Blom Singer® Low Pressure Non Indwelling
Clinical application
The Blom Singer® Low Pressure prosthesis was developed from the Blom-Singer ® Duckbill prosthesis, as the latter's duckbill valve sat far into the esophageal lumen and occasionally became blocked by esophageal mucus membrane. This resulted in attempts to create a prosthesis with a flat profile from the side. A flap valve was used, which also provided a far lower airflow resistance when talking and resulted in the name "low-pressure" prosthesis.
Type of prosthesis: | Low-resistance non-indwelling prosthesis |
---|---|
Outer diameter of shaft: | 20 Fr or 16 Fr (6.6 mm or 5.9 mm) |
Shaft lengths: | 4-22 mm in 2 mm increments |
Material: | medical-grade silicone |
Valve type: | flap valve |
Method of insertion: | gel capsule, anterograde |
Indication: | standard prosthesis |
Biofilm resistance: | no |
Underpressure stability: | no |
Non-fatiguing valve mechanism: | no |
Prevalence: | USA, Europe (rare), South Africa |
Literature
1. Blom E.D., Singer M.I., Hamaker R.C., Tracheoesophageal Voice Restoration Following Total Laryngectomy, Singular Publishing Group, San Diego, London, (1998)