04587975 is referenced by 347 patents and cites 9 patents.

An improved dilation catheter for use in the conduct of transluminal angioplasty techniques whereby measurements may be taken to determine patency during the course of the procedure. The catheter comprises an elongated tubular member having an inelastic expander member proximate its distal end. The expander is adapted to be inflated and deflated through the introduction of a suitable fluid into the lumen of the tubular member. Disposed on either side of the expander member are sets of electrodes, preferably ring electrodes. Associated with each such electrode is a conductor which runs the length of the catheter from an associated ring electrode to the proximal end of the catheter where such conductors are connected to circuitry for performing impedance plethysmography. Thus, as the improved catheter is routed through the vascular system, the cross-sectional size of the blood vessel at plural points proximate the distal end of the catheter can be assessed, both for locating stenotic lesions to be treated and for later determining the efficacy of the treatment process.

Title
Dimension sensitive angioplasty catheter
Application Number
6/626719
Publication Number
4587975
Application Date
July 2, 1984
Publication Date
May 13, 1986
Inventor
Brian D Pederson
St. Paul
MN, US
Rodney W Salo
Columbia Heights
MN, US
Agent
Thomas J Nikolai
Orrin M Haugen
Assignee
Cardiac Pacemakers
MN, US
IPC
A61B 5/02
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