CN219207243U

CN219207243U - Annular internal fixing device

Info

Publication number: CN219207243U
Application number: CN202222608393.7U
Authority: CN
Inventors: 赵际童; 骆园; 曹晓东
Original assignee: FIRST PEOPLE'S HOSPITAL OF TAICANG
Current assignee: FIRST PEOPLE'S HOSPITAL OF TAICANG
Priority date: 2022-09-30
Filing date: 2022-09-30
Publication date: 2023-06-20
Anticipated expiration: 2032-09-30

Abstract

The utility model discloses an annular internal fixing device which comprises a group of embracing devices, a group of guiding devices, a group of fixing screws and connecting rods, wherein the embracing devices are arranged on two sides of a bone fracture part in a pairwise matching manner and are fixedly connected with bones through the fixing screws, the guiding devices are arranged on the outer sides of the embracing devices and are connected with the embracing devices in a matching manner, the connecting rods are arranged parallel to the bones, two ends of the connecting rods are positioned in the embracing devices, and the connecting rods are fixedly connected with the embracing devices through the fixing screws; the embracing device comprises a semicircular ring, a group of connecting holes and a group of fixing holes. The utility model has simple structure, reasonable design and easy operation, can stably fix the tubular bone, has good fixing effect on common fracture and crushed fracture, has strong applicability, reduces the difficulty of operation and effectively reduces the defect of free bone blocks.

Description

Annular internal fixing device

Technical Field

The utility model belongs to the field of medical instruments, and particularly relates to an annular internal fixing device.

Background

In daily orthopedics treatment, tubular bone fracture of limbs is a comparatively common disease, and for internal fixation devices such as present steel plate screw, tubular bone fracture of limbs especially smash the fracture, and the doctor is difficult to fix less free bone piece in actual operation, often just one face is fixed, and under this condition, the operation lacks a firm three-dimensional annular fixation to smashing the fracture, appears the free bone piece easily and lacks the problem such as firm fixation. Meanwhile, the traditional internal fixing device has large stripping to soft tissues such as muscles and the like, and is easy to damage important blood vessels, nerves and the like. Thus, there is currently a lack of an annular three-dimensional fixation device capable of stably fixing crushed bone pieces of limbs.

Disclosure of Invention

The utility model aims to: in order to overcome the defects, the utility model aims to provide the annular internal fixing device which is simple in structure, reasonable in design, easy to operate, good in fixing effect, strong in applicability, low in operation difficulty and capable of reducing the defects of free bone blocks.

The technical scheme is as follows: in order to achieve the above purpose, the utility model provides an annular internal fixing device, which comprises a group of embracing devices, a group of guiding devices, a group of fixing screws and connecting rods, wherein the embracing devices are arranged on two sides of a bone fracture part in a pairwise matching way and are fixedly connected with bones through the fixing screws, the guiding devices are arranged on the outer sides of the embracing devices and are in matched connection with the embracing devices, the connecting rods are arranged parallel to the bones, two ends of the connecting rods are positioned in the embracing devices, and the connecting rods are fixedly connected with the embracing devices through the fixing screws;

the device comprises a ring body, a plurality of connecting holes and a plurality of fixing holes, wherein the ring body comprises a semicircular ring, a plurality of connecting holes and a plurality of fixing holes, the connecting holes are formed in the end face of the semicircular ring at intervals, the fixing holes are formed in the side face of the semicircular ring at intervals, two ends of each connecting rod are located in the corresponding connecting holes, and the semicircular ring, the connecting rods and bones are fixedly connected through the fixing holes by fixing screws. The utility model has simple structure, reasonable design and easy operation, can stably fix the tubular bone, has good fixing effect on common fracture and crushed fracture, has strong applicability, reduces the difficulty of operation and effectively reduces the defect of free bone blocks.

Further, the semicircular ring is further provided with a clamping block and a slot, the clamping block is arranged at one end of the semicircular ring, the slot is arranged at one end of the semicircular ring away from the clamping block, and the semicircular ring, the clamping block and the slot are integrally formed. The fixture block and the slot enable the semicircular ring to be matched and installed better, and the convenience of using the device and the stability of connection are improved.

Further, the guiding device comprises an arc-shaped plate, a guiding hole and a guiding column, wherein the arc-shaped plate is semicircular, the guiding hole is arranged on the arc-shaped plate at intervals, the guiding column is arranged on the inner side of the arc-shaped plate and is positioned on one side of the guiding hole, the guiding column is fixedly connected with the arc-shaped plate, and the guiding hole, the guiding column and the fixing hole are matched. The guide device enables the fixing screw to be accurately installed in the fixing hole, prevents the fixing screw from deviating from the installation position, improves the fixing accuracy and reduces the operation difficulty.

Further, protruding portions are arranged on the semicircular ring, the protruding portions are arranged on the semicircular ring at intervals, and the connecting holes are located in the protruding portions. The bellying is convenient for install the connective bar, and the simple operation makes the device more stable.

Further, the top of the fixing hole is provided with a groove, and the top of the fixing screw is arranged in the groove. The groove can reduce the protruding degree of the fixing screw and reduce the damage of the device to human bodies.

Furthermore, steps are arranged at two ends of the arc-shaped plates, and the arc-shaped plates are installed in a matched mode through the steps. The guiding device is matched through steps, and is fixed by means of the temporary fixing needle, so that subsequent final fixing is facilitated.

Further, the guide post external diameter matches with the recess external diameter, and its internal diameter matches with the diameter of set screw top. The guide post is convenient for the fixing screw to install on the embracing device, improves the convenience and accuracy of the device, saves the operation time and improves the operation efficiency.

Furthermore, the number of the embracing device, the guide device and the connecting rods can be multiple, and the connecting rods are arranged in parallel. The stability of the fixed effect of connective bar can be guaranteed to parallel arrangement.

The technical scheme can be seen that the utility model has the following beneficial effects:

1. the annular internal fixing device provided by the utility model has the advantages of simple structure, reasonable design, easiness in operation, capability of stably fixing tubular bones, good fixing effect on common fractures and crushed fractures, strong applicability, reduction of operation difficulty and effective reduction of free bone block defects.

2. According to the annular internal fixing device provided by the utility model, the clamping blocks and the slots enable the semicircular rings to be matched and installed better, so that the convenience of using the device and the stability of connection are improved. The bellying is convenient for install the connective bar, and the simple operation makes the device more stable. The groove can reduce the protruding degree of the fixing screw and reduce the damage of the device to human bodies.

3. According to the annular internal fixing device provided by the utility model, the fixing screw is accurately installed in the fixing hole by the guide device, so that the deviation of the installation position of the fixing screw is prevented, the fixing accuracy is improved, and the operation difficulty is reduced. The guiding device is matched through steps, and is fixed by means of the temporary fixing needle, so that subsequent final fixing is facilitated. The guide post is convenient for the fixing screw to install on the embracing device, improves the convenience and accuracy of the device, saves the operation time and improves the operation efficiency.

Drawings

FIG. 1 is a schematic view of the structure of an annular internal fixation device according to the present utility model;

FIG. 2 is a schematic view of a hugger of the ring-shaped internal fixation device of the present utility model;

FIG. 3 is a schematic view of a guide for an annular internal fixation device according to the present utility model;

FIG. 4 is a view showing the completion of the installation of the ring-shaped internal fixation device according to the present utility model;

in the figure: the device comprises a surrounding device 1, a guiding device 2, a fixing screw 3, a connecting rod 4, a semicircular ring 10, a connecting hole 11, a fixing hole 12, a clamping block 13, a slot 14, a protruding part 15, an arc-shaped plate 20, a guiding hole 21 and a guiding column 22.

Detailed Description

The utility model is further elucidated below in connection with the drawings and the specific embodiments.

Examples

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more, unless otherwise clearly defined.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

Example 1

As shown in fig. 1-4, an annular internal fixing device in this embodiment includes a set of embracing devices 1, a set of guiding devices 2, a set of fixing screws 3 and connecting rods 4, wherein the embracing devices 1 are mounted on two sides of a bone fracture in a pairwise matching manner, and are fixedly connected with the bone through the fixing screws 3, the guiding devices 2 are arranged on the outer side of the embracing devices 1 and are cooperatively connected with the embracing devices 1, the connecting rods 4 are parallel to the bone, two ends of the connecting rods 4 are located in the embracing devices 1, and the connecting rods 4 are fixedly connected with the embracing devices 1 through the fixing screws 3;

the embracing device 1 comprises a semicircular ring 10, a group of connecting holes 11 and a group of fixing holes 12, the connecting holes 11 are formed in the end face of the semicircular ring 10 at intervals, the fixing holes 12 are formed in the side face of the semicircular ring 10 at intervals, two ends of a connecting rod 4 are located in the connecting holes 11, and the semicircular ring 10, the connecting rod 4 and bones are fixedly connected through the fixing holes 12 by fixing screws 3.

In this embodiment, the semicircular ring 10 is further provided with a clamping block 13 and a slot 14, the clamping block 13 is disposed at one end of the semicircular ring 10, the slot 14 is disposed at one end of the semicircular ring 10 away from the clamping block 13, and the semicircular ring 10, the clamping block 13 and the slot 14 are integrally formed.

In this embodiment, the guiding device 2 includes an arc 20, a guiding hole 21, and a guiding post 22, where the arc 20 is semicircular, the guiding hole 21 is disposed on the arc 20 at intervals, the guiding post 22 is disposed on the inner side of the arc 20 and on one side of the guiding hole 21, the guiding post 22 is fixedly connected with the arc 20, and the guiding hole 21, the guiding post 22 are matched with the fixing hole 12.

Example 2

In this embodiment, on the basis of embodiment 1, the semicircular ring 10 is provided with protruding portions 15, the protruding portions 15 are arranged on the semicircular ring 10 at intervals, and the connection holes 11 are located in the protruding portions 15.

In this embodiment, a groove is formed at the top of the fixing hole 12, and the top of the fixing screw 3 is installed in the groove.

In this embodiment, steps are disposed at two ends of the arc-shaped plate 20, and the arc-shaped plates 20 are mounted in a matched manner through the steps.

In this embodiment, the outer diameter of the guiding stud 22 is matched with the outer diameter of the groove, and the inner diameter thereof is matched with the top diameter of the fixing screw 3.

In this embodiment, the number of the embracing device 1, the guiding device 2 and the connecting rods 4 may be multiple groups, and the connecting rods 4 are arranged in parallel.

When the utility model is used, for the treatment of common fracture, two groups of embracers 1 are arranged on two sides of the fracture in a matched manner, the embracers 1 are connected with each other through clamping blocks 13 and grooves 14 in a matched manner, then two groups of guide devices 2 are arranged on the outer sides of the embracers 1, then temporary fixation is carried out by using Kirschner wires, after all the embracers 1 and the guide devices 2 are temporarily fixed, connecting rods 4 are arranged at designated positions, two ends of each connecting rod 4 penetrate into connecting holes 11 on the embracers 1, then fixing screws 3 are arranged in the corresponding guide holes 21, the guide posts 22 are arranged, the embracers 1 and the connecting rods 4 are fixed on bones by rotating the fixing screws 3, after the fixation is completed, the temporarily fixed Kirschner wires are removed, the guide devices 2 are detached, and then the fixation of the fracture is completed; for the crushed fracture, as shown in fig. 4, a group of embracing devices 1 can be additionally arranged at the crushed fracture part, and the embracing devices 1 can fix the crushed bone to a certain extent to prevent the crushed bone from being dissociated.

The foregoing is merely a preferred embodiment of the utility model, and it should be noted that modifications could be made by those skilled in the art without departing from the principles of the utility model, which modifications would also be considered to be within the scope of the utility model.

Claims

1. An annular internal fixation device, characterized in that: the bone fracture fixing device comprises a group of embracing devices (1), a group of guiding devices (2), a group of fixing screws (3) and connecting rods (4), wherein the embracing devices (1) are installed on two sides of a bone fracture part in a pairwise matching mode and are fixedly connected with the bone through the fixing screws (3), the guiding devices (2) are arranged on the outer side of the embracing devices (1) and are connected with the embracing devices (1) in a matching mode, the connecting rods (4) are arranged parallel to the bone, two ends of the connecting rods are located in the embracing devices (1), and the connecting rods (4) are fixedly connected with the embracing devices (1) through the fixing screws (3);

the device comprises a ring body (1), a plurality of connecting holes (11) and a plurality of fixing holes (12), wherein the ring body (1) comprises a semicircular ring (10), the connecting holes (11) are formed in the end face of the semicircular ring (10) at intervals, the fixing holes (12) are formed in the side face of the semicircular ring (10) at intervals, two ends of each connecting rod (4) are located in the connecting holes (11), and the semicircular ring (10), the connecting rods (4) and bones are fixedly connected through the fixing holes (12) by the fixing screws (3).

2. The ring-shaped internal fixation device of claim 1, wherein: the semicircular ring (10) is further provided with a clamping block (13) and a slot (14), the clamping block (13) is arranged at one end of the semicircular ring (10), the slot (14) is arranged at one end, far away from the clamping block (13), of the semicircular ring (10), and the clamping block (13) and the slot (14) are integrally formed.

3. The ring-shaped internal fixation device of claim 1, wherein: the guide device is characterized in that the guide device (2) comprises an arc-shaped plate (20), guide holes (21) and guide columns (22), the arc-shaped plate (20) is semicircular, the guide holes (21) are formed in the arc-shaped plate (20) at intervals, the guide columns (22) are arranged on the inner side of the arc-shaped plate (20) and are located on one side of the guide holes (21), the guide columns (22) are fixedly connected with the arc-shaped plate (20), and the guide holes (21), the guide columns (22) are matched with the fixing holes (12).

4. The ring-shaped internal fixation device of claim 1, wherein: the semicircular ring (10) is provided with protruding portions (15), the protruding portions (15) are arranged on the semicircular ring (10) at intervals, and the connecting holes (11) are located in the protruding portions (15).

5. A ring-shaped internal fixation device according to claim 3, wherein: the top of the fixing hole (12) is provided with a groove, and the top of the fixing screw (3) is arranged in the groove.

6. A ring-shaped internal fixation device according to claim 3, wherein: steps are arranged at two ends of the arc-shaped plates (20), and the arc-shaped plates (20) are installed in a matched mode through the steps.

7. The ring-shaped internal fixation device of claim 5, wherein: the outer diameter of the guide post (22) is matched with the outer diameter of the groove, and the inner diameter of the guide post is matched with the top diameter of the fixing screw (3).

8. The ring-shaped internal fixation device of claim 1, wherein: the number of the embracing device (1), the guide device (2) and the connecting rods (4) can be multiple groups, and the connecting rods (4) are arranged in parallel.