Intramedullary nail device for hip bone and femur fracture operation
Technical Field
The utility model relates to the technical field of medical appliances, in particular to an intramedullary nail device used in hip bone and femur fracture operation.
Background
In fracture treatment, how to reduce and fix according to bone structure is very important, which directly affects the restoration degree of fracture part and becomes the key of operation success or failure. Intramedullary nails are often used to join fractured bones after fractures of the femur of the human body.
The existing intramedullary nail device used in hip bone and femur fracture operation has the following problems that the currently used intramedullary nail often rotates during or after operation, so that the problem of unstable fixation occurs, and the discomfort and even pain are brought to wounded persons.
Disclosure of utility model
The utility model aims to provide an intramedullary nail device used in hip and femur fracture operation, which solves the problems of the prior intramedullary nail device used in hip and femur fracture operation.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
An intramedullary nail device for hip bone and femoral fracture operation, includes the intramedullary nail, the intramedullary nail includes intramedullary main nail, first bone nail, second bone nail and dynamic screw, first screw, second screw and third screw are seted up at intramedullary main nail top, first screw is worn to locate by first bone nail, second screw is worn to locate by second bone nail, dynamic screw wears to locate the third screw, first bone nail, second bone nail cross arrangement, just first bone nail the afterbody of second bone nail is all supported and is established on the dynamic screw.
Preferably, the tail parts of the first bone nail, the second bone nail and the dynamic screw are inclined towards the intramedullary main nail, and the included angle degree formed by the first bone nail and the intramedullary main nail is smaller than that formed by the second bone nail and the intramedullary main nail.
Preferably, the first screw hole, the second screw hole and the third screw hole are sequentially arranged downwards from the top of the intramedullary main nail.
Preferably, the length of the dynamic screw is greater than the length of the first and second bone nails.
Preferably, one end of the bottom of the intramedullary main nail is further provided with a fixing nail, and the fixing nail penetrates through the intramedullary main nail.
Preferably, the bottom of the intramedullary main nail is a conical structure with an arc shape.
Compared with the prior art, the hip joint has the beneficial effects that the hip joint has the functions of inner side support and rotation prevention, can be stably fixed, can avoid hip shortening, and is more stable and safer in use.
Drawings
Fig. 1 is a schematic view of an intramedullary nail device for hip and femoral fracture surgery according to an embodiment of the present utility model.
Detailed Description
The utility model is described in further detail below with reference to the attached drawings and embodiments:
The reference numerals in the attached drawings of the specification comprise 1, an intramedullary main nail, 2, a first bone nail, 3, a second bone nail, 4, a dynamic screw, 5, a first screw hole, 6, a second screw hole, 7, a third screw hole and 8, and a fixing nail.
As shown in fig. 1, an intramedullary nail device for hip bone and femur fracture surgery comprises an intramedullary nail, wherein 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 formed in 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 sequentially arranged downwards from the top of the intramedullary main nail 1.
The first bone nail 2 is arranged in the first screw hole 5 in a penetrating mode, the second bone nail 3 is arranged in the second screw hole 6 in a penetrating mode, the dynamic screw 4 is arranged in the third screw hole 7 in a penetrating mode, the first bone nail 2 and the second bone nail 3 are arranged in a crossed mode, and tail portions of the first bone nail 2 and the second bone nail 3 are propped against the dynamic screw 4. The tail parts of the first bone nail 2, the second bone nail 3 and the dynamic screw 4 are inclined towards the intramedullary main nail 1, and the included angle degree formed by the first bone nail 2 and the intramedullary main nail 1 is smaller than the included angle degree formed by the second bone nail 3 and the intramedullary main nail 1. The first bone nail 2, the second bone nail 3 and the dynamic screw 4 can form a stable triangle structure, so that the intramedullary nail structure is more stable and is not easy to rotate.
The length of the dynamic screw 4 is longer than that of the first bone nail 2 and the second bone nail 3, so that the first bone nail 2 and the second bone nail 3 can be abutted conveniently.
The bottom one end of main nail 1 still is provided with staple 8 in the marrow, and staple 8 runs through main nail 1 in the marrow, plays the fixed effect.
The bottom of the intramedullary main nail 1 is a conical structure with an arc shape.
The method comprises the following specific implementation processes that when the intramedullary main nail 1 is used, a hole is turned at a specified position, the intramedullary main nail 1 is implanted into fractured bones of a patient, a dynamic screw 4 passes through a third screw hole 7, a first screw passes through a first screw hole 5, a second screw passes through a second screw hole 6, the tail parts of the first bone nail 2 and the second bone nail 3 are abutted against the dynamic screw 4 to form a stable triangle structure, and a fixing nail 8 passes through the intramedullary main nail 1 to play a fixing role.
The foregoing is merely exemplary of the present utility model, and specific technical solutions and/or features that are well known in the art have not been described in detail herein. It should be noted that, for those skilled in the art, several variations and modifications can be made without departing from the technical solution of the present utility model, and these should also be regarded as the protection scope of the present utility model, which does not affect the effect of the implementation of the present utility model and the practical applicability of the patent. The protection scope of the present utility model is subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.