Pressure-adjustable balloon calcaneus clamp

Abstract

The invention relates to a pressure-adjustable balloon calcaneus clamp which is characterized by comprising an ankle restraint ring, a balloon and a liquid injection device, wherein the ankle restraint ring is used for being hooped at the ankle joint so as to prevent the calcaneus clamp from dropping when the balloon is subjected to liquid injection and pressurized; the balloon is stirrup-shaped; the bottom of the balloon is used for coating the lower part of the calcaneus; two sides of the balloon are used for coating the side faces of the calcaneus; the upper ends of the two sides of the balloon are connected onto the ankle restraint ring; medial and lateral malleolus exposure holes are formed in the two sides; a liquid injection joint used for being connected with a liquid injection device is formed in the balloon; the liquid injection device is used for filling liquid into the balloon so as to expand the balloon. The pressure-adjustable balloon calcaneus clamp disclosed by the invention is ingenious in structure, reasonable in design and uniform in pressurization and can assist in restoration of calcaneal fracture blocks or prevent further displacement of the fracture blocks in the process of treating calcaneal fracture, and bruise and necrosis of local skin and other soft tissues can be avoided.

Description

technical field [0001] The invention relates to an auxiliary tool for preventing the displacement of calcaneus fragments when treating calcaneus fractures, in particular to a pressure-adjustable balloon calcaneus clamp, which belongs to the technical field of medical auxiliary equipment. Background technique [0002] Calcaneal fractures are relatively common clinically, accounting for about 60% of tarsal fractures. With the in-depth research on the mechanism of fractures and the popularization of CT examination, surgical treatment of intra-articular fractures involving the calcaneus has become increasingly accepted by people. . However, the treatment of calcaneal fractures is difficult, the recovery after healing is poor, and there are many complications. [0003] At present, there are two main treatment methods: one is open reduction and internal fixation with plates and screws; the other is simple percutaneous poking reduction and internal fixation of the calcaneus. Alth...

AI Technical Summary

Problems solved by technology

Although open reduction with plate and screw internal fixation is the commonly used method at present and the reduction effect is good, wound infection, skin flap necrosis, traumatic osteoarthritis, disuse bone atrophy, Achilles tendon weakness, and loose internal fixation often occur. Neuritis, neuroma, and other complications

However, the simple percutaneous prying reduction and internal fixation of the calcaneus has the advantages of less trauma and faster recovery, but it often affects the surgical effect due to poor reduction.

Because the calcaneus is an irregular weight-bearing bone, when it fractures, the articular surface often collapses and compresses, the calcaneus widens, and deforms in varus and varus. The simple poking reduction is mainly to restore the articular surface of the calcaneus and Bolher's angle, Gissan's Angle, not very good to restore the normal width of the calcaneus and correct the varus deformity, thus affecting the surgical effect and leaving sequelae

In addition, most of the calcaneus clamps used in the past are metal structures. Due to individual differences and the irregular bone of the calcaneus, it is difficult to achieve the purpose of uniform pressure, and there are often complications of skin crushing, and the effect is not good.

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