VORP 502x - Vibrating Ossicular Prosthesis

The VORP 502x is the implanted component of the Vibrant Soundbridge system and consists of:

  • an internal coil,
  • a magnet to hold the Amadé audio processor in place over the implant
  • a demodulator to receive and convert the electrical signals from the Amadé audio processor
  • a conductor link
  • the Floating Mass TransducerTM (FMT) which is attached to one of the ossicles or the round window in order to cause these structures to vibrate

The implant has an overall length of 129 mm (including conductor link), a width of 29 mm, and a height of 4.5 mm.

The FMT is the core part of the implant. With its five components, it is 2.3 mm long—smaller than a grain of rice. The simplicity of this innovative technology is one of the reasons for its reliability, its flexible field of application, and the optimal compensation of different types of hearing loss.

How does the Vibrant Soundbridge work?

When hearing a sound, sound waves are transferred by the air to the tympanic membrane through the ear canal. These sound waves cause the tympanic membrane and consequently the ossicles to vibrate. The ossicles transfer the sound information further to the inner ear and the cochlea via the oval window.

The Vibrant Soundbridge is directly linked to the mechanic part of the hearing process. The FMT is attached to one of the ossicles or the round window and directly causes the respective structure to vibrate. This "direct drive" technology amplifies the natural acoustic signal and transfers it to the cochlea. Thanks to this technology, the natural path of sound transmission remains intact. The FMT functions within a broad frequency range of up to 8,000 Hz, which makes it possible to render a natural sound quality of speech and tones.


The Vibrant Soundbridge surgery takes approximately two hours. During that time, the VORP 502 is implanted under the skin behind the ear. The surgery is made under general or local anesthesia. The implant is not visible from the outside. After about eight weeks, when the sutures have healed and the swelling has subsided, the implant can be activated by putting on the Amadé audio processor. An audiologist or an ENT specialist will adjust the audio processor in order to optimize the signals amplified by the FMT for the specific needs of the recipient.

If you have any questions regarding the implantation contact your surgeon or your ENT clinic.

© 2017 MED-EL

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