05776144 is referenced by 159 patents and cites 14 patents.

Temporarily fixable positioning system (1) for secure, play-free fastening to the human body, preferably to the human skull has a base (4), a clampable ball-and-socket joint (3), a linear axis mechanism (2) fixed securely to it and a carriage (6) guided along the linear axis mechanism for receiving an actuator or sensor instrument (12). For intraoperative use, the positioning system is combined with a retractor (27). A head support (31) is provided for noninvasive diagnostic or therapeutic applications. The combination of the axial degree of freedom of linear axis (2) with the three rotational degrees of freedom of the ball-and-socket joint (3) allows four-axis, in situ positioning of the instrument on or in the skull, especially in the external auditory canal and an opened middle ear. The positioning system in combination with one of the holders enables precise positioning of an active end (14) of a guided instrument (12) relative to sensitive anatomical structures while avoiding risky relative movements.

Title
Device for positioning and fixing of therapeutic, surgical, or diagnostic instruments
Application Number
8/726494
Publication Number
5776144
Application Date
October 7, 1996
Publication Date
July 7, 1998
Inventor
Rolf Lehner
Esslingen
DE
Hans Leysieffer
Taufkirchen
DE
Agent
Sixbey Friedman Leedom & Ferguson
Agent
David S Safran
Assignee
IMPLEX Spezialhorgerate
DE
IPC
A61B 19/00
View Original Source