 for limiting the pulling and drawing of the push-pull rod 21 is provided on the rear handle 62. The linkage component 5 includes a pull seat 51. A guide hole 63 is provided on the fixed seat 31. The pull seat 51 is slidably connected to the guide hole 63. A connecting screw hole 54 is provided on the pull seat 51. A connecting rod 55 is threadedly connected to the connecting screw hole 54. One end of the connecting rod 55 is fixedly connected to the pull rod seat 52. A limiting screw hole 56 is provided on the pull rod seat 52. One end of the push-pull rod 21 is fixedly connected to a spiral joint 25, and the spiral joint 25 is threadedly connected to the limiting screw hole 56.

[0033] When installing the push-pull rod 21, it is necessary to screw the spiral joint 25 into the limiting screw hole 56, and then screw the connecting rod 55 on the pull rod seat 52 into the connecting screw hole 54. The pull seat 51 slides in the guide hole 63 to control the movement of the push-pull rod 21.

[0034] The linkage assembly 5 also includes a force-limiting spring piece 53, a second slot 64 is provided on the rear handle 62, and a first slot 57 is provided on the pull seat 51. The two ends of the force-limiting spring piece 53 are respectively installed in the second slot 64 and the first slot 57. The force-limiting spring piece 53 is a wavy twisted and bent shape and has a certain elasticity, which limits the over-pushing or over-pulling of the push-pull rod 21 and prevents the clamp head block 22 from opening and closing too much and losing precision.

[0035] Working Principle: The push-pull rod 21 is used to drive the jaw block 22 to rotate relative to the jaw groove 13. The rear handle 62 drives the linkage assembly 5 to telescopically move along the inner wall of the sliding groove 12 in the outer tube 11, thereby controlling the position of the jaw block 22 on the jaw groove 13. During use, the jaw block 22 and the jaw groove 13 cooperate to perform cutting, facilitating positioning while preventing cutting other tissues and improving accuracy. The force-limiting spring 53 limits the push-pull rod 21 from being pulled or pushed too far, preventing the jaw block 22 from opening and closing too far and losing accuracy, thereby improving surgical safety.

[0036] It should be noted that, in this document, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate positions or location relationships based on the positions or location relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention; the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "fixed", "installed", "connected", and "connected" should be understood in a broad sense. For example, "installed" can mean a fixed connection, a detachable connection, or an integral connection; "connected" can mean a mechanical connection or an electrical connection; "connected" can mean a direct connection, an indirect connection through an intermediate medium, or the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cutting pliers, characterized in that: include: The clamp rod assembly (1) comprises an outer tube (11), a sliding groove (12) is provided in the outer tube (11), and a clamp head biting groove (13) is provided at one end of the outer tube (11); The pull rod assembly (2) comprises a push-pull rod (21) slidably connected to the sliding groove (12); a clamp head block (22) is provided on one side of the push-pull rod (21); a hinge groove (23) is provided on the clamp head block (22); the clamp head block (22) is hinged to the push-pull rod (21) through the hinge groove (23); a support shaft (24) is fixedly connected to the clamp head block (22); the clamp head block (22) is rotatably connected to the clamp head bite groove (13) through the support shaft (24); the push-pull rod (21) and the clamp head bite groove (13) form a biting cutting edge; The handle assembly (6) comprises a front handle (61) and a rear handle (62). The front handle (61) is hinged to the rear handle (62) via a pin. The front handle (61) is provided with a fixing assembly (3) for fixing the outer tube (11). The rear handle (62) is provided with a linkage assembly (5) for limiting the pulling and drawing of the push-pull rod (21).

2. The cutting pliers according to claim 1, characterized in that: A flushing pipe (4) is installed on the outer pipe (11).

3. The cutting pliers according to claim 1, characterized in that: The fixing assembly (3) comprises a fixing seat (31) fixedly connected to the front handle (61), a clamp rod seat (32) is installed on the fixing seat (31), one end of the outer tube (11) is inserted into the clamp rod seat (32), and a cap (33) is threadedly connected to the clamp rod seat (32).

4. The cutting pliers according to claim 3, characterized in that: The linkage assembly (5) includes a pull seat (51), a guide hole (63) is provided on the fixed seat (31), the pull seat (51) is slidably connected to the guide hole (63), a connecting screw hole (54) is provided on the pull seat (51), a connecting rod (55) is threadedly connected to the connecting screw hole (54), one end of the connecting rod (55) is fixedly connected to the pull rod seat (52), a limiting screw hole (56) is provided on the pull rod seat (52), one end of the push-pull rod (21) is fixedly connected to the spiral joint (25), and the spiral joint (25) is threadedly connected to the limiting screw hole (56).

5. The cutting pliers according to claim 4, characterized in that: The linkage assembly (5) further comprises a force-limiting spring piece (53), a second slot (64) is provided on the rear handle (62), a first slot (57) is provided on the pull seat (51), and two ends of the force-limiting spring piece (53) are respectively installed in the second slot (64) and the first slot (57).

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