ZEUS robotic surgical system

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ZEUS Robotic Surgical System
Manufacturer Computer Motion
Type Robotic surgery

The ZEUS Robotic Surgical System (ZRSS) was a medical robot designed to assist in surgery, originally produced by the American robotics company Computer Motion. Its predecessor, AESOP, was cleared by the Food and Drug Administration in 1994 to assist surgeons in minimally invasive surgery. The ZRSS itself was cleared by the FDA seven years later, in 2001. ZEUS had three robotic arms, which were remotely controlled by the surgeon. The first arm, AESOP (Automated Endoscopic System for Optimal Positioning), was a voice-activated endoscope, allowing the surgeon to see inside the patient's body. The other two robotic arms mimicked the surgeon's movements to make precise incisions and extractions. ZEUS was discontinued in 2003, following the merger of Computer Motion with its rival Intuitive Surgical; the merged company instead developed the Da Vinci Surgical System.

Contents

History

AESOP

In the 1990s, Computer Motion was a leading producer of medical robotics, manufacturing systems such as the HERMES Control Center and the SOCRATES Telecollaboration System. [1] Computer Motion conducted its original research developing the AESOP arm under a NASA SBIR (Small Business Innovation Research) contract. NASA funded the research in the hope that derivatives of such technology could help service the Space Shuttle in orbit, working on parts of the shuttle where humans cannot easily access or making other delicate repairs or adjustments. [2]

AESOP was cleared for use by the FDA in 1994, and it became the first robot to assist in a surgery. AESOP's function is to maneuver an endoscope inside the patient's body during the surgery. The camera moves based on voice commands given by the surgeon. [1] Voice activation of the AESOP arm allows the surgeon to position the camera while also controlling the other two arms of the ZEUS system. The endoscope can also be controlled by a computer which allows for more precise movements and also allows the endoscope to be inserted into the patient through a smaller incision (a key component of minimally invasive surgery).

ZEUS system

The first prototype of the ZEUS was demonstrated in 1995, and tested on animals in 1996. Two years later, in 1998, it carried out its first tubal re-anastomosis procedure, and its first coronary artery bypass surgery (CABG) procedure. By 2000, the ZEUS was equipped to hold 28 different surgical instruments, and in 2001 it received FDA approval. [3] In 2003, the ZEUS Robot Surgical System was marketed at $975,000. This was slightly cheaper than the competing Da Vinci system, which sold for $1 million. [4]

Computer Motion vs. Intuitive Surgical

By 2000, Computer Motion had filed eight lawsuits against a rival medical robotics company, Intuitive Surgical, for allegedly infringing on Computer Motion's patents relating to robotic surgery. [5]

On March 7, 2003, Computer Motion and Intuitive Surgical merged into a single company. This was partially done to try to end the litigation between the companies, but also to combine their efforts in developing robotic surgical systems to increase the effectiveness of such technology. Soon after merging, the ZEUS was phased out in favor of Intuitive Surgical's Da Vinci system. [6]

Features

The ZEUS was designed for minimally invasive microsurgery procedures, such as beating heart surgery and endoscopic coronary artery bypass grafting (E-CABGTM). The system was also used to initiate more complex procedures, like a mitral valve surgery IDE study. [3] The ZEUS' robotic arms not only mimic the surgeon's hand movements, but also scale down the movement, allowing the surgeon to easily make precise and small cuts. [1]

The arms also correct for tremors in a surgeon's hands, which are normal even without fatigue, though a highly trained surgeon will be able to lessen the negative effects. However, some surgeries can last for hours, in which case the surgeon's arms will get tired, and the resulting tremors from fatigue can make the surgeon create false cuts, which can be devastating during a delicate operation. To handle this, the ZEUS is designed to track and nullify these tremors while still responding to the movements/commands of the surgeon's hands.

During the surgery, the surgeon sits at the ZEUS console to control the arms. This can also lessen fatigue, because the surgeon is sitting down during the long operation rather than leaning over the patient.

The ZEUS is also able to perform remote surgery. Because the surgeon is simply controlling the robotic arms, the surgeon can sit at a ZEUS console remote from where the surgery is actually taking place, and still be able to perform the surgery.

Timeline of use

Related Research Articles

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<span class="mw-page-title-main">Laparoscopy</span> Minimally invasive operations within the abdominal or pelvic cavities

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<span class="mw-page-title-main">Intuitive Surgical</span> American Biotechnology Company

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da Vinci Surgical System Robotic surgical system

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References

  1. 1 2 3 "Robotics: the Future of Minimally Invasive Heart Surgery". Biomed.brown.edu. Retrieved April 19, 2011.
  2. ↑ "Robotic Surgery". Sti.nasa.gov. March 2, 2011. Archived from the original on February 8, 2001. Retrieved April 19, 2011.
  3. 1 2 "Digital Surgery". Biomed.brown.edu. October 1, 2000. Archived from the original on May 21, 2011. Retrieved April 19, 2011.
  4. ↑ "Robot-Assisted Surgery: da Vinci". Biomed.brown.edu. Archived from the original on September 16, 2007. Retrieved April 19, 2011.
  5. ↑ "Computer Motion to start patent infringement war on medical robotics against Intuitive Surgical". Hoise.com. June 2, 2000. Retrieved April 19, 2011.
  6. ↑ "INTUITIVE SURGICAL INC - ISRG Current report filing (8-K) EXHIBIT 99.1". Sec.edgar-online.com. Retrieved April 19, 2011.
  7. ↑ Search :: Elsevier Business Intelligence. Retrieved July 16, 2013.
  8. 1 2 3 4 5 "Evolution of robotic surgery". ODEC.ca. 2008. Retrieved March 17, 2013.
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