Sonic Weld Procedure

The core component of this procedure is what is referred to as the SonicWelder Rx, an ultrasound generator that is used to generate ultrasonic waves of precisely defined frequency with are then focussed with a sonotrode. The SonicPin Rx^® is picked up with the sonotrode tip and placed onto a pilot hole. When activating the ultrasound generator, the pin is set vibrating via the sonotrode. The friction between the vibrating pin and the bone surface generates heat, liquefying the pin surface and thus enabling it to glide into the hole.

By changing the state of aggregation, the pin even penetrates into bone cavities that could never be reached using the conventional procedure. In addition, the head of the SonicPin Rx® bonds with the Resorb-x^® film or membrane, creating a three-dimensional construction of unmatched initial stability. Combined with the special shell technique by Iglhaut, these properties open up new dimensions in horizontal and vertical augmentation.

The Implants

The basis of the resorbable implants is a special type of polymer: Resorb x^®, a 100 % amorphous, non-crystalline poly D, L-lactic acid (PDLLA). This does not only guarantee controlled and secure biological degradation but also exhibits the highest degree of histocompatibility.

The PDLLA material’s complex polymer chains (1) absorb the water contents (H2O molecules) of surrounding body fluids (2) – a process called “hydrolysis”. The stored water then initiates the degradation process, continuously breaking down the long polymer chains into ever-shorter molecular chains (3, 4). The human metabolism subsequently transforms the D-lactides and L-lactides into carbon dioxide and water. Both these compounds are finally discharged naturally. This degradation process is predictable and complete – no residues are left.

The System

The core component of the system is an ultrasound generator, which liquefies the SonicPin Rx^® by means of microvibrations. When activating the unit, slight pressure is sufficient to drive the SonicPin Rx^® into the pilot hole.

Depending of the field of application, there are various tips, referred to as sonotrodes, available in straight and angled variants to insert the SonicPin Rx^® and optimally shape the Resorb-x® film/membrane.

With the Xcelsior, you get a line-powered water bath for easy contouring of Resorb x^® implants. The advantages of the Xcelsior:

• Reusable product
• Easy adaptation of Resorb x® membrane/film
• Large water vessel
• Extremely easy to use