Humerus surgical neck fracture reduction device

Abstract

The utility model discloses a humerus surgical neck fracture reduction device, which comprises a zigzag support plate (1), a ball (2) and an adjusting needle (3), a ball mounting through hole (4) with a spherical inner wall is dug in the upper part of the zigzag support plate (1), and the ball (2) is mounted in the ball mounting through hole (4) and can rotate and be locked relative to the ball mounting through hole (4). The ball body (2) is of a hollow structure, and a plurality of positioning through holes (5) for the adjusting needles (3) to penetrate through are evenly distributed in the two sides of the ball body (2). And the lower part of the zigzag supporting plate (1) is provided with a strip-shaped groove (6) and at least one positioning bolt hole (7). The humerus upper cover reduction device is ingenious in structure, all the structures are prepared in advance, the adjusting needle capable of flexibly stirring the humerus upper cover is used, the position of the adjusting needle can be locked in time, the humerus upper cover reduction speed can be greatly increased, meanwhile, accuracy and stability are guaranteed, and the operation progress is accelerated.

Description

Technical Field

[0001] The utility model belongs to the field of medical devices, in particular to a reduction device for fractures of the surgical neck of the humerus. Background Art

[0002] When there is a fracture in the upper part of the existing humerus, during the operation of connecting the surgical neck of the humerus, usually a doctor needs to manually correct the upper cover of the humerus to the correct position first, and then nail a corresponding fixed support plate on the outside of the bone. However, because after the fracture of the humeral neck, the upper cover of the humerus usually slides obliquely downward for a certain distance, and its round head will slightly tilt and fall into the lower humerus, so when it actually needs to be repaired and connected, the upper cover of the humerus is misaligned with the lower humerus. Because of this misaligned relationship, and the bone is three-dimensional, when the doctor corrects the position of the upper cover of the humerus, the upper cover of the humerus needs to be pulled out from the lower humerus first and then their positions are carefully corrected. Usually, it needs to be corrected from the front first, and then the patient needs to be turned over to confirm whether the back side has also been corrected in place from the back side. However, when turning over, the position that has just been corrected may have changed again because it has not been fixed, resulting in that when looking at the back side and seeing that it has been corrected in place and then looking back at the front side, it is no longer in the correct position. Therefore, the process of positioning the upper cover of the humerus requires great care and is very time-consuming, and it also depends very much on the actual operation experience of the doctor. Moreover, the final positioning is difficult to be very accurate. On this basis, after installing the support plate, it is very easy to affect the recovery time and recovery effect due to inaccurate positioning, increasing the pain and economic pressure of the patient. Therefore, people need to find a method that makes the positioning of the humeral neck more convenient, faster and more accurate. Summary of the Utility Model

[0003] In order to overcome the deficiencies of the above-mentioned existing problems, the utility model provides a reduction device for fractures of the surgical neck of the humerus that is convenient to use and accurately positioned.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] The reduction device for fractures of the surgical neck of the humerus includes a folded support plate 1, a sphere 2 and an adjusting needle 3. The fold of the folded support plate 1 is adapted to the shape of the upper part of the humerus. A sphere installation through hole 4 with a spherical inner wall is dug on the upper part of the folded support plate 1. The sphere 2 is installed in the sphere installation through hole 4 and can rotate and be locked relative to the sphere installation through hole 4. The sphere 2 is a hollow structure, and a number of positioning through holes 5 for the adjusting needle 3 to pass through are evenly distributed on both sides of the sphere 2. A strip-shaped groove 6 for inserting a bolt and at least one positioning bolt hole 7 are provided at the lower part of the folded support plate 1.

[0006] Preferably, on the inner side of the folded support plate 1 and the inner wall of the sphere mounting through hole 4, a plurality of arc-shaped clamping grooves 8 parallel to the outer surface of the folded support plate 1 are further provided along the axial direction. An adjusting chuck 9 for abutting against or locking the sphere 2 is embedded in each of the arc-shaped clamping grooves 8. A rotary positioning groove 10 is provided in the middle of the adjusting chuck 9. A groove communicating with the middle of the arc-shaped clamping groove 8 is dug on the side of the folded support plate 1 away from the human body, so that an external rotating mechanism can extend into and cooperate with the rotary positioning groove 10 to drive the adjusting chuck 9 to rotate as required. The adjusting chuck 9 is a circular structure with a cut corner 11 on one edge, and the other edge parts are sequentially an arc-shaped smooth surface 12 and a toothed surface 13, so that the sphere can rotate and be locked relative to the sphere mounting through hole by loosening the sphere, initially positioning the sphere, and locking the sphere.

[0007] More preferably, on the inner side of the folded support plate 1 and the inner wall of the sphere mounting through hole 4, 2 arc-shaped clamping grooves 8 parallel to the outer surface of the folded support plate are provided along the axial direction. Further, the 2 arc-shaped clamping grooves 8 parallel to the outer surface of the folded support plate are located one on the left and the other on the right below the position of the sphere 2.

[0008] More preferably, the rotary positioning groove 10 is a plum blossom internal hexagonal structure.

[0009] Preferably, the positioning bolt hole 7 is located above or below the strip-shaped groove 6.

[0010] Preferably, a strip-shaped groove 6 for inserting a bolt and a positioning bolt hole 7 are provided at the lower part of the folded support plate 1, and the positioning bolt hole 7 is located below the strip-shaped groove 6.

[0011] Preferably, a protrusion 14 facing the body is further provided on the upper part of the folded support plate 1 on the side close to the body, so that the folded support plate 1 can better lean against the upper part of the humerus during fixation, making the positioning more convenient.

[0012] Preferably, the folded support plate 1 is of an upper-wide and lower-narrow structure.

[0013] The beneficial effects of the present utility model are as follows:

[0014] The humerus surgical neck fracture reduction device of the present utility model has a clever structure. All structures are pre-prepared and do not need to be manufactured on site. Moreover, the structure matches the upper part of the humerus. By using an adjusting needle that can flexibly lift the upper cover of the humerus, and the position of the adjusting needle can be locked in time, the reduction speed of the upper cover of the humerus can be greatly accelerated, while ensuring accuracy and stability, greatly accelerating the surgical process and improving the success rate of the surgery, significantly improving the clinical treatment effect, reducing surgical trauma, alleviating the pain of patients, and having strong practicability and being worthy of promotion. Description of the Drawings

[0015] The following further describes the present utility model in conjunction with the accompanying drawings and embodiments, where:

[0016] Figure 1 is a three-dimensional structural schematic diagram of an embodiment of the present utility model;

[0017] Figure 2 is Figure 1 a perspective structural schematic diagram of

[0018] Figure 3 is a three-dimensional structural schematic diagram of another angle of an embodiment of the present utility model;

[0019] Figure 4 is Figure 3 a disassembled structural schematic diagram at an angle;

[0020] Figure 5 is a three-dimensional structural schematic diagram of an adjusting chuck;

[0021] Figure 6 is Figure 1 a front view structural schematic diagram of

[0022] Figure 7 is Figure 6 an enlarged view at I in

[0023] Figure 8 is Figure 6 an enlarged view at II in

[0024] Figure 9 is a usage schematic diagram of an embodiment of the present utility model;

[0025] Figure 10 is a structural schematic diagram after humeral surgical neck bone grafting surgery. Specific embodiments

[0026] All features disclosed in this specification, or all steps in the disclosed methods or processes, except for mutually exclusive features and / or steps, can be combined in any manner.

[0027] Any feature disclosed in this specification (including any additional claims, abstract, and drawings), unless specifically recited, can be replaced by other equivalent or similar-purpose alternative features. That is, unless specifically recited, each feature is only an example of a series of equivalent or similar features.

[0028] Such as Figures 1-10As shown in the figure, the humeral surgical neck fracture reduction device includes a folded support plate 1, a sphere 2, and an adjustment needle 3. The fold of the folded support plate 1 is adapted to the shape of the upper part of the humerus. A sphere mounting through-hole 4 with a spherical inner wall is dug on the upper part of the folded support plate 1. The sphere 2 is mounted in the sphere mounting through-hole 4 and can rotate and be locked relative to the sphere mounting through-hole 4. The sphere 2 is a hollow structure, and a number of positioning through-holes 5 for the adjustment needle 3 to pass through are evenly distributed on both sides of the sphere 2. A strip-shaped groove 6 for inserting a bolt and at least one positioning bolt hole 7 are provided at the lower part of the folded support plate 1.

[0029] On the inner wall of the sphere mounting through-hole 4 inside the folded support plate 1, several arc-shaped slots 8 parallel to the outer surface of the folded support plate 1 are also provided along the axial direction. An adjustment chuck 9 for abutting against or locking the sphere 2 is embedded in each of the arc-shaped slots 8. A rotation positioning groove 10 is provided in the middle of the adjustment chuck 9. A groove that can communicate with the middle of the arc-shaped slot 8 is dug on the side of the folded support plate 1 away from the human body, so that an external rotation mechanism can extend into and cooperate with the rotation positioning groove 10 to drive the adjustment chuck 9 to rotate as required. The adjustment chuck 9 is a circular structure with a cut-off corner 11 on one edge, and the other edge parts are in turn an arc-shaped smooth surface 12 and a toothed surface 13, so that the sphere can rotate and be locked relative to the sphere mounting through-hole by the way of loosening the sphere, initially positioning the sphere, and locking the sphere.

[0030] On the inner wall of the sphere mounting through-hole 4 inside the folded support plate 1, 2 arc-shaped slots 8 parallel to the outer surface of the folded support plate are provided along the axial direction. Further, the 2 arc-shaped slots 8 parallel to the outer surface of the folded support plate are located one on the left and one on the right below the position of the sphere 2.

[0031] The rotation positioning groove 10 is a plum blossom inner hexagon structure.

[0032] The positioning bolt hole 7 is located above or below the strip-shaped groove 6.

[0033] A strip-shaped groove 6 for inserting a bolt and a positioning bolt hole 7 are provided at the lower part of the folded support plate 1, and the positioning bolt hole 7 is located below the strip-shaped groove 6.

[0034] On the upper part of the folded support plate 1, a protrusion 14 facing the body is further provided on the side close to the body, so that the folded support plate 1 can better lean against the upper part of the humerus during fixation, making positioning more convenient.

[0035] The folded support plate 1 is a structure with a wider upper part and a narrower lower part.

[0036] The usage steps of the humeral surgical neck fracture reduction device in the humeral neck fracture repair operation:

[0037] (1) Install the sphere 2 into the sphere installation through-hole 4 of the folded support plate 1 and initially lock the position of the sphere 2. The positioning through-holes 5 on both sides of the sphere 2 face the body and away from the body respectively. Then, preliminarily conformally fix the folded support plate 1 to the humerus according to the position of the humerus. Specifically, on the premise of keeping the sphere 2 above the folded support plate 1 aligned with the upper cover of the humerus, it is achieved by driving bolts into the strip-shaped groove 6 below according to the actual situation;

[0038] (2) Further fix the position of the folded support plate 1 by driving bolts into the positioning bolt holes 7 on the folded support plate 1;

[0039] (3) Insert the adjusting needle 3 facing the upper cover of the humerus into the sphere 2 as needed, and drive the adjusting needle 3 into the upper cover of the humerus. Then, under the assistance of a real-time X-ray imaging device, lift the upper cover of the humerus to the correct position by toggling the adjusting needle 3 to reset it, and then lock the sphere 2 to lock the position of the upper cover of the humerus fixed to the adjusting needle 3;

[0040] (4) With the position of the upper cover of the humerus locked, nail the common fixed support plates 15 on both sides of the upper and lower parts of the humerus and the folded support plate 1 to complete the reduction of the surgical neck fracture of the humerus, and then remove the folded support plate 1. If necessary, after removing the folded support plate 1, fix another fixed support plate 15 at the position where the original folded support plate 1 was fixed.

[0041] Among them, specifically, before the sphere 2 is installed into the sphere installation through-hole 4 on the folded support plate 1, the notch 11 on the adjusting chuck 9 faces the sphere installation through-hole. After the sphere 2 is installed into the sphere installation through-hole 4, rotate the adjusting chuck 9 so that the circular arc smooth surface 12 on the adjusting chuck 9 contacts the sphere 2 to make the adjusting chuck 9 have a certain frictional force on the sphere 2 to initially lock the position of the sphere; after the adjusting needle 3 is adjusted in place, rotate the adjusting chuck 9 so that the toothed surface 13 on the adjusting chuck contacts the sphere 2 to lock the position of the sphere by increasing the frictional force of the adjusting chuck 9 on the sphere, thereby locking the position of the adjusting needle 3.

[0042] The reduction device for the surgical neck fracture of the humerus of the present utility model has a clever structure. All structures are pre-prepared and do not need to be manufactured on-site. Moreover, the structure matches the upper part of the humerus. By using the adjusting needle that can flexibly lift the upper cover of the humerus and the position of the adjusting needle can be locked in time, the reduction speed of the upper cover of the humerus can be greatly accelerated, while ensuring accuracy and stability, greatly accelerating the surgical process and improving the success rate of the surgery, significantly improving the clinical treatment effect, reducing surgical trauma, alleviating the pain of patients, with strong practicability and worthy of promotion.

[0043] The utility model is not limited to the foregoing specific embodiments. The utility model extends to any new feature or any new combination disclosed in this specification, as well as any new combination of steps of any new method or process disclosed.

Claims

1. A device for reducing a surgical neck fracture of the humerus, characterized in that: The invention comprises a folding support plate (1), a sphere (2) and an adjusting pin (3); the folding shape of the folding support plate (1) is adapted to the shape of the upper part of the humerus; a sphere mounting through hole (4) with a spherical inner wall is excavated on the upper part of the folding support plate (1); the sphere (2) is mounted in the sphere mounting through hole (4) and can be rotated and locked relative to the sphere mounting through hole (4); the sphere (2) is a hollow structure, and a plurality of positioning through holes (5) for the adjusting pin (3) to pass through are evenly distributed on both sides of the sphere (2); and a strip groove (6) for the bolt to be inserted and at least one positioning bolt hole (7) are provided on the lower part of the folding support plate (1).

2. The humeral surgical neck fracture reduction device according to claim 1, characterized in that: A plurality of arc-shaped grooves (8) parallel to the outer surface of the folding support plate (1) are also provided in the axial direction on the inner wall of the ball mounting through hole (4) in the folding support plate (1). An adjusting chuck (9) for supporting or locking the ball (2) is embedded in each of the arc-shaped grooves (8). A rotation positioning groove (10) is provided in the middle of the adjusting chuck (9). A groove which can be connected with the middle of the arc-shaped groove (8) is dug on the side of the folding support plate (1) away from the human body so that an external rotating mechanism can extend into and cooperate with the rotation positioning groove (10) to drive the adjusting chuck (9) to rotate as required. The adjusting chuck (9) is a circular structure with a missing corner (11) on one edge, and the other edge parts are arc-shaped smooth surfaces (12) and toothed surfaces (13) in sequence.

3. The humeral surgical neck fracture reduction device according to claim 2, characterized in that: Two arc-shaped grooves (8) parallel to the outer surface of the folding support plate are axially arranged on the inner wall of the ball mounting through hole (4) inside the folding support plate (1).

4. The humeral surgical neck fracture reduction device according to claim 2, characterized in that: The rotation positioning groove (10) is a hexagonal structure.

5. The humeral surgical neck fracture reduction device according to claim 1, characterized in that: The positioning bolt hole (7) is located above or below the strip-shaped groove (6).

6. The humeral surgical neck fracture reduction device according to claim 1, characterized in that: The lower part of the folding support plate (1) is provided with a strip-shaped groove (6) for inserting a bolt and a positioning bolt hole (7), and the positioning bolt hole (7) is located below the strip-shaped groove (6).

7. The humeral surgical neck fracture reduction device according to claim 1, characterized in that: The upper part of the folding support plate (1) is also provided with a protrusion (14) facing the body on the side close to the body.

8. The humeral surgical neck fracture reduction device according to claim 1, characterized in that: The folding support plate (1) is a structure that is wide at the top and narrow at the bottom.

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