[0018] The embodiments of the technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings. The following embodiments are only used to illustrate the technical solutions of the present invention more clearly, and therefore are only used as examples, and cannot be used to limit the protection scope of the present invention.
[0019] [t4]
[0020] figure 1 It is a schematic structural diagram of the present invention, as shown in the figure: a tibial expansion traction reduction support system of this embodiment includes a base and a tibial expansion device installed on the base; the tibial expansion device includes a tibial expansion part and The foot positioning part installed at the front end of the tibial expansion part; the tibial expansion part includes a front support plate 3, a spreader 4, and a rear support plate 6 connected from front to back, and the spreader 4 is connected to the front The support plate 3 and the rear support plate 6 are connected in a manner capable of twisting around the long axis, and the distance between the front support plate 3 and the rear support plate 6 is adjusted by the spreader 4. The base includes a bottom plate 12 and a support assembly , Both lateral sides of the bottom plate 12 are provided with fixing plates 14 to facilitate the fixed installation of the bottom plate 12 and realize the fixation of the entire support system; the support assembly includes a front support frame 11, a U-shaped positioning frame 7 and a rear support rod 8. The front support frame 11 is a door frame, which is rotatably connected to the front end of the bottom plate 12 for supporting and positioning the foot positioning part; the two columns of the door frame and the two U-shaped positioning frames 7 The two uprights and the two rear support rods 8 are all telescopic rods with adjustable height to meet different lengths of limbs; the U-shaped positioning frame 7 and the rear support rod 8 are both hinged to the rear end of the tibial expansion part and support the rear The rods 8 are two and arranged laterally symmetrically. The lower ends of the two rear support rods 8 are hinged to the rear end of the bottom plate 12; the bottom plate 12 is provided with a card slot 13 for engaging and positioning the lower end of the U-shaped positioning frame 7. The card slots 13 are multiple and are evenly arranged along the front and back; the bottom plate 12 is provided with positioning holes communicating with the card slots 13, and the lower end of the U-shaped positioning frame 7 is locked by inserting positioning pins 15 into the corresponding positioning holes , The positioning stability is good, and the U-shaped positioning frame 7 is prevented from accidentally falling off; the U-shaped positioning frame 7 and the rear support rod 8 form a triangular support structure with good stability. The U-shaped positioning frame 7 can be folded after being taken out from the card slot 13. The tibial expansion device is attached to the bottom plate 12, which occupies less space and can be repeatedly sterilized by high temperature and high pressure. The doctor can operate the tool in a sterile state. The structure is simple, the installation completion time is short, and the operation time is saved. The tibia distracting, traction, resetting and supporting system of the present invention takes the side where the foot is in use as the front side, and the side where the corresponding leg is located as the back side, and the long axis refers to the length of the tibial expansion part. The central axis, the long direction of the tibial expansion part is the front and rear direction. When using, tie the calf to the tibia expansion part and tie the foot to the foot positioning part. Adjust the spreader 4 or perform the tibia expansion part as needed. Torsion to achieve anatomical reduction. When the fracture position reaches the doctor's predetermined position; the tibia and femur are raised at the popliteal fossa to support the entire lower limbs. The knee joint can be bent to the maximum, fully revealing the inner and anterior tibia In addition, 90% of the bone surgery of the tibia is carried out through these areas. The tibial expansion part is under the tibia. There is no obstruction to the operation area of the tibia, which is convenient for the operation of the doctor.
[0021] In this embodiment, the spreader 4 includes a scissor bracket, the scissor bracket is provided with a screw rod for adjusting its supporting distance, the scissor bracket is two, and the two scissor brackets are arranged front and rear and connected. Together; form a two-stage structure, which can achieve a large range of length adjustment, which is convenient and accurate to adjust to the length of the affected limb; one end of the screw has a square head structure, which is easy to rotate, and the scissor bracket is similar to the scissor jack structure, self-locking Good performance, easy to use, reliable positioning.
[0022] In this embodiment, the spreader 4 and the front support plate 3 and the rear support plate 6 are respectively connected by a ball joint 5, which can be twisted in a large range, which is convenient for adjusting the rotation and angle of the fracture site during the operation.
[0023] In this embodiment, the foot positioning part includes a foot support plate 10 and a traction base plate 1 which are connected to each other rotatably about a horizontal axis, and the foot support plate 10 is connected to the front end of the front support plate 3 through a ball hinge 5, The traction bottom plate 1 tilts upwards and forms an angle of not less than 90° with the foot support plate 10. When in use, the patient’s heel is placed at the foot support plate 10, and the sole of the foot is attached to the traction bottom plate 1 to The way of binding is fixed, the angle of the traction bottom plate 1 can be adjusted according to needs, and the practicability is strong. The foot positioning part also includes a U-shaped positioning plate 2; the U-shaped positioning plate 2 is fastened and fixed at the lower part of the traction bottom plate 1 and U The two side plates of the type positioning plate 2 extend backwards, which can limit the position of the patient's foot in the lateral direction and ensure accurate positioning; the foot support plate 10 is a concave arc-shaped plate, which is consistent with the heel, and is resistant Good performance; connecting ears 9 are provided on both lateral sides of the traction bottom plate 1 to facilitate binding the feet and prevent the straps from slipping off; the two side plates of the U-shaped positioning plate 2 are both porous plate structures, which can satisfy The doctor performs calcaneal traction during the operation and does not need to deliberately correspond to the traction hole.
[0024] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand: It is still possible to modify the technical solutions described in the foregoing embodiments, or equivalently replace some or all of the technical features; these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the embodiments of the present invention The scope shall be covered by the scope of the claims and specification of the present invention.
