This page was generated by AI. It is not a source of trustworthy medical information.
The curated page (written by a real person) is here
other ai pages: Assistive_devices | CROS | cochlear_implant | default | feedback | head_shadow | hearing_aid | hearing_balance | implantable | occlusion | otc | tcoil | transear | unilateral | vertigo_cochlear_implant

A bone anchored hearing aid is an implantable device that uses the skull bone to transmit sound directly to the inner ear. It is a useful option for people with certain types of hearing loss. This article looks at two popular abutment-based systems, BAHA and Ponto, and one magnet-based system, Sophono, while also mentioning the vibrant soundbridge as a different kind of implant.

How a bone anchored hearing aid works

A bone anchored hearing aid has a small titanium implant that is surgically fixed in the bone behind the ear. The external sound processor detects sound and sends vibration through the implant. Because the vibration goes straight to the inner ear, the device bypasses the ear canal and middle ear. This makes it suitable for conductive hearing loss, mixed hearing loss, and single-sided deafness.

BAHA

BAHA is a well-known system that uses a titanium implant connected to an abutment. The sound processor attaches to the abutment, allowing sound to travel efficiently into the bone. This design is widely used and has a long track record. It is often considered when a person cannot wear a conventional hearing aid.

Ponto

Ponto is another abutment-based system. Its processor is designed to be light and slim, and many models include modern features such as directionality and wireless streaming. Ponto is implanted using a similar surgical technique to BAHA and offers a bone anchored hearing aid option for both adults and children.

Sophono

Sophono takes a different approach. It is a transcutaneous system, which means the implant is placed entirely underneath the skin. The external processor is held in place with magnets. This design leaves the skin closed, which may reduce the risk of skin infection. Sophono is a good choice for patients who do not want an abutment.

Choosing between BAHA, Ponto, and Sophono

All three devices are designed to improve hearing through bone conduction. The main difference is the way they connect to the implant: BAHA and Ponto use an abutment, while Sophono uses magnets. The best option will depend on the person's hearing loss, the condition of the skin and bone, and personal preference. An experienced hearing specialist can help decide which device is suitable.

The vibrant soundbridge as an alternative

Not every patient is a candidate for a bone anchored hearing aid. Some may benefit from a middle ear implant such as the vibrant soundbridge. This device is attached to the tiny bones of the middle ear and vibrates them directly. It is intended for people with moderate to severe sensorineural hearing loss, as well as some forms of conductive or mixed hearing loss. The vibrant soundbridge is not a bone anchored hearing aid, but it is an important part of the range of surgical hearing solutions.

Conclusion

BAHA, Ponto, and Sophono are three distinct types of bone anchored hearing aid. Each offers a safe and effective way to manage certain forms of hearing loss. For other cases, the vibrant soundbridge may provide an alternative. Anyone interested in these devices should discuss their suitability with a hearing professional.