25 Feb 2016
Hebrew University's BioDesign program develops "optoelectronic drill" to improve surgery outcomes.
To address this challenge, Prof. Liebergall, head of the Department of Orthopedic Surgery at Hadassah Medical Center, Jerusalem, Isreal, has partnered with a multidisciplinary team of medical doctors, along with engineering and business students, from the affiliated Hebrew University's BioDesign: Medical Innovation program.
The team has identified a solution: by creating a system that provides real-time indication of deflection or bending of the guide-wire, a surgeon will be able to adjust the procedure before damage occurs. The team has developed BendGuide, an opto-electronic drilling system that monitors and detects minute changes in guide-wire trajectory during surgery. It allows surgeons to correct drilling trajectories during the procedure itself. The system eliminates guide-wire bending or breakage and significantly reduces operation time while increasing safety.
“This is an elegant technological solution to a complex problem,” said Prof. Yaakov Nahmias, director of The Hebrew University’s Alexander Grass Center for Bioengineering and the BioDesign program. “The group model and proof-of-concept experiments showed they could detect even minuscule changes in guide-wire trajectory.”
The market for computer-aided navigation systems for surgery is growing fast. The researchers estimate the potential market to be $500 million annually in the United States alone, where hip fracture fixation is performed on 258,000 patients and spinal fusion on 350,000 patients each year. They add that they expect BendGuide to become “an integral part of this market, which is expected to grow further with the aging population”.
The interdisciplinary team which developed BendGuide included Prof. Giora Weisz, M.D., Chairman of the cardiology department at Shaare Zedek Medical Center in Jerusalem; Hadar Shor, an MBA student at the Hebrew University’s Jerusalem School of Business Administration and a fund manager for Israel's Ministry of Economics; and Kuti Uliel and Michal Zimerman, graduate students at the Alexander Grass Center for Bioengineering.
The following video shows how the new fiber optic guide-wire enables surgeons to perform highly accurate hip fracture and spinal fusion surgery with minimal side effects.