Patent ID: 9131955
Filing Date: 2015-09-15
Classification: A61B,A61M

Abstract:
1. A method for anesthetizing nerves, comprising the acts of: inserting a needle percutaneously in a patient, said needle having a lumen with a stylet therein, said stylet or said needle and said stylet collectively form a leading apex that is dulled to restrict penetration through articular cartilage, said needle further having said lumen extending from a proximal end to at least one opening at or near a distal end of said needle, said needle further having during insertion blocking means comprising a distal portion of said stylet at said needle opening for blocking cartilage and/or bone tissue from clogging said opening, said needle further comprises attachment means at its proximal end, said attachment means configured to hold said stylet in position during insertion, and wherein during insertion said needle is axially rotated to cause deflection to aid in traversal of the sacroiliac joint; advancing said needle leading apex into the sacroiliac joint lumen between layers of articular cartilage until palpation indicates contact with articular cartilage or bone; withdrawing said stylet while maintaining said opening in the sacroiliac joint lumen; and injecting through said lumen a pharmacological composition of matter comprising a local anesthetic and out of said opening and into the sacroiliac joint to contribute to the anesthetizing of nerves near the sacroiliac joint, wherein said pharmacological composition passes through the opening at or near the distal end of the needle.