A - Human Necessities – 61 – B
Patent
A - Human Necessities
61
B
A61B 5/06 (2006.01) A61M 25/095 (2006.01) G01V 3/08 (2006.01) G01V 3/15 (2006.01) G01V 15/00 (2006.01) A61M 25/01 (2006.01)
Patent
CA 2171717
There is disclosed an apparatus and method for locating a medical tube within the body of a patient. The medical tube is located by a detection apparatus which senses the static magnetic field strength gradi- ent generated by a magnet associated with the medi- cal tube and indicates the value of the gradient to the user. The detection apparatus is moved about the body of the patient until the greatest gradient magnitude is indicated. The detection apparatus distinguishes the field strength of the magnet associated with the medi- cal tube from the earth's field strength by sensing the magnet's field strength at two different distances from the magnet.
L'invention concerne un appareil et un procédé de localisation d'un tube médical dans le corps d'un patient. Le tube médical est localisé par un appareil de détection qui capte le gradient d'intensité de champ magnétique statique produit par un aimant associé au tube médical et en indique la valeur à l'utilisateur. L'appareil de détection est déplacé sur le corps du patient jusqu'à ce qu'il indique la plus grande magnitude du gradient. Il distingue l'intensité du champ de l'aimant associé au tube médical de l'intensité de champ de la terre en captant celle de l'aimant à deux distances différentes de celui-ci.
Golden Robert N.
Silverstein Fred E.
Gowling Lafleur Henderson Llp
University Of Washington
LandOfFree
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