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The allay Nerve Cap is indicated for use in adults aged 22 years or older as a physical barrier to separate the peripheral nerve end from the surrounding environment to reduce the risk of the development of a symptomatic neuroma.

The allay Nerve Cap is a sterile, absorbable, in situ formed, hydrogel composed of water and polyethylene glycol (PEG). The hydrogel forms in seconds after delivery of the precursor solutions around a nerve seated in a temporary silicone Cap Form (Figure 1). The hydrogel provides a transparent, compliant nerve cover that conforms to and provides non-constricting encasement of the nerve. The Cap Form is removed and discarded after the implantation procedure. The hydrogel nerve cap is absorbed within 8 months. The allay Nerve Cap system is provided in a plastic tray sealed in a sterile, peelable outer pouch. The product is available in two sizes of a Small Nerve Set, for nerves less than 4 mm in diameter, and a Large Nerves greater than 4 mm in diameter and less than 7 mm in diameter. The allay Nerve Cap system includes a Powder Vial/Vial Adapter. Diluent Solution. Acceleration Solution, Dual Applicator and Adapter, Delivery Tip with Blunt Needle, and the Cap Forms [Small Nerve Set (1, 2, 3, and 4 mm) and Large Nerve Set (5, 6, and 7 mm)].