CN-224220214-U - Auxiliary therapeutic device for fracture of rear ankle

Abstract

The utility model discloses a rear ankle fracture auxiliary treatment device which is a self-shaping anti-slip steel plate, wherein the self-shaping anti-slip steel plate is matched with human rear ankle bones, a plurality of screw holes are formed in the self-shaping anti-slip steel plate, the self-shaping anti-slip steel plate is designed to enable the steel plate to be combined with an ankle joint of a patient to fix the ankle joint, the rear ankle fracture auxiliary treatment device is in line with the anatomical form of the rear ankle, a ligament structure is not interfered, self-shaping can be carried out in operation, low notch is reduced or even eliminated, soft tissue irritation to rear tendons and the like is effectively reduced, the medical cost is effectively reduced, and the device has the characteristics of accelerating the rehabilitation process of a wounded, being good in fixing effect and being good in self-plasticity.

Inventors

• YANG YUNFENG
• ZHANG YI
• LI YONGQI
• LI BING
• LIAO YI
• XIA JIANG
• ZHOU HAICHAO
• HE WENBAO
• LI ZHENDONG
• CHEN CHENG

Assignees

• 上海市同济医院

Dates

Publication Date

20260512

Application Date

20231127

Claims (8)

1. 1. The auxiliary treatment device for the rear ankle fracture is characterized by being a self-shaping anti-slip steel plate, wherein the self-shaping anti-slip steel plate is matched with the rear ankle fracture of a person, and a plurality of screw holes are formed in the self-shaping anti-slip steel plate; The proximal section of the self-shaping anti-slip steel plate is long and dry, the distal end is wide, the distal end is twisted forwards and protrudes backwards in an arc shape, the outer side of the distal end is protruded relatively to the inner side, and the shape of the self-shaping anti-slip steel plate is the same as the anatomical shape of the rear of the distal end of the human tibia.
2. 2. The posterior ankle fracture auxiliary treatment device according to claim 1, wherein the thickness of the self-shaping anti-slip steel plate gradually decreases from the proximal end to the distal end.
3. 3. The auxiliary treatment device for the rear ankle fracture according to claim 1, wherein the length of the self-shaping anti-slip steel plate is matched with the highest point of the tibial dead center of the rear tibial ligament of the human lower tibiofibular, and the width of the self-shaping anti-slip steel plate is matched with the widths of the tibial dead centers of the rear ligament of the lower tibiofibular and the transverse ligament of the lower tibiofibular.
4. 4. The auxiliary therapeutic apparatus for the rear ankle fracture according to claim 1, wherein the screw hole comprises a sliding hole, an adjustable locking screw hole and a common locking screw hole.
5. 5. The auxiliary therapeutic apparatus for postankle fracture according to claim 4, wherein the adjustable locking screw hole is formed in the distal end of the steel plate, 3 holes and 2 holes are formed in sequence from the far side to the near side, the diameters of the 3.5mm screw holes are respectively, and the screw hole of the adjustable locking screw hole allows the screw to be universally adjusted at 30 degrees.
6. 6. The auxiliary treatment device for the rear ankle fracture according to claim 4, wherein the common locking screws are arranged on the diaphysis of the steel plate in a single row, and the number of the common locking screws is matched with the length of the steel plate.
7. 7. The auxiliary therapeutic device for the rear ankle fracture according to claim 6, wherein the sliding hole is formed in the middle section of the steel plate, and the length of the sliding hole is 3-4 times the diameter of the common locking screw hole.
8. 8. The auxiliary treatment device for the rear ankle fracture according to any one of claims 1 to 7, wherein the self-shaping anti-slip steel plate is made of a titanium alloy material.

Description

Auxiliary therapeutic device for fracture of rear ankle Technical Field The utility model belongs to the technical field of medical appliances, and particularly relates to an auxiliary treatment device for rear ankle fracture. Background The posterior ankle is a posterior component of the distal tibial fibula complex and is an important maintenance structure for the stability of the ankle joint. In the process of human standing and heavy walking, the ankle joint bears a load which is about 3-5 times of the weight, the proportion of ankle fracture after ankle fracture is combined is higher and is about 7% -44%, in recent years, the ankle fracture which involves the rear ankle has a trend of increasing, and how to enable a patient to obtain maximum functional rehabilitation after injury is a problem which must be solved in clinical treatment. The prognosis of the ankle fracture patient with the ankle fracture is worse, the incidence rate of postoperative complications and postoperative traumatic ankle arthritis is higher, particularly the occurrence rate of the postoperative pilot fracture caused by larger violent injuries, the fracture block is greatly displaced due to the fact that the ankle joint is subjected to vertical and torsional violent injuries at the same time, obvious steps appear on the ankle joint surface, the ankle fracture block and the ankle joint surface are usually required to be subjected to operation dissection reduction, and the normal functions of the ankle joint can be finally restored by using proper endophytes, meanwhile, the ankle fracture is also accompanied with the ankle fracture of the rear ankle fracture, the clinical prognosis is obviously worse, the fracture needs to be fixed through operation reduction, the proper inner ankle fracture is the most common lower limb fracture, the ankle fracture accompanied with the rear ankle fracture is obviously worse, the fracture needs to be fixed through operation reduction, and the proper internal fixation is the key for improving the curative effect of the ankle fracture operation. At present, clinically used internal fixing materials for the rear ankle have no three-dimensional design based on the anatomical characteristics of the national rear ankle, or are simple combination of two common steel plates, and have larger defects and deficiencies when clinically used, such as (1) The shape of the steel plate does not accord with the anatomical features of the national ankle, all fracture blocks cannot be fixed, and a plurality of steel plates are required to be used in combination; (2) The steel plate is too large and too thick, the molding is difficult in the operation, and irritation exists on soft tissues such as tendon nerve vessels at the rear; (3) The fixed screw hole site can not meet the requirement of fine adjustment in the operation, is easy to cause repeated operation in the operation, increases the operation time and the perspective times, and brings ray risks to patients and operators; Therefore, there is a need to design a simple and practical auxiliary treatment device for ankle fracture, which solves the problems in the prior art, accelerates the recovery process of wounded and improves the social and economic benefits. Disclosure of utility model Aiming at the defects existing in the prior art, the utility model aims to provide the auxiliary treatment device for the fracture of the rear ankle, by designing the self-plastic anti-slip steel plate, the steel plate can be combined with the ankle joint of a patient to fix the ankle joint, the anatomical form of the rear ankle is met, the ligament structure is not disturbed, the self-molding can be realized in the operation, the soft tissue irritation to rear tendons and the like is reduced or even eliminated through low-notch, the medical cost is effectively reduced, and the auxiliary treatment device has the characteristics of accelerating the rehabilitation process of wounded, and being good in fixing effect and self-plasticity. In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: The auxiliary treatment device for the rear ankle fracture is a self-shaping anti-slip steel plate, the self-shaping anti-slip steel plate is matched with the rear ankle fracture of a person, and a plurality of screw holes are formed in the self-shaping anti-slip steel plate. Preferably, the near section of the self-shaping anti-slip steel plate is long and dry, the far end is wide, the far end is twisted forwards and is bulged backwards in an arc shape, the outer side of the far end is protruded relatively to the inner side, and the shape of the self-shaping anti-slip steel plate is the same as the anatomical shape behind the far end of the human tibia. Preferably, the thickness of the self-shaping anti-slip steel plate gradually decreases from the proximal end to the distal end. Preferably, the length of the self-shaping anti-slip steel plate is