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:
Sep. 09, 1986
Filed:
Jul. 22, 1983
Andreas Weikl, Erlangen, DE;
Volkmar Merkel, Erlangen, DE;
Schneider Medintag AG, Zurich, CH;
Abstract
For the provision of an apparatus to lessen or remove points of constriction in vessels of all types whereby ruptures and tears are to be avoided in the vessel walls and, during the treatment of stenosis in blood vessels, the danger of infarction is to be avoided, through use of a treatment catheter (1) that is equipped with two expandable balloons (4, 5) which seal off both sides of a point of constriction (6) in a vessel, whereby the degree of expansion of both balloons (4, 5) can be controlled externally, it is proposed that there be mounted in the wall of the treatment catheter (1) within the region confined by the balloons (4, 5) an inlet piece (A) for the supply of media capable of dissolving or crumbling into smaller particles the material (7) at the point of constriction and an outlet piece (B) for the removal of the material (7) dissolved or crumbled at the point of constriction, whereby these pieces are connected with an externally accessible conduit (10, 11) (FIG. 1).