Humerus inner side supporting frame

Abstract

The utility model discloses a humerus inner side support frame, relates to medical instrument technical field, the humerus inner side support frame includes: fixed part and support part, fixed part and support part are fixedly connected, fixed part is used for fixed connection with humerus diaphysis, support part is used for with humerus head and humerus neck of humerus butt joint to support humerus head and humerus neck. The fixing part is arranged on the inner side of the humerus and fixedly connected with the diaphysis of the humerus, the supporting part abuts against the humerus head of the humerus and the humerus neck of the humerus so as to support the humerus head and the humerus neck, the attaching area of the humerus inner side supporting frame and the inner side of the humerus can be increased, and the supporting part can effectively support the inner side of the humerus head; the risks of varus deformity, collapse and the like of the humerus head due to lack of support are reduced, so that subsequent rehabilitation of a patient is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a medial humeral support frame. Background Technology

[0002] In related techniques, varus deformity is prone to occur after humeral head fracture due to lack of support. Internal fixation is usually performed using plates, intramedullary nails, etc. However, the medial support of plates and intramedullary nails is not ideal, and they cannot provide effective medial support for the humerus, which affects the patient's prognosis. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. Therefore, one objective of this invention is to provide a medial humeral support frame that effectively supports the medial side of the humeral head, reducing the risk of varus deformity and collapse of the humeral head due to lack of support.

[0004] According to an embodiment of the present invention, a medial humeral support frame includes: a fixing part and a supporting part, the fixing part and the supporting part being fixedly connected, the fixing part being used to be fixedly connected to the shaft of the humerus, and the supporting part being used to abut against the humeral head and humeral neck to support the humeral head and humeral neck.

[0005] According to the embodiment of the present invention, the medial humeral support frame, by setting a fixing part on the medial side of the humerus and fixing it to the shaft of the humerus, and the support part abutting against the humeral head and neck of the humerus to support the humeral head and neck, can increase the attachment area between the medial humeral support frame and the medial side of the humerus. This is beneficial for the support part to effectively support the medial side of the humeral head, reducing the risk of varus deformity and collapse of the humeral head due to lack of support, thereby benefiting the patient's subsequent rehabilitation.

[0006] In some embodiments of this utility model, the support portion includes: a first support portion and a second support portion, the first support portion being connected between the second support portion and the fixing portion, the first support portion being used to support the neck of the humerus, and the second support portion being used to support the head of the humerus.

[0007] In some embodiments of this utility model, one side surface of the first support portion is constructed as a first arc-shaped surface, which is used to abut against the neck of the humerus.

[0008] In some embodiments of this utility model, an angle is formed between the first support portion and the fixing portion.

[0009] In some embodiments of this utility model, one side surface of the second support is constructed as a second arc-shaped surface, which is used to abut against the humeral head.

[0010] In some embodiments of this utility model, the second support portion is arc-shaped so that one side surface of the second support portion is a second arc-shaped surface.

[0011] In some embodiments of this utility model, the second support portion has at least one first mounting hole.

[0012] In some embodiments of this utility model, two limiting posts are provided on one side surface of the second support portion, and the two limiting posts are spaced apart along the length direction of the second support portion.

[0013] In some embodiments of this utility model, the fixing part is formed with at least one second mounting hole.

[0014] In some embodiments of this utility model, the fixing part and the supporting part are integrally formed.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0017] Figure 1 This is a schematic diagram of the structure of the medial humeral support frame according to an embodiment of the present utility model;

[0018] Figure 2 This is an assembly diagram of the medial humeral support frame and the humerus according to an embodiment of the present utility model;

[0019] Figure 3 This is an assembly diagram of the medial humeral support frame and screws according to an embodiment of the present utility model;

[0020] Figure 4 This is an assembly diagram of the medial humeral support frame, humerus, and retrograde tension screw according to an embodiment of the present invention.

[0021] Figure label:

[0022] Medial humeral support frame 100;

[0023] Fixing part 1; Second mounting hole 11;

[0024] Support part 2; First support part 21; First arc-shaped surface 211;

[0025] Second support part 22; second arc-shaped surface 221; first assembly hole 222; limiting post 223;

[0026] Humerus 200; shaft 201; head of humerus 202; neck of humerus 203;

[0027] Steel nail 300; reverse tension screw 301. Detailed Implementation

[0028] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0029] The following is for reference. Figures 1-4 Description of the medial humeral support frame 100 according to an embodiment of the present invention.

[0030] like Figures 1-4 As shown, the medial humeral support frame 100 according to an embodiment of the present invention includes: a fixing part 1 and a supporting part 2, the fixing part 1 and the supporting part 2 are fixedly connected, the fixing part 1 is used to be fixedly connected to the shaft 201 of the humerus 200, and the supporting part 2 is used to abut against the humeral head 202 and humeral neck 203 of the humerus 200 to support the humeral head 202 and humeral neck 203.

[0031] The humerus 200 includes a humeral head 202, a shaft 201, and a humeral neck 203. Along the extension direction of the shaft 201, the humeral head 202 is located at the end of the shaft 201 near the shoulder, and the humeral neck 203 connects the humeral head 202 and the shaft 201. The fixation part 1 can be a strip structure, extending in the same direction as the shaft 201. Along the extension direction of the fixation part 1, the support part 2 is located at the end of the fixation part 1 near the humeral head 202. In some embodiments of this application, the fixation part 1 and the support part 2 are integrally formed. In some embodiments of this application, the fixation part 1 and the support part 2 are welded together to fix them together, which improves the connection reliability of the fixation part 1 and the support part 2, thereby improving the structural stability of the medial humeral support frame 100.

[0032] The fixation part 1 can be fixedly connected to the shaft 201 of the humerus 200. For example, the fixation part 1 can be connected to the shaft 201 of the humerus 200 by a steel nail 300, or the fixation part 1 can be connected to the shaft 201 of the humerus 200 by a retrograde tension screw 301, so that the medial humeral support frame 100 can be fixed to the humerus 200 by the fixation part 1.

[0033] The support portion 2 is used to abut against the humeral head 202 and humeral neck 203 of the humerus 200, so that the support portion 2 can support the humeral head 202 and humeral neck 203. This arrangement can increase the contact area between the medial humeral support frame 100 and the medial side of the humerus 200, which is conducive to the support portion 2 providing effective support to the medial side of the humeral head 202, reducing the risk of varus deformity and collapse of the humeral head 202 due to lack of support, thereby benefiting the patient's subsequent rehabilitation.

[0034] Furthermore, the support portion 2 can be connected to the humeral head 202 of the humerus 200 via a retrograde lag screw 301. The retrograde lag screw 301 can better cooperate with the medial humeral support frame 100 to stabilize the fracture, and the buttress support force on the fracture site is closer to the ideal state. At the same time, combined with the retrograde lag technique, it can provide positive pushing support for the humerus 200. By fixing the humerus 200 together with the support portion 2 and the retrograde lag screw 301, the stability of the medial humeral support frame 100 can be improved. Moreover, the contralateral support surgery can be completed only through an incision on the medial side of the humerus 200, avoiding incisions on both sides of the humerus 200, thereby reducing patient trauma and lowering the difficulty of the surgery.

[0035] Specifically, when a patient suffers a fracture of the proximal end of the humerus 200 (proximal refers to the position of the humerus 200 near the scapula and clavicle), the medial humeral support frame 100 can be assembled from the side of the humerus 200 facing the body. The fixation part 1 is fixedly connected to the shaft 201 of the humerus 200 using steel nails 300, and the support part 2 is fixedly connected to the humeral head 202 of the humerus 200 using retrograde lag screws 301. This facilitates the joint fixation of the humerus 200 by the retrograde lag screws 301 and the humeral head 202, thereby enabling the medial humeral support frame 100 to effectively fix the humerus 200. The 00 is reliably supported on the medial side of the humerus 200, and the support part 2 reliably supports the humeral head 202 and humeral neck 203 of the humerus 200. This significantly increases the biomechanical strength of the medial fixation of the humerus 200 without damaging the blood supply to the humeral head 202 or the stability of the shoulder joint. This helps the medial humeral support frame 100 to provide reliable medial support for the humerus 200, resist the inversion stress of the humeral head 202, and thus reduce the risk of inversion and collapse of the humeral head 202 and the high incidence of fracture and shearing of the medial humeral support frame 100.

[0036] Therefore, by setting a fixing part 1 on the inner side of the humerus 200 and fixing it to the shaft 201 of the humerus 200, and the supporting part 2 abutting against the humeral head 202 and the humeral neck 203 of the humerus 200 to support the humeral head 202 and the humeral neck 203, the attachment area between the medial humeral support frame 100 and the inner side of the humerus 200 can be increased. This is beneficial for the supporting part 2 to effectively support the inner side of the humeral head 202, reducing the risk of varus deformity and collapse of the humeral head 202 due to lack of support, thus benefiting the patient's subsequent rehabilitation.

[0037] In some embodiments of this utility model, such as Figure 1 As shown, the support part 2 may include: a first support part 21 and a second support part 22. The first support part 21 is connected between the second support part 22 and the fixing part 1. The first support part 21 is used to support the neck of the humerus 203, and the second support part 22 is used to support the head of the humerus 202.

[0038] In some embodiments of this application, the first support portion 21 and the second support portion 22 are integrally formed. In some embodiments of this application, the first support portion 21 and the second support portion 22 are welded together. The first support portion 21 is connected between the second support portion 22 and the fixing portion 1. The first support portion 21 supports the humeral neck 203, and the second support portion 22 supports the humeral head 202. This arrangement makes the structure of the support portion 2 more reasonable, facilitating reliable contact between the first support portion 21 and the humeral neck 203, and between the second support portion 22 and the humeral head 202. This increases the contact area between the medial humeral support frame 100 and the proximal medial side of the humerus 200, thereby enabling the first support portion 21 and the second support portion 22 to more stably support the corresponding humeral neck 203 and humeral head 202, improving the relative stability of the medial humeral support frame 100 and the humerus 200.

[0039] In some embodiments of this utility model, such as Figure 1 and Figure 2 As shown, one side surface of the first support 21 is constructed as a first arcuate surface 211, which is used to abut against the neck of the humerus 203.

[0040] The first support portion 21 has one side surface structured as a first arcuate surface 211. For example, the side surface of the first support portion 21 facing the neck of the humerus 203 is structured as a first arcuate surface 211. The structural dimensions of the first arcuate surface 211 can be adapted to the structural dimensions of the neck of the humerus 203 so that the first arcuate surface 211 can adapt to the curvature of the neck of the humerus 203. This facilitates reliable contact between the first arcuate surface 211 and the neck of the humerus 203. By constructing one side surface of the first support portion 21 as a first arcuate surface 211, the contact area between the first support portion 21 and the neck of the humerus 203 can be further increased, thereby further improving the relative stability between the first support portion 21 and the neck of the humerus 203, reducing the risk of deformation at the neck of the humerus 203, and benefiting the patient's subsequent rehabilitation.

[0041] In some embodiments of this utility model, such as Figure 1 and Figure 3 As shown, an angle is formed between the first support part 21 and the fixing part 1.

[0042] The first support portion 21 and the fixed portion 1 can form an angle so that the arc of the connection position between the first support portion 21 and the fixed portion 1 can be consistent with or approximately consistent with the arc of the humeral neck 203. This is beneficial for the first support portion 21 to better adapt to the arc of the humeral neck 203, thereby facilitating reliable contact between the first arc-shaped surface 211 and the humeral neck 203, and further reducing the risk of deformation at the humeral neck 203.

[0043] In some embodiments of this utility model, such as Figure 3As shown, one side surface of the second support 22 is constructed as a second arcuate surface 221, which is used to abut against the humeral head 202.

[0044] The second support 22 has a surface structured as a second arcuate surface 221. For example, the surface of the second support 22 facing the humeral head 202 is structured as a second arcuate surface 221. The structural dimensions of the second arcuate surface 221 can be adapted to the structural dimensions of the humeral head 202 so that the second arcuate surface 221 can adapt to the curvature of the humeral head 202. This facilitates reliable contact between the second arcuate surface 221 and the humeral head 202. By constructing one side of the second support 22 as a second arcuate surface 221, the contact area between the second support 22 and the humeral head 202 can be further increased, thereby further improving the relative stability between the second support 22 and the humeral head 202, reducing the risk of deformation at the humeral head 202, and benefiting the patient's subsequent rehabilitation.

[0045] In some embodiments of this utility model, such as Figure 3 As shown, the second support portion 22 is arc-shaped so that one side surface of the second support portion 22 is a second arc-shaped surface 221.

[0046] The second support portion 22 can be constructed in an arc shape, so that one side surface of the second support portion 22 is a second arc-shaped surface 221. Furthermore, the arc shape of the second support portion 22 can make the side surface of the second support portion 22 facing the humeral head 202 a second arc-shaped surface 221. This configuration can simplify the forming of the second arc-shaped surface 221 and reduce the risk of excessive thickness in some parts of the second support portion 22 due to machining of the second arc-shaped surface 221. This is beneficial to the lightweight design of the medial humeral support frame 100. When the medial humeral support frame 100 is assembled on the humerus 200 of the patient, it helps to reduce the patient's foreign body sensation and thus facilitates the patient's subsequent rehabilitation.

[0047] In some embodiments of this utility model, such as Figure 1 and Figure 3 As shown, the second support portion 22 has at least one first mounting hole 222.

[0048] The second support portion 22 may have one, two, or more first mounting holes 222. This application uses the example of the second support portion 22 having two first mounting holes 222 for illustration. This arrangement allows for a reasonable number of first mounting holes 222. When the steel nail 300 passes through the corresponding first mounting hole 222 and is assembled with the humeral head 202, the angles of the steel nail 300 in the two first mounting holes 222 are different, which helps to improve the relative stability between the second support portion 22 and the humerus. It can also reduce the risk that the second support portion 22 and the humerus 200 cannot be reliably fixed if only one first mounting hole 222 is set. It can also reduce the risk that too many first mounting holes 222 will cause too much damage to the humerus 200, thereby accelerating the recovery speed of the humerus 200.

[0049] In some embodiments of this utility model, such as Figure 3 As shown, two limiting posts 223 are provided on one side surface of the second support part 22, and the two limiting posts 223 are spaced apart along the length direction of the second support part 22.

[0050] The second support portion 22 has two limiting posts 223 on one side surface. For example, the side of the second support portion 22 facing the humerus 200 has two limiting posts 223. The ends of the two limiting posts 223 facing away from the second support portion 22 can be constructed as spikes to allow the limiting posts 223 to be inserted into the humeral head 202, thereby increasing the fixation and support for the humeral head 202. The two limiting posts 223 are spaced apart along the length of the second support portion 22. For example, along the length of the second support portion 22, the two limiting posts 223 are located near both ends of the second support portion 22. This arrangement allows for a reasonable positioning of the two limiting posts 223, which is conducive to the two limiting posts 223 fitting and assembling with the humeral head 202 at different positions, further increasing the fixation and support of the second support portion 22 for the humeral head 202, thus benefiting the patient's subsequent rehabilitation.

[0051] In some embodiments of this utility model, such as Figure 1 As shown, the fixing part 1 has at least one second mounting hole 11.

[0052] The fixation part 1 has at least one second mounting hole 11. For example, the fixation part 1 may have one, two, or more second mounting holes 11. This application describes the fixation part 1 having two second mounting holes 11 as an example. This arrangement allows for a reasonable number of second mounting holes 11. When the steel nail 300 passes through the corresponding second mounting hole 11 and is assembled with the humeral shaft 201, the risk that the fixation part 1 and the humeral shaft 201 cannot be reliably fixed due to only having one second mounting hole 11 can be reduced. It can also reduce the risk of excessive damage to the humeral shaft 200 due to having too many second mounting holes 11, thereby accelerating the recovery speed of the humeral shaft 200.

[0053] In some embodiments of this utility model, such as Figure 1 As shown, the fixing part 1 and the supporting part 2 are integrally formed.

[0054] The fixing part 1 and the supporting part 2 are integrally formed, that is, the fixing part 1 and the supporting part 2 are constructed as an integral part. The integral part has good structural strength. By making the fixing part 1 and the supporting part 2 integrally formed, the connection reliability of the fixing part 1 and the supporting part 2 can be improved, and the probability of breakage at the connection between the fixing part 1 and the supporting part 2 can be reduced, thereby improving the structural stability of the medial humeral support frame 100.

[0055] Furthermore, compared with the separate processing and reconnection of the fixing part 1 and the supporting part 2, the integral molding of the fixing part 1 and the supporting part 2 can reduce the number of production molds and processing steps of the medial humeral support frame 100, thereby improving the production efficiency of the medial humeral support frame 100 and reducing the production cost of the medial humeral support frame 100.

[0056] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0057] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A medial humeral support frame, characterized in that, include: The fixed part and the supporting part are fixedly connected. The fixed part is used to fix the fixed part to the shaft of the humerus, and the supporting part is used to abut against the humeral head and humeral neck of the humerus to support the humeral head and humeral neck. The support portion includes: a first support portion and a second support portion, wherein the first support portion is connected between the second support portion and the fixing portion, the first support portion is used to support the humeral neck, and the second support portion is used to support the humeral head; Two limiting posts are provided on one side surface of the second support part, and the two limiting posts are spaced apart along the length direction of the second support part.

2. The medial humeral support frame according to claim 1, characterized in that, One side surface of the first support is constructed as a first arc-shaped surface, which is used to abut against the neck of the humerus.

3. The medial humeral support frame according to claim 2, characterized in that, An angle is formed between the first support portion and the fixed portion.

4. The medial humeral support frame according to claim 1, characterized in that, One side surface of the second support is constructed as a second arc-shaped surface, which is used to abut against the humeral head.

5. The medial humeral support frame according to claim 4, characterized in that, The second support portion is arc-shaped so that one side surface of the second support portion is the second arc-shaped surface.

6. The medial humeral support frame according to claim 1, characterized in that, The second support portion has at least one first mounting hole.

7. The medial humeral support frame according to any one of claims 1-6, characterized in that, The fixing part has at least one second mounting hole.

8. The medial humeral support frame according to any one of claims 1-6, characterized in that, The fixing part and the supporting part are integrally formed.

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