Bone rongeur with rongeur heads easy to engage

Abstract

The utility model discloses a rongeur with easily-occluded tong heads, and aims to provide the rongeur with the easily-occluded tong heads, which is flexible to use and improves the operation efficiency. The front gun handle is rotatably connected with the rear gun handle, the rear gun handle is provided with a fixing rod, one end of the fixing rod is connected with the rear gun handle, the other end of the fixing rod is connected with a fixed tong head, a movable through hole is formed in the fixing rod, a push rod is movably connected in the movable through hole, and a movable tong head is slidably connected to the fixed tong head. One end of the push rod is opposite to the end of the front gun handle, the fixed tong head is connected with a tong top block, the other end of the push rod is opposite to one end of the tong top block, the fixed rod is connected with an adjusting structure, the tong top block is rotationally connected with the fixed tong head through the adjusting structure, the tong top block is provided with a receding groove, and the receding groove and the movable tong head are arranged oppositely. The utility model has the beneficial effects that the surgical forceps can enter an occlusion point for occlusion more easily, are flexible to use and improve the surgical efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to a pair of bone rongeurs with easy-to-bite pliers heads. Background Art

[0002] As a basic medical device, vertebral ridge rongeurs are widely used in orthopedic surgery. In actual surgical operations, they are mostly used for bone biting in spinal surgery. When used, the movable arm slides on the fixed arm to achieve docking to complete the biting and trimming of the vertebral ridges and other spinal bones.

[0003] Chinese Patent Authorization Announcement Number: CN 210330664 U, Authorization Announcement Date April 17, 2020. The utility model provides a bone-binding forceps, which mainly include a movable front handle and a fixed rear handle. The front spring sheet fixed on the movable front handle and the rear spring sheet fixed on the fixed rear handle are hinged. One end of the movable front handle is fixedly connected to the fixed rear handle by a screw, so that the movable front handle can move left and right relative to the fixed rear handle. A connecting rod is arranged at the front end of the fixed rear handle, and a fixed front cutting edge is arranged at the front end of the connecting rod. A push rod is arranged above the connecting rod, and at the same time, the push rod is connected to the movable front handle and can move left and right relative to the connecting rod. A movable rear cutting edge is arranged at the front end of the push rod, and the fixed front cutting edge and the movable rear cutting edge can cooperate with each other. A bone retraction pin is arranged inside the push rod. The shortcoming of this technical solution is that the lamina rongeurs usually used according to the needs of the bone tissue environment sometimes use specifications of 90° and 40° lower openings. The specification of the lower opening in this solution is 40°. When used, it cannot be flexibly changed to the occlusal position and sometimes needs to be temporarily replaced by 90°, which increases the duration and difficulty of the operation and reduces the efficiency of the operation.

[0004] In summary, rongeurs have the disadvantages of being difficult to bite, inflexible to use, and reducing surgical efficiency. Utility Model Content

[0005] The utility model aims to overcome the shortcomings of the prior art bone rongeurs, such as difficulty in biting, inflexibility in use and reduced surgical efficiency, and provides a bone rongeurs with a pliers head that is easy to bit and flexible in use and improves surgical efficiency.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A bone-binding pliers with an easy-to-engage pliers head comprises a front gun handle and a rear gun handle, the front gun handle is rotatably connected to the rear gun handle, the rear gun handle is provided with a fixed rod, one end of the fixed rod is connected to the rear gun handle, the other end of the fixed rod is connected to the fixed pliers head, a movable through hole is provided in the fixed rod, a push rod is movably connected in the movable through hole, a movable pliers head is slidably connected to the fixed pliers head, one end of the push rod is opposite to the end of the front gun handle, the fixed pliers head is connected to a pliers top block, the other end of the push rod is opposite to one end of the pliers top block, an adjusting structure is connected to the fixed rod, the pliers top block is rotatably connected to the fixed pliers head through the adjusting structure, the pliers top block is provided with a clearance groove, and the clearance groove is arranged opposite to the movable pliers head.

[0008] In the bone-binding forceps with easy-to-engage pliers, the front gun handle is a finger pressing position, the rear gun handle is a tiger's mouth supporting position, and the front gun handle is rotatably connected to the rear gun handle, so that the front gun handle can be operated at one end by fingers and then rotate the other end. One end of a fixed rod is connected to the rear gun handle, and the other end of the fixed rod extends out and is connected to the fixed pliers head. The fixed rod is a hollow structure and the cavity space is set as a movable through hole. The movable through hole is connected to a push rod, and then the push rod can move in the fixed rod under external force. One end of the push rod is opposite to the passively rotatable end of the front gun handle, and the other end is opposite to the movable pliers head. At the same time, the movable pliers head can slide on the fixed pliers head, and then the push rod is pushed by the rotation of the front gun handle, and the push rod pushes the movable pliers head. The movable pliers head applies force through the approaching push rod, so that the pliers top blocks of the movable pliers head and the end of the fixed pliers head cooperate to clamp and remove bone. The top block of the clamp is connected to the end of the fixed clamp head, and the top block of the clamp protrudes from the fixed clamp head to cooperate with the movable clamp head to clamp the bone. The top block of the clamp is rotatably connected to the fixed clamp head, so that the top block of the clamp can change the angle between it and the fixed clamp head, and then flexibly rotate to the required position for biting when entering the tissue, thereby improving flexibility and eliminating the need to select different angles of the clamp head for easy biting of the bone biting forceps, thereby shortening the operation time; a clearance groove is provided on the end surface of the top block on one side opposite to the movable clamp head, so that the movable clamp head can be inserted into the clearance groove after biting off the bone, thereby increasing the biting strength and removal efficiency. It is easier to enter the biting point, improve the flexibility and applicability of the structure, improve the operation efficiency and ensure the resection strength.

[0009] Preferably, the fixed clamp head is provided with a connection groove, the clamp top block is provided with a clearance groove, the clearance groove is plugged into the fixed clamp head, the fixed clamp head is connected with a rotating rod, the clamp top block is provided with a rotating hole, the rotating hole is communicated with the clearance groove, and the rotating rod is plugged into the rotating hole. Both sides of the end of the fixed clamp head are provided with a connection groove, and the clamp top block is provided with a clearance groove so that the clamp top block can be inserted into the end of the fixed clamp head and kept flush with the side of the fixed clamp head, so that the structure can be extended into the tissue, and the clamp top block is connected to the rotating rod so that the clamp top block can be stably rotated on the fixed clamp head. The effect of improving the integrity of the structure and facilitating use while stabilizing the structural connection operation is achieved.

[0010] Preferably, a limit rod is connected to the connection groove, and the clamp top block is placed between the limit rod and the groove bottom of the connection groove. The limit rod is connected to the outermost side of the connection groove of the fixed clamp head, so that the rotation range of the clamp top block is limited by the limit rod, so as to achieve the effect of improving the stability of structural operation.

[0011] Preferably, the adjustment structure includes a push rod 1 and an elastic structure, the fixed clamp head is provided with a movable groove, the elastic structure is connected to the movable groove, one end of the push rod 1 is connected to the elastic structure, and the other end of the push rod 1 is opposite to the clamp top block. The adjustment structure includes a push rod 1 and an elastic structure, the push rod 1 is inserted into the movable groove and connected to the elastic structure, the other end of the push rod 1 pushes out the clamp top block, and the elastic structure facilitates the clamp top block to adaptably extend into the tissue. The effect of improving the convenience and flexibility of structural operation is achieved.

[0012] Preferably, the adjustment structure includes a second push rod, a socket is provided on the fixed rod, the second push rod is plugged into the socket, one end of the second push rod abuts against the top block of the clamp, the other end of the second push rod is connected to a locking structure, and the width of the second push rod is the same as the width of the connecting groove. The adjustment structure includes a second push rod, which is plugged into the socket on the fixed rod, one end of the second push rod abuts against the top block of the clamp, and the other end is connected to the locking structure, so that the push rod in place is fixed by the locking structure to fix the top block of the clamp, and the end of the second push rod abutting against the top block of the clamp is the same as the width of the connecting groove, so as to prevent the excised bone from falling out of the rongeur that is easy to bite with the pliers head. The effect of stable structural connection and guaranteed excision effectiveness is achieved.

[0013] Preferably, the rear gun handle is provided with an adjustment hole, the adjustment hole is connected with the movable through hole, a slider is slidably connected with the adjustment hole, and the slider is connected with the second push rod. The adjustment hole is provided on the rear gun handle to connect the slider with the second push rod in the movable through hole, so that the second push rod can be operated easily through the slider, so as to achieve the effect of improving the convenience of operation.

[0014] Preferably, the fixing rod is provided with a mounting hole, the locking structure includes a locking block, the locking block is connected with an insertion rod, the mounting hole is provided with a slot, the insertion rod is plugged into the slot, the locking block is rotatably connected with the mounting hole, and the locking block is adapted to the second push rod. The locking block is rotatably connected in the mounting hole through the insertion rod, and the second push rod is abutted against the second push rod by rotating the locking block after the fixed clamp head is in place, so that the clamp top block at the other end is fixed for easy removal, so as to achieve the effect of improving the stability of the structural connection.

[0015] The beneficial effects of the utility model are: easier entry into the occlusal point for occlusion, improved flexibility and applicability of the structure; improved surgical efficiency and guaranteed resection strength; improved structural integrity and ease of use; stable structural connection operation; improved structural operation convenience and flexibility; and guaranteed resection effectiveness. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the utility model;

[0017] Figure 2 It is a cross-sectional view of the connection between the clamp top block and the fixed clamp head;

[0018] Figure 3 yes Figure 1 The enlarged view of point A in the middle;

[0019] Figure 4 It is a cross-sectional view of the connection between the slider and the push rod;

[0020] Figure 5 This is a schematic diagram of the connection between the push rod and the front gun handle.

[0021] In the figure: 1. front gun handle, 2. rear gun handle, 3. fixed rod, 4. fixed clamp head, 5. movable through hole, 6. push rod, 7. movable clamp head, 8. clamp top block, 9. make way groove, 10. connecting groove, 11. slider, 12. rotating rod, 13. rotating hole, 14. limit rod, 15. top rod 1, 16. elastic structure, 17. movable groove, 18. top rod 2, 19. jack, 20. mounting hole, 21. locking block, 22. plug rod, 23. slot, 24. adjustment hole, 25. hinged rod. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0023] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0024] Unless otherwise specified, the relative arrangement of the components, numerical expressions and numerical values ​​described in these embodiments do not limit the scope of the present application. For ease of explanation, spatial relative terms such as "upper", "lower", "left", "right" are used in the embodiments to illustrate the relationship between an element or feature shown in the figure and another element or feature. It should be understood that, in addition to the orientation shown in the figure, the spatial terms are intended to include different orientations of the device in use or operation. For example, if the device in the figure is inverted, the element described as being "under" other elements or features will be fixed "on" other elements or features. Therefore, the exemplary term "lower" can include both upper and lower orientations. The device can be fixed in other ways (rotated 90 degrees or located in other orientations), and the spatial relative description used here can be interpreted accordingly. At the same time, it should be understood that for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, process and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, process and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, not as a limitation. Therefore, other examples of the exemplary embodiments may have different values.It should be noted that similar reference numerals and letters denote similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0025] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0026] Embodiment 1:

[0027] like Figure 1 , 2 As shown in Figure 5, a bone-binding forceps with an easy-to-engage pliers head comprises a front gun handle 1 and a rear gun handle 2, the front gun handle 1 is rotatably connected to the rear gun handle 2, the rear gun handle 2 is provided with a fixed rod 3, one end of the fixed rod 3 is connected to the rear gun handle 2, the other end of the fixed rod 3 is connected to a fixed pliers head 4, a movable through hole 5 is provided in the fixed rod 3, a push rod 6 is movably connected in the movable through hole 5, a movable pliers head 7 is slidably connected to the fixed pliers head 4, one end of the push rod 6 is opposite to the end of the front gun handle 1, the fixed pliers head 4 is connected to a pliers top block 8, the other end of the push rod 6 is connected to one end of the movable pliers head 7, an adjusting structure is connected to the fixed rod 3, the pliers top block 8 is rotatably connected to the fixed pliers head 4 through the adjusting structure, the pliers top block 8 is provided with a clearance groove 9, and the clearance groove 9 is arranged opposite to the other end of the movable pliers head 7.

[0028] like Figure 1 , 2As shown, the fixed clamp head 4 is provided with a connecting groove 10, the clamp top block 8 is provided with a make way groove, the make way groove is plugged into the fixed clamp head 4, the fixed clamp head 4 is connected with a rotating rod 12, the clamp top block 8 is provided with a rotating hole 13, the rotating hole 13 is connected to the make way groove, and the rotating rod 12 is plugged into the rotating hole 13.

[0029] like Figure 2 As shown, a limit rod 14 is connected to the connection groove 10, and the clamp top block 8 is placed between the limit rod 14 and the groove bottom of the connection groove 10. The adjustment structure includes a push rod 15 and an elastic structure 16. The fixed clamp head 4 is provided with a movable groove 17. The elastic structure 16 is connected to the movable groove 17. One end of the push rod 15 is connected to the elastic structure 16, and the other end of the push rod 15 is opposite to the clamp top block 8. The adjustment structure includes a push rod 2 18. The fixed rod 3 is provided with a socket 19. The push rod 2 18 is plugged into the socket 19. One end of the push rod 2 18 is against the clamp top block 8. The other end of the push rod 2 18 is connected to a locking structure. The width of the push rod 2 18 is the same as the width of the connection groove 10.

[0030] like Figure 2 , 4 As shown, the rear gun handle 2 is provided with an adjustment hole 24, which is connected to the movable through hole 5, and the adjustment hole 24 is slidably connected with a slider 11, and the slider 11 is connected to the second push rod 18. The fixed rod 3 is provided with a mounting hole 20, and the locking structure includes a locking block 21, and the locking block 21 is connected to a plug rod 22. The mounting hole 20 is provided with a slot 23, and the plug rod 22 is plugged into the slot 23. The locking block 21 is rotatably connected to the mounting hole 20, and the locking block 21 is adapted to the second push rod 18.

[0031] like Figure 1-5 As shown: the front gun handle 1 and the rear gun handle 2 are connected with an articulated rod 25, so that the front gun handle 1 and the rear gun handle 2 are articulated, which is convenient for the front gun handle 1 and the rear gun handle 2 to rotate stably.

[0032] During use: Taking the treatment of laminectomy by unilateral double-channel approach to the back of the spine as an example, firstly, two surgical channels are established through positioning instruments, one channel is inserted with a UBE endoscope for observation, and the other channel is inserted with the bone-biting forceps of the present forceps head that is easy to bite. The front end of the flexibly rotating forceps top block 8 is used to explore and adjust the bite position, and the slider 11 is moved after positioning, so that the slider 11 moves on the adjustment hole 24 to push the connected top rod 18, so that the other end of the top rod 18 overcomes the elastic force of the elastic structure 16 to rotate the forceps top block 8 to a vertical state with the fixed forceps seat 4, and the rotating lock block 21 is rotated and inserted into the adjustment hole 24 to prevent the slider 11 from resetting, so that the forceps top block 8 is fixed, and the front gun handle 1 is held and closed, so that the front gun handle 1 and the rear gun handle 2 are held together, and then the end of the front gun handle 1 pushes one end of the push rod 6, so that the other end of the push rod 6 pushes the movable forceps head 7 and the forceps top block 8 to clamp and bite the bone tissue and continue to apply force, so that the bone is bitten and removed.

[0033] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A rongeur with an easy-to-engage pliers head, characterized in that: The invention comprises a front gun handle (1) and a rear gun handle (2), wherein the front gun handle (1) is rotatably connected to the rear gun handle (2), the rear gun handle (2) is provided with a fixing rod (3), one end of the fixing rod (3) is connected to the rear gun handle (2), the other end of the fixing rod (3) is connected to a fixed clamp head (4), a movable through hole (5) is provided in the fixing rod (3), a push rod (6) is movably connected in the movable through hole (5), a movable clamp head (7) is slidably connected to the fixed clamp head (4), one end of the push rod (6) is opposite to the end of the front gun handle (1), the fixed clamp head (4) is connected to a clamp top block (8), the other end of the push rod (6) is connected to one end of the movable clamp head (7), the fixing rod (3) is connected to an adjustment structure, the clamp top block (8) is rotatably connected to the fixed clamp head (4) through the adjustment structure, the clamp top block (8) is provided with a clearance groove (9), and the clearance groove (9) is arranged opposite to the other end of the movable clamp head (7).

2. A rongeur with an easy-to-engage pliers head according to claim 1, characterized in that: The fixed clamp head (4) is provided with a connecting groove (10), the clamp top block (8) is provided with a clearance groove, the clearance groove is plugged into the fixed clamp head (4), the fixed clamp head (4) is connected to a rotating rod (12), the clamp top block (8) is provided with a rotating hole (13), the rotating hole (13) is connected to the clearance groove, and the rotating rod (12) is plugged into the rotating hole (13).

3. A rongeur with an easy-to-engage pliers head according to claim 2, characterized in that: A limiting rod (14) is connected to the connecting groove (10), and the clamp top block (8) is placed between the limiting rod (14) and the groove bottom of the connecting groove (10).

4. A rongeur with an easy-to-engage pliers head according to claim 2 or 3, characterized in that: The adjustment structure comprises a push rod (15) and an elastic structure (16); the fixed clamp head (4) is provided with a movable groove (17); the elastic structure (16) is connected to the movable groove (17); one end of the push rod (15) is connected to the elastic structure (16); and the other end of the push rod (15) is opposite to the clamp top block (8).

5. The rongeur with an easy-to-engage pliers head according to claim 4, characterized in that: The adjustment structure comprises a second push rod (18), a socket (19) is provided on the fixing rod (3), the second push rod (18) is plugged into the socket (19), one end of the second push rod (18) abuts against the clamp top block (8), the other end of the second push rod (18) is connected to a locking structure, and the width of the second push rod (18) is the same as the width of the connecting groove (10).

6. A rongeur with an easy-to-engage pliers head according to claim 5, characterized in that: The rear gun handle (2) is provided with an adjustment hole (24), the adjustment hole (24) is connected to the movable through hole (5), the adjustment hole (24) is slidably connected to a slider (11), and the slider (11) is connected to the second push rod (18).

7. A rongeur with an easy-to-engage pliers head according to claim 6, characterized in that: The fixing rod (3) is provided with a mounting hole (20), the locking structure comprises a locking block (21), the locking block (21) is connected to an insertion rod (22), the mounting hole (20) is provided with a slot (23), the insertion rod (22) is plugged into the slot (23), the locking block (21) is rotatably connected to the mounting hole (20), and the locking block (21) is adapted to fit the second top rod (18).

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