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:
Jul. 12, 1994
Filed:
Jul. 30, 1992
Applicant:
Inventor:
David H Rammler, Woodside, CA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B / ;
U.S. Cl.
CPC ...
128658 ; 12866202 ; 604280 ;
Abstract
Catheters are provided having a plurality of vanes external to a central core serving as channels for microbubbles. A track may be provided having grooves in which one of the vanes passes, which track provides additional microbubbles, so as to allow for following the movement of the catheter and track by ultrasonic imaging. The catheter provides for reduced abrasion, as well as ease of following the movement of the catheter through the patient's vessels.