04431005 is referenced by 319 patents and cites 2 patents.

A method of and apparatus for determining very accurately the position of a device inside biological tissue comprising a detecting instrument with a probe, which probe generates a small magnetic field which can be disturbed by a magnetically permeable metal in the device inside the tissue when a narrow end of the probe is positioned immediately adjacent to tissue containing the metal, whereby after the metal-carrying device is inserted in the tissue, the end of the probe is used to precisely locate the device by scanning the tissue until the magnetic field is disturbed which causes the instrument to emit a signal.

Title
Method of and apparatus for determining very accurately the position of a device inside biological tissue
Application Number
6/261531
Publication Number
4431005
Application Date
May 7, 1981
Publication Date
February 14, 1984
Inventor
William McCormick
Carlisle
MA, US
Assignee
McCormick Laboratories
MA, US
IPC
A61B 5/05
A61M 16/00
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