The valve of the Blom-Singer® Advantage prosthesis is made of silver oxide silicone. Rather than being applied as a coating, the silver oxide is incorporated in the silicone (7%), and is intended to reduce biofilm formation on the valve. There are two versions of the Blom-Singer® Advantage prosthesis. The "Hard Valve Assembly" has a reinforcing titanium ring in the shaft and is available in 20 Fr. The "Soft Valve Assembly" Blom-Singer® Advantage prosthesis does not have the titanium ring and is available in shaft diameters of 16 Fr and 20 Fr.
CAVE: The studies mentioned here apply to the "Hard Valve Assembly" Blom-Singer® Advantage prosthesis.
|Type of prosthesis:||Low-resistance indwelling prosthesis|
|Outer diameter of shaft:||20 Fr or 16 Fr (6.6 or 5.9 mm)|
|Shaft lengths:||4-22 mm in 2 mm increments|
|Material:||medical-grade silicone, silver oxide silicone around the valve|
|Valve type:||flap valve|
|Method of insertion:||anterograde with a gel capsule|
|Indication:||biofilm-based transprosthetic leakage|
|Non-fatiguing valve mechanism:||no|
|Prevalence:||USA, Europe (low)|
1. Kress P, Schäfer P, Schwerdtfeger FP., Clinical use of a voice prosthesis with a flap valve containing silver oxide (Blom-Singer Advantage), biofilm formation, in-situ lifetime and indication, Laryngorhinootologie. 2006 Dec;85(12):893-6.
2. Leder SB, Acton LM, Kmiecik J, Ganz C, Blom ED., Voice restoration with the advantage tracheoesophageal voice prosthesis., Otolaryngol Head Neck Surg. 2005 Nov;133(5):681-4.