CN215534951U

CN215534951U - Internal implantation device for dislocation and fracture of sternoclavicular joint

Info

Publication number: CN215534951U
Application number: CN202121929628.1U
Authority: CN
Inventors: 郭宏君; 郭晓舟
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-08-17
Filing date: 2021-08-17
Publication date: 2022-01-18
Anticipated expiration: 2031-08-17

Abstract

The utility model discloses an in vivo implantation device for dislocation and fracture of sternoclavicular joints, which comprises a retention plate, wherein the retention plate is arranged in a plate-shaped structure, and one end of the retention plate is provided with a connecting and fixing hole; the fixing traction rod is also included; one end of the retention traction rod is provided with a molding part, and the molding part penetrates through the connecting and fixing hole to be fixedly connected with the retention plate through a fastening screw; the other end of the retention traction rod is provided with a retention part, and the retention part is provided with a retention fixing hole fixed on the position of the proximal end of the clavicle. The utility model connects the molding part at the other end of the fixing traction rod fixed at the near end of the clavicle with the position fixing plate fixed on the sternum through the connecting and fixing hole by the fastening screw, so that the dislocated sternoclavicular joint is maintained in a reset state, important blood vessels and visceral organs are avoided, and the operation of doctors is facilitated.

Description

Internal implantation device for dislocation and fracture of sternoclavicular joint

Technical Field

The utility model relates to the technical field of medical instruments, in particular to an in-vivo implantation device for dislocation and fracture of sternoclavicular joints.

Background

As is known, the sternoclavicular joint is composed of the sternal end of the clavicle, 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. Because the dislocation of the sternoclavicular joint caused by trauma is relatively rare in clinic and the specificity and the lack of clinical experience of the operation position make the treatment of the dislocation become a great problem in fracture surgery. In summary, the dislocation of the sternoclavicular joint accounts for about 3% of the total number of the previous cases of patients with shoulder blade injury. With the modernization of production and transportation tools, traumatic sternoclavicular joint dislocation tends to increase gradually in recent years.

Because the position structure of the sternoclavicular joint is special, the dislocated sternoclavicular joint is not easy to be stable, and is easy to dislocate again after restoration, and the external fixation is difficult to maintain. The characteristics of the proximal clavicle fracture and the pathological features of the dislocation of the sternoclavicular joint are similar, the problems of easy reduction and difficult alignment maintenance exist, and the optimal treatment method for the patients is to perform reduction first and then perform internal fixation. Regardless of the internal fixation, an important prerequisite for fixation of proximal clavicle fractures and dislocation of the sternoclavicular joint is good intraoperative reduction and effective maintenance until fixation. The traditional fixing method comprises the following steps: the traditional internal fixation method respectively has the problems of poor mechanical stability, easy looseness of the steel plate, organ injury, abnormal healing, poor healing after healing and the like.

At present, the medical industry generally adopts plastic type chest clavicle joint steel plate internal implantation to treat patients with chest clavicle joint fracture dislocation, but chest clavicle joint fracture dislocation is a fracture dislocation which is very difficult to treat, a plurality of important blood vessels and visceral organs are arranged around the fracture dislocation, sufficient bone tissues are difficult to provide for fixing at the proximal ends of the sternum and the clavicle, the plastic type chest clavicle joint steel plate internal implantation is relatively complex, and unpredictable operation risks are easily caused to the important blood vessels and the visceral organs around the sternum.

In view of the above problems, the above treatment methods are not good surgical solutions, and thus there is a need for improvement thereof.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an in-vivo implantation device for dislocation and fracture of sternoclavicular joint, which aims to solve the problems of the background technology and the proposal that the existing plastic steel plate for the sternoclavicular joint is relatively complicated in implantation operation, can avoid important blood vessels and organs behind sternum and the proximal part of the clavicle and provides firm fixing effect.

In order to achieve the purpose, the utility model provides the following technical scheme: an in vivo implantation device for dislocation and fracture of sternoclavicular joint: the device comprises a position-retaining plate, wherein the position-retaining plate is arranged in a plate-shaped structure, and one end of the position-retaining plate is provided with a connecting and fixing hole; the fixing traction rod is also included; one end of the retention traction rod is provided with a molding part, and the molding part penetrates through the connecting and fixing hole to be fixedly connected with the retention plate through a fastening screw; the other end of the retention traction rod is provided with a retention part, and the retention part is provided with a retention fixing hole fixed on the position of the proximal end of the clavicle.

Furthermore, a positioning hole is arranged below the connecting and fixing hole on the position fixing plate, so that the fixed connection between the position fixing plate and the sternum is further enhanced; and reinforcing fixing holes are respectively arranged at two sides of the positioning hole.

Furthermore, at least one positioning hole is arranged, and at least one reinforcing fixing hole is symmetrically arranged.

Furthermore, the reinforcing fixing holes are obliquely arranged from two ends to the inner side.

Furthermore, the molding part is provided with a limiting fixing hole for the molding part to pass through the connecting fixing hole to be limited and fixed through a fastening screw.

Furthermore, at least one limiting fixing hole is formed; the molding part can be bent and molded according to the requirements of the operation by a clamp instrument, and has toughness.

Furthermore, a breaking line is arranged between the limiting fixing holes.

Furthermore, both ends of the broken line are rounded.

Furthermore, the retention traction rod, the fastening screw and the retention plate are all made of medical titanium alloy materials.

Compared with the prior art, the utility model has the beneficial effects that: fixing the fracture part at the near end of the clavicle or the dislocation part of the sternoclavicular joint at the near end of the clavicle through one end of the fixing traction rod, and then connecting the molding part at the other end with a fixing plate fixed on the sternum through a fastening screw by penetrating through a connecting and fixing hole to achieve the effect of firm fixation; the design that retention traction rod and retention board adopt the contained angle structure makes this fixed steel sheet can rationally effectual fixed sternoclavicular joint after reseing when providing fixed mounting, makes the contained angle that forms after the clavicle after reseing is connected with sternum axis of ordinates reach 110 ~ 140 and summarizes according to the big data of human structure, can be according to the crooked condition when using for straight fixed steel sheet, need the operation doctor to go on by oneself and bend it, thereby cause complex operation trouble, so contained angle structural design's rationality can make things convenient for operation doctor's use greatly.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a partially enlarged schematic view of the present invention;

FIG. 3 is a schematic view of the retaining tow bar of the present invention;

FIG. 4 is an enlarged view of a portion of the retention tow bar of the present invention;

FIG. 5 is a schematic view of the structure of the position-limiting fixing hole and the breaking line of the present invention;

FIG. 6 is a schematic structural diagram of the present invention in use.

In the figure: 1. the retaining traction rod 101, the retaining part 102, the retaining fixing hole 103, the molding part 104, the limiting fixing hole 105, the fracture line 2, the fastening screw 3, the retaining plate 301, the connecting fixing hole 302, the positioning hole 303, the reinforcing fixing hole 4, the clavicle 5 and the sternum.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-6, the present invention provides a technical solution: an in vivo implantation device for dislocation of sternoclavicular joint and fracture comprises a retention plate 3, wherein the retention plate 3 is arranged in a plate-shaped structure, and one end of the retention plate 3 is provided with a connecting and fixing hole 301; as shown in fig. 3, the retaining drawbar 1 is also included; one end of the retention traction rod 1 is provided with a molding part 103, the molding part 103 penetrates through the connecting and fixing hole 301 to be fixedly connected with the retention plate 3 through a fastening screw 2, and as shown in figure 1, the retention traction rod 1, the fastening screw 2 and the retention plate 3 are all made of medical titanium alloy materials; the other end of the retention traction rod 1 is provided with a retention part 101, and the retention part 101 is provided with a retention fixing hole 102 fixed on the proximal end position of the clavicle 4.

In one embodiment, at least one positioning hole 302 is provided below the connecting and fixing hole 301 on the fixation plate 3, so as to further enhance the fixed connection between the fixation plate 3 and the sternum 5, the two sides of the positioning hole 302 are respectively provided with one reinforcing and fixing hole 303, at least one reinforcing and fixing hole 303 is symmetrically provided, the reinforcing and fixing holes 303 are obliquely provided from two ends to the inner side, so as to avoid damage to the artery and vein behind the sternum 5, reduce the risk of surgery, and enhance the connection stability of the fixation plate on the sternum 5.

In one embodiment, a limiting fixing hole 104 is arranged on the molding part 103, and is used for limiting and fixing the molding part 103 through the connecting fixing hole 301 by a fastening screw 2; at least one limiting fixing hole 104 is arranged; the molding part 103 can be bent and molded according to the requirement of the operation by a clamp instrument and has elasticity; be equipped with broken line 105 between the spacing fixed orifices 104, the rounding off is handled at broken line 105 both ends, prevents to mould the section position that type portion 103 was intercepted after reaching the spacing fixed of suitable length and causes the damage to the human body.

The working principle is as follows: when the device is used, firstly, an operating doctor makes a longitudinal arc incision from the proximal end of a clavicle to one end of a sternum through a sternoclavicular joint, cuts open the skin, subcutaneous tissues and fascia layer by layer, exposes the clavicle 4, the sternoclavicular joint and the upper part of the sternum at the dislocation part, removes hematoma and obviously fractured cartilaginous discs, achieves good operation visual field, resets the sternoclavicular joint, temporarily fixes the sternoclavian joint by using a Kirschner wire, then carries out angle prejudgment according to an included angle formed by the repositioned sternum and the proximal end of the clavicle, carries out proper bending and molding on a molding part 103 by virtue of an operation instrument according to an angle required by an operation (the included angle formed after the clavicle 4 after the sternum is reset is connected with a longitudinal shaft 5 is in a range of 110-140 degrees), and then passes a fixing part 103 at one end of a traction rod 1 through a connecting and fixing hole 301 to be connected with a fixing plate 3; the position fixing plate 3 and the sternum 5 sequentially pass through the positioning hole 302 and the reinforcing fixing hole 303 by screws for positioning and fixing, the other end fixing part 101 on the position fixing traction rod 1 is connected and fixed with the near end of the clavicle 4 by screws to achieve the effect of firm fixation, then the molding part 103 is tensioned to ensure that the sternoclavicular joint is fixed in the last limiting fixing hole 104 penetrating through the connecting fixing hole 301 by the fastening nail 2 after reaching the connection state before dislocation, the redundant part is cut off, the kirschner wire temporarily fixed before is pulled out, and the incision is closed layer by layer; the fixing and installation are provided, and simultaneously, the fixing connection of the fixing traction rod 1 and the fixing plate 3 can avoid important blood vessels and organs behind the proximal ends of the sternum 5 and the clavicle 4, so that the operation procedure is simplified, the workload of an operator can be greatly reduced, and the operation risk can be reduced.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the utility model can be made, and equivalents and modifications of some features of the utility model can be made without departing from the spirit and scope of the utility model.

Claims

1. An in vivo implantation device for dislocation and fracture of sternoclavicular joint comprises a retention plate (3), wherein the retention plate (3) is arranged in a plate-shaped structure, and one end of the retention plate (3) is provided with a connecting and fixing hole (301); characterized in that the utility model also comprises a retention draw bar (1); one end of the retention traction rod (1) is provided with a molding part (103), and the molding part (103) penetrates through the connecting and fixing hole (301) to be fixedly connected with the retention plate (3) through a fastening screw (2); the other end of the retention traction rod (1) is provided with a retention part (101), and the retention part (101) is provided with a retention fixing hole (102) fixed on the position of the proximal end of the clavicle.

2. The device of claim 1, wherein the implant device is for dislocation of sternoclavicular joint and fracture of bone, and comprises: a positioning hole (302) is arranged below the connecting and fixing hole (301) on the position fixing plate (3) to further strengthen the fixed connection between the position fixing plate (3) and the sternum; and reinforcing fixing holes (303) are respectively arranged on two sides of the positioning hole (302).

3. The device of claim 2, wherein the implant device is for dislocation of sternoclavicular joint and fracture of bone, and comprises: at least one positioning hole (302) is arranged, and at least one reinforcing fixing hole (303) is symmetrically arranged.

4. An intracorporeal implant device for dislocation of the sternoclavicular joint and fracture of claim 2 or 3, wherein: the reinforcing fixing holes (303) are obliquely arranged from two ends to the inner side.

5. The device of claim 1, wherein the implant device is for dislocation of sternoclavicular joint and fracture of bone, and comprises: and the molding part (103) is provided with a limiting fixing hole (104) for limiting and fixing the molding part (103) through the fastening screw (2) after penetrating through the connecting fixing hole (301).

6. The device of claim 5, wherein the implant device is used for dislocation of sternoclavicular joint and fracture of bone, and comprises: at least one limiting fixing hole (104) is arranged; the molding part (103) can be bent and molded according to the requirements of the operation by a clamp instrument, and has toughness.

7. An intracorporeal implant device for dislocation of the sternoclavicular joint and fracture according to claim 5 or 6, wherein: and a breaking line (105) is arranged between the limiting fixing holes (104).

8. The device of claim 7, wherein the implant device is used for dislocation of sternoclavicular joint and fracture of bone, and comprises: and both ends of the broken line (105) are rounded.

9. The device of claim 1, wherein the implant device is for dislocation of sternoclavicular joint and fracture of bone, and comprises: the retention traction rod (1), the fastening screw (2) and the retention plate (3) are all made of medical titanium alloy materials.