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:
Dec. 09, 1997
Filed:
Dec. 08, 1995
Jerome Segal, Chevy Chase, MD (US);
Other;
Abstract
A vascular dilatation device for enlarging a flow passage in an obstruction in a vessel carrying flowing blood. A flexible cylindrical dilatation member having first and second ends is placed in the flow passage in the obstruction. An intermediate portion lies between the first and second ends. The flexible cylindrical dilatation member also has an interior flow passage with a diameter and a longitudinally extending central axis extending therethrough. The diameter of the flow passage is variable with movement of the first and second ends relative to each other along the longitudinally extending central axis from a contracted to an expanded condition. A control mechanism causes relative axial movement between the first and second ends towards each other from an extended position to a contracted position. The control mechanism includes an inner flexible elongate tubular member between the first and second ends of the flexible cylindrical dilatation member. The inner flexible elongate tubular member is sufficiently rigid and causes elongation of the cylindrical dilatation member to decrease its diameter and to advance the cylindrical dilatation member through the obstruction in the vessel while preventing axial contraction of the cylindrical dilatation member.