US Patent 9131955 Anesthesia in bone joints

A medical needle, kit, and pharmacological composition of matter comprising a local anesthetic pertaining to inserting a needle percutaneously in a patient is disclosed. A method is disclosed with the needle having a leading apex that is dulled to restrict penetration through articular cartilage, advancing the needle leading apex into a bone joint and stopping said needle leading apex short of substantially penetrating bone joint articular cartilage, and injecting through the needle lumen a pharmacological composition of matter comprising a local anesthetic and out of said opening and into the bone joint to contribute to the anesthetizing of nerves near said bone joint.