Method of and apparatus for intraparenchymal positioning of medi

Details Method of and apparatus for intraparenchymal positioning of medi Method of and apparatus for intraparenchymal positioning of medi

1997-11-12

1999-08-03

Buiz, Michael

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

604164, 600434, A61M 3100

Patent

active

059318180

ABSTRACT:
A catheter and magnet combination adapted for intraparenchymal positioning of the catheter in the body with a magnetic field. The catheter has a proximal and distal ends and a lumen therebetween. A magnet is disposed in the distal end of the lumen so that the distal end of the catheter can be positioned within the body with the aid of an externally applied magnetic field. A tether is attached to the magnet and extends through the lumen and out the proximal end so that the magnet can be removed from the catheter through the lumen once the distal end of the catheter is properly positioned. In one embodiment of the invention, the tether is sufficiently stiff to be able to push the catheter through the tissue. With this embodiment, the magnetic field orients the magnet and thus the tip of the catheter, and some or all of the force for moving the catheter is applied via the tether.

REFERENCES:
patent: 4244362 (1981-01-01), Anderson
patent: 5425382 (1995-06-01), Golden et al.
patent: 5431460 (1995-07-01), Gabriel
patent: 5622169 (1997-04-01), Golden et al.
patent: 5624430 (1997-04-01), Eton et al.

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