CN218572284U

CN218572284U - Fracture fixing nail

Info

Publication number: CN218572284U
Application number: CN202222418433.1U
Authority: CN
Inventors: 李敏
Original assignee: Sport Hospital Attached To Cdsu
Current assignee: Sport Hospital Attached To Cdsu
Priority date: 2022-09-13
Filing date: 2022-09-13
Publication date: 2023-03-07
Anticipated expiration: 2032-09-13

Abstract

The utility model discloses a fracture staple, including cap, first staple pole, second staple pole and pin fin, its characterized in that: the top of the fixed and first staple pole of cap is revolved, the second staple pole is located first staple pole under and is located same axis, be provided with central fixed column between first staple pole and the second staple pole, the top of central fixed column and the butt joint of the bottom of first staple pole, the bottom of central fixed column and the butt joint of the top of second staple pole, central fixed column comprises a plurality of elasticity core combinations, the outer lag of fixedly connected with between first staple pole and the second staple pole, the whole outside of cup jointing in central fixed column of outer lag. The utility model discloses not only can follow human activity and carry out the fine motion, can not cause the rupture of fracture staple, more durable, the tissue can not appear when follow-up dismantlement simultaneously and attached to the operation that influences the back-out on the central fixed column, and is more practical.

Description

Fracture fixing nail

Technical Field

The utility model relates to a fracture fixation structure technical field specifically is a fracture fixation nail.

Background

The treatment of fracture generally adopts reduction fixation, and after the fracture is reduced, because the fracture is unstable and easy to displace again, different methods are adopted to fix the fracture at a satisfactory position so as to enable the fracture to heal gradually. Commonly used fixation methods are: small splints, plaster bandages, external fixing supports, traction, braking and fixing and the like, and the fixing methods are called external fixing. If the fixation is performed by surgical incision with steel plate, steel needle, intramedullary needle, screw, etc., the internal fixation is called. However, after a part of fracture is fixed, the fixing nail often needs to slightly move according to the action of the human body due to the movement of the human body, so the fixing nail is easy to break due to the action of shearing force, and after the fixing nail is broken, the broken fixing nail is easy to take out and is retained in the human body, thereby causing permanent injury to the human body.

The utility model provides a fracture fixation nail of 201520540460.3, the fixation nail includes head and a nail pole, the nail pole includes first nail pole, second nail pole and third nail pole, first nail pole is connected with the head, the both ends of second nail pole are connected with first nail pole and third nail pole respectively; the second nail rod consists of a plurality of elastic wires; and the third nail rod is provided with threads. The utility model discloses a staple can carry out the fine motion along with human activity, is difficult for the rupture. However, the second nail rod at the center of the second nail rod is composed of a plurality of elastic wires, after the second nail rod is screwed into the bone, liquid inside the bone permeates among the elastic wires for a long time, and the second nail rod and the internal tissue of the bone form a whole in the long-time implantation process, so that subsequent disassembly operation is inconvenient.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a fracture staple to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a fracture staple, is including revolving cap, first staple pole, second staple pole and pin fin, its characterized in that: the screw cap is used for fixing the top end of the first fixing nail rod, the second fixing nail rod is located under the first fixing nail rod and located on the same axis, a central fixing column is arranged between the first fixing nail rod and the second fixing nail rod, the top end of the central fixing column is in butt joint with the bottom end of the first fixing nail rod, the bottom end of the central fixing column is in butt joint with the top end of the second fixing nail rod, the central fixing column is formed by combining a plurality of elastic cores, an outer protecting sleeve is fixedly connected between the first fixing nail rod and the second fixing nail rod, and the outer protecting sleeve is integrally sleeved on the outer side of the central fixing column.

As the utility model discloses a preferred technical scheme, the inboard of outer lag is close to upper and lower end department and all is provided with the stabilizer ring, upper and lower end the inboard of stabilizer ring hold tightly in on the outer wall of center fixed column.

As the preferred technical scheme of the utility model, it is provided with central guide hole all to revolve cap, first staple pole, central fixed column, second staple pole and pin fin center.

As the utility model discloses a preferred technical scheme, the lateral surface of first staple pole sets up to first thread tightening district.

As the utility model discloses a preferred technical scheme, the lateral surface of second staple pole sets up to second thread tightening district.

As the preferred technical scheme of the utility model, outer lag wholly adopts the polyether ether ketone material to make.

As the utility model discloses a preferred technical scheme, the stabilizer ring adopts titanium alloy material to make, upper and lower end the stabilizer ring all imbeds the inside and the medial surface of outer lag with outer lag inner wall flushes.

As the utility model discloses a preferred technical scheme, the rotating groove has been seted up at the top of spiral shell's cap, the rotating groove wholly sets up to cross.

As the preferred technical scheme of the utility model, the screw cap, the first fixed nail pole, the second fixed nail pole and the pin fin all adopts titanium alloy material to make.

As the preferred technical proposal of the utility model, the elastic core is made of titanium alloy material.

Compared with the prior art, the beneficial effects of the utility model are that:

this fracture staple not only can follow human activity and carry out the fine motion, can not cause fracture staple's rupture, and is more durable, and the tissue can not appear when follow-up dismantlement simultaneously and adhere to the operation that influences the back-out on the central fixed column, and is more practical.

Drawings

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

FIG. 2 is a schematic view of a semi-cutting structure of the present invention;

FIG. 3 is a schematic view of the connection structure of the stabilizing ring and the central fixing post of the present invention;

fig. 4 is a schematic view of the connection structure of the outer protection cover and the central fixing column of the present invention.

In the figure: 1. screwing the cap; 2. a first staple bar; 3. a central fixed column; 4. an outer protective sleeve; 5. a stabilizing ring; 6. a second staple bar; 7. a nail head; 8. a first threaded securement region; 9. a second threaded securement region; 10. rotating the groove; 11. an elastic core; 12. a central guide hole.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships that are based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, rather than to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

Referring to fig. 1 to 4, the present invention provides a fracture fixation nail, comprising: the utility model provides a fracture staple, includes cap 1, first staple pole 2, second staple pole 6 and pin fin 7, its characterized in that: the screw cap 1 is fixed to the top end of the first fixing nail rod 2, the second fixing nail rod 6 is located under the first fixing nail rod 2 and located on the same axis, a center fixing column 3 is arranged between the first fixing nail rod 2 and the second fixing nail rod 6, the top end of the center fixing column 3 is in butt joint with the bottom end of the first fixing nail rod 2, the bottom end of the center fixing column 3 is in butt joint with the top end of the second fixing nail rod 6, the center fixing column 3 is formed by combining a plurality of elastic cores 11, an outer protective sleeve 4 is fixedly connected between the first fixing nail rod 2 and the second fixing nail rod 6, and the outer protective sleeve 4 is integrally sleeved on the outer side of the center fixing column 3.

Further, the outer protective sleeve 4 is integrally made of polyether-ether-ketone material.

In this embodiment, the elastic modulus of the polyetheretherketone material is close to that of cortical bone, and when used as a bone grafting material, the polyetheretherketone material can serve as a container for biological cereal material and provide initial stability.

Further, the stabilizing ring 5 is made of a titanium alloy material, the upper end and the lower end of the stabilizing ring 5 are embedded into the outer protecting sleeve 4, and the inner side surface of the stabilizing ring is flush with the inner wall of the outer protecting sleeve 4.

In this embodiment, the stabilizing ring 5 can limit the occurrence of the excessive deformation of the center fixing post 3.

Furthermore, the top of the screw cap 1 is provided with a rotating groove 10, and the rotating groove 10 is in a cross shape as a whole.

Furthermore, the screw cap 1, the first fixed nail rod 2, the second fixed nail rod 6 and the nail head 7 are all made of titanium alloy materials.

Further, the elastic core 11 is also made of a titanium alloy material.

Further, stabilizing rings 5 are arranged on the inner sides of the outer protecting sleeves 4 close to the upper end and the lower end, and the inner sides of the stabilizing rings 5 at the upper end and the lower end are tightly held on the outer wall of the central fixing column 3.

Furthermore, the center of the screw cap 1, the center fixed post 2, the center fixed post 3, the center fixed post 6 and the center of the nail head 7 are all provided with a center guide hole 12.

In this embodiment, the central guide hole 12 is matched with a guide rod to facilitate the penetrating operation of the whole bone nail.

Furthermore, the outer side surface of the first fixing nail rod 2 is provided with a first thread fixing area 8.

Furthermore, the outer side surface of the second fixing nail rod 6 is provided with a second thread fixing area 9.

The working principle is as follows: drive inside whole bone nail screw in bone through rotating groove 10 on the cap 1 during the use, fix through first thread fixed area 8 and second thread fixed area 9 on first staple pole 2 and the second staple pole 6, during the implantation, outer lag 4 can effectively organize outside liquid and tissue and attach to the outside of central fixed column 3, central fixed column 3 that constitutes by a plurality of elastic core 11 combinations simultaneously also can be when the motion, follow human activity and carry out the fine motion, can not cause the rupture of fracture staple, and is more durable, the operation of attaching to the central fixed column 3 and influencing the back-out can not appear organizing during follow-up dismantlement.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a fracture staple, is including revolving cap (1), first staple pole (2), second staple pole (6) and pin fin (7), its characterized in that: the screw cap (1) is fixed to the top end of the first fixed nail rod (2), the second fixed nail rod (6) is located under the first fixed nail rod (2) and located on the same axis, a central fixing column (3) is arranged between the first fixed nail rod (2) and the second fixed nail rod (6), the top end of the central fixing column (3) is in butt joint with the bottom end of the first fixed nail rod (2), the bottom end of the central fixing column (3) is in butt joint with the top end of the second fixed nail rod (6), the central fixing column (3) is formed by combining a plurality of elastic cores (11), an outer protecting sleeve (4) is fixedly connected between the first fixed nail rod (2) and the second fixed nail rod (6), and the outer protecting sleeve (4) is integrally sleeved on the outer side of the central fixing column (3).

2. A fracture fixation nail as claimed in claim 1, wherein: the inner side of the outer protective sleeve (4) is provided with stabilizing rings (5) close to the upper end and the lower end, and the inner sides of the stabilizing rings (5) at the upper end and the lower end are tightly held on the outer wall of the central fixing column (3).

3. A fracture fixation nail according to claim 1, wherein: the center of the screw cap (1), the first fixed nail rod (2), the center fixed column (3), the second fixed nail rod (6) and the nail head (7) is provided with a center guide hole (12).

4. A fracture fixation nail according to claim 1, wherein: the outer side surface of the first fixing nail rod (2) is provided with a first thread fixing area (8).

5. A fracture fixation nail as claimed in claim 1, wherein: the outer side surface of the second fixing nail rod (6) is provided with a second thread fixing area (9).

6. A fracture fixation nail according to claim 1, wherein: the whole outer protective sleeve (4) is made of polyether-ether-ketone materials.

7. A fracture fixation nail according to claim 2, wherein: the stabilizing ring (5) is made of a titanium alloy material, the upper end and the lower end of the stabilizing ring (5) are embedded into the outer protecting sleeve (4), and the inner side face of the stabilizing ring is flush with the inner wall of the outer protecting sleeve (4).

8. A fracture fixation nail as claimed in claim 1, wherein: the top of the rotating cap (1) is provided with a rotating groove (10), and the rotating groove (10) is integrally cross-shaped.

9. A fracture fixation nail according to claim 1, wherein: the screw cap (1), the first fixed nail rod (2), the second fixed nail rod (6) and the nail head (7) are all made of titanium alloy materials.

10. A fracture fixation nail according to claim 1, wherein: the elastic core (11) is also made of a titanium alloy material.