CN209884307U

CN209884307U - Fixing plate for treatment of clavicle proximal fracture or sternoclavicular joint dislocation

Info

Publication number: CN209884307U
Application number: CN201920474459.3U
Authority: CN
Inventors: 魏瑞良
Original assignee: Gongan County Hospital Of Traditional Chinese Hospital
Current assignee: Gongan County Hospital Of Traditional Chinese Hospital
Priority date: 2019-04-10
Filing date: 2019-04-10
Publication date: 2020-01-03
Anticipated expiration: 2029-04-10

Abstract

The utility model relates to a fixing plate for the treatment of clavicle proximal fracture or sternoclavicular joint dislocation, which belongs to the technical field of medical instruments. The integrated sternum clavicle comprises a sternum handle part, a clavicle plate part, an S-shaped connecting part and a locking hole, wherein an included angle between the sternum handle part and the clavicle plate part in the horizontal direction is an obtuse angle, and the S-shaped connecting part is arranged between the sternum handle part and the clavicle plate part; the joints of the two ends of the S-shaped connecting part and the sternum handle part and the clavicle plate part are smooth circular arc transition; the sternum handle part and the clavicle plate part are both provided with locking holes, the clavicle plate part is provided with different plate lengths, and the bending shape of the plate length is the same as that of the clavicle along with the human body. The fixing plate for the treatment of clavicle proximal fracture or sternoclavicular joint dislocation has the advantages of simple structure, convenient implantation, firm and reliable fixation, capability of realizing micromotion between sternoclavicular joints, small wound and good stability. Solves the problem that the internal fixation method in the prior art limits the micro motion of the sternoclavicular joint in all directions and influences the linkage action of the shoulder joint.

Description

Fixing plate for treatment of clavicle proximal fracture or sternoclavicular joint dislocation

Technical Field

The utility model relates to a fixing plate for the treatment of clavicle proximal fracture or sternoclavicular joint dislocation, which belongs to the technical field of medical instruments.

Background

The sternoclavicular joint is the only joint between the upper limb and the trunk, is composed of the clavicle sternum end, the sternoclavicular notch and the first costal cartilage, and belongs to a saddle joint. The part forming the clavicle end of the sternoclavicular joint is a joint surface and is positioned on the expanded sternum end at the inner side end of the clavicle, the costochondral ligament pressure trace is arranged below the sternum end, and the expansion of the inner side end of the clavicle is called the sternum end. The joint capsule is attached to the periphery of the joint, the front and back surfaces are thin, the upper and lower surfaces are thick, the joint capsule is tough, and ligaments are arranged around the joint capsule for reinforcement. The sternoclavicular joint can do micromotion motion in all directions, which is reflected by the lifting, descending and fore-and-aft motion of the outer side end of the clavicle, and in addition, can do slight rotation motion. Due to the particularity of the anatomical position and the lack of clinical experience, the treatment of the clavicle proximal fracture combined with the dislocation of the sternoclavicular joint becomes a great problem in the fracture surgery. The characteristics of the proximal clavicle fracture and the dislocation of the sternoclavicular joint are similar, and the problems of easy reduction and difficult alignment maintenance exist. In the prior art, a kirschner wire or a steel wire is mainly used for fixation, but the conditions of internal fixation loosening, wandering and poor stability after restoration often occur, and the method of internal fixation of a common fixing plate of a sternoclavicular joint limits the micro motion of each direction of the sternoclavicular joint, influences the linkage effect of a shoulder joint and is not beneficial to recovering the function of the sternoclavicular joint to the maximum extent. Therefore, it is necessary to develop a new internal fixation plate that can realize micro motion of the sternoclavicular joint in all directions.

Disclosure of Invention

An object of the utility model is to provide a fixed plate that is used for clavicle near-end fracture or sternoclavicular joint dislocation treatment that accords with the anatomical characteristics of national people's sternoclavicular joint, biomechanics characteristic is good, good curative effect, easy operation in the art, wound are little, can realize the joint stability that sternoclavicular joint can fine motion.

The utility model discloses a realize above-mentioned purpose through following technical scheme:

the utility model provides a fixed plate that is used for clavicle near-end fracture or chest clavicle joint dislocation treatment, is the integrated into one piece structure, and it comprises sternum stalk portion, clavicle board portion, S type connecting portion and locking hole, its characterized in that: the included angle A between the sternum handle part and the clavicle plate part in the horizontal direction is 120-150 degrees, and an S-shaped connecting part is arranged between the sternum handle part and the clavicle plate part; the S-shaped connecting part is formed by connecting a U-shaped part with an upward opening and a U-shaped part with a downward opening; the distance H between the top end and the bottom end of the S-shaped connecting part is 3.5-4.5 mm, and the length B of the S-shaped connecting part is 5 mm; the joints of the two ends of the S-shaped connecting part and the sternum handle part and the clavicle plate part are smooth circular arc transition; locking holes are made on the sternum handle part and the clavicle plate part.

The clavicle plate part is made into different plate lengths, the plate type is made into a straight shape and a bent shape, and the bent shape of the bent plate length is the same as the clavicle of the human body.

The locking hole divide into circular locking hole and kidney shape locking hole, sternum stalk portion make 4 circular locking holes, the front end of collarbone board make 4 circular locking holes, the rear end of collarbone board makes 3 ~ 5 kidney shape locking holes according to different plate lengths.

The locking holes are respectively matched with the locking screws and the cortical bone screws for use, wherein the round locking holes are matched with the small locking screws for use, and the waist-shaped locking holes are matched with the large locking screws and the cortical bone screws for use; the small locking screw is phi 2.7mm, the large locking screw is phi 3.5mm, and the cortical bone screw is phi 3.5 mm.

Concave notches with smooth edges are symmetrically manufactured on two sides of the fixing plate of the clavicle plate part, and the concave notches are distributed on two sides of the fixing plate between the locking holes.

Compared with the prior art, the utility model beneficial effect lie in:

this a fixed plate for clavicle near-end fracture or chest clavicle joint dislocation treatment, through S connecting portion can realize the fine motion between the chest clavicle joint, do not destroy the integrality of locker cortex to resume the joint stability that chest clavicle joint can fine motion, can also promote the restoration of ligament joint capsule around the chest clavicle joint, have simple structure, implant convenience, fixed firm reliable, the wound is little, the good advantage of stability.

Drawings

FIG. 1 is a schematic top view of a fixation plate for use in the treatment of a proximal clavicle fracture or a dislocation of the sternoclavicular joint;

FIG. 2 is a schematic side view of a fixation plate for use in the treatment of a proximal clavicle fracture or a sternoclavicular joint dislocation;

FIG. 3 is a schematic perspective view of a fixation plate for the treatment of a proximal clavicle fracture or a dislocation of the sternoclavicular joint;

FIG. 4 is a right side view of a fixation plate for the treatment of a proximal clavicle fracture or a sternoclavicular joint dislocation;

FIG. 5 is a schematic view of a waist-shaped locking hole of a fixation plate for the treatment of a proximal clavicle fracture or a dislocation of the sternoclavicular joint;

FIG. 6 is a schematic view of a waist-shaped locking hole of a fixation plate for the treatment of a proximal clavicle fracture or a dislocation of the sternoclavicular joint;

fig. 7 is a schematic view showing a state of use of a fixing plate for the treatment of a proximal clavicle fracture or a dislocation of the sternoclavicular joint.

In the figure: 1. the sternum comprises a sternum handle part, 2 parts of a clavicle plate, 3 parts of an S-shaped connecting part, 4-1 parts of a circular locking hole, 4-2 parts of a kidney-shaped locking hole, 5 parts of a concave notch, 6 parts of a locking screw, 6-1 parts of a small locking screw, 6-2 parts of a large locking screw, 7 parts of a sternum handle, 8 parts of a clavicle, 9 parts of a cortical bone screw.

Detailed Description

The fixing plate for the treatment of clavicle proximal fracture or sternoclavicular joint dislocation is of an integrally formed structure and comprises a sternum handle part 1, a clavicle plate part 2, an S-shaped connecting part 3 and a locking hole. An included angle A between the sternum handle part 1 and the clavicle plate part 2 in the horizontal direction is an obtuse angle, the included angle A is 120-150 degrees, and an S-shaped connecting part 3 is arranged between the sternum handle part 1 and the clavicle plate part 2; the S-shaped connecting part 3 is formed by connecting a U shape with an upward opening and a U shape with a downward opening, and the distance H between the top end and the bottom end of the S-shaped connecting part is 3.5-4.5 mm; the joints of the two ends of the S-shaped connecting part 3 and the sternum handle part 1 and the clavicle plate part 2 are smooth circular arc transition. The purpose of providing an S-shaped connection 3 between the sternum handle 1 and the clavicle plate 2 is to: the fixing plate has transverse micro-mobility and slight torsion in all directions, so that physiological micro-motion of the sternoclavicular joint can be kept in practical application, and repair of ligament joint capsules around the sternoclavicular joint is promoted. The locking holes are divided into circular locking holes 4-1 and kidney-shaped locking holes 4-2, 4 circular locking holes 4-1 are formed in the sternum handle part 1, 4 circular locking holes 4-1 are formed in the front end of the clavicle plate part 2, as shown in fig. 5 and 6, different plate lengths are formed in the rear end of the clavicle plate part 2 according to different lengths of the clavicle 8 of a human body, the plate type is formed into a straight shape and a bent shape, the bent shape of the bent plate length is the same as that of the clavicle 8 of the human body, and the plate type can be adjusted according to actual requirements, so that 3-5 kidney-shaped locking holes 4-2 are formed in the rear end of the clavicle plate part 2 according to different plate lengths; the locking holes are respectively matched with the locking screws 6 and the cortical bone screws 9 for use, wherein the round locking hole 4-1 is matched with the small locking screw 6-1 for use, and the waist-shaped locking hole 4-2 is matched with the large locking screw 6-2 and the cortical bone screws 9 for use; the specification of the small locking screw 6-1 is phi 2.7mm, the specification of the large locking screw 6-2 is phi 3.5mm, and the specification of the cortical bone screw 9 is phi 3.5 mm; concave notches 5 with smooth edges are symmetrically formed in two sides of the clavicle plate part 2, and the concave notches 5 are distributed on two sides of the fixing plate between the locking holes 4.

The fixing plate for the treatment of the clavicle proximal fracture or the sternoclavicular joint dislocation is made of pure titanium, the thickness of the fixing plate is 1mm, the length D of the sternum handle part 1 is 2.5cm, and the width is 1.5 cm; the length C of the clavicle plate part 2 is 3cm, and the width is 1.5 cm; the length B of the S-shaped connecting part 3 is 5mm, and the width is 1.5 cm; as shown in fig. 4, the fixing plate can be manufactured into two specifications which are symmetrical left and right, and is suitable for the sternoclavicular joints on the left and right sides of the human body; the corners around the fixing plate are all smooth arc transition, so that the fixing plate is in limited contact with a human body, and the compression of the fixing plate on the human body skeleton and the stimulation to tissues around the skeleton are reduced.

The fixing plate for the treatment of the fracture of the near end of the clavicle or the dislocation of the sternoclavicular joint is prepared from the following components in an embodiment:

firstly, taking the inner side end of a clavicle 8 of a patient to reach an arc incision in front of a sternum handle 7, incising skin and fascia tissues, carefully pushing away and protecting periosteum, exposing a sternoclavicular joint surface, and removing blood clots around a fracture or dislocated joint and fragmented tissues in a joint gap. Then, the proximal clavicle end of the fracture or the dislocated sternoclavicular joint is reduced, the fixing plate for the treatment of the proximal clavicle fracture or the dislocation of the sternoclavicular joint is taken out, the S-shaped connecting portion 3 of the fixing plate is positioned at the sternoclavicular joint connection, the sternum stem portion 1 is fixed to the sternum stem 7 by the locking screw 6, and the clavicle plate portion 2 is fixed to the clavicle 8 by the locking screw 6 and the cortical screw 9. The locking screw 6 can be made into different specifications according to the thickness of the sternum handle 7 and the clavicle 8, the length of the screw is suitable for just penetrating through the bone cortex below the clavicle 8, and the subclavian vascular nerve is prevented from being damaged. Finally, probing and repairing sternoclavicular and costoclavicular ligaments to ensure the integrity of the sternoclavicular joints as much as possible, and then flushing and suturing layer by layer. This a fixed plate for clavicle near-end fracture or chest clavicle joint dislocation treatment can realize the fine motion between the chest clavicle joint, has both guaranteed the stability and the fastness of clavicle near-end fracture or chest clavicle joint dislocation like this, be favorable to the disease to carry out early function exercise on effective fixed basis again, promote joint function to resume, prevent complications such as joint stiffness and arthralgia, disease postoperative is through instructing the exercise, can furthest resume chest clavicle joint function, avoid the complication.

The above description is only a preferred embodiment of the present invention, and the above illustration does not limit the essence of the present invention in any form, and any simple modification or variation of the above embodiments based on the technical essence of the present invention and equivalent embodiments which may be changed or modified to equivalent variations by using the technical essence of the present invention by those of ordinary skill in the art after reading the present description still belong to the technical solution of the present invention without departing from the essence and scope of the present invention.

Claims

1. The utility model provides a fixed plate that is used for clavicle near-end fracture or chest clavicle joint dislocation treatment, is the integrated into one piece structure, and it comprises sternum stalk portion (1), clavicle board portion (2), S type connecting portion (3) and locking hole, its characterized in that: the included angle A between the sternum handle part (1) and the clavicle plate part (2) in the horizontal direction is 120-150 degrees, and an S-shaped connecting part (3) is arranged between the sternum handle part (1) and the clavicle plate part (2); the S-shaped connecting part (3) is formed by connecting a U-shaped part with an upward opening and a U-shaped part with a downward opening; the distance H between the top end and the bottom end of the S-shaped connecting part (3) is 3.5-4.5 mm, and the length B of the S-shaped connecting part (3) is 5 mm; the joints of the two ends of the S-shaped connecting part (3) and the sternum handle part (1) and the clavicle plate part (2) are smooth circular arc transition; locking holes are formed in the sternum handle part (1) and the clavicle plate part (2).

2. A fixation plate for the treatment of a proximal clavicle fracture or a sternoclavicular dislocation according to claim 1, wherein: the clavicle plate part (2) is made into different plate lengths, the plate shape is made into a straight shape and a bent shape, and the bent shape of the bent plate length is the same as the clavicle (8) of the human body.

3. A fixation plate for the treatment of a proximal clavicle fracture or a sternoclavicular dislocation according to claim 1, wherein: the sternum locking plate is characterized in that the locking holes are divided into circular locking holes (4-1) and waist-shaped locking holes (4-2), 4 circular locking holes (4-1) are formed in the sternum handle part (1), 4 circular locking holes (4-1) are formed in the front end of the clavicle plate part (2), and 3-5 waist-shaped locking holes (4-2) are formed in the rear end of the clavicle plate part (2) according to different plate lengths.

4. A fixation plate for the treatment of a proximal clavicle fracture or a sternoclavicular dislocation according to claim 3, wherein: the locking holes are respectively matched with a locking screw (6) and a cortical bone screw (9) for use, wherein the round locking hole (4-1) is matched with a small locking screw (6-1) for use, and the waist-shaped locking hole (4-2) is matched with a large locking screw (6-2) and the cortical bone screw (9) for use; the small locking screw (6-1) is phi 2.7mm in specification, the large locking screw (6-2) is phi 3.5mm in specification, and the cortical screw (9) is phi 3.5mm in specification.

5. A fixation plate for the treatment of a proximal clavicle fracture or a sternoclavicular dislocation according to claim 1, wherein: concave notches (5) with smooth edges are symmetrically formed in two sides of the fixing plate of the clavicle plate part (2), and the concave notches (5) are distributed on two sides of the fixing plate between the locking holes.