#Does ilift ulrra sonic device work free#

This also has reduced the risks of the device overheating during operation. This reduces device complexity and removes the potential for cross-contamination between sterile saline solutions directed to the surgical site and nonsterile stack cooling solutions. Since the mid-1990s most ultrasonic surgical devices have incorporated piezoelectric transducers rather than magnetostrictive transducers, removing the need for the cooling system necessary for magnetostrictive stacks. Meanwhile, advances in manufacturing processes have realized the fabrication of more complex device geometries with higher precision and on a commercial scale and also have enabled miniaturization of devices for more delicate and less invasive procedures. In particular, finite element analysis (FEA) has enabled efficient and reliable devices to be designed and developed, allowing the designer to optimize the motion of the device through accurate prediction of the resonant frequencies, vibration response, and stress concentrations. Since 2000 there have been many advances in ultrasonic bone-cutting devices, as well as developments in phacoemulsification devices, ultrasonic aspirators, and ultrasonic scalpels, demonstrating that many of the limitations of ultrasonic devices reported between the 1960s and 1980s have been addressed. This has since led to the routine application of ultrasonic cutting devices in oral and maxillofacial surgery, neurosurgery, and orthopedic surgical procedures ( Beziat et al., 2007 Hoigne et al., 2006 Labanca et al., 2008 Pavlíková et al., 2011 Schaeren et al., 2008 Vercellotti, 2000 Vercellotti et al., 2001). As with the first phacoemulsification device, a surgical device for bone cutting stemmed from a different technology application, in this case ultrasonic scaling. Therefore, the scaling device was used to cut through the final layers of the bone tissue during an osteotomy on the maxilla, minimizing the risk to the membrane and other soft tissues. Vercellotti recognized that the vibrational motion of a scaling unit at maximum power would not perforate the membrane but could cut bone. During these procedures, the Schneiderian membrane (membrane lining the maxillary sinus cavity) is at risk of perforation, requiring termination of the procedure. A novel technique was described by Vercellotti in 2000: an ultrasonic device was successfully used in oral surgery to perform osteotomies during sinus lift procedures ( Labanca et al., 2008 Vercellotti, 2000). However, it was also acknowledged that the cutting speed of the ultrasonic device was significantly slower.

As with previous studies, it was reported that the ultrasonic device resulted in higher precision and required a lower force to cut than bur and saw devices.

One in vitro study investigated the cutting force and cutting rate in bone-cutting experiments ( Khambay and Walmsley, 2000a,b). Trials continued to compare the performance of ultrasonic devices against conventional surgical devices through the 1990s. Mathieson, in Power Ultrasonics, 2015 23.3 Developments in ultrasound for bone cutting and other surgical applicationsīy the mid-1990s ultrasonic cutting was routinely used in diverse industrial applications ranging from textile cutting to food cutting ( Rawson, 1998), yet it still had limited use in bone surgery ( Labanca et al., 2008). Ultrasonic cutting is performed in a similar way, however the action of the cutting tool is that of chopping rather than cutting. The blade oscillates up and down while the lateral movement is guided by a computer-controlled head.

The ultrasonic ply cutter operates in a similar manner to an oscillating knife. It also enables a single-ply cutting process to be used straight from the roll or from fixed sheets of material, with either a conveyor or a static table. Ultrasonic cutting ensures a high level of accuracy in both simple and complex shapes and notches. Ultrasonic cutters are also good for thick fabrics or fabrics with an uneven weave or variation in thickness, where laser cutting often gives a poor edge finish.

#Does ilift ulrra sonic device work free#

Ultrasonic cutting is common in the manufacture of textiles where melted and sealed edges free from fraying are required, or where a turned-over hem is not acceptable. Viļumsone-Nemes, in Industrial Cutting of Textile Materials, 2012 9.8.3 Use of ultrasound to cut textiles