universal end block

Abstract

In order to solve the prior art, the utility model provides a universal end block, include: fixed block and connecting block, the fixed block one end sets the bone needle installation hole, the other end sets the connecting end board, the connecting end board with fixed block one end lower half fixed connection, the connecting end board top surface sets down the connecting groove, the connecting end board is away from fixed block one end and opens down the connecting hole, the connecting end board top sets the connecting end cover, the connecting end cover bottom surface corresponds down the connecting groove, the connecting end cover one end sets up the connecting hole, the connecting end cover with connecting end board interlock connection, the connecting block faces fixed block one end and sets up the universal ball head with universal shaft, the universal shaft one end connects the universal ball head other end with the connecting block connection, the universal shaft passes through the universal connecting hole and makes the universal ball head embed in the universal groove, the connecting block other end sets up the connecting rod installation hole, the connecting rod installation hole sets up the connecting rod, the utility model discloses the realization connecting block and fixed block various angle connection, and can real -time angle regulation.

Description

Technical Field

[0001] This utility model belongs to the field of medical tool technology, specifically relating to a universal end block. Background Technology

[0002] Joints are formed by the connection of adjacent bones through a capsule of connective tissue. The connection between bones is called a joint, and there is a cavity between opposing bone surfaces containing a small amount of synovial fluid. Joints have a relatively large range of motion. Each joint has articular surfaces, a joint capsule, and a joint cavity; some joints also have auxiliary structures such as ligaments, articular discs, and menisci. Because joints are prone to a large range of motion, bone fixation devices are needed for auxiliary fixation in surgery treating fractures on both sides of the joint. However, traditional bone fixation devices can usually only adjust the distance between the sliders at both ends, but cannot adjust the angle of the inserted bone screws according to the bone position, especially since the bones at both ends of the joint often have a large bending angle, which traditional bone fixation devices cannot meet. Therefore, the invention of a bone fixation device with multi-directional angle adjustment is a much-needed product in the market. Utility Model Content

[0003] This utility model addresses the problems existing in the prior art by providing a universal end block, comprising: a fixing block and a connecting block. One end of the fixing block is provided with a bone pin mounting hole for mounting a bone pin, and the other end is provided with a connecting end plate. The connecting end plate is fixedly connected to the lower half of one end of the fixing block. A lower connecting groove is provided on the top surface of the connecting end plate, and a lower connecting hole is formed at the end of the connecting end plate away from the fixing block. A connecting end cover is provided above the connecting end plate, with its bottom surface corresponding to the lower connecting groove, and the end of the connecting end cover away from the fixing block corresponding to the lower connecting hole. An upper connecting hole is provided; the connecting end cover and the connecting end plate are interlocked; the lower connecting groove and the upper connecting groove form a universal groove; the lower connecting hole and the upper connecting hole form a universal connecting hole; a universal ball head and a universal shaft are provided at one end of the connecting block facing the fixed block; one end of the universal shaft is connected to the universal ball head and the other end is connected to the connecting block; the universal shaft passes through the universal connecting hole so that the universal ball head is embedded in the universal groove, and the universal ball head can rotate in the universal groove; a connecting rod mounting hole is provided at the other end of the connecting block, and a connecting rod is installed in the connecting rod mounting hole.

[0004] Furthermore, the width of the connecting block is greater than its height, and the mounting holes for the connecting rods are symmetrically arranged with the vertical center line of the connecting block as the axis, with each of the two connecting rods corresponding to one of the mounting holes.

[0005] Furthermore, the fixing block is provided with at least one bone pin mounting hole.

[0006] Furthermore, the connecting end plate and the connecting end cover are respectively provided with locking holes, and locking bolts are screwed into the locking holes to fix the connecting end plate and the connecting end cover.

[0007] Furthermore, a positioning protrusion is provided at the center of one end of the connecting end cover facing the fixing block, and a positioning groove is provided on the fixing block corresponding to the positioning protrusion. When the connecting end cover is fixed to the connecting end plate, the positioning protrusion is embedded in the positioning groove.

[0008] Furthermore, the inner diameter of the universal joint hole is smaller than the inner diameter of the universal ball joint and larger than the outer diameter of the universal shaft.

[0009] This utility model has at least one of the following advantages:

[0010] 1. The connecting block and the fixing block of this utility model are connected by a universal ball joint and a universal shaft, so as to realize the connection between the connecting block and the fixing block at various angles and the angle can be adjusted in real time.

[0011] 2. The connecting end cover of this utility model is provided with a positioning protrusion and the fixing block is provided with a corresponding positioning groove, which facilitates positioning when the connecting end cover is connected to the connecting end plate, and avoids the waste of time and operation caused by aligning the connecting end cover with the locking screw hole during installation. Attached Figure Description

[0012] Figure 1 The diagram shown is a schematic diagram of the structure of this utility model. Detailed Implementation

[0013] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the scope of the present utility model.

[0014] Example 1

[0015] like Figure 1 As shown, the universal joint includes: a fixing block 1 and a connecting block 2. One end of the fixing block 1 has a bone pin mounting hole 5, into which a bone pin 6 is installed; the other end has a connecting end plate 3. The connecting end plate 3 is fixedly connected to the lower half of one end of the fixing block 1. A lower connecting groove is provided on the top surface of the connecting end plate 3, and a lower connecting hole is provided at the end of the connecting end plate 3 away from the fixing block 1. A connecting end cover 4 is provided above the connecting end plate 3. The bottom surface of the connecting end cover 4 corresponds to the lower connecting groove, and an upper connecting hole is provided at the end of the connecting end cover 4 away from the fixing block, corresponding to the lower connecting hole. The connecting end cover 4 and the connecting end plate 2 are connected... The end plates 3 are interlocked and connected. The lower connecting groove and the upper connecting groove form a universal groove, and the lower connecting hole and the upper connecting hole form a universal connecting hole. The connecting block surface 2 is provided with a universal ball head 11 and a universal shaft 12 at one end of the fixed block 1. One end of the universal shaft 12 is connected to the universal ball head 11, and the other end is connected to the connecting block 2. The universal shaft 12 passes through the universal connecting hole so that the head of the universal ball 11 is embedded in the universal groove, and the universal ball head 11 can rotate in the universal groove. The other end of the connecting block 2 is provided with a connecting rod mounting hole 13, and a connecting rod 14 is provided in the connecting rod mounting hole 13.

[0016] The width of the connecting block 2 is greater than its height, and the mounting holes of the connecting rod 13 are symmetrically arranged with the vertical center line of the connecting block 2 as the axis. The two connecting rods 14 are arranged one-to-one with the mounting holes 13. The fixing block 1 is provided with at least one bone pin mounting hole 5.

[0017] The connecting end plate 3 and the connecting end cover 4 are respectively provided with locking holes 7, and locking bolts 8 are screwed into the locking holes 7 to fix the connecting end plate 3 and the connecting end cover 4. The inner diameter of the universal connection hole is smaller than the inner diameter of the universal ball head 11 and larger than the outer diameter of the universal shaft 12.

[0018] The usage process of this utility model is as follows: First, roughly determine the angle between one end of the connecting rod 14 and one end of the fixing block 1. Adjust the angle between the connecting rod 14 and the fixing block 1 by rotating the universal ball head 11. Then, drive the bone nail 6 into the bone and fine-tune the angle between the connecting rod 14 and the fixing block 1. After the angle adjustment is completed, tighten the locking bolt 8 to clamp the connecting end cover 4 and the connecting end plate 3. At this time, the universal ball head 11 is fixed and no longer rotates.

[0019] Example 2

[0020] like Figure 1 As shown, in this embodiment, the connecting end cover 4 is provided with a positioning protrusion 9 at the middle of one end facing the fixing block 1, and the fixing block 1 is provided with a positioning groove 10 corresponding to the positioning protrusion 9. When the connecting end cover 4 is fixed to the connecting end plate 3, the positioning protrusion 9 is embedded in the positioning groove 10.

[0021] This utility model has at least one of the following advantages:

[0022] 1. The connecting block and the fixing block of this utility model are connected by a universal ball joint and a universal shaft, so as to realize the connection between the connecting block and the fixing block at various angles and the angle can be adjusted in real time.

[0023] 2. The connecting end cover of this utility model is provided with a positioning protrusion and the fixing block is provided with a corresponding positioning groove, which facilitates positioning when the connecting end cover is connected to the connecting end plate, and avoids the waste of time and operation caused by aligning the connecting end cover with the locking screw hole during installation.

[0024] It should be noted and understood that various modifications and improvements can be made to the present invention as described in the above description without departing from the spirit and scope of the claims. Therefore, the scope of the claimed technical solutions is not limited to any specific exemplary teachings given.

Claims

1. A universal joint block, characterized in that, include: The system comprises a fixed block and a connecting block. One end of the fixed block has a bone pin mounting hole for mounting a bone pin, and the other end has a connecting end plate. The connecting end plate is fixedly connected to the lower half of one end of the fixed block. A lower connecting groove is provided on the top surface of the connecting end plate, and a lower connecting hole is provided at the end of the connecting end plate away from the fixed block. A connecting end cover is provided above the connecting end plate, with its bottom surface corresponding to the lower connecting groove. An upper connecting hole is provided at the end of the connecting end cover away from the fixed block, corresponding to the lower connecting hole. The connecting end cover and the connecting end plate are interlocked. The lower and upper connecting grooves form a universal groove, and the lower and upper connecting holes form a universal connecting hole. A universal ball joint and a universal shaft are provided on the end of the connecting block facing the fixed block. One end of the universal shaft is connected to the universal ball joint, and the other end is connected to the connecting block. The universal shaft passes through the universal connecting hole, allowing the universal ball joint to be embedded in the universal groove and rotate within it. A connecting rod mounting hole is provided at the other end of the connecting block, and a connecting rod is installed within the connecting rod mounting hole.

2. The universal joint block according to claim 1, characterized in that, The width of the connecting block is greater than its height, and the mounting holes for the connecting rods are symmetrically arranged with the vertical center line of the connecting block as the axis. The two connecting rods are arranged in a one-to-one correspondence with the mounting holes for the connecting rods.

3. The universal joint block according to claim 1, characterized in that, The fixing block is provided with at least one bone pin mounting hole.

4. The universal joint block according to claim 1, characterized in that, The connecting end plate and the connecting end cover are respectively provided with locking holes, and locking bolts are screwed into the locking holes to fix the connecting end plate and the connecting end cover.

5. The universal joint block according to claim 4, characterized in that: The connecting end cover has a positioning protrusion at the center of one end facing the fixing block, and the fixing block has a positioning groove corresponding to the positioning protrusion. When the connecting end cover is fixed to the connecting end plate, the positioning protrusion is embedded in the positioning groove.

6. The universal joint block according to claim 1, characterized in that, The inner diameter of the universal joint hole is smaller than the inner diameter of the universal ball head and larger than the outer diameter of the universal shaft.

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