Clavicle full-length anatomical steel plate

Abstract

The utility model belongs to the field of medical instruments, and particularly discloses a clavicle anatomy fixing steel plate which comprises an S-shaped steel plate, the S-shaped steel plate is attached to the shape of a clavicle, locking screw holes which are linearly arranged are formed in one end of the S-shaped steel plate, reverse compression screw holes are formed between the locking screw holes, and the S-shaped steel plate and the reverse compression screw holes are integrally formed. Locking screw holes which are arranged in a central symmetry mode are formed in the other end of the S-shaped steel plate, a front side fixing plate is additionally arranged on the side face of the reverse compression screw hole, and a front side screw hole is formed in the front side fixing plate. The S-shaped steel plate which is more suitable for the growth of the clavicle of a human body is used, the protection of clavicle blood supply is increased through incisions at the two ends of the clavicle and a front side fixing structure, the clavicle steel plate is inserted subcutaneously, the length of the clavicle is recovered, meanwhile, damage to the clavicle blood supply is further reduced, meanwhile, screw holes in the middle of the steel plate are reduced, and the cost is reduced. The risk of steel plate breakage is reduced; a feasible reverse compression screw hole is added, so that the length of the clavicle can be finely adjusted, and resetting and fixing are facilitated.

Description

Technical Field

[0001] The utility model belongs to the field of medical devices, and particularly relates to a clavicle full-length anatomical steel plate. Background Art

[0002] The clavicle is the connecting bone between the upper limb and the trunk, presenting an "S" shape. Clavicle fractures are common shoulder fractures in orthopedic clinics, accounting for about 5% of all body fractures, and middle clavicle fractures are the most common. Existing literature shows that postoperative dysfunction of clavicle fractures is mainly related to the loss of clavicle length; the surgical treatment of clavicle fractures that fixes the clavicle and restores its length has been gradually accepted by both doctors and patients. The most traditional clinical treatment method for middle clavicle fractures is open reduction and internal fixation with plate and screws. Conventional open reduction will excessively strip the tissues around the fracture end, damage the blood supply of the fracture end, increase the chance of nonunion after surgery, and the incision is large, and a large scar will be formed after surgery, affecting aesthetics; in recent years, the minimally invasive percutaneous locked plate internal fixation technique (Mippo) has a relatively small incision and less damage to the blood supply of the fracture end, and has gradually been adopted clinically. However, the above surgical methods are all extremely likely to cause supraclavicular nerve injury, and postoperative sensory disorders of the skin on the affected side of the shoulder and upper chest are likely to occur, which is not conducive to the healing of the fracture end and the wound in the later stage. Existing literature shows that there is an absolute safe area of the supraclavicular nerve about 2 cm in size at both ends of the clavicle. Therefore, if the minimally invasive percutaneous locked plate internal fixation technique (Mippo) can be used to fix the clavicle at both ends, it can not only reduce the complications of supraclavicular nerve injury, but also take into account the advantages of less damage to the blood supply of the fracture end and a small surgical incision.

[0003] Existing clavicle locking plates mainly fix the clavicle by open reduction and plate and screw fixation to restore the stability of the clavicle. The traditional clavicle plates have more holes, and too many holes will affect the strength of the plate. In addition, since there is no plate designed according to the full length of the clavicle, it is difficult to fix the clavicle through incisions at both ends of the clavicle, and the possibility of supraclavicular nerve injury is relatively high, resulting in postoperative sensory disorders and bringing endless pain to patients. Summary of the Utility Model

[0004] In order to solve the above problems, the utility model designs a clavicle full-length anatomical steel plate, which uses an S-shaped steel plate that fits the growth structure of the clavicle as a fixing support, reduces the screw holes in the middle of the steel plate, increases the strength of the steel plate, and reduces the risk of steel plate fracture; by fixing at both ends of the clavicle and making incisions in the safe area of the supraclavicular nerve to fix, it avoids supraclavicular nerve injury, and at the same time takes into account the advantages of the minimally invasive percutaneous locked plate internal fixation technique (Mippo) with a relatively small incision and less damage to the blood supply of the fracture end.

[0005] In order to achieve the above technical purpose, the utility model is realized through the following technical solutions: a clavicle full-length anatomical steel plate, including an S-shaped steel plate;

[0006] The S-shaped steel plate fits the shape of the collarbone. At one end of the S-shaped steel plate, locking screw holes are linearly arranged. Between the locking screw holes, reverse pressure screw holes are provided. At the other end of the S-shaped steel plate, locking screw holes are arranged in central symmetry.

[0007] Further, a front side fixing plate is installed on the side of the reverse pressure screw hole, and front side screw holes are provided on the front side fixing plate;

[0008] Further, the reverse pressure screw hole has an inclined surface structure, and reverse pressure can be achieved through the cooperation of screws, which is convenient for fine-tuning the length of the collarbone during the operation.

[0009] The beneficial effects of the utility model:

[0010] Compared with the prior art, the utility model uses an S-shaped steel plate that better fits the growth of the human collarbone, reduces the screw holes in the middle of the steel plate, increases the strength of the steel plate, makes incisions in the safe area of the supraclavicular nerve at both ends of the collarbone, and implants steel plate screws through the minimally invasive percutaneous locking plate internal fixation technique (Mippo), which can reduce the damage to the supraclavicular nerve and the destruction of the blood supply at the fracture end; and a front side fixing structure is installed to increase the fixing strength at both ends of the collarbone. The design of the reverse pressure screw hole can achieve the effect of fine-tuning the length of the collarbone after fixation. Description of the Drawings

[0011] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments will be briefly introduced below.

[0012] Figure 1 is the overall structural schematic diagram of Embodiment 1 of the utility model;

[0013] Figure 2 is the partial structural sectional view of Embodiment 1 of the utility model;

[0014] In the drawings, the structural names represented by each reference numeral are:

[0015] 1-S-shaped steel plate, 2-locking screw hole, 3-reverse pressure screw hole, 4-front side fixing plate, 5-front side screw hole. Specific Embodiments

[0016] Next, the technical solutions in the embodiments of the utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all of the embodiments. In addition, the technical features involved in the following described embodiments can be combined with each other as long as they do not conflict with each other.

[0017] Embodiment 1

[0018] Refer toFigures 1 to 2 As shown, a full-length clavicle anatomical plate is proposed, including an S-shaped plate 1;

[0019] Two linearly arranged locking screw holes 2 are provided at the head end of the S-shaped plate 1, and a reverse compression screw hole 3 is provided between the two locking screw holes 2. Four centrally symmetrically arranged locking screw holes 2 are provided at the tail end of the S-shaped plate 1 from top to bottom, as Figure 1 ; The internal structure of the reverse compression screw hole 3 is as Figure 2 shown. When using screws to fix the S-shaped plate 1, as the screws enter, due to the existence of the inclined plane, a lateral force will act on the S-shaped plate 1. When fixing the patient's clavicle, the main steps are divided into two: 1. Treat the patient's clavicle fracture through surgery, make an "eight"-shaped oblique incision at both ends of the clavicle, select a steel plate of appropriate length, and insert the plate through the proximal end of the clavicle using minimally invasive percutaneous locking plate internal fixation technology (Mippo). Then, drill holes at the distal end (acromial end) of the clavicle, and the size and position of the drilled holes correspond to the locking screw holes 2 on the S-shaped plate 1. 2. Restore the length of the clavicle with a reduction forceps or by pulling the upper limb. Drill a hole at the reverse compression screw hole 3, implant a tension screw to fix the steel plate and press the steel plate tightly against the clavicle. As the screw enters, due to the existence of the inclined plane structure inside the reverse compression screw hole 3, the screw will move along the inclined plane towards the rear end of the S-shaped plate 1. At this time, the screw exerts a pressure on the clavicle, driving the clavicle to move, so as to achieve the purpose of fine-tuning the length of the clavicle; after the length of the clavicle is restored satisfactorily, then install the screws into the locking screw holes 2 at the front end of the S-shaped plate 1 and the side screw holes 5 of the front side fixing plate 4 to complete the clavicle fixation surgery.

[0020] The above-described preferred embodiments of the present invention disclosed are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification.

Claims

1. A full-length clavicle anatomical steel plate, comprising an S-shaped steel plate (1); characterized in that: The shape of the S-shaped steel plate (1) fits the shape of the clavicle, and linearly arranged locking screw holes (2) are provided at one end of the S-shaped steel plate (1), reverse pressure screw holes (3) are provided between the locking screw holes (2), and centrally symmetrically arranged locking screw holes (2) are provided at the other end of the S-shaped steel plate (1).

2. The full-length anatomical clavicle steel plate according to claim 1, characterized in that: A front fixing plate (4) is installed on the side of the reverse pressure screw hole (3), and a front screw hole (5) is formed on the front fixing plate (4).

3. The full-length anatomical clavicle steel plate according to claim 1, characterized in that: The reverse pressure screw hole (3) has an inclined surface structure, and the screw can be inserted into the steel plate to drive the clavicle to achieve fine adjustment through the cooperation of the screw.

Images