The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 28, 1995
Filed:
Apr. 11, 1994
James M Griffith, Phoenix, AZ (US);
Other;
Abstract
A catheter for delivering both a probe and a balloon to a lumen in a subject. The probe is most preferably an ultrasonic imaging probe and the balloon a dilation balloon. The catheter comprises, at a proximal end, a triple lumen section that comprises a guidewire lumen, a probe lumen and a lumen for communicating with a balloon. As the lumens run toward the distal end of the catheter, a transition section is provided that merges the probe lumen and the guidewire lumen into a single lumen. The single lumen continues distally and is surrounded by the balloon. Distal of the balloon, the single lumen defines an imaging window section. The catheter terminates in a distal tip that is preferably tapered along both its inner and outer diameters; the tip comprises a distal lumen sized to accept a guidewire. In certain preferred embodiments, radio opaque markers are used to delineate the various sections of the catheter. Among its many advantages, the present invention readily permits back loading of a guidewire.