Heimomed Phonax® Prothese

Clinical application

The PHONAX® voice prosthesis was first introduced in Germany in May 2009. The valve body is made of polypropylene. There is a TPE reinforcement tube in the valve bush that carries the flap valve. The bush is interspersed with an x-ray contrast agent; its outer diameter is 7 mm (21 Fr) and the inner diameter 3.8 mm (11.3 Fr).

The shaft length (in mm) is on the tracheal flange. The tracheal side of the tracheal flange is identified by 6 nubs. For anterograde insertion, the PHONAX® is placed on a flexible applicator and attached using the fixation thread.

PHONAX® insertion system

The safety thread has a tensile strength of 15 N. The esophageal flange of the PHONAX® is bent slightly towards the shaft as an aid to insertion and to adjusting its length to the shunt. Clinical studies are currently being carried out on the PHONAX® voice prosthesis.

Type of prosthesis:Low-resistance indwelling prosthesis
Outer diameter of shaft:21 Fr (7 mm)
Shaft lengths:4.5 mm, 6 mm, 8 mm, 10 mm, 12.5 mm
Material:prosthesis body: thermoplastic elastomer, sleeve (green):polypropylene
Valve type:flap valve
Method of insertion:anterograde and retrograde
Indication:new prosthesis
Biofilm resistance:unknown
Underpressure stability:no
Non-fatiguing valve mechanism:no

Heimomed Gmbh

Daimlerstrasse 30
50170 Kerpen