CN211094607U - Femoral neck fracture positioning device - Google Patents

Abstract

The utility model discloses a femoral neck fracture positioning device, which comprises a device main body, a bottom plate, a stand column, a height adjusting frame, a rotating shaft and a positioning plate, wherein the stand column is arranged, the height adjusting frame is sleeved on the stand column and is fixed with the stand column through a first locking pin, the height of the positioning plate can be adjusted according to actual conditions, the height adjusting frame is adjusted to a proper height, in addition, the angle of the positioning plate can be flexibly adjusted, then a directional Kirschner wire is placed in a Kirschner wire directional hole to determine the positions of the guide wire and a hollow screw on the femur, the guide wire positioning hole which is obliquely arranged can quickly realize the positioning of the guide wire, the positioning is accurate and convenient, the guide wire in a third guide wire positioning hole is fixed inside the femur in a crossed way with the guide wire in the first guide wire positioning hole and the second guide wire positioning hole, the fracture end is fixed through two different plane double supports to prevent the displacement of the fracture end, the fixing effect is good, the recovery of the patient is facilitated, and the popularization and the promotion are facilitated.

Description

Femoral neck fracture positioning device

Technical Field

The utility model relates to the technical field of medical equipment, in particular to femoral neck fracture positioner.

Background

Femoral neck fractures often occur in the elderly, and the incidence of the fractures gradually increases with the life of the elderly, and especially with the aging population, the fractures become a serious social problem. Two main problems of fracture nonunion and avascular necrosis of femoral head exist in clinical treatment. To date, many unsolved problems remain in many aspects such as treatment and outcome of femoral neck fractures. The fracture of the old has two basic factors, the strength of osteoporosis bone is reduced, and the blood nourishing tube holes in the upper area of the femoral neck are densely distributed, so that the biomechanical structure of the femoral neck can be weakened, and the femoral neck is fragile. In addition, the aged hip peripheral muscle group degenerates and reacts slowly, so that the harmful stress of the hip cannot be effectively counteracted, and the hip is subjected to larger stress (2-6 times of body weight) and has complicated and variable local stress, so that no great violence is needed, such as flat slip, falling from the bed or sudden torsion of the lower limbs, and even the fracture can be generated without obvious trauma. The fracture of femoral neck in young and old years is often caused by serious injuries such as traffic accidents or high fall. If the patient is over-stressed for a long time and is working or walking, the patient gradually becomes fractured, which is called fatigue fracture.

In the prior art, when the hollow nail fixing operation is carried out on the femoral neck fracture, a femoral neck guide needle needs to be driven firstly, the problems that the control of the shaft angle and the anteversion angle is difficult and needs to be adjusted for many times when the guide needle is mainly used are solved, and the problems that the operation is troublesome and the operation fails due to the poor positioning precision when the hollow nail is driven on the basis of the guide needle are solved, so that a femoral neck fracture positioning device is needed to be designed to solve the problems.

SUMMERY OF THE UTILITY MODEL

A primary object of the present invention is to provide a femoral neck fracture positioning device, which can effectively solve the problems of the background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a femoral neck fracture positioning device comprises a device main body, a bottom plate, a stand column, a height adjusting frame, a rotating shaft and a positioning plate, wherein the bottom plate is fixedly arranged at the bottom of the device main body, the stand column is fixedly arranged at one side of the bottom plate, the height adjusting frame is sleeved on the stand column and is fixed with the stand column through a first locking pin, the positioning plate is clamped at one side of the height adjusting frame through a clamping block and is hinged with the clamping block through the rotating shaft, the rotating shaft locking pin is arranged at one side of the rotating shaft, the clamping block is fixed with the height adjusting frame through a second locking pin, a Kirschner wire positioning hole is fixedly arranged at one side of the positioning plate, a first guide wire positioning hole, a second guide wire positioning hole and a third guide wire positioning hole are formed in the positioning plate, and the Kirschner wire positioning hole, the first guide wire positioning hole, the second guide wire positioning hole and the third guide, guide pins are placed in the first guide pin positioning hole, the second guide pin positioning hole and the third guide pin positioning hole, hollow screws are arranged on the outer sides of the guide pins, and sleeves are arranged at the contact positions of the hollow screws and the thighbone.

Preferably, the rotating shaft is a damping rotating shaft.

Preferably, the first guide pin positioning hole is parallel to the second guide pin positioning hole, the kirschner wire orientation hole is parallel to the first guide pin positioning hole, an angle formed by the first guide pin positioning hole and the positioning plate is 127 °, and an angle formed by the third guide pin positioning hole and the positioning plate is 150 °.

Preferably, an oriented Kirschner wire is placed in the Kirschner wire oriented hole and is positioned on the front side of the neck of the femur.

Preferably, anti-skidding threads are fixedly arranged on the first locking pin, the second locking pin and the rotating shaft locking pin.

Preferably, the guide pin in the third guide pin positioning hole, the first guide pin positioning hole and the second guide pin positioning hole are fixed in the femur in a crossed manner.

Compared with the prior art, the utility model discloses following beneficial effect has: the utility model discloses a through setting up the stand, the cover is equipped with the altitude mixture control frame on the stand, the altitude mixture control frame is fixed through first fitting pin and stand, can adjust the locating plate height according to actual conditions, adjust the altitude mixture control frame suitable height, the angle of locating plate can be adjusted in a flexible way in addition, then place directional kirschner wire in the directional hole of kirschner wire, with confirm the position of guide pin and hollow screw on the thighbone, the guide pin locating hole that the slope set up, can realize the location to the guide pin fast, it is accurate convenient, guide pin in the third guide pin locating hole and the guide pin cross fixation in first guide pin locating hole and the second guide pin locating hole are inside the thighbone, through the fixed fracture end of two different plane dual braces in order to prevent the fracture end aversion, fixed effectual, be favorable to the patient to resume, be favorable to popularizing and promoting.

Drawings

Fig. 1 is a schematic view of the overall structure of a femoral neck fracture positioning device of the present invention;

FIG. 2 is a schematic view of a guide pin of the femoral neck fracture positioning device of the present invention;

FIG. 3 is a schematic view of a hollow screw of a femoral neck fracture positioning device according to the present invention;

in the figure: 1. a device main body; 2. a base plate; 3. a column; 4. a height adjusting bracket; 5. a first locking pin; 6. a clamping block; 7. a second locking pin; 8. positioning a plate; 9. a rotating shaft; 10. a rotating shaft locking pin; 11. a Kirschner wire directional hole; 12. a first guide pin positioning hole; 13. a second guide pin positioning hole; 14. a third guide pin positioning hole; 15. guiding a needle; 16. a cannulated screw; 17. a sleeve.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

As shown in fig. 1-3, a femoral neck fracture positioning device comprises a device main body 1, a bottom plate 2, a stand column 3, a height adjusting frame 4, a rotating shaft 9 and a positioning plate 8, wherein the bottom plate 2 is fixedly arranged at the bottom of the device main body 1, the stand column 3 is fixedly arranged at one side of the bottom plate 2, the height adjusting frame 4 is sleeved on the stand column 3, the height adjusting frame 4 is fixed with the stand column 3 through a first locking pin 5, the positioning plate 8 is clamped at one side of the height adjusting frame 4 through a clamping block 6, the positioning plate 8 is hinged with the clamping block 6 through the rotating shaft 9, the rotating shaft locking pin 10 is arranged at one side of the rotating shaft 9, the clamping block 6 is fixed with the height adjusting frame 4 through a second locking pin 7, a kirschner wire orientation hole 11 is fixedly arranged at one side of the positioning plate 8, and a first guide pin positioning hole 12, The guide pin positioning structure comprises a second guide pin positioning hole 13 and a third guide pin positioning hole 14, wherein the Kirschner wire positioning hole 11, a first guide pin positioning hole 12, the second guide pin positioning hole 13 and the third guide pin positioning hole 14 are all obliquely arranged, guide pins 15 are placed in the first guide pin positioning hole 12, the second guide pin positioning hole 13 and the third guide pin positioning hole 14, hollow screws 16 are arranged on the outer sides of the guide pins 15, and sleeves 17 are arranged at the contact positions of the hollow screws 16 and the thighbone.

In this embodiment, preferably, the rotating shaft 9 is a damping rotating shaft.

In this embodiment, preferably, the first guide pin positioning hole 12 is parallel to the second guide pin positioning hole 13, the kirschner wire positioning hole 11 is parallel to the first guide pin positioning hole 12, an angle formed by the first guide pin positioning hole 12 and the positioning plate 8 is 127 °, and an angle formed by the third guide pin positioning hole 14 and the positioning plate 8 is 150 °.

In this embodiment, preferably, a directional kirschner wire is placed in the kirschner wire directional hole 11, and the directional kirschner wire is located on the front side of the femoral neck.

In this embodiment, preferably, the first locking pin 5, the second locking pin 7 and the rotating shaft locking pin 10 are all fixedly provided with anti-slip threads.

In this embodiment, preferably, the guide pin 15 in the third guide pin positioning hole 14 is fixed in the femur in a crossing manner with the guide pin 15 in the first guide pin positioning hole 12 and the second guide pin positioning hole 13.

It should be noted that, the utility model relates to a femoral neck fracture positioning device, when using the femoral neck fracture positioning device, firstly, the bottom plate 2 is placed under the leg of the patient to be operated, the leg of the patient can be slightly cushioned, then the first locking pin 5 is loosened, the height adjusting frame 4 is put down, after the height adjusting frame 4 reaches the designated height, the first locking pin 5 is screwed, the second locking pin 7 is loosened, then the fixture block 6 is rotated left and right to finely adjust the position of the positioning plate 8, after the left and right positions are adjusted, the upper and lower angles of the positioning plate 8 are adjusted by rotating the rotating shaft 9, then the rotating shaft 9 is further locked by the rotating shaft locking pin 10 to prevent loosening, then the directional kirschner wire is placed in the directional hole 11 of the kirschner wire, the directional kirschner wire is positioned at the front side of the femoral neck to position the front rake angle of the femoral neck, the first and second guide wires 15 are respectively screwed into the interior of the femoral guide wire through the positioning hole 12 of the first guide wire and the second guide wire 13, then, a third guide pin 15 is screwed into the interior of the femur through a third guide pin positioning hole 14, at this time, the fixation of the guide pin 15 is completed, then the device main body 1 is slowly moved to one side, at this time, only three guide pins 15 are fixed on the femur, then the hollow screw 16 and the sleeve 17 are sleeved on the guide pin 15 and are drilled into the interior of the femur, attention needs to be paid during the fixation, the third guide pin 15 is firstly withdrawn to the outside of the fracture broken end, then the hollow screw 16 is parallelly pressurized and fixed along the first guide pin 15 and the second guide pin 15, then the third guide pin 15 is driven into the hollow screw 16 for fixation, and after the fixation of the hollow screw 16 is completed, the guide pin 15 is carefully taken out.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (6)

1. The utility model provides a femoral neck fracture positioner, includes device main part (1), bottom plate (2), stand (3), altitude mixture control frame (4), pivot (9) and locating plate (8), its characterized in that: the device comprises a device body (1), a bottom plate (2) is fixedly arranged at the bottom of the device body (1), a stand column (3) is fixedly arranged on one side of the bottom plate (2), a height adjusting frame (4) is sleeved on the stand column (3), the height adjusting frame (4) is fixed with the stand column (3) through a first locking pin (5), a positioning plate (8) is clamped on one side of the height adjusting frame (4) through a clamping block (6), the positioning plate (8) is hinged with the clamping block (6) through a rotating shaft (9), a rotating shaft locking pin (10) is arranged on one side of the rotating shaft (9), the clamping block (6) is fixed with the height adjusting frame (4) through a second locking pin (7), a Kirschner wire orientation hole (11) is fixedly arranged on one side of the positioning plate (8), a first guide wire positioning hole (12), a second guide wire positioning hole (13) and a third guide wire positioning hole (14) are formed in the positioning plate, the Kirschner wire positioning hole (11), the first guide pin positioning hole (12), the second guide pin positioning hole (13) and the third guide pin positioning hole (14) are obliquely arranged, guide pins (15) are placed in the first guide pin positioning hole (12), the second guide pin positioning hole (13) and the third guide pin positioning hole (14), the outer side of each guide pin (15) is provided with a hollow screw (16), and a sleeve (17) is arranged at the contact position of each hollow screw (16) and a femur.

2. A femoral neck fracture positioning device as in claim 1 wherein: the rotating shaft (9) is a damping rotating shaft.

3. A femoral neck fracture positioning device as in claim 1 wherein: the first guide pin positioning hole (12) is parallel to the second guide pin positioning hole (13), the Kirschner wire positioning hole (11) is parallel to the first guide pin positioning hole (12), an angle formed by the first guide pin positioning hole (12) and the positioning plate (8) is 127 degrees, and an angle formed by the third guide pin positioning hole (14) and the positioning plate (8) is 150 degrees.

4. A femoral neck fracture positioning device as in claim 1 wherein: an oriented Kirschner wire is placed in the Kirschner wire orientation hole (11), and the oriented Kirschner wire is positioned on the front side of the neck of the femur.

5. A femoral neck fracture positioning device as in claim 1 wherein: and anti-skidding threads are fixedly arranged on the first locking pin (5), the second locking pin (7) and the rotating shaft locking pin (10).

6. A femoral neck fracture positioning device as in claim 1 wherein: and a guide pin (15) in the third guide pin positioning hole (14) is fixed in the femur in a crossed manner with the guide pin (15) in the first guide pin positioning hole (12) and the second guide pin positioning hole (13).

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