Miniature Ultrasonic Cutting Devices for High Precision Minimal Access Orthopaedic Surgical Procedures
Lead Research Organisation:
University of Edinburgh
Department Name: Surgical Sciences
Abstract
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People |
ORCID iD |
| Hamish Simpson (Principal Investigator) |
Publications
Bejarano F
(2015)
Ultrasonic Cutting Device for Bone Surgery Based on a Cymbal Transducer
in Physics Procedia
Bejarano F
(2016)
An ultrasonic orthopaedic surgical device based on a cymbal transducer.
in Ultrasonics
Ganilova O
(2012)
Inspiration from Victorian times in Ultrasonic Surgical Tool Design
in Journal of Physics: Conference Series
| Description | The use of the cymbal transducer allows a miniaturised ultrasonic transducer to be made with the same output amplitude as a traditional Langevin device Cutting blades can be made to fit the desired application and provide a precise cut. Cooling spray should be applied to the cutting blade during operation. Histology of the cut bone reveals significantly more live cells in the region around the cut site for the cymbal device than for the current standard reciprocating sagittal blades, langevan device and manual bone saw while providing superior access. |
| Exploitation Route | Cutting blades can be made to fit the desired application and provide a precise cut. |
| Sectors | Healthcare |
| Description | Current ultrasonic bone cutting devices consist of a tuned Langevin transducer with a resonant cutting blade, a basic design that has been largely unchanged for more than fifty years. Resonance is required for a Langevin-type device in order to provide sufficient vibrational amplitude to cut bone. However, this requirement for resonance severely restricts the geometry, and therefore the overall design, and offers little opportunity to propose miniaturised devices or highly complex blade geometries. We aim to implement the use of a class V flextensional cymbal transducer as the basis for a completely new design of ultrasonic bone cutting devices, where the cymbal delivers the required vibrational amplitude. As there is no longer the requirement for a resonant blade the design of the cutting blade attachment can be wholly focus on delivering the required cut to the bone. Consequently, the device can be optimised to deliver a highly accurate and precise cutting capability. |
| First Year Of Impact | 2015 |
| Sector | Healthcare |