Blom-singer dual valve voice prostheses, 20 fr, 6mm.When the primary valve fails, the secondary speech valve is intended to remain viable to help prevent leakage of fluids.The blom-singer dual valve voice prosthesis lf is available withlarge esophageal and tracheal flanges.Includes nonsterile voice prosthesis for secondary or replacement tep procedures, with insertion/cleaning accessories.
