C04166: MRI Compatible Positioning ArmNovelty:
A new positioning arm that can be used safely during an MRI imaging study.
Value Proposition:
The use of robotic surgical systems is becoming increasingly popular due to their ability to perform steady and precise actions using minimally invasive methods. However, due to their construction, these devices are often not suitable for use with some kinds of imaging technology. Furthermore, some systems are far too big and cumbersome to incorporate into imaging studies. In the case of Magnetic Resonance Imaging (MRI), the patient is placed in a narrow tunnel with a strong electromagnetic field present. This makes most metallic materials a danger. This technology, however, provides a means to utilize a robotic positioning arm with imaging equipment. Other advantages include:
• Non-magnetic materials still maintain high stiffness and compact size
• Full six degree-of-freedom positioning of the end-effector
• Simultaneous locking of all joints
Technical Details:
Johns Hopkins researchers have developed a family of passive positioning arms designed to carry a robot, instrument, or other tool. The prototype has full six degrees of freedom (3 translation and 3 rotation) when unlocked, and the rigidity when locked to hold 100N at its fully extended length. A completely nonmetallic model was designed for positioning robotic effectors in the high magnetic field of MRI machines.
Looking for Partners:
To develop and commercialize the technology as a new tool in the Robotic Surgery and Medical Imaging markets
Stage of Development:
Prototype
Data Availability:
Under CDA / NDA
Publications/Associated Cases:
Minimally Invasive Therapy. 2007; 16:4; 241–248
