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Ports designed to infuse fluids, electrolytes, medications, or parenteral nutrition solutions; they can withstand several hundred punctures (usually from 500 to 2,000). These ports include a reservoir that leads to a vascular catheter and a dense (e.g., silicone) septum for access to the reservoir. Injection/infusion ports are totally implanted; they are usually accessed with specially designed needles (e.g., Huber needles), which are deflected at the tip to prevent coring of the septum (noncoring needles).
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