A fixation device for treating proximal clavicle fracture and sternoclavicular joint dislocation

Abstract

The present invention relates to a fixing device for treating proximal clavicle fractures and sternoclavicular joint dislocation, and belongs to the technical field of medical devices. It is composed of a clavicle fixing plate, a sternum manubrium fixing plate and a connecting piece, and fixing holes are respectively arranged on the clavicle fixing plate and the sternum manubrium fixing plate; the clavicle fixing plate and the sternum manubrium fixing plate are movably connected through the connecting piece, and the end of the sternum manubrium fixing plate at the clavicle fixing plate is bent. The fixing device can realize micro-motion between the sternoclavicular joint through the connecting piece between the clavicle fixing plate and the sternum manubrium fixing plate, and solves the problem that the existing use of ordinary sternoclavicular joint fixing plates limits the micro-motion of the sternoclavicular joint in all directions, affects the linkage effect of the shoulder joint, and is not conducive to restoring the function of the sternoclavicular joint. It has the advantages of simple structure, convenient implantation, firm and reliable fixation, and good stability, and is particularly suitable for the treatment of proximal clavicle fractures.

Description

Technical Field

[0001] The invention relates to a fixing device for treating proximal clavicle fracture and sternoclavicular joint dislocation, belonging to the technical field of medical equipment. Background Art

[0002] The sternoclavicular joint is the only joint between the upper limb and the trunk. It is composed of the sternal end of the clavicle, the sterno-clavicular notch and the first costal cartilage, and is a saddle joint. The part that constitutes the clavicular end of the sternoclavicular joint is the articular surface, which is located on the enlarged sternal end of the medial end of the clavicle. There is a costoclavicular ligament pressure mark below it. The enlarged medial end of the clavicle is called the sternal end. The joint capsule is attached to the periphery of the joint. It is thinner on the front and back, slightly thicker on the upper and lower sides. The joint capsule is tough and has ligament reinforcement around it. The sternoclavicular joint can make micro-movements in all directions, which is reflected in the lifting, lowering and forward and backward movement of the lateral end of the clavicle. In addition, it can also make slight rotational movements. Due to the particularity of the anatomical position of the proximal clavicle fracture combined with sternoclavicular joint dislocation and the lack of clinical experience, its treatment has become a major problem in fracture surgery. The onset characteristics of proximal clavicle fractures and sternoclavicular joint dislocations are similar, and both have the problem of easy reduction and difficult maintenance of alignment. That is, no matter what kind of internal fixation device is used, the important prerequisite for the fixation of clavicle fracture and sternoclavicular joint dislocation is good reduction during the operation and effective maintenance until fixation. In the prior art, Kirschner wires or steel wires are mainly used for fixation, but the internal fixation often loosens, wanders, and has poor stability after reduction. The method of using a common fixation plate for the sternoclavicular joint limits the micro-motion of the sternoclavicular joint in all directions, affects the linkage of the shoulder joint, and is not conducive to maximizing the restoration of the sternoclavicular joint function. Therefore, it is necessary to improve it. Summary of the invention

[0003] The purpose of the present invention is to provide a fixation device for treating proximal clavicle fractures and sternoclavicular joint dislocations, which is simple to operate, has little trauma, is easy to fix on the clavicle and sternoclavicular joint, and can effectively maintain fixation on the premise that the sternoclavicular joint can move slightly.

[0004] The technical solution of the present invention is:

[0005] A fixation device for treating proximal clavicle fractures and sternoclavicular joint dislocations, comprising a clavicle fixation plate, a sternum manubrium fixation plate and a connector, wherein the clavicle fixation plate and the sternum manubrium fixation plate are respectively provided with fixation holes; the device is characterized in that the clavicle fixation plate and the sternum manubrium fixation plate are movably connected with each other through the connector, the end of the sternum manubrium fixation plate is bent at the clavicle fixation plate, and the angle between the clavicle fixation plate and the sternum manubrium fixation plate is 130° to 140°.

[0006] The connecting piece is composed of a clavicle connecting seat and a sternum manubrium connecting seat, and the clavicle connecting seat and the sternum manubrium connecting seat are rectangular bodies respectively; the clavicle connecting seat is symmetrically provided with assembly holes, a ball pin is installed in the assembly hole through a ball pin seat, a plug is installed in the port of the assembly hole through an internal thread, and a spring is provided between the plug and the ball pin seat. One end of the ball pin extends to the outer end of the clavicle connecting seat, and the ball pin extending to the outer end of the clavicle connecting seat is fixedly connected to the pin column.

[0007] The rear ends of the clavicle connecting seat and the sternum manubrium connecting seat are respectively provided with connecting plates in an up-and-down shape, and fixing holes are provided on the connecting plates.

[0008] The sternum manubrium connecting seat is provided with an assembly hole corresponding to the ball pin; a pin is movably installed in the assembly hole.

[0009] The clavicle connection seat corresponding to the ball pin is provided with an up-and-down swing groove, and the sternum handle connection seat corresponding to the pin is provided with a left-and-right swing groove. The up-and-down swing groove is longitudinally arranged on the clavicle connection seat, and the left-and-right swing groove is longitudinally arranged on the sternum handle connection seat.

[0010] A fixation device for treating proximal clavicle fractures and sternoclavicular joint dislocations, comprising a clavicle fixation plate, a sternum manubrium fixation plate and a connector, wherein the clavicle fixation plate and the sternum manubrium fixation plate are respectively provided with fixation holes; the device is characterized in that the clavicle fixation plate and the sternum manubrium fixation plate are movably connected with each other through the connector, the end of the sternum manubrium fixation plate is bent at the clavicle fixation plate, and the angle between the clavicle fixation plate and the sternum manubrium fixation plate is 130° to 140°.

[0011] The connecting piece is composed of a clavicle connecting seat and a sternum manubrium connecting seat, and the clavicle connecting seat and the sternum manubrium connecting seat are rectangular bodies respectively; the clavicle connecting seat is provided with an assembly hole, and a clavicle seat column pin is movably installed in the assembly hole. The sternum manubrium connecting seat corresponding to the clavicle seat column pin is symmetrically provided with an assembly hole, and a sternum manubrium seat column pin is movably installed in the assembly hole. The sternum manubrium seat column pin and the clavicle seat column pin are fixedly connected to each other through a connecting rod.

[0012] The assembly hole on the clavicle connection seat is arranged horizontally, and the assembly hole on the sternum manubrium connection seat is arranged vertically. The cross sections of the assembly holes on the clavicle connection seat and the sternum manubrium connection seat are respectively C-shaped.

[0013] The rear ends of the clavicle connecting seat and the sternum manubrium connecting seat are respectively provided with connecting plates in an up-and-down shape, and fixing holes are provided on the connecting plates.

[0014] The ends of the clavicle seat pin and the sternum handle seat pin are respectively flush with the assembly hole ports, wherein the clavicle connecting seat corresponding to the ends of the clavicle seat pin at both ends is fixed with an angle adjustment pin. The sternum handle connecting seat corresponding to the top end of the sternum handle seat pin is fixed with an angle adjustment pin.

[0015] One end of the angle adjustment needle extends to the end faces of the corresponding clavicle seat pin and sternum handle seat pin, and is respectively connected with the clavicle seat pin and sternum handle seat pin in sliding contact. The end faces of the clavicle seat pin and sternum handle seat pin corresponding to the angle adjustment needle are respectively provided with threaded positioning holes in an interval shape; an angle positioning column is threadedly installed in the threaded positioning hole, and the angle positioning column is intermittently contacted and connected with the angle adjustment needle.

[0016] The beneficial effects of the present invention are:

[0017] The fixation device for treating proximal clavicle fracture and sternoclavicular joint dislocation can realize micro-motion between the sternoclavicular joints through the connecting piece between the clavicle fixation plate and the sternal manubrium fixation plate, solving the problem that the existing common sternoclavicular joint fixation plate restricts the micro-motion of the sternoclavicular joint in all directions, affects the linkage of the shoulder joint, and is not conducive to restoring the function of the sternoclavicular joint. It has the advantages of simple structure, convenient implantation, firm and reliable fixation, and good stability, and is particularly suitable for the treatment of proximal clavicle fractures. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present invention;

[0019] Figure 2 This is a schematic structural diagram of a clavicle connector according to Embodiment 1 of the present invention;

[0020] Figure 3 for Figure 2 A schematic cross-sectional structure diagram of;

[0021] Figure 4 This is a schematic structural diagram of the sternum manubrium connecting seat of Example 1 of the present invention;

[0022] Figure 5 This is a schematic diagram of the structure of Embodiment 2 of the present invention;

[0023] Figure 6 This is a schematic structural diagram of the clavicle connector of Example 2;

[0024] Figure 7 for Figure 6 A is an enlarged structural diagram;

[0025] Figure 8 It is a structural schematic diagram of the sternum manubrium connecting seat of Example 2;

[0026] Fig. 9 for Figure 8 A in the figure is an enlarged structural diagram.

[0027] In the figure: 1. clavicle fixing plate, 2. sternum manubrium fixing plate, 3. connecting piece, 4. fixing hole, 5. clavicle connecting seat, 6. sternum manubrium connecting seat, 7. ball pin seat, 8. ball pin, 9. plug, 10. spring, 11. pin, 12. up and down swinging groove, 13. left and right swinging groove, 14. connecting plate, 15. clavicle seat pin, 16. sternum manubrium seat pin, 17. connecting rod, 18. angle adjustment pin, 19. threaded positioning hole. DETAILED DESCRIPTION

[0028] Embodiment 1:

[0029] The fixing device for treating proximal clavicle fracture and sterno-clavicular joint dislocation is composed of a clavicle fixing plate 1, a sternum manubrium fixing plate 2 and a connecting piece 3. The clavicle fixing plate 1 and the sternum manubrium fixing plate 2 are movably connected through the connecting piece 3. The clavicle fixing plate 1 and the sternum manubrium fixing plate 2 are respectively provided with fixing holes 4 for fixing the clavicle and the sternum manubrium. The sternum manubrium fixing plate 2 is bent at the end of the clavicle fixing plate 1, and the angle between the clavicle fixing plate 1 and the sternum manubrium fixing plate 2 is 130° to 140°.

[0030] The connecting member 3 of the fixing device is composed of a clavicle connecting seat 5 and a sternal manubrium connecting seat 6, and the clavicle connecting seat 5 and the sternal manubrium connecting seat 6 are respectively rectangular bodies; the clavicle connecting seat 5 is symmetrically provided with assembly holes, and a ball pin 8 is installed in the assembly hole through a ball pin seat 7, and a plug 9 is installed in the port of the assembly hole through a thread, and a spring 10 is arranged between the plug 9 and the ball pin seat 7; the clavicle connecting seat 5 corresponding to the ball pin 8 is provided with an up and down swinging groove 12, and the up and down swinging groove 12 is longitudinally arranged on the clavicle connecting seat 5 to limit the ball pin 8 to a maximum swing of 120 degrees on the clavicle connecting seat 5.

[0031] An assembly hole is provided on the sternum manubrium connection seat 6 corresponding to the ball pin 8; a pin 11 is movably installed in the assembly hole. A left-right swing groove 13 is provided on the sternum manubrium connection seat 6 corresponding to the pin 11, and the left-right swing groove 13 is connected to the assembly hole; the left-right swing groove 13 is longitudinally provided on the sternum manubrium connection seat 6 to limit the pin 11 to swing within a maximum of 30 degrees on the sternum manubrium connection seat 6.

[0032] One end of the ball pin 8 of the fixing device extends to the outer end of the clavicle connecting seat 5 , and the ball pin 8 extending to the outer end of the clavicle connecting seat 5 passes through the left and right swinging grooves 13 and is fixedly connected to the pin 11 .

[0033] The rear ends of the clavicle connecting seat 5 and the sternum manubrium connecting seat 6 are respectively provided with connecting plates 14 in an upper and lower shape, and the connecting plates are provided with fixing holes for fixing on the corresponding clavicle fixing plate 1 and sternum manubrium fixing plate 2.

[0034] The connection between the clavicle fixing plate 1 and the sternum manubrium fixing plate 2 of the fixing device by the connecting piece 3 makes the whole of the fixing device have the micromotion in the X-axis direction and the slight torsion in the Y-axis direction, and then the physiological micromotion of the sternoclavicular joint can be retained in actual application, thereby promoting the rehabilitation of the ligament joint capsule around the sternoclavicular joint. The clavicle fixing plate 1 and the sternum manubrium fixing plate 2 of the fixing device adopt pure titanium material, and the thickness is 1mm. During use, the connecting piece 3 of the fixing device is in the sternoclavicular joint connection, and the clavicle fixing plate 1 is fixed on the clavicle by the fixing screw through the fixing hole, and the sternum manubrium fixing plate 2 is fixed on the sternum manubrium. The micromotion between the sternoclavicular joint can be realized by the connecting piece 3, so that the stability and firmness of the proximal clavicle fracture or the sternoclavicular joint dislocation are guaranteed, and the patient is helped to carry out early functional exercise on the basis of effective fixation, promote joint function recovery, solve the problem that the existing fixing plate limits the micromotion of the sternoclavicular joint in all directions, affects the linkage effect of the shoulder joint, and is not conducive to the problem of restoring the function of the sternoclavicular joint. The device has the advantages of simple structure, convenient implantation, firm and reliable fixation and good stability, and is particularly suitable for the treatment of proximal clavicle fractures.

[0035] Embodiment 2:

[0036] The fixing device for treating proximal clavicle fracture and sterno-clavicular joint dislocation is composed of a clavicle fixing plate 1, a sternum manubrium fixing plate 2 and a connecting piece 3. The clavicle fixing plate 1 and the sternum manubrium fixing plate 2 are movably connected through the connecting piece 3. The clavicle fixing plate 1 and the sternum manubrium fixing plate 2 are respectively provided with fixing holes 4 for fixing the clavicle and the sternum manubrium. The sternum manubrium fixing plate 2 is bent at the end of the clavicle fixing plate 1, and the angle between the clavicle fixing plate 1 and the sternum manubrium fixing plate 2 is 130° to 140°.

[0037] The connecting member 3 is composed of a clavicle connecting seat 5 and a sternum manubrium connecting seat 6, and the clavicle connecting seat 5 and the sternum manubrium connecting seat 6 are rectangular bodies respectively; an assembly hole is provided on the clavicle connecting seat 5, and the assembly hole on the clavicle connecting seat 5 is arranged horizontally, and a clavicle seat column pin 15 is movably installed in the assembly hole. The sternum manubrium connecting seat 6 corresponding to the clavicle seat column pin 15 is symmetrically provided with assembly holes (assembly grooves, non-through grooves), and the assembly hole on the sternum manubrium connecting seat 6 is arranged longitudinally. A sternum manubrium seat column pin 16 is movably installed in the assembly hole. The sternum manubrium seat column pin 16 and the clavicle seat column pin 15 are fixedly connected to each other through a connecting rod 17. The cross-sections of the assembly holes on the clavicle connecting seat 5 and the sternum manubrium connecting seat 6 are respectively C-shaped (open shape). The rear ends of the clavicle connecting seat 5 and the sternum manubrium connecting seat 6 are respectively provided with connecting plates 14 in an upper and lower shape, and the connecting plates 14 are provided with fixing holes; used for fixing on the corresponding clavicle fixing plate 1 and sternum manubrium fixing plate 2.

[0038] The ends of the clavicle seat pin 15 and the sternum manubrium seat pin 16 of the fixing device are flush with the ports of the assembly hole respectively, wherein the clavicle connecting seats 5 corresponding to the ends of the clavicle seat pin 15 at both ends are respectively fixed with angle adjustment pins 18; the sternum manubrium connecting seat 6 corresponding to the top end of the sternum manubrium seat pin 16 is fixed with an angle adjustment pin 18.

[0039] One end of the angle adjustment pin 18 of the clavicle connection seat 5 and the sternum handle connection seat 6 extends to the end surface of the clavicle seat column pin 15 and the sternum handle seat column pin 16 respectively, and is respectively slidably contacted and connected with the clavicle seat column pin 16 and the sternum handle seat column pin 16. The end surfaces of the clavicle seat column pin 15 and the sternum handle seat column pin 16 corresponding to the angle adjustment pin 18 are respectively provided with threaded positioning holes 19 in an interval shape; the threaded positioning holes 19 are internally threaded with angle positioning columns (not shown in the figure), and the angle positioning columns are contacted and connected with the angle adjustment pin 18. When in use, after the angle positioning columns are installed, their top ends are slightly higher than the end surfaces of the clavicle seat column pin 15 and the sternum handle seat column pin 16, so that the angle adjustment pin 18 forms a barrier by contacting with the angle positioning columns. By installing the angle positioning columns in different threaded positioning holes 19, the rotation angles of the clavicle seat column pin 15 and the sternum handle seat column pin 16 can be limited to meet the treatment needs. The angle adjustment pin 18 can not only limit the rotation angle of the clavicle seat pin 15 and the sternum handle seat pin 16, but also play an axial limiting role on the clavicle seat pin 15 and the sternum handle seat pin 16 to prevent them from slipping out of the assembly hole.

[0040] The connection between the clavicle fixing plate 1 and the sternum manubrium fixing plate 2 of the fixing device through the connecting piece 3 makes the whole of the fixing device have lateral micromotion and longitudinal slight torsion, and then the physiological micromotion of the sternoclavicular joint can be retained in actual application, thereby promoting the rehabilitation of the ligament joint capsule around the sternoclavicular joint. The clavicle fixing plate 1 and the sternum manubrium fixing plate 2 of the fixing device adopt pure titanium material, and the thickness is 1mm. When in use, the connecting piece 3 of the fixing device is at the sternoclavicular joint connection, and the clavicle fixing plate 1 is fixed on the clavicle by the fixing screw through the fixing hole, and the sternum manubrium fixing plate 2 is fixed on the sternum manubrium. The micromotion between the sternoclavicular joint can be realized by the connecting piece 3, so that the stability and firmness of the proximal clavicle fracture or the sternoclavicular joint dislocation are guaranteed, and the patient is helped to carry out early functional exercise on the basis of effective fixation, promote joint function recovery, solve the problem that the existing fixing plate limits the micromotion of the sternoclavicular joint in all directions, affects the linkage effect of the shoulder joint, and is not conducive to the problem of restoring the function of the sternoclavicular joint. The device has the advantages of simple structure, convenient implantation, firm and reliable fixation and good stability, and is particularly suitable for the treatment of proximal clavicle fractures.

Claims

1. A fixation device for treating proximal clavicle fractures and sternoclavicular joint dislocations, comprising a clavicle fixation plate (1), a sternal manubrium fixation plate (2) and a connecting piece (3), wherein the clavicle fixation plate (1) and the sternal manubrium fixation plate (2) are respectively provided with a fixing hole (4); the characteristics are as follows: The clavicle fixing plate (1) and the sternum manubrium fixing plate (2) are movably connected via a connecting piece (3); the end of the sternum manubrium fixing plate (2) is bent at the clavicle fixing plate (1); and the angle between the clavicle fixing plate (1) and the sternum manubrium fixing plate (2) is 130° to 140°; The connecting member (3) is composed of a clavicle connecting seat (5) and a sternum manubrium connecting seat (6), wherein the clavicle connecting seat (5) and the sternum manubrium connecting seat (6) are respectively rectangular bodies; the clavicle connecting seat (5) is symmetrically provided with clavicle connecting seat assembly holes, a ball pin (8) is installed in the clavicle connecting seat assembly hole through a ball pin seat (7), a plug (9) is installed through the internal thread of the clavicle connecting seat assembly hole port, and a spring (10) is arranged between the plug (9) and the ball pin seat (7); the sternum manubrium connecting seat (6) is provided with a sternum manubrium connecting seat assembly hole corresponding to the ball pin (8); a pin (11) is movably installed in the sternum manubrium connecting seat assembly hole; One end of the ball pin (8) extends to the outer end of the clavicle connecting seat (5), and the ball pin (8) extending to the outer end of the clavicle connecting seat (5) is fixedly connected to the pin column; The clavicle connection seat (5) corresponding to the ball pin (8) is provided with an up-and-down swing groove (12), and the sternum manubrium connection seat (6) corresponding to the pin (11) is provided with a left-and-right swing groove (13); the up-and-down swing groove (12) is longitudinally arranged on the clavicle connection seat (5), and the left-and-right swing groove (13) is longitudinally arranged on the sternum manubrium connection seat (6).

2. A fixation device for treating proximal clavicle fractures and sternoclavicular joint dislocation according to claim 1, characterized in that: The rear ends of the clavicle connecting seat (5) and the sternum manubrium connecting seat (6) are respectively provided with connecting plates (14) in an upper and lower shape, and the connecting plates (14) are provided with fixing holes.

3. A fixation device for treating proximal clavicle fractures and sternoclavicular joint dislocations, comprising a clavicle fixation plate (1), a sternal manubrium fixation plate (2) and a connecting piece (3), wherein the clavicle fixation plate (1) and the sternal manubrium fixation plate (2) are respectively provided with a fixing hole (4); the characteristics are as follows: The clavicle fixing plate (1) and the sternum manubrium fixing plate (2) are movably connected via a connecting piece (3); the end of the sternum manubrium fixing plate (2) is bent at the clavicle fixing plate (1); and the angle between the clavicle fixing plate (1) and the sternum manubrium fixing plate (2) is 130° to 140°; The connecting member (3) is composed of a clavicle connecting seat (5) and a sternum manubrium connecting seat (6), wherein the clavicle connecting seat (5) and the sternum manubrium connecting seat (6) are respectively rectangular bodies; an assembly hole is provided on the clavicle connecting seat (5), and a clavicle seat column pin (15) is movably installed in the assembly hole on the clavicle connecting seat (5); an assembly hole is symmetrically provided on the sternum manubrium connecting seat (6) corresponding to the clavicle seat column pin (15), and a sternum manubrium seat column pin (16) is movably installed in the assembly hole on the sternum manubrium connecting seat (6), and the sternum manubrium seat column pin (16) and the clavicle seat column pin (15) are fixedly connected to each other via a connecting rod (17); The assembly hole on the clavicle connection seat (5) is arranged horizontally, and the assembly hole on the sternum manubrium connection seat (6) is arranged longitudinally, and the assembly hole on the clavicle connection seat (5) and the assembly hole on the sternum manubrium connection seat (6) have C-shaped cross-sections respectively; the clavicle connection seat (5) and the sternum manubrium connection seat (6) are respectively provided with connection plates (14) in an upper and lower shape at the rear ends, and the connection plates (14) are provided with fixing holes; The ends of the clavicle seat pin (15) and the sternum handle seat pin (16) point Do not flush with its corresponding assembly hole port. That In the embodiment, the clavicle seat column pin (15) at both ends thereof is fixedly provided with an angle adjustment pin (18) on the clavicle connecting seat (5) corresponding to the ends thereof; and the sternum handle seat column pin (16) at the top end thereof is fixedly provided with an angle adjustment pin (18) on the sternum handle connecting seat (6) corresponding to the ends thereof.

4. A fixation device for treating proximal clavicle fractures and sternoclavicular joint dislocation according to claim 3, characterized in that: One end of the angle adjustment needle (18) extends to the end surfaces of the corresponding clavicle seat column pin (15) and sternum handle seat column pin (16), and is respectively slidably contacted and connected with the clavicle seat column pin (15) and sternum handle seat column pin (16). The end surfaces of the clavicle seat column pin (15) and sternum handle seat column pin (16) corresponding to the angle adjustment needle (18) are respectively provided with threaded positioning holes (19) in an interval shape; an angle positioning column is installed in the inner thread of the threaded positioning hole (19), and the angle positioning column is contacted and connected with the angle adjustment needle (18).

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