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Device for correcting spinal deformities

A technology for correcting equipment and spine, applied in medical science, internal bone synthesis, internal fixator, etc., can solve problems such as rapid increase in spinal load

Inactive Publication Date: 2005-11-16
VERSITECH LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0013] Also, because scoliosis correction is done instantaneously and only at the time of surgery, there is no time for the tissues to relax, so the load on the spine grows rapidly

Method used

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  • Device for correcting spinal deformities
  • Device for correcting spinal deformities
  • Device for correcting spinal deformities

Examples

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Embodiment Construction

[0025] Various calibration devices and methods embodying the principles of the present invention will be described below with reference to the accompanying drawings. In the following discussion, the same or similar elements are designated with the same numerical references, and redundant descriptions are omitted.

[0026] The present invention generally relates to the correction of spinal deformities. According to the present invention, a constant or approximately constant force can be provided for spinal correction. Such a corrective force is able to gradually counteract the viscoelastic phenomena of the spine. Thus, the present invention enables complete or substantially complete correction of spinal deformities. The correction may be performed with or without further processing of the correction force after application of the correction force to the deformed spinal column portion.

[0027] For example, a superelastic or pseudoelastic material may be used to provide a con...

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Abstract

The present invention relates generally to a device of and a method for correcting spinal deformities, such as scoliosis and kyphosis. The invention employs the superelasticity or pseudoelasticity, such as found in a nickel-titanium alloy, to provide a continuous, predictable, and controllable correction force and to achieve a gradual and full correction. The correction force can be exerted on the deformed spine either at the time of the spine surgery or after the surgery or both, to afford a full or substantially full correction. The continuous and controllable correction force of the present invention is safer than an instantaneous and large correction force applied only at the time of surgery. Additionally, the continuous and controllable correction force is capable of gradually and fully correcting the spinal deformities without any post-operative manipulation of the correction device or re-operation.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to US Provisional Application Serial No. 60 / 406,019, filed August 25,2002. technical field [0003] The present invention generally relates to devices and methods for correcting spinal deformities. In particular, the present invention relates to devices and methods for progressively correcting spinal deformities. Background technique [0004] Various correction systems are used to correct spinal deformities. For example, the Harrington system, introduced in the early 1950s, used spreader rods on the concave surface of the deformed spine. For unilateral and bilateral thoracic contours, it is advantageous to use the Harrington system and spinal fusion for the treatment of idiopathic scoliosis. However, when the Harrington system is used on the lumbar spine in conjunction with distraction, there is a reduction in lumbar lordosis or a "plate back" effect. Use of segmental sutures (such...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/00A61B17/70
CPCA61B17/7031A61B2017/00867A61B17/7001
Inventor 张文智杨伟国钟志源吕维加
Owner VERSITECH LTD
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