Military surgeons face an additional challenge. Constantly turning one’s head back and forth between patient and monitor is awkward, and looking in the opposite direction of the procedure can be disorienting. The monitor display is often located several feet away from the operating table, causing the surgeon to look away from the patient to view the image. The endoscope has a minature camera that transmits an electronic image to a CRT monitor. Surgeons use video endoscopes for minimally invasive surgical procedures such as arthroscopy and laproscopy. With DARPA funding, Honeywell identified a medical application for the technology that would benefit both military and private-sector users.
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Both color and monochrom display systems, however, could be manufactured by the same production lines, translating into significant cost savings for the military. Commercial markets require color displays. According to Scott Nelson, staff scientist at the Honeywell Technology Center in Minneapolis, the military primarily uses monochrome head-mounted displays. Having identified a need for high-resolution miniature displays for its pilots and soldiers, DARPA funded the display group’s efforts to investigate the technology and identify additional applications for it.
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Because of the display group’s extensive experience with this type of technology, the US government approached them with a new concept for a miniature display. The technology center’s display group develops both display processors and advanced display systems, including flat-panel and projection displays. Honeywell is a leader in high-resolution, flatpanel displays for commercial, industrial and military applications. The Honeywell Technology Center develops and evaluates advanced technologies, processes and product and service concepts for use in military and commercial settings. To support these objectives, Honeywell spent $353 million on research and development in 1996 in the technology center and in its operational divisions. Some key strategies for the technology center have been to extend established industry and technology leadership positions to penetrate global commercial, military and space markets and to apply commercial products and technology to government markets. The company has one worldwide technology center focused on R7D, with branches in Prague, the Czech Republic and Phoenix, Arizona and Minneapolis, Minnesota, in the US. The world’s leading supplier of avionic systems for commercial, military and space use, Honeywell is also a recognized leader in militarized head-mounted display technology. With over 50,000 employees in 95 countries, Honeywell achieved over seven billion US dollars in sales in 1996. Honeywell was founded in 1885 with the invention of the automatic thermostat control for home heating. Honeywell – The Authority in Control and Display Technologies It made the difference between being able to sell the concept to medical market leaders and losing funding for the program due to lack of understanding of the technology. While many of the surgeons could not see the potential advantages of the device in early focus-group discussions, they immediately recognized its benefits when they put on the functioning prototype. During testing in both military and non-military surgical settings, surgeons wore a prototype headset assembled of various RP parts, including FDM. Its is used to new video images of a patient’s internal geometry. The miniature display is mounted on a headset. Honeywells’s new device replaces cumbersome CRT monitors, making it easier for surgeons to conduct minimally invasive surgeries in limited space environments. Honeywell had the medical device prototyped using FDM in conjunction with other rapid prototyping technologies. For the first time, military surgeons have performed arthroscopic surgeries in the field, thanks to a new miniature color-display technology developed by Honeywell under DARPA sponsorship (Defense Advanced Research Projects Agency).