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U-SHAPED DISC-SHUNT AND DELIVERY DEVICE 发明申请

2022-12-28 2190 680K 0

专利信息

申请日期 2025-06-26 申请号 WOUS07003194
公开(公告)号 WO2007089947A2 公开(公告)日 2007-08-09
公开国别 WO 申请人省市代码 全国
申请人 YEUNG Jeffrey E; YEUNG Teresa T
简介 The intervertebral disc contains no blood vessels. Nutrients and waste are diffused mainly through adjacent vertebral bodies. As we age, calcified layers form between the disc and vertebral bodies, blocking diffusion. The disc begins to starve and flatten. The weight shifts abnormally from disc to the facet joints causing strain and back pain. Under anaerobic conditions, lactic acid is produced causing acidic irritation and unspecific pain. A U-shaped disc shunt is delivered into and sealed within the degenerated disc simply by needle puncturing and withdrawal, to draw nutrients from bodily circulation into the avascular disc. A continual supply of nutrients increases biosynthesis of the water- retaining sulfated glycosaminoglycans, hence swelling pressure within the disc. The weight is re-shifted from the facet joints to the regenerated disc, alleviating back pain. With oxygen transported through the shunt, anaerobic production of lactic acid is minimized. In addition, the residual lactic acid is expelled through the U-shaped shunt during disc compression into bodily circulation to alleviate unspecific pain.


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