CN211704800U - Scapula fracture is with dissecting type hone lamella - Google Patents

Abstract

The utility model provides a scapula fracture is with dissection type hone lamella relates to coaptation board technical field. An anatomical bone plate for scapula fracture includes a plate body comprising: the first fixing plate can be attached to the scapular neck, at least three first fixing holes are formed in the first fixing plate, and the first fixing plate can be fixed on the scapular neck through screws penetrating through the first fixing holes; the second fixing plate can be attached to the outer edge of the scapula, a second fixing hole is formed in the second fixing plate, and the second fixing plate can be fixed to the outer edge of the scapula through screws penetrating through the second fixing hole. The utility model provides a bone lamella body can laminate fracture department completely, need not to mould the type in advance, need not the manual bending in the art, has practiced thrift operation time, has reduced the infection risk that the exposure time is long and arouse in the art, has improved operation security and success rate.

Description

An anatomical bone plate for scapula fracture

technical field

The utility model belongs to the technical field of bone plates, in particular to an anatomical bone plate for scapula fractures.

Background technique

In recent years, with the continuous development of medical technology, open reduction and internal fixation have been widely used in the treatment of scapula fractures, and have achieved good therapeutic effects. However, the scapula bone is flat, and the flat bone of the infraspinatus fossa is about 1mm-2mm thick. When a fracture occurs near the scapular neck and lateral border, screws can only be fixed on the relatively thick cortex of the scapular neck and lateral border of the scapula to meet the fixation requirements of the bone plate. For the fracture fixation of the scapula neck and lateral border, the commonly used internal fixation plate does not conform to the anatomical shape of the scapula, and the operator often needs to bend and shape the plate according to the shape of the scapula during the operation.

Manual bending can only make the reconstruction plate roughly adhere to the bone surface, and cannot fully conform to the anatomical shape of the scapula. It is easy to cause irritation of the surrounding soft tissue, increase the patient's pain, lead to malunion, and cause complications such as shoulder joint dysfunction or chronic pain. In addition, the intraoperative bending operation is complicated, prolonging the operation time, increasing the amount of bleeding and the risk of infection. In addition, the existing fixation plate can only fix two screws at the neck of the scapula, which makes the fracture fixation unreliable and increases the risk of fixation failure. Due to the incomplete fit between the plate and the scapular spine and the medial border of the scapula, the screw cannot be fixed to the thickened part of the bone, resulting in a weak screw holding force and increasing the risk of screw fixation and screw withdrawal. At the same time, the direction of the screw at the fixation plate is uncontrollable, and the risk of the screw entering the joint cavity of the scapular neck is high, which is easy to cause damage to the joint.

Utility model content

The problem to be solved by the utility model is to provide an anatomical bone plate for scapula fracture, which has a simple structure and a high degree of fit, and can effectively improve the fixation effect on the corresponding fracture position of the scapula.

In order to solve the above-mentioned technical problems, the technical scheme adopted by the present utility model is:

An anatomical bone plate for scapula fracture, comprising a bone plate body, the bone plate body comprising:

A first fixing plate, which can fit the neck of the scapula, the first fixing plate is provided with no less than three first fixing holes, and the first fixing plate can pass through the first fixing holes The screw is fixed on the neck of the scapula;

The second fixing plate can fit the outer edge of the scapula, the second fixing plate is provided with a second fixing hole, and the second fixing plate can be fixed to the second fixing plate through the screw passing through the second fixing hole. on the lateral border of the scapula.

As a preferred solution of the above-mentioned anatomical bone plate for scapula fracture, the second fixing plate further includes a third fixing hole, and the third fixing hole is a long pressure hole or a combination hole.

As a preferred solution of the above-mentioned anatomical bone plate for scapula fracture, the first fixing hole is a universal locking hole, a combining hole or a long pressing hole.

As a preferred solution of the above-mentioned anatomical bone plate for scapula fracture, the first fixing hole is a locking hole with a single axis, the axes of the plurality of first fixing holes are not parallel to each other, and the axes of the first fixing holes are not parallel to each other. through the articular cavity of the scapular neck.

As a preferred solution of the above-mentioned anatomical bone plate for scapula fracture, the second fixing hole is a universal locking hole, a combining hole or a long pressing hole.

As a preferred solution of the above-mentioned anatomical bone plate for scapula fracture, there are a plurality of the second fixing holes, and the plurality of the second fixing holes are arranged at intervals along the length direction of the second fixing plate.

As a preferred solution of the above-mentioned anatomical bone plate for scapula fracture, the third fixing hole is provided near the connection between the first fixing plate and the second fixing plate.

As a preferred solution of the above-mentioned anatomical bone plate for scapula fracture, the first fixing plate and the second fixing plate are integrally formed.

As a preferred solution of the above-mentioned anatomical bone plate for scapula fracture, the edge of the bone plate body is a rounded structure.

As a preferred solution of the above-mentioned anatomical bone plate for scapula fracture, the bone plate body is made of pure titanium or titanium alloy.

The advantages and positive effects that the utility model has are:

1. The bone plate of the present invention includes a first fixing plate that fits with the neck of the scapula and a second fixing plate that fits with the outer edge of the scapula, which can completely fit the fracture and protect the surrounding soft tissue. The bone plate does not need to be pre-shaped or manually bent during the operation, which saves the operation time, reduces the infection risk caused by the long exposure time during the operation, and improves the safety and success rate of the operation.

2. The bone plate of the present utility model is suitable for bone reduction and fixation of scapular neck fracture, scapula glenoid fracture, lateral edge fracture of scapula and transverse fracture of scapula body, with strong pertinence, avoiding the inconsistency between the shape of the bone plate and the bone and causing the fixation to be unstable. It has a high degree of fit and can reduce complex comminuted fractures with a wide range of applications.

3. The edge of the bone plate body of the present invention adopts a rounded design, and the thickness of the bone plate is relatively thin, which reduces the irritation of the soft tissue on the back of the scapula by the bone plate, which is beneficial to the recovery of the patient. The bone plate is made of titanium alloy material, which has good tissue compatibility and is close to the elastic modulus of human bones.

Description of drawings

FIG. 1 is a schematic diagram of the use state of the bone plate body according to the embodiment of the present invention.

Fig. 2 is a front view of a bone plate body according to an embodiment of the present invention.

FIG. 3 is a schematic diagram of one direction of the bone plate body according to the embodiment of the present invention.

FIG. 4 is a schematic diagram of another direction of the bone plate body according to the embodiment of the present invention.

In the picture:

1. Bone plate body; 11. First fixation plate; 111, First fixation hole; 12, Second fixation plate; 121, Second fixation hole; 122, Third fixation hole;

2. Scapular neck;

3. Lateral border of scapula.

Detailed ways

The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner" and "outer" The orientation or positional relationship indicated by etc. is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, with a specific orientation. Therefore, it should not be construed as a limitation on the present invention. Furthermore, the terms "first", "second", and "third" are used for descriptive purposes only and should not be construed to indicate or imply relative importance.

In the description of the present invention, it should be noted that, unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection or a connectable connection. Detachable connection, or integral connection; may be mechanical connection or electrical connection; may be direct connection, or indirect connection through an intermediate medium, or internal communication between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

Embodiments of the present utility model will be further described below in conjunction with the accompanying drawings:

This embodiment provides an anatomical bone plate for scapula fracture. The anatomical bone plate for scapula fracture includes a bone plate body 1. As shown in FIGS. 1-4 , the bone plate body 1 includes a first fixing plate 11 and a second fixing plate plate 12.

The first fixing plate 11 can fit the scapula neck 2 , the first fixing plate 11 is provided with no less than three first fixing holes 111 , and the first fixing plate 11 can pass the screws inserted in the first fixing holes 111 Fixed on scapular neck 2. Preferably, the number of the first fixing holes 111 is five. The first fixing hole 111 may be a universal locking hole, which is convenient for the doctor to select an appropriate direction to lock the screw according to the intraoperative situation.

In other embodiments, the first fixing hole 111 is a locking hole with a single axis. A thread is arranged in the hole of the locking hole, a locking screw is selected for the screw, and the head of the locking screw is provided with a thread, which can be threadedly connected with the locking hole. The axes of the plurality of first fixing holes 111 are not parallel to each other, and the axes of the first fixing holes 111 do not pass through the joint cavity of the scapula neck 2 . When screw fixation during the operation, it is preferable to place the screw in the thicker direction of the scapular neck 2 to enhance the holding force of the screw. Specifically, the plurality of first fixing holes 111 are divided into two rows along the width direction of the first fixing plate 11 . The first fixing hole 111 is a conical locking hole, and the first fixing plate 11 at the scapula neck 2 is fixed with five locking screws, which is beneficial to improve the fixing strength. Since the axes of the first fixing holes 111 do not pass through the joint cavity of the scapular neck 2, the locking screws are prevented from penetrating into the joint cavity of the scapular neck 2, thereby avoiding serious complications of iatrogenic joint injury.

In addition, the first fixing hole 111 can also be set as a long pressure hole, no thread is set in the hole of the pressure hole, and the screw is selected as a skin screw, which can pressurize the fixing plate and ensure the adhesion between the bone plate and the bone. The setting of the pressure hole allows the screw to be fine-tuned on the length of the long pressure hole, making the operation more flexible. The first fixing hole 111 may also be set as a combination hole in which the long pressing hole and the locking hole are combined. Different forms of bone plates can be selected according to the specific situation.

The second fixing plate 12 can fit the lateral edge 3 of the scapula. The second fixing plate 12 is provided with a second fixing hole 121 and a third fixing hole 122. The third fixing hole 122 is close to the first fixing plate 11 and the second fixing plate 12. Connection settings. The second fixing plate 12 can be fixed on the lateral edge 3 of the scapula by screws passing through the second fixing hole 121 and the third fixing hole 122 .

There are a plurality of second fixing holes 121 , and the plurality of second fixing holes 121 are arranged at intervals along the length direction of the second fixing plate 12 in sequence. The plurality of second fixing holes 121 are all universal locking holes or locking holes with a single axis. When the second fixing hole 121 is a locking hole with a single axis, the axis of the second fixing hole 121 is preferably set along the thicker direction of the lateral edge 3 of the scapula, which enhances the holding force of the screw and is beneficial for enhancing the strength of the second fixing plate 12 . Fixed effect. When the second fixing hole 121 is a universal locking hole, the doctor can choose the direction when placing the nail, which is more flexible, which is convenient for the doctor to operate.

The second fixing hole 121 may also be a long pressing hole or a combining hole. The specific form of the second fixing hole 121 can be selected by the doctor according to the specific situation.

For the first fixation hole 111 and the second fixation hole 121, a longer screw can be selected during the operation to increase the amount of screw insertion at the scapula neck 2 and the lateral edge of the scapula 3, which is beneficial to enhance the holding effect of the screw on the scapula .

The third fixing hole 122 is a waist-shaped hole, and its length direction is the same as the length direction of the bone plate body 1. Specifically, the third fixing hole 122 is a long pressure hole or a combination hole, so as to ensure that the bone plate body 1 is tightly connected to the fracture. fit. There is at least one third fixing hole 122, and the specific number can be increased according to the situation.

The first fixation plate 11 and the second fixation plate 12 are integrally formed, and the length of the bone plate body 1 ranges from 40mm to 130mm, preferably 45mm, 50mm, 55mm, 60mm, 65mm, 70mm, 75mm, 80mm, 85mm, 90mm, 95mm, 100mm , 105mm, 110mm, 115mm, 120mm or 125mm, which can be selected according to specific needs.

In other embodiments, the first fixation plate 11 and the second fixation plate 12 may also be provided as separate bodies, and the first fixation plate 11 and the second fixation plate 12 respectively perform an internal fixation operation on the fractured position of the scapula.

In this embodiment, the thickness of the bone plate body 1 ranges from 1.3mm to 2.5mm, and specifically, it can be selected to be 1.5mm, 1.8mm, 2.0mm or 2.3mm. The bone plate body 1 is formed by casting pure titanium or titanium alloy. Pure titanium or titanium alloy material has good histocompatibility, and is close to the elastic modulus of human bones, and has less reaction, which is beneficial to the recovery and activity of the patient's body.

In this embodiment, the edge of the bone plate body 1 is a rounded structure. Specifically, the side of the bone plate body 1 that is not in contact with the scapula and the side surface of the bone plate body 1 are transitioned through a rounded structure, so as to reduce the pair of bone plate body 1. Soft tissue irritation on the side of the scapula.

The bone plate body 1 is suitable for bone reduction and fixation of scapular glenoid fractures, scapular neck fractures, lateral scapula fractures and transverse scapular body fractures. The fit of the bone plate body 1 and the scapula can reduce complex comminuted fractures according to the shape of the bone plate.

The working principle of the utility model is:

When using the bone plate body 1, the first fixing plate 11 is attached and fixed to the scapula neck 2, and the second fixing plate 12 is attached and fixed to the outer edge of the scapula 3; the first fixing plate 11 and the second fixing plate 12 are integral curved surfaces , and fix the bone plate body 1 on the fractured position of the scapula through screws, so as to realize the fixation of the scapula.

An embodiment of the present invention has been described in detail above, but the content is only a preferred embodiment of the present invention, and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made according to the scope of the application of the present utility model should still belong to the scope of the patent of the present utility model.

Claims (10)

1. An anatomical bone plate for scapula fracture, which is characterized in that: comprising a bone plate body, the bone plate body comprising:

the first fixing plate can be attached to the scapular neck, at least three first fixing holes are formed in the first fixing plate, and the first fixing plate can be fixed on the scapular neck through screws penetrating through the first fixing holes;

the second fixing plate can be attached to the outer edge of the scapula, a second fixing hole is formed in the second fixing plate, and the second fixing plate can be fixed to the outer edge of the scapula through screws penetrating through the second fixing hole.

2. The anatomical bone plate for scapula fracture according to claim 1, wherein: the second fixing plate further comprises a third fixing hole, and the third fixing hole is a long pressurizing hole or a combining hole.

3. The anatomical bone plate for scapula fracture according to claim 1, wherein: the first fixing hole is a universal locking hole, a combining hole or a long pressurizing hole.

4. The anatomical bone plate for scapula fracture according to claim 1, wherein: the first fixing hole is a locking hole with a single axis, the axes of the first fixing holes are not parallel to each other, and the axis of the first fixing hole does not pass through a joint cavity of the scapula neck.

5. The anatomical bone plate for scapula fracture according to any one of claims 1 to 4, wherein: the second fixing hole is a universal locking hole, a combining hole or a long pressurizing hole.

6. The anatomical bone plate for scapula fracture according to claim 5, wherein: the second fixing holes are arranged in sequence at intervals along the length direction of the second fixing plate.

7. The anatomical bone plate for scapula fracture according to claim 2, wherein: the third fixing hole is arranged close to the joint of the first fixing plate and the second fixing plate.

8. The anatomical bone plate for scapula fracture according to any one of claims 1 to 4, wherein: the first fixing plate and the second fixing plate are integrally formed.

9. The anatomical bone plate for scapula fracture according to any one of claims 1 to 4, wherein: the edge of the bone plate body is of a round angle structure.

10. The anatomical bone plate for scapula fracture according to any one of claims 1 to 4, wherein: the bone plate body is made of pure titanium or titanium alloy.

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