Rongeur with interchangeable tips

Abstract

The utility model relates to rongeur technical field discloses a kind of rongeur of interchangeable head, including the number of two round blocks, two the round block between through connecting piece connection, the side of two the round block is uniformly connected with holding handle, the side of the round block away from the holding handle is uniformly connected with connecting block, the end of the connecting block away from the round block is provided with head, the end of the connecting block is uniformly provided with the clamping mechanism of fixed head, the inside of the head is provided with the elastic mechanism of improving head replacement speed, simplify the work flow of user replacement rongeur head, improve replacement speed, not only can reduce the time consumption of replacing head, speed up the process of operation, also can shorten the time of surgical site exposure, reduce infection probability to a certain extent, and can guarantee the clamping surface between two head flat, so that rongeur is more stable when clamping bone.

Description

Technical Field

[0001] This utility model relates to the field of bone biting forceps technology, specifically a bone biting forceps with interchangeable forceps heads. Background Technology

[0002] Bone forceps are mainly used for fracture reduction, helping doctors align and stabilize fracture ends. They can also be used for bone cutting, such as osteotomy or bone lengthening. They can also be used for bone traction and fixation of bones or other surgical instruments. There are straight-headed bone forceps, curved-headed bone forceps, pointed-headed bone forceps, and round-headed bone forceps. Different types of bone forceps are required for different bone surgeries.

[0003] However, existing bone-biting forceps with replaceable pliers heads typically use a threaded connection for replacing the pliers heads. Due to the threaded connection, the user needs to manually rotate the pliers head repeatedly during disassembly and assembly, making the disassembly and assembly process relatively slow and inefficient. Furthermore, the threaded connection does not guarantee that the clamping surfaces of the two pliers heads are flush after they are installed on the bone-biting forceps, thus affecting the use of the bone-biting forceps. Utility Model Content

[0004] This invention provides a bone-biting pliers with interchangeable pliers heads, which not only facilitates quick assembly and disassembly of the pliers heads, but also ensures that the clamping surfaces of the two pliers heads remain flush after installation, thus solving the problems mentioned in the background art.

[0005] This utility model provides the following technical solution: a bone-biting forceps with replaceable pliers heads, comprising two circular blocks connected by a connector. Each of the two circular blocks has a gripping handle fixedly connected to one side, and a connecting block fixedly connected to the side of each circular block away from the gripping handle. A pliers head is provided at the end of the connecting block away from the circular block, and a locking mechanism for fixing the pliers head is provided at one end of the connecting block. The pliers head is provided with an elastic mechanism to improve the speed of pliers head replacement.

[0006] Preferably, the engaging mechanism includes two connectors fixedly installed at one end of the connecting block. The pliers head has a matching rectangular insertion slot near the connector. Each of the two connecting blocks has two lifting plates inside. The top of each lifting plate is fixedly connected to a pressing block. The end of the pressing block away from the lifting plate passes through the connecting block and extends to the outside of the connecting block. The side of each lifting plate away from the pressing block is fixedly connected to a buckle. The pliers head has a matching slot near the buckle. An elastic element is provided between the two lifting plates.

[0007] Preferably, the elastic element includes a fixing block disposed between two lifting plates, each fixing block being fixedly connected to the connecting block, and a first spring being disposed between each fixing block and the lifting plate, with a matching first spring groove provided on each fixing block near the first spring.

[0008] Preferably, the elastic mechanism includes a second spring groove at one end of the connector, and a second spring is provided inside the second spring groove. One end of the second spring is fixed inside the second spring groove, and a trapezoidal chamfer is provided at the end of the connector near the pliers head.

[0009] Preferably, the connector includes a rotating sleeve embedded at the center of two circular blocks, and a fixing knob is provided on the top of each rotating sleeve, with the bottom end of the fixing knob threadedly connected to the rotating sleeve.

[0010] Preferably, a third spring is provided between the two grip handles, with both ends of the third spring respectively embedded inside the grip handle.

[0011] This utility model has the following beneficial effects: 1. Through the combined action of the circular block, connector, grip handle, connecting block, clamp head, locking mechanism, and elastic mechanism, the user's workflow for changing the clamp head of the bone-crushing forceps is simplified, and the replacement speed is improved. This not only reduces the time spent changing the clamp head and speeds up the surgical process, but also shortens the exposure time of the surgical site, thus reducing the probability of infection to a certain extent.

[0012] 2. Through the combined action of the circular block, connector, grip handle, connecting block, clamp head, and locking mechanism, the clamping surfaces between the two clamp heads can be kept flush, making the bone-crushing forceps more stable when clamping the bone, reducing operational deviations caused by tool displacement during surgery, and making it easier for users to control the force and direction of bone crushing. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the connecting component structure of this utility model.

[0015] Figure 3 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0016] Figure 4 This is a schematic diagram of the engaging mechanism of this utility model.

[0017] Figure 5 This is a schematic diagram of the elastic mechanism structure of this utility model.

[0018] In the diagram: 1. Circular block; 2. Connector; 21. Rotating sleeve; 22. Fixing knob; 3. Handle; 4. Connecting block; 5. Pliers head; 6. Engaging mechanism; 61. Plug; 62. Plug slot; 63. Lifting plate; 64. Pressing block; 65. Buckle; 66. Slot; 67. Elastic component; 671. Fixing block; 672. First spring; 673. First spring slot; 7. Elastic mechanism; 71. Second spring slot; 72. Second spring; 73. Trapezoidal chamfer; 8. Third spring. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Example 1 This embodiment aims to facilitate the solution of how to replace the pliers head 5 and ensure that the clamping surfaces of the replaced pliers heads 5 are flush. Please refer to [link to relevant documentation]. Figures 1-4 It includes two circular blocks 1 connected by a connector 2. The connector 2 is used for connecting and separating the two circular blocks 1. A handle 3 is fixedly connected to one side of each of the two circular blocks 1. A connecting block 4 is fixedly connected to the side of each circular block 1 away from the handle 3. A plier head 5 is provided at the end of the connecting block 4 away from the circular block 1. A clamping groove is provided on the adjacent side of each of the two plier heads 5. A locking mechanism 6 is provided at one end of each connecting block 4 to fix the plier head 5. The locking mechanism 6 is used to replace the plier head 5. An elastic mechanism 7 is provided inside the plier head 5 to improve the replacement speed of the plier head 5. The elastic mechanism 7 improves the replacement speed of the plier head 5.

[0021] The locking mechanism 6 includes two connectors 61 fixedly installed at one end of the connecting block 4. The pliers 5 have a matching rectangular insertion slot 62 near the connectors 61. The cooperation between the connectors 61 and the insertion slots 62 can ensure that the clamping surfaces of the two pliers 5 remain flush after installation. The interior of each of the two connecting blocks 4 is provided with two lifting plates 63. The top of each lifting plate 63 is fixedly connected to a pressing block 64. The end of the pressing block 64 away from the lifting plate 63 passes through the connecting block 4 and extends to the outside of the connecting block 4. The side of the lifting plate 63 away from the pressing block 64 is fixedly connected to a buckle 65. The side of the buckle 65 near the pliers 5 is set as an inclined surface. The pliers 5 have a matching slot 66 near the buckle 65. The buckle 65 and the slot 66 can make the pliers 5 securely fitted on the outside of the connectors 61. A spring member 67 is provided between the two lifting plates 63. The spring member 67 can apply a certain pushing force to the lifting plate 63.

[0022] The elastic component 67 includes a fixing block 671 disposed between two lifting plates 63. The fixing block 671 can limit the movement stroke of the lifting plate 63. The fixing block 671 is fixedly connected to the connecting block 4. A first spring 672 is disposed between the fixing block 671 and the lifting plate 63. A matching first spring groove 673 is opened on the fixing block 671 near the first spring 672. The first spring groove 673 can limit the first spring 672.

[0023] In this embodiment: The user simultaneously presses the pressing blocks 64 on both sides of the connecting block 4 into the interior. The pressing blocks 64 push the two lifting plates 63 into the interior of the connecting block 4. As the lifting plates 63 move into the interior of the connecting block 4, they drive the buckles 65, causing the buckles 65 to separate from the slots 66 on the pliers head 5. The pliers head 5 can then be replaced. The replaced pliers head 5 is placed on the surface of the connector 61, and the pliers head 5 is pushed towards the connector 61. As the pliers head 5 moves, it is pressed against the buckles 65 by the inclined surface of the buckles 65, causing the buckles 65 to move into the interior of the connector 61. When the pliers head 5 is completely placed on the surface of the connector 61, the slots 66 move to the buckles 65, causing the force at the buckles 65 to disappear. The first spring 672 then elastically recovers and pushes the lifting plates 63. The lifting plates 63 drive the buckles 65 to move into the slots 66, thereby fixing the pliers head 5 to the surface of the connector 61.

[0024] Example 2 This embodiment aims to address a specific problem. It is an improvement upon Embodiment 1. For details, please refer to [link to Embodiment 1]. Figures 1-5The elastic mechanism 7 includes a second spring groove 71 opened at one end of the connector 61. A second spring 72 is provided inside the second spring groove 71. One end of the second spring 72 is fixed inside the second spring groove 71. The second spring groove 71 can not only limit the second spring 72, but also provide a certain storage space for the second spring 72. A trapezoidal chamfer 73 is opened at the end of the connector 61 near the pliers 5. The trapezoidal chamfer 73 can guide the pliers 5 to be fitted on the outside of the connector 61.

[0025] The connector 2 includes a rotating sleeve 21 embedded at the center of two circular blocks 1. Both circular blocks 1 can rotate with the rotating sleeve 21. The top of the rotating sleeve 21 is provided with a fixing knob 22. The bottom end of the fixing knob 22 is threadedly connected to the rotating sleeve 21. The rotating sleeve 21 and the fixing knob 22 can limit the two circular blocks 1 and prevent the two circular blocks 1 from separating.

[0026] A third spring 8 is provided between the two grip handles 3. The two ends of the third spring 8 are respectively embedded in the inside of the grip handles 3, which can automatically control the opening of the bone biting forceps.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0028] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A bone-biting forceps with interchangeable pliers heads, comprising two circular blocks (1), characterized in that: The two circular blocks (1) are connected by a connector (2). A handle (3) is fixedly connected to one side of each of the two circular blocks (1). A connecting block (4) is fixedly connected to the side of each circular block (1) away from the handle (3). A plier head (5) is provided at the end of the connecting block (4) away from the circular block (1). A locking mechanism (6) for fixing the plier head (5) is provided at one end of the connecting block (4). An elastic mechanism (7) for improving the speed of changing the plier head (5) is provided inside the plier head (5).

2. The bone-biting forceps with interchangeable pliers heads according to claim 1, characterized in that: The locking mechanism (6) includes two connectors (61) fixedly installed at one end of the connecting block (4). The clamp head (5) has a matching rectangular insertion slot (62) near the connector (61). The interior of each of the two connecting blocks (4) is provided with two lifting plates (63). The top of each lifting plate (63) is fixedly connected with a pressing block (64). The end of the pressing block (64) away from the lifting plate (63) passes through the connecting block (4) and extends to the outside of the connecting block (4). The side of the lifting plate (63) away from the pressing block (64) is fixedly connected with a buckle (65). The clamp head (5) has a matching slot (66) near the buckle (65). An elastic element (67) is provided between the two lifting plates (63).

3. The bone-biting forceps with interchangeable pliers heads according to claim 2, characterized in that: The elastic element (67) includes a fixing block (671) disposed between two lifting plates (63). The fixing block (671) is fixedly connected to the connecting block (4). A first spring (672) is disposed between the fixing block (671) and the lifting plate (63). A matching first spring groove (673) is opened on the fixing block (671) near the first spring (672).

4. The bone-biting forceps with interchangeable pliers heads according to claim 1, characterized in that: The elastic mechanism (7) includes a second spring groove (71) opened at one end of the plug (61), and a second spring (72) is provided inside the second spring groove (71). One end of the second spring (72) is fixed inside the second spring groove (71), and a trapezoidal chamfer (73) is opened at the end of the plug (61) near the pliers (5).

5. The bone-biting forceps with interchangeable pliers heads according to claim 1, characterized in that: The connector (2) includes a rotating sleeve (21) embedded at the center of two circular blocks (1). The top of each rotating sleeve (21) is provided with a fixing knob (22), and the bottom end of the fixing knob (22) is threadedly connected to the rotating sleeve (21).

6. The bone-biting forceps with interchangeable pliers heads according to claim 1, characterized in that: A third spring (8) is provided between the two grip handles (3), and the two ends of the third spring (8) are respectively embedded in the inside of the grip handle (3).

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