Intramedullary nail device for hip bone and femur fracture surgery

Abstract

The intramedullary nail device comprises an intramedullary nail, the intramedullary nail comprises an intramedullary main nail, a first bone nail, a second bone nail and a dynamic screw, a first screw hole, a second screw hole and a third screw hole are formed in the top of the intramedullary main nail, the first bone nail penetrates through the first screw hole, the second bone nail penetrates through the second screw hole, and the dynamic screw penetrates through the third screw hole. The dynamic screw is arranged in the third screw hole in a penetrating mode, the first bone nail and the second bone nail are arranged in a crossed mode, and the tail of the first bone nail and the tail of the second bone nail abut against the dynamic screw. According to the technical scheme, the hip supporting device has the functions of inner side supporting and rotation prevention at the same time, can be stably fixed, avoids hip shortening, and is more stable and safer in use.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to an intramedullary nail device used in hip and femur fracture operations. Background Art

[0002] In fracture treatment, how to reposition and fix according to the bone structure is very important, which will directly affect the degree of recovery of the fracture site and become the key to the success of the operation. After a femur fracture occurs in the human body, an intramedullary nail is usually used to connect the broken bones.

[0003] Existing intramedullary nail devices used in hip and femoral fracture surgeries have the following problems: the intramedullary nails currently used often rotate during or after surgery, resulting in unstable fixation and causing discomfort or even pain to the injured. Utility Model Content

[0004] The utility model aims to provide an intramedullary nail device used in hip and femur fracture operations, so as to solve the problems existing in the existing intramedullary nail devices used in hip and femur fracture operations.

[0005] In order to achieve the above object, the utility model provides the following technical solutions:

[0006] An intramedullary nail device for use in hip and femoral fracture surgery comprises an intramedullary nail, wherein the intramedullary nail comprises an intramedullary main nail, a first bone nail, a second bone nail and a dynamic screw, wherein a first screw hole, a second screw hole and a third screw hole are provided on the top of the intramedullary main nail, the first bone screw is inserted into the first screw hole, the second bone screw is inserted into the second screw hole, and the dynamic screw is inserted into the third screw hole, the first bone screw and the second bone screw are cross-arranged, and the tails of the first bone screw and the second bone screw are both abutted against the dynamic screw.

[0007] Preferably, the tails of the first bone screw, the second bone screw and the dynamic screw are all inclined toward the intramedullary main screw, and the angle formed by the first bone screw and the intramedullary main screw is smaller than the angle formed by the second bone screw and the intramedullary main screw.

[0008] Preferably, the first screw hole, the second screw hole and the third screw hole are arranged in sequence downward from the top of the intramedullary main nail.

[0009] Preferably, the length of the dynamic screw is greater than the lengths of the first bone screw and the second bone screw.

[0010] Preferably, a fixing nail is further provided at one end of the bottom of the intramedullary main nail, and the fixing nail passes through the intramedullary main nail.

[0011] Preferably, the bottom of the intramedullary main nail is a conical structure with an arc.

[0012] Compared with the prior art, the beneficial effects of the utility model are: it has the functions of medial support and anti-rotation at the same time, can stably fix and avoid hip shortening, and is more stable and safer when used. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic structural diagram of an intramedullary nail device for use in hip and femur fracture surgery provided by an embodiment of the utility model. DETAILED DESCRIPTION

[0014] The present invention is further described in detail below in conjunction with the accompanying drawings and implementation examples:

[0015] The reference numerals in the drawings of the specification include: 1, intramedullary main nail; 2, first bone nail; 3, second bone nail; 4, dynamic screw; 5, first screw hole; 6, second screw hole; 7, third screw hole; 8, fixing nail.

[0016] like Figure 1 As shown, an intramedullary nail device for hip and femoral fracture surgery includes an intramedullary nail, which includes an intramedullary main nail 1, a first bone nail 2, a second bone nail 3 and a dynamic screw 4. A first screw hole 5, a second screw hole 6 and a third screw hole 7 are opened on the top of the intramedullary main nail 1, and the first screw hole 5, the second screw hole 6 and the third screw hole 7 are arranged in sequence from the top of the intramedullary main nail 1 downward.

[0017] The first bone screw 2 is inserted into the first screw hole 5, the second bone screw 3 is inserted into the second screw hole 6, and the dynamic screw 4 is inserted into the third screw hole 7. The first bone screw 2 and the second bone screw 3 are cross-arranged, and the tails of the first bone screw 2 and the second bone screw 3 are both against the dynamic screw 4. The tails of the first bone screw 2, the second bone screw 3 and the dynamic screw 4 are all inclined toward the intramedullary main nail 1, and the angle formed by the first bone screw 2 and the intramedullary main nail 1 is smaller than the angle formed by the second bone screw 3 and the intramedullary main nail 1. The first bone screw 2, the second bone screw 3 and the dynamic screw 4 can form a stable triangular structure, making the intramedullary nail structure more stable and not easy to rotate.

[0018] The length of the dynamic screw 4 is greater than that of the first bone screw 2 and the second bone screw 3 , so as to facilitate the abutment of the first bone screw 2 and the second bone screw 3 .

[0019] A fixing nail 8 is also provided at one end of the bottom of the intramedullary main nail 1 , and the fixing nail 8 penetrates through the intramedullary main nail 1 to play a fixing role.

[0020] The bottom of the intramedullary main nail 1 is a conical structure with an arc.

[0021] The specific implementation process is as follows: when in use, the hole is rotated at the specified position, the intramedullary main nail 1 is implanted into the patient's fractured bone, the dynamic screw 4 is passed through the third screw hole 7, the first screw is passed through the first screw hole 5, the second screw is passed through the second screw hole 6, the tails of the first bone screw 2 and the second bone screw 3 are both placed on the dynamic screw 4 to form a stable triangular structure, and the fixing nail 8 is passed through the intramedullary main nail 1 to play a fixing role.

[0022] The above is only an embodiment of the utility model, and the common knowledge such as the known specific technical solutions and / or characteristics in the solution is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the technical solution of the utility model, several deformations and improvements can be made, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. An intramedullary nail device for hip and femoral fracture surgery, comprising an intramedullary nail, characterized in that: The intramedullary nail comprises an intramedullary main nail (1), a first bone nail (2), a second bone nail (3) and a dynamic screw (4); a first screw hole (5), a second screw hole (6) and a third screw hole (7) are provided on the top of the intramedullary main nail (1); the first bone nail (2) is inserted into the first screw hole (5); the second bone nail (3) is inserted into the second screw hole (6); the dynamic screw (4) is inserted into the third screw hole (7); the first bone nail (2) and the second bone nail (3) are cross-arranged, and the tails of the first bone nail (2) and the second bone nail (3) are both abutted against the dynamic screw (4).

2. The intramedullary nail device for hip and femur fracture surgery according to claim 1, characterized in that: The tails of the first bone screw (2), the second bone screw (3) and the dynamic screw (4) are all inclined toward the intramedullary main screw (1), and the angle formed by the first bone screw (2) and the intramedullary main screw (1) is smaller than the angle formed by the second bone screw (3) and the intramedullary main screw (1).

3. The intramedullary nail device for hip and femur fracture surgery according to claim 1, characterized in that: The first screw hole (5), the second screw hole (6) and the third screw hole (7) are arranged in sequence downward from the top of the intramedullary main nail (1).

4. The intramedullary nail device for hip and femoral fracture surgery according to claim 2, characterized in that: The length of the dynamic screw (4) is greater than the length of the first bone screw (2) and the second bone screw (3).

5. The intramedullary nail device for hip and femur fracture surgery according to claim 1, characterized in that: A fixing nail (8) is also provided at one end of the bottom of the intramedullary main nail (1), and the fixing nail (8) passes through the intramedullary main nail (1).

6. The intramedullary nail device for hip and femur fracture surgery according to claim 1, characterized in that: The bottom of the intramedullary main nail (1) is a conical structure with an arc.

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