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Abstract

A flow element (50) for use with flexible needles and flexible needle assemblies (10) to minimize flow occlusion within a flexible needle (15) is provided. The flow element (50) is particularly suited for uses with a flexible needle (15) for minimizing incidence of post-dural puncture headache. The flow element (50) includes a body having an internal flow path for conducting a fluid through a flexible needle, and an anti-restriction member (56). The anti-restriction member (56) includes an elongated body (58), a proximal end (70) coupled to the body within the internal flow path, and a distal end (60) for positioning at least a portion of the elongated body within a flexible needle. A flexible spinal needle assembly (10) for minimizing flow occlusion through an internal flow path of a flexible needle (15) by unintended kinking that is potentially caused by ligament or muscle layer movements is also provided, hi other embodiments, a flexible spinal needle assembly (10), a flexible spinal needle assembly kit, a method for installing a flexible spinal needle assembly, and a process for producing a flow element are provided.

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First Claim