Clavicle far-end fracture suturing steel plate

Abstract

The utility model belongs to the technical field of medical instruments, and particularly relates to a distal clavicle fracture suturing steel plate. The distal clavicle fracture suturing steel plate comprises a near-end part and a far-end part which are integrally arranged, a first screw fixing hole site and a second screw fixing hole site are formed in the near end part, and a third screw fixing hole site is formed in the far end part; suture holes are formed in the near-end part and the far-end part. And a suture penetrating through the suture hole site farthest from the near end part on the far end part can bypass the acromion to fix the steel plate and the acromion at the same height, so that the acromioclavicular ligament is reinforced, and the steel plate and a fracture block are prevented from moving upwards and backwards.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical devices, and in particular relates to a suture steel plate for distal clavicle fractures. Background Art

[0002] Distal clavicle fracture refers to a fracture that occurs in the distal third of the clavicle. The coracoclavicular ligament connects the coracoid process and the distal end of the clavicle. The coracoclavicular ligament consists of two parts: the conoid ligament on the inside and the trapezoid ligament on the outside. It is an important stabilizing structure of the distal clavicle. In the early days, Neer divided distal clavicle fractures into three subtypes based on the location of the fracture and the damage to the coracoclavicular ligament. Type I: The fracture occurs between the conoid ligament and the trapezoid ligament, or on the outside of the conoid ligament and the trapezoid ligament. The ligament structure remains intact and the fracture is slightly displaced; Type II includes Type IIA (the fracture occurs on the inside of the conoid ligament and the trapezoid ligament, the ligament is still connected to the distal end, and the proximal end may be significantly displaced) and Type IIB (the conoid ligament is torn, the trapezoid ligament is attached to the distal end, and there may be obvious displacement between the fracture fragments; Type III refers to the fracture involving the distal articular surface of the clavicle, usually without obvious displacement. Type I and Type III fractures are relatively stable and are usually treated conservatively. Type IIA and IIB fractures are unstable because of their poor quality of life. Surgical treatment is often required for type IIA fractures. Conventional distal clavicle anatomical plates can achieve good fixation stability due to the large bone fragments at the distal end of the fracture. However, type IIB fractures have a smaller distal fracture end, and screws often cannot achieve stable fixation. In addition, due to the rupture of the conoid ligament, the proximal fracture end is subject to large upward and backward displacement stress under the traction of the upper muscles. Simple plate and screw fixation has a high failure rate, which is a difficult point in treatment. Recent studies have further found that distal clavicle fractures can be combined with more complex ligament injuries, such as combined injuries to the conoid ligament, trapezoid ligament, and even acromioclavicular ligament.

[0003] The current treatment methods for distal clavicle fractures combined with conoid ligament / trapezoidal ligament injuries mainly include: hook plate fixation and distal clavicle anatomical plate fixation, both of which can be used alone or in combination with anchor suture fixation.

[0004] Hook plate fixation uses screws to fix the proximal end of the plate to the proximal end of the clavicle. The L-shaped hook structure on the outside of the plate is hooked under the acromion on the outside of the clavicle. The acromion bone blocks the risk of the plate and the proximal end shifting upward and backward due to the traction of the muscles above the clavicle. However, due to the continuous compressive stress on the acromion caused by the hook structure of the posterolateral plate fixation, complications such as shoulder pain, acromion impingement, acromion osteolysis, and acromion stress fracture are prone to occur after surgery, resulting in a gradual reduction in its application.

[0005] The distal clavicle anatomical plate achieves stability by fixing the proximal and distal ends with screws. However, in distal clavicle fractures that require surgical treatment, the distal fracture fragments are often relatively small, and the stability of screw fixation is poor, which is easy to be pulled out, resulting in fixation failure. In order to enhance the stability of the distal clavicle anatomical plate fixation, some scholars have studied the placement of anchors on the coracoid process, first suturing and fixing the proximal clavicle with anchor sutures to resist the muscle pulling stress that causes it to shift upward, and then performing distal clavicle plate fixation. However, since anchor fixation is used separately from plate fixation, there is a risk of damaging the anchor sutures during plate screw fixation, resulting in anchor fixation failure. The proximal end anchor reinforcement has limited improvement in the stability of the distal plate fixation, and this method can often only be used to enhance the conical ligament, and cannot be used to enhance the stability of the trapezoidal ligament and the acromioclavicular ligament. Moreover, when the distal fracture is comminuted, it is even more impossible to perform screw fixation, so hook plate fixation is forced. Utility Model Content

[0006] The utility model aims to provide a suture steel plate for distal clavicle fractures, so as to solve the problem in the prior art that anchor fixation and steel plate fixation are used separately, and there is a risk of anchor fixation failure due to damage to the anchor suture during steel plate screw fixation.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A clavicle distal fracture suture steel plate, comprising a proximal portion and a distal portion which are integrally arranged; the proximal portion is provided with a first screw fixing hole and a second screw fixing hole, and the distal portion is provided with a third screw fixing hole;

[0009] Suture holes are arranged on the proximal end and the distal end.

[0010] Specifically, the first screw fixing hole is a combination hole of a common screw and a locking screw.

[0011] Specifically, the common screw and locking screw combining hole includes a common screw hole and a locking screw hole that are connected.

[0012] Specifically, the common screw hole and the locking screw hole are fixing holes adapted for 3.5 mm common screws and locking nails respectively.

[0013] Specifically, the third screw fixing hole is a locking nail hole that adapts to a 2.7 mm locking nail.

[0014] Specifically, the second screw fixing hole is a locking hole for a 3.5 mm locking nail.

[0015] Specifically, the suture hole is an arc-shaped hole, and the arc-shaped hole is arranged from the first surface to the second surface of the distal clavicle fracture suture steel plate.

[0016] Specifically, every two of the third screw fixing holes are adjacent to each other as a group, and every two of the suture holes are adjacent to each other as a group;

[0017] From the distal end to the proximal end of the clavicle distal fracture suture plate, there are arranged in sequence: a group of suture holes, a group of third screw fixing holes, a group of suture holes, a group of third screw fixing holes, a group of suture holes, a second screw fixing hole, a group of suture holes, and two first screw fixing holes.

[0018] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0019] The utility model provides a clavicle distal fracture suture steel plate, comprising a proximal portion and a distal portion which are integrally arranged; a first screw fixing hole and a second screw fixing hole are arranged on the proximal portion, and a third screw fixing hole is arranged on the distal portion; suture holes are arranged on both the proximal portion and the distal portion. The suture passing through the suture hole on the distal portion which is farthest from the proximal portion can bypass the acromion, fix the steel plate and the acromion at the same height, strengthen the acromioclavicular ligament, and prevent the steel plate and the fracture fragment from shifting upward and backward.

[0020] The sutures passing through the suture holes adjacent to the suture holes farthest from the proximal portion on the distal portion fix the steel plate to the fracture fragment; the sutures in the last group of suture holes on the distal portion can fix the steel plate to the coracoid process, similar to reconstruction of the lateral trapezoidal ligament; the sutures passing through the suture holes on the proximal portion can fix the steel plate to the coracoid process, similar to reconstruction of the conical ligament. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0022] Figure 1 This is a schematic structural diagram of a distal clavicle fracture suture steel plate according to an embodiment of the utility model;

[0023] Figure 2 This is a schematic diagram of the first side of a distal clavicle fracture suture steel plate according to an embodiment of the utility model;

[0024] Figure 3 This is a schematic diagram of the second side of a distal clavicle fracture suture steel plate according to an embodiment of the utility model;

[0025] Figure 4 This is a schematic diagram of the structure of the suture hole in the embodiment of the utility model;

[0026] Among them: 1, proximal part; 11, first screw fixing hole; 111, ordinary screw hole; 112, locking screw hole; 12, second screw fixing hole; 2, distal part; 21, third screw fixing hole; 3, suture hole. DETAILED DESCRIPTION

[0027] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other without conflict.

[0028] The following detailed descriptions are all exemplary descriptions, and are intended to provide further detailed descriptions of the present invention. Unless otherwise specified, all technical terms used in the present invention have the same meanings as those generally understood by those skilled in the art to which the present application belongs. The terms used in the present invention are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present invention.

[0029] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] like Figure 1 to Figure 4As shown, an embodiment of the utility model provides a distal clavicle fracture suture plate, comprising a proximal portion 1 and a distal portion 2 which are integrally arranged; the proximal portion 1 is provided with a first screw fixing hole 11 and a second screw fixing hole 12, and the distal portion 2 is provided with a third screw fixing hole 21; both the proximal portion 1 and the distal portion 2 are provided with suture holes 3.

[0031] Through the above arrangement, the suture hole 3 on the distal end 2 which is farthest from the proximal end 1 can allow the suture passing through it to bypass the acromion and fix the steel plate and the acromion at the same height, strengthen the acromioclavicular ligament, and prevent the steel plate and the fracture fragment from shifting upward and backward.

[0032] The suture holes adjacent to the suture holes on the distal portion 2 that are farthest from the proximal portion 1, through which the sutures pass, fix the steel plate and the fracture fragment together;

[0033] The sutures in the last set of suture holes on the distal end 2 can fix the plate to the coracoid process, similar to the reconstruction of the lateral trapezoidal ligament;

[0034] The sutures passed through the suture holes on the proximal portion 1 can fix the plate to the coracoid process, similar to the reconstruction of the conoid ligament.

[0035] The distal clavicle fracture suture plate provided in this scheme has an overall appearance similar to that of the distal clavicle anatomical plate (with reference to the morphology of the distal clavicle bone surface), but the depressions on both sides of the plate are removed to reduce the elastic modulus and avoid stress shielding.

[0036] like Figure 1 As shown, the first screw fixing hole 11 is a common screw and locking screw combination hole. Specifically, the common screw and locking screw combination hole includes a common screw hole 111 and a locking screw hole 112 that are connected. The first screw fixing hole adopts the design of a common screw and locking screw combination hole, which provides greater flexibility. The doctor can choose to use a common screw or a locking screw according to the specific situation of the patient.

[0037] As a specific example of this solution, the common screw hole 111 and the locking screw hole 112 are fixing holes adapted to 3.5 mm common screws and locking nails, respectively. The third screw fixing hole 21 is a locking hole adapted to 2.7 mm locking nails. The third screw fixing hole at the distal end adopts a uniform diameter design, which helps to simplify the surgical operation and improve the surgical efficiency. The second screw fixing hole 12 is a locking nail hole for 3.5 mm locking nails. The diameter of the suture hole 3 is 2.0 mm.

[0038] like Figure 1As shown, as an example of the present scheme, every two third screw fixing holes 21 are adjacent side by side as a group, and every two suture holes 3 are adjacent side by side as a group; from the proximal end 1 to the distal end 2 of the clavicle distal fracture suture plate, there are arranged in sequence: a group of suture holes 3, a group of third screw fixing holes 21, a group of suture holes 3, a group of third screw fixing holes 21, a group of suture holes 3, a second screw fixing hole 12, a group of suture holes 3, and two first screw fixing holes 11.

[0039] Through the above settings, this solution designs a third screw fixing hole 21 with four 2.7mm locking screws on the distal end 2, and designs a 2.0mm diameter hole that passes through the steel plate in an arc shape from back to front. The hole is used for sutures to pass through to fix the steel plate to the acromion, distal clavicle fracture fragment, and coracoid process.

[0040] like Figure 4 As shown, the suture hole 3 is an arc-shaped channel, and the arc-shaped channel is arranged from the first surface to the second surface of the clavicle distal fracture suture steel plate. Specifically, the spacing between the two suture holes 3 in the same group on the first surface is small, and the spacing between the two suture holes 3 in the same group on the second surface is large, and the channel between the two ends of the same suture hole 3 is an arc-shaped channel, and the arc is bent toward the two sides of the steel plate, so as to facilitate the passage of the suture.

[0041] The suture holes are distributed in multiple locations of the steel plate. Through different suture fixation methods, the steel plate can be fixed to the acromion, distal clavicle fracture fragment, and coracoid process. In particular, the design of the arc-shaped hole not only facilitates the passage of sutures, but also provides greater fixation strength to ensure the stability of the steel plate during fixation.

[0042] The overall shape of this solution is similar to that of the anatomical plate. The overall shape of the plate refers to the shape of the distal clavicle bone surface, which enables the plate to better fit the distal clavicle and reduce discomfort and complications during surgery. At the same time, the removal of the depressions on both sides of the plate also helps to improve the stability and strength of the plate.

[0043] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0044] It is known from common technical knowledge that the present invention can be implemented by other embodiments that do not deviate from its spirit or essential features. Therefore, the embodiments disclosed above are only illustrative in all respects and are not exclusive. All changes within the scope of the present invention or within the scope equivalent to the present invention are included in the present invention.

Claims

1. A distal clavicle fracture suture plate, characterized in that: It comprises a proximal portion (1) and a distal portion (2) which are integrally arranged; The proximal portion (1) is provided with a first screw fixing hole (11) and a second screw fixing hole (12), and the distal portion (2) is provided with a third screw fixing hole (21); Suture holes (3) are provided on both the proximal end (1) and the distal end (2).

2. The distal clavicle fracture suture steel plate according to claim 1, characterized in that: The first screw fixing hole (11) is a combination hole of a common screw and a locking screw.

3. The distal clavicle fracture suture steel plate according to claim 2, characterized in that: The common screw and locking screw combination hole comprises a common screw hole (111) and a locking screw hole (112) which are connected.

4. The distal clavicle fracture suture steel plate according to claim 3, characterized in that: The common screw hole (111) and the locking screw hole (112) are fixing holes adapted for 3.5 mm common screws and locking nails respectively.

5. The distal clavicle fracture suture steel plate according to claim 1, characterized in that: The third screw fixing hole (21) is a locking nail hole adapted for a 2.7 mm locking nail.

6. The distal clavicle fracture suture steel plate according to claim 1, characterized in that: The second screw fixing hole (12) is a locking hole for a 3.5 mm locking nail.

7. The distal clavicle fracture suture steel plate according to claim 1, characterized in that: The suture hole (3) is an arc-shaped hole, and the arc-shaped hole is arranged from the first surface to the second surface of the clavicle distal fracture suture steel plate.

8. The distal clavicle fracture suture steel plate according to claim 1, characterized in that: Every two of the third screw fixing holes (21) are arranged side by side and form a group, and every two of the suture holes (3) are arranged side by side and form a group; The distal end of the clavicle fracture suture plate is provided with the following components in sequence from the distal end (2) to the proximal end (1): a group of suture holes (3), a group of third screw fixing holes (21), a group of suture holes (3), a group of third screw fixing holes (21), a group of suture holes (3), a second screw fixing hole (12), a group of suture holes (3), and two first screw fixing holes (11).

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