05186174 is referenced by 247 patents and cites 10 patents.

The process comprises the steps of creating three reference points at an object and taking a tomogram of the object such that the three reference points define a first set of positional data in the tomogram. The object is then non-rigidly placed on a support for operation thereupon by an instrument which is mounted at a flexible arm containing sensors for sensing the movements of an instrument tip. The instrument tip is placed at the three reference points in order to create a second set of positional data which are in a fixed relationship to the first set of positional data. When the instrument is inserted into the object placed on the support, the positional data of the instrument tip during the insertion movement are sensed and related to the first set of positional data via the fixed relationship between the first and second sets of positional data. The positions of the inserted instrument within the object are thus reproduced in the tomogram for indicating and displaying, monitoring and recording purposes.

Title
Process and device for the reproducible optical representation of a surgical operation
Application Number
7/445838
Publication Number
5186174
Application Date
January 29, 1990
Publication Date
February 16, 1993
Inventor
Philipp Moll
Aachen
DE
Dietrich Meyer Ebrecht
Aachen
DE
Ralph Mosges
Munich
DE
Georg Schlondorff
Roetgen
DE
Agent
McGlew and Tuttle
Assignee
G M Piaff
DE
IPC
A61B 19/00
View Original Source