Wk9-22-BAHA Flashcards
Which company makes BAHA? What does the acronym stand for?
Cochlear
Bone Anchored Hearing Aid
- it was first made by Nobel-Biocare, which was purchased by Entific, then Cochlear Corporation
What type of BCHD is the BAHA?
The BAHA delivers vibration directly to the bone percutaneously (permanent wound)
What are the 3 parts of the BAHA?
The Implant (stays in the bone) The Abutment (connects speech processor to implant) The Speech Processor (with directional mics)
What is osseointegration?
The process of integration of the implant into the temporal bone (active process)
- the implant becomes fixated into the bone and allows for good retention and transfer
- the bone grows around the implant
What is the name of the implant/abutment technology that Cochlear trademarked for it’s BAHA implant?
DermaLock -
- implant made of TiOblast and titanium
- abutment made of titanium and hydroxyapatite
Created to help with soft tissue stability and minimize soft tissue loss during surgery.
What are the goals behind the DermaLock Abutment design?
To achieve soft tissue preservation resulting in
- improved cosmetic outcomes
- minimized soft tissue disturbance
- streamlined surgical procedure
And to provide good soft tissue stability with minimal epidermal down growth and pocket formation
(The skin tends to heal by closing the gap where the implant is. If it does not stop growing, it will grow up or down, or make pockets (pockets and skin infections are the most common complications)
What is so special about the hydroxyapatite of Cochlear’s DermaLock Technology?
The ability to bond to living tissue thanks to specific adsorption of important cell-binding proteins
How does the BAHA Connect System maximize hearing performance?
Because the system transfers vibrations directly through the abutment, so no vibration is lost through skin
Are the implant and abutment of the BAHA Connect System MRI safe?
Yes
How does the BAHA Attract system differ from the BAHA Connect?
Instead of an abutment, it uses magnet retention to connect the sound processor with an implant
- Skin remains intact
- Safety line should be worn
- Some of the signal is lost in the skin, so it is less powerful
- Reduced risk of loss of implant d/t trauma
What are the benefits of the BAHA Attract system?
- Skin remains intact
- SoftWear Pad distributes pressure evenly to maximize wearing comfort
- Only minor surgery is required and the healing process is generally quick
- The internal magnet can be scanned safely up to 1.5 Tesla
Describe the internal portion of the BAHA Attract (BI300) system
- thin titanium casing to minimize soft tissue irritation, which can be removed for MRIs greater than 1.5 Tesla
- strong foundation (screw) for efficient, single-point sound transmission and is the same as for abutment, if needed as future hearing option
When comparing the attenuation of the BAHA Connect, Attract, and Softband, which frequencies showed the most difference? List the devices by order of transmission power
Mid and High frequencies showed the most difference
Connect had the most transmission power, followed by Attract, then Softband
What other things should be considered when determining if someone is a candidate for an Attract System or a Connect System?
Connect Attract Performance vs Discretion Thin Tissue vs Wound Care Retention vs Ease MRIs (3T vs 1.5 T) Implant loss d/t trauma (Attract may be better for contact sports)
A listening check with the BAHA processor is conducted before surgery. Which might they choose if they are not satisfied: Connect or Attract?
Connect
