Expansion balloon and medical device used for discoplasty

Abstract

The invention belongs to the field of medical instruments, and particularly relates to an expansion balloon and medical device used for discoplasty. The expansion balloon provided by the invention comprises a compressed, collapsed or folded balloon main body; the balloon main body is annular after a pressurizing medium fills to make the balloon main body expand; an annular first cavity is arrangedin the balloon main body, and is used for injecting bone cement; the bone cement is supported in intervertebral disc tissue space after being solidified, and the balloon can prevent the problem of leakage and dispersion of the bone cement; the interior of the balloon main body is provided with a second cavity penetrating through the balloon main body; the second cavity is used for injecting a material with an osteogenesis effect and/or an osteoinduction effect; after the bone cement fills to make the balloon expand, the material with the osteogenesis effect and/or the osteoinduction effect isinjected into the second cavity penetrating through the balloon main body through a second injection port; and the material injected into the second cavity forms osteoblasts in the cavity in the intervertebral disc or induces local cells of a human body to differentiate to form the osteoblasts, so that the balloon and the upper intervertebral disc and the lower intervertebral disc are fused intoa whole.

Description

technical field [0001] The invention belongs to the field of medical devices, and in particular relates to an inflatable balloon and a medical device for intervertebral disc angioplasty. Background technique [0002] The earliest and first report of percutaneous bone cement discoplasty (PCD) was in 2015. P.P. Varga from Hungary (Hungary) first reported and named it in Orthopade. [0003] PCD is an effective minimally invasive approach for the treatment of axial low back pain and dysfunction caused by severe lumbar degenerative disc disease. At the same time, the deformity of the lumbar spine can be corrected after surgery, and the effect of indirect decompression of the intervertebral foramen can be achieved. It is especially suitable for elderly patients who are not easy to perform open surgery. Postoperatively, the sacral inclination angle and pelvic inclination angle were significantly reduced, and the lumbar segmental and overall kyphosis, intervertebral disc and inter...

AI Technical Summary

Problems solved by technology

[0004] However, there is still a certain probability of bone cement leakage during surgery. In theory, bone cement leakage may compress nerve roots or spinal cord

[0005] In addition, the biological combination of bone cement and human tissue is not good, after a period of support, the connection with the original intervertebral disc tissue is not tight and not firm enough

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