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    Foramina are openings. Neural foramina patent bilaterally just means that the openings in the spine are open, and allow the nerves to pass through normally... The USPTO has put in place a number of Resource 2  â¦. What Patents Pending Means There are many inventors today who are in the process of inventing a product-like a new game or gadget. 3  Creating an invention is exciting.
The intervertebral foramen (also called neural foramina, and often abbreviated as IV foramina or IVF), is a foramen between two spinal vertebrae. Cervical, thoracic, and lumbar vertebrae all have intervertebral foramina. The foramina, or openings, are present between every pair of vertebrae in these areas. A number of structures pass through the foramen. These are the root of each spinal nerve, dorsal root ganglion, the spinal artery of the segmental artery, communicating veins between the internal and external plexuses, recurrent meningeal (sinu-vertebral) nerves, and transforaminal ligaments.