Title:
IMPROVEMENTS RELATING TO SURGICAL DEVICES AND THEIR LOCATION
Document Type and Number:
WIPO Patent Application WO1999009436
Kind Code:
B1
Abstract:
A surgical device, e.g. a catheter or a prosthesis, is disclosed which is characterized in that it carries, at a predetermined location, a tag formed of a high permeability, low coercivity magnetic material. Also disclosed is a method of locating a surgical device within the human or animal body, which comprises inserting the device into the body together with a magnetically active marker, the marker being associated with a predetermined location on the surgical device; and sensing the position of the marker, and hence of the surgical device, by remotely detecting its magnetic response to an interrogating signal. Systems for use in this method are also disclosed.
Inventors:
ENGLAND MARK (GB)
DAMES ANDREW NICHOLAS (GB)
CROSSFIELD MICHAEL DAVID (GB)
DAMES ANDREW NICHOLAS (GB)
CROSSFIELD MICHAEL DAVID (GB)
Application Number:
PCT/GB1998/002479
Publication Date:
April 08, 1999
Filing Date:
August 19, 1998
Export Citation:
Assignee:
FLYING NULL LTD (GB)
ENGLAND MARK (GB)
DAMES ANDREW NICHOLAS (GB)
CROSSFIELD MICHAEL DAVID (GB)
ENGLAND MARK (GB)
DAMES ANDREW NICHOLAS (GB)
CROSSFIELD MICHAEL DAVID (GB)
International Classes:
G01V3/00; A61B17/34; A61B19/00; A61M25/00; G01V15/00; (IPC1-7): G01V15/00
Download PDF:
Previous Patent: METHOD AND APPARATUS FOR DETECTING IMPENDING EARTHQUAKES
Next Patent: PHOTONIC CRYSTAL MATERIALS AND A METHOD OF PREPARATION THEREOF
Next Patent: PHOTONIC CRYSTAL MATERIALS AND A METHOD OF PREPARATION THEREOF