Non-contact electromagnetic-drive noninvasive growing rod for scoliosis correction

Abstract

The invention relates to a non-contact electromagnetic-drive noninvasive growing rod for scoliosis correction. The non-contact electromagnetic-drive noninvasive growing rod comprises a in-vivo electromagnetic-drive extension mechanism connected between the apical vertebra and the caudal vertebra and can extend or retract under driving of in-vitro control electromagnetic field to achieve supportingto lateral concave or pressurizing to lateral convex of the vertebral column so as to complete dynamic correction of scoliosis. Compared with the prior art of growing rods, the non-contact electromagnetic-drive noninvasive growing rod has the advantages that it can achieve scoliosis correction for patients who reject the invasive surgical operation, reduce surgical wound and incidence rate of other complications such as respiratory tract infection and risk of anesthesia caused in frequent operations, and also decrease financial burden; besides, it can be opened slightly frequently, which canreduce ligamentous and spinal injury caused by spine rigidity and spontaneous fusion as compared with the conventional disposable violet opening; and it ca complete opening even when the patient is ina waking state, nerve testing is omitted, and safety is improved.

Description

technical field [0001] The invention relates to a medical device, in particular to a non-contact electromagnetically driven non-invasive growth rod for scoliosis correction. Background technique [0002] Children's scoliosis is a kind of orthopedic deformity that seriously affects children's growth and development. The impact on children is not only the appearance, but when the deformity is serious, scoliosis will also have a great impact on cardiopulmonary development. Surgery should be considered when scoliosis in children is not suitable for non-surgical treatment or non-surgical treatment can not stop the scoliosis from worsening. The development of modern spine surgery has extended the treatment of scoliosis to three-dimensional space, that is, the treatment of three-dimensional structures in coronal, sagittal and horizontal positions. However, this is still not enough in the treatment of scoliosis in children, children also have a fourth dimension, that is, children's...

AI Technical Summary

Problems solved by technology

However, the problems arising from such frequent surgical procedures are high infection rate and severe scars. Frequent surgeries will promote spontaneous fusion of the posterior spine and costovertebral joints, increasing the stiffness of scoliosis. There is a problem that cannot be extended; at the same time, each operation makes the parents bear a great psychological and economic burden, and also creates a huge psychological and physical burden on the child.

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