CN211658456U

CN211658456U - Thighbone lesser trochanter fixing device

Info

Publication number: CN211658456U
Application number: CN202020150013.8U
Authority: CN
Inventors: 米新江; 王鹏; 王文政
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-01-23
Filing date: 2020-01-23
Publication date: 2020-10-13
Anticipated expiration: 2030-01-23

Abstract

A femur lesser trochanter fixing device effectively solves the problems of infirm fixation and inconvenient fixation of the existing femur lesser trochanter; the upper end of the supporting plate is coaxially provided with a cylinder, a cylindrical rod capable of moving up and down is coaxially arranged in the cylinder, the upper end of the cylindrical rod extends out of the cylinder and is provided with a rectangular box, the upper end of the cylindrical rod is coaxially and rotatably connected with a rotating shaft, the rotating shaft is coaxially provided with a worm wheel positioned in the rectangular box, the rectangular box is rotatably connected with a worm which is in left-right axial direction and meshed with the worm wheel, the upper end of the rotating shaft penetrates through the rectangular box and is provided with a U-shaped plate with an upward opening, the front side and the rear side of the right end of the U-shaped plate are respectively provided with a connecting block, a front axial fixing column and a rear axial fixing column are arranged between the; reduce doctor's the work degree of difficulty, effectively prevent to damage doctor's hand, this simple structure, the design is novel, convenient to use, the practicality is strong.

Description

Thighbone lesser trochanter fixing device

Technical Field

The utility model relates to an orthopedics auxiliary instrument technical field, especially a little rotor of thighbone fixing device.

Background

Intertrochanteric fracture of femur, also called intertrochanteric fracture of femur, refers to fracture of the area between the greater trochanter and the lesser trochanter of femur, and is usually combined with fracture or extensive fracture of the lesser trochanter. The fracture of the lesser trochanter of femur or extensive fracture causes the resistance of femur to external load and the torsion resistance to be obviously reduced, and the proximal fracture segment is subjected to the traction of ilium psoas, gluteus minimus and other external rotary muscle groups to cause the limbs to be in flexion, abduction and external rotary deformity, so that the lesser trochanter is a non-negligible factor in the treatment of fracture between the lesser trochanters of femur.

However, since the small rotor is positioned at the inner rear part and important structures such as femoral artery and vein, femoral nerve and the like are arranged around the small rotor, anatomical reduction and effective fixation of the small rotor are difficult, a doctor usually fixes the small rotor by hands according to experience at present, and then drills holes by using an electric drill.

SUMMERY OF THE UTILITY MODEL

To the above situation, in order to overcome the defects of the prior art, the utility model aims to provide a femoral lesser trochanter fixing device, which effectively solves the problems that the prior femoral lesser trochanter is not firm and inconvenient to fix.

The technical scheme of its solution is, the utility model discloses an upper and lower axial backup pad, the coaxial drum that is equipped with in backup pad upper end, the coaxial cylinder pole that can reciprocate that is equipped with in the drum, cylinder pole upper end is stretched out the drum and is equipped with the rectangle box, the coaxial rotation in cylinder pole upper end is connected with the pivot, coaxial being equipped with in the pivot is located the worm wheel in the rectangle box, rotate on the rectangle box about being connected with axial and with worm wheel meshing's worm, the pivot upper end runs through the rectangle box and is equipped with the U template of opening up, both sides are equipped with the connecting block respectively around the U template right-hand member, axial fixed column around being equipped with between two connecting blocks, both sides are equipped with the fixed band respectively around the U template left end, two fixed.

Compared with the prior art, the beneficial effects of the utility model are that: the rotary drum and the cylinder pole that are equipped with, be convenient for adjust the height of patient's thigh, the pivot and the U template that drive through worm wheel and worm that are equipped with, be convenient for adjust the swing angle of patient's thigh, adjust through height and angle and fix patient's thighbone lesser trochanter in the position that most conveniently goes on fixing, reduce doctor's the work degree of difficulty, effectively prevent to harm doctor's hand, slide rail and spout that are equipped with, prevent that cylinder pole and drum from taking place relative rotation, the crank that is equipped with, the worm is convenient for rotate, this simple structure, the design is novel, high durability and convenient use, therefore, the.

Drawings

Fig. 1 is an isometric view of the present invention.

Fig. 2 is a perspective view of the utility model.

Fig. 3 is an enlarged view of a in fig. 2 according to the present invention.

Fig. 4 is a full-section top axonometric view of the utility model.

Fig. 5 is a top sectional isometric view of the present invention.

Detailed Description

The following describes the embodiments of the present invention in further detail with reference to the accompanying drawings.

By figure 1 to 5, axial backup pad 1 about including, the coaxial drum 2 that is equipped with in backup pad 1 upper end, the coaxial cylinder pole 3 that can reciprocate that is equipped with in the drum 2, cylinder pole 3 upper end is stretched out drum 2 and is equipped with rectangle box 4, the coaxial rotation in cylinder pole 3 upper end is connected with pivot 5, coaxial worm wheel 6 that is located rectangle box 4 that is equipped with in pivot 5, rotate on the rectangle box 4 and be connected with about axial and with worm wheel 6 meshed worm 7, pivot 5 upper end runs through rectangle box 4 and is equipped with U template 8 that the opening faces upward, both sides are equipped with connecting block 9 respectively around the U template 8 right-hand member, axial fixed column 10 around being equipped with between two connecting blocks 9, both sides are equipped with fixed band 11 respectively around the U template 8 left end, two fixed band 11 free ends can follow and pass between fixed column 10 and the U template 8.

In order to move the cylindrical rod 3 up and down, a rotating cylinder 12 is coaxially and rotatably connected to the upper end of the cylinder 2 and is in threaded connection with the cylindrical rod 3.

In order to enable the cylindrical rod 3 to only move up and down, the left end and the right end of the cylindrical rod 3 are respectively provided with a sliding groove 13 in the vertical direction, the left side and the right side of the inner edge surface of the cylinder 2 are respectively provided with a sliding rail 14 in the vertical direction, and the two sliding rails 14 are respectively in sliding connection with the sliding grooves 13 on the corresponding sides.

For the convenience of the use of the fixing band 11, the outer surfaces of the free ends of the two fixing bands 11 are provided with first magic tapes 15, the outer surfaces of the two fixing bands 11 are provided with second magic tapes 16 positioned on the left side of the fixing column 10, and the two second magic tapes 16 can be respectively bonded with the first magic tapes 15 on the corresponding sides.

In order to rotate the worm 7, the right end of the worm 7 penetrates through the rectangular box 4 and is provided with a crank 17.

In order to facilitate the rotation of the drum 12, a plurality of swing rods 18 are uniformly distributed along the circumferential direction of the drum 12 on the outer peripheral surface of the drum 12.

In order to increase the comfort of the patient, a cushion 19 is arranged in the U-shaped plate 8, and the upper end surface of the cushion 19 is an arc surface which is axially inwards concave in the front-back direction.

When the utility model is used, firstly, the device is placed below the thigh of a patient, the two first magic tapes 15 and the second magic tapes 16 which are adhered together are opened, the thigh of the patient is placed on the soft cushion 19 in the U-shaped plate 8, the two fixing bands 11 are enabled to respectively bypass the thigh of the patient and pass through the gap between the fixing column 10 and the U-shaped plate 8 from top to bottom, after the tightness of the two fixing bands 11 is adjusted, the two first magic tapes 15 are respectively adhered to the second magic tapes 16 on the corresponding sides, and the fixing of the thigh of the patient is completed;

the swing rod 18 on the right side is rotated clockwise, the swing rod 18 drives the rotary drum 12 to rotate clockwise on the cylinder 2, the rotary drum 12 drives the cylindrical rod 3 to move upwards, the cylindrical rod 3 drives the two sliding grooves 13 to move upwards, the two sliding rails 14 respectively slide in the sliding grooves 13 on the corresponding sides, so that the cylindrical rod 3 can only move upwards, the cylindrical rod 3 drives the rectangular box 4 and the rotating shaft 5 to move upwards, the rotating shaft 5 drives the U-shaped plate 8 to move upwards, the U-shaped plate 8 drives the thighs of a patient to move upwards through the cushion 19, when the small rotors on the thighs of the patient and the connecting points are at the same height, the swing rod 18 stops rotating, and the thighs of the patient are kept at the current height due to the self-locking property of threaded;

clockwise rotation crank 17, crank 17 drives worm 7 clockwise rotation on rectangle box 4, worm 7 drives worm wheel 6 anticlockwise rotation, worm wheel 6 drives 5 anticlockwise rotations of pivot, pivot 5 drives 8 anticlockwise rotations of U template, U template 8 drives patient's thighbone lesser trochanter swing left through cushion 19, reach best fixed position until patient's thighbone lesser trochanter, stop rotating crank 17 this moment, because the auto-lock nature of worm wheel 6 and worm 7 structure, so patient's thighbone lesser trochanter will keep at the current position, fix through the spike after the doctor punches to thighbone lesser trochanter.

Claims

1. A femur lesser trochanter fixing device comprises a supporting plate (1) which is axial up and down, and is characterized in that a cylinder (2) is coaxially arranged at the upper end of the supporting plate (1), a cylinder rod (3) which can move up and down is coaxially arranged in the cylinder (2), a rectangular box (4) is arranged at the upper end of the cylinder rod (3) and extends out of the cylinder (2), a rotating shaft (5) is coaxially and rotatably connected with the upper end of the cylinder rod (3), a worm wheel (6) which is positioned in the rectangular box (4) is coaxially arranged on the rotating shaft (5), a worm (7) which is axial left and right and is meshed with the worm wheel (6) is rotatably connected on the rectangular box (4), a U-shaped plate (8) with an upward opening is arranged at the upper end of the rotating shaft (5) and penetrates through the rectangular box (4), connecting blocks (9) are respectively arranged at the front, fixing belts (11) are respectively arranged on the front side and the rear side of the left end of the U-shaped plate (8), and the free ends of the two fixing belts (11) can penetrate through the fixing column (10) and the U-shaped plate (8).

2. A femoral lesser trochanter fixation device as in claim 1 wherein the upper end of the cylinder (2) is coaxially and rotatably connected to a rotating barrel (12) which is threadedly connected to the cylindrical rod (3).

3. The femoral lesser trochanter fixing device according to claim 1, wherein the left and right ends of the cylindrical rod (3) are respectively provided with a vertical sliding groove (13), the left and right sides of the inner edge surface of the cylinder (2) are respectively provided with a vertical sliding rail (14), and the two sliding rails (14) are respectively connected with the corresponding sliding grooves (13) in a sliding manner.

4. The femur lesser trochanter fixing device according to claim 1, characterized in that the outer surface of the free ends of the two fixing straps (11) is provided with a first magic tape (15), the outer surface of the two fixing straps (11) is provided with a second magic tape (16) positioned at the left side of the fixing post (10), and the two second magic tapes (16) can be respectively adhered to the first magic tapes (15) at the corresponding sides.

5. A femoral lesser trochanter fixation device as in claim 1, characterized in that the right end of the worm (7) extends through the rectangular box (4) and is provided with a crank (17).

6. A femoral lesser trochanter fixation device as claimed in claim 2 wherein the outer peripheral surface of the rotating cylinder (12) is provided with a plurality of swing levers (18) evenly distributed along its circumference.

7. The femoral lesser trochanter fixing device of claim 1, wherein the U-shaped plate (8) is provided with a soft cushion (19), and the upper end surface of the soft cushion (19) is an arc surface which is axially concave inwards in the front-back direction.