If the open-source approach to building robot surgeons can cut costs and improve performance, patients will increasingly find them at the other end of the scalpel
For much of its brief history, robot-assisted surgery has been synonymous with Intuitive Surgical, Inc.’s da Vinci system. It’s the only robot with U.S. Food and Drug Administration (FDA) approval to help surgeons perform a number of laparoscopic soft-tissue procedures, including hysterectomies, gall bladder and kidney removals, prostate cancer treatment and heart valve operations. Da Vinci has improved vastly since Intuitive introduced it more than a decade ago. Like many new technologies, however, it has experienced growing pains, leading some engineers and medical professionals to question whether a single company can meet growing demand while still delivering a safe product.
A team of researchers is looking to address these issues by developing a robotic surgery system based on hardware designs and software that are freely available. In this open-source approach, the builders would keep whatever intellectual property they’ve invested in the project but must make their knowledge and discoveries available to others.
The researchers, from the University of California, Santa Cruz, and the University of Washington (U.W.), hope their efforts will lead to a number of advances in surgical-robot technology that would stem from a basic design that wouldn’t change from device to device. The idea is that the costs of building—and buying—multimillion-dollar robotic surgery systems would decrease, as would the learning curve to use them.
The open-source model has worked well in the software industry, enabling startup companies to challenge Goliaths like Microsoft and Oracle by offering lower prices as well as collective review of new advances. Some of the more visible products of open-source innovation include Google’s mobile Android operating system, which is based on Linux, and Mozilla’s Firebox Web browser. Engineers and designers have also launched efforts to collaboratively develop open-source general-purpose robots as well as prosthetic limbs. Brewers have even applied the approach to making beer, tweaking and redistributing one original recipe to a broader community of enthusiasts.
Da Vinci has been assisting surgeons since it received FDA approval in 2000, helping them operate quickly and efficiently in tight spaces. The device’s four arms can wield any number of instruments, including scalpels, forceps, graspers and scissors to, for example, make incisions, remove organs, place catheters and close incision points. A surgeon controls these tools while sitting comfortably in front of an ergonomically designed console with the aid of a high-definition 3-D camera, reducing concerns about fatigue during long procedures. Despite its nearly $2-million price tag, the da Vinci’s popularity has grown steadily in recent years. In 2012 doctors used the system to perform more than 350,000 surgeries in U.S. hospitals, a 60 percent increase from 2010.
Intuitive designed the da Vinci to improve on existing laparoscopic surgery—also referred to as minimally invasive surgery because the surgeons perform most of the repair work inside the body by passing tiny video cameras and tools through small incisions. Physicians have reported several advantages to using da Vinci, including less patient bleeding and shorter surgery times, both of which lead to reduced hospital stays and recovery times. T. Sloane Guy, chief of robotics and section chief of cardiovascular surgery at Temple University School of Medicine, likens conventional laparoscopic tools to “chop sticks” and says da Vinci’s computer-controlled tools provide greater freedom of movement in snug spaces during surgery.
The Latest on: Robotic surgery
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