Grace Medical 605 ALTO Centered Total Sizers Included Titanium/Silicone Ossicular Prosthesis ENT

Grace Medical 605 Centered Alto Total Sizers Included Titanium/Silicone Ossicular Prosthesis ENT

• Model: 605
• Head Size: 3.0mm
• Adjustable Length Range: 3.0mm - 7.0mm
• Distal End/ Stem: 0.8mm

The Centered ALTO Total #605 is an ossicular prosthesis designed for total ossicular chain reconstruction (i.e. replacing the entirety of the ossicular chain in the middle ear) when the native ossicles are not usable (due to disease, trauma, removal, or congenital absence). It is part of the ALTO family from Grace Medical, which emphasizes adjustable prostheses. In this model, the shaft has a telescoping or adjustable design, allowing the surgeon to fine‑tune the length between about 3.00 mm up to 7.00 mm in situ, to accommodate varying anatomical distances between the tympanic membrane (or reconstructed eardrum) and the stapes footplate. The “centered” designation means its geometry is aligned so that the prosthesis is aimed to sit centrally on the stapes footplate, reducing risks of off‑center contact and optimizing sound conduction. The head of the prosthesis (3.00 mm) provides sufficient surface area for coupling with the tympanic membrane or graft material.

One key feature of this prosthesis is the inclusion of sizers in the package: disposable trial sizers help in determining optimal length before committing to the implant, which can reduce wasted implant materials, reduce operative time adjusting prostheses during surgery, and possibly improve fitting accuracy. The distal end has a fine diameter (~0.8 mm), designed to interface with the stapes footplate or any shoe / adapter that might be used. The materials—titanium for the shaft and silicone at the distal end interface—are chosen for biocompatibility, durability, and favorable acoustic transmission. Titanium is light, stable, corrosion‑resistant, and has good sound transmitting properties; silicone provides a softer contact surface that may help reduce risk of damage or irritation at contact points.

Clinically, the 605 ALTO Centered Total is aimed at providing reliable hearing outcomes in middle ear reconstructive surgery. Its adjustability helps accommodate anatomical variability (depth of middle ear cavity, position of footplate, eardrum graft height, etc.), and centered orientation helps optimize mechanics for sound transmission. Surgeons may favor this prosthesis when they want both adjustability and a centered apposition, especially if they also are using other ALTO accessories (like shoes or adapters) to improve centering or stability. Because of the finer distal diameter, there is less mass distally, which may help in minimizing energy loss or damping while still achieving secure contact.