DocumentCode :
1825377
Title :
A surgical robot for cochleostomy
Author :
Brett, P.N. ; Taylor, R.P. ; Proops, D. ; Coulson, C. ; Reid, A. ; Griffiths, M.V.
Author_Institution :
Aston Univ., Birmingham
fYear :
2007
fDate :
22-26 Aug. 2007
Firstpage :
1229
Lastpage :
1232
Abstract :
In this paper a robotic micro-drilling technique for surgery is described. The device has been deployed in cochleostomy, a precise micro-surgical procedure where the critical stage of controlling penetration of the outer bone tissue of the cochlea is achieved without penetration of the endosteal membrane at the medial surface. The significance of the work is that the device navigates by using transients of the reactive drilling forces to discriminate cutting conditions, state of tissue and the detection of the medial surface before drill break-out occurs. This is the first autonomous surgical robot to use this technique in real-time as a navigation function in the operating room and unlike other fully autonomous surgical robotic processes it is carried out without the use pre-operative data to control the motion of the tool. To control tool points in flexible tissues requires self-referencing to the tissue position in real time. There is also the need to discriminate deflections of the tissue, tissue interface, involuntary patients/ tissue movement and indeed movement induced by the drill itself, which require different strategies to be selected for control. As a result of the design of the final system, the break-out process of the drill can either controlled to the required level of protrusion through the flexible interface or can be avoided altogether, with the drill bit at the medial surface. This enables, for the first time, the control of fine penetration with such great precision.
Keywords :
bone; drilling; medical robotics; micromechanical devices; motion control; surgery; cochleostomy; drill break-out process; endosteal membrane; involuntary tissue movement; medial surface; motion control; navigation function; outer bone tissue; reactive drilling force; real-time tissue position; robotic microdrilling technique; surgical robot; tissue interface; Automatic control; Bone tissue; Control systems; Master-slave; Medical robotics; Motion control; Navigation; Robot sensing systems; Robotics and automation; Surgery; Cochlea; Cochlear Implantation; Equipment Design; Equipment Failure Analysis; Humans; Microsurgery; Osteotomy; Robotics; Surgery, Computer-Assisted;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Engineering in Medicine and Biology Society, 2007. EMBS 2007. 29th Annual International Conference of the IEEE
Conference_Location :
Lyon
ISSN :
1557-170X
Print_ISBN :
978-1-4244-0787-3
Type :
conf
DOI :
10.1109/IEMBS.2007.4352519
Filename :
4352519
Link To Document :
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