A-A-53072A
The bronchoscope shall have a smooth distal tip to provide maximum visibility and ease of instrument insertion. The instrument shall have an air tube assembly, with a 15 millimeter (mm) tracheal connector secured to the air tube. The air tube shall be permanently secured to the main tube proper. The 15 mm connector shall have a standard external taper in accordance with Figure 2 of ANSI Standard Z79.2 to accept standard tracheal tubes for anesthesiology and aspiration procedures. The handle of the bronchoscope shall be permanently secured to the main tube and shall have an external taper at the proximal end which will accommodate an interchangeable window plug to provide a closed system for administering anesthesia.
The fiber optic light carrier shall be of the bayonet type that shall be readily inserted into the light carrier channel and positioned into place by a slot in the instrument handle. The light carrier channel shall be permanently secured to the main tube and shall be completely sealed at the outer surface of the distal end. Open slots shall be on both sides of the main tube at the distal end. When the light carrier is inserted into the carrier channel, the lumen of the instrument shall not be increased in size.
Material. The main tube, light carrier channel, and light carrier housing shall be manufactured from unplated nickel-copper alloy (Monel) of composition in accordance with American Society for Testing and Materials (ASTM) Standard B165. As an alternate, the distal tip of the main tube may be manufactured from UNS C75200 nickel-silver of composition in accordance with ASTM Standard B122, and the tip silver-brazed to the main tube.
The handle, air tube assembly, bayonet connector, window plug housing, window plug cap, and spacers shall be manufactured from austenitic corrosion-resistant steel in accordance with ASTM Standard F899. As an alternate, these components may be manufactured from Monel of composition in accordance with ASTM B164 or ASTM B165.
The window of the window plug assembly shall be manufactured from clear polycarbonate. The sealing washers of the window plug assembly shall be manufactured from polytetrafluoroethylene (Teflon).
The light carrier shall be filled with fiberoptic glass fibers which transmit illumination.
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