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System for indicating the position of a surgical probe within a head on an image of the head    

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United States Patent5851183   
Link to this pagehttp://www.wikipatents.com/5851183.html
Inventor(s)Bucholz; Richard D. (St. Louis, MO)
AbstractA system for determining a position of a probe (302) relative to an object such as a head (390) of a body of a patient. The head includes a surface such as a forehead (394) having a contour. The head is placed in a cradle (392) equipped with an arc (393). The cross sectional images of the head are determined relative to the arc. A hand held unit (380) optically scans the forehead and the arc. During scanning to generate the cross sectional images, the optical scanner (380) is used to determine the position of the forehead (394) relative to the cradle (392). During surgery, the optical scanner (380) also determines the position of the forehead (394) relative to a base ring (306). An array (300) for receiving radiation emitted from the probe (302) and from the base ring (306) generates signals indicating the position of the tip of the probe (302) relative to the base ring (306). A stereotactic imaging system selects and displays the image of the head closest to the measured position of the tip of the probe (302).
   














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Inventor     Bucholz; Richard D. (St. Louis, MO)
Owner/Assignee     St. Louis University (St. Louis, MO)
Patent assignment
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Publication Date     December 22, 1998
Application Number     08/543,516
PAIR File History     Application Data   Transaction History
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Litigation
Filing Date     October 16, 1995
US Classification    
Int'l Classification    
Examiner     Smith; Ruth S.
Assistant Examiner    
Attorney/Law Firm     Finnegan, Henderson, Farabow, Garrett & Dunner, L.L.P.
Address
Parent Case     This is a continuation of application Ser. No. 07/858,980 filed on May 15, 1992 now abandoned which is a continuation-in-part of application Ser. No. 07/600,753 filed on Oct. 19, 1990, now abandoned.
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Patent Tags     indicating position surgical probe within head on image head
   
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