delivery devices and methods related thereto may be used in humans for spinal delivery of cells , drugs or vectors . the patient population may include patients with spinal traumatic injury , amyotrophic lateral sclerosis , multiple sclerosis , spinal ischemia and any other spinal neurodegenerative disorders which will require spinal cell , vector or drug delivery . unlike conventional methods which require multiple injection sites to make multiple , localized substrate deliveries , the delivery devices and methods of the present invention may allow for multiple substrate delivery locations with homogeneous substrate delivery with a single injection site .