Non-traction bed manual reduction pfna internal fixation treatment of intertrochanteric fracture equipment

Abstract

The utility model relates to medical equipment field, concretely discloses a non -traction bed manual reduction PFNA internal fixation treatment femoral intertrochanteric fracture equipment, including femoral trochanter main nail and femoral neck main screw, the upper of femoral trochanter main nail is equipped with horizontal connecting piece, the horizontal connecting piece includes the horizontal connecting rod connected with femoral trochanter main nail, one end of horizontal connecting rod is connected with first joint. The adjusting hole and the limiting groove of angle positioner are used for accurately setting the nail angle and position of tail cap, after being fixed by locking pin, accurate guidance is provided for femoral neck main screw implantation, the accuracy of internal fixation implantation is greatly improved, the operation risk caused by positioning deviation is reduced, the fracture site of patient is better healed, and simultaneously modular component design is adopted, in the non -traction bed environment, femoral trochanter main nail is implanted, the horizontal connecting piece and the nail auxiliary part are installed in turn according to the order, the accessibility of treatment is improved, and the waiting treatment time of patient is shortened.

Description

Technical Field

[0001] This utility model relates to the field of medical equipment, and specifically discloses a non-traction bed manual reduction and PFNA internal fixation device for treating intertrochanteric fractures of the femur. Background Technology

[0002] Intertrochanteric fractures of the femur are a common type of fracture in the elderly population, often caused by osteoporosis and low-energy trauma. With the increasing aging of the population, the incidence of this type of fracture is showing an upward trend year by year. Currently, PFNA internal fixation has become the mainstream treatment for intertrochanteric fractures of the femur due to its biomechanical advantages. It can effectively reduce the patient's bed rest time, reduce the risk of complications, and promote postoperative recovery.

[0003] PFNA internal fixation surgery heavily relies on a traction bed to complete the reduction and fixation operations. Although the traction bed has precise traction and reduction functions, the equipment is large and complex in structure. At the same time, the operation procedure of the traction bed is cumbersome and requires a high level of professional skills from medical staff. In emergency treatment scenarios, the complex operation may delay the best treatment time. Therefore, a non-traction bed manual reduction PFNA internal fixation device for treating intertrochanteric fractures of the femur is needed to solve this problem. Utility Model Content

[0004] This invention proposes a non-traction bed manual reduction and PFNA internal fixation device for treating intertrochanteric fractures of the femur. By adjusting the angle and position of the tail cap screw in the limiting groove through the adjustment hole, it can provide precise guidance for the implantation of the femoral neck main screw, greatly improve the accuracy of internal fixation implantation, solve the surgical risks caused by positioning deviation, and promote better healing of the fracture site.

[0005] This invention is implemented as follows: a non-traction bed manual reduction and PFNA internal fixation device for treating intertrochanteric fractures of the femur, comprising a femoral trochanteric main nail and a femoral neck main screw, with a horizontal connector provided above the femoral trochanteric main nail.

[0006] As a preferred embodiment of the non-traction bed manual reduction and PFNA internal fixation device for treating intertrochanteric fractures of the femur according to this utility model, the horizontal connector includes a horizontal connecting rod connected to the femoral trochanteric nail, and one end of the horizontal connecting rod is connected to a first connector.

[0007] As a preferred embodiment of the non-traction bed manual reduction and PFNA internal fixation device for treating intertrochanteric fractures of the femur according to this utility model, the other end of the horizontal connecting rod is connected to a second connector, the outer surface of the second connector is engaged with a first positioning seat, and the outer surface of the second connector is engaged with a second positioning seat.

[0008] As a preferred embodiment of the non-traction bed manual reduction and PFNA internal fixation device for treating intertrochanteric fractures of the femur according to this utility model, the bottom surface of the second positioning seat is connected to a screw-down auxiliary component.

[0009] As a preferred embodiment of the non-traction bed manual reduction PFNA internal fixation device for treating intertrochanteric fractures of the femur according to this utility model, the screw-down auxiliary component includes an angle limiter connected to a second positioning seat. The inner wall of the angle limiter is provided with a limit groove, and the front of the angle limiter is provided with a set of adjustment holes. A locking pin is threaded to the inner wall of one of the adjustment holes, and a tail cap pressure nail is engaged with the inner wall of the limit groove.

[0010] As a preferred embodiment of the non-traction bed manual reduction and PFNA internal fixation device for treating intertrochanteric fractures of the femur according to this utility model, the back of the screw-down auxiliary component is connected to a parameter label.

[0011] The beneficial effects of this utility model are:

[0012] In use, through the cooperation of the horizontal connector and the screw-down auxiliary component, the doctor can flexibly adjust the positions of the first and second positioning seats according to the surgical needs. The adjustment holes and limiting grooves of the angle limiter are used to precisely set the angle and position of the tail cap screw. After being fixed by the locking pin, it provides precise guidance for the implantation of the femoral neck main screw, significantly improving the accuracy of internal fixation implantation, reducing surgical risks caused by positioning deviations, and promoting better healing of the fracture site. Simultaneously, the modular component design allows for sequential implantation of the femoral trochanteric main screw, installation of the horizontal connector, and the screw-down auxiliary component in a non-traction bed environment, improving treatment accessibility and shortening patient waiting time. The synergistic fixation of the femoral trochanteric main screw and the femoral neck main screw, combined with the precise positioning and stable connection of the horizontal connector and the screw-down auxiliary component, forms a stable internal fixation system that effectively supports the fracture site, reduces the risk of postoperative fracture displacement, creates conditions for early rehabilitation training, and helps improve patient rehabilitation outcomes and quality of life. Attached Figure Description

[0013] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0014] Figure 1 This is a three-dimensional structural diagram of a non-traction bed manual reduction and PFNA internal fixation device for treating intertrochanteric fractures of the femur according to the present invention;

[0015] Figure 2This is a three-dimensional structural diagram of the femoral trochanteric nail in a non-traction bed manual reduction and PFNA internal fixation device for treating intertrochanteric fractures of the femur according to this utility model.

[0016] Figure 3 This is a three-dimensional structural diagram of the angle limiter in the non-traction bed manual reduction PFNA internal fixation device for treating intertrochanteric fractures of the femur according to this utility model;

[0017] Figure 4 This is a three-dimensional structural diagram of the horizontal connecting rod in the non-traction bed manual reduction and PFNA internal fixation device for treating intertrochanteric fractures of the femur according to this utility model.

[0018] The markings in the diagram are: 1. Femoral trochanteric nail; 2. Femoral neck screw; 3. Horizontal connector; 301. Horizontal connecting rod; 302. Second connector; 303. First connector; 304. First positioning seat; 305. Second positioning seat; 4. Screw lowering auxiliary component; 401. Angle limiter; 402. Adjustment hole; 403. Limiting groove; 404. Locking pin; 405. Tail cap pressure screw; 5. Parameter label. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments to aid in understanding its content. Unless otherwise specified, the methods used in this invention are conventional methods; the raw materials and apparatus used, unless otherwise specified, are conventional commercially available products.

[0020] Please see Figure 1-4 A non-traction bed manual reduction and internal fixation device for treating intertrochanteric fractures of the femur includes a femoral trochanteric main nail 1 and a femoral neck main screw 2, with a horizontal connector 3 above the femoral trochanteric main nail 1.

[0021] In this embodiment: the angle and position of the tail cap pressure pin 405 in the limiting groove 403 are adjusted by adjusting the adjustment hole 402. After the adjustment is completed, the locking pin 404 is screwed into the corresponding adjustment hole 402 to fix the tail cap pressure pin 405 and make it in the accurate screw guide position. After being fixed by the locking pin 404, it provides precise guidance for the implantation of the femoral neck main screw 2, which greatly improves the accuracy of internal fixation implantation and reduces the surgical risk caused by positioning deviation.

[0022] As a technical optimization of this utility model, the horizontal connector 3 includes a horizontal connecting rod 301 connected to the femoral trochanteric nail 1. One end of the horizontal connecting rod 301 is connected to a first connector 303, and the other end of the horizontal connecting rod 301 is connected to a second connector 302. A first positioning seat 304 is snapped onto the outer surface of the second connector 302, and a second positioning seat 305 is snapped onto the outer surface of the second connector 302. A nail-lowering auxiliary component 4 is connected to the bottom surface of the second positioning seat 305.

[0023] In this embodiment: the horizontal connecting rod 301 can connect the femoral trochanteric nail 1 and the femoral neck screw 2; the second connector 302 and the second positioning seat 305 can quickly connect the femoral trochanteric nail 1 and the femoral neck screw 2; and the screw-down auxiliary component 4 can improve the screw-down accuracy of the device.

[0024] As a technical optimization of this utility model, the lower nail auxiliary component 4 includes an angle limiter 401 connected to the second positioning seat 305. The inner wall of the angle limiter 401 is provided with a limit groove 403. A set of adjustment holes 402 are provided on the front side of the angle limiter 401. A locking pin 404 is threadedly connected to the inner wall of one of the adjustment holes 402. A tail cap pressure pin 405 is snapped into the inner wall of the limit groove 403. A parameter label 5 is connected to the back side of the lower nail auxiliary component 4.

[0025] In this embodiment: the locking pin 404, which works with the adjustment hole 402, can limit the position of the tail cap pin 405 in the limiting groove 403. The parameter label 5 can improve the identification of the equipment.

[0026] The working principle and usage process of this utility model are as follows: First, the femoral trochanteric main nail 1 is implanted into the patient's femoral trochanteric region. Through a suitable surgical incision, the femoral trochanteric main nail 1 is accurately inserted into the predetermined position. Next, the horizontal connector 3 is installed, and the horizontal connecting rod 301 is connected and fixed to the femoral trochanteric main nail 1 to ensure a firm connection. According to surgical requirements, the positions of the first positioning seat 304 and the second positioning seat 305 on the second connector 302 are adjusted to initially determine the installation position of the nail-lowering auxiliary component 4. Subsequently, the nail-lowering auxiliary component 4 is installed, and the angle limiter 401 is connected to the second positioning seat 305. According to the screw implantation angle determined preoperatively, the angle and position of the tail cap pressure nail 405 in the limiting groove 403 are adjusted through the adjustment hole 402. After adjustment, the locking pin 404 is screwed into the corresponding adjustment hole 402 to fix the tail cap pressure nail 405, placing it in the accurate nail-lowering guide position.

[0027] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] However, the above description is only a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.

Claims

1. A non-traction bed-based manual reduction and PFNA internal fixation device for treating intertrochanteric fractures of the femur, characterized in that: It includes a femoral trochanteric nail (1) and a femoral neck screw (2), with a horizontal connector (3) above the femoral trochanteric nail (1).

2. The non-traction bed manual reduction and PFNA internal fixation device for treating intertrochanteric fractures of the femur according to claim 1, characterized in that: The horizontal connector (3) includes a horizontal connecting rod (301) connected to the femoral trochanteric nail (1), and one end of the horizontal connecting rod (301) is connected to a first connector (303).

3. The non-traction bed manual reduction and PFNA internal fixation device for treating intertrochanteric fractures of the femur according to claim 2, characterized in that: The other end of the horizontal connecting rod (301) is connected to a second connector (302), the outer surface of the second connector (302) is engaged with a first positioning seat (304), and the outer surface of the second connector (302) is engaged with a second positioning seat (305).

4. The non-traction bed manual reduction and PFNA internal fixation device for treating intertrochanteric fractures of the femur according to claim 3, characterized in that: The bottom surface of the second positioning seat (305) is connected to a lower nail auxiliary component (4).

5. The non-traction bed manual reduction and PFNA internal fixation device for treating intertrochanteric fractures of the femur according to claim 4, characterized in that: The lower nail auxiliary component (4) includes an angle limiter (401) connected to the second positioning seat (305). The inner wall of the angle limiter (401) is provided with a limit groove (403). The front of the angle limiter (401) is provided with a set of adjustment holes (402). The inner wall of one of the adjustment holes (402) is threaded with a locking pin (404). The inner wall of the limit groove (403) is engaged with a tail cap pressure nail (405).

6. The non-traction bed manual reduction and PFNA internal fixation device for treating intertrochanteric fractures of the femur according to claim 4, characterized in that: The back of the nail-down auxiliary component (4) is connected to a parameter label (5).

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