U-shaped disc-shunt and delivery device

A - Human Necessities – 61 – B

Patent

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Details

A61B 17/06 (2006.01) A61F 2/44 (2006.01) A61L 27/28 (2006.01)

Patent

CA 2637029

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 (126) 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.

Le disque intervertébral ne contient aucun vaisseau sanguin. Les nutriments et les déchets sont diffusés principalement à travers les corps vertébraux adjacents. Avec l'âge, des couches calcifiées se forment entre le disque et les corps vertébraux, bloquant la diffusion. Le disque commence à manquer de nutrition et à s'aplatir. Le poids passe anormalement du disque aux facettes articulaires, provoquant une tension mécanique et des maux de dos. Sous des conditions anaérobies, de l'acide lactique est produit, provoquant une irritation acide et des douleurs non spécifiques. L'invention concerne une dérivation de disque en forme de U, livrée et scellée dans le disque dégénéré simplement par une piqûre d'aiguille puis son retrait, permettant de faire passer des nutriments de la circulation corporelle dans le disque avasculaire. Un approvisionnement continuel en nutriments augmente la biosynthèse de glycosaminoglycanes sulfatées retenant l'eau, provoquant ainsi une pression par gonflement dans le disque. Le poids repasse des facettes articulaires au disque régénéré, éliminant les maux de dos. Grâce à l'oxygène transporté à travers la dérivation, la production anaérobie d'acide lactique est minimisée. De plus, l'acide lactique résiduel est expulsé, à travers la dérivation en U lors de la compression du disque, dans la circulation corporelle afin de soulager des douleurs non spécifiques.

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