Catheter locatable with non-ionizing field and method for locati

Details Catheter locatable with non-ionizing field and method for locati Catheter locatable with non-ionizing field and method for locati

1990-09-12

1991-08-27

Smith, Ruth S.

Surgery

Truss

Pad

128658, A61B 506

Patent

active

050424866

ABSTRACT:
A catheter locatable with a non-ionizing field, such as an electromagnetic or acoustic field, has a transmitting or receiving antenna for the relevant field at its tip. Receiving or transmitting antennas for the non-ionizing field are attached to a patient in which the catheter is disposed. A receiver or transmitter is connected to these antennas, and converts the received field waves into electrical locating or image signals. The location of the catheter tip is then portrayed on a display combined with an image of the blood vessel structure acquired in a different manner, such as by x-ray imaging.

REFERENCES:
patent: 3847157 (1974-11-01), Caillouette et al.
patent: 4173228 (1979-11-01), Van Steenwyk et al.
patent: 4431005 (1984-02-01), McCormick
patent: 4697595 (1987-10-01), Breyer et al.
patent: 4905698 (1990-03-01), Strohl et al.
patent: 4989608 (1991-02-01), Ratner
"Ultrasonically Marked Catheter-A Method for Positive Echographic Catheter Position Identification", Breyer et al., Medical and Biological Engineering and Computing, vol. 22, No. 3 (1984), pp. 268-271.

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