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The Fiber Optic Stylet (FOS) serves two distinct purposes: transmission of light for illumination of discrete locations and semi-rigid guidance for intubation of small animals. Light transmission is facilitated by buffer coated fiber optic cabling terminated on one end with a standard SMA connector that couples to the Illuminator (Patent Pending). The delivery end is stripped and bare tipped enabling it to be inserted through IV catheters commonly used as trachea tubes for intubation of small animals. The stripped portion of the delivery end is reinforced to allow flexibility and reduce the fragility in order to prolong the working life of the device.       A coupling adapter is included with each FOS and provides a way to couple the trachea tube to the FOS. One end of the adapter contains a gasket that is used to clamp tight on the fiber. The other end of the adapter has a male luer that mates with the IV catheter holding it securely in place during intubation and allowing quick detachment once the trachea tube is in place. The appropriate catheter size is dependent upon the size of the animal. The recommended catheter sizes for both mice and rats are listed in the table below.
	Schematic view of the distal end of the Fiber Optic Stylet with the Coupling Adapter and IV Catheter.   APPLICATION NOTES
	Part Number	Description	Catheter Sizes
	FOS-400	Stylet for Mice 10+ grams	10-20 grams - 22G (1.0") 20+ grams - 20G (1.0")
	FOS-600	Stylet for Rats 100 - 200 grams	18G (1.25")
	FOS-800	Stylet for Rats 200 - 300+ grams	200-300 - 16G (1.25") 300+ - 14G (1.5")